JP2008006817A - Polymer member having incompatible material maldistributed polymer layer and surface uneven tape or sheet made of the polymer member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a polymer member with a laminated structure comprising a polymer layer where incompatible material is maldistributed and a monomer absorbing layer. <P>SOLUTION: The polymer member comprises a laminated structure comprising a polymer layer and a monomer-absorbing layer capable of absorbing at least one of monomer components constituting the polymer, and the polymer layer is an incompatible-substance-unevenly-containing polymer layer which keeps the incompatible substance incompatible with the polymer distributed in the state that the incompatible substance is partially distributed either at the interface on the opposite side to the monomer-absorbing layer or in an area near the interface. The polymer member is preferable a cover film to be laminated on the surface opposed to the monomer absorbing layer in the polymer layer. The area near the interface on the opposite side to the monomer-absorbing layer is preferable to be a region ranging from the interface on the opposite side to the monomer-absorbing layer in the thickness direction up to 50% of the overall thickness. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a polymer member having an immiscible substance uneven distribution polymer layer, and a surface uneven tape or sheet comprising the polymer member.

  For example, when it is desired to form a layer having fine particles on the surface of a sheet or film as a base material, for example, fine particles are dispersed in a solution in which a polymer component is dissolved in an organic solvent as a binder, and this is coated on the base material. Further, the solvent is volatilized by heat drying, whereby a fine particle layer (a layer containing fine particles) can be obtained on the substrate surface. This method is difficult when the base material is dissolved by a solvent, or when the base material has low heat resistance and is easily melted and deformed by heat drying, and the surface is sticky like an adhesive layer. Even if it is rich, it is difficult to coat the substrate surface. Furthermore, a solvent such as a solvent or water must be dried, which is not preferable from the viewpoint of environment and energy saving.

  In addition, the fine particle layer can be formed on the surface of the substrate sheet by forming a fine particle layer on the release-treated film and transferring it to the base material sheet. In this case, the fine particle layer surface is in contact with the release sheet surface. Since the exposed surface is exposed, the surface tends to be smooth and is not suitable for the purpose of making the surface uneven using particles. Further, when the affinity and compatibility between the base material and the fine particle layer are low, the adhesion between the base material layer and the fine particle layer is poor, and problems such as peeling between the layers are likely to occur. Furthermore, when both the base material and the fine particle layer have almost no adhesiveness, it is difficult to bond them together, and it is necessary to bond them after applying an adhesive or the like to either one or both. come.

  On the other hand, a tape or sheet having a non-smooth surface and an uneven surface (sometimes referred to as a “surface uneven sheet”) is used, for example, as an antiglare film (see Patent Documents 1, 2, and 3). In addition, it is used for various purposes for various purposes. This is due to properties such as the design property, light scattering property, and anti-blocking property of the surface uneven sheet.

  Conventionally, as a method for producing a surface uneven sheet, the surface of a sheet such as a tape or a sheet (which may be collectively referred to as “sheet”) is uneven by embossing such as roughening the surface of the sheet with an embossing roll or the like. Thus, a method for producing a surface uneven sheet is known (see Patent Document 4). In addition, when a surface uneven | corrugated sheet is manufactured using a thing with a low elastic modulus by this method, the surface uneven | corrugated sheet | seat after manufacture may return to the smooth surface during winding and storing. .

  In addition, as a conventional method for producing a surface uneven sheet, a solvent-based coating film formation as a composition containing particles (sometimes referred to as a “particle composition”) is applied to the sheet surface, and a volatile component ( For example, a method of manufacturing a surface uneven sheet by evaporating and removing a solvent, an organic compound, etc.) by heat drying, etc., reducing the thickness of the coating film, protruding the particle head, and making the sheet surface uneven. It is known (see Patent Document 5). In addition, according to this method, it was necessary to evaporate and remove volatile components such as a solvent by heat drying or the like in the production process. However, a comparison of a plastic sheet, a film (for example, a polyethylene film), a hard cord layer, etc. It was possible to give unevenness to the surface from a hard and high elastic modulus to a low elastic modulus such as an adhesive layer.

  However, in the method for producing a surface uneven sheet, when the above conventional method for producing a surface uneven sheet is used, the problem that the sheet with unevenness on the surface is limited to a sheet having a high elastic modulus, and evaporation removal of volatile components. The problem of troublesomeness due to the necessity of the vapor and the adverse effect on the human body and the environment due to the vapor of the volatile component occur.

JP 2001-91707 A JP 2000-275404 A JP 2003-248101 A JP 9-504325 gazette Japanese Patent Laid-Open No. 8-113768

Therefore, the object of the present invention is that a volatile component such as a solvent is not required for production, the distribution of the incompatible substance in the incompatible substance uneven distribution polymer layer can be controlled, and the incompatible substance uneven distribution is further achieved. An object of the present invention is to provide a polymer member having a laminated structure of an incompatible substance unevenly distributed polymer layer and a monomer absorption layer, which is excellent in adhesion between the polymer layer and the monomer absorption layer.
Another object of the present invention is to provide a surface uneven sheet comprising a polymer member having a laminated structure of an immiscible substance uneven distribution polymer layer and a monomer absorption layer by using particles as the incompatible substance.

  As a result of intensive studies to solve the above problems, the inventor has found that at least one surface of the monomer absorption layer is incompatible with a polymer obtained by polymerizing a polymerizable monomer and a polymerizable monomer. If an incompatible substance-containing polymerizable composition layer containing a compatible substance is provided, the incompatible substance moves in the incompatible substance-containing polymerizable composition layer, and the incompatible substance unevenly polymerizable composition A layered structure of the immiscible substance unevenly distributed polymer layer and the monomer absorption layer is obtained by polymerizing the incompatible substance unevenly distributed polymerizable composition layer, and the incompatible substance unevenly distributed polymer layer By using particles as an incompatible substance in the laminated structure of the monomer absorption layer, irregularities due to particles are formed on the surface opposite to the interface with the monomer absorption layer of the incompatible substance uneven distribution polymer layer It found that the wear, has led to the completion of the present invention.

  That is, the present invention is a polymer member having a laminated structure of a polymer layer and a monomer-absorbing layer capable of absorbing at least one monomer component constituting the polymer, wherein the polymer layer is a non-phase with respect to the polymer. There is provided a polymer member characterized by being a non-compatible substance unevenly distributed polymer layer containing a soluble incompatible substance in a form distributed unevenly at the interface opposite to the monomer absorption layer or in the vicinity of the interface.

  In the polymer member, a cover film is preferably laminated on the surface of the polymer layer opposite to the monomer absorption layer.

  The vicinity of the interface on the side opposite to the monomer absorption layer is preferably within 50% of the total thickness in the thickness direction from the interface on the side opposite to the monomer absorption layer.

  The monomer absorption layer is preferably a monomer absorption polymer layer made of a polymer.

  The monomer component constituting the polymer of the monomer-absorbing polymer layer is preferably in common with at least one monomer component constituting the polymer of the incompatible substance uneven distribution polymer layer.

  The incompatible substance is preferably a particle or a polymer.

  The polymer of the incompatible substance uneven distribution polymer layer is preferably an acrylic polymer.

  The incompatible substance unevenly distributed polymer layer is preferably an incompatible substance unevenly distributed pressure-sensitive adhesive layer.

  The polymer member preferably has a tape-like or sheet-like form. In the polymer member, it is preferable that the incompatible substance is particles, and the surface has irregularities due to the particles.

  The present invention also contains a polymerizable monomer and an incompatible substance that is incompatible with the polymer obtained by polymerizing the polymerizable monomer on at least one surface of the monomer absorption layer capable of absorbing the polymerizable monomer. By providing an incompatible substance-containing polymerizable composition layer comprising an incompatible substance-containing polymerizable composition, the incompatible substance is moved within the incompatible substance-containing polymerizable composition layer, thereby After obtaining an incompatible substance unevenly polymerizable composition layer in which a soluble substance is distributed unevenly at the interface opposite to the monomer absorption layer or near the interface, the incompatible substance unevenly polymerizable composition layer is polymerized. And forming an incompatible substance unevenly distributed polymer layer in which the incompatible substance is unevenly distributed at the interface opposite to the monomer absorbing layer or in the vicinity of the interface, and the incompatible substance unevenly distributed polymer layer and the monomer absorbing layer. Having a laminated structure with Method for producing a polymer member, characterized in that to obtain a member.

  The present invention further provides a polymerizable monomer and an incompatible material that is incompatible with a polymer obtained by polymerizing the polymerizable monomer on the monomer-absorbing surface of the monomer-absorbing sheet capable of absorbing the polymerizable monomer. An incompatible substance-containing polymerizable composition layer composed of an incompatible substance-containing polymerizable composition, and a cover film laminated on the incompatible substance-containing polymerizable composition layer. The incompatible substance is moved in the polymerizable composition layer containing the incompatible substance and the incompatible substance is biased toward the interface opposite to the monomer absorption layer or in the vicinity of the interface. After obtaining the distributed incompatible substance unevenly distributed polymerizable composition layer, the incompatible substance unevenly distributed polymerizable composition layer is polymerized, and the incompatible substance is the interface opposite to the monomer absorption layer or the interface. Incompatible materials distributed in the vicinity Unevenly distributed polymer layer is formed, to provide a method for producing a polymer member, characterized in that to obtain a polymer member having a laminated structure of the immiscible material unevenly distributed polymer layer and the monomer-absorptive layer.

  In the method for producing the polymer member, the cover film preferably has peelability.

  In the method for producing the polymer member, the monomer absorption layer is preferably a monomer absorption polymer layer made of a polymer.

  In the method for producing a polymer member, it is preferable that the monomer component constituting the polymer of the monomer-absorbing polymer layer is common to at least one monomer component constituting the polymer of the incompatible substance uneven distribution polymer layer.

  In the method for producing the polymer member, it is preferable to use light irradiation in the polymerization of the incompatible substance uneven distribution polymerizable composition layer.

  In the method for producing the polymer member, the incompatible substance is preferably a particle or a polymer.

  In the method for producing the polymer member, an acrylic monomer is preferably used as the polymerizable monomer.

  In the method for producing a polymer member, the incompatible substance uneven distribution polymer layer is preferably an incompatible substance uneven distribution adhesive layer.

  In the method for producing the polymer member, it is preferable to obtain a polymer member having a tape-like or sheet-like form.

  In the method for producing the polymer member, it is preferable to use particles as the incompatible substance and to form irregularities due to the particles on the surface.

  According to the polymer member of the present invention, since it has the above-described configuration, it does not require a volatile component such as a solvent at the time of production, and the incompatible substance is distributed in the incompatible substance unevenly distributed polymer layer. The distributed portion can be controlled, and the adhesion between the incompatible substance uneven distribution polymer layer and the monomer absorption layer is excellent. Moreover, the surface uneven | corrugated sheet which consists of a polymer member which has a laminated structure of an immiscible substance uneven distribution polymer layer and a monomer absorption layer can be obtained by using particle | grains as an incompatible substance.

  The polymer member of the present invention is a polymer member having a laminated structure of a polymer layer and a monomer-absorbing layer capable of absorbing at least one monomer component constituting the polymer layer, and the polymer layer is non-polymeric. It is a polymer member which is an incompatible substance unevenly distributed polymer layer containing a compatible incompatible substance in a form distributed unevenly at the interface opposite to the monomer absorption layer or in the vicinity of the interface.

  In addition, an interface is a boundary surface when two different substances contact each other via a boundary surface. For example, in a polymer member, when an incompatible substance unevenly distributed polymer layer surface exists in the air, naturally The surface of the immiscible substance unevenly distributed polymer layer is an interface. In addition, in the incompatible substance uneven distribution polymer layer of the polymer member, the interface opposite to the interface with the monomer absorption layer or the vicinity of the interface is referred to as “layer surface or layer surface vicinity” or “surface or surface vicinity” There is.

  Therefore, the polymer member of the present invention includes an incompatible substance uneven distribution polymer layer in which an incompatible substance incompatible with the polymer is distributed unevenly on the surface of the layer or in the vicinity of the layer surface, and an incompatible substance uneven distribution polymer. You may have a laminated structure with the monomer absorption layer which can absorb the at least 1 sort (s) of monomer component which comprises the polymer of a layer.

  Such a polymer member contains an incompatible substance containing an incompatible substance that is incompatible with a polymer obtained by polymerizing a polymerizable monomer or a polymerizable monomer on at least one surface of the monomer absorption layer. By providing a polymerizable composition layer containing an incompatible substance using the polymerizable composition, the incompatible substance is moved in the polymerizable composition layer containing the incompatible substance, and the interface with the monomer absorption layer After obtaining an incompatible substance unevenly polymerizable composition layer containing an incompatible substance in a form distributed unevenly at the interface opposite to or near the interface (layer surface or near the layer surface), the incompatible substance is obtained. It can be produced by polymerizing the material unevenly polymerizable composition layer to form an incompatible material unevenly distributed polymer layer and obtaining a laminated structure of the incompatible material unevenly distributed polymer layer and the monomer absorption layer. In addition, you may use the monomer absorption layer of the monomer absorptive sheet | seat which is a sheet | seat which has a monomer absorption layer as a monomer absorption layer.

  In addition, the polymer member is used for the polymer obtained by polymerizing the polymerizable monomer and the polymerizable monomer on the monomer absorption surface of the monomer absorbent sheet capable of absorbing the polymerizable monomer (the monomer absorption layer surface of the monomer absorbent sheet). An incompatible substance-containing polymerizable composition layer comprising an incompatible substance-containing polymerizable composition containing an incompatible substance is laminated, and further on the incompatible substance-containing polymerizable composition layer A laminate having a structure in which a cover film is laminated is prepared, and the incompatible substance is moved in the incompatible substance-containing polymerizable composition layer, and the layer surface on the cover film side or the vicinity of the layer surface ( After obtaining an immiscible substance unevenly distributed polymerizable composition layer containing an incompatible substance in a form distributed unevenly on the interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface), light irradiation or heating By doing In a form in which the incompatible substance unevenly distributed polymerizable composition layer is polymerized and distributed unevenly on the layer surface on the cover film side or in the vicinity of the layer surface (an interface on the side opposite to the interface with the monomer absorption layer or the vicinity of the interface). It is also produced by using a method of producing an incompatible substance unevenly distributed polymer layer containing an incompatible substance, and obtaining a polymer member having a laminated structure of the incompatible substance unevenly distributed polymer layer and the monomer absorption layer. be able to.

  The shape of the polymer member is not particularly limited as long as it has a laminated structure of an immiscible substance unevenly distributed polymer layer and a monomer absorption layer, and is appropriately selected as necessary, but usually has a tape-like or sheet-like shape.

  In the polymer member, the surfaces of the incompatible substance uneven distribution polymer layer and the monomer absorption layer may be protected by a cover film. In addition, the cover film may have peelability or may not have peelability.

  When using the polymer member, the cover film may be peeled off, or may be maintained as it is without being peeled off, and may constitute a part of the polymer member.

  In addition, the polymer film is used by exposing the interface (layer surface) opposite to the interface with the monomer absorption layer of the immiscible substance uneven distribution polymer layer by peeling the cover film on the immiscible substance uneven distribution polymer layer. In this case, an interface (layer surface) opposite to the interface with the monomer absorption layer is usually used as a use surface.

  The incompatible substance-containing polymerizable composition contains at least a polymerizable monomer that can be polymerized by light or heat and an incompatible substance. Moreover, you may contain the polymerization initiator (For example, a photoinitiator, a thermal polymerization initiator, etc.) as needed. In particular, in the polymer member, the immiscible substance unevenly distributed polymer layer formed by the particle-containing polymerizable composition, which is an incompatible substance-containing polymerizable composition using fine particles (particles) as the incompatible substance, This is a particle-containing polymerized cured layer obtained by polymerizing and curing a particle-containing polymerizable composition layer as a layer made of a soluble substance-containing polymerizable composition (incompatible substance-containing polymerizable composition layer), and particles are unevenly distributed in the layer. To have in the form.

  In such a polymer member having a particle-blended polymerization cured layer as a non-compatible substance unevenly distributed polymer layer, the particles as the incompatible substance are in the surface of the particle-blended polymerization cured layer or in the vicinity of the surface (monomer absorption layer and Therefore, it has irregularities due to particles on the surface of the particle-containing polymerization / curing layer (interface on the side opposite to the monomer-absorbing layer of the particle-containing polymerization / curing layer). For this reason, when the particle | grains as an incompatible substance are used, the polymer member which has the surface unevenness | corrugation by particle | grains can be obtained. In particular, a polymer member having particles as an incompatible substance, having surface irregularities due to the particles, and having a tape-like or sheet-like form as it is is a tape or sheet having an irregularity on the surface (simply referred to as “surface irregular sheet”). Or a member constituting a part of the surface uneven sheet.

  The surface uneven sheet is formed by, for example, providing a particle-containing polymerizable composition layer containing particles and a polymerizable monomer on at least one surface of the monomer absorption layer, thereby providing a particle-containing polymerizable composition layer. Particles having an unevenly distributed polymerizable composition containing particles in such a manner that the particles are moved in the active composition layer and distributed unevenly on the surface or in the vicinity of the surface (an interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface). It can be prepared by polymerizing the particle unevenly polymerizable composition layer after forming a physical layer, forming a particle unevenly distributed cured layer, and obtaining a laminated structure of the particle-containing polymerized cured layer and the monomer absorption layer. .

  The surface uneven sheet is a cover film in which a particle-containing polymerizable composition layer is formed on the monomer-absorbing surface of the monomer-absorbing sheet capable of absorbing a polymerizable monomer, and further, a peelable cover film on the particle-containing polymerizable composition layer. Particle-laminated photopolymerization that has an irregularity (uneven structure) on the surface of the cover film by curing the particle-containing polymerizable composition layer by irradiating light, heating, or the like with a specific laminate having a laminated structure of It can manufacture by forming a hardened layer. When the surface uneven sheet produced using such a specific laminate is used, the cover film is usually peeled off, and the uneven surface (surface having the uneven structure) of the unevenly distributed photopolymerized cured layer is used. Used as In the present invention, a particle-containing polymerizable composition is used as the particle-containing composition.

[Incompatible substance-containing polymerizable composition layer (particle-containing polymerizable composition layer)]
The incompatible substance-containing polymerizable composition layer is a layer formed of an incompatible substance-containing polymerizable composition containing at least a polymerizable monomer that can be polymerized by light or heat and an incompatible substance. The incompatible substance-containing polymerizable composition layer may be a particle-containing polymerizable composition layer that is a layer formed from a particle-containing polymerizable composition using particles as an incompatible substance. Also, the incompatible substance-containing polymerizable composition layer is a particle-containing photopolymerization formed by a particle-containing photopolymerizable composition using particles as an incompatible substance and further using a photopolymerization initiator as a polymerization initiator. It may be a composition layer.

  The incompatible substance-containing polymerizable composition layer (i) undergoes polymerization by irradiation with active energy rays or heat, and cures to form a polymer layer (cured layer). In addition, (ii) when the incompatible substance-containing polymerizable composition layer is provided in a form in contact with the monomer absorption layer, the polymerizable monomer of the incompatible substance-containing polymerizable composition layer is absorbed by the monomer absorption layer, Furthermore, (iii) the incompatible substance moves in the incompatible substance-containing polymerizable composition layer, and the incompatible substance is at the interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface (layer surface Alternatively, it becomes an incompatible material unevenly distributed polymerizable composition layer that is unevenly distributed in the vicinity of the surface of the layer). From these things, an incompatible substance uneven distribution polymer layer is obtained.

  For example, the particle-containing photopolymerizable composition layer is a layer formed of a particle-containing photopolymerizable composition containing at least particles such as a polymerizable monomer, a photopolymerization initiator, and fine particles. Here, the (i) particle-containing photopolymerizable composition layer is cured by photopolymerization upon irradiation with active energy rays. Further, (ii) the polymerizable monomer of the particle-containing photopolymerizable composition layer is the specific laminate (a laminate having a laminate structure of a cover film, an incompatible substance-containing polymerizable composition layer, and a monomer-absorbing sheet). ) In the monomer-absorbing sheet that provides the monomer-absorbing surface of the monomer-absorbing sheet. Further, (iii) the particle-containing photopolymerizable composition layer is formed by moving the particles in the particle-containing photopolymerizable composition layer so that the particles are at the interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface. It becomes the particle uneven distribution photopolymerizable composition layer which is unevenly distributed in the (layer surface or the vicinity of the layer surface). From these things, the particle uneven distribution photopolymerization hardening layer which has an unevenness | corrugation on the surface is obtained. Therefore, the particle-containing polymerizable composition layer is a layer constituting a part of the specific laminate (a laminate having a laminate structure of a cover film, an incompatible substance-containing polymerizable composition layer and a monomer-absorbing sheet). In addition, this is a layer formed by photocuring a particle unevenly distributed photopolymerization / curing layer that provides a concavo-convex structure on a use surface of a polymer member using particles as an incompatible substance or a use surface of a surface concavo-convex sheet.

  It is important that the polymerizable monomer is a compound that can be polymerized using light energy or heat energy regardless of the reaction mechanism such as radical polymerization or cationic polymerization. Such polymerizable monomers include, for example, radical polymerizable monomers such as acrylic monomers that form acrylic polymers; epoxy monomers that form epoxy resins, oxetane monomers that form oxetane resins, and vinyl ether resins. Examples thereof include cationic polymerizable monomers such as vinyl ether monomers to be formed; combinations of polyisocyanates and polyols that form urethane resins; combinations of polycarboxylic acids and polyols that form polyester resins. Among these, acrylic monomers are preferably used. Moreover, you may use a polymerizable monomer individually or in combination of 2 or more types.

  The acrylic polymer, epoxy resin, oxetane resin, vinyl ether resin, urethane resin, and polyester resin are the base polymer of the acrylic pressure sensitive adhesive (adhesive) and the base of the epoxy pressure sensitive adhesive, respectively. It functions as a polymer, a base polymer of an oxetane pressure sensitive adhesive, a base polymer of a vinyl ether pressure sensitive adhesive, a base polymer of a urethane pressure sensitive adhesive, a base polymer of a polyester pressure sensitive adhesive, and the like. Therefore, the incompatible substance-containing polymerizable composition may be a pressure-sensitive adhesive composition (sometimes referred to as “an incompatible substance-containing pressure-sensitive adhesive composition”). Accordingly, the immiscible substance unevenly distributed polymer layer formed by curing the incompatible substance-containing polymerizable composition is an immiscible substance unevenly distributed formed by polymerizing the incompatible substance-containing pressure-sensitive adhesive composition. It may be an adhesive layer. In the present invention, since an acrylic monomer is suitably used as the polymerizable monomer, an incompatible substance-containing acrylic pressure-sensitive adhesive composition is preferably used as the incompatible substance-containing pressure-sensitive adhesive composition. That is, in the present invention, the polymer in the incompatible substance uneven distribution polymer layer constituting the polymer member is preferably an acrylic polymer.

  For example, the particle-blended photopolymerizable composition is obtained by blending particles with a pressure-sensitive adhesive composition containing at least a polymerizable monomer and a photopolymerization initiator (sometimes referred to as “photopolymerizable pressure-sensitive adhesive composition”) (“ It may be referred to as “particle-containing photopolymerizable pressure-sensitive adhesive composition”. Therefore, the particle-containing photopolymerization / curing layer formed by photocuring the particle-containing photopolymerizable composition layer is a particle-containing pressure-sensitive adhesive layer formed by photocuring the particle-containing pressure-sensitive adhesive composition layer. Also good. In the present invention, since an acrylic monomer is suitably used as the polymerizable monomer, a particle-blended photopolymerizable acrylic pressure-sensitive adhesive composition is preferably used as the particle-blended photopolymerizable pressure-sensitive adhesive composition.

  As such an acrylic monomer, (meth) acrylic acid ester is preferably used. As such a (meth) acrylic acid ester, a (meth) acrylic acid alkyl ester can be suitably used. Only one (meth) acrylic acid alkyl ester may be used, or two or more may be used in combination.

As such (meth) acrylic acid alkyl ester, for example, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, isopropyl (meth) acrylate, butyl (meth) acrylate, Isobutyl (meth) acrylate, s-butyl (meth) acrylate, t-butyl (meth) acrylate, pentyl (meth) acrylate, isopentyl (meth) acrylate, hexyl (meth) acrylate, (meth) acryl Heptyl acid, octyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate, nonyl (meth) acrylate, isononyl (meth) acrylate, decyl (meth) acrylate, (meth) Isodecyl acrylate, undecyl (meth) acrylate, (meth) acrylate Sil, tridecyl (meth) acrylate, tetradecyl (meth) acrylate, pentadecyl (meth) acrylate, hexadecyl (meth) acrylate, heptadecyl (meth) acrylate, octadecyl (meth) acrylate, nonadecyl (meth) acrylate (Meth) acrylic acid C _1-20 alkyl ester such as eicosyl (meth) acrylate [preferably (meth) acrylic acid C _2-14 alkyl ester, more preferably (meth) acrylic acid C _2-10 alkyl ester] Etc.

  Moreover, as (meth) acrylic acid ester other than (meth) acrylic acid alkyl ester, for example, it has an alicyclic hydrocarbon group such as cyclopentyl (meth) acrylate, cyclohexyl (meth) acrylate, isobornyl (meth) acrylate ( Examples thereof include (meth) acrylic acid esters, (meth) acrylic acid esters having an aromatic hydrocarbon group such as phenyl (meth) acrylate, and polyalkylene glycol (meth) acrylates.

  Such (meth) acrylic acid esters can be used alone or in combination of two or more. In addition, when (meth) acrylic acid ester is used as a monomer main component constituting an incompatible substance-containing acrylic pressure-sensitive adhesive composition or particle-containing photopolymerizable acrylic pressure-sensitive adhesive composition, (meth) acrylic acid It is important that the ratio of the ester [particularly, (meth) acrylic acid alkyl ester] is, for example, 60% by weight or more (preferably 80% by weight or more) with respect to the total amount of the monomer components constituting these pressure-sensitive adhesive compositions. It is.

  The incompatible substance-containing acrylic pressure-sensitive adhesive composition and particle-containing photopolymerizable acrylic pressure-sensitive adhesive composition include various copolymerizable monomers such as polar group-containing monomers and polyfunctional monomers as monomer components. It may be used. By using a copolymerizable monomer as a monomer component, for example, the adhesive force of an incompatible substance-containing acrylic pressure-sensitive adhesive composition or particle-containing photopolymerizable acrylic pressure-sensitive adhesive is improved, or an incompatible substance-containing acrylic type is used. The cohesive force of the pressure-sensitive adhesive or the particle-containing photopolymerizable acrylic pressure-sensitive adhesive can be increased. In addition, a copolymerizable monomer can be used individually or in combination of 2 or more types.

  Examples of the polar group-containing monomer include carboxyl group-containing monomers such as (meth) acrylic acid, itaconic acid, maleic acid, fumaric acid, crotonic acid, and isocrotonic acid or anhydrides thereof (such as maleic anhydride); Hydroxyl-containing monomers such as hydroxyethyl acrylate, hydroxypropyl (meth) acrylate, hydroxyalkyl (meth) acrylate such as hydroxybutyl (meth) acrylate; acrylamide, methacrylamide, N, N-dimethyl (meth) acrylamide, Amide group-containing monomers such as N-methylol (meth) acrylamide, N-methoxymethyl (meth) acrylamide, N-butoxymethyl (meth) acrylamide; aminoethyl (meth) acrylate, dimethylaminoethyl (meth) acrylate, ( Meta Amino group-containing monomers such as t-butylaminoethyl acrylate; glycidyl group-containing monomers such as glycidyl (meth) acrylate and methyl glycidyl (meth) acrylate; cyano group-containing monomers such as acrylonitrile and methacrylonitrile; N-vinyl 2-pyrrolidone, (meth) acryloylmorpholine, N-vinylpyridine, N-vinylpiperidone, N-vinylpyrimidine, N-vinylpiperazine, N-vinylpyrazine, N-vinylpyrrole, N-vinylimidazole, N-vinyl Examples include heterocyclic-containing vinyl monomers such as oxazole. As the polar group-containing monomer, a carboxyl group-containing monomer such as acrylic acid or an anhydride thereof is suitable.

  The amount of the polar group-containing monomer can be appropriately adjusted depending on the purpose and application of the polymer member to be obtained. For example, when the polymer member is used in an application where adhesion with an immiscible substance unevenly distributed polymer layer is required, the monomer It is 30 weight% or less (for example, 1-30 weight%) with respect to the component whole quantity, Preferably it is 3-20 weight%. When the usage amount of the polar group-containing monomer exceeds 30% by weight with respect to the total amount of the monomer components, for example, the cohesive force of the incompatible substance-containing acrylic pressure-sensitive adhesive or the particle-containing photopolymerizable acrylic pressure-sensitive adhesive becomes too high. The pressure-sensitive adhesiveness of the incompatible substance-containing acrylic pressure-sensitive adhesive or the particle-containing photopolymerizable acrylic pressure-sensitive adhesive may be lowered. In addition, when there is too little usage-amount of a polar group containing monomer (for example, less than 1 weight% with respect to the monomer component whole quantity for preparing an incompatible substance containing acrylic adhesive and particle-containing photopolymerizable acrylic adhesive) For example, the cohesive force of an incompatible substance-containing acrylic pressure-sensitive adhesive or particle-containing photopolymerizable acrylic pressure-sensitive adhesive is lowered, and there is a possibility that high shearing force cannot be obtained.

  In addition, when the polymer member is used in an application where hard physical properties are required in the incompatible substance uneven distribution polymer layer (for example, film application or hard coat application), the amount of the polar group-containing monomer is relative to the total amount of monomer components. And 95% by weight or less (for example, 0.01 to 95% by weight), preferably 1 to 70% by weight. When the amount of the polar group-containing monomer exceeds 95% by weight, for example, water resistance is not sufficient, and the quality of the polymer member may vary greatly depending on the usage environment (humidity, moisture, etc.). If the amount of the polar group-containing monomer is too small (for example, 0.01% by weight or less), a (meth) acrylic acid ester (for example, isobornyl acrylate) having a high glass transition temperature (Tg) in order to obtain hard physical properties. ) And the amount of the polyfunctional monomer are increased, and the resulting polymer member may be too brittle.

  Examples of the polyfunctional monomer include hexanediol di (meth) acrylate, (poly) ethylene glycol di (meth) acrylate, (poly) propylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, penta Erythritol di (meth) acrylate, pentaerythritol tri (meth) acrylate, dipentaerythritol hexa (meth) acrylate, trimethylolpropane tri (meth) acrylate, tetramethylol methane tri (meth) acrylate, allyl (meth) acrylate, vinyl ( (Meth) acrylate, divinylbenzene, epoxy acrylate, polyester acrylate, urethane acrylate, butyl di (meth) acrylate, hexyl di (meth) acrylate Etc., and the like.

  The amount of the polyfunctional monomer can be appropriately adjusted depending on the purpose and application of the polymer member to be obtained. For example, when the polymer member is used in an application where adhesion with an immiscible substance unevenly distributed polymer layer is required, the monomer It is 2 wt% or less (for example, 0.01 to 2 wt%), preferably 0.02 to 1 wt%, based on the total amount of components. If the amount of the polyfunctional monomer used exceeds 2% by weight based on the total amount of the monomer components, for example, the cohesive force of the incompatible substance-containing acrylic pressure-sensitive adhesive or particle-containing photopolymerizable acrylic pressure-sensitive adhesive becomes too high. The pressure-sensitive adhesiveness may be reduced. If the amount of the polyfunctional monomer is too small (for example, 0.01 wt.% With respect to the total amount of monomer components for preparing an incompatible substance-containing acrylic pressure-sensitive adhesive or particle-containing photopolymerizable acrylic pressure-sensitive adhesive) For example, the cohesive force of an incompatible substance-containing acrylic pressure-sensitive adhesive or particle-containing photopolymerizable acrylic pressure-sensitive adhesive may be reduced.

  In addition, when the polymer member is used in applications where hard physical properties are required in the immiscible substance uneven distribution polymer layer (for example, film application or hard coat application), the amount of polyfunctional monomer used is the total amount of monomer components It is 95 weight% or less (for example, 0.01 to 95 weight%), Preferably, it is 1 to 70 weight%. If the amount of the polyfunctional monomer used exceeds 95% by weight based on the total amount of the monomer components, the curing shrinkage at the time of polymerization may increase, and it may become impossible to obtain a uniform film or sheet-shaped polymer member, or the resulting polymer The member may become too brittle. Moreover, when there is too little usage-amount of a polyfunctional monomer (for example, it is 0.01 weight% or less), there exists a possibility that it may become impossible to obtain the polymer member which has sufficient solvent resistance and heat resistance.

  Examples of copolymerizable monomers other than polar group-containing monomers and polyfunctional monomers include vinyl esters such as vinyl acetate and vinyl propionate; aromatic vinyl compounds such as styrene and vinyltoluene; ethylene, butadiene, and isoprene. Olefins or dienes such as isobutylene; Vinyl ethers such as vinyl alkyl ether; Vinyl chloride; Alkoxyalkyl (meth) acrylate monomers such as methoxyethyl (meth) acrylate and ethoxyethyl (meth) acrylate; Vinylsulfonic acid Sulfonic acid group-containing monomers such as sodium; phosphate group-containing monomers such as 2-hydroxyethylacryloyl phosphate; imide group-containing monomers such as cyclohexylmaleimide and isopropylmaleimide; 2-methacryloylo Isocyanate group-containing monomers such as phenoxyethyl isocyanate; fluorine-containing (meth) acrylate; and a silicon atom-containing (meth) acrylate.

  The polymerization initiator may be used as necessary, and for example, either a thermal polymerization initiator or a photopolymerization initiator (photoinitiator) may be used. In the present invention, when forming an immiscible substance unevenly distributed polymer layer, it is possible to use a curing reaction by heat or active energy rays using a polymerization initiator such as a thermal polymerization initiator or a photopolymerization initiator (photoinitiator). it can. Therefore, the immiscible substance unevenly distributed polymerizable composition layer can be cured while maintaining a structure in which the incompatible substance is unevenly distributed in the layer, and the incompatible substance is opposite to the interface with the monomer absorption layer. It is possible to easily form an immiscible substance uneven distribution polymer layer that is unevenly distributed on the side interface or in the vicinity of the interface (layer surface or layer surface vicinity).

  The photopolymerization initiator is not particularly limited. For example, benzoin ether photopolymerization initiator, acetophenone photopolymerization initiator, α-ketol photopolymerization initiator, aromatic sulfonyl chloride photopolymerization initiator, photoactive oxime. A photopolymerization initiator, a benzoin photopolymerization initiator, a benzyl photopolymerization initiator, a benzophenone photopolymerization initiator, a ketal photopolymerization initiator, a thioxanthone photopolymerization initiator, or the like can be used. A photoinitiator can be used individually or in combination of 2 or more types.

  Specifically, the ketal photopolymerization initiator includes, for example, 2,2-dimethoxy-1,2-diphenylethane-1-one [for example, trade name “Irgacure 651” (manufactured by Ciba Specialty Chemicals), etc. ] Etc. are included. Examples of the acetophenone-based photopolymerization initiator include 1-hydroxycyclohexyl phenyl ketone [for example, trade name “Irgacure 184” (manufactured by Ciba Specialty Chemicals)], 2,2-diethoxyacetophenone, 2,2-dimethoxy. -2-phenylacetophenone, 4-phenoxydichloroacetophenone, 4- (t-butyl) dichloroacetophenone, and the like. Examples of the benzoin ether photopolymerization initiator include benzoin methyl ether, benzoin ethyl ether, benzoin propyl ether, benzoin isopropyl ether, and benzoin isobutyl ether. As the acylphosphine oxide photopolymerization initiator, for example, trade name “Lucirin TPO” (manufactured by BASF) can be used. Examples of the α-ketol photopolymerization initiator include 2-methyl-2-hydroxypropiophenone and 1- [4- (2-hydroxyethyl) phenyl] -2-methylpropan-1-one. . Examples of the aromatic sulfonyl chloride photopolymerization initiator include 2-naphthalenesulfonyl chloride. Examples of the photoactive oxime photopolymerization initiator include 1-phenyl-1,1-propanedione-2- (o-ethoxycarbonyl) -oxime. Examples of the benzoin photopolymerization initiator include benzoin. Examples of the benzyl photopolymerization initiator include benzyl. Examples of the benzophenone-based photopolymerization initiator include benzophenone, benzoylbenzoic acid, 3,3′-dimethyl-4-methoxybenzophenone, polyvinyl benzophenone, α-hydroxycyclohexyl phenyl ketone, and the like. Examples of the thioxanthone photopolymerization initiator include thioxanthone, 2-chlorothioxanthone, 2-methylthioxanthone, 2,4-dimethylthioxanthone, isopropylthioxanthone, 2,4-diisopropylthioxanthone, dodecylthioxanthone, and the like.

  The amount of the photopolymerization initiator used is not particularly limited. For example, the photopolymerization initiator is used in an amount of 0.01 to 5 wt. Part (preferably 0.05 to 3 parts by weight).

  In the present invention, the immiscible substance unevenly distributed polymerizable composition layer is cured to form an incompatible substance unevenly distributed polymer layer (for example, the particle unevenly distributed polymerizable composition layer is cured and the particle unevenly distributed photopolymerized cured layer is formed. For example, a curing reaction by active energy rays may be used. Examples of such active energy rays include ionizing radiation such as α rays, β rays, γ rays, neutron rays, electron rays, and ultraviolet rays, and ultraviolet rays are particularly preferable. The irradiation energy, irradiation time, irradiation method, and the like of the active energy ray are determined by curing the incompatible substance unevenly polymerizable composition layer to form an incompatible substance unevenly distributed polymer layer (for example, a particle unevenly distributed polymerizable composition). There is no particular limitation as long as the material layer can be cured to form a particle unevenly distributed photopolymerization cured layer.

  Examples of the thermal polymerization initiator include azo polymerization initiators [for example, 2,2′-azobisisobutyronitrile, 2,2′-azobis-2-methylbutyronitrile, 2,2′- Azobis (2-methylpropionic acid) dimethyl, 4,4'-azobis-4-cyanovaleric acid, azobisisovaleronitrile, 2,2'-azobis (2-amidinopropane) dihydrochloride, 2,2'-azobis [2- (5-Methyl-2-imidazolin-2-yl) propane] dihydrochloride, 2,2'-azobis (2-methylpropionamidine) disulfate, 2,2'-azobis (N, N'- Dimethyleneisobutylamidine) dihydrochloride], peroxide-based polymerization initiators (eg, dibenzoyl peroxide, tert-butylpermaleate, etc.), Box-based polymerization initiator (e.g., an organic peroxide / vanadium compound; the organic peroxide / dimethylaniline; naphthenic acid metal salt / butyl aldehyde, a combination such as aniline or acetylbutyrolactone), and the like. The amount of the thermal polymerization initiator used is not particularly limited as long as it can be used as a thermal polymerization initiator. If a redox polymerization initiator is used as a thermal polymerization initiator, it can be polymerized at room temperature.

  The incompatible substance-containing polymerizable composition and the particle-containing photopolymerizable composition may contain appropriate additives as necessary. Examples of such additives include surfactants (for example, ionic surfactants, silicone-based surfactants, fluorine-based surfactants), and crosslinking agents (for example, polyisocyanate-based crosslinking agents, silicone-based crosslinking agents). Agents, epoxy crosslinkers, alkyl etherified melamine crosslinkers, etc.) and tackifiers (for example, rosin derivative resins, polyterpene resins, petroleum resins, oil-soluble phenol resins, etc.) ), Plasticizers, fillers, anti-aging agents, antioxidants, colorants (such as pigments and dyes), and the like.

  For example, in order to color the incompatible substance unevenly distributed polymer layer and the particle unevenly distributed photopolymerization / cured layer, a pigment (colored pigment) that does not inhibit a polymerization reaction such as a photopolymerization reaction can be used. When black is desired as the coloring of the incompatible substance uneven distribution polymer layer or the particle uneven distribution photopolymerization cured layer, carbon black can be used as the coloring pigment. The amount of carbon black used is, for example, from the viewpoint of not inhibiting the degree of coloring and the above photopolymerization reaction, for example, with respect to 100 parts by weight of the total monomer components of the incompatible substance-containing polymerizable composition and the particle-containing photopolymerizable composition. It is desirable to select from 0.15 parts by weight or less (for example, 0.001 to 0.15 parts by weight), preferably 0.02 to 0.1 parts by weight.

  The incompatible substance is not particularly limited as long as it is a substance that is incompatible with the polymer component constituting the incompatible substance unevenly distributed polymer layer (insoluble), and even if it is an inorganic substance (inorganic substance), an organic substance (organic Substance). Further, the incompatible substance may be a solid or may have fluidity.

  Examples of the inorganic substance as the incompatible substance include particles (fine particles, fine particle powder) exemplified below. Examples of organic substances as incompatible substances include acrylic polymers, polyesters, polyurethanes, polyethers, silicones, natural rubbers, synthetic rubbers [especially styrene-isoprene-styrene rubber (SIS), styrene-butadiene-styrene rubber. (SBS) or polymers such as styrene-ethylene-butylene-styrene rubber (SEBS) and other oligomers; rosin tackifier resins, terpene tackifier resins, phenol tackifier resins , Hydrocarbon tackifier resins, ketone tackifier resins, polyamide tackifier resins, epoxy tackifier resins, elastomer tackifier resins and other tackifiers (tackifier resins); surfactants, antioxidants, Organic pigments, plasticizers, solvents (organic solvents) Such as liquid, and the like. Furthermore, water and aqueous solutions (for example, salt aqueous solution, acid aqueous solution, etc.) are also used as incompatible substances.

  Whether a certain substance is incompatible with a certain polymer is determined by visual observation, optical microscope, scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction, etc. General methods not according to the invention (for example, a method in which a substance is dissolved in a polymerizable monomer, and the polymerizable monomer is polymerized to determine a polymer; the polymer is dissolved in a solvent in which the polymer is dissolved, and the substance is added thereto) In the polymer, and if the polymer is a thermoplastic polymer, the polymer is heated and dissolved, and then the substance is blended into the polymer and then judged after cooling. It can be determined by how large the substance or aggregate thereof is dispersed. The criterion is that the substance or aggregate thereof has a diameter of 5 nm or more when it can be approximated to a sphere such as a sphere, a cube, or an indeterminate shape, and a columnar shape such as a rod, thin layer, or cuboid. If it can be approximated, the length of the longest side is 10 nm or more.

  As a more specific method of dispersing a substance or aggregate thereof in a polymer, for example, polymerizable monomer constituting the polymer: 100 parts by weight, photopolymerization initiator: 0.5 part by weight, substance or aggregate thereof: Add 50 parts by weight or uniformly disperse, then coat on PET film to a thickness of about 10 to 500 μm, and remove the influence of oxygen in an inert gas such as nitrogen or with a cover film. A method of polymerizing by irradiation; an amount corresponding to 50 parts by weight with respect to 100 parts by weight of the polymer in a solvent system in which the polymer is prepared in advance by any method such as solution polymerization or ultraviolet polymerization. The material or aggregate thereof is uniformly dispersed by stirring, etc., applied onto PET, and the thickness after solvent removal by drying is about 10 to 500 μm The method of doing is mentioned.

  When a substance is dispersed in a polymer, the substance in the polymer or an aggregate thereof can be approximated to a sphere such as a sphere, cube, or irregular shape, and the spherical substance or an aggregate thereof has a diameter of 5 nm or more. If it has, it can be regarded as an incompatible substance for the polymer, and the substance in the polymer or an aggregate thereof can be approximated to a columnar shape such as a rod shape, a thin layer shape, a rectangular parallelepiped shape, etc. If the length of the longest side of the solid substance or the aggregate thereof is 10 nm or more, it can be regarded as an incompatible substance for the polymer.

  Particles that are inorganic substances as incompatible substances can contribute to the formation of surface irregularities due to particles on the surface of the immiscible substance unevenly distributed polymer layer in polymer members using particles as incompatible substances, Although it does not restrict | limit as long as it can contribute to formation of the uneven structure on the use surface, For example, silica, silicone (silicone powder), calcium carbonate, clay, titanium oxide, talc, layered silicate, clay mineral, metal Inorganic particles such as powder, glass, glass beads, glass balloons, alumina balloons, ceramic balloons, titanium white, and carbon black; organic particles such as polyester beads, nylon beads, silicon beads, urethane beads, vinylidene chloride beads, and acrylic balloons; Acrylic particles, crosslinked styrene particles, Min resin particles, benzoguanamine resin, resin particles such as nylon resins; inorganic - organic hybrid particles. The particles may be solid or hollow (balloon). Moreover, you may use particle | grains individually or in combination of 2 or more types.

  Although it does not restrict | limit especially as a particle size (average particle diameter) of particle | grains, For example, it can select from the range of 0.5-500 micrometers (preferably 1-300 micrometers, More preferably, 3-100 micrometers). The particles may be used in combination of two or more kinds having different particle diameters.

  The shape of the particles may be any shape such as a spherical shape such as a true spherical shape or an elliptical spherical shape, an indefinite shape, a needle shape, a rod shape, or a flat plate shape. Moreover, the particle | grains may have a hole, a protrusion, etc. on the surface. In general, the particles are a perfect sphere or a near-spherical high sphericity in which the shape of the uneven structure of the surface unevenness by the particles on the surface of the incompatible substance uneven distribution polymer layer and the use surface of the surface uneven sheet is easy to align. Are preferred. Moreover, only one type of particle may be selected and used, or two or more types of particles having different shapes may be used in combination.

  The surface of the particles may be subjected to various surface treatments (for example, a low surface tension treatment with a silicone compound or a fluorine compound).

  The amount of the incompatible substance used in the incompatible substance unevenly distributed polymer layer is not particularly limited. For example, the amount of the monomer component of the incompatible substance-containing polymerizable composition that forms the incompatible substance unevenly distributed polymer layer is 100 parts by weight. On the other hand, it can be selected from a range of 0.001 to 70 parts by weight, preferably 0.01 to 50 parts by weight, more preferably 0.1 to 30 parts by weight. When the amount used exceeds 70 parts by weight, it may be difficult to produce the polymer member, or there may be a problem of strength in the polymer member after production. When the amount is less than 0.001 part by weight, the non-dispersed substance uneven distribution polymer layer is averagely dispersed on the surface or in the vicinity of the surface (an interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface). It may be difficult to distribute compatible substances.

  For example, the amount of the particles used when using the particles as an incompatible substance is not particularly limited, and is preferably 0.001 to 70 parts by weight, preferably 100 parts by weight based on 100 parts by weight of the monomer component of the particle-containing photopolymerizable composition. Can be selected from a range of 0.01 to 60 parts by weight, more preferably 0.1 to 50 parts by weight. In addition, when the amount of particles used is less than 10 parts by weight with respect to the monomer component of the particle-containing photopolymerizable composition, the surface roughness of the surface of the surface uneven sheet is averaged as a whole. It may be difficult to impart structure. Further, if the amount used exceeds 70 parts by weight, particles may fall off during the production of the surface uneven sheet, or the strength problem of the surface uneven sheet may occur.

  In the incompatible substance unevenly distributed polymer layer, the incompatible substance is distributed unevenly on the surface of the incompatible substance unevenly distributed polymer layer or in the vicinity of the surface (an interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface). is doing. That is, the incompatible substance is distributed in a layered manner on the surface of the immiscible substance uneven distribution polymer layer (interface opposite to the interface with the monomer absorption layer). For this reason, in a polymer member, the adhesiveness of a monomer absorption layer and an incompatible substance uneven distribution polymer layer is excellent. In addition, in the incompatible substance uneven distribution polymer layer, the thickness (height in the thickness direction from the surface of the incompatible substance uneven distribution polymer layer) of the portion where the incompatible substance is distributed (the layer distribution portion) is the incompatible substance. It can control by adjusting the usage-amount of.

  The incompatible substance-containing polymerizable composition and the particle-containing photopolymerizable composition can be prepared by uniformly mixing and dispersing the above components. Since this incompatible substance-containing polymerizable composition and particle-containing photopolymerizable composition are usually formed into a sheet shape by coating on a substrate, etc., they should have an appropriate viscosity suitable for the coating operation. It is good to leave. The viscosity of the incompatible substance-containing polymerizable composition or the particle-containing photopolymerizable composition may be determined by, for example, blending various polymers such as acrylic rubber and thickening additives, or in the incompatible substance-containing polymerizable composition. The polymerizable monomer and the polymerizable monomer in the particle-containing photopolymerizable composition can be partially polymerized by irradiation with light or heating. In addition, a desirable viscosity is a rotor: No. 5 rotors, rotation speed 10 rpm, measurement temperature: As a viscosity set on the conditions of 30 degreeC, it is 5-50 Pa.s, More preferably, it is 10-40 Pa.s. When the viscosity is less than 5 Pa · s, the liquid flows when applied on the substrate, and when it exceeds 50 Pa · s, the viscosity is too high to make application difficult.

  In application of the incompatible substance-containing polymerizable composition and the particle-containing photopolymerizable composition, for example, a conventional coater (for example, a comma roll coater, a die roll coater, a gravure roll coater, a reverse roll coater, a kiss roll). A coater, a dip roll coater, a bar coater, a knife coater, a spray coater, etc.).

  The incompatible substance-containing polymerizable composition layer and the particle-containing photopolymerizable composition layer include, for example, a surface provided by the monomer absorption layer, a monomer absorption surface of the monomer absorbent sheet, and a surface subjected to release treatment of the cover film. It is formed by applying on a predetermined surface of an appropriate support such as the above by a conventional coater.

[Monomer absorbent sheet]
The polymer member of the present invention forms an incompatible substance-containing polymerizable composition layer with an incompatible substance-containing polymerizable composition on one or both sides of the monomer absorption layer, and the incompatible substance-containing polymerizable composition layer The immiscible substance is moved within the substrate, and an incompatible substance unevenly polymerizable composition layer in which the incompatible substance is present at or near the interface opposite to the interface with the monomer absorption layer is obtained. It is produced by polymerizing a compatible substance unevenly distributed polymerizable composition layer to form an incompatible substance unevenly distributed polymer layer and obtaining a laminated structure of the incompatible substance unevenly distributed polymer layer and the monomer absorption layer.

  For example, the surface unevenness sheet as a polymer member that uses light irradiation in the polymerization, further uses particles as an incompatible substance, and has surface unevenness due to particles is a monomer of a monomer-absorbing sheet that can absorb a polymerizable monomer A structure in which a particle-blended photopolymerizable composition layer composed of a particle-blended photopolymerizable composition is formed on the absorption surface, and a cover film having peelability is further laminated on the particle-blended photopolymerizable composition layer. It is manufactured by forming a particle unevenly distributed photopolymerization cured layer in which particles are unevenly distributed on the cover film side by irradiating the laminated body having light with light. That is, in the specific laminate, the polymerizable monomer is absorbed from the particle-containing photopolymerizable composition layer provided in such a manner that the monomer-absorbing layer of the monomer-absorbing sheet is in contact with the monomer-absorbing surface. When the particles move in the composition layer, a particle unevenly distributed photopolymerizable composition layer is formed, and when the particle unevenly distributed photopolymerizable composition layer is cured by light irradiation, the specific laminate is formed. A surface uneven sheet is produced by forming a particle unevenly distributed photopolymerization cured layer having an uneven structure on the surface of the cover film. In addition, a monomer absorptive sheet comprises a part of said specific laminated body.

  Accordingly, the form and the like of the monomer-absorbing sheet are not particularly limited as long as it has at least a monomer-absorbing layer that provides a monomer-absorbing surface capable of absorbing at least one monomer component in the incompatible substance-containing polymerizable composition. .

  Examples of the monomer-absorbing sheet include a monomer-absorbing sheet composed of only a monomer-absorbing layer (sometimes referred to as a “baseless monomer-absorbing sheet”), and a monomer-absorbing layer in which a monomer-absorbing layer is provided on a substrate. Sheet (sometimes referred to as “monomer-absorbing sheet with substrate”). When the monomer-absorbing sheet is a substrate-less monomer-absorbing sheet, either surface may be used as the monomer-absorbing surface. On the other hand, in the case of a monomer-absorbing sheet with a substrate, the surface of the monomer-absorbing layer is monomer-absorbing. It becomes a surface.

(Monomer absorption layer)
The monomer-absorbing layer is a layer that provides a monomer-absorbing surface in the monomer-absorbing sheet, and is at least polymerized from an incompatible substance-containing polymerizable composition layer or a particle-containing photopolymerizable composition layer provided on the monomer-absorbing surface. It is only necessary that the functional monomer can be absorbed. Examples of such a monomer-absorbing layer include a paper sheet (for example, craft paper, crepe paper, Japanese paper, etc.); a fiber-based sheet (for example, cloth, nonwoven fabric, net, etc.); a porous film; Acrylic polymer, polyurethane resin, ethylene-vinyl acetate copolymer, epoxy resin); natural rubber; synthetic rubber. In addition, a monomer absorption layer may use these individually or in combination of 2 or more types.

  In the present invention, a polymer can be suitably used for forming the monomer absorption layer. That is, as the monomer absorption layer, a monomer absorption polymer layer made of a polymer can be suitably used, and a sheet having a polymer layer can be suitably used as the monomer absorptive sheet. Such a polymer is not particularly limited, but a polymer having at least one polymerizable monomer in an incompatible substance-containing polymerizable composition or a particle-containing photopolymerizable composition as a monomer component is preferable. For example, when a photopolymerizable acrylic polymer composition is used as the incompatible substance-containing polymerizable composition, the polymer that forms the monomer absorption layer is preferably an acrylic polymer. Since the structural units of the acrylic monomer that forms the monomer absorption layer and the acrylic monomer that is the polymerizable monomer of the photopolymerizable acrylic polymer composition that is an incompatible substance-containing polymerizable composition are the same, This is because a certain acrylic monomer is easily transferred.

  The monomer absorption layer may be composed of a polymer layer obtained by polymerizing a polymerizable composition having the same composition except that the incompatible substance is removed from the incompatible substance-containing polymerizable composition. . For example, the monomer absorption layer may be composed of a photopolymerization cured layer obtained by curing a photopolymerizable composition having the same composition except that particles are excluded from the particle-blended photopolymerizable composition.

  The volume of the monomer absorption layer may be constant or may be changed before and after absorption of the polymerizable monomer. For example, the monomer-absorbing layer is made of a polymer substance [for example, an incompatible substance from the above-described polymer (acrylic polymer, polyurethane resin, ethylene-vinyl acetate copolymer, epoxy resin) or an incompatible substance-containing polymerizable composition. A polymerizable composition having the same composition except for excluding (e.g., a photopolymerizable pressure-sensitive adhesive composition, a photopolymerizable composition having the same composition except for removing particles from the particle-containing photopolymerizable composition). In the case of a layer formed by polymerization, the volume of the polymer material layer that is the monomer absorption layer absorbs the polymerizable monomer from the incompatible material-containing polymerizable composition layer. (For example, by absorbing the polymerizable monomer from the particle-containing photopolymerizable composition layer). That is, the polymer substance forming the monomer absorption layer swells by absorbing the polymerizable monomer. Therefore, the monomer absorption layer may be a monomer swelling layer whose volume increases by absorbing the polymerizable monomer.

  When the monomer absorption layer is, for example, a layer of the polymer substance, the monomer absorption layer is formed on the predetermined surface of an appropriate support such as the following base material or the surface of the cover film that has been subjected to the release treatment. It is formed by applying the polymer substance with a coater. Moreover, the layer of the polymer substance as the monomer absorption layer provided on the support may be dried and / or cured (for example, cured by light) as necessary. In addition, when the polymer substance is applied on a predetermined surface of an appropriate support, various polymers such as acrylic rubber and a thickening additive are blended, or the polymerizable monomer is heated or irradiated with light. It may be adjusted to a viscosity suitable for coating by partially polymerizing.

  The thickness of the monomer absorption layer before absorbing the polymerizable monomer is not particularly limited, and can be selected, for example, from a range of 1 to 3000 μm (preferably 2 to 2000 μm, more preferably 5 to 1000 μm). Moreover, the monomer absorption layer may have any form of a single layer or a laminate.

(Base material)
Examples of the substrate used when the monomer-absorbing sheet is a monomer-absorbing sheet with a substrate include, for example, paper-based substrates such as paper; fiber-based substrates such as cloth, nonwoven fabric, and net; metal foils and metal plates Metal base materials such as: Plastic base materials such as plastic films and sheets; Rubber base materials such as rubber sheets; Foams such as foam sheets, and laminates thereof [for example, plastic base materials and other materials An appropriate thin leaf body such as a laminate with a base material or a laminate of plastic films (or sheets) can be used. As the substrate, a plastic substrate such as a plastic film or sheet can be suitably used. As a material in such a plastic film or sheet, for example, an α-olefin such as polyethylene (PE), polypropylene (PP), ethylene-propylene copolymer, ethylene-vinyl acetate copolymer (EVA) or the like is used as a monomer component. Olefin resins: Polyester resins such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polybutylene terephthalate (PBT); polyvinyl chloride (PVC); vinyl acetate resin; polyphenylene sulfide (PPS); polyamide (Nylon), amide resins such as wholly aromatic polyamide (aramid); polyimide resins; polyether ether ketone (PEEK). These materials can be used alone or in combination of two or more.

  In addition, when a plastic-type base material is used as a base material, you may control deformability, such as elongation rate, by extending | stretching process etc. Moreover, as a base material, when a monomer absorption layer is formed by hardening by an active energy ray, it is preferable to use what does not inhibit permeation | transmission of an active energy ray.

  The surface of the substrate is chemically or physically used to improve adhesion to the monomer-absorbing layer, such as conventional surface treatments such as corona treatment, chromic acid treatment, ozone exposure, flame exposure, high-voltage impact exposure, and ionizing radiation treatment. An oxidation treatment or the like by a general method may be applied, or a coating treatment or the like by an undercoat agent or a release agent may be applied.

  The thickness of the base material can be appropriately selected according to the strength, flexibility, purpose of use, and the like. For example, it is generally 1000 μm or less (for example, 1 to 1000 μm), preferably 1 to 500 μm, more preferably 3 to 300 μm. However, it is not limited to these. In addition, the base material may have any form of a single layer or a lamination.

[Cover film]
In the present invention, an incompatible substance-containing polymerizable composition layer is provided on at least one surface of the monomer absorption layer using the incompatible substance-containing polymerizable composition, and the incompatible substance unevenly distributed polymerizable composition layer is provided. Then, the immiscible substance unevenly distributed polymerizable composition layer is polymerized to form an incompatible substance unevenly distributed polymer layer. When the incompatible substance unevenly distributed polymerizable composition layer is polymerized, oxygen in the air, etc. Therefore, it is preferable to cover the surface of the incompatible substance unevenly polymerizable composition layer with a cover film. Moreover, when using a polymer member, you may peel and use a cover film, and you may use it without peeling a cover film. In addition, when using a polymer member, without removing a cover film, a cover film is used as a part of polymer member.

  For example, the surface uneven sheet made of the polymer member of the present invention is composed of a cover film having a peelability (cover film), a particle-containing photopolymerizable composition layer, and a monomer-absorbing sheet, and the monomer of the monomer-absorbing sheet. The particle-containing photopolymerizable composition layer is formed by irradiating a specific laminate having a form in which the surface of the particle-containing photopolymerizable composition layer provided on the absorption surface is protected by a peelable cover film. Can be produced by forming a particle unevenly distributed photopolymerization cured layer having an uneven structure on the surface on the cover film side. That is, the particle unevenly-distributed photopolymerized / cured layer is formed by irradiating a particle-containing photopolymerizable composition layer having a polymerizable monomer with an active energy ray such as an ultraviolet ray to photopolymerize the polymerizable monomer, thereby producing a particle-containing photopolymerizable composition. It is formed by curing a physical layer. Here, since the photopolymerization reaction is inhibited by oxygen in the air or the like, the formation of the particle unevenly distributed photopolymerization / cured layer is preferably performed under a condition in which almost no oxygen exists. Therefore, the surface of the particle-containing photopolymerizable composition layer is covered with a cover film to prevent contact with oxygen and to be subjected to photopolymerization. In addition, when using a surface uneven | corrugated sheet, a cover film is peeled off.

  The cover film is not particularly limited as long as it is a thin leaf body that does not easily transmit oxygen, but is preferably transparent when a photopolymerization reaction is used. As such a cover film, for example, a conventional release paper can be used. Specifically, as the cover film, for example, in addition to a substrate having a release treatment layer (release treatment layer) with a release treatment agent (release treatment agent) on at least one surface, a fluorine-based polymer (eg, polytetrafluoroethylene) Low adhesive substrates made of fluoroethylene, polychlorotrifluoroethylene, polyvinyl fluoride, polyvinylidene fluoride, tetrafluoroethylene / hexafluoropropylene copolymer, chlorofluoroethylene / vinylidene fluoride copolymer, etc. A low-adhesive substrate made of an adhesive polymer (for example, an olefin resin such as polyethylene or polypropylene) can be used. In the case of a low-adhesive substrate, both surfaces can be used as a release surface, while in a substrate having a release treatment layer, the release treatment layer surface is used as a release surface (release treatment surface). can do.

  As the cover film, for example, a cover film (a substrate having a release treatment layer) in which a release treatment layer is formed on at least one surface of the cover film substrate may be used. The material may be used as it is.

Such cover film substrates include polyester films (polyethylene terephthalate film, etc.), olefin resin films (polyethylene film, polypropylene film, etc.), polyvinyl chloride films, polyimide films, polyamide films (nylon film), rayon films. In addition to plastic base film (synthetic resin film) such as paper, paper (quality paper, Japanese paper, kraft paper, glassine paper, synthetic paper, topcoat paper, etc.), these can be laminated and co-extruded. Layered ones (2 to 3 layer composites) and the like can be mentioned. As the cover film substrate, a cover film substrate using a highly transparent plastic-based substrate film (particularly, a polyethylene terephthalate film) can be suitably used.
.

  The release treatment agent is not particularly limited, and for example, a silicone release treatment agent, a fluorine release treatment agent, a long-chain alkyl release treatment agent, or the like can be used. You may use a mold release processing agent individually or in combination of 2 or more types. The cover film that has been subjected to the release treatment with the release treatment agent is formed by, for example, a known formation method.

  The thickness of the cover film is not particularly limited, but can be selected from the range of, for example, 12 to 250 μm (preferably 20 to 200 μm) from the viewpoint of ease of handling and economy. In addition, the cover film may have any form of a single layer or a lamination.

[Polymer member (surface irregular sheet)]
The polymer member contains a non-compatible substance that is incompatible with the polymer obtained by polymerizing the polymerizable monomer and the polymerizable monomer on at least one surface of the monomer absorption layer capable of absorbing the polymerizable monomer. By providing an incompatible substance-containing polymerizable composition layer made of a compatible substance-containing polymerizable composition, the incompatible substance is moved within the incompatible substance-containing polymerizable composition layer, and the incompatible substance is transferred. Is obtained after obtaining an incompatible substance unevenly polymerizable composition layer in which is distributed unevenly on the surface of the layer or in the vicinity of the layer surface (an interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface). A non-compatible material in which a material-inhomogeneous polymerizable composition layer is polymerized and an incompatible material is distributed unevenly on the surface of the layer or in the vicinity of the layer surface (an interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface). Soluble substance unevenly distributed polymer layer is formed It is produced by obtaining a laminated structure of a sex material unevenly distributed polymer layer and the monomer-absorptive layer. In addition, on the monomer-absorbing surface of the monomer-absorbing sheet capable of absorbing the polymerizable monomer, it contains an incompatible substance containing a polymerizable monomer and a polymer-incompatible incompatible substance obtained by polymerizing the polymerizable monomer. An incompatible substance-containing polymerizable composition layer made of a polymerizable composition was laminated, and a laminate having a structure in which a cover film was laminated on the incompatible substance-containing polymerizable composition layer was prepared. The incompatible substance is distributed unevenly on the surface of the layer on the cover film side or in the vicinity of the layer surface by moving the incompatible substance in the incompatible substance-containing polymerizable composition layer. After obtaining the compatible composition layer, the incompatible substance uneven distribution polymerizable composition layer is polymerized, and the incompatible substance is at the interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface (the layer on the cover film side). Surface or near the surface of the layer) Forming a immiscible material unevenly distributed polymer layer are distributed, it may be made by a laminated structure of a immiscible material unevenly distributed polymer layer and the monomer-absorptive layer. In addition, the polymer member or the surface uneven sheet may have other layers (for example, an intermediate layer, an undercoat layer, etc.) as long as the effects of the present invention are not impaired.

  Polymerization of the immiscible substance unevenly distributed polymerizable composition layer is carried out as long as the incompatible substance unevenly distributed polymerizable composition layer is polymerized and cured to obtain an incompatible substance unevenly distributed polymer layer. There are no particular restrictions on energy, irradiation method or heating method, irradiation time or heating time, irradiation or heating start timing, irradiation or heating end timing, or the like.

  For example, the uneven surface sheet made of the polymer member of the present invention uses particles as an incompatible substance, and the specific laminate using a polymerizable monomer (a cover film having peelability, a particle-containing photopolymerizable composition layer). A specific laminate comprising a monomer-absorbing sheet and having a form in which the surface of the particle-containing photopolymerizable composition layer provided on the monomer-absorbing surface of the monomer-absorbing sheet is protected by a peelable cover film It may be produced by irradiating the body with light using an active energy ray such as ultraviolet rays.

  Such a surface uneven | corrugated sheet is manufactured by, for example, (i) producing a specific laminated body, and (ii) light-irradiating this specific laminated body after that.

  The specific laminate may be formed by, for example, applying a particle-containing photopolymerizable composition on a release-treated surface of a cover film on which at least one surface has been release-treated, thereby forming a particle-containing photopolymerizable composition layer. Is formed by adhering to a monomer-absorbing sheet having a monomer-absorbing layer so that the particle-containing photopolymerizable composition layer and the monomer-absorbing layer are in contact with each other.

  In the specific laminate, the light irradiation on the specific laminate is cured as long as the particle-containing photopolymerizable composition layer is cured, and a concavo-convex structure is formed on the cover film side surface of the photopolymerized cured layer after curing. There are no particular restrictions on the light source, irradiation energy, irradiation method, irradiation time, irradiation start time, irradiation end time, and the like. Therefore, light irradiation with respect to the specific laminate may be performed immediately after the specific laminate is manufactured, or may be performed after a certain period of time.

  Examples of the light irradiation include ultraviolet irradiation by a black light lamp, a chemical lamp, a high-pressure mercury lamp, a metal halide lamp, and the like. Examples of the heating include known heating methods (for example, a heating method using an electric heater, a heating method using an electromagnetic wave such as infrared rays, etc.).

  The absorption of the polymerizable monomer in the monomer absorption layer occurs at the time when the incompatible substance-containing polymerizable composition layer or the particle-containing photopolymerization composition layer is formed on the monomer absorption surface. Also, it occurs between the formation of the incompatible substance-containing polymerizable composition layer and the particle-containing photopolymerizable composition layer and polymerization (for example, from the production of a specific laminate to light irradiation). It may occur during polymerization of the incompatible substance-containing polymerizable composition layer or the particle-containing photopolymerizable composition layer (for example, while the particle-containing photopolymerizable composition layer is cured by light irradiation). It may be.

  In the incompatible substance uneven distribution polymer layer in the polymer member, the incompatible substance is distributed on the surface or in the vicinity of the surface (the interface opposite to the interface with the monomer absorption layer or in the vicinity of the interface). That is, the incompatible substance is 50% of the total thickness in the thickness direction from the surface (interface opposite to the interface with the monomer absorption layer) or the layer surface (interface opposite to the interface with the monomer absorption layer). % Region (preferably within 40% region, more preferably within 30% region). This is because when the incompatible substance-containing polymerizable composition layer forming the incompatible substance unevenly distributed polymer layer is provided in contact with the monomer absorption layer, at least one monomer in the incompatible substance-containing polymerizable composition layer It is presumed that the component is absorbed in the monomer absorption layer, and the incompatible substance moves through the incompatible substance-containing polymerizable composition layer.

  Accordingly, the longer the time from the contact of the incompatible substance-containing polymerizable composition layer with the monomer absorption layer to the completion of the polymerization, the better. In particular, when polymerization initiation can be easily controlled by light irradiation, it is preferable to perform light irradiation after elapse of 1 second or more after contact, preferably 5 seconds or more, more preferably 10 seconds or more (usually within 24 hours).

  Also, the thickness of the incompatible substance uneven distribution polymer layer where the incompatible substance is distributed (sometimes referred to as “incompatible substance uneven distribution portion”) (the incompatible substance relative to the total thickness in the thickness direction from the layer surface) The height in the thickness direction from the layer surface of the inner region where the distribution of the material is opposite; the opposite of the monomer absorption layer in the inner region where the incompatible substance is distributed, with respect to the total thickness in the thickness direction from the interface opposite to the monomer absorption layer The height in the thickness direction from the side interface) can be controlled by adjusting the amount of the incompatible substance included in the incompatible substance uneven distribution polymer layer.

  In the portion where the incompatible substance in the incompatible substance uneven distribution polymer layer is distributed, the incompatible substance and the polymer component of the incompatible substance uneven distribution polymer layer are mixed. For this reason, at the interface opposite to the interface with the monomer absorption layer of the immiscible substance uneven distribution polymer layer in which the incompatible substance is distributed or near the interface (surface or near the surface), the immiscible substance uneven distribution polymer layer The characteristics based on the polymer component, the characteristics inherent to the incompatible substance, and the characteristics based on the uneven distribution of the incompatible substance in the incompatible substance uneven distribution polymer layer can be exhibited.

  Examples of the characteristics based on the polymer component of the incompatible substance uneven distribution polymer layer include adhesiveness (pressure-sensitive adhesiveness) when a pressure-sensitive adhesive component is used as the polymer component. The inherent characteristics of an incompatible substance include the specific function when using an incompatible substance having a specific function (for example, expandability, contractility, absorption, divergence, conductivity, etc.). Can be mentioned. The characteristic based on uneven distribution of the incompatible substance in the incompatible substance uneven distribution polymer layer is, for example, adhesiveness by adjusting the content of the incompatible substance when the adhesive component is used as the polymer component ( Control of pressure-sensitive adhesiveness, design properties such as coloring, imparting surface irregularities when using particles as incompatible substances and properties based on the surface irregularities (for example, removability, antiblocking properties, antiglare properties, Design properties, light scattering properties, etc.).

  As a more specific example, for example, if an adhesive component is used as the polymer component of the incompatible substance uneven distribution polymer layer and particles are used as the incompatible substance, unevenness due to particles on the surface of the incompatible substance uneven distribution polymer layer is generated. It is possible to obtain a polymer member that has adhesiveness (tackiness) and peelability (antiblocking property) on the surface of the incompatible substance uneven distribution polymer layer. In the polymer member, the adhesiveness of the surface of the incompatible substance unevenly distributed polymer layer can be controlled by adjusting the amount of particles to be contained. Also, the tackiness can be made very weak or no tackiness can be produced.

  When the immiscible substance uneven distribution polymer layer in the polymer member contains particles, the size and shape of the irregularities on the surface of the incompatible substance uneven distribution polymer layer are, for example, the particle size of the particles, the thickness of the incompatible substance uneven distribution polymer layer, polymerization It is controlled by adjusting the method, the start time and end time of the polymerization. For example, the size and shape of the unevenness on the surface of the use surface of the surface uneven sheet are, for example, the particle size of the particles, the thickness of the photopolymerization cured layer, the method of light irradiation on the specific laminate, the start time and end time of light irradiation It is controlled by adjusting etc. In the case where the immiscible substance uneven distribution polymer layer includes particles, the particles in the layer (for example, particles included in the particle uneven distribution photopolymerization cured layer) may exist in a form in which the entire particles are included in the layer. Alternatively, the particle may be present in a form in which a part of the particle is exposed outside the layer (for example, a form in which the particle head appears outside the layer). That is, a part of the particles themselves may be exposed on the surface of the incompatible substance uneven distribution polymer layer of the polymer member or the use surface of the surface uneven sheet.

  The polymer member and the surface uneven sheet may have a form wound in a roll shape, or may have a form in which sheets are laminated. That is, the polymer member or the surface uneven sheet can have a form such as a tape or sheet.

  Therefore, according to the present invention, when a polymer member or a surface uneven sheet is produced, an incompatible substance can be used even if a particle-containing photopolymerizable composition is used as the incompatible substance-containing polymerizable composition or the particle-containing composition. Containing irregularities on the surface of a polymer member or application surface having an incompatible polymer uneven distribution layer without evaporating and removing volatile components (for example, solvents and organic compounds) contained in the contained polymerizable composition and particle compound composition A surface uneven sheet having a structure can be produced.

  In the present invention, the monomer absorption layer is not particularly limited as long as it can absorb at least one of the polymerizable monomers used in the incompatible substance-containing polymerizable composition. The rate is not particularly limited. In other words, as long as at least one of the polymerizable monomers used in the incompatible substance-containing polymerizable composition can be absorbed, an adhesive layer, a low elastic modulus such as a polymer layer, a plastic sheet, Any of those having a high elastic modulus such as a hard coat layer and a colored coating film layer can be used. For this reason, if particles are used as an incompatible substance, the elastic modulus of the sheet is not limited. For example, a material having a low elastic modulus such as a pressure-sensitive adhesive layer or a polymer layer, a plastic sheet, a hard coat layer, a colored coating, or the like. A concavo-convex structure can be imparted to the surface of a material having a high elastic modulus such as a film layer to produce a surface concavo-convex sheet.

  Furthermore, in the present invention, when a monomer-absorbing polymer layer made of a polymer is used as the monomer-absorbing layer, as long as at least one of the polymerizable monomers used in the incompatible substance-containing polymerizable composition can be absorbed. The gel fraction is not particularly limited. For this reason, in the monomer-absorbing polymer layer, the polymer member can be obtained even if the gel fraction is crosslinked to about 98% or is hardly crosslinked (gel fraction: 10% or less). For example, when using particles as an incompatible substance and further using a monomer-absorbing polymer layer as the monomer-absorbing layer or using a sheet having a polymer layer as the monomer-absorbing sheet, the gel fraction of the polymer layer is about 98% The polymer member and the surface uneven sheet can be produced even if they are even crosslinked or are hardly crosslinked (gel fraction: 10% or less). For this reason, by giving the polymer layer a high degree of cross-linking (for example, a gel fraction of 90% or more), the obtained surface uneven sheet gives heat resistance and solvent resistance to the polymer layer as the monomer absorption layer. can do. Furthermore, by giving the polymer layer a low degree of cross-linking (for example, a gel fraction of 10% or less), changing the state of surface unevenness in the obtained surface uneven sheet (for example, applying heat or pressure) Thus, the size of the surface irregularities can be reduced).

Furthermore, in the present invention, a polymer member can be obtained regardless of whether the monomer absorption layer is a hard layer or a soft layer. For example, when particles are used as the incompatible substance, a polymer member or a surface uneven sheet can be produced regardless of whether the monomer absorption layer is a hard layer or a soft layer. That is, the surface uneven sheet can be produced regardless of the mechanical properties (hardness) of the monomer absorption layer. For this reason, when a hard layer (for example, a layer having a 100% modulus of 100 N / cm ² or more) is used as the monomer absorption layer, the monomer absorption layer of the obtained surface uneven sheet can be used as a support (base material). There are cases where it is possible. Furthermore, when a soft layer (for example, a layer having a 100% modulus of 30 N / cm ² or less) is used as the monomer absorption layer, the monomer absorption layer of the obtained surface uneven sheet may be used as an adhesive layer.

  The polymer member of the present invention exerts various characteristics by adjusting the type and amount of the incompatible substance, the type and thickness of the polymer of the incompatible substance unevenly distributed polymer layer, etc. Can be used. For example, a surface uneven sheet made of a polymer member produced by using particles as an incompatible substance is used for applications that require design properties, uses that require light scattering properties, uses that require anti-blocking properties, etc. Can be suitably used.

  Hereinafter, the present invention will be described in more detail based on examples, but the present invention is not limited to these examples.

(Preparation Example 1 of Photopolymerizable Syrup)
A monomer mixture in which 90 parts by weight of 2-ethylhexyl acrylate and 10 parts by weight of acrylic acid are mixed as a monomer component, and a photopolymerization initiator (trade name “Irgacure 651” manufactured by Ciba Specialty Chemicals): 0 .1 part by weight was stirred until it became uniform in a four-necked separable flask equipped with a stirrer, thermometer, nitrogen gas inlet tube, and cooling tube, and then bubbled with nitrogen gas for 1 hour to dissolve oxygen. Was removed. Thereafter, the composition was polymerized by irradiating ultraviolet rays from the outside of the flask with a black light lamp. When the viscosity reached an appropriate level, the lamp was turned off and nitrogen blowing was stopped, and a composition in which a polymerization rate of 7% was partially polymerized (syrup) ) (Sometimes referred to as “photopolymerizable syrup (A)”).

(Preparation Example 2 of Photopolymerizable Syrup)
As a monomer component, a monomer mixture in which 2-ethylhexyl acrylate: 68 parts by weight, isobornyl acrylate: 22 parts by weight, and acrylic acid: 10 parts by weight were mixed with a photopolymerization initiator (trade name “Irgacure 651” Ciba Special Made by T Chemicals Co., Ltd.): 0.1 part by weight was stirred until it became uniform in a four-necked separable flask equipped with a stirrer, thermometer, nitrogen gas inlet tube, and cooling tube. Bubbling was performed for 1 hour to remove dissolved oxygen. Thereafter, the composition was polymerized by irradiating ultraviolet light from the outside of the flask with a black light lamp, and when the viscosity reached an appropriate level, the lamp was turned off and nitrogen blowing was stopped, and a composition in which a polymerization rate of 7% was partially polymerized (syrup ) (Sometimes referred to as “photopolymerizable syrup (B)”).

(Preparation Example 3 of Photopolymerizable Syrup)
As a monomer component, a monomer mixture in which 2-ethylhexyl acrylate: 45 parts by weight, isobornyl acrylate: 45 parts by weight, and acrylic acid: 10 parts by weight were mixed with a photopolymerization initiator (trade name “Irgacure 651” Ciba Special Tee Chemicals Co., Ltd.): 0.1 part by weight was stirred until uniform in a four-necked separable flask equipped with a stirrer, thermometer, nitrogen gas inlet tube, and cooling tube, and then bubbled with nitrogen gas For 1 hour to remove dissolved oxygen. Thereafter, the composition was polymerized by irradiating ultraviolet light from the outside of the flask with a black light lamp. When the viscosity reached an appropriate level, the lamp was turned off and nitrogen blowing was stopped, and a composition in which a polymerization rate of 7% was partially polymerized (syrup) ) (Sometimes referred to as “photopolymerizable syrup (C)”).

(Preparation Example 4 for Photopolymerizable Syrup)
As a monomer component, 2-ethylhexyl acrylate: 100 parts by weight, maleic acid-modified SEBS (trade name “FG-1901X” manufactured by Clayton Polymer Japan) as an incompatible material: 21 parts by weight, SEBS (trade name “G1726”) “Clayton Polymer Japan Co., Ltd.”: 12 parts by weight were dissolved, and further, as a photopolymerization initiator, trade name “Irgacure 651” (manufactured by Ciba Specialty Chemicals): 0.24 parts by weight, trade name “Irgacure 184” (Ciba Specialty Chemicals Co., Ltd.): 0.24 parts by weight are dissolved to prepare a viscous liquid (syrup) (sometimes referred to as “photopolymerizable syrup (D)”) that is cloudy in a uniform state. did.

(Preparation Example 5 of Photopolymerizable Syrup)
A monomer mixture in which 95 parts by weight of butyl acrylate and 5 parts by weight of acrylic acid are mixed as a monomer component and a photopolymerization initiator (trade name “Irgacure 651” manufactured by Ciba Specialty Chemicals): 0.35 weight Part and a photopolymerization initiator (trade name “Irgacure 184” manufactured by Ciba Specialty Chemicals): 0.35 part by weight of a four-neck equipped with a stirrer, thermometer, nitrogen gas introduction pipe, and cooling pipe After stirring in a separable flask until uniform, bubbling with nitrogen gas was performed for 1 hour to remove dissolved oxygen. Thereafter, the composition was polymerized by irradiating ultraviolet light from the outside of the flask with a black light lamp, and when the viscosity reached an appropriate level, the lamp was turned off and nitrogen blowing was stopped, and a composition in which a polymerization rate of 7% was partially polymerized (syrup ) (Sometimes referred to as “photopolymerizable syrup (E)”).

(Preparation Example 1 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, crosslinked acrylic particles having an average particle size of 5 μm (trade name “MX-500” manufactured by Soken Chemical Co., Ltd.): 30 parts by weight, 1,6-hexanediol diacrylate: 0. 1 part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (A)”).

(Preparation Example 2 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, crosslinked acrylic particles having an average particle diameter of 20 μm (trade name “MX-2000”, manufactured by Soken Chemical Co., Ltd.): 30 parts by weight, 1,6-hexanediol diacrylate: 0. 1 part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (B)”).

(Preparation Example 3 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, crosslinked acrylic particles having an average particle size of 5 μm (trade name “MX-500” manufactured by Soken Chemical Co., Ltd.): 30 parts by weight, 1,6-hexanediol diacrylate: 1 part by weight Parts were uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (C)”).

(Preparation Example 4 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (B): 100 parts by weight, cross-linked acrylic particles having an average particle size of 5 μm (trade name “MX-500”, manufactured by Soken Chemical Co., Ltd.): 30 parts by weight are uniformly mixed to obtain a photopolymerizability of particles. A composition (sometimes referred to as “particle-containing photopolymerizable composition (D)”) was prepared.

(Preparation example 5 of particle-containing photopolymerizable composition)
Photopolymerizable syrup (B): 100 parts by weight, crosslinked acrylic particles having an average particle size of 5 μm (trade name “MX-500”, manufactured by Soken Chemical Co., Ltd.): 30 parts by weight, 1,6-hexanediol diacrylate: 0. 1 part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (E)”).

(Preparation Example 6 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (B): 100 parts by weight, crosslinked acrylic particles having an average particle size of 5 μm (trade name “MX-500” manufactured by Soken Chemical Co., Ltd.): 30 parts by weight, 1,6-hexanediol diacrylate: 1 part by weight Parts were uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (F)”).

(Preparation Example 7 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (C): 100 parts by weight, crosslinked acrylic particles having an average particle size of 5 μm (trade name “MX-500” manufactured by Soken Chemical Co., Ltd.): 30 parts by weight, 1,6-hexanediol diacrylate: 1 part by weight Parts were uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (G)”).

(Preparation Example 8 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, cross-linked acrylic particles having an average particle size of 5 μm (trade name “MX-500”, manufactured by Soken Chemical Co., Ltd.): 30 parts by weight are uniformly mixed to obtain a photopolymerizability of particles. A composition (sometimes referred to as “particle-containing photopolymerizable composition (H)”) was prepared.

(Preparation Example 9 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (C): 100 parts by weight of crosslinked acrylic particles having an average particle size of 5 μm (trade name “MX-500”, manufactured by Soken Chemical Co., Ltd.): 30 parts by weight are uniformly mixed to produce a photopolymerizability of particles. A composition (sometimes referred to as “particle-containing photopolymerizable composition (I)”) was prepared.

(Preparation Example 10 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (C): 100 parts by weight, crosslinked acrylic particles having an average particle size of 5 μm (trade name “MX-500”, manufactured by Soken Chemical Co., Ltd.): 30 parts by weight, 1,6-hexanediol diacrylate: 0. 1 part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (J)”).

(Preparation Example 11 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, silicone powder having an average particle size of 5 μm (trade name “KNP-600” manufactured by Shin-Etsu Silicone): 10 parts by weight, 1,6-hexanediol diacrylate: 0.1 Part by weight was mixed uniformly to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (K)”).

(Preparation Example 12 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, silicone powder having an average particle size of 2 μm (trade name “KNP-590” manufactured by Shin-Etsu Silicone): 10 parts by weight, 1,6-hexanediol diacrylate: 0.1 Part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (L)”).

(Preparation Example 13 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, hydrophobic femed silica (trade name “Aerosil R8200” manufactured by Nippon Aerosil Co., Ltd.): 5 parts by weight, 1,6-hexanediol diacrylate: 0.1 parts by weight The mixture was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (M)”).

(Preparation Example 14 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, micron-sized finely divided silica (trade name “Silo Hovic 4004” manufactured by Fuji Silysia Chemical Ltd.): 5 parts by weight, 1,6-hexanediol diacrylate: 0. 1 part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (N)”).

(Preparation Example 15 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, crosslinked acrylic particles having an average particle size of 5 μm (crosslinked acrylic monodispersed particles) (trade name “MX-500” manufactured by Soken Chemical Co., Ltd.): 1 part by weight, 1,6- Hexanediol diacrylate: 0.1 part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (O)”).

(Preparation Example 16 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight, crosslinked acrylic particles (crosslinked acrylic monodispersed particles) having an average particle size of 5 μm (trade name “MX-500” manufactured by Soken Chemical Co., Ltd.): 5 parts by weight, 1,6- Hexanediol diacrylate: 0.1 part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (P)”).

(Preparation Example 17 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (A): 100 parts by weight of crosslinked acrylic particles (crosslinked acrylic monodispersed particles) having an average particle diameter of 5 μm (trade name “MX-500” manufactured by Soken Chemical Co., Ltd.): 10 parts by weight, 1,6- Hexanediol diacrylate: 0.1 part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (Q)”).

(Preparation Example 18 of Particle-Containing Photopolymerizable Composition)
Photopolymerizable syrup (E): 100 parts by weight of crosslinked acrylic particles (crosslinked acrylic monodispersed particles) having an average particle size of 5 μm (trade name “MX-500” manufactured by Soken Chemical Co., Ltd.): 10 parts by weight, 1,6- Hexanediol diacrylate: 0.1 part by weight was uniformly mixed to prepare a particle-containing photopolymerizable composition (sometimes referred to as “particle-containing photopolymerizable composition (R)”).

(Preparation Example 1 of a photopolymerizable composition containing an incompatible substance)
Photopolymerizable syrup (D): 100 parts by weight, acrylic acid: 8.3 parts by weight, 1,6-hexanediol diacrylate: 0.08 parts by weight, and mixed with an incompatible substance. A composition (sometimes referred to as “incompatible substance-containing photopolymerizable composition (A)”) was prepared.

(Preparation Example of Particle-Containing Room Temperature Polymerizable Composition)
A small amount of the photopolymerizable syrup (A) was dropped into excess hexane cooled with iced saline to precipitate the acrylic polymer. The precipitated acrylic polymer was taken out, further washed several times with hexane and vacuum dried. The obtained acrylic polymer was dissolved in a monomer solution having a ratio of 2-ethylhexyl acrylate / acrylic acid of 9/1 so that the polymer concentration (solid content concentration) was 7%, and a syrup containing no photopolymerization initiator was obtained. Obtained.
To 100 parts by weight of the syrup, crosslinked acrylic particles having a mean particle size of 5 μm (crosslinked acrylic monodispersed particles) (trade name “MX-500” manufactured by Soken Chemical Co., Ltd.): 10 parts by weight, dipentaerythritol hexaacrylate: 1 part by weight In addition, the mixture was stirred until uniform, and cumene hydroperoxide (trade name “Park Mill H-80” manufactured by Nippon Oil & Fats Co., Ltd.) was further added, and the mixture was stirred until uniform. Next, a vanadyl acetylacetonate solution (a solution in which vanadyl acetylacetonate is dissolved in acrylic acid so as to have a concentration of 2%): 2 parts by weight (solid content concentration) is added little by little while stirring, A polymerizable composition (sometimes referred to as “particle-containing room temperature polymerizable composition (A)”) was prepared.

(Cover film)
As the cover film, a biaxially stretched polyethylene terephthalate film (trade name “MRN38” manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.) having a thickness of 38 μm and one side of which was subjected to silicone-based release treatment was used.

(Production Example 1 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (A): A photopolymerizable syrup composition (“photopolymerizable syrup composition (A)”) obtained by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate: 0.1 part by weight May be applied to one surface of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after curing is 300 μm, thereby forming a photopolymerizable syrup composition layer. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and the layer is irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes using a black light to cure the layer. By forming the monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer absorption layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (A)”) is produced. did.

(Production Example 2 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (B): A photopolymerizable syrup composition (“photopolymerizable syrup composition (B)”) obtained by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate: 0.1 part by weight Was applied to one surface of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after curing was 75 μm, thereby forming a photopolymerizable syrup composition layer. Then, the cover film is bonded to the layer so that the release-treated surface is in contact with the layer, and irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) using a black light for 3 minutes to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (B)”) is produced. did.

(Production Example 3 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (C): 100 parts by weight of 1,6-hexanediol diacrylate: 1 part by weight of a photopolymerizable syrup composition (when referred to as “photopolymerizable syrup composition (C)”) Is applied to one surface of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after curing is 75 μm, thereby forming a photopolymerizable syrup composition layer. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and the layer is irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (C)”) is produced. did.

(Production Example 4 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (B): A photopolymerizable syrup composition in which 100 parts by weight of 1,6-hexanediol diacrylate and 1 part by weight are uniformly mixed (when referred to as “photopolymerizable syrup composition (D)”) Is applied to one surface of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after curing is 75 μm, thereby forming a photopolymerizable syrup composition layer. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and the layer is irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (D)”) is produced. did.

(Production Example 5 of Monomer Absorbent Sheet with Base Material)
The photopolymerizable syrup (C) was applied to one surface of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after curing was 75 μm, thereby forming a photopolymerizable syrup layer. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and the layer is irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (E)”) is produced. did.

(Production Example 6 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup composition (A): Biaxially stretched polyethylene terephthalate film having a thickness of 38 μm, obtained by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate: 0.1 part by weight The photopolymerizable syrup composition layer was formed on one surface of the coating so that the thickness after curing was 60 μm. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and the layer is irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (F)”) is produced. did.

(Production Example 7 of Monomer Absorbent Sheet with Substrate)
The photopolymerizable syrup (B) was applied to one surface of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after curing was 70 μm, thereby forming a photopolymerizable syrup layer. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and the layer is irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (G)”) is produced. did.

(Production Example 8 of Monomer Absorbent Sheet with Substrate)
The photopolymerizable syrup (A) was applied to one surface of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after curing was 56 μm to form a photopolymerizable syrup layer. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and the layer is irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (H)”) is prepared. did.

(Production Example 9 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (B): A photopolymerizable syrup composition obtained by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate: 0.1 part by weight with a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm. On one surface, it was applied so that the thickness after curing was 70 μm, and a photopolymerizable syrup composition layer was formed. Then, the cover film is bonded to the layer so that the release-treated surface is in contact with the layer, and irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) using a black light for 3 minutes to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (I)”) is produced. did.

(Production Example 10 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (C): A photopolymerizable syrup composition obtained by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate: 1 part by weight with one side of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm. The surface was coated so that the thickness after curing was 73 μm to form a photopolymerizable syrup composition layer. Then, the cover film is bonded to the layer so that the release-treated surface is in contact with the layer, and irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) using a black light for 3 minutes to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (J)”) is produced. did.

(Production Example 11 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (B): A photopolymerizable syrup composition in which 100 parts by weight of 1,6-hexanediol diacrylate and 1 part by weight are uniformly mixed (referred to as “photopolymerizable syrup composition (D)”) Is applied to one surface of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after curing is 65 μm, thereby forming a photopolymerizable syrup composition layer. Then, the cover film is bonded to the layer so that the release-treated surface is in contact with the layer, and irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) using a black light for 3 minutes to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer absorption layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (K)”) is produced. did.

(Production Example 12 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (C): 100 parts by weight is applied to one surface of a biaxially stretched polyethylene terephthalate film with a thickness of 38 μm so that the thickness after curing is 71 μm to form a photopolymerizable syrup layer. I let you. Then, the cover film is bonded to the layer so that the release-treated surface is in contact with the layer, and irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) using a black light for 3 minutes to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (L)”) is produced. did.

(Production Example 13 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (A): A photopolymerizable syrup composition obtained by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate: 0.1 part by weight with a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm. On one surface, it was applied so that the thickness after curing was 58 μm, and a photopolymerizable syrup composition layer was formed. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and the layer is irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer absorption layer is protected by the above cover film (sometimes referred to as “monomer-absorbing sheet with substrate (M)”) is produced. did.

(Preparation Example 14 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (C): A photopolymerizable syrup composition obtained by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate: 0.1 part by weight with a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm. The photopolymerizable syrup composition layer was formed on one surface so that the thickness after curing was 75 μm. Then, the cover film is bonded to the layer so that the release-treated surface is in contact with the layer, and irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) using a black light for 3 minutes to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (N)”) is produced. did.

(Production Example 15 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (A): One part of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm was prepared by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate with 1 part by weight. The surface was coated so that the thickness after curing was 55 μm to form a photopolymerizable syrup composition layer. Then, the cover film is bonded to the layer so that the release-treated surface is in contact with the layer, and irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) using a black light for 3 minutes to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (O)”) is produced. did.

(Production Example 16 of Monomer Absorbent Sheet with Substrate)
The photopolymerizable syrup (B) was applied to one surface of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after curing was 70 μm, thereby forming a photopolymerizable syrup layer. Then, the cover film is bonded to the layer so that the release-treated surface is in contact with the layer, and irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) using a black light for 3 minutes to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (P)”) is prepared. did.

(Preparation Example 17 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (A): A photopolymerizable syrup composition obtained by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate: 0.1 part by weight with a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm. The photopolymerizable syrup layer was formed on one surface so that the thickness after curing was 30 μm. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and the layer is irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (Q)”) is produced. did.

(Production Example 18 of Monomer Absorbent Sheet with Substrate)
Photopolymerizable syrup (A): A photopolymerizable syrup composition obtained by uniformly mixing 100 parts by weight of 1,6-hexanediol diacrylate: 0.1 part by weight of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm. The photopolymerizable syrup layer was formed on one surface so that the thickness after curing was 85 μm. Then, the cover film is bonded to the layer so that the release-treated surface is in contact with the layer, and ultraviolet light (illuminance: 5 mW / cm ² ) is irradiated for 5 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (R)”) is produced. did.

(Preparation Example 19 of Monomer Absorbent Sheet with Substrate)
As a monomer component, isostearyl acrylate (trade name “S-1800A” manufactured by Shin-Nakamura Chemical Co., Ltd.): 100 parts by weight, as an incompatible substance, maleic acid-modified SEBS (trade name “FG-1901X” Kraton Polymer Japan Co., Ltd.) 21 parts by weight, SEBS (trade name “G1726” manufactured by Clayton Polymer Japan): 12 parts by weight, and as a photopolymerization initiator, trade name “Irgacure 651” (manufactured by Ciba Specialty Chemicals): 0 .24 parts by weight and a photopolymerization initiator, trade name “Irgacure 184” (manufactured by Ciba Specialty Chemicals): 0.24 parts by weight was mixed and mixed, and a viscous liquid that became cloudy in a uniform state (Syrup) was obtained.
This syrup: 100 parts by weight of 1,6-hexanediol diacrylate: 0.08 parts by weight of a photopolymerizable syrup composition obtained by uniformly mixing one side of a biaxially stretched polyethylene terephthalate film with a thickness of 38 μm On this surface, it was applied so that the thickness after curing was 80 μm, and a photopolymerizable syrup layer was formed. Then, the cover film is bonded to the layer in such a form that the release-treated surface is in contact, and ultraviolet light (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes using a black light to cure the layer. By forming a monomer absorption layer, a monomer-absorbing sheet with a substrate whose surface of the monomer-absorbing layer is protected by the cover film (sometimes referred to as “monomer-absorbing sheet with substrate (S)”) is produced. did.

(Production Example 20 of Monomer Absorbent Sheet with Substrate)
As a monomer component, 2-ethylhexyl acrylate: 100 parts by weight, as an incompatible substance, maleic acid-modified SEBS (trade name “FG-1901X” manufactured by Kraton Polymer Japan): 21 parts by weight, SEBS (trade name “G1726”) Clayton Polymer Japan Co., Ltd.): 12 parts by weight, and further, as a photopolymerization initiator, trade name “Irgacure 651” (manufactured by Ciba Specialty Chemicals): 0.24 parts by weight and a photopolymerization initiator, trade name “ "Irgacure 184" (manufactured by Ciba Specialty Chemicals): 0.24 parts by weight were blended and mixed to obtain a viscous liquid (syrup) that became cloudy in a uniform state.
A photopolymerizable syrup composition obtained by uniformly mixing syrup: 100 parts by weight with acrylic acid: 8.3 parts by weight and 1,6-hexanediol diacrylate: 0.08 parts by weight has a thickness of 38 μm. The biaxially stretched polyethylene terephthalate film was coated on one surface so that the thickness after curing was 60 μm, thereby forming a photopolymerizable syrup layer. And the said cover film is bonded together in the form which the surface by which the mold release process was touched on this layer, and ultraviolet-ray (illuminance: 5 mW / cm < ² >) was irradiated for 8 minutes using black light, this photopolymerizable syrup layer Is cured to form a monomer-absorbing layer, whereby the surface of the monomer-absorbing layer is protected with the above-mentioned cover film, and is referred to as a monomer-absorbing sheet with a substrate (“monomer-absorbing sheet with substrate (T)”). A).

(Production Example 21 of Monomer Absorbent Sheet with Substrate)
An acrylic adhesive was applied to one side of a 38 μm thick biaxially stretched polyethylene terephthalate film to a thickness of 30 μm, and a 100 μm thick ether-based urethane elastomer sheet (trade name “SEIDAM 70A”) The monomer-absorbing sheet with substrate (sometimes referred to as “monomer-absorbing sheet with substrate (U)”) was produced.

(Production Example 22 of Monomer Absorbent Sheet with Substrate)
N-butyl acrylate: 95 parts by weight, acrylic acid: 5 parts by weight, benzoyl peroxide as a peroxide (trade name “Nyper BW” manufactured by NOF Corporation): 0.2 parts by weight (solid content), toluene: 67 A composition consisting of parts by weight was put into a polymerization vessel, and nitrogen was injected into the vessel for 1 hour while stirring the vessel to remove oxygen from the system. Subsequently, the polymerization reaction was carried out for 6 hours while nitrogen was injected and the temperature of the composition was controlled to be constant at 62 ° C. The temperature was controlled by heating and cooling the container and cooling by adding new toluene into the container little by little.
After 6 hours, additional toluene was added so that the total amount with toluene used for temperature control would be 82.7 parts by weight, and then the temperature of the composition was increased to 90 ° C., and another 4 hours. A polymerization reaction was performed.
After completion of the polymerization reaction, while cooling the polymerization vessel, 83.3 parts by weight of toluene was charged into the vessel, the composition was cooled to room temperature (23 ° C.), and the weight average molecular weight was about 500,000. An acrylic polymer solution was obtained.
This acrylic polymer solution: 100 parts by weight (solid content), cross-linking agent (trade name “Coronate L” manufactured by Nippon Polyurethane Industry Co., Ltd.): 3 parts by weight (solid content) and cross-linking agent (trade name “Super Becamine”) Dainippon Ink Chemical Industries, Ltd .: 1.5 parts by weight (solid content) was added and mixed until uniform to obtain an acrylic composition.
This acrylic composition was applied to one side of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm so that the thickness after forming the acrylic polymer layer was 25 μm, and then 130 ° C. using a hot air dryer. For 5 minutes to form an acrylic polymer layer. And the said cover film is bonded together in the form which the surface by which the mold release process was touched on this acrylic polymer layer, and a monomer absorption layer surface is the said cover film by leaving still in a 40 degreeC temperature atmosphere for 5 days. The substrate-absorbed monomer-absorbing sheet (sometimes referred to as “monomer-absorbing sheet with substrate (V))” was prepared.

(Preparation Example 23 of Monomer Absorbent Sheet with Base Material)
In a reaction vessel, butyl acrylate: 88 parts by weight, acrylic acid: 5 parts by weight, cyclohexyl methacrylate: 5 parts by weight, phosphate ester derivative monomer (trade name “PAM200” manufactured by Rhodia Nikka Co., Ltd.): 2 parts by weight, and 3 -Methacryloyloxypropyl-trimethoxysilane (trade name “KBM-503” manufactured by Shin-Etsu Chemical Co., Ltd.): 0.03 part by weight was added and mixed to prepare a monomer mixture. To the monomer mixture: 627 g, a reactive emulsifier (trade name “AQUALON HS-10”, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.): 13 g and ion-exchanged water: 360 g are added, and a homogenizer (manufactured by Primix) is used for 5 minutes. A monomer pre-emulsion was prepared by stirring at 5000 (1 / min) and forcibly emulsifying.
Next, 200 g of the prepared monomer preemulsion and 330 g of ion exchange water: 330 g were charged into a reaction vessel equipped with a cooling tube, a nitrogen introduction tube, a thermometer and a stirrer, and then the reaction vessel was purged with nitrogen, 0.2 g of 2-azobis [N- (2-carboxyethyl) -2-methylpropionamidine] hydrate (trade name “VA-057” manufactured by Wako Pure Chemical Industries, Ltd.) was added and the mixture was added at 60 ° C. for 1 hour. Polymerized. Subsequently, 800 g of the prepared monomer pre-emulsion was dropped into the reaction vessel over 3 hours, and polymerization was further performed for 3 hours after the completion of dropping. Thereafter, polymerization was performed at 60 ° C. for 3 hours while purging with nitrogen to obtain a water-dispersed acrylic polymer emulsion solution having a solid content of 48%. Subsequently, this was cooled to room temperature (23 degreeC), 10% ammonia water was added, and pH was adjusted to 8, and the water-dispersed acrylic polymer composition was obtained.
This water-dispersed acrylic polymer composition was applied to one side of a 38 μm thick biaxially stretched polyethylene terephthalate film so that the thickness after the acrylic polymer layer was formed was 27 μm, and a hot air dryer was used. The acrylic polymer layer was formed by drying at 130 ° C. for 5 minutes. And by adhering the cover film on the acrylic polymer layer in a form in which the release-treated surface is in contact, the monomer-absorbing sheet with a base material whose surface of the monomer absorbing layer is protected by the cover film ( A “base-attached monomer-absorbing sheet (X)” may be prepared).

(Example 1)
A particle-containing photopolymerizable composition layer is formed by applying the particle-containing photopolymerizable composition (A) on the surface of the cover film that has been subjected to a release treatment so that the thickness after curing is 100 μm. Then, the monomer-absorbing sheet with the substrate (A) from which the monomer-absorbing layer has been exposed by peeling off the cover film is bonded to the monomer-absorbing layer in a form where the monomer-absorbing layer and the particle-containing photopolymerizable composition layer are in contact with each other. Formed.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the cover film surface side using a black light lamp as a light source. The material layer was photocured to form a particle-blended photopolymerization cured layer, thereby producing a surface uneven sheet.

(Example 2)
What applied the particle-blended photopolymerizable composition (B) to the surface of the cover film that has been subjected to the mold release treatment so that the thickness after curing is 50 μm to form a particle-blended photopolymerizable composition layer. Then, the monomer-absorbing sheet with the substrate (A) from which the monomer-absorbing layer has been exposed by peeling off the cover film is bonded to the monomer-absorbing layer in a form where the monomer-absorbing layer and the particle-containing photopolymerizable composition layer are in contact with each other. Formed.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the cover film surface side using a black light lamp as a light source. The material layer was photocured to form a particle-blended photopolymerization cured layer, thereby producing a surface uneven sheet.

(Example 3)
What applied the particle compounded photopolymerizable composition (A) on the surface of the cover film that has been subjected to the release treatment so that the thickness after curing is 60 μm to form a particle compounded photopolymerizable composition layer. Then, the monomer-absorbing sheet with the base material (B) having the monomer-absorbing layer exposed by peeling off the cover film is bonded in such a manner that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer are in contact with each other. Formed.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the cover film surface side using a black light lamp as a light source. The material layer was photocured to form a particle-blended photopolymerization cured layer, thereby producing a surface uneven sheet.

Example 4
What applied the particle-blended photopolymerizable composition (C) to the surface of the cover film that has been subjected to the mold release treatment so that the thickness after curing is 60 μm to form a particle-blended photopolymerizable composition layer. Then, the monomer-absorbing sheet (C) with a base material from which the monomer-absorbing layer is exposed by peeling off the cover film is bonded in a form in which the monomer-absorbing layer and the particle-containing photopolymerizable composition layer are in contact with each other. Formed.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the cover film surface side using a black light lamp as a light source. The material layer was photocured to form a particle-blended photopolymerization cured layer, thereby producing a surface uneven sheet.

(Example 5)
A particle-containing photopolymerizable composition layer is formed by applying the particle-containing photopolymerizable composition (D) to the release film of the cover film so that the thickness after curing is 60 μm. Then, the monomer-absorbing sheet with substrate (D) from which the monomer-absorbing layer is exposed by peeling off the cover film is bonded in such a manner that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer are in contact with each other. Formed.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the cover film surface side using a black light lamp as a light source. The material layer was photocured to form a particle-blended photopolymerization cured layer, thereby producing a surface uneven sheet.

(Example 6)
What coated the particle-blended photopolymerizable composition (E) on the surface of the cover film subjected to the release treatment so that the thickness after curing was 60 μm to form a particle-blended photopolymerizable composition layer. Then, the monomer-absorbing sheet with substrate (E) from which the monomer-absorbing layer is exposed by peeling off the cover film is bonded in such a manner that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer are in contact with each other. Formed.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the cover film surface side using a black light lamp as a light source. The material layer was photocured to form a particle-blended photopolymerization cured layer, thereby producing a surface uneven sheet.

(Example 7)
A particle-containing photopolymerizable composition layer is formed by applying the particle-containing photopolymerizable composition (F) to the surface of the cover film that has been subjected to a release treatment so that the thickness after curing is 60 μm. The laminate is bonded to the monomer-absorbing sheet with the base material (F) having the monomer-absorbing layer exposed by peeling the cover film so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer are in contact with each other. Formed.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the cover film surface side using a black light lamp as a light source. The material layer was photocured to form a particle-blended photopolymerization cured layer, thereby producing a surface uneven sheet.

(Example 8)
A particle-containing photopolymerizable composition layer is formed by applying the particle-containing photopolymerizable composition (G) to the release film of the cover film so that the thickness after curing is 60 μm. Then, the monomer-absorbing sheet (G) with a base material from which the monomer-absorbing layer is exposed by peeling off the cover film is bonded to the monomer-absorbing layer and the particle-containing photopolymerizable composition layer so that the laminate is bonded. Formed.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the cover film surface side using a black light lamp as a light source. The material layer was photocured to form a particle-blended photopolymerization cured layer, thereby producing a surface uneven sheet.

Example 9
The particle-containing photopolymerizable composition (H) is applied to the release-treated surface of the cover film to form a particle-containing photopolymerizable composition layer, and the cover film is peeled off to expose the monomer absorption layer. A laminated body was formed by pasting the monomer-absorbing sheet with substrate (H) so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the side of the cover film using a black light lamp as a light source. The physical layer was photocured to form a particle-blended photopolymerization / cured layer (particle-blended layer, fine-particle-blended layer) to produce a sheet having a laminated structure of a monomer absorption layer and a particle-blended photopolymerized / cured layer.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 110 μm.

(Example 10)
The particle-containing photopolymerizable composition (A) is applied to the release-treated surface of the cover film to form a particle-containing photopolymerizable composition layer, and the cover film is peeled off to expose the monomer absorption layer. A laminated body was formed by laminating the monomer-absorbing sheet with substrate (I) with the substrate so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the side of the cover film using a black light lamp as a light source. The physical layer was photocured to form a particle-blended photopolymerization / cured layer (particle-blended layer, fine-particle-blended layer) to produce a sheet having a laminated structure of a monomer absorption layer and a particle-blended photopolymerized / cured layer.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 125 μm.

(Example 11)
The particle-containing photopolymerizable composition (C) is applied to the release-treated surface of the cover film to form a particle-containing photopolymerizable composition layer, and the cover film is peeled off to expose the monomer absorption layer. A laminated body was formed by laminating the monomer-absorbing sheet with base material (J) so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the side of the cover film using a black light lamp as a light source. The physical layer was photocured to form a particle-blended photopolymerization / cured layer (particle-blended layer, fine-particle-blended layer) to produce a sheet having a laminated structure of a monomer absorption layer and a particle-blended photopolymerized / cured layer.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 130 μm.

Example 12
The particle-containing photopolymerizable composition (D) is applied to the surface of the cover film that has been subjected to the release treatment to form a particle-containing photopolymerizable composition layer, and the cover film is peeled off to expose the monomer absorption layer. A laminated body was formed by laminating the monomer-absorbing sheet with substrate (K) so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the side of the cover film using a black light lamp as a light source. The physical layer was photocured to form a particle-blended photopolymerization / cured layer (particle-blended layer, fine-particle-blended layer) to produce a sheet having a laminated structure of a monomer absorption layer and a particle-blended photopolymerized / cured layer.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 125 μm.

(Example 13)
The particle-containing photopolymerizable composition (E) is applied to the release-treated surface of the cover film to form a particle-containing photopolymerizable composition layer, and the cover film is peeled off to expose the monomer absorption layer. A laminated body was formed by pasting the monomer-absorbing sheet with base material (L) so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the side of the cover film using a black light lamp as a light source. The physical layer was photocured to form a particle-blended photopolymerization / cured layer (particle-blended layer, fine-particle-blended layer) to produce a sheet having a laminated structure of a monomer absorption layer and a particle-blended photopolymerized / cured layer.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 130 μm.

(Example 14)
The particle-containing photopolymerizable composition (F) is applied to the release-treated surface of the cover film to form a particle-containing photopolymerizable composition layer. The cover film is peeled off to expose the monomer absorption layer. A laminated body was formed by laminating the monomer-absorbing sheet with base material (M), in which the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the side of the cover film using a black light lamp as a light source. The physical layer was photocured to form a particle-blended photopolymerization / cured layer (particle-blended layer, fine-particle-blended layer) to produce a sheet having a laminated structure of a monomer absorption layer and a particle-blended photopolymerized / cured layer.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 118 μm.

(Example 15)
The particle-containing photopolymerizable composition (I) is applied to the release-treated surface of the cover film to form a particle-containing photopolymerizable composition layer, and the cover film is peeled off to expose the monomer absorption layer. A laminated body was formed by pasting the monomer-absorbing sheet with substrate (N) so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the side of the cover film using a black light lamp as a light source. The physical layer was photocured to form a particle-blended photopolymerization / cured layer (particle-blended layer, fine-particle-blended layer) to produce a sheet having a laminated structure of a monomer absorption layer and a particle-blended photopolymerized / cured layer.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 130 μm.

(Example 16)
The particle-containing photopolymerizable composition (J) is applied to the release-treated surface of the cover film to form a particle-containing photopolymerizable composition layer, and the cover film is peeled off to expose the monomer absorption layer. A laminated body was formed by pasting the monomer-absorbing sheet with base material (O) so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the side of the cover film using a black light lamp as a light source. The physical layer was photocured to form a particle-blended photopolymerization / cured layer (particle-blended layer, fine-particle-blended layer) to produce a sheet having a laminated structure of a monomer absorption layer and a particle-blended photopolymerized / cured layer.
The thickness (total thickness) of the laminated structure of the monomer-absorbing layer and the particle-containing photopolymerization / curing layer was 115 μm.

(Example 17)
The particle-containing photopolymerizable composition (G) is applied to the release-treated surface of the cover film to form a particle-containing photopolymerizable composition layer, and the cover film is peeled off to expose the monomer absorption layer. A laminated body was formed by laminating the monomer-absorbing sheet with substrate (P) so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, 1 minute after the formation of the laminate, the laminate was irradiated with ultraviolet rays (illuminance: 5 mW / cm ² ) for 3 minutes from the side of the cover film using a black light lamp as a light source. The physical layer was photocured to form a particle-blended photopolymerization / cured layer (particle-blended layer, fine-particle-blended layer) to produce a sheet having a laminated structure of a monomer absorption layer and a particle-blended photopolymerized / cured layer.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 130 μm.

(Example 18)
The particle-containing photopolymerizable composition (K) is coated on the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (Q) having the monomer-absorbing layer exposed by peeling off the cover film. After forming a physical layer, a cover film was bonded onto the particle-containing photopolymerizable composition layer to obtain a laminate.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 68 μm.

(Example 19)
The particle-containing photopolymerizable composition (L) is coated on the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (Q) from which the monomer-absorbing layer is exposed by peeling off the cover film. After forming a physical layer, a cover film was bonded onto the particle-containing photopolymerizable composition layer to obtain a laminate.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 65 μm.

(Example 20)
The particle-containing photopolymerizable composition (M) is coated on the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (Q) having the monomer-absorbing layer exposed by peeling off the cover film. After forming a physical layer, a cover film was bonded onto the particle-containing photopolymerizable composition layer to obtain a laminate.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 70 μm.

(Example 21)
The particle-containing photopolymerizable composition (N) is applied on the monomer-absorbing layer (Q) of the substrate-coated monomer-absorbing sheet (Q) from which the monomer-absorbing layer is exposed by peeling off the cover film, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 70 μm.

(Example 22)
The particle-containing photopolymerizable composition (O) is applied on the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (Q) from which the monomer-absorbing layer is exposed by peeling off the cover film, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 65 μm.

(Example 23)
The particle-containing photopolymerizable composition (P) is applied onto the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (Q) from which the monomer-absorbing layer is exposed by peeling off the cover film, and the cover film is bonded together. A laminate was obtained.
Next, ultraviolet rays (illuminance: 5 mW / cm ² ) are irradiated for 10 minutes from both sides of the cover film side of the laminate and the base material side of the monomer-absorbing sheet with base material using a black light lamp as a light source. The layer structure of the monomer-absorbing layer and the particle-containing photopolymerization / curing layer is formed by photocuring the particle-containing photopolymerizable composition layer to form a particle-containing photopolymerization / curing layer (particle-containing layer, fine particle-containing layer). A sheet having
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 66 μm.

(Example 24)
The particle-containing photopolymerizable composition (Q) is applied onto the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (Q) with the cover film peeled off to expose the monomer-absorbing layer, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 76 μm.

(Example 25)
The particle-blended photopolymerizable composition (A) is applied onto the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (Q) with the cover film peeled off to expose the monomer-absorbing layer, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 80 μm.

(Example 26)
The incompatible substance-containing photopolymerizable composition (A) is applied on the monomer-absorbing layer (Q) of the monomer-absorbing sheet (Q) with a base material from which the monomer-absorbing layer is exposed by peeling off the cover film, The laminated body was obtained by bonding.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, and the incompatible substance-containing photopolymerizable composition layer is photocured to form an incompatible substance-containing photopolymerizable cured layer (coat layer). The sheet | seat which has a laminated structure with a compatible substance mixing photopolymerization hardening layer was manufactured.
The thickness (total thickness) of the laminated structure of the monomer-absorbing layer and the incompatible substance-containing photopolymerized cured layer was 74 μm.

(Example 27)
The particle-containing photopolymerizable composition (Q) is applied onto the monomer-absorbing layer (R) of the substrate-absorbing monomer-absorbing sheet (R) from which the monomer-absorbing layer is exposed by peeling off the cover film, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 175 μm.

(Example 28)
The particle-containing photopolymerizable composition (Q) is applied onto the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (S) from which the monomer-absorbing layer is exposed by peeling off the cover film, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 170 μm.

(Example 29)
The particle-containing photopolymerizable composition (Q) is applied onto the monomer-absorbing layer (T) of the substrate-absorbing monomer-absorbing sheet (T) with the monomer-absorbing layer exposed by peeling off the cover film, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 150 μm.

(Example 30)
The particle-containing photopolymerizable composition (Q) is applied onto the monomer-absorbing layer (U) of the substrate-absorbing monomer-absorbing sheet (U) with the cover film peeled off to expose the monomer-absorbing layer, and the cover film is bonded A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 175 μm.

(Example 31)
The particle-containing photopolymerizable composition (Q) is applied onto the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (V) from which the monomer-absorbing layer is exposed by peeling off the cover film, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 125 μm.

(Example 32)
The particle-blended photopolymerizable composition (R) is applied onto the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (Q) with the monomer-absorbing layer exposed by peeling off the cover film, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 110 μm.

(Example 33)
The particle-containing photopolymerizable composition (R) is applied on the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (V) from which the monomer-absorbing layer is exposed by peeling off the cover film, and the cover film is bonded together. A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 100 μm.

(Example 34)
The particle-containing photopolymerizable composition (R) is applied onto the monomer-absorbing layer of the substrate-absorbing monomer-absorbing sheet (X) with the monomer-absorbing layer exposed by peeling off the cover film, and the cover film is bonded together A laminate was obtained.
Next, 1 minute after the formation of the laminate, a black light lamp was used as a light source from both sides of the cover film side of the laminate and the substrate side of the monomer-absorbing sheet with substrate, and ultraviolet rays (illuminance: 5 mW / cm ² ) is irradiated for 10 minutes, the particle-containing photopolymerizable composition layer is photocured to form a particle-containing photopolymerization-cured layer (particle-containing layer, fine-particle-containing layer). A sheet having a laminated structure with a photopolymerized cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer was 110 μm.

(Example 35)
The cover film is peeled off to expose the monomer-absorbing layer after the particle-mixed room temperature polymerizable composition (A) is applied to the release film of the cover film to form a particle-blended room temperature polymerizable composition layer. A laminated body was formed by laminating the monomer-absorbing sheet with substrate (Q) so that the monomer-absorbing layer and the particle-containing photopolymerizable composition layer were in contact with each other.
Next, the laminate is allowed to stand for 24 hours in a light-shielded state, and the particle-containing room temperature polymerizable composition layer is cured to form a particle-containing room temperature polymerization cured layer (particle-containing layer, fine particle-containing layer). Thus, a sheet having a laminated structure of the monomer absorption layer and the particle-containing room temperature polymerization cured layer was produced.
The thickness (total thickness) of the laminated structure of the monomer-absorbing layer and the particle-containing room-temperature polymerization cured layer was 120 μm.
In addition, for observation with a scanning electron microscope (SEM), a sheet on which a light-shielded light-shielded layer was formed by allowing it to stand for 7 days while forming a light-shielded light was used.

(Comparative Example 1)
A surface irregularity sheet was produced in the same manner as in Example 1 except that a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm was used instead of the monomer-absorbing sheet with substrate (A).

(Comparative Example 2)
A surface irregularity sheet was produced in the same manner as in Example 2 except that a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm was used instead of the monomer-absorbing sheet (A) with a substrate.

(Comparative Example 3)
Particles so that a biaxially stretched polyethylene terephthalate film with a thickness of 38 μm was used in place of the monomer-absorbing sheet (Q) with a substrate, and the thickness after curing of the photopolymerizable composition layer containing particles was 45 μm A sheet was produced in the same manner as in Example 20 except that the blended photopolymerizable composition was applied.

(Comparative Example 4)
Particles so that a biaxially stretched polyethylene terephthalate film with a thickness of 38 μm was used in place of the monomer-absorbing sheet (Q) with a substrate, and the post-curing thickness of the particle-containing photopolymerizable composition layer was 45 μm A sheet was produced in the same manner as in Example 21 except that the blended photopolymerizable composition was applied.

(Comparative Example 5)
Particles so that a biaxially stretched polyethylene terephthalate film with a thickness of 38 μm was used in place of the monomer-absorbing sheet (Q) with a substrate, and the post-curing thickness of the particle-containing photopolymerizable composition layer was 50 μm A sheet was produced in the same manner as in Example 23 except that the blended photopolymerizable composition was applied.

(Comparative Example 6)
Using a biaxially stretched polyethylene terephthalate film with a thickness of 38 μm instead of the monomer-absorbing sheet (Q) with a base material, and blending particles so that the thickness after curing of the particle-blended photopolymerizable composition layer is 50 μm A sheet was produced in the same manner as in Example 25 except that the photopolymerizable composition was applied.

(Comparative Example 7)
Particles so that a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm was used in place of the monomer-absorbing sheet (Q) with a substrate, and the thickness of the particle-containing photopolymerizable composition layer after curing was 60 μm A sheet was produced in the same manner as in Example 26 except that the blended photopolymerizable composition was applied.

(Comparative Example 8)
Use of a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm instead of the monomer-absorbing sheet (Q) with a substrate, and a particle-containing room temperature polymerizable composition (A) so that the thickness after curing is 80 μm A sheet was produced in the same manner as in Example 35 except that was applied.

(Evaluation 1)
About an Example and a comparative example, tack (adhesiveness) was evaluated by the following (tack evaluation method), and haze value was measured by the following (haze measuring method). Further, the gel fraction of the monomer-absorbing layer and the 100% modulus of the monomer-absorbing layer of each of the monomer-absorbing sheets used in the examples are represented by the following (Method for measuring gel fraction) and (Method for measuring 100% modulus). ) And measured. The results are shown in Table 1.

(Tack evaluation method)
The cover film of each sheet was peeled off to expose the use surface of each sheet. The tack of the use surface of each sheet was evaluated by finger tack. The case where tack was caused in terms of use of the sheet was evaluated as “Yes”, while the case where tack was not generated was evaluated as “None”.

(Measurement method of haze)
The cover film of each sheet was peeled off to expose the use surface of each sheet. Next, the haze value of each sheet was measured using a haze meter (“HM-150” manufactured by Murakami Color Research Laboratory Co., Ltd.) according to JIS-K7105.

(Measurement method of gel fraction)
Instead of the 38 μm thick biaxially stretched polyethylene terephthalate film, a 38 μm thick biaxially stretched polyester film (trade name “MRF38”: manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.) with one side subjected to silicone-based release treatment was used. Except for the above, a monomer-absorbing sheet with a substrate was prepared separately in the same manner as in the preparation examples of the monomer-absorbing sheet with a substrate used in each Example.
Thereafter, a monomer-absorbing layer (about 500 mg) was collected from a separately prepared substrate-absorbing monomer-absorbing sheet, and the dry weight W1 (g) was measured. Next, the monomer absorption layer is immersed in ethyl acetate at about 23 ° C. for 7 days, and then the monomer absorption layer is taken out and dried at 130 ° C. for 2 hours. The dry weight W2 of the obtained monomer absorption layer (G) was measured. And the gel fraction was computed by the following formula.
Gel fraction (wt%) = (W2 / W1) x 100 (wt%)

(Measurement method of 100% modulus)
Instead of the 38 μm thick biaxially stretched polyethylene terephthalate film, a 38 μm thick biaxially stretched polyester film (trade name “MRF38”: manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.) with one side subjected to silicone-based release treatment was used. Except for the above, a monomer-absorbing sheet with a substrate was prepared separately in the same manner as in the preparation examples of the monomer-absorbing sheet with a substrate used in each Example.
Thereafter, the monomer-absorbing layer was cut out in a square shape having a width of 50 mm and a length of 50 mm from a separately prepared monomer-absorbing sheet with a base material, and rounded into a columnar shape in the width direction.
About the monomer absorption layer rounded in the column shape in the width direction, using a tensile tester (“TG-1KN” manufactured by Minebea Co., Ltd.), stress-strain at 23 ° C. under conditions of a pulling speed of 50 mm / min and a chuck interval of 10 mm. A line was determined and its 100% modulus was read.

  In Comparative Examples 1 and 2, since a biaxially stretched polyethylene terephthalate film having a thickness of 38 μm was used instead of the monomer-absorbing sheet with the base material, the gel fraction of the monomer-absorbing layer and the 100% modulus of the monomer-absorbing layer were , Not measured. In Examples 18 to 26, haze was not measured.

(Evaluation 2)
With a scanning electron microscope (SEM), the shape of the use surface of each sheet and the sheet cross section were observed. In Examples 1 and 2 and Comparative Examples 1 and 2, S-3200 manufactured by Hitachi High-Technologies Corporation is used as a scanning electron microscope (SEM). In other examples and comparative examples, scanning type is used. As an electron microscope (SEM), S-4800 manufactured by Hitachi High-Technologies Corporation was used. Scanning electron micrographs (SEM images) of the use surface and sheet cross-section of each sheet are shown in FIGS.

  The thickness of the monomer-absorbing layer in the monomer-absorbing sheet with the substrate is the thickness of the monomer-absorbing sheet with the substrate (the thickness of the substrate, the monomer-absorbing layer and the cover film) using a 1/1000 dial gauge. It measured and calculated | required by remove | excluding the thickness of a base material and a cover film from the thickness of this monomer-absorbing sheet with a base material. The results are shown in the column of the thickness (B) of the monomer absorption layer in Table 2.

  The thickness (total thickness) of the laminated structure of the monomer absorption layer and the particle-containing photopolymerization / curing layer (incompatible substance-containing photopolymerization / curing layer, particle-containing room temperature polymerization / curing layer) is 1/1000 dial gauge. Then, the thickness of the prepared sheet [monomer-absorbing sheet with substrate, photopolymerization / curing layer containing particles (photopolymerization / curing layer containing incompatible material, room-temperature polymerization / curing layer containing particles) and cover film thickness] was measured. And it calculated | required by remove | excluding the thickness of the base material of the monomer absorptive sheet with a base material, and the thickness of a cover film from the thickness of this produced sheet | seat. The results are shown in the column of total thickness (A + B) in Table 2.

  The thickness of the particle-blended photopolymerization / curing layer (incompatible substance-blending photopolymerization / curing layer, particle-blending normal temperature polymerization / curing layer) was determined by excluding the thickness of the monomer absorption layer from the total thickness. The thickness of the particle-blended photopolymerization / curing layer (incompatible substance-blending photopolymerization / curing layer) is not a measured value but a theoretical value. The results are shown in the column of the thickness (A) of the particle (incompatible substance) -blended photopolymerization / curing layer (particle-blending room temperature polymerization / curing layer) in Table 2.

  From the scanning electron micrograph of the cross section of the sheet, the layer surface of the portion where the particles are distributed in the particle-containing photopolymerization / curing layer or the particle-containing room temperature polymerization / hardening layer (sometimes referred to as “particle uneven distribution portion” or “segregation layer”) The thickness (thickness) in the thickness direction and the portion where the incompatible substance is distributed in the incompatible substance-containing photopolymerized cured layer (sometimes referred to as “incompatible substance uneven distribution part” or “coat layer”) ) In the thickness direction from the surface of the layer was determined and shown in the column of the thickness of the unevenly distributed portion of the particles (incompatible substances) in Table 2. In addition, the thickness of a particle uneven distribution part or an incompatible substance uneven distribution part is an average value measured from the scanning electron micrograph of a sheet | seat cross section.

  In the figure which shows a sheet | seat, the scanning electron micrograph (scanning electron micrograph of a in each figure) in the utilization surface surface (particle mixing photopolymerization hardening layer surface and incompatible substance mixing photopolymerization hardening layer surface) of a sheet | seat is shown. The magnification and the magnification of the scanning electron micrograph of the cross section of the sheet corresponding to the scanning electron micrograph b of each figure are 500 times. In addition, a scanning electron micrograph of a sheet cross section corresponding to the scanning electron micrograph of c in each figure [a particle unevenly distributed portion (segregation layer) of a particle-containing photopolymerization / curing layer (particle-containing room temperature polymerization / curing layer) in the sheet cross-section] Magnification of the incompatible substance-containing photopolymerized cured layer in the vicinity of the incompatible substance uneven distribution portion (coat layer) is 2000 times in FIGS. 9 to 26 and 500 times in FIGS. 27 to 35. is there. Further, a scanning electron micrograph of the sheet cross-section corresponding to the scanning electron micrograph of d in FIGS. 20 and 38 [a further enlargement of the vicinity of the particle uneven distribution portion (segregation layer) of the particle-containing photopolymerized cured layer in the sheet cross-section) ] Is 10,000 times.

From Evaluation 1 and Evaluation 2, the sheets of Examples 1 to 17 had no tack on the use surface, and the sheets of Examples 18 to 24 had a small amount of added particles and had tack. Moreover, it has confirmed that it had light-scattering property from the measurement result of a haze value.
The sheets of Examples 1 to 25 and 27 to 35 are scanning electron micrographs (scanning electron micrographs of a in each figure) on the surface of the sheet usage surface of each sheet and scanning electron micrographs of the sheet cross section (each From the scanning electron micrographs of b, c, and d in the figure, it can be confirmed that the surface of the use surface has a concavo-convex structure of particles, and can be used as a surface concavo-convex sheet.
Moreover, a sheet could be obtained without removing volatile components such as a solvent contained in the particle-containing photopolymerizable composition by evaporation.
Furthermore, it was confirmed that a surface uneven sheet can be produced by providing an uneven structure on the surface of a material having a low elastic modulus.
Furthermore, it was confirmed that the surface uneven sheet could be produced regardless of the gel fraction and 100% modulus (hardness) of the monomer absorption layer.

From the scanning electron micrograph in the sheet cross section of the sheet, in the examples, the particles in the photopolymerization cured layer containing particles and the particles in the room temperature polymerization cured layer containing particles and the incompatible substance in the photopolymerization cured layer containing the incompatible material are: It was confirmed that the distribution was unevenly distributed on the surface of the layer or in the vicinity thereof. On the other hand, in the comparative example, the particles in the particle-containing photopolymerization / curing layer, the particles in the room-temperature polymerization / curing layer, and the incompatible substance in the incompatible substance-containing photopolymerization / curing layer are not unevenly distributed. It was confirmed that they were dispersed and distributed.
Further, from Table 2, in the examples, the particle unevenly distributed part and the incompatible substance unevenly distributed part with respect to the thickness of the particle-containing photopolymerized / cured layer, the incompatible substance-blended photopolymerized / cured layer, and the particle-blended room temperature polymerized / cured layer. It was confirmed that the particles and incompatible substances were unevenly distributed in the layer. On the other hand, in the comparative example, the thickness of the particle-containing photopolymerization / curing layer or the incompatible substance-containing photopolymerization / curing layer is the same as the thickness of the particle unevenly distributed part or the incompatible substance unevenly distributed part, and is dispersed in the layer. It was confirmed that it was distributed.

(Evaluation 3)
The sheets of Example 26 and Comparative Example 7 were evaluated by IR analysis of wettability, appearance, total light transmittance, adhesive strength, holding power, and utilization surface.

  The wettability was evaluated by measuring the change in contact angle with time after the droplets of water and methylene iodide were brought into contact with the use surface of the sheet. The results of changes in contact angle with time are shown in Table 3.

  The appearance was evaluated by visual observation of the surface of the use surface of the sheet. The results are shown in the column of appearance in Table 4.

  The total light transmittance was measured according to JIS K 7361 using a haze meter (“HM-150” manufactured by Murakami Color Research Laboratory Co., Ltd.). The results are shown in the column of total light transmittance in Table 4.

The adhesive strength of the surface of the sheet used is determined by bonding a sheet cut to a width of 20 mm to an adherend (glass plate or stainless steel plate) under the conditions of a rubber roller with a load of 2 kg, and a method for testing the adhesive strength of JIS Z 0237 According to the above, it was determined by a 180 ° peel measurement at a peeling speed of 300 mm / min with a tensile measuring machine. The tensile measuring machine used was TG-1KN manufactured by Minebea. The results are shown in the column of adhesive strength in Table 4.
Further, the adherend after peeling off the sheet was observed to confirm whether or not the adherend was contaminated. When contamination was caused, “contamination” was written under the measured adhesion strength in Table 4.

  The holding force of the surface of the sheet used is determined by sticking the sheet to the bakelite plate with a contact area of width 10 mm × length 20 mm, leaving it for 24 hours, and then leaving it at 40 ° C. for 30 minutes. The sheet was suspended, a uniform load of 500 g was applied to the free end of the sheet, and the shift distance of the sheet after 1 hour at 40 ° C. was measured. The results are shown in the holding power column of Table 4. The case where the sheet dropped from the bakelite plate was evaluated as “falling”.

  In Table 3, each value is a contact angle [° (degree)]. The elapsed time means the elapsed time since the droplet contacted.

  From Table 3, it was confirmed that the sheet of Example 26 acted in the direction in which the liquid was more applied over time when the liquid contacted. From this, it is considered that the sheet is excellent in wettability and adhesion to droplets, and is effective as an object to be coated, for example, in an aqueous or oil-based paint.

  Since the sheet of Example 26 has a transparent appearance while containing an incompatible material, it can be used particularly effectively for applications requiring transparency. Moreover, even if it peeled after sticking a sheet | seat to a to-be-adhered body, contamination did not arise. Furthermore, the holding power was excellent.

From the IR chart (FIG. 44) of the use surface of the sheet of Example 26 and the IR chart (FIG. 45) of the use surface of the sheet of Comparative Example 7, Example 26 is incompatible with Comparative Example 7. peak component of SEBS-derived substances (hydrocarbon component near 2900 cm ^-1, the styrene component in the vicinity of 700 cm ^-1) is large. From this, it is considered that the concentration of the incompatible substance is higher on the use surface of the sheet of Example 26 than on the use surface of the sheet of Comparative Example 7.

2 is a scanning electron micrograph on the surface of the application surface of the surface uneven sheet of Example 1. FIG. 4 is a scanning electron micrograph on the surface of the application surface of the surface uneven sheet of Example 2. FIG. 4 is a scanning electron micrograph on the surface of the use surface of the surface uneven sheet of Example 3. FIG. 4 is a scanning electron micrograph on the surface of the application surface of the surface irregular sheet of Example 4. FIG. 6 is a scanning electron micrograph on the surface of the application surface of the surface uneven sheet of Example 5. FIG. It is a scanning electron micrograph in the utilization surface surface of the surface uneven | corrugated sheet | seat of Example 6. FIG. 4 is a scanning electron micrograph on the surface of the use surface of the surface uneven sheet of Example 7. FIG. 4 is a scanning electron micrograph on the surface of the application surface of the surface irregular sheet of Example 8. FIG. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the surface uneven | corrugated sheet | seat of Example 9. FIG. 4 is a scanning electron micrograph of the sheet cross section of the sheet of Example 10. FIG. 3 is a scanning electron micrograph of the sheet cross section of the sheet of Example 11. FIG. 6 is a scanning electron micrograph of the sheet cross section of the sheet of Example 12. It is a scanning electron micrograph in the sheet | seat cross section of the sheet | seat of Example 13. FIG. It is a scanning electron micrograph in the sheet | seat cross section of the sheet | seat of Example 14. FIG. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of Example 15. FIG. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of Example 16. FIG. It is a scanning electron micrograph in the sheet | seat cross section of the sheet | seat of Example 17. FIG. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of Example 18. FIG. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of Example 19. FIG. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of Example 20. FIG. It is a scanning electron micrograph in the utilization surface surface of a sheet | seat of Example 21, and a sheet | seat cross section. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of Example 22. FIG. It is a scanning electron micrograph in the utilization surface surface of a sheet | seat of Example 23, and a sheet | seat cross section. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of Example 24. FIG. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of Example 25. FIG. It is a scanning electron micrograph in the utilization surface surface of a sheet | seat of Example 26, and a sheet | seat cross section. 4 is a scanning electron micrograph of the sheet cross section of the sheet of Example 27. FIG. 42 is a scanning electron micrograph of the sheet cross section of the sheet of Example 28. FIG. 4 is a scanning electron micrograph in the sheet cross section of the sheet of Example 29. FIG. 4 is a scanning electron micrograph in the sheet cross section of the sheet of Example 30. FIG. 4 is a scanning electron micrograph of the sheet cross section of the sheet of Example 31. FIG. 4 is a scanning electron micrograph of the sheet cross section of the sheet of Example 32. FIG. It is a scanning electron micrograph in the sheet | seat cross section of the sheet | seat of Example 33. FIG. 42 is a scanning electron micrograph of the sheet cross section of the sheet of Example 34. FIG. 40 is a scanning electron micrograph of the sheet cross section of the sheet of Example 35. FIG. 4 is a scanning electron micrograph on the surface of the application surface of the surface uneven sheet of Comparative Example 1. 4 is a scanning electron micrograph on the surface of the application surface of the surface uneven sheet of Comparative Example 2. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of the comparative example 3. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of the comparative example 4. 6 is a scanning electron micrograph of the use surface and sheet cross section of the sheet of Comparative Example 5. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of the comparative example 6. It is a scanning electron micrograph in the utilization surface surface and sheet | seat cross section of the sheet | seat of the comparative example 7. 10 is a scanning electron micrograph of a sheet cross section of a sheet of Comparative Example 8. FIG. 26 is an IR chart of a use surface of a sheet of Example 26. FIG. 14 is an IR chart of the surface of the use surface of the sheet of Comparative Example 7.

Explanation of symbols

1a Use surface of the surface uneven sheet of Example 1 2a Use surface of the surface uneven sheet of Example 2 3a Use surface of the surface uneven sheet of Example 3 4a Use surface of the surface uneven sheet of Example 4 5a Use surface surface of surface uneven sheet of Example 5 6a Use surface surface of surface uneven sheet of Example 6 7a Use surface surface of surface uneven sheet of Example 7 8a Use surface surface of surface uneven sheet of Example 9 9a Example 9 9b Sheet cross section of the sheet of Example 9 9c Particle distribution portion of the particle-containing photopolymerized cured layer in the sheet cross section of the sheet of Example 9 10b Sheet cross section of the sheet of Example 10 10c Sheet of Example 10 11b In the sheet cross section of the sheet of Example 11 11c In the sheet cross section of the sheet of Example 11 Particle-distributed portion of particle-containing photopolymerization / cured layer 12b Sheet cross-section of sheet of Example 12 12c Particle-distributed portion of particle-containing photo-polymerized / cured layer in cross-section of sheet of Example 12 13b Sheet cross-section of sheet of Example 13 13c 14b Particle distribution portion of the particle-containing photopolymerization cured layer in the sheet cross section of the sheet of Example 13 14b Sheet cross section of the sheet of Example 14 14c Particle uneven distribution portion of the particle combination photopolymerization cured layer in the sheet cross section of Example 14 15a Example 15b Utilization surface of the sheet 15b Sheet cross section of the sheet of Example 15 15c Particle uneven distribution portion of the particle-containing photopolymerized cured layer in the sheet cross section of the sheet of Example 15 16a Utilization surface of the sheet of Example 16 16b Example 16 Sheet cross-section 16c of the sheet of Example 16 Particle-containing photopolymerization curing in the sheet cross-section of the sheet of Example 16 Particle unevenly distributed portion 17b Sheet cross section of the sheet of Example 17 17c Particle unevenly distributed portion of the particle-containing photopolymerized cured layer in the sheet cross section of the sheet of Example 17 18a Utilization surface of the sheet of Example 18 18b Sheet of Example 18 Sheet cross section 18c Particle distribution portion of particle-containing photopolymerization cured layer in sheet cross section of sheet of Example 18 19a Utilization surface of sheet of Example 19 19b Sheet cross section of sheet of Example 19 19c Sheet of sheet of Example 19 Particle uneven distribution part of particle-containing photopolymerization / curing layer in cross section 20a Utilization surface of sheet of example 20 20b Sheet cross-section of sheet of example 20 20c Particle uneven distribution of particle-containing photopolymerization / curing layer in sheet cross-section of sheet of example 20 Part 20d Particle uneven distribution part 21 of the particle-containing photopolymerization cured layer in the sheet cross section of the sheet of Example 20 a Use side surface of the sheet of Example 21 21b Sheet cross section of the sheet of Example 21 21c Particle uneven distribution portion of the particle-containing photopolymerization cured layer in the sheet cross section of the sheet of Example 21 22a Use side surface of the sheet of Example 22 22b Sheet cross section of the sheet of Example 22 22c Particle uneven distribution portion of the particle-containing photopolymerization cured layer in the sheet cross section of the sheet of Example 23 23a Use surface of the sheet of Example 23 23b Sheet cross section of the sheet of Example 23 23c Example Particle-distributed portion of particle-containing photopolymerization cured layer in sheet cross section of 23 sheet 24a Surface of use surface of sheet of Example 24 24b Sheet cross-section of sheet of Example 24 24c Particle-mixed photopolymerization in sheet cross section of sheet of Example 24 Particle uneven distribution portion of hardened layer 25a Surface of use surface of sheet of example 25 25b Sheet of example 25 Sheet cross section 25c Particle uneven distribution part of particle-containing photopolymerization cured layer in sheet cross section of sheet of Example 25 26a Use surface surface of sheet of Example 26 26b Sheet cross section of sheet of Example 26 26c Sheet cross section of sheet of Example 26 Incompatible material-mixed photopolymerization cured layer incompatible material uneven portion 27c Particle-mixed photopolymerized cured layer particle-distributed portion 28c in Example 27 sheet cross section Particle mixed light in Example 28 sheet cross section Particle uneven distribution part 29c of polymerization hardening layer Particle distribution part 30c of particle mixing photopolymerization hardening layer in sheet cross section of sheet of Example 29 Particle distribution part 31c of particle mixing photo polymerization hardening layer in sheet cross section of sheet of Example 30 Example Particle uneven distribution portion 32c of particle-containing photopolymerization cured layer in sheet cross section of 31 sheet Particle-distributed portion 33c of the particle-containing photopolymerization / curing layer in the sheet cross-section of the particle 33c Particle-distribution portion 34c of the particle-containing photo-polymerization / curing layer in the sheet cross-section of the sheet of Example 33 Particle unevenly distributed part 35c Particle unevenly distributed part 36a of particle-containing room temperature polymerization cured layer in sheet cross section of sheet of Example 35 36a Use surface surface of surface uneven sheet of Comparative Example 1 37a Use surface surface of surface uneven sheet of Comparative Example 2 38a Use surface of the sheet of Comparative Example 3 38b Sheet cross section of the sheet of Comparative Example 3 38c Particle blended photopolymerized cured layer in the sheet cross section of the sheet of Comparative Example 3 38d Particle blended photopolymerized cured layer in the sheet cross section of the sheet of Comparative Example 3 39a Utilization surface of the sheet of Comparative Example 4 39b Sheet cross section of the sheet of Comparative Example 4 39c Sheet of Comparative Example 4 Particle Compounding Photopolymerized and Cured Layer 40a in Sheet Section 40a Utilization Surface of Sheet of Comparative Example 5 40b Sheet Section of Comparative Example 5 Sheet 40c Particle Compounded Photopolymerized and Cured Layer 41a in Comparative Section 5 Sheet 41a Sheet of Comparative Example 6 41b Sheet cross section of sheet of Comparative Example 6 41c Particle blended photopolymerized cured layer in sheet section of Comparative Example 6 sheet 42a Use surface of sheet of Comparative Example 7 sheet 42b Sheet section of Comparative Example 7 sheet 42c Comparison Incompatible material-containing photopolymerization / curing layer 43c in the sheet cross section of the sheet of Example 7

Claims (23)

  A polymer member having a laminated structure of a polymer layer and a monomer absorption layer capable of absorbing at least one monomer component constituting the polymer, wherein the polymer layer is incompatible with the polymer. A polymer member, wherein the polymer member is a non-compatible substance unevenly distributed polymer layer that contains in a form that is distributed unevenly at the interface opposite to the monomer absorption layer or in the vicinity of the interface.   The polymer member according to claim 1, wherein a cover film is laminated on a surface of the polymer layer opposite to the monomer absorption layer.   3. The polymer member according to claim 1, wherein the vicinity of the interface opposite to the monomer absorption layer is a region within 50% of the total thickness in the thickness direction from the interface opposite to the monomer absorption layer.   The polymer member according to any one of claims 1 to 3, wherein the monomer absorption layer is a monomer absorption polymer layer made of a polymer.   The polymer member according to claim 4, wherein the monomer component constituting the polymer of the monomer-absorbing polymer layer is in common with at least one of the monomer components constituting the polymer of the incompatible substance uneven distribution polymer layer.   The polymer member according to any one of claims 1 to 5, wherein the incompatible substance is a particle.   The polymer member according to any one of claims 1 to 6, wherein the incompatible substance is a polymer.   The polymer member according to any one of claims 1 to 7, wherein the polymer of the immiscible substance uneven distribution polymer layer is an acrylic polymer.   The polymer member according to any one of claims 1 to 8, wherein the incompatible substance unevenly distributed polymer layer is an incompatible substance unevenly distributed pressure-sensitive adhesive layer.   The polymer member according to any one of claims 1 to 9, which has a tape-like or sheet-like form.   The polymer member according to any one of claims 1 and 3 to 10, wherein the incompatible substance is particles, and the surface has irregularities due to the particles.   Contains an incompatible substance that contains an incompatible substance that is incompatible with the polymer obtained by polymerizing the polymerizable monomer and the polymerizable monomer on at least one surface of the monomer absorption layer capable of absorbing the polymerizable monomer. By providing an incompatible substance-containing polymerizable composition layer made of a polymerizable composition, the incompatible substance is moved within the incompatible substance-containing polymerizable composition layer, and the incompatible substance becomes a monomer absorption layer. After obtaining an immiscible substance unevenly distributed polymerizable composition layer that is unevenly distributed at the interface on the opposite side or near the interface, the incompatible substance unevenly distributed polymerizable composition layer is polymerized to obtain an incompatible An incompatible substance uneven distribution polymer layer is formed in which the substance is distributed unevenly at the interface opposite to the monomer absorption layer or near the interface, and has a laminated structure of the incompatible substance distribution polymer layer and the monomer absorption layer. Obtaining polymer parts Method for producing a polymer member, wherein.   An incompatible substance containing an incompatible substance that is incompatible with the polymer obtained by polymerizing the polymerizable monomer and the polymerizable monomer on the monomer-absorbing surface of the monomer-absorbing sheet capable of absorbing the polymerizable monomer. A laminate having a configuration in which an incompatible substance-containing polymerizable composition layer made of a containing polymerizable composition is laminated and a cover film is laminated on the incompatible substance-containing polymerizable composition layer is produced. The incompatible substance is moved in the incompatible substance-containing polymerizable composition layer, and the incompatible substance is distributed unevenly at the interface opposite to the monomer absorption layer or near the interface. After obtaining the soluble substance unevenly distributed polymerizable composition layer, the incompatible substance unevenly distributed polymerizable composition layer is polymerized, and the incompatible substance is unevenly distributed on the interface opposite to the monomer absorption layer or in the vicinity of the interface. An incompatible material that has an unevenly distributed polymer layer Form, method for producing a polymer member, characterized in that to obtain a polymer member having a laminated structure of the immiscible material unevenly distributed polymer layer and the monomer-absorptive layer.   The method for producing a polymer member according to claim 13, wherein the cover film has peelability.   The method for producing a polymer member according to any one of claims 12 to 14, wherein the monomer absorption layer is a monomer absorption polymer layer made of a polymer.   The method for producing a polymer member according to claim 15, wherein the monomer component constituting the polymer of the monomer-absorbing polymer layer is in common with at least one monomer component constituting the polymer of the incompatible substance uneven distribution polymer layer.   The method for producing a polymer member according to any one of claims 12 to 16, wherein light irradiation is used in the polymerization of the incompatible substance uneven distribution polymerizable composition layer.   The method for producing a polymer member according to any one of claims 12 to 17, wherein the incompatible substance is a particle.   The method for producing a polymer member according to any one of claims 12 to 18, wherein the incompatible substance is a polymer.   The method for producing a polymer member according to any one of claims 12 to 19, wherein an acrylic monomer is used as the polymerizable monomer.   The method for producing a polymer member according to any one of claims 12 to 20, wherein the incompatible substance unevenly distributed polymer layer is an incompatible substance unevenly distributed pressure-sensitive adhesive layer.   The method for producing a polymer member according to any one of claims 12 to 21, wherein a polymer member having a tape-like or sheet-like form is obtained.   The method for producing a polymer member according to any one of claims 12 to 22, wherein particles are used as the incompatible substance, and irregularities due to the particles are formed on the surface.