WO2017090679A1 - 扉体 - Google Patents
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- WO2017090679A1 WO2017090679A1 PCT/JP2016/084794 JP2016084794W WO2017090679A1 WO 2017090679 A1 WO2017090679 A1 WO 2017090679A1 JP 2016084794 W JP2016084794 W JP 2016084794W WO 2017090679 A1 WO2017090679 A1 WO 2017090679A1
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- Prior art keywords
- hard coat
- mass
- parts
- door body
- sheet
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- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
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-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
Definitions
- the present invention relates to a novel door body.
- glass has opened and closed the front panel of the door body that opens and closes the front part of the main body and the flat part of the main body of articles such as refrigerators, washing machines, cupboards, and clothes racks due to its transparent design feeling It attracts attention as a member constituting the flat panel of the lid.
- glass has problems such as low impact resistance and easy cracking; low workability; difficult to handle; high specific gravity and heavy; difficult to meet demands for curved surfaces and flexibility of articles. Therefore, it has been proposed to use a laminated sheet in which a resin sheet (decorative sheet) with a design attached to the back side of a transparent resin sheet is used instead of glass as the front panel of the door body (for example, Patent Documents). 1).
- the conventional pressure-sensitive adhesive has a disadvantage that peeling occurs due to outgas generated from the resin sheet, particularly in a high-temperature and high-humidity environment (hereinafter, sometimes abbreviated as “wet heat peeling problem”); In the production process such as, when the decorative sheet is pressed from the back side, it will be observed as a dent from the front side of the door body etc.
- sink marks may occur during the cooling, if the adhesion strength between the decorative sheet and the transparent resin sheet, particularly the heat-resistant adhesion strength, is small, it must counter the peeling force that acts when cooling the foam insulation. Can not be done and peeling will occur. This is a typical “problem of peeling during the filling process”. In order to use the adhesive for bonding the transparent resin sheet and the decorative sheet, it is required to solve these disadvantages.
- a monomer mixture (a) containing a (meth) acrylic acid ester and a carboxyl group-containing monomer and a hydroxyl group-containing monomer copolymerizable with the (meth) acrylic acid ester (a ) Is an acrylic pressure-sensitive adhesive composition containing an acrylic copolymer (A) having a weight average molecular weight of 500,000 to 2,000,000 and a crosslinking agent (B), wherein the acrylic copolymer (A ) With respect to 100 parts by mass, 0.05 to 1.6 parts by mass of a metal chelate-based crosslinking agent and 0.05 to 0.2 parts by mass of an epoxy group-containing crosslinking agent are blended as the crosslinking agent (B).
- An object of the present invention is to provide a door body using a resin sheet instead of glass, having a transparent design feeling like glass, and having excellent scratch resistance.
- Another object of the present invention is a door body using a resin sheet instead of glass, and provides a door body which has solved the problems of wet heat peeling, the problem of dents, and the problem of peeling during the filling process. There is.
- a door that opens and closes the front of the article body A front panel that constitutes the front surface, a frame that supports at least a part of the outer end of the front panel, and a back panel that constitutes the back surface;
- the front panel includes a hard coat laminated sheet;
- the hard coat laminated sheet has layers of a first hard coat, a second hard coat, and a transparent resin sheet in this order from the front surface side;
- the first hard coat is (A) 100 parts by mass of a polyfunctional (meth) acrylate, (B) 0.01 to 7 parts by mass of a water repellent agent, and (C) 0.01 to 10 parts by mass of a silane coupling agent, and formed from a paint that does not contain inorganic particles;
- the second hard coat is (A) 100 parts by weight of polyfunctional (meth) acrylate, and (D) formed from a paint containing 50 to 300 parts by weight of inorganic fine particles having an average particle diameter of 1 to 300 nm
- the door body [2]. The door according to [1] above, having a display on at least a part of the front surface of the door. [3]. [1] or [2] above, wherein the (C) silane coupling agent includes one or more selected from the group consisting of a silane coupling agent having an amino group and a silane coupling agent having a mercapto group. The door described in 1. [4]. The door body according to any one of [1] to [3] above, wherein the water repellent (B) includes a (meth) acryloyl group-containing fluoropolyether water repellent. [5].
- the door body according to any one of items [1] to [4], wherein the coating material forming the second hard coat further comprises 0.01 to 1 part by mass of (E) a leveling agent. [6].
- a door that opens and closes the front of the article body A front panel that constitutes the front surface, a frame that supports at least a part of the outer end of the front panel, and a back panel that constitutes the back surface;
- the front panel includes a hard coat laminated sheet;
- the hard coat laminated sheet has layers of a first hard coat, a second hard coat, and a transparent resin sheet in this order from the front surface side;
- the first hard coat is formed of a coating that does not contain inorganic particles;
- the second hard coat is formed of a paint containing inorganic particles;
- the following (i) to (iii): (I) total light transmittance of 80% or more; (Ii) Haze 5% or less; (Iii) A door body satisfying a yellowness index of 3 or less
- the hard coat laminated sheet is further provided with the following (iv) and (v): (Iv) The water contact angle on the surface of the first hard coat is 100 degrees or more; (V) The door body according to the above item [6], wherein a water contact angle after 20,000 cotton swabs on the surface of the first hard coat satisfies 100 degrees or more. [8].
- the front panel has a transparent adhesive layer and a decorative sheet layer in this order on at least a part of the back side of the transparent resin sheet layer;
- the transparent adhesive is (P) 100 parts by mass of an acrylic polymer having a glass transition temperature of ⁇ 50 to ⁇ 25 ° C., (Q) 0.01 to 3 parts by mass of a silane coupling agent having an epoxy group, (R) 0.01 to 0.9 parts by mass of a compound having two or more epoxy groups in one molecule, and (S) 0.01 to 0.5 parts by mass of an organic polyvalent metal compound, [1]
- the door body according to any one of items [7] to [7]. [9].
- a refrigerator including the door according to any one of items [1] to [9].
- the door body of the present invention is a door body using a resin sheet instead of glass, has a transparent design feeling like glass, and is excellent in scratch resistance.
- the door body according to an aspect of the present invention is a door body using a resin sheet instead of glass, and solves the problem of wet heat peeling, the problem of dents, and the problem of peeling during the filling process. Therefore, the door body of this invention can be used suitably as door bodies, such as household appliances, such as a refrigerator.
- FIG. 1 It is a disassembled perspective view which shows an example of the front panel of the door body of this invention, a frame, and a back panel. It is the elements on larger scale of the cross section of the door body shown in FIG. It is sectional drawing of the door body shown in FIG. It is a perspective view which shows an example of the door body of this invention which has a display in a part of front. It is sectional drawing of the door body shown in FIG. It is the elements on larger scale of the cross section of the door shown in FIG. It is a front view which shows an example of the shape of an adhesive film. It is a figure explaining a curvature radius. It is sectional drawing which shows another example of the door body of this invention.
- the term “sheet” is used as a term including films and plates.
- the term “resin” is used as a term including a resin mixture containing two or more resins and a resin composition containing components other than resins.
- the term “front panel” is used interchangeably or interchangeably with any of a flat panel, a back panel, a side panel, and a bottom panel.
- the term “door” is used interchangeably with or interchangeable with the lid.
- front of article is not intended to be bound by this definition, but generally refers to the face of an article that the user faces when the article is applied to a normally scheduled application. And it is not limited to one surface.
- back side of an article generally refers to the opposite side of the “front side of the article” in this sense.
- front side generally refers to a direction from the “back surface of the article” to the “front surface of the article” (or a position closer to the “front side of the article”).
- the door body of the present invention is a door body that opens and closes the front portion of the article body, and includes a front panel that configures the front surface, a frame that supports at least a part of the outer end portion of the front panel, and a back surface. A rear panel.
- FIG. 1 is an exploded perspective view showing an example of the front panel, the frame body, and the back panel of the door body of the present invention.
- FIG. 2 is a partially enlarged view of the cross section of the door body shown in FIG. 1, and shows the periphery of the support plate 1 b of the frame body 1.
- FIG. 3 is a cross-sectional view of the door shown in FIG.
- the front panel constituting the front surface of the door body includes the hard coat laminated sheet 2, the transparent adhesive layer 3, and the decorative sheet 4 in order from the front surface layer. It consists of the laminated body which has. So-called chamfering such as R surface processing and C surface processing may be performed on the front side corner of the outer end portion of the front panel.
- the frame 1 has an outer peripheral plate 1a and a support plate 1b extending from the outer peripheral plate 1a to the inside of the article in a substantially vertical direction (here, “vertical” is formed by the front side edge of the outer peripheral plate 1a.
- the front panel is supported and fixed at its outer end by the outer peripheral plate 1 a of the frame 1.
- the front panel is bonded to the support plate 1b with an adhesive film 6 (not shown in FIG. 1), thereby supporting and fixing the back side of the outer end portion thereof.
- the decorative sheet 4 and the support plate 1 b are directly bonded by the adhesive film 6.
- the door body formed by the front panel, the frame body 1 and the back panel 5 is usually filled with a heat insulating material 7 (not shown in FIG. 1).
- the door body of the present invention is a door body that opens and closes the front portion of the article body, and the front body constituting the front surface and a frame body that supports at least a part of the outer end portion of the front panel. And a back panel constituting the back surface, and a display on at least a part of the front surface of the door body.
- FIG. 4 is a perspective view showing an example of the door body of the present invention.
- FIG. 5 is a cross-sectional view of the door body shown in FIG.
- FIG. 6 is an enlarged cross-sectional view around the suspension base 5a of the door body shown in FIG.
- an enlarged cross-sectional view around the support plate 1b of the frame 1 appears in the same manner as FIG. 2 in the above-described embodiment.
- the front panel constituting the front surface of the door body includes the hard coat laminated sheet 2 and the transparent adhesive in order from the surface layer on the front side in the part where the display unit 8 is not provided. It consists of a laminated body having the agent layer 3 and the decorative sheet 4.
- the hard coat laminate sheet 2 is configured to serve as a display face plate of the display unit 8 or a protective sheet for the display face plate.
- the hard coat laminate sheet 2 and the display unit 8 are made of a transparent adhesive layer. 3 is pasted and fixed. So-called chamfering such as R surface processing and C surface processing may be performed on the front side corner of the outer end portion of the front panel.
- the frame 1 includes an outer peripheral plate 1a and a support plate 1b extending from the outer peripheral plate 1a to the inside of the door body in a substantially vertical direction.
- the front panel is supported and fixed at its outer end by the outer peripheral plate 1 a of the frame 1.
- the front panel is bonded to the support plate 1b by an adhesive film 6 (not shown in FIGS. 4 and 6), whereby the back side of the outer end portion is supported and fixed.
- the decorative sheet 4 and the support plate 1 b are directly bonded by the adhesive film 6.
- the back panel 5 has a display unit suspension base 5a extending in a substantially vertical direction into the door body.
- the display unit 8 is supported and fixed to the tip of the suspension base 5a so that the image display can be visually recognized from the front side of the door.
- the suspension base 5a has a hollow structure, and the cable 10 connected to the display unit 8 from the outside passes through the inside of the suspension base 5a.
- the display unit 8 and the tip of the suspension base 5a are bonded and fixed by a double-sided adhesive film 9.
- the aspect using a hinge, a screw, etc. may be sufficient as this fixation, and it is not restrict
- the door body formed by the front panel, the frame body 1 and the back panel 5 is usually filled with a heat insulating material 7 (not shown in FIGS. 4 and 6).
- the display unit 8 is not particularly limited, and any display unit can be used.
- the display unit 8 may have a touch panel function or may not have a touch panel function.
- the display unit 8 may not have a display face plate of the unit itself.
- the hard coat laminated sheet 2 functions as a display face plate of the display unit 8.
- the display unit 8 has the display faceplate of the unit itself, the hard coat laminated sheet 2 functions as a protective sheet for the display faceplate.
- the double-sided pressure-sensitive adhesive film 6 may be a hollow rectangular shape punched from the film (left side in FIG. 7) or may be used in combination with an elongated tape-like one (right side in FIG. 7), and is not limited.
- the double-sided pressure-sensitive adhesive film 6 is attached so as to cover at least a part, preferably the whole, of the bonding surface of the support plate 1b with the decorative sheet 4. By sticking so as to cover the whole, durability troubles such as peeling after a long period of time can be prevented.
- the double-sided pressure-sensitive adhesive film 6 is pressed against the decorative sheet 4 so that the front edge of the support plate 1b of the frame 1 that supports the front panel from the back side is also pressed from the front side. It is desirable to prevent the inconvenience (hereinafter sometimes abbreviated as “problem of pressing mark”) that the image can be observed as a mark.
- the heat insulating material is pressed against the support plate 1b in the process of filling the heat insulating material, extending from the front edge of the support plate 1b to the inside of the door body along the back surface of the decorative sheet 4.
- the front edge of the support plate 1b and the decorative sheet 4 are not in direct contact with each other.
- the front edge of the support plate 1b and the front edge of the double-sided adhesive film 6 on the inner side of the article are aligned. It may be. From the viewpoint of workability at the time of manufacturing the door body, it is more preferable to configure the door body to extend as described above.
- the extension length 6a is preferably 1 mm or more, more preferably 3 mm or more.
- the upper limit of the extension length 6a is not particularly limited, but is preferably 15 mm or less, more preferably 10 mm or less from the viewpoint of cost.
- the thickness of the double-sided pressure-sensitive adhesive film 6 is usually 200 ⁇ m or more, preferably 400 ⁇ m or more, more preferably 700 ⁇ m or more, from the viewpoint of interposing between the leading edge of the support plate 1b and the decorative sheet 4 and expressing the function of the cushion. Preferably, it may be 900 ⁇ m or more, and most preferably 1500 ⁇ m or more.
- the upper limit of the thickness is not particularly limited, but is preferably 3000 ⁇ m or less, more preferably 2000 ⁇ m or less from the viewpoint of cost.
- the thickness of the double-sided pressure-sensitive adhesive film 6 is preferably determined in consideration of the bending resistance and elongation resistance of the printed pattern layer of the decorative sheet 4. For example, since the printed pattern layer formed by vapor deposition of metal, metal oxide, or the like has low bending resistance and elongation resistance, the double-sided adhesive film 6 is preferably thick.
- the support plate 1b and the decorative sheet 4 can be bonded with sufficient strength, preferably the support plate 1b and the decorative sheet 4 are bonded with sufficient strength. It is not limited except that it can exhibit a good cushion function, and any adhesive film can be used.
- the double-sided pressure-sensitive adhesive film 6 may be one in which an adhesive layer is formed on both sides of an arbitrary film base material, or one that is formed only with an adhesive layer (one that does not have a film base material). Good.
- the material used for the frame 1 is not particularly limited as long as the material can maintain the strength and rigidity required for the frame of the door.
- the material used for the frame 1 is preferably, for example, acrylonitrile butadiene, from the viewpoint of maintaining the strength and rigidity necessary for the frame of the door body, meeting the demand for weight reduction of the door body, and improving the heat insulation performance.
- -So-called hard plastics such as styrene copolymer resin (ABS resin) and rubber-modified polystyrene (HIPS) can be mentioned.
- ABS resin styrene copolymer resin
- HIPS rubber-modified polystyrene
- the frame body 1 may be integrally formed, and is arbitrarily divided (for example, divided into a plane, a bottom surface, a right side surface, and a left side surface; divided into an outer peripheral plate 1a and a support plate 1b). And may be assembled using any method (eg, fitting, bonding, heat fusing, etc.).
- the length 1d of the support plate 1b of the frame 1 extending from the outer peripheral plate 1a of the frame 1 to the inside of the article in a substantially vertical direction is such that the front panel is placed on the back surface of the front panel via the decorative sheet 4. From the viewpoint of reliably supporting and fixing the outer end portion, it may be usually 10 mm or more, preferably 20 mm or more.
- the upper limit of the length 1d is not particularly limited, but if the support plate 1b is long, a higher level of mechanical strength is required, and therefore it may be preferably 100 mm or less, more preferably 50 mm or less.
- the thickness 1e of the support plate 1b of the frame 1 is usually 1 mm or more, preferably 1.5 mm or more, more preferably 2 mm or more from the viewpoint of withstanding the pressure of the heat insulating material applied to the support plate 1b in the step of filling the heat insulating material. It may be.
- the upper limit of the thickness 1e is not particularly limited, but may be preferably 10 mm or less, more preferably 5 mm or less from the viewpoint of meeting the demand for thin doors.
- the radius of curvature may be usually 0.1 mm or more, preferably 0.2 mm or more from the viewpoint of preventing the occurrence of pressing marks.
- the radius of curvature is usually 10 mm or less, preferably 5 mm or less, more preferably 2 mm or less.
- the material used for the back panel 5 is not particularly limited as long as the material can maintain the strength and rigidity necessary for the back panel of the door, and any material can be used.
- the material used for the back panel 5 is preferably, for example, acrylonitrile butadiene from the viewpoint of maintaining the strength and rigidity required for the back panel of the door body, meeting the demand for weight reduction of the door body, and improving the heat insulation performance.
- -So-called hard plastics such as styrene copolymer resin (ABS resin) and rubber-modified polystyrene (HIPS) can be mentioned.
- ABS resin styrene copolymer resin
- HIPS rubber-modified polystyrene
- the back panel 5 may be integrally formed, may be arbitrarily divided, and may be integrally formed with the frame 1.
- FIG. 9 is a cross-sectional view showing another example of the door body of the present invention.
- the frame 1 and the back panel 5 are assembled after being divided into four parts 1a, 1b, 5c, and 1f (5b).
- the heat insulating material 7 can be filled and formed by, for example, injecting a foaming resin stock solution into the inside of the door formed by the front panel, the frame body 1 and the back panel 5 and foaming.
- the foamable resin is not limited, and any foamable resin can be used.
- the foamable resin include polyurethane resins such as thermosetting polyurethane and thermoplastic polyurethane; polyester resins such as thermosetting polyester and thermoplastic polyester; polystyrene, acrylonitrile / butadiene / styrene copolymer resin ( ABS resins), styrene-ethylene resins such as styrene / ethylene / butadiene / styrene copolymers, styrene / ethylene / propylene / styrene copolymers, and styrene / ethylene / ethylene / propylene / styrene copolymers; polyethylene, polypropylene, and One or a mixture of two or more polyolefin resins such as polymethylpentene and azo compounds such as azodicarboxylic acid amides; nitroso compounds such as
- the heat insulating material 7, the front panel (directly the decorative sheet 4 forming the back of the front panel), the frame 1, and the back panel 5 are bonded with sufficient strength from the viewpoint of the rigidity of the door body. It is preferable that In order to bond the heat insulating material 7 with sufficient strength, the stock solution of the foamable resin is injected into at least a part, preferably all, of the adhesive sheet 4, the frame 1, and the back panel 5 with the heat insulating material 7. It is preferable to form an anchor coat before doing so.
- the bonding portion (the rearmost surface of the decorative sheet 4) of the decorative sheet 4 with the heat insulating material 7 is amorphous or has a low crystalline fragrance. It is preferable to form with a group polyester resin sheet. Even if the anchor coat is not formed, sufficient adhesive strength can be obtained.
- the front panel has been described as being composed of a laminate including the hard coat laminate sheet 2, the transparent adhesive layer 3, and the decorative sheet 4 in order from the front surface layer.
- the front panel of the body is not limited to this.
- the front panel may be composed of a laminate having a hard coat laminate sheet 2, a transparent adhesive layer 3, a decorative sheet 4, and a transparent resin plate in order from the front surface layer. It may consist of a laminate comprising the hard coat laminate sheet 2, the transparent adhesive layer 3, the decorative sheet 4, and the steel plate in order.
- the hard coat laminated sheet contained in the front panel of the hard coat laminated sheet door will be described.
- the hard coat laminated sheet is not limited except that it has high transparency and is not colored for the purpose of using it as a material replacing glass, and any hard coat laminated sheet can be used.
- the hard coat laminated sheet preferably has a first hard coat layer, a second hard coat layer, and a transparent resin sheet layer in order from the front surface layer from the viewpoint of scratch resistance.
- a preferable hard coat laminated sheet will be described.
- the first hard coat usually forms the front surface of the door body of the present invention.
- the first hard coat exhibits good scratch resistance and functions to maintain surface characteristics such as slipperiness even when repeatedly wiped with a handkerchief or the like.
- the first hard coat is preferably formed of a paint that does not contain inorganic particles.
- the first hard coat preferably comprises (A) 100 parts by mass of a polyfunctional (meth) acrylate; (B) 0.01 to 7 parts by mass of a water repellent; and (C) a silane coupling. It is formed from a paint containing 0.01 to 10 parts by mass of the agent and not containing inorganic particles.
- Inorganic particles for example, silica (silicon dioxide); metal oxide particles such as aluminum oxide, zirconia, titania, zinc oxide, germanium oxide, indium oxide, tin oxide, indium tin oxide, antimony oxide, and cerium oxide; fluorination Metal fluoride particles such as magnesium and sodium fluoride; metal sulfide particles; metal nitride particles; and metal particles
- silica silicon dioxide
- metal oxide particles such as aluminum oxide, zirconia, titania, zinc oxide, germanium oxide, indium oxide, tin oxide, indium tin oxide, antimony oxide, and cerium oxide
- fluorination Metal fluoride particles such as magnesium and sodium fluoride
- metal sulfide particles metal nitride particles
- metal particles are highly effective in increasing the hardness of the hard coat.
- the interaction with the resin component such as the component (A) is weak, which causes insufficient scratch resistance. Therefore, in the present invention, the first hard coat that normally forms the surface retains scratch
- does not contain inorganic particles means that it does not contain a significant amount of inorganic particles.
- the significant amount of inorganic particles is usually about 1 part by mass or more with respect to 100 parts by mass of the component (A). Therefore, “does not contain” inorganic particles means that the amount of inorganic particles is usually 0 parts by mass or more, usually less than 1 part by mass, preferably 0.1 parts by mass or less, relative to 100 parts by mass of the component (A). More preferably, it can be paraphrased as 0.01 parts by mass or less.
- the polyfunctional (meth) acrylate of the component (A) is a (meth) acrylate having two or more (meth) acryloyl groups in one molecule. Since the component (A) has two or more (meth) acryloyl groups in one molecule, it functions to form a hard coat by being polymerized and cured by active energy rays such as ultraviolet rays and electron beams.
- polyfunctional (meth) acrylate examples include diethylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, polyethylene glycol di (meth) acrylate, 2, (2) -Bis (4- (meth) acryloyloxypolyethyleneoxyphenyl) propane and (2) -bis (4- (meth) acryloyloxypolypropyleneoxyphenyl) propane (meth) acryloyl group-containing bifunctional reaction Monomer (trimethylolpropane tri (meth) acrylate), trimethylolethane tri (meth) acrylate, and (meth) acryloyl group-containing trifunctional reactive monomer such as pentaerythritol tri (meth) acrylate; (Meth) acryloyl group-containing tetrafunctional reactive monomers such as tall tetra (meth) acrylate; (Met
- (meth) acrylate means acrylate or methacrylate.
- water repellent examples include wax-based water repellents such as paraffin wax, polyethylene wax, and acrylic / ethylene copolymer wax; silicon-based water repellents such as silicon oil, silicon resin, polydimethylsiloxane, and alkylalkoxysilane. Agents; fluorine-containing water repellents such as fluoropolyether water repellents and fluoropolyalkyl water repellents.
- wax-based water repellents such as paraffin wax, polyethylene wax, and acrylic / ethylene copolymer wax
- silicon-based water repellents such as silicon oil, silicon resin, polydimethylsiloxane, and alkylalkoxysilane.
- Agents fluorine-containing water repellents such as fluoropolyether water repellents and fluoropolyalkyl water repellents.
- fluorine-containing water repellents such as fluoropolyether water repellents and fluoropolyalkyl water repellents.
- a fluoropolyether water repellent is preferable from the viewpoint of water repellent performance.
- the component (B) is a water repellent containing a compound containing a (meth) acryloyl group and a fluoropolyether group in the molecule (hereinafter abbreviated as a (meth) acryloyl group-containing fluoropolyether water repellent). ) Is more preferable.
- the chemical bond or interaction between the polyfunctional (meth) acrylate of the above component (A) and the water repellent of the above component (B) is appropriately adjusted, and transparent From the viewpoint of expressing good water repellency while maintaining high properties, it is a mixture of an acryloyl group-containing fluoropolyether water repellent and a methacryloyl group-containing fluoropolyether water repellent.
- the (meth) acryloyl group-containing fluoropolyether water repellent is clearly distinguished from the component (A) in that it contains a fluoropolyether group in the molecule.
- the compound containing two or more (meth) acryloyl groups in one molecule and containing a fluoropolyether group is the above (meth) acryloyl group-containing fluoropolyether water repellent, It is the said component (B). That is, compounds containing a fluoropolyether group are excluded from the definition of the polyfunctional (meth) acrylate of the component (A).
- the component (B) From the viewpoint of preventing troubles such as bleeding out of the component (B) with respect to 100 parts by mass of the polyfunctional (meth) acrylate of the component (A). Usually, it is 7 parts by mass or less, preferably 4 parts by mass or less, more preferably 2 parts by mass or less. On the other hand, from the viewpoint of obtaining the effect of using the water repellent component (B), it is usually 0.01 parts by mass or more, preferably 0.05 parts by mass or more, more preferably 0.1 parts by mass or more.
- the blending amount of the water repellent is usually 0.01 parts by mass or more and 7 parts by mass or less, and preferably 0.01 parts by mass or more and 4 parts by mass or less or 0.01 parts by mass or more and 2 parts by mass or less.
- 0.05 parts by weight or more and 7 parts by weight or less preferably 0.05 parts by weight or more and 4 parts by weight or less, or 0.05 parts by weight or more and 2 parts by weight or less, or preferably 0.1 parts by weight or more. It may be 7 parts by mass or less, or 0.1 parts by mass to 4 parts by mass, or 0.1 parts by mass to 2 parts by mass.
- (C) Silane Coupling Agent The silane coupling agent of component (C) functions to improve the adhesion between the first hard coat and the second hard coat.
- Silane coupling agents include hydrolyzable groups (for example, alkoxy groups such as methoxy group and ethoxy group; acyloxy groups such as acetoxy group; halogen groups such as chloro group) and organic functional groups (for example, amino group, mercapto group).
- hydrolyzable groups for example, alkoxy groups such as methoxy group and ethoxy group; acyloxy groups such as acetoxy group; halogen groups such as chloro group
- organic functional groups for example, amino group, mercapto group.
- organic functional groups for example, amino group, mercapto group.
- silane coupling agent of the component (C) from the viewpoint of adhesion, a silane coupling agent having an amino group (a silane compound having an amino group and a hydrolyzable group), and a mercapto group are used.
- a silane coupling agent (a si
- silane coupling agent having an amino group examples include N-2- (aminoethyl) -3-aminopropylmethyldimethoxysilane, N-2- (aminoethyl) -3-aminopropyltrimethoxysilane, and N-2.
- silane coupling agent having a mercapto group examples include 3-mercaptopropylmethyldimethoxysilane and 3-mercaptopropyltrimethoxysilane.
- silane coupling agent of the component (C) one or a mixture of two or more of these can be used.
- the blending amount of the silane coupling agent of the component (C) is usually 0.01 mass from the viewpoint of surely obtaining an adhesion improving effect with respect to 100 mass parts of the polyfunctional (meth) acrylate of the component (A). Part or more, preferably 0.05 part by weight or more, more preferably 0.1 part by weight or more. On the other hand, from the viewpoint of the pot life of the paint, it may be usually 10 parts by mass or less, preferably 5 parts by mass or less, more preferably 1 part by mass or less.
- the amount of the silane coupling agent is usually 0.01 parts by mass or more and 10 parts by mass or less, preferably 0.01 parts by mass or more and 5 parts by mass or less, or 0.01 parts by mass or more and 1 part by mass or less.
- any of the range groups of the usual or preferred blending amount of the component (C) silane coupling agent mentioned here is a group of usual or preferred range of the blending amount of the water repellent of the component (B) mentioned above. Can be combined with any of these.
- the first hard coat forming coating material has a compound having two or more isocyanate groups (—N ⁇ C ⁇ O) in one molecule and / or photopolymerization from the viewpoint of improving curability by active energy rays. It is preferable to further contain an agent.
- Examples of the compound having two or more isocyanate groups in one molecule include methylene bis-4-cyclohexyl isocyanate; trimethylol propane adduct of tolylene diisocyanate, trimethylol propane adduct of hexamethylene diisocyanate, trimethylol of isophorone diisocyanate.
- Polyisocyanates such as propane adduct, isocyanurate of tolylene diisocyanate, isocyanurate of hexamethylene diisocyanate, isocyanurate of isophorone diisocyanate, biuret of hexamethylene diisocyanate; and urethanes such as block isocyanates of the above polyisocyanates
- a crosslinking agent etc. can be mentioned.
- the compound having two or more isocyanate groups in one molecule one or a mixture of two or more thereof can be used.
- a catalyst such as dibutyltin dilaurate or dibutyltin diethylhexoate may be added as necessary.
- photopolymerization initiator examples include benzophenone, methyl-o-benzoylbenzoate, 4-methylbenzophenone, 4,4′-bis (diethylamino) benzophenone, methyl o-benzoylbenzoate, 4-phenylbenzophenone, 4-benzoyl.
- Benzophenone compounds such as -4'-methyldiphenyl sulfide, 3,3 ', 4,4'-tetra (tert-butylperoxycarbonyl) benzophenone, 2,4,6-trimethylbenzophenone; benzoin, benzoin methyl ether, benzoin Benzoin compounds such as ethyl ether, benzoin isopropyl ether, benzyl methyl ketal; acetophenone, 2,2-dimethoxy-2-phenylacetophenone, 1-hydroxycyclohexyl phenyl ketone Acetophenone compounds; methylanthraquinone, 2-ethylanthraquinone, 2-amylanthraquinone and other anthraquinone compounds; thioxanthone, 2,4-diethylthioxanthone, thioxanthone compounds such as 2,4-diisopropylthioxanthone; alkyl such as
- the first hard coat-forming coating material includes, as desired, an antistatic agent, a surfactant, a leveling agent, a thixotropic agent, a stain-preventing agent, a printability improving agent, an antioxidant, a weathering stabilizer, One or more additives such as a light resistance stabilizer, an ultraviolet absorber, a heat stabilizer, organic fine particles, and an organic colorant can be contained.
- the first hard coat-forming coating material may contain a solvent as desired in order to dilute to a concentration that facilitates coating.
- the solvent is not particularly limited as long as it does not react with the components (A) to (C) and other optional components or catalyze (promote) the self-reaction (including deterioration reaction) of these components. Not limited.
- the solvent include 1-methoxy-2-propanol, ethyl acetate, n-butyl acetate, toluene, methyl ethyl ketone, methyl isobutyl ketone, diacetone alcohol, and acetone.
- these 1 type, or 2 or more types of mixtures can be used.
- the first hard coat forming paint can be obtained by mixing and stirring these components.
- the method for forming the first hard coat using the first hard coat forming paint is not particularly limited, and a known web coating method can be used. Examples of the method include methods such as roll coating, gravure coating, reverse coating, roll brushing, spray coating, air knife coating, dip coating, and die coating.
- the thickness of the first hard coat is preferably 0.5 ⁇ m or more, more preferably 1 ⁇ m or more from the viewpoint of scratch resistance and hardness.
- the thickness of the first hard coat is preferably 5 ⁇ m or less, more preferably 4 ⁇ m or less, and even more preferably 3 ⁇ m or less from the viewpoints of hardness and adhesion to the second hard coat.
- the thickness of the first hard coat may be preferably 0.5 ⁇ m to 5 ⁇ m, more preferably 0.5 ⁇ m to 4 ⁇ m, 0.5 ⁇ m to 3 ⁇ m, 1 ⁇ m to 5 ⁇ m, 1 ⁇ m to 4 ⁇ m, 1 ⁇ m. It may be 3 ⁇ m or less.
- the second hard coat is preferably formed from a paint containing inorganic particles.
- the second hard coat is preferably made of a paint containing (A) 100 parts by mass of a polyfunctional (meth) acrylate; and (D) 50 to 300 parts by mass of inorganic fine particles having an average particle diameter of 1 to 300 nm. Is formed.
- the (A) polyfunctional (meth) acrylate for the second code coat the same ones as described above for the first hard coat forming paint can be used.
- a polyfunctional (meth) acrylate of the said component (A) these 1 type, or 2 or more types of mixtures can be used.
- (D) Inorganic fine particles having an average particle size of 1 to 300 nm
- the component (D) functions to dramatically increase the surface hardness of the hard coat laminated sheet.
- the inorganic fine particles include silica (silicon dioxide); metal oxide fine particles such as aluminum oxide, zirconia, titania, zinc oxide, germanium oxide, indium oxide, tin oxide, indium tin oxide, antimony oxide, and cerium oxide; Examples thereof include metal fluoride fine particles such as magnesium fluoride and sodium fluoride; metal sulfide fine particles; metal nitride fine particles; and metal fine particles. One or a mixture of two or more of these may be used.
- silica fine particles are preferable, and fine particles of silica are more preferable.
- examples of commercially available silica fine particles include Snowtex (trade name) manufactured by Nissan Chemical Industries, Ltd. and Quattron (trade name) manufactured by Fuso Chemical Industries, Ltd.
- the surface of the inorganic fine particles is treated with a silane coupling agent such as vinylsilane or aminosilane; a titanate coupling agent.
- a silane coupling agent such as vinylsilane or aminosilane
- a titanate coupling agent An aluminate coupling agent; an organic compound having a reactive functional group such as an ethylenically unsaturated bond group such as a (meth) acryloyl group, a vinyl group, and an allyl group; and an epoxy group; and a fatty acid, a fatty acid metal salt, etc. It is preferable to use a material treated with a surface treatment agent or the like.
- the inorganic fine particles of the component (D) one kind or a mixture of two or more kinds thereof can be used.
- the average particle size of the inorganic fine particles of the component (D) is usually 300 nm or less, preferably 200 nm or less, more preferably 120 nm or less, from the viewpoint of maintaining the transparency of the hard coat and from the viewpoint of surely obtaining the hardness improvement effect. is there. On the other hand, there is no particular lower limit on the average particle diameter, but normally available inorganic fine particles are fine at most about 1 nm.
- the average particle size of the inorganic fine particles is the particle size distribution curve measured using a laser diffraction / scattering particle size analyzer “MT3200II” (trade name) manufactured by Nikkiso Co., Ltd.
- the particle diameter is such that the cumulative amount from becomes 50% by mass.
- the blending amount of the inorganic fine particles of the component (D) is usually 50 parts by mass or more, preferably 80 parts by mass or more, from the viewpoint of surface hardness with respect to 100 parts by mass of the polyfunctional (meth) acrylate of the component (A). It is. On the other hand, from the viewpoint of transparency, it is usually 300 parts by mass or less, preferably 200 parts by mass or less, more preferably 160 parts by mass or less.
- the compounding amount of the inorganic fine particles is usually 50 parts by mass or more and 300 parts by mass or less, preferably 50 parts by mass or more and 200 parts by mass or less, or 50 parts by mass or more and 160 parts by mass or less, or preferably 80 parts by mass or more and 300 parts by mass or less. Part or less, or 80 parts by mass or more and 200 parts by mass or less, or 80 parts by mass or more and 160 parts by mass or less.
- the second hard coat forming coating material further includes (E) a leveling agent from the viewpoint of making the surface of the second hard coat smooth and facilitating the formation of the first hard coat. Preferably.
- the leveling agent examples include acrylic leveling agents, silicon leveling agents, fluorine leveling agents, silicon / acrylic copolymer leveling agents, fluorine-modified acrylic leveling agents, fluorine-modified silicon leveling agents, and functionalities thereof.
- a leveling agent into which a group for example, alkoxy group such as methoxy group, ethoxy group, acyloxy group, halogen group, amino group, vinyl group, epoxy group, methacryloxy group, acryloxy group, and isocyanate group
- a silicon / acrylic copolymer leveling agent is preferable.
- these 1 type, or 2 or more types of mixtures can be used.
- the blending amount of the leveling agent of the component (E) is such that the surface of the second hard coat is smooth with respect to 100 parts by mass of the polyfunctional (meth) acrylate of the component (A), and the first hard coat Is usually 0.01 parts by mass or more, preferably 0.1 parts by mass or more, more preferably 0.2 parts by mass or more.
- the first hard coat-forming coating material is 1 part by mass or less, preferably 0.6 parts by mass or less, more Preferably it may be 0.4 parts by mass or less.
- the blending amount of the leveling agent is usually 0.01 parts by mass or more and 1 part by mass or less, preferably 0.01 parts by mass or more and 0.6 parts by mass or less or 0.01 parts by mass or more and 0.4 parts by mass or less. Or preferably 0.1 to 1 part by weight, or 0.1 to 0.6 part by weight, or 0.1 to 0.4 part by weight, or preferably 0.2 part by weight. Part or more and 1 part by mass or less, or 0.2 part by mass or more and 0.6 part by mass or less, or 0.2 part by mass or more and 0.4 part by mass or less.
- any of the normal or preferable range group of the component (E) leveling agent mentioned here is any of the normal or preferable range group of the component (D) inorganic fine particles mentioned above. Can be combined.
- the second hard coat-forming coating compound has a compound having two or more isocyanate groups (—N ⁇ C ⁇ O) in one molecule and / or photopolymerization initiation. It is preferable to further contain an agent.
- the same compounds as those described above for the first hard coat forming paint can be used.
- the compound having two or more isocyanate groups in one molecule one or a mixture of two or more thereof can be used.
- the photopolymerization initiator for the second code coat the same ones as described above for the first hard coat forming paint can be used.
- the photopolymerization initiator one or a mixture of two or more of these can be used.
- an antistatic agent for the second hard coat forming coating, an antistatic agent, a surfactant, a thixotropic agent, a stain inhibitor, a printability improver, an antioxidant, a weather resistance stabilizer, and a light resistance stability are optionally added.
- One or more additives such as an agent, an ultraviolet absorber, a heat stabilizer, a colorant, and organic fine particles can be contained.
- the second hard coat-forming coating material may contain a solvent as desired in order to dilute to a concentration that is easy to apply. If the said solvent does not react with the said component (A), the said component (D), and other arbitrary components, or does not catalyze (promote) the self-reaction (including deterioration reaction) of these components, There is no particular limitation.
- the solvent include 1-methoxy-2-propanol, ethyl acetate, n-butyl acetate, toluene, methyl ethyl ketone, methyl isobutyl ketone, diacetone alcohol, and acetone. Of these, 1-methoxy-2-propanol is preferred. As said solvent, these 1 type, or 2 or more types of mixtures can be used.
- the second hard coat forming paint can be obtained by mixing and stirring these components.
- the method for forming the second hard coat using the second hard coat forming paint is not particularly limited, and a known web coating method can be used. Examples of the method include methods such as roll coating, gravure coating, reverse coating, roll brushing, spray coating, air knife coating, dip coating, and die coating.
- the thickness of the second hard coat is preferably 10 ⁇ m or more, more preferably 15 ⁇ m or more, and further preferably 18 ⁇ m or more.
- the thickness of the second hard coat is preferably 30 ⁇ m or less, more preferably 27 ⁇ m or less, and further preferably 25 ⁇ m or less from the viewpoint of impact resistance.
- the thickness of the second hard coat may be preferably 10 ⁇ m to 30 ⁇ m, more preferably 10 ⁇ m to 27 ⁇ m, 10 ⁇ m to 25 ⁇ m, 15 ⁇ m to 30 ⁇ m, 15 ⁇ m to 27 ⁇ m, 15 ⁇ m to 25 ⁇ m, 18 ⁇ m or more.
- any of the preferred range groups for the thickness of the second hard coat referred to herein can be combined with any of the preferred range groups for the thickness of the first hard coat referred to above.
- the transparent resin sheet hard coat laminated sheet has the second hard coat on at least one surface of the transparent resin sheet, and further has the first hard coat thereon.
- the second hard coat may be formed directly on at least one surface of the transparent resin sheet, may be formed via an anchor coat, and may be any transparent layer such as a transparent resin film layer. You may form through a layer.
- the transparent resin sheet is not limited except that it has high transparency and is not colored, and any transparent resin sheet is used. Can do.
- the transparent resin sheet has a total light transmittance (measured using a turbidimeter “NDH2000” (trade name) of Nippon Denshoku Industries Co., Ltd. according to JIS K7361-1: 1997), preferably 80% or more. More preferably, it is 85% or more, more preferably 88% or more, still more preferably 89% or more, and most preferably 90% or more.
- NDH2000 turbidimeter
- the total light transmittance of the transparent resin sheet is 80% or more, the total light transmittance of the hard coat laminated sheet formed by including this becomes easy to be 80% or more. A higher total light transmittance is preferable.
- the transparent resin sheet has a haze (measured according to JIS K7136: 2000 using a turbidimeter “NDH2000” (trade name) manufactured by Nippon Denshoku Industries Co., Ltd.), preferably 5% or less, more preferably 3%. Hereinafter, it is more preferably 2% or less.
- a haze measured according to JIS K7136: 2000 using a turbidimeter “NDH2000” (trade name) manufactured by Nippon Denshoku Industries Co., Ltd.
- NDH2000 turbidimeter
- the transparent resin sheet has a yellowness index (measured using a chromaticity meter “SolidSpec-3700” (trade name) manufactured by Shimadzu Corporation according to JIS K7105: 1981), preferably 3 or less, more preferably 2. Hereinafter, it is more preferably 1 or less.
- the yellowness index of the transparent resin sheet is 3 or less, the yellowness index of the hard coat laminated sheet formed by including this becomes easy to be 3 or less. The lower the yellowness index, the better.
- the thickness of the transparent resin sheet is usually 0.2 mm or more, preferably 0.5 mm or more from the viewpoint of maintaining strength and rigidity necessary as a member that substitutes for glass, and a design having a glass-like depth. More preferably, it may be 0.8 mm or more, and further preferably 1 mm or more. On the other hand, the thickness of the transparent resin sheet is usually 10 mm or less, preferably 6 mm or less, and more preferably 3 mm or less, from the viewpoint of meeting the demand for lighter articles.
- the thickness of the transparent resin sheet may be preferably 0.2 mm or more and 10 mm or less, more preferably 0.2 mm or more and 6 mm or less, 0.2 mm or more and 3 mm or less, 0.5 mm or more and 10 mm or less, 0.5 mm or more. It may be 6 mm or less, 0.5 mm to 3 mm, 0.8 mm to 10 mm, 0.8 mm to 6 mm, 0.8 mm to 3 mm, 1 mm to 10 mm, 1 mm to 6 mm, 1 mm to 3 mm.
- any of the preferable range group of the thickness of the transparent resin sheet mentioned here can be combined with any of the preferable range group of the thickness of the first hard coat and / or the second hard coat mentioned above.
- the tensile elastic modulus of the transparent resin sheet is preferably 1500 MPa or more, more preferably 1800 MPa or more, from the viewpoint of maintaining strength and rigidity necessary for a member that substitutes for glass. There is no particular upper limit on the tensile modulus of elasticity, but since it is a resin sheet, it is at most about 10000 MPa within the normally available range.
- the tensile elastic modulus was measured according to JIS K7127: 1999 under the conditions of specimen type 1B and a tensile speed of 50 mm / min.
- the glass transition temperature of the resin constituting the transparent resin sheet is from the viewpoint of maintaining heat resistance (including both heat resistance required when the article is manufactured and heat resistance required when the article is used).
- the temperature is usually 80 ° C. or higher, preferably 90 ° C. or higher, more preferably 100 ° C. or higher, and still more preferably 110 ° C. or higher.
- the glass transition temperature of the resin constituting the transparent resin sheet is usually 170 ° C. or lower, preferably 160 ° C. or lower, more preferably 155 ° C. or lower, from the viewpoint of processability during the manufacture of the article.
- resin with the highest glass transition temperature satisfy
- the glass transition temperature is a Diamond DSC type differential scanning calorimeter manufactured by PerkinElmer Japan, Inc., and the sample is heated to 200 ° C. at a heating rate of 50 ° C./min, and at 200 ° C. for 10 minutes. After the temperature is maintained, the temperature is lowered to 50 ° C. at a rate of temperature decrease of 20 ° C./min, held at 50 ° C. for 10 minutes, and then heated to 200 ° C. at a rate of temperature increase of 20 ° C./min.
- the glass transition temperature appearing in the curve measured in Fig. 2 is the midpoint glass transition temperature calculated by drawing according to FIG. 2 of ASTM D3418.
- polyester resins such as aromatic polyesters and aliphatic polyesters
- acrylic resins such as acrylic resins
- polycarbonate resins such as polyethylene, polypropylene, and polymethylpentene.
- Cellulosic resin such as cellophane, triacetyl cellulose, diacetyl cellulose, acetyl cellulose butyrate; polystyrene, acrylonitrile / butadiene / styrene copolymer resin (ABS resin), styrene / ethylene / butadiene / styrene copolymer, styrene / ethylene ⁇ Styrene resins such as propylene / styrene copolymers and styrene / ethylene / ethylene / propylene / styrene copolymers; polyvinyl chloride resins; polyvinylidene chloride resins Fluorine-Motokei resins such as polyvinylidene fluoride and the like; polyvinyl alcohol, ethylene vinyl alcohol, polyether ether ketone, nylon, polyamide, polyimide, polyurethane, polyether
- the lamination method is not limited and can be laminated by any method.
- dry lamination or heat lamination is performed; each constituent material is melted by an extruder, and T-die co-processing by a feed block method, a multi-manifold method or a stack plate method is used.
- a method of obtaining a laminated sheet by extrusion an extrusion laminating method in which at least one resin sheet is obtained by an arbitrary method, and then another resin sheet is melt-extruded on the resin sheet; Examples include a method of applying and drying a paint containing a constituent material and a solvent, peeling the formed resin sheet from the film substrate and transferring it onto another resin sheet, and a method of combining two or more of these. be able to.
- embossing may be performed between arbitrary layers as desired in order to enhance the design feeling.
- a printing layer may be provided between arbitrary layers in order to enhance the design feeling if desired.
- the printing layer can be formed by printing an arbitrary pattern using an arbitrary ink and an arbitrary printing machine. At this time, from the viewpoint of providing a design having a glassy depth, it is preferable to provide printing partially or using a transparent ink. Further, the print layer is not limited to 1, and may be 2 or more.
- the transparent resin sheet from the viewpoint of mechanical properties, transparency, and non-colorability, (A1) Acrylic resin sheet; (A2) an aromatic polycarbonate resin sheet; (A3) Polyester resin sheet (excluding resin sheets formed from acrylic resins or aromatic polycarbonate resins); (A4) Any one or two or more laminated sheets of the transparent resin sheets (a1) to (a3) are preferable.
- the (a1) acrylic resin sheet is a resin mainly containing an acrylic resin such as polymethyl methacrylate and polyethyl methacrylate (usually 50% by mass or more, preferably 60% by mass or more, more preferably 70% by mass or more). It is the sheet
- acrylic resin examples include (meth) acrylic acid ester (co) polymers, copolymers of a comonomer group containing (meth) acrylic acid esters, and modified products thereof.
- (meth) acryl means acryl or methacryl.
- the (co) polymer means a polymer or a copolymer.
- Examples of the (meth) acrylate ester (co) polymer include poly (meth) acrylate methyl, poly (meth) acrylate ethyl, poly (meth) acrylate propyl, poly (meth) acrylate butyl, ( And (meth) methyl acrylate / (meth) butyl acrylate copolymer and (meth) ethyl acrylate / (meth) butyl acrylate copolymer.
- Examples of the copolymer of the comonomer group including the (meth) acrylic acid ester include, for example, ethylene / (meth) methyl acrylate copolymer, styrene / (meth) methyl acrylate copolymer, vinylcyclohexane / (meth). Mention may be made, for example, of a methyl acrylate copolymer, a maleic anhydride / (meth) methyl acrylate copolymer, and an N-substituted maleimide / (meth) methyl acrylate copolymer.
- modified substance examples include a polymer in which a lactone ring structure is introduced by an intramolecular cyclization reaction; a polymer in which glutaric anhydride is introduced by an intramolecular cyclization reaction; and an imidizing agent (for example, methyl Examples thereof include a polymer having an imide structure introduced by reacting with amine, cyclohexylamine, ammonia and the like.
- acrylic resin one or a mixture of two or more of these can be used.
- the acrylic resin include core-shell rubber.
- the core-shell rubber is 0 to 40 parts by mass (the acrylic resin 100 to 60 parts by mass), preferably 0 to 30 parts by mass (the acrylic resin By using the resin in an amount of 100 to 70 parts by mass), it is possible to improve the cutting resistance and impact resistance of the (a1) acrylic resin sheet.
- the core shell rubber examples include methacrylic ester / styrene / butadiene rubber graft copolymer, acrylonitrile / styrene / butadiene rubber graft copolymer, acrylonitrile / styrene / ethylene / propylene rubber graft copolymer, and acrylonitrile / styrene / acrylic.
- examples thereof include an acid ester graft copolymer, a methacrylic acid ester / acrylic acid ester rubber graft copolymer, and a methacrylic acid ester / acrylonitrile / acrylic acid ester rubber graft copolymer.
- these 1 type, or 2 or more types of mixtures can be used.
- acrylic resins other than the acrylic resin and the core-shell rubber
- pigments inorganic fillers, organic fillers, resin fillers
- lubricants antioxidants, and weather resistance stability.
- additives such as an agent, a heat stabilizer, a release agent, an antistatic agent, a nucleating agent, and a surfactant.
- the amount of these optional components is usually 25 parts by mass or less, preferably about 0.01 to 10 parts by mass, when the total of the acrylic resin and the core-shell rubber is 100 parts by mass. is there.
- the (a2) aromatic polycarbonate-based resin sheet is a sheet formed of a resin mainly containing an aromatic polycarbonate-based resin (usually 50% by mass or more, preferably 70% by mass or more, more preferably 90% by mass or more). .
- aromatic polycarbonate resin examples include interfacial weight between an aromatic dihydroxy compound such as bisphenol A, dimethylbisphenol A, 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane and phosgene. Polymer obtained by legal method; ester of aromatic dihydroxy compound such as bisphenol A, dimethyl bisphenol A, 1,1-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane and diester carbonate such as diphenyl carbonate Examples thereof include a polymer obtained by an exchange reaction. As said aromatic polycarbonate-type resin, these 1 type, or 2 or more types of mixtures can be used.
- the aromatic polycarbonate resin include core-shell rubber.
- the core shell rubber is 0 to 30 parts by mass (100 to 70 parts by mass of the aromatic polycarbonate resin), preferably 0 to 10 parts by mass.
- the cutting resistance and impact resistance of the (a2) aromatic polycarbonate resin sheet can be improved.
- the core shell rubber examples include methacrylic ester / styrene / butadiene rubber graft copolymer, acrylonitrile / styrene / butadiene rubber graft copolymer, acrylonitrile / styrene / ethylene / propylene rubber graft copolymer, and acrylonitrile / styrene / acrylic.
- examples thereof include an acid ester graft copolymer, a methacrylic acid ester / acrylic acid ester rubber graft copolymer, and a methacrylic acid ester / acrylonitrile / acrylic acid ester rubber graft copolymer.
- these 1 type, or 2 or more types of mixtures can be used.
- the aromatic polycarbonate-based resin may be a thermoplastic resin other than the aromatic polycarbonate-based resin or the core-shell rubber; a pigment, an inorganic filler, an organic filler, a resin filler; Further, additives such as an antioxidant, a weather resistance stabilizer, a heat stabilizer, a release agent, an antistatic agent, and a surfactant can be further included.
- the blending amount of these optional components may usually be about 0.01 to 10 parts by mass when the total of the aromatic polycarbonate resin and the core-shell rubber is 100 parts by mass.
- the (a3) polyester resin sheet is a sheet formed of a resin mainly containing a polyester resin such as polyethylene terephthalate (usually 50 mass% or more, preferably 80 mass% or more, more preferably 90 mass% or more).
- a polyester resin such as polyethylene terephthalate (usually 50 mass% or more, preferably 80 mass% or more, more preferably 90 mass% or more).
- This polyester resin sheet includes an unstretched sheet, a uniaxially stretched sheet, and a biaxially stretched sheet. Moreover, these 1 type, or 2 or more types of laminated sheets are included.
- the (a3) polyester-based resin sheet preferably contains mainly an amorphous or low-crystalline aromatic polyester-based resin (usually 50% by mass or more, preferably 80% by mass or more, more preferably 90% by mass or more). It is a sheet formed from a resin.
- amorphous or low crystalline aromatic polyester resin examples include aromatic polyvalent carboxylic acid components such as terephthalic acid, isophthalic acid, orthophthalic acid, naphthalenedicarboxylic acid, ethylene glycol, diethylene glycol, neopentyl glycol, 1 , 2-butanediol, 1,3-butanediol, 1,4-butanediol, 1,5-pentanediol, 3-methyl-1,5-pentanediol, 2-methyl-1,3-propanediol, Mention may be made of polyester copolymers with polyhydric alcohol components such as 1,4-cyclohexanedimethanol.
- aromatic polyvalent carboxylic acid components such as terephthalic acid, isophthalic acid, orthophthalic acid, naphthalenedicarboxylic acid, ethylene glycol, diethylene glycol, neopentyl glycol, 1 , 2-butanediol, 1,
- amorphous or low-crystalline aromatic polyester resin examples include, for example, 45 to 50 mol% terephthalic acid and 30 to 40 mol% ethylene glycol, 1,4-cyclohexanedimethanol, where the total amount of monomers is 100 mol%.
- Glycol-modified polyethylene terephthalate containing 10-20 mol%; glycol-modified polycyclohexyl containing 45-50 mol% terephthalic acid, 16-21 mol% ethylene glycol and 29-34 mol% 1,4-cyclohexanedimethanol Range methylene terephthalate (PCTG); acid-modified polycyclohexylene dimethylene terephthalate (PCTA) containing 25 to 49.5 mol% terephthalic acid, 0.5 to 25 mol% isophthalic acid and 50 mol% 1,4-cyclohexanedimethanol Terephthalate Acid and glycol modifications containing 30-45 mol% acid, 5-20 mol% isophthalic acid, 35-48 mol% ethylene glycol, 2-15 mol% neopentyl glycol, less than 1 mol% diethylene glycol, and less than 1 mol% bisphenol A Polyethylene terephthalate; and 45-50 mol% terephthalic acid
- the polyester-based resin can contain other components as desired, as long as the object of the present invention is not adversely affected.
- Optional components that can be included include thermoplastic resins other than polyester resins; pigments, inorganic fillers, organic fillers, resin fillers; lubricants, antioxidants, weathering stabilizers, thermal stabilizers, mold release agents, antistatic agents, And additives, such as surfactant, can be mentioned.
- the amount of these optional components may be usually 25 parts by mass or less, preferably about 0.01 to 10 parts by mass, with 100 parts by mass of the polyester resin.
- Certain optional components that can be included in the polyester resin include core-shell rubber. By using the core-shell rubber, the impact resistance of the (a3) polyester resin sheet can be improved.
- the core shell rubber examples include methacrylic ester / styrene / butadiene rubber graft copolymer, acrylonitrile / styrene / butadiene rubber graft copolymer, acrylonitrile / styrene / ethylene / propylene rubber graft copolymer, and acrylonitrile / styrene / acrylic.
- examples thereof include an acid ester graft copolymer, a methacrylic acid ester / acrylic acid ester rubber graft copolymer, and a methacrylic acid ester / acrylonitrile / acrylic acid ester rubber graft copolymer.
- these 1 type, or 2 or more types of mixtures can be used.
- the blending amount of the core shell rubber is preferably 0.5 parts by mass or more in order to improve impact resistance when the polyester resin is 100 parts by mass.
- the blending amount of the core shell rubber is preferably 5 parts by mass or less, more preferably 3 parts by mass or less in order to maintain transparency.
- any one or two or more laminated sheets of the above-mentioned transparent resin sheets (a1) to (a3) are optional coextrusion apparatuses such as a feed block system, a multi-manifold system, and a stack plate system. And coextruding into a desired layer structure; using any film forming apparatus, any one or more of the transparent resin sheets (a1) to (a3) are used. After being obtained, these are heat laminated or dry laminated so as to have a desired layer structure; or any one of the transparent resin sheets (a1) to (a3) using any film forming apparatus. Then, the sheet can be obtained by extrusion lamination so that the sheet has a desired layer structure.
- the transparent resin sheet may be provided with a printing layer on the second hard coat forming surface or on the surface opposite to the second hard coat forming surface, if desired.
- the printed layer is provided to impart high designability to an article produced using the transparent resin laminate of the present invention.
- the printing layer can be formed by printing an arbitrary pattern using an arbitrary ink and an arbitrary printing machine. A detailed method of forming the print layer will be described later.
- the hard coat laminated sheet may have the first hard coat, the second hard coat, the layer of the transparent resin sheet, and the third hard coat in order from the front surface layer.
- the third hard coat By forming the third hard coat, it becomes easy to impart characteristics suitable for the back surface.
- anchor coating agent for forming the anchor coat known ones such as polyester, acrylic, polyurethane, acrylic urethane, and polyester urethane can be used.
- the method for forming the anchor coat using the anchor coat agent is not particularly limited, and a known web coating method can be used. Specific examples include roll coating, gravure coating, reverse coating, roll brushing, spray coating, air knife coating, dip coating, and die coating.
- the thickness of the anchor coat is usually about 0.1 to 5 ⁇ m, preferably 0.5 to 2 ⁇ m.
- the hard coat laminated sheet has a total light transmittance (measured using a turbidimeter “NDH2000” (trade name) of Nippon Denshoku Industries Co., Ltd. according to JIS K7361-1: 1997), preferably 80% or more. More preferably, it is 85% or more, more preferably 88% or more, still more preferably 89% or more, and most preferably 90% or more. A higher total light transmittance is preferable.
- the hard coat laminated sheet has a haze (measured according to JIS K7136: 2000 using a turbidimeter “NDH2000 (trade name)” manufactured by Nippon Denshoku Industries Co., Ltd.), preferably 5% or less, more preferably 3%. Hereinafter, it is more preferably 2% or less. The lower the haze, the better.
- the hard coat laminated sheet has a yellowness index (measured using a chromaticity meter “SolidSpec-3700 (trade name)” manufactured by Shimadzu Corporation according to JIS K7105: 1981), preferably 3 or less, more preferably 2. Hereinafter, it is more preferably 1 or less. The lower the yellowness index, the better.
- the hard coat laminated sheet of the present invention preferably has a total light transmittance of 80% or more, a haze of 5% or less, and a yellowness index of 3 or less.
- the hard coat laminate sheet of the present invention has a total light transmittance of 80% or more and a haze of 3% or less, a total light transmittance of 80% or more, and a haze of 2% or less.
- the total light transmittance is 85% or more and the haze is 5% or less, the total light transmittance is 85% or more and the haze is 3% or less, and the total light transmittance is 85% or more, haze of 2% or less, total light transmittance of 88% or more, haze of 5% or less, total light transmittance of 88% or more, and haze 3% or less, the total light transmittance is 88% or more, and the haze is 2% or less, the total light transmittance is 89% or more, and the haze is 5% or less, Total light transmittance is 89% or more and haze is 3% or more
- the total light transmittance is 89% or more and the haze is 2% or less, the total light transmittance is 90% or more and the haze is 5% or less, the total light transmittance.
- the yellowness index is 3 or less, 2 or less, or 1 or less in addition to each of the combination groups of the preferable ranges of the total light transmittance and haze.
- each of the combinations of preferable ranges of the total light transmittance, haze and yellowness index is applied to any of the first hard coat, the second hard coat and the transparent resin sheet exemplified above. sell.
- the water contact angle on the surface of the first hard coat is preferably 100 degrees or more, more preferably 105 degrees or more.
- the first hard coat usually forms the front surface of the door body of the present invention.
- the hard coat laminate sheet has fingerprint resistance (hardness of dirt such as fingerprints and ease of wiping off dirt such as fingerprints). Become good.
- a higher water contact angle is preferred, and there is no particular upper limit for the water contact angle. However, about 120 degrees is usually sufficient from the viewpoint of fingerprint resistance.
- the water contact angle is a value measured according to the following test (iv).
- the hard coat laminated sheet preferably has a water contact angle of 100 degrees or more after 20,000 cotton swabs on the surface of the first hard coat. More preferably, the water contact angle after reciprocating 25,000 cotton swabs is 100 degrees or more.
- the surface characteristics of the hard coat laminated sheet such as fingerprint resistance can be maintained even if it is repeatedly wiped with a handkerchief or the like.
- the water contact angle after cotton wiping is a value measured according to the following test (v).
- the water contact angle on the surface of the first hard coat is 100 degrees or more, and the water contact angle after 20,000 swabs on the first hard coat surface is 100 degrees or more. Is preferred.
- the hard coat laminate sheet of the present invention has a water contact angle of 105 ° or more on the first hard coat surface, and a water contact angle of 100 ° or more after 20,000 swabs on the first hard coat surface.
- the water contact angle on the surface of the first hard coat is 100 degrees or more, and the water contact angle after the 25,000 reciprocations on the surface of the first hard coat is 100 degrees or more, It is also preferable that the water contact angle on the surface of the coat is 105 degrees or more, and the water contact angle after reciprocating 25,000 times on the first hard coat surface is 100 degrees or more.
- any of the preferable range group of the total light transmittance and / or haze and / or yellowness index of the hard coat laminated sheet referred to above is a preferable range of the water contact angle on the surface of the first hard coat referred to here.
- the hard coat laminated sheet has a pencil hardness on the surface of the first hard coat (measured using a pencil “Uni (trade name)” manufactured by Mitsubishi Pencil Co., Ltd. under a load of 750 g in accordance with JIS K5600-5-4). Preferably it is 5H or more, More preferably, it is 6H or more, More preferably, it is 7H or more. When the pencil hardness is 5H or more, the hard coat laminated sheet has particularly good scratch resistance. Higher pencil hardness is preferable.
- the production method of the hard coat laminated sheet is not particularly limited, and can be produced by any method.
- a preferable production method from the viewpoint of adhesion between the first hard coat and the second hard coat, for example, (1) A step of forming a wet paint film of the second hard coat forming paint on the transparent resin sheet; (2) The active light beam is applied to the wet paint film of the second hard coat forming paint with an integrated light amount of 1 to 230 mJ / cm 2 , preferably 5 to 200 mJ / cm 2 , more preferably 10 to 160 mJ / cm 2.
- the wet coating film of the second hard coat forming coating is applied to a dry-touch coating film.
- the wet coating film of the forming paint is preheated to a temperature of 30 to 100 ° C., preferably 40 to 85 ° C., more preferably 50 to 75 ° C., and the active energy ray has an integrated light quantity of 240 to 10000 mJ / cm 2 , preferably Can include 320 to 5000 mJ / cm 2 , more preferably 360 to 2000 mJ / cm 2 .
- the method for forming the wet coating film of the second hard coat forming paint is not particularly limited, and a known web coating method can be used.
- the method include methods such as roll coating, gravure coating, reverse coating, roll brushing, spray coating, air knife coating, dip coating, and die coating.
- the wet coating film of the second hard coat forming paint formed in the step (1) becomes dry to the touch or has no tackiness in the step (2) and directly touches the web device. Will no longer cause handling problems such as sticking. Therefore, in the next step (3), a wet paint film of the first hard coat forming paint can be formed on the touch-dried paint film of the second hard coat forming paint. It becomes like this.
- the coating film is in a dry-to-touch state (without tackiness)” means that there is no handling problem even if the coating film directly touches the web device. is there.
- Irradiation with active energy rays in the step (2) depends on the characteristics of the paint used as the second hard coat-forming paint, but from the viewpoint of ensuring that the paint film is dry to the touch, the integrated light quantity is usually 1 J. / cm 2 or more, preferably 5 mJ / cm 2 or more, more preferably 10 mJ / cm 2 or more, more preferably 20 mJ / cm 2 or more, and most preferably carried out such that 30 mJ / cm 2 or more.
- the adhesion standpoint of the first hard coating and the second hard coating integrated light quantity usually 230 mJ / cm 2 or less, preferably 200 mJ / cm 2 or less, more preferably 160 mJ / cm 2 or less, more preferably Is irradiated so as to be 120 mJ / cm 2 or less, and most preferably 100 mJ / cm 2 or less.
- the time required for the web to pass from the inlet to the outlet in the drying furnace set at a temperature of about 23 to 150 ° C., preferably 50 to 120 ° C. is about 0.5 to 10 minutes. It can be carried out by passing at a line speed of preferably 1 to 5 minutes.
- the wet coating film of the second hard coat forming paint may be preheated to a temperature of 40 to 120 ° C., preferably a temperature of 70 to 100 ° C.
- the coated film can be surely brought into a dry-to-touch state.
- the preheating method is not particularly limited, and can be performed by any method. An example of a specific method will be described later in the description of step (4) below.
- the method for forming the wet coating film of the first hard coat forming paint is not particularly limited, and a known web coating method can be used. Examples of the method include methods such as roll coating, gravure coating, reverse coating, roll brushing, spray coating, air knife coating, dip coating, and die coating.
- the wet coating film of the first hard coat forming paint formed in the step (3) is completely cured in the step (4).
- the coating film of the second hard coat forming paint is also completely cured.
- the irradiation with active energy rays in the step (4) is usually performed with an integrated light amount of 240 mJ / cm 2 or more, preferably from the viewpoint of completely curing the coating film and the adhesion of the first hard coat and the second hard coat.
- the 320 mJ / cm 2 or more more preferably carried out so that 360 mJ / cm 2 or more.
- the integrated light quantity is usually 10,000 mJ / cm 2 or less, preferably 5000 mJ / cm 2 or less, more preferably 2000 mJ /. It is performed so that it becomes cm 2 or less.
- the time required for the web to pass from the inlet to the outlet in the drying furnace set at a temperature of about 23 to 150 ° C., preferably 50 to 120 ° C. is about 0.5 to 10 minutes. It can be carried out by passing at a line speed of preferably 1 to 5 minutes.
- the wet coating film of the first hard coat forming paint has characteristics of the first hard coat forming paint and the second hard coat forming paint. From the viewpoint of obtaining good interlayer adhesion strength even if they differ greatly, it is preferable to preheat to a temperature of 30 to 100 ° C., preferably a temperature of 40 to 85 ° C., more preferably a temperature of 50 to 75 ° C.
- the preheating method is not particularly limited, and can be performed by any method. For example, as shown in FIG.
- Examples include a method of surrounding the irradiation apparatus as an irradiation furnace and controlling the temperature in the irradiation furnace to a predetermined temperature; and combinations thereof.
- an aging process may be performed.
- the properties of the hard coat laminated sheet can be stabilized by the aging treatment.
- the transparent pressure-sensitive adhesive layer is a layer mainly containing a pressure-sensitive adhesive having excellent transparency (usually 50% by mass or more, preferably 80% by mass or more, more preferably 90% by mass or more) from the viewpoint of design.
- the transparent pressure-sensitive adhesive layer is preferably not transparent when the door body is produced but also when the door body is used as an article such as a refrigerator, and is preferably transparent.
- the “transparent adhesive” means that the visible light transmittance is usually 50% or more, preferably 70% or more, more preferably 80% or more, still more preferably 85% or more, and most preferably 90% or more.
- the visible light transmittance is a transmission spectrum at a wavelength of 380 to 780 nanometers of an adhesive using a spectrophotometer “SolidSpec-3700” (trade name) manufactured by Shimadzu Corporation and a quartz cell having an optical path length of 10 mm. This is a value calculated as a ratio of the integral area of the transmission spectrum of the pressure-sensitive adhesive to the integral area of the transmission spectrum when it is assumed that the transmittance in the entire range of wavelengths from 380 to 780 nanometers is 100%.
- the measurement is usually performed in a standard environment at a temperature of 25 ° C. and a relative humidity of 50%.
- the term “transparent adhesive” is used as a term including a transparent adhesive.
- the “transparent adhesive” here is sufficient by passing through a curing / solidification step in addition to pressing the adherend and a chemical that exhibits sufficient binding only by pressing the adherend. And chemicals that exhibit excellent binding properties.
- the transparent adhesive used for forming the transparent adhesive layer is not limited except that it has sufficient adhesive strength and is transparent, and any adhesive can be used.
- the transparent adhesive include acrylic adhesives, urethane adhesives, and silicon adhesives. As said transparent adhesive, these 1 type, or 2 or more types of mixtures can be used.
- the transparent adhesive may further contain an optional component other than the adhesive component as desired, as long as the object of the present invention is not adversely affected.
- the optional component include a photopolymerization initiator, a compound having two or more isocyanate groups in a molecule, an antistatic agent, a surfactant, a leveling agent, a thixotropic agent, an antifouling agent, and a printability improving agent.
- additives such as antioxidants, weather resistance stabilizers, light resistance stabilizers, ultraviolet absorbers, heat stabilizers, pigments and fillers.
- the amount of the optional component is usually about 0.01 to 10 parts by mass with 100 parts by mass of the adhesive component.
- the thickness of the transparent adhesive layer is not particularly limited, but may be usually 15 ⁇ m or more, preferably 20 ⁇ m or more from the viewpoint of adhesive strength. Moreover, from a viewpoint of thickness reduction, it may be 100 micrometers or less normally, Preferably it may be 60 micrometers or less.
- the thickness of the transparent pressure-sensitive adhesive layer is usually 15 ⁇ m to 100 ⁇ m, preferably 15 ⁇ m to 60 ⁇ m, 20 ⁇ m to 100 ⁇ m, or 20 ⁇ m to 60 ⁇ m.
- the transparent adhesive As the transparent adhesive, (P) 100 parts by mass of an acrylic polymer having a glass transition temperature of ⁇ 50 to ⁇ 25 ° C .; (Q) 0.01 to 3 parts by mass of a silane coupling agent having an epoxy group; (R) A pressure-sensitive adhesive containing 0.01 to 0.9 parts by mass of a compound having two or more epoxy groups in one molecule; and (S) 0.01 to 0.5 parts by mass of an organic polyvalent metal compound is preferable.
- an adhesive it becomes possible to easily obtain a door body in which the problem of wet heat peeling, the problem of dents, and the problem of peeling during the filling process are solved.
- (P) Acrylic polymer having a glass transition temperature of ⁇ 50 to ⁇ 25 ° C.
- the acrylic polymer of component (P) exhibits adhesiveness as the main component of the pressure-sensitive adhesive, and the components (Q) to (S ), And other optional components.
- the glass transition temperature of the acrylic polymer of the component (P) is usually ⁇ 50 ° C. or higher, preferably ⁇ 40 ° C. or higher, from the viewpoint of eliminating the above-mentioned inconvenience related to the dent.
- the glass transition temperature of the acrylic polymer of the component (P) is usually ⁇ 25 ° C. or less, preferably ⁇ 30 ° C. or less, from the viewpoint of improving the tack property (initial adhesion).
- the glass transition temperature of the acrylic polymer of component (P) is usually ⁇ 50 ° C. or higher and ⁇ 25 ° C. or lower, preferably ⁇ 50 ° C. or higher and ⁇ 30 ° C. or lower, ⁇ 40 ° C. or higher and ⁇ 25 ° C. or lower, Or it may be -40 ° C or higher and -30 ° C or lower.
- the glass transition temperature of the acrylic polymer of the component (P) is a calculated value obtained by a conventional method, that is, a value obtained from the following equation (Fox equation).
- 1 / (Tg + 273) W 1 / (Tg 1 +273) + W 2 / (Tg 2 +273) + W 3 / (Tg 3 +273) +... + W n / (Tg n +273)
- Tg is a glass transition temperature (° C.) of a polymer composed of n types of monomers, and W 1 , W 2 , W 3 ... W n are each in the monomer composition.
- Tg 1, Tg 2, Tg 3 ⁇ Tg n is the glass transition temperature of the homopolymer of each monomer (° C.).
- Tg of each homopolymer for example, a numerical value described in a polymer handbook or the like can be used.
- the acrylic polymer of component (P) is not limited except that the glass transition temperature is ⁇ 50 to ⁇ 25 ° C., and any acrylic polymer can be used.
- the molecular weight of the acrylic polymer of component (P) is not particularly limited as long as the glass transition temperature is ⁇ 50 to ⁇ 25 ° C.
- the acrylic polymer include one or a mixture of two or more of a (meth) acrylic acid alkyl ester monomer, a carboxyl group-containing monomer, an epoxy group-containing monomer, and a hydroxyl group-containing (meth) acrylic acid ester monomer. Examples thereof include a polymer or a copolymer as a monomer.
- (meth) acrylic acid means acrylic acid or methacrylic acid.
- Examples of the (meth) acrylic acid alkyl ester monomer include, for example, methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, pentyl (meth) acrylate, ( Hexyl (meth) acrylate, cyclohexyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate, decyl (meth) acrylate, dodecyl (meth) acrylate, myristyl (meth) acrylate, Mention may be made of palmityl (meth) acrylate and stearyl (meth) acrylate.
- carboxyl group-containing monomer examples include acrylic acid, methacrylic acid, itaconic acid, and ⁇ -carboxyethyl (meth) acrylate.
- epoxy group-containing monomer examples include glycidyl (meth) acrylate and 4-hydroxybutyl (meth) acrylate glycidyl ether.
- hydroxyl group-containing (meth) acrylic acid ester monomer examples include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, and (meth) acrylic acid.
- examples thereof include 2-hydroxybutyl, 3-hydroxybutyl (meth) acrylate, and 4-hydroxybutyl (meth) acrylate.
- Examples of commercially available products include “Acrybase LKG-1010” (trade name): glass transition temperature of ⁇ 34 ° C .; “Acrybase LKG-1012” (trade name): glass transition temperature of ⁇ 35 ° C .; Base LKG-1001 “(trade name): glass transition temperature -40 ° C; and” Acrybase LKG-1007 “(trade name): glass transition temperature-44 ° C.
- the acrylic polymer of the component (P) one or a mixture of two or more of these can be used.
- the glass transition temperature as the mixture may be in the above range.
- the glass transition temperature of the component having the highest glass transition temperature is preferably ⁇ 25 ° C. or lower, and the glass transition temperature of the component having the lowest glass transition temperature is ⁇ 50 ° C. or higher. It should just become.
- Silane coupling agent having an epoxy group A silane coupling agent is a hydrolyzable group (for example, an alkoxy group such as a methoxy group or an ethoxy group; an acyloxy group such as an acetoxy group; a halogen group such as a chloro group); And a silane compound having at least two different reactive groups such as an organic functional group (for example, amino group, vinyl group, epoxy group, methacryloxy group, acryloxy group, isocyanate group).
- a silane coupling agent having at least an epoxy group as an organic functional group is used.
- the silane coupling agent of the component (Q) can have a chemical bond or a strong interaction with the component (P) or the component (R) by having an epoxy group.
- the component (Q) silane coupling agent may have an organic functional group other than an epoxy group as long as the chemical bond and interaction are not inhibited. Due to the action of the epoxy group, an appropriate hardness is imparted to the pressure-sensitive adhesive, and the problem of dents can be solved.
- the silane coupling agent of the above component (Q) has a hydrolyzable group, so that it has a hardness sufficient to solve the problem of dents, but has a problem of peeling during the filling process. Can be solved.
- the organic functional group is an epoxy group, the silane coupling agent of the said component (Q) is excellent in miscibility with the said component (R) or the said component (S).
- silane coupling agent having an epoxy group examples include 2- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3 -Glycidoxypropylmethyldiethoxysilane, 3-glycidoxypropyltriethoxysilane and the like.
- silane coupling agent of the said component (Q) these 1 type, or 2 or more types of mixtures can be used.
- the blending amount of the silane coupling agent of the component (Q) is usually 0.01 with respect to 100 parts by mass of the component (P) from the viewpoint of solving the problem of peeling during the filling process and the problem of dents. It may be at least part by mass, preferably at least 0.03 part by mass.
- the compounding amount of the silane coupling agent of the component (Q) is usually 3 parts by mass or less, preferably 1.5 parts by mass or less, from the viewpoint of improving heat cycle resistance and alkali resistance.
- the compounding amount of the component (Q) silane coupling agent is usually 0.01 parts by mass or more and 3 parts by mass or less, preferably 0.01 parts by mass or more and 1. It may be 5 parts by mass or less, 0.03 parts by mass to 3 parts by mass, or 0.03 parts by mass to 1.5 parts by mass.
- the epoxy group-containing compound of the component (R) has two or more epoxy groups in one molecule, and the components (P) and (Q) Chemical bond or strong interaction. Thereby, moderate hardness is provided to an adhesive and the problem of a dent can be solved. Moreover, the epoxy group-containing compound of the component (R) exhibits specific high compatibility with the component (S), and can maintain adhesive strength and transparency even in a high temperature and high humidity environment.
- the epoxy group-containing compound of the component (R) is clearly distinguished from the component (Q) in that it does not have a hydrolyzable group.
- the silane compound having two or more epoxy groups in one molecule and having a hydrolyzable group is the component (Q).
- the epoxy group-containing compound of component (R) is not particularly limited as long as it has two or more epoxy groups in one molecule and does not have a hydrolyzable group.
- Examples of the epoxy group-containing compound of component (R) include 1,3-bis (N, N′-diglycidylaminomethyl) cyclohexane, N, N, N, N′-tetraglycidyl-m-xylenediamine, Diglycidyl aniline, diglycidyl amine, bisphenol A-epichlorohydrin type epoxy resin, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, glycerin diglycidyl ether, glycerin triglycidyl ether, 1,6-hexanediol diglycidyl ether, and A trimethylol propane triglycidyl ether etc. can be mentioned.
- these 1 type, or 2 or more types of mixtures can be used.
- the compounding amount of the epoxy group-containing compound of the component (R) is usually 0.01 with respect to 100 parts by mass of the component (P) from the viewpoint of solving the problem of peeling during the filling process and the problem of dents. It may be at least part by mass, preferably at least 0.03 part by mass, more preferably at least 0.04 part by mass.
- the compounding amount of the epoxy group-containing compound of the component (R) is usually 0.9 parts by mass or less, preferably 0.6 parts by mass or less, more preferably 0.5 from the viewpoint of improving heat resistant adhesion. It may be below mass parts.
- the compounding amount of the epoxy group-containing compound of the component (R) is preferably 0.3 parts by mass or less, more preferably 0.2 parts by mass or less, from the viewpoint of anchoring properties to the adherend. .
- the compounding amount of the epoxy group-containing compound of component (R) is preferably 0.3 parts by mass or more, more preferably 0.4 parts by mass or more from the viewpoint of preventing cohesive failure of the adhesive layer during heat cycle. It may be.
- the compounding amount of the component (R) epoxy group-containing compound is usually 0.01 parts by mass or more and 0.9 parts by mass or less, alternatively 100 parts by mass of the component (P).
- Parts by mass, 0.03 parts by mass to 0.5 parts by mass, 0.04 parts by mass to 0.9 parts by mass, 0.04 parts by mass to 0.6 parts by mass, 0.04 parts by mass to 0 parts by mass It may be 5 parts by mass or less.
- (S) Organic polyvalent metal compound
- the organic polyvalent metal compound of component (S) functions to assist the chemical reaction and interaction between component (R) and component (P) or component (Q). To do. Thereby, moderate hardness is given to an adhesive and the problem of a dent can be solved.
- the organic polyvalent metal compound of the said component (S) shows specific high compatibility with the said component (R), and can maintain adhesive strength and transparency also in a high-temperature, high-humidity environment.
- organic polyvalent metal compound of the component (S) examples include polyvalent metals such as aluminum, zirconium, and titanium, and organic compounds such as alkyl esters, alcohol compounds, carboxylic acid compounds, ether compounds, and ketone compounds. And those having a covalent bond or a coordinate bond.
- organoaluminum compound that can be used as the organic polyvalent metal compound of the component (S) include aluminum trisacetylacetonate, aluminum ethylacetoacetate / diisopropylate, aluminum bisethylacetoacetate / monoacetylacetonate, Examples thereof include aluminum trisethyl acetoacetate, aluminum ethylate, aluminum isopropylate, aluminum diisopropylate monosecondary butyrate, and aluminum secondary butyrate.
- Examples of the organic zirconium compound that can be used as the organic polyvalent metal compound of the component (S) include n-propyl zirconate, n-butyl zirconate, zirconium tetraacetylacetonate, zirconium monoacetylacetonate, and zirconium. Examples include ethyl acetoacetate.
- organic titanium compound that can be used as the organic polyvalent metal compound of the component (S) include tetra-i-propoxy titanium, tetra-n-butoxy titanium, tetrakis (2-ethylhexyloxy) titanium, and titanium-i.
- -Propoxyoctylene glycolate di-i-propoxy bis (acetylacetonato) titanium, propanedioxytitanium bis (ethyl acetate), propanedioxytitanium bis (ethylacetoacetate), tri-n-butoxytitanium monostearate, Di-i-propoxytitanium distearate, titanium stearate, di-i-propoxytitanium diisostearate, (2-n-butoxycarbonylbenzoyloxy) tributoxytitanium, and di-n-butoxy-bis (triethanol) Ami G) can be mentioned, such as titanium.
- organic polyvalent metal compound of the above component (S) one or a mixture of two or more of these can be used.
- the compounding amount of the organic polyvalent metal compound of the component (S) is usually 0.01 parts by mass or more, preferably from the viewpoint of obtaining the effect of the component (S) with respect to 100 parts by mass of the component (P). It may be 0.03 parts by mass or more.
- the compounding amount of the organic polyvalent metal compound as the component (S) is usually 0.5 parts by mass or less, preferably 0.3 parts by mass or less, from the viewpoint of improving the heat-resistant adhesion.
- the compounding amount of the organic polyvalent metal compound of the component (S) is usually 0.01 parts by mass or more and 0.5 parts by mass or less, preferably 0.01 parts by mass with respect to 100 parts by mass of the component (P). Part to 0.3 part by weight, 0.03 part to 0.5 part by weight, or 0.03 part to 0.3 part by weight.
- the pressure-sensitive adhesive containing a predetermined amount of the above components (P) to (S) further contains optional components other than the above components (P) to (S) as desired, as long as they do not contradict the purpose of the present invention.
- the optional component include a photopolymerization initiator, a compound having two or more isocyanate groups in one molecule, an epoxy resin curing accelerator, an antistatic agent, a surfactant, a leveling agent, a thixotropic agent, and an antifouling agent.
- additives such as a colorant, a printability improver, an antioxidant, a weather resistance stabilizer, a light resistance stabilizer, an ultraviolet absorber, a heat stabilizer, a pigment, and a filler.
- the amount of the optional component is usually about 0.01 to 10 parts by mass with 100 parts by mass of the component (P).
- Preferred examples of the optional component include an epoxy resin curing accelerator.
- the reactivity of the component (R) is controlled by using the epoxy resin curing accelerator in an amount of usually 1 to 200 parts by weight, preferably about 10 to 100 parts by weight with respect to 100 parts by weight of the component (R). be able to.
- epoxy resin curing accelerator examples include 2-methylimidazole, 2-ethylimidazole, 2-ethyl-4-methylimidazole, 2-phenylimidazole, 2-phenyl-4-methylimidazole, 2-phenyl-4- Imidazole compounds such as methyl-5-hydroxymethylimidazole and 2-phenyl-4,5-dihydroxymethylimidazole, and derivatives thereof; 1,8-diazabicyclo [5,4,0] -7-undecene, 1,5 -Diazabicyclo [4,3,0] -5-nonene, and derivatives thereof (for example, their carboxylates, sulfonates, phenol salts, and phenol novolac resin salts); triphenylphosphine, tributylphosphine, tris (P-Methylphenyl) phosphine, Tris Triorganophosphine compounds such as p-methoxyphenyl) phosphine and tris (p-
- the decorative sheet decorative sheet will be described.
- the decorative sheet functions to impart high designability to the door body of the present invention.
- the decorative sheet is not particularly limited, and any decorative sheet can be used.
- As the decorative sheet for example, any colored resin sheet can be used.
- polyester resins such as aromatic polyesters and aliphatic polyesters
- acrylic resins such as polycarbonate resins
- poly (meth) acrylimide resins such as polyethylene, polypropylene, and polymethylpentene.
- Cellulosic resin Cellulosic resin
- Cellulosic resin such as cellophane, triacetylcellulose, diacetylcellulose, and acetylcellulose butyrate
- polystyrene acrylonitrile / butadiene / styrene copolymer resin (ABS resin), styrene / ethylene / butadiene / styrene copolymer, styrene ⁇ Styrene resins such as ethylene / propylene / styrene copolymers and styrene / ethylene / ethylene / propylene / styrene copolymers; polyvinyl chloride resins; polyvinyl chloride Den-based resins; fluorinated resins such as polyvinylidene fluoride; other colored resins such as polyvinyl alcohol, ethylene vinyl alcohol, polyether ether ketone, nylon, polyamide, poly
- the thickness of the colored resin sheet is not particularly limited, but may be usually 20 ⁇ m or more, preferably 50 ⁇ m or more, more preferably 80 ⁇ m or more. Further, the thickness of the colored resin sheet is usually 1500 ⁇ m or less, preferably 800 ⁇ m or less, and more preferably 400 ⁇ m or less, from the viewpoint of meeting the demand for thinner articles.
- a printed layer may be provided on the front surface of the colored resin sheet to enhance the design feeling, if desired.
- the printing layer is provided for imparting high designability, and can be formed by printing an arbitrary pattern using an arbitrary ink and an arbitrary printing machine.
- Printing is performed directly or via an anchor coat on the surface opposite to the hard coat forming surface of the transparent resin sheet or / and on the front surface of the colored resin sheet, or entirely or partially.
- the patterns include metal-like patterns such as hairlines, wood grain patterns, stone patterns imitating the surface of rocks such as marble, fabric patterns imitating cloth and cloth-like patterns, tiled patterns, brickwork patterns, parquet patterns, And patchwork.
- As printing ink what mixed the pigment, the solvent, the stabilizer, the plasticizer, the catalyst, the hardening
- binder examples include polyurethane resins, vinyl chloride / vinyl acetate copolymer resins, vinyl chloride / vinyl acetate / acrylic copolymer resins, chlorinated polypropylene resins, acrylic resins, polyester resins, polyamides. Resins such as resin, butyral resin, polystyrene resin, nitrocellulose resin, and cellulose acetate resin, and these resin compositions can be used. In addition, in order to give a metallic design, aluminum, tin, titanium, indium and oxides thereof are directly or via an anchor coat on the surface opposite to the hard coat formation surface of the transparent resin sheet. Alternatively, and / or on the surface on the front side of the colored resin sheet, the entire surface or a portion may be deposited by a known method.
- the lamination of the hard coat laminate sheet and the decorative sheet is not particularly limited and can be performed by any method.
- Examples of the method include a method of dry laminating using a known adhesive; and a method of forming a layer made of a known pressure-sensitive adhesive and then pressing both of them together.
- FIG. 11 is a conceptual diagram of a cross section showing an example of a hard coat laminated sheet.
- the first hard coat 15, the second hard coat 16, the transparent resin sheet layer 17, the third hard coat 18, the transparent adhesive layer 19, the printing layer 20, and the colored resin sheet layer 21 are provided.
- the hard coat laminated sheet is composed of a first hard coat 15, a second hard coat 16, a transparent resin sheet layer 17, and a third hard coat 18, and the decorative sheet is a printed layer 20 and a colored resin sheet layer. 21.
- the hard coat laminated sheet used for the door body of the present invention and the transparent adhesive will be further described with reference to the examples, the present invention is not limited thereto.
- the hard coat laminated sheet will be described.
- Water contact angle (initial water contact angle) A method of calculating the water contact angle of the first hard coat surface of the hard coat laminate sheet from the width and height of water droplets using an automatic contact angle meter “DSA20” (trade name) manufactured by KRUSS (JIS R3257: 1999) ).
- V Scratch resistance (water contact angle after cotton wiping)
- the test piece was sampled so that the machine direction of the hard coat laminated sheet was the vertical direction of the test piece with a size of 150 mm in length and 50 mm in width.
- This test piece is placed on the Gakushin Tester of JIS L0849: 2013 so that the first hard coat of the hard coat laminate sheet is on the surface, and the four-layer gauze (Kawamoto Sangyo Co., Ltd.) is placed on the friction terminal of the Gakushin Tester.
- a stainless steel plate (length 10 mm, width 10 mm, thickness 1 mm) covered with a medical type 1 gauze) was attached and set so that the length and width of the stainless steel plate contacted the test piece.
- a 350 g load was placed on the stainless steel plate covered with the gauze, and the first hard coat surface of the test piece was rubbed 10,000 times in the condition of moving distance of friction terminal 60 mm and speed 1 reciprocation / second, and then the above (iv) According to the method, the water contact angle of the cotton wiping location was measured.
- the water contact angle is 100 degrees or more, after further rubbing 5,000 times, the operation of measuring the water contact angle of the cotton wiping site is repeated according to the method (iv) above. Sex was evaluated.
- B After 20,000 round trips, the water contact angle is 100 degrees or more, but after 25,000 rounds, it is less than 100 degrees.
- Classification 2 The coating film is peeled along the edge of the cut and / or at the intersection. The area affected by the crosscut portion clearly exceeds 5% but does not exceed 15%.
- Classification 3 The coating film is partially or completely peeled along the edge of the cut, and / or various parts of the eyes are partially or completely peeled off. The area affected by the crosscut portion clearly exceeds 15% but does not exceed 35%.
- Classification 4 The coating film is partially or completely peeled along the edge of the cut, and / or some eyes are partially or completely peeled off. The area affected by the crosscut portion clearly exceeds 35% but does not exceed 65%.
- Category 5 The case where the degree of peeling exceeds Category 4 is regarded as this category.
- the metal balls were dropped once for a total of three times.
- the N number of the test was 3, and in all the tests, if the metal ball did not penetrate the hard coat laminated sheet, the test was accepted (indicated as “ ⁇ ” in the table), and otherwise rejected (indicated in the table as “x”).
- B Water repellent (B-1) Acryloyl group-containing fluoropolyether water repellent “KY-1203” (trade name) of Shin-Etsu Chemical Co., Ltd. (solid name): 20% by mass (B-2) Solvay's methacryloyl group-containing fluoropolyether water repellent “FOMBLIN MT70” (trade name): solid content of 70% by mass
- C Silane coupling agent (C-1) Shin-Etsu Chemical Co., Ltd. N-2- (aminoethyl) -3-aminopropylmethyldimethoxysilane “KBM-602” (trade name) (C-2) N-2- (aminoethyl) -3-aminopropyltrimethoxysilane “KBM-603” (trade name) from Shin-Etsu Chemical Co., Ltd. (C-3) 3-aminopropyltrimethoxysilane "KBM-903" (trade name) from Shin-Etsu Chemical Co., Ltd. (C-4) Shin-Etsu Chemical Co., Ltd.
- E Leveling agent (E-1) Silicon / acrylic copolymer leveling agent “DISPARON NSH-8430HF” (trade name) from Enomoto Kasei Co., Ltd. (trade name): solid content 10% by mass (E-2) Silicone / acrylic copolymer leveling agent “BYK-3550” (trade name) of Big Chemie Japan Co., Ltd. (solid name): 52% by mass (E-3) Acrylic polymer leveling agent “BYK-399” (trade name) of Big Chemie Japan Co., Ltd .: solid content of 100% by mass (E-4) Silicone leveling agent “Disparon LS-480” (trade name) from Enomoto Kasei Co., Ltd .: 100% by mass of solid content
- H1-1) First hard coat forming coating (H1-1) (A-1) 100 parts by mass, (B-1) 2 parts by mass (solid content conversion 0.40 parts by mass), (B-2 ) 0.06 parts by mass (0.042 parts by mass in terms of solid content), 0.5 parts by mass of (C-1), 4 parts by mass of (F-1), and 100 parts by mass of (F-2). The mixture was stirred to obtain a paint. Table 1 shows each component and its blending amount.
- (H2) Second hard coat forming paint (H2-1) 100 parts by mass of (A-2), 140 parts by mass of (D-1), 2 parts by mass of (E-1) 2 parts by mass), 17 parts by mass of (F-1), and 200 parts by mass of (F-2) were mixed and stirred to obtain a paint.
- Table 3 shows each component and its blending amount. For (E-1) above, the values in terms of solid content are listed in the table.
- (A) Transparent resin sheet (a1-1) Acrylic resin sheet 1
- An apparatus comprising a T-die 22 and an extruder (not shown) as shown in FIG. 12 using an acrylic resin “Optimas 6000” (trade name) (glass transition temperature 119 ° C.) of Mitsubishi Gas Chemical Co., Inc.
- a first mirror surface roll 24 (a roll on the side holding the molten sheet and feeding it to the next transfer roll; the same shall apply hereinafter).
- the molten sheet was supplied and pressed between the rotating second mirror roll 25 and a transparent resin sheet having a thickness of 1 mm was obtained.
- the setting conditions at this time were a first mirror surface roll setting temperature of 120 ° C., a second mirror surface roll setting temperature of 110 ° C., and a T die outlet resin temperature of 300 ° C.
- the obtained transparent resin sheet had a total light transmittance of 92%, a haze of 0.5%, a yellowness index of 0.3, and a tensile modulus of 3400 MPa.
- the tensile elastic modulus here was measured according to JIS K7127: 1999 under the conditions of test piece type 1B and a tensile speed of 50 mm / min (the same applies to the following production examples).
- (A1-2) Acrylic resin sheet 2 Using a poly (meth) acrylimide resin “PLEXIMID TT50” (product name) (glass transition temperature 154 ° C.) of Evonik, T-die 22 and an extruder (not shown) as shown in FIG.
- the molten sheet 23 of the resin is continuously extruded from a T die, and the molten sheet is supplied and fed between the rotating first mirror roll 24 and the rotating second mirror roll 25.
- the setting conditions at this time were a first mirror surface roll setting temperature of 140 ° C., a second mirror surface roll setting temperature of 120 ° C., and a T-die outlet resin temperature of 300 ° C.
- the obtained transparent resin sheet had a total light transmittance of 92%, a haze of 0.5%, a yellowness index of 0.3, and a tensile modulus of 4300 MPa.
- Aromatic polycarbonate resin sheet An aromatic polycarbonate “Caliver 301-4” (trade name) (glass transition temperature 151 ° C.) of Sumika Stylon Polycarbonate Co., Ltd. is used as shown in FIG. Using a device provided with a T die 22 and an extruder (not shown), the molten sheet 23 of the resin is continuously extruded from the T die, and a first mirror roll 24 that rotates and a second mirror roll 25 that rotates. The molten sheet was fed and pressed between the two and a transparent resin sheet having a thickness of 1 mm was obtained.
- the setting conditions at this time were a first mirror surface roll setting temperature of 140 ° C., a second mirror surface roll setting temperature of 120 ° C., and a T-die outlet resin temperature of 300 ° C.
- the obtained transparent resin sheet had a total light transmittance of 90%, a haze of 0.6%, a yellowness index of 0.5, and a tensile modulus of 2300 MPa.
- A3-1) Polyester resin sheet 1 Using a PETG resin “Cadence GS1” (trade name) (glass transition temperature of 81 ° C.) which is an amorphous polyester resin of Eastman Chemical Company, a T die 22 and an extruder (shown in FIG. 12) The molten sheet 23 of the resin is continuously extruded from a T-die, and the molten material is rotated between the rotating first mirror roll 24 and the rotating second mirror roll 25. The sheet was supplied and pressed to obtain a transparent resin sheet having a thickness of 1 mm.
- the setting conditions at this time were a first mirror surface roll setting temperature of 80 ° C., a second mirror surface roll setting temperature of 40 ° C., and a T die outlet resin temperature of 200 ° C.
- the obtained transparent resin sheet had a total light transmittance of 89%, a haze of 1.3%, a yellowness index of 0.4, and a tensile elastic modulus of 1500 MPa.
- (A3-2) Polyester resin sheet 2 Using a non-crystalline polyester resin “TRITAN FX200” (trade name) (glass transition temperature 119 ° C.) of Eastman Chemical Company, T-die 22 and an extruder (not shown) as shown in FIG.
- the molten sheet 23 of the resin is continuously extruded from a T die, and the molten sheet is supplied and fed between a rotating first mirror roll 24 and a rotating second mirror roll 25. And pressed to obtain a transparent resin sheet having a thickness of 1 mm.
- the setting conditions at this time were a first mirror roll setting temperature of 80 ° C., a second mirror roll setting temperature of 40 ° C., and a T-die outlet resin temperature of 230 ° C.
- the obtained transparent resin sheet had a total light transmittance of 90%, a haze of 1.2%, a yellowness index of 0.4, and a tensile modulus of 1500 MPa.
- the melt-laminated sheet is fed and pressed between one mirror roll and the rotating second mirror roll, and is transparent with a total thickness of 1 mm, a thickness of both outer layers of 0.1 mm, and a thickness of the intermediate layer of 0.8 mm.
- a resin sheet was obtained.
- the setting conditions at this time were a first mirror surface roll setting temperature of 120 ° C., a second mirror surface roll setting temperature of 110 ° C., and a T die outlet resin temperature of 300 ° C.
- the obtained transparent resin sheet had a total light transmittance of 91%, a haze of 0.6%, a yellowness index of 0.5, and a tensile elastic modulus of 2600 MPa.
- Example 1 Corona discharge treatment was performed on both surfaces of the acrylic resin sheet 1 of (a1-1). The wetness index on both sides was 64 mN / m.
- the second hard coat forming paint of the above (H2-1) is wetted using a die type coating apparatus. It applied so that it might become thickness 40micrometer (thickness 22micrometer after hardening).
- the high-pressure mercury lamp type ultraviolet irradiation device 11 and the diameter 25 was used (see FIG.
- the wet coating film of the second hard coat forming coating (H2-1) was a dry-to-touch coating film.
- the first hard coat of (H1-1) is used.
- the coating-forming paint was applied so as to have a wet thickness of 4 ⁇ m (thickness after curing: 2 ⁇ m).
- Examples 2-16 In the same manner as in Example 1 except that the paint shown in any one of Tables 5 to 7 was used instead of (H1-1), the production of the hard coat laminated sheet and the measurement and evaluation of the physical properties were performed. The results are shown in any one of Tables 5-7.
- Example 17-30 In the same manner as in Example 1 except that the coating material shown in any one of Tables 7 to 9 was used instead of (H2-1), the production of the hard coat laminated sheet and the measurement and evaluation of the physical properties were performed. The results are shown in any one of Tables 7-9.
- Examples 36-39 Except that the thickness after curing of the first hard coat was changed as shown in Table 10, production of the hard coat laminate sheet and measurement / evaluation of physical properties were performed in the same manner as in Example 1. The results are shown in Table 10.
- hard coat is abbreviated as “HC”.
- Examples 40-43 All the same as Example 1 except that the thickness after curing of the second hard coat was changed as shown in Table 10, and the thickness after curing of the third hard coat was changed to the same as the thickness after curing of the second hard coat.
- the production of the hard coat laminated sheet and the measurement and evaluation of the physical properties were performed. The results are shown in Table 10.
- the preferred hard coat laminated sheets shown in these examples are excellent in transparency, rigidity, scratch resistance, weather resistance, impact resistance, and processability, and repeatedly wiped with a wiper or the like, or repeatedly wiped with a dust cloth or the like. It has been found that the initial characteristics can be maintained even if it is applied. Therefore, it can be suitably used as a material for the door body of the present invention. Moreover, the door body including the hard coat laminated sheet shown in these examples has the above-mentioned preferable characteristics, so that various articles such as household appliances such as a refrigerator (for example, a door of a system kitchen, a wine cellar) Door, washing machine lid, dishwasher lid).
- the refrigerator here may be any known one.
- the initial adhesion strength is preferably 15 N / 25 mm or more, more preferably 20 N / 25 mm or more, and further preferably 25 N / 25 mm or more. In consideration of reworkability, it may be preferably 50 N / 25 mm or less, more preferably 45 N / 25 mm or less.
- the test piece was subjected to a heat treatment at a temperature of 60 ° C. for 10 minutes, and then the adhesive strength was measured, except that the adhesive strength was measured. The adhesive strength was measured.
- the heat-resistant adhesion (adhesive strength after heat treatment) is preferably 5 N / 25 mm or more, more preferably 10 N / 25 mm or more, and still more preferably 15 N / 25 mm or more.
- the test piece was exposed to a temperature of ⁇ 30 ° C. and a relative humidity of 90% for 6 hours and then exposed to a temperature of 60 ° C. and a relative humidity of 90% for 6 hours.
- the adhesive strength of the decorative sheet after the heat cycle was measured in the same manner as in the above test (I) except that the adhesive strength was measured after performing a total of 3 cycles. Subsequently, the ratio (residual ratio) of the adhesive force after the heat cycle with respect to the value of the test (I) was calculated.
- the heat cycle resistance is preferably 70% or more, more preferably 80% or more, and still more preferably 90% or more. There is no particular upper limit on the residual rate.
- (IV) Alkali resistance The above test (I) except that the test piece was subjected to immersion treatment for 24 hours in an aqueous sodium hydroxide solution having a concentration of 5% by mass and a temperature of 25 ° C., and then the adhesive strength was measured. The adhesive strength of the decorative sheet after the immersion treatment was measured. Subsequently, the ratio (residual ratio) of the adhesive force after the immersion treatment with respect to the value of the test (I) was calculated.
- the alkali resistance residual rate of adhesive strength after immersion treatment
- the alkali resistance is preferably 70% or more, more preferably 80% or more, and further preferably 90% or more. There is no particular upper limit on the residual rate.
- the test piece was subjected to the same test (I) as above except that the adhesive strength was measured after exposure to an environment of 60 ° C. and 98% relative humidity for 400 hours. The adhesive strength of the decorative sheet after the wet heat treatment was measured. Subsequently, the ratio (residual ratio) of the adhesive force after the wet heat treatment with respect to the value of the test (I) was calculated.
- the wet heat peel resistance is preferably 70% or more, more preferably 80% or more, and still more preferably 90% or more. There is no particular upper limit on the residual rate.
- P ′ Reference acrylic polymer (P′-1) “Acrybase LKG-1011” (trade name) manufactured by Fujikura Kasei Co., Ltd .: glass transition temperature—53 ° C., acid value 1.9 mgKOH / g, weight average molecular weight 1 million (P'-2) "Acrybase LKG-1101” (trade name) manufactured by Fujikura Kasei Co., Ltd .: glass transition temperature -22 ° C, acid value 0.3 mgKOH / g, weight average molecular weight 430,000
- Example 44 100 parts by mass of the component (P-1), 0.057 parts by mass of the component (Q-1), 0.077 parts by mass of the component (R-1), and 0 of the component (S-1) in terms of solid content 0.023 parts by mass was mixed and stirred to obtain a transparent adhesive.
- the layer made of the transparent adhesive obtained above is provided so that the layer thickness after drying becomes 50 ⁇ m.
- the attached decorative sheet was obtained.
- the above tests (I) to (IX) were performed on this decorative sheet.
- Table 11 shows the composition of the transparent adhesive and the measurement / evaluation results of the physical properties.
- Examples 45-64 The transparent adhesive was prepared and the physical properties were measured and evaluated in the same manner as in Example 44, except that the formulation of the adhesive was changed as shown in any one of Tables 11 to 13. Tables 11 to 13 show the blending composition of these transparent adhesives and the measurement / evaluation results of physical properties.
- Preferred transparent adhesives shown in these examples are adhesive strength when used for bonding the colored polyvinyl chloride resin composition sheet and the hard coat laminate sheet (third hard coat) shown in Example 1. It was found that the heat and moisture resistance, heat resistance, transparency and hardness were excellent. Therefore, by using the preferred transparent adhesive shown in these examples as the material of the door body of the present invention, peeling in the foam insulation material filling step, peeling due to outgas in a high temperature and high humidity environment, and dents Can solve such problems.
- the door body including the transparent adhesive shown in these examples has the above-mentioned preferable characteristics, so that various articles such as household appliances such as refrigerators (for example, doors of system kitchens, doors of wine cellars) , Washing machine lids, dishwasher lids).
- the refrigerator here may be any known one.
- a door that opens and closes the front of the article body, A front panel that constitutes the front surface, a frame that supports at least a part of the outer end of the front panel, and a back panel that constitutes the back surface;
- the front panel has a transparent resin sheet layer, a transparent adhesive layer, and a decorative sheet in this order from the front surface layer;
- the frame has a support plate extending into the interior of the article in a substantially vertical direction;
- the front panel is bonded to the support plate with a double-sided adhesive film;
- the extension length of the support plate to the inside of the door body is 10 mm or more;
- the support plate has a thickness of 1 mm or more;
- the radius of curvature of the front side corner of the front edge of the support plate is 0.1 to 10 mm;
- the double-sided adhesive film extends from the front edge of the support plate to the inside of the door body;
- the thickness of the said double-sided adhesive film is a door body which is 200 micrometers or more
- a door that opens and closes the front of the article body A front panel that constitutes the front surface, a frame that supports at least a part of the outer end of the front panel, and a back panel that constitutes the back surface;
- the front panel includes a transparent adhesive;
- the transparent adhesive is (P) 100 parts by mass of an acrylic polymer having a glass transition temperature of ⁇ 50 to ⁇ 25 ° C., (Q) 0.01 to 3 parts by mass of a silane coupling agent having an epoxy group, (R) A door comprising 0.01 to 0.9 parts by mass of a compound having two or more epoxy groups in one molecule, and (S) 0.01 to 0.5 parts by mass of an organic polyvalent metal compound.
- Frame 1a Outer peripheral plate of frame 1b: Support plate of frame 1c: Front side angle of front edge of support plate 1d: Length of support plate 1e: Thickness of support plate 1f: Integrated with rear panel of frame Molded part 2: Hard coat laminated sheet 3: Transparent adhesive layer 4: Cosmetic sheet 5: Rear panel 5a: Suspension base for display unit 5b: Split rear panel formed integrally with part of frame Part 5c: Divided part of the rear panel 6: Double-sided adhesive film 6a: Length of the double-sided adhesive film extending from the edge of the support plate 7: Thermal insulation 8: Display unit 9: Double-sided adhesive film 10: Cable 11: Ultraviolet irradiation device 12: Mirror surface metal roll 13: Web 14: Holding angle 15: First hard coat 16: Second hard coat 17: Layer of transparent resin sheet 18: Third hard coat 1 9: Transparent adhesive layer 20: Printing layer 21: Colored resin sheet layer 22: T die 23: Molten sheet 24
Landscapes
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Abstract
Description
[1].
物品本体の正面部を開閉する扉体であって、
正面を構成する正面パネルと、上記正面パネルの外側端部の少なくとも一部を支持する枠体と、背面を構成する背面パネルを有し;
上記正面パネルは、ハードコート積層シートを含み;
上記ハードコート積層シートは、正面側の表層側から順に第1ハードコート、第2ハードコート、及び透明樹脂シートの層を有し;
上記第1ハードコートは、
(A)多官能(メタ)アクリレート100質量部、
(B)撥水剤0.01~7質量部、及び
(C)シランカップリング剤0.01~10質量部を含み、かつ無機粒子を含まない塗料から形成されており;
上記第2ハードコートは、
(A)多官能(メタ)アクリレート100質量部、及び
(D)平均粒子径1~300nmの無機微粒子50~300質量部を含む塗料から形成されている、
扉体。
[2].
扉体の正面の少なくとも一部にディスプレイを有する、上記[1]項に記載の扉体。
[3].
上記(C)シランカップリング剤が、アミノ基を有するシランカップリング剤、及びメルカプト基を有するシランカップリング剤からなる群から選択される1種以上を含む、上記[1]又は[2]項に記載の扉体。
[4].
上記(B)撥水剤が、(メタ)アクリロイル基含有フルオロポリエーテル系撥水剤を含む、上記[1]~[3]項の何れか1項に記載の扉体。
[5].
上記第2ハードコートを形成する塗料が、更に(E)レベリング剤0.01~1質量部を含む、上記[1]~[4]項の何れか1項に記載の扉体。
[6].
物品本体の正面部を開閉する扉体であって、
正面を構成する正面パネルと、上記正面パネルの外側端部の少なくとも一部を支持する枠体と、背面を構成する背面パネルを有し;
上記正面パネルは、ハードコート積層シートを含み;
上記ハードコート積層シートは、正面側の表層側から順に第1ハードコート、第2ハードコート、及び透明樹脂シートの層を有し;
上記第1ハードコートは無機粒子を含まない塗料から形成されており;
上記第2ハードコートは無機粒子を含む塗料から形成されており;
下記、(i)~(iii):
(i)全光線透過率80%以上;
(ii)ヘーズ5%以下;
(iii)黄色度指数3以下
を満たす、扉体。
[7].
上記ハードコート積層シートが、更に下記(iv)及び(v):
(iv)上記第1ハードコート表面の水接触角が100度以上;
(v)上記第1ハードコート表面の往復2万回綿拭後の水接触角が100度以上
を満たす、上記[6]項に記載の扉体。
[8].
上記正面パネルが、上記透明樹脂シートの層の背面側の少なくとも一部に、透明粘着剤層、及び化粧シートの層をこの順に有し;
上記透明粘着剤が、
(P)ガラス転移温度-50~-25℃のアクリル系重合体100質量部、
(Q)エポキシ基を有するシランカップリング剤0.01~3質量部、
(R)1分子中に2以上のエポキシ基を有する化合物0.01~0.9質量部、及び
(S)有機多価金属化合物0.01~0.5質量部
を含む、上記[1]~[7]項の何れか1項に記載の扉体。
[9].
上記正面パネル、上記枠体、及び上記背面パネルにより形成される扉体の内部に断熱材が充填されている、上記[1]~[8]項の何れか1項に記載の扉体。
[10].
上記[1]~[9]項の何れか1項に記載の扉体を含む冷蔵庫。
扉体の正面パネルに含まれるハードコート積層シートについて説明する。ハードコート積層シートとしては、ガラスに替わる材料として用いる目的から、高い透明性を有し、かつ着色のないものであること以外は制限されず、任意のハードコート積層シートを用いることができる。ハードコート積層シートは、好ましくは、耐擦傷性の観点から、正面側の表層から順に第1ハードコート、第2ハードコート、及び透明樹脂シートの層を有する。以下、好ましいハードコート積層シートについて説明する。
上記第1ハードコートは、通常、本発明の扉体の正面側の表面を形成する。上記第1ハードコートは、良好な耐擦傷性を発現し、ハンカチなどで繰返し拭かれたとしても指すべり性などの表面特性を維持する働きをする。
上記成分(A)の多官能(メタ)アクリレートは、1分子中に2以上の(メタ)アクリロイル基を有する(メタ)アクリレートである。上記成分(A)は、1分子中に2以上の(メタ)アクリロイル基を有するため、紫外線や電子線等の活性エネルギー線により重合・硬化して、ハードコートを形成する働きをする。
上記成分(B)の撥水剤は、耐指紋性を高める働きをする。
上記成分(C)のシランカップリング剤は、上記第1ハードコートと上記第2ハードコートとの密着性を向上させる働きをする。
なお、ここで言及した成分(C)のシランカップリング剤の通常または好ましい配合量の範囲群のいずれかは、上で言及した成分(B)の撥水剤の配合量の通常または好ましい範囲群のいずれとも組み合わせることができる。
一実施態様において、上記第2ハードコートは、好ましくは無機粒子を含む塗料から形成されている。他の実施形態において、上記第2ハードコートは、好ましくは(A)多官能(メタ)アクリレート100質量部;及び(D)平均粒子径1~300nmの無機微粒子50~300質量部を含む塗料から形成されている。
上記成分(D)は、ハードコート積層シートの表面硬度を飛躍的に高める働きをする。
上記第2ハードコート形成用塗料には、上記第2ハードコートの表面を平滑なものにし、上記第1ハードコートを形成し易くする観点から、更に(E)レベリング剤を含ませることが好ましい。
なお、ここで言及した成分(E)のレベリング剤の配合量の通常または好ましい範囲群のいずれかは、上で言及した成分(D)の無機微粒子の配合量の通常または好ましい範囲群のいずれとも組み合わせることができる。
ここで言及した第2ハードコートの厚みの好ましい範囲群のいずれかは、上で言及した第1ハードコートの厚みの好ましい範囲群のいずれとも組み合わせることができる。
ハードコート積層シートは、好ましい態様において、透明樹脂シートの少なくとも一方の面の上に上記第2ハードコートを有し、更にその上に上記第1ハードコートを有する。なお、上記第2ハードコートは、上記透明樹脂シートの少なくとも一方の面の上に、直接形成してもよく、アンカーコートを介して形成してもよく、透明樹脂フィルムの層などの任意の透明層を介して形成してもよい。上記透明樹脂シートとしては、ハードコート積層シートをガラスに替わる材料として用いる目的から、高い透明性を有し、かつ着色のないものであること以外は制限されず、任意の透明樹脂シートを用いることができる。
上記透明樹脂シートの厚みは、好ましくは0.2mm以上10mm以下であってよく、より好ましくは、0.2mm以上6mm以下、0.2mm以上3mm以下、0.5mm以上10mm以下、0.5mm以上6mm以下、0.5mm以上3mm以下、0.8mm以上10mm以下、0.8mm以上6mm以下、0.8mm以上3mm以下、1mm以上10mm以下、1mm以上6mm以下、1mm以上3mm以下であってよい。なお、ここで言及した透明樹脂シートの厚みの好ましい範囲群のいずれかは、上で言及した第1ハードコートおよび/または第2ハードコートの厚みの好ましい範囲群のいずれとも組み合わせることができる。
(a1)アクリル系樹脂シート;
(a2)芳香族ポリカーボネート系樹脂シート;
(a3)ポリエステル系樹脂シート(アクリル系樹脂又は芳香族ポリカーボネート系樹脂から形成された樹脂シートを除く);
(a4)上記透明樹脂シート(a1)~(a3)の何れか1種又は2種以上の積層シート
が好ましい。
また、本発明のハードコート積層シートは、全光線透過率が80%以上であり、かつヘーズが3%以下であること、全光線透過率が80%以上であり、かつヘーズが2%以下であること、全光線透過率が85%以上であり、かつヘーズが5%以下であること、全光線透過率が85%以上であり、かつヘーズが3%以下であること、全光線透過率が85%以上であり、かつヘーズが2%以下であること、全光線透過率が88%以上であり、かつヘーズが5%以下であること、全光線透過率が88%以上であり、かつヘーズが3%以下であること、全光線透過率が88%以上であり、かつヘーズが2%以下であること、全光線透過率が89%以上であり、かつヘーズが5%以下であること、全光線透過率が89%以上であり、かつヘーズが3%以下であること、全光線透過率が89%以上であり、かつヘーズが2%以下であること、全光線透過率が90%以上であり、かつヘーズが5%以下であること、全光線透過率が90%以上であり、かつヘーズが3%以下であること、全光線透過率が90%以上であり、かつヘーズが2%以下であることも、好ましい。また、これらの全光線透過率およびヘーズの好ましい範囲の組み合わせ群のそれぞれに対し、それに加えて、黄色度指数が3以下、2以下、または1以下であることはまた好ましい。また、これらの全光線透過率、ヘーズおよび黄色度指数の好ましい範囲の組み合わせ群のそれぞれは、上に例示した第1ハードコート、第2ハードコートおよび透明樹脂シートのいかなるものに対しても適用されうる。
なお、上で言及したハードコート積層シートの全光線透過率及び/又はヘーズ及び/又は黄色度指数の好ましい範囲群のいずれかは、ここで言及した第1ハードコート表面の水接触角の好ましい範囲群のいずれとも組み合わせることができ、および/または、ここで言及した第1ハードコート表面の往復2万回もしくは2万5千回綿拭後の水接触角の好ましい範囲群のいずれとも組み合わせることができる。
ハードコート積層シートの製造方法は、特に制限されず、任意の方法で製造することができる。
好ましい製造方法としては、上記第1ハードコートと上記第2ハードコートとの密着性の観点から、例えば、
(1)上記透明樹脂シートの上に、上記第2ハードコート形成用塗料のウェット塗膜を形成する工程;
(2)上記第2ハードコート形成用塗料の上記ウェット塗膜に、活性エネルギー線を積算光量が1~230mJ/cm2、好ましくは5~200mJ/cm2、より好ましくは10~160mJ/cm2、更に好ましくは20~120mJ/cm2、最も好ましくは30~100mJ/cm2となるように照射し、上記第2ハードコート形成用塗料の上記ウェット塗膜を、指触乾燥状態の塗膜にする工程;
(3)上記第2ハードコート形成用塗料の上記指触乾燥状態の塗膜の上に、上記第1ハードコート形成用塗料のウェット塗膜を形成する工程;及び
(4)上記第1ハードコート形成用塗料の上記ウェット塗膜を温度30~100℃、好ましくは温度40~85℃、より好ましくは温度50~75℃に予熱し、活性エネルギー線を積算光量が240~10000mJ/cm2、好ましくは320~5000mJ/cm2、より好ましくは360~2000mJ/cm2となるように照射する工程
を含む方法を挙げることができる。
透明粘着剤層について説明する。透明粘着剤層は、意匠性の観点から、透明性に優れた粘着剤を主として含む(通常50質量%以上、好ましくは80質量%以上、より好ましくは90質量%以上)層である。透明粘着剤層は、扉体生産時はもちろんのこと、扉体が冷蔵庫等の物品として使用される際にも不透明にならず、透明であることが好ましい。
(P)ガラス転移温度-50~-25℃のアクリル系重合体100質量部;
(Q)エポキシ基を有するシランカップリング剤0.01~3質量部;
(R)1分子中に2以上のエポキシ基を有する化合物0.01~0.9質量部;及び
(S)有機多価金属化合物0.01~0.5質量部
を含む粘着剤が好ましい。
このような粘着剤を用いることにより、湿熱剥離の問題、打痕の問題、及び充填工程中の剥離の問題が解決された扉体を容易に得ることができるようになる。
上記成分(P)のアクリル系重合体は、粘着剤の主剤として、粘着性を発現するとともに、上記成分(Q)~(S)、及びその他の任意成分を包含する働きをする。
1/(Tg+273)=W1/(Tg1+273)+W2/(Tg2+273)+W3/(Tg3+273)+・・・+Wn/(Tgn+273)
(式中、Tgは、n種の単量体からなる重合体のガラス転移温度(℃)であり、W1、W2、W3・・・Wnは、単量体組成物中の各単量体の質量%であり、Tg1、Tg2、Tg3・・・Tgnは、各単量体のホモポリマーのガラス転移温度(℃)である。)
各ホモポリマーのTgは、例えば、ポリマーハンドブックなどに記載されている数値を使用することができる。
シランカップリング剤は、加水分解性基(例えば、メトキシ基、エトキシ基等のアルコキシ基;アセトキシ基等のアシルオキシ基;クロロ基等のハロゲン基など)、及び有機官能基(例えば、アミノ基、ビニル基、エポキシ基、メタクリロキシ基、アクリロキシ基、イソシアネート基など)の少なくとも2種類の異なる反応性基を有するシラン化合物である。上記成分(Q)のシランカップリング剤としては、有機官能基として少なくとも エポキシ基を有するシランカップリング剤を用いる。上記成分(Q)のシランカップリング剤は、エポキシ基を有することにより、上記成分(P)や上記成分(R)と化学結合ないし強く相互作用することができる。上記成分(Q)のシランカップリング剤は、このような化学結合や相互作用を阻害しない範囲でエポキシ基以外の有機官能基を有していてもよい。エポキシ基の作用により、粘着剤に適度な硬度が付与され、打痕の問題を解決することができる。また、上記成分(Q)のシランカップリング剤は、加水分解性基を有することにより、打痕の問題を解決するのに十分な硬度であるにも係わらず、充填工程中の剥離の問題を解決することができる。更に、上記成分(Q)のシランカップリング剤は、有機官能基がエポキシ基であることから、上記成分(R)や上記成分(S)との混和性に優れる。
上記成分(R)のエポキシ基含有化合物は、1分子中に2以上のエポキシ基を有し、上記成分(P)や(Q)と化学結合ないし強く相互作用することができる。これにより、粘着剤に適度な硬度が付与され、打痕の問題を解決することができる。また、上記成分(R)のエポキシ基含有化合物は、上記成分(S)と特異的な高相性を示し、高温高湿の環境下においても、粘着強度や透明性を保持することができる。
上記成分(S)の有機多価金属化合物は、上記成分(R)と上記成分(P)や上記成分(Q)との化学反応や相互作用を補助する働きをする。これにより粘着剤に適度な硬度が付与され、打痕の問題を解決することができる。また、上記成分(S)の有機多価金属化合物は、上記成分(R)と特異的な高相性を示し、高温高湿の環境下においても、粘着強度や透明性を保持することができる。
化粧シートについて説明する。化粧シートは、本発明の扉体に高い意匠性を付与する働きをする。化粧シートとしては、特に制限されず、任意の化粧シートを用いることができる。化粧シートとしては、例えば、任意の着色樹脂シートを用いることができる。
ハードコート積層シートに関する物性の測定・評価方法について説明する。
(i)全光線透過率
JIS K7361-1:1997に従い、日本電色工業株式会社の濁度計「NDH2000」(商品名)を用いて全光線透過率を測定した。
JIS K7136:2000に従い、日本電色工業株式会社の濁度計「NDH2000」(商品名)を用いてヘーズを測定した。
JIS K7105:1981に従い、島津製作所社製の色度計「SolidSpec-3700」(商品名)を用いて黄色度指数を測定した。
ハードコート積層シートの第1ハードコート面の水接触角を、KRUSS社の自動接触角計「DSA20」(商品名)を使用し、水滴の幅と高さとから算出する方法(JIS R3257:1999を参照)で測定した。
縦150mm、横50mmの大きさで、ハードコート積層シートのマシン方向が試験片の縦方向となるように試験片を採取した。この試験片を、ハードコート積層シートの第1ハードコートが表面になるようにJIS L0849:2013の学振試験機に置き、学振試験機の摩擦端子に、4枚重ねのガーゼ(川本産業株式会社の医療用タイプ1ガーゼ)で覆ったステンレス板(縦10mm、横10mm、厚み1mm)を取付け、該ステンレス板の縦横面が試験片と接触するようにセットした。このガーゼで覆ったステンレス板に350g荷重を載せ、試験片の第1ハードコート面を、摩擦端子の移動距離60mm、速度1往復/秒の条件で往復1万回擦った後、上記(iv)の方法に従い、当該綿拭箇所の水接触角を測定した。水接触角が100度以上であるときは、更に往復5千回擦った後、上記(iv)の方法に従い、当該綿拭箇所の水接触角を測定する作業を繰り返し、以下の基準で耐擦傷性を評価した。
A:往復2万5千回後でも、水接触角100度以上である。
B:往復2万回後では、水接触角100度以上だが、2万5千回後は、100度未満である。
C:往復1万5千回後では、水接触角100度以上だが、2万回後は、100度未満である。
D:往復1万回後では、水接触角100度以上だが、1万5千回後は、100度未満である。
E:往復1万回後で、水接触角100度未満である。
JIS K5600-5-4に従い、750g荷重の条件で、三菱鉛筆株式会社の鉛筆「ユニ」(商品名)を用い、ハードコート積層シートの第1ハードコート面について測定した。
ハードコート積層シートを、ハードコート積層シートの第1ハードコートが表面になるようにJIS L0849:2013の学振形試験機に置いた。続いて、学振形試験機の摩擦端子に#0000のスチールウールを取り付けた後、500g荷重を載せ、試験片の表面を100往復擦った後、当該摩擦箇所を目視観察する作業を繰り返し、以下の基準で評価した。
A:往復500回後でも傷は認められない。
B:往復400回後では傷は認められないが、往復500回後には傷を認めることができる。
C:往復300回後では傷は認められないが、往復400回後には傷を認めることができる。
D:往復200回後では傷は認められないが、往復300回後には傷を認めることができる。
E:往復100回後では傷は認められないが、往復200回後には傷を認めることができる。
F:往復100回後で傷を認めることができる。
ハードコート積層シートの第1ハードコート側の表面を、蛍光灯の光の入射角をいろいろと変えて当てながら目視観察し、以下の基準で評価した。
◎(非常に良好):表面にうねりや傷がない。間近に光を透かし見ても、曇感がない。
○(良好):間近に光を透かし見ると、僅かな曇感のある箇所がある。
△(やや不良):間近に見ると、表面にうねりや傷を僅かに認める。また曇感がある。
×(不良):表面にうねりや傷を多数認めることができる。また明らかな曇感がある。
JIS K5600-5-6:1999に従い、ハードコート積層シートに第1ハードコート面側から碁盤目の切れ込みを100マス(1マス=1mm×1mm)入れた後、密着試験用テープを碁盤目へ貼り付けて指でしごいた後、剥がした。評価基準はJISの上記規格の表1に従った。
分類0:カットの縁が完全に滑らかで、どの格子の目にも剥れがない。
分類1:カットの交差点における塗膜の小さな剥れがある。クロスカット部分で影響を受ける面積は、明確に5%を上回ることはない。
分類2:塗膜がカットの縁に沿って、及び/又は交差点において剥れている。クロスカット部分で影響を受ける面積は、明確に5%を超えるが15%を上回ることはない。
分類3:塗膜がカットの縁に沿って、部分的又は全面的に大剥れを生じており、及び/又は目のいろいろな部分が、部分的又は全面的に剥れている。クロスカット部分で影響を受ける面積は、明確に15%を超えるが35%を上回ることはない。
分類4:塗膜がカットの縁に沿って、部分的又は全面的に大剥れを生じており、及び/又は数箇所の目が、部分的又は全面的に剥れている。クロスカット部分で影響を受ける面積は、明確に35%を超えるが65%を上回ることはない。
分類5:剥れの程度が分類4を超える場合を本分類とする。
JIS B7753:2007に規定するサンシャインカーボンアーク灯式の耐候性試験機を使用し、JIS A5759:2008の表10の条件(但し、試験片は、縦125mm、横50mmの大きさで、ハードコート積層シートのマシン方向が試験片の縦方向となるように採取したものをそのまま用い、ガラスへの貼り付けは行わなかった。)で、300時間の促進耐候性試験を行った。試験のN数は3とし、全ての試験で、ハードコート積層シートに膨れ、ひび割れ、及び剥がれ等の外観変化がない場合を合格(表には◎と記載)、それ以外は不合格(表には×と記載)とした。
前面板、背面板、及び側面板の各壁面で形成される上部が開口した直方体の金属製治具(大きさは、縦1100mm、横900mm、高さ200mm。)に、ハードコート積層シートを、第1ハードコート面が上になるようにして、上記治具の開口部を完全に覆うように設置・固定した。続いて直径100mm、質量4.11kgの金属球を、ハードコート積層シートの上3000mmの高さから、ハードコート積層シートの開口部を覆う部分の中心付近に印した一辺130mmの正三角形の頂点に、金属球を各1回、合計で3回落下させた。試験のN数は3とし、全ての試験で金属球がハードコート積層シートを貫通しなければ合格(表には◎と記載)、それ以外は不合格(表には×と記載)とした。
コンピュータにより自動制御を行うルーター加工機を使用し、ハードコート積層シートに、直径2mmの真円形の切削孔を設けた。このとき使用したミルは刃先の先端形状が円筒丸型の超硬合金製4枚刃、ニック付きのものであり、刃径は加工箇所に合わせて適宜選択した。続いて切削孔の切削端面を目視又は顕微鏡(100倍)観察し、以下の基準で評価した。
◎(非常に良好):顕微鏡観察でもクラック、ヒゲは認められない
○(良好):顕微鏡観察でもクラックは認められない。しかしヒゲは認められる。
△(やや不良):目視でクラックは認められない。しかし顕微鏡観察ではクラックが認められる。
×(不良):目視でもクラックが認められる。
(A)多官能(メタ)アクリレート
(A-1)ジペンタエリスリトールヘキサアクリレート(6官能)
(A-2)ペンタエリスリトールトリアクリレート(3官能)
(B-1)信越化学工業株式会社のアクリロイル基含有フルオロポリエーテル系撥水剤「KY-1203」(商品名):固形分20質量%
(B-2)ソルベイ(Solvay)社のメタクリロイル基含有フルオロポリエーテル系撥水剤「FOMBLIN MT70」(商品名):固形分70質量%
(C-1)信越化学工業株式会社のN-2-(アミノエチル)-3-アミノプロピルメチルジメトキシシラン「KBM-602」(商品名)
(C-2)信越化学工業株式会社のN-2-(アミノエチル)-3-アミノプロピルトリメトキシシラン「KBM-603」(商品名)
(C-3)信越化学工業株式会社の3-アミノプロピルトリメトキシシラン「KBM-903」(商品名)
(C-4)信越化学工業株式会社の3-メルカプトプロピルメチルジメトキシシラン「KBM-802」(商品名)
(C-5)信越化学工業株式会社の3-グリシドキシプロピルトリメトキシシラン「KBM-403」(商品名)
(D-1)ビニル基を有するシランカップリング剤で表面処理された平均粒子径20nmのシリカ微粒子
(E-1)楠本化成株式会社のシリコン・アクリル共重合体系レベリング剤「ディスパロンNSH-8430HF」(商品名):固形分10質量%
(E-2)ビックケミー・ジャパン株式会社のシリコン・アクリル共重合体系レベリング剤「BYK-3550」(商品名):固形分52質量%
(E-3)ビックケミー・ジャパン株式会社のアクリル重合体系レベリング剤「BYK-399」(商品名):固形分100質量%
(E-4)楠本化成株式会社のシリコン系レベリング剤「ディスパロンLS-480」(商品名):固形分100質量%
(F-1)双邦實業股分有限公司のフェニルケトン系光重合開始剤(1-ヒドロキシシクロヘキシルフェニルケトン)「SB-PI714」(商品名)
(F-2)1-メトキシ-2-プロパノール
(H1-1)上記(A-1)100質量部、上記(B-1)2質量部(固形分換算0.40質量部)、上記(B-2)0.06質量部(固形分換算0.042質量部)、上記(C-1)0.5質量部、上記(F-1)4質量部、及び上記(F-2)100質量部を混合攪拌して塗料を得た。表1に、各成分およびその配合量を示す。
(H2-1)上記(A-2)100質量部、上記(D-1)140質量部、上記(E-1)2質量部(固形分換算0.2質量部)、上記(F-1)17質量部、及び上記(F-2)200質量部を混合攪拌して塗料を得た。表3に、各成分およびその配合量を示す。なお、上記(E-1)については、表に固形分換算の値を記載している。
(a1-1)アクリル系樹脂シート1
三菱瓦斯化学株式会社のアクリル系樹脂「Optimas6000」(商品名)(ガラス転移温度119℃)を用い、図12に示されているようなTダイ22と押出機(図示せず)とを備える装置を使用して、Tダイから上記樹脂の溶融シート23を連続的に押出し、回転する第一鏡面ロール24(溶融シートを抱いて次の移送ロールへと送り出す側のロール。以下同じ。)と、回転する第二鏡面ロール25との間に、上記溶融シートを供給投入し、押圧して、厚さ1mmの透明樹脂シートを得た。このときの設定条件は、第一鏡面ロールの設定温度120℃、第二鏡面ロールの設定温度110℃、Tダイ出口の樹脂温度300℃であった。得られた透明樹脂シートの全光線透過率は92%、ヘーズは0.5%、黄色度指数は0.3、及び引張弾性率は3400MPaであった。ここでの引張弾性率は、JIS K7127:1999に従い、試験片タイプ1B、引張速度50mm/分の条件で測定した(以下の製造例でも同様とした)。
エボニック社のポリ(メタ)アクリルイミド系樹脂「PLEXIMID TT50」(商品名)(ガラス転移温度154℃)を用い、図12に示されているようなTダイ22と押出機(図示せず)とを備える装置を使用して、Tダイから上記樹脂の溶融シート23を連続的に押出し、回転する第一鏡面ロール24と回転する第二鏡面ロール25との間に、上記溶融シートを供給投入し、押圧して、厚さ1mmの透明樹脂シートを得た。このときの設定条件は、第一鏡面ロールの設定温度140℃、第二鏡面ロールの設定温度120℃、Tダイ出口の樹脂温度300℃であった。得られた透明樹脂シートの全光線透過率は92%、ヘーズは0.5%、黄色度指数は0.3、及び引張弾性率は4300MPaであった。
住化スタイロンポリカーボネート株式会社の芳香族ポリカーボネート「カリバー301-4」(商品名)(ガラス転移温度151℃)を用い、図12に示されているようなTダイ22と押出機(図示せず)とを備える装置を使用して、Tダイから上記樹脂の溶融シート23を連続的に押出し、回転する第一鏡面ロール24と回転する第二鏡面ロール25との間に、上記溶融シートを供給投入し、押圧して、厚さ1mmの透明樹脂シートを得た。このときの設定条件は、第一鏡面ロールの設定温度140℃、第二鏡面ロールの設定温度120℃、Tダイ出口の樹脂温度300℃であった。得られた透明樹脂シートの全光線透過率は90%、ヘーズは0.6%、黄色度指数は0.5、及び引張弾性率は2300MPaであった。
イーストマンケミカルカンパニー社の非結晶性ポリエステル系樹脂であるPETG樹脂「Cadence GS1」(商品名)(ガラス転移温度81℃)を用い、図12に示されているようなTダイ22と押出機(図示せず)とを備える装置を使用して、Tダイから上記樹脂の溶融シート23を連続的に押出し、回転する第一鏡面ロール24と回転する第二鏡面ロール25との間に、上記溶融シートを供給投入し、押圧して、厚さ1mmの透明樹脂シートを得た。このときの設定条件は、第一鏡面ロールの設定温度80℃、第二鏡面ロールの設定温度40℃、Tダイ出口の樹脂温度200℃であった。得られた透明樹脂シートの全光線透過率は89%、ヘーズは1.3%、黄色度指数は0.4、及び引張弾性率は1500MPaであった。
イーストマンケミカルカンパニー社の非結晶性ポリエステル系樹脂「トライタンFX200」(商品名)(ガラス転移温度119℃)を用い、図12に示されているようなTダイ22と押出機(図示せず)とを備える装置を使用して、Tダイから上記樹脂の溶融シート23を連続的に押出し、回転する第一鏡面ロール24と回転する第二鏡面ロール25との間に、上記溶融シートを供給投入し、押圧して、厚さ1mmの透明樹脂シートを得た。このときの設定条件は、第一鏡面ロールの設定温度80℃、第二鏡面ロールの設定温度40℃、Tダイ出口の樹脂温度230℃であった。得られた透明樹脂シートの全光線透過率は90%、ヘーズは1.2%、黄色度指数は0.4、及び引張弾性率は1500MPaであった。
押出機とTダイとを備える2種3層マルチマニホールド方式の共押出製膜装置を使用し、三菱瓦斯化学株式会社のアクリル系樹脂「Optimas7500」(商品名)(ガラス転移温度119℃)を両外層とし、住化スタイロンポリカーボネート株式会社の芳香族ポリカーボネート「カリバー301-4」(商品名)(ガラス転移温度151℃)を中間層とする溶融積層シートをTダイから連続的に押出し、回転する第一鏡面ロールと、回転する第二鏡面ロールとの間に、上記溶融積層シートを供給投入し、押圧して、全厚み1mm、両外層の厚み0.1mm、中間層の厚み0.8mmの透明樹脂シートを得た。このときの設定条件は、第一鏡面ロールの設定温度120℃、第二鏡面ロールの設定温度110℃、Tダイ出口の樹脂温度300℃であった。得られた透明樹脂シートの全光線透過率は91%、ヘーズは0.6%、黄色度指数は0.5、及び引張弾性率は2600MPaであった。
上記(a1-1)のアクリル系樹脂シート1の両面にコロナ放電処理を行った。両面とも濡れ指数は64mN/mであった。次に、上記(a1-1)のアクリル系樹脂シート1の一方の面の上に、ダイ方式の塗工装置を使用して、上記(H2-1)の第2ハードコート形成用塗料をウェット厚み40μm(硬化後厚み22μm)となるように塗布した。次に、炉内温度90℃に設定した乾燥炉を、入口から出口までパスするのに要する時間が1分間となるライン速度でパスさせた後、高圧水銀灯タイプの紫外線照射装置11と直径25.4cmの鏡面金属ロール12とを対置した硬化装置を使用し(図10参照)、鏡面金属ロール12の温度90℃、積算光量80mJ/cm2の条件で処理した。図10中、13はウェブ、14は抱き角を示す。上記(H2-1)の第2ハードコート形成用塗料のウェット塗膜は、指触乾燥状態の塗膜になった。次に、上記(H2-1)の第2ハードコート形成用塗料の指触乾燥状態の塗膜の上に、ダイ方式の塗工装置を使用して、上記(H1-1)の第1ハードコート形成用塗料をウェット厚み4μm(硬化後厚み2μm)となるように塗布した。次に、炉内温度80℃に設定した乾燥炉を、入口から出口までパスするのに要する時間が1分間となるライン速度でパスさせた後、高圧水銀灯タイプの紫外線照射装置11と直径25.4cmの鏡面金属ロール12とを対置した硬化装置を使用し(図10参照)、鏡面金属ロール12の温度60℃、積算光量480mJ/cm2の条件で処理し、第1ハードコート、及び第2ハードコートを形成した。続いて、上記(a1-1)のアクリル系樹脂シート1の他方の面の上に第3ハードコートを、第2ハードコートの形成に用いたのと同じ塗料(例1は上記(H2-1))を用い、ダイ方式の塗工装置を使用して、硬化後厚み22μmとなるように形成し、ハードコート積層シートを得た。このハードコート積層シートに対し、物性の測定・評価のための上記試験(i)~(xii)を行った。結果を表5に示す。
上記(H1-1)の替わりに表5~7の何れか1に示す塗料を用いたこと以外は、全て例1と同様にハードコート積層シートの製造及び物性の測定・評価を行った。結果を表5~7の何れか1に示す。
上記(H2-1)の替わりに表7~9の何れか1に示す塗料を用いたこと以外は、全て例1と同様にハードコート積層シートの製造及び物性の測定・評価を行った。結果を表7~9の何れか1に示す。
上記(a1-1)の替わりに表9に示す透明樹脂シートを用いたこと以外は、全て例1と同様にハードコート積層シートの製造及び物性の測定・評価を行った。結果を表9に示す。
第1ハードコートの硬化後厚みを、表10に示すように変更したこと以外は、全て例1と同様にハードコート積層シートの製造及び物性の測定・評価を行った。結果を表10に示す。なお、表10において、ハードコートを「HC」と略記する。
第2ハードコートの硬化後厚みを、表10に示すように変更し、第3ハードコートの硬化後厚みを第2ハードコートの硬化後厚みと同じに変更したこと以外は、全て例1と同様にハードコート積層シートの製造及び物性の測定・評価を行った。結果を表10に示す。
透明粘着剤に関する物性の測定・評価方法について説明する。
(I)初期密着強度
試験板として上記例1のハードコート積層シートから、そのマシン方向が試験片の長さ方向と一致するように採取した試験片(幅50mm、長さ125mm)を用い、試験片の第3ハードコート側の面を化粧シートとの貼合面としたこと以外は、JIS A5759:2008に従い、300mm/分の速度で、温度23℃における、試験板に対する180度引き剥がし粘着力を測定した。初期密着強度は、好ましくは15N/25mm以上、より好ましくは20N/25mm以上、更に好ましくは25N/25mm以上である。またリワーク性を考慮し、好ましくは50N/25mm以下、より好ましくは45N/25mm以下であってよい。
試験片に対して、温度60℃、10分間の熱処理を行った後、粘着力を測定したこと以外は、上記試験(I)と同様に行い、熱処理後の化粧シートの粘着力を測定した。耐熱密着性(熱処理後の粘着力)は、好ましくは、5N/25mm以上、より好ましくは10N/25mm以上、更に好ましくは15N/25mm以上である。
試験片に対して、温度-30℃、相対湿度90%の環境下に6時間曝した後、温度60℃、相対湿度90%の環境下に6時間曝す処理を1サイクルとして、合計3サイクルの処理を行った後、粘着力を測定したこと以外は、上記試験(I)と同様に行い、ヒートサイクル後の化粧シートの粘着力を測定した。続いて上記試験(I)の値に対するヒートサイクル後の粘着力の割合(残率)を、算出した。耐ヒートサイクル性(ヒートサイクル後の粘着力の残率)は、好ましくは70%以上、より好ましくは80%以上、更に好ましくは90%以上である。該残率の上限は、特にない。
試験片に対して、濃度5質量%、温度25℃の水酸化ナトリウム水溶液に、24時間の浸漬処理を行った後、粘着力を測定したこと以外は、上記試験(I)と同様に行い、浸漬処理後の化粧シートの粘着力を測定した。続いて上記試験(I)の値に対する浸漬処理後の粘着力の割合(残率)を、算出した。耐アルカリ性(浸漬処理後の粘着力の残率)は、好ましくは70%以上、より好ましくは80%以上、更に好ましくは90%以上である。該残率の上限は、特にない。
上記試験(I)と同様に作成した試験片の化粧シート側から、ステンレス製の直径1mmの球を、1Nの力で押し付けながら、上記ハードコート積層シート側から化粧シートを目視観察し、以下の基準で評価した。
○(良好):球の押し付け箇所が視認できない。
×(不良):明確に、球を押し付けている箇所が視認できる。
試験片に対して、温度60℃、相対湿度98%の環境下に400時間曝した後、粘着力を測定したこと以外は、上記試験(I)と同様に行い、湿熱処理後の化粧シートの粘着力を測定した。続いて上記試験(I)の値に対する湿熱処理後の粘着力の割合(残率)を、算出した。耐湿熱剥離性(湿熱処理後の粘着力の残率)は、好ましくは70%以上、より好ましくは80%以上、更に好ましくは90%以上である。該残率の上限は、特にない。
上記試験(VI)において、湿熱処理後の粘着力を測定する前に、粘着剤層を目視観察し、以下の基準で評価した。
○(良好):粘着剤層の透明性に暴露前と変化は認められない。
△(やや不良):暴露前と比較すると、白化したことが認められるが、白化の程度は大きくない。
×(不良):かなりの程度まで白化したことが認められる。
試験片に対して、温度50℃の水中において、240時間の浸漬処理を行った後、粘着力を測定したこと以外は、上記試験(I)と同様に行い、温水処理後の化粧シートの粘着力を測定した。続いて上記試験(I)の値に対する温水処理後の粘着力の割合(残率)を、算出した。耐温水性(温水処理後の粘着力の残率)は、好ましくは70%以上、より好ましくは80%以上、更に好ましくは90%以上である。該残率の上限は、特にない。
上記試験(VIII)において、温水処理後の粘着力を測定する前に、粘着剤層を目視観察し、以下の基準で評価した。
○(良好):粘着剤層の透明性に浸漬処理前と変化は認められない。
△(やや不良):浸漬処理前と比較すると、白化したことが認められるが、白化の程度は大きくない。
×(不良):かなりの程度まで白化したことが認められる。
(P)ガラス転移温度-50~-25℃のアクリル系重合体
(P-1)藤倉化成株式会社の「アクリベースLKG-1010」(商品名):ガラス転移温度-34℃、酸価1.9mgKOH/g、重量平均分子量85万
(P-2)藤倉化成株式会社の「アクリベースLKG-1007」(商品名):ガラス転移温度-44℃、酸価2.1mgKOH/g、重量平均分子量100万
(P-3)藤倉化成株式会社の「アクリベースLKG-1001」(商品名):ガラス転移温度-40℃、酸価7mgKOH/g、重量平均分子量100万
(P’-1)藤倉化成株式会社の「アクリベースLKG-1011」(商品名):ガラス転移温度-53℃、酸価1.9mgKOH/g、重量平均分子量100万
(P’-2)藤倉化成株式会社の「アクリベースLKG-1101」(商品名):ガラス転移温度-22℃、酸価0.3mgKOH/g、重量平均分子量43万
(Q-1)信越化学工業株式会社の3-グリシドキシプロピルトリメトキシシラン「KBM-403」(商品名)
(Q-2)信越化学工業株式会社の3-グリシドキシプロピルトリエトキシシラン「KBE-403」(商品名)
(Q’-1)東レ・ダウコーニング株式会社の3-メタクリロキシプロピルトリメトキシシラン「Z-6030」(商品名)
(R-1)1,3-ビス(N,N’-ジグリシジルアミノメチル)シクロヘキサン
(S-1)アルミニウムトリスアセチルアセトネート
固形分換算で上記成分(P-1)100質量部、上記成分(Q-1)0.057質量部、上記成分(R-1)0.077質量部、及び上記成分(S-1)0.023質量部を混合撹拌して透明粘着剤を得た。次に、厚み80μmの着色ポリ塩化ビニル系樹脂組成物シートの片面の上に、上記で得た透明粘着剤からなる層を、乾燥後の層厚みが50μmとなるように設け、粘着剤層の付いた化粧シートを得た。この化粧シートに対して上記試験(I)~(IX)を行った。上記透明粘着剤の配合組成および物性の測定・評価結果を、表11に示す。
粘着剤の配合を表11~13の何れか1に示すように変更したこと以外は、全て例44と同様に透明粘着剤の調製および物性の測定・評価を行った。これらの透明粘着剤の配合組成および物性の測定・評価結果を、表11~13の何れか1に示す。
(1)物品本体の正面部を開閉する扉体であって、
正面を構成する正面パネルと、上記正面パネルの外側端部の少なくとも一部を支持する枠体と、背面を構成する背面パネルを有し;
上記正面パネルは、正面側の表層から順に透明樹脂シートの層、透明粘着剤層、及び化粧シートをこの順に有し;
上記枠体は略垂直方向に物品の内部へと延出する支持板を有し;
上記正面パネルは上記支持板に両面粘着フィルムにより貼合され;
上記支持板の扉体の内部への延出長さは10mm以上であり;
上記支持板の厚みは1mm以上であり;
上記支持板先端縁の正面側角の曲率半径は0.1~10mmであり;
上記両面粘着フィルムは、上記支持板の先端縁から、扉体の内部へと延出しており;
上記両面粘着フィルムの厚みは200μm以上である、扉体。
(2)扉体の正面の少なくとも一部にディスプレイを有する、上記(1)項に記載の扉体。
(3)上記正面パネル、上記枠体、及び上記背面パネルにより形成される扉体の内部に断熱材が充填されている、上記(1)又は(2)項に記載の扉体。
(4)上記(1)~(3)項の何れか1に記載の扉体を含む冷蔵庫。
(1)物品本体の正面部を開閉する扉体であって、
正面を構成する正面パネルと、上記正面パネルの外側端部の少なくとも一部を支持する枠体と、背面を構成する背面パネルを有し;
上記正面パネルは、透明粘着剤を含み;
上記透明粘着剤が、
(P)ガラス転移温度-50~-25℃のアクリル系重合体100質量部、
(Q)エポキシ基を有するシランカップリング剤0.01~3質量部、
(R)1分子中に2以上のエポキシ基を有する化合物0.01~0.9質量部、及び
(S)有機多価金属化合物0.01~0.5質量部
を含む、扉体。
(2)扉体の正面の少なくとも一部にディスプレイを有する、上記(1)項に記載の扉体。
(3)上記正面パネル、上記枠体、及び上記背面パネルにより形成される扉体の内部に断熱材が充填されている、上記(1)又は(2)項に記載の扉体。
(4)上記(1)~(3)項の何れか1に記載の扉体を含む冷蔵庫。
1a:枠体の外周板
1b:枠体の支持板
1c:支持板先端縁の正面側角
1d:支持板の長さ
1e:支持板の厚み
1f:枠体の背面パネルと一体成形された部分
2:ハードコート積層シート
3:透明粘着剤層
4:化粧シート
5:背面パネル
5a:ディスプレイユニットの懸架台
5b:分割され、かつ枠体の一部と一体成形された背面パネルの部分
5c:分割された背面パネルの部分
6:両面粘着フィルム
6a:両面粘着フィルムが支持板先端縁から延出している長さ
7:断熱材
8:ディスプレイユニット
9:両面粘着フィルム
10:ケーブル
11:紫外線照射装置
12:鏡面金属ロール
13:ウェブ
14:抱き角
15:第1ハードコート
16:第2ハードコート
17:透明樹脂シートの層
18:第3ハードコート
19:透明粘着剤層
20:印刷層
21:着色樹脂シートの層
22:Tダイ
23:溶融シート
24:第一鏡面ロール
25:第二鏡面ロール
Claims (10)
- 物品本体の正面部を開閉する扉体であって、
正面を構成する正面パネルと、上記正面パネルの外側端部の少なくとも一部を支持する枠体と、背面を構成する背面パネルを有し;
上記正面パネルは、ハードコート積層シートを含み;
上記ハードコート積層シートは、正面側の表層側から順に第1ハードコート、第2ハードコート、及び透明樹脂シートの層を有し;
上記第1ハードコートは、
(A)多官能(メタ)アクリレート100質量部、
(B)撥水剤0.01~7質量部、及び
(C)シランカップリング剤0.01~10質量部を含み、かつ無機粒子を含まない塗料から形成されており;
上記第2ハードコートは、
(A)多官能(メタ)アクリレート100質量部、及び
(D)平均粒子径1~300nmの無機微粒子50~300質量部を含む塗料から形成されている、
扉体。 - 扉体の正面の少なくとも一部にディスプレイを有する、請求項1に記載の扉体。
- 上記(C)シランカップリング剤が、アミノ基を有するシランカップリング剤、及びメルカプト基を有するシランカップリング剤からなる群から選択される1種以上を含む、請求項1又は2に記載の扉体。
- 上記(B)撥水剤が、(メタ)アクリロイル基含有フルオロポリエーテル系撥水剤を含む、請求項1~3の何れか1項に記載の扉体。
- 上記第2ハードコートを形成する塗料が、更に(E)レベリング剤0.01~1質量部を含む、請求項1~4の何れか1項に記載の扉体。
- 物品本体の正面部を開閉する扉体であって、
正面を構成する正面パネルと、上記正面パネルの外側端部の少なくとも一部を支持する枠体と、背面を構成する背面パネルを有し;
上記正面パネルは、ハードコート積層シートを含み;
上記ハードコート積層シートは、正面側の表層側から順に第1ハードコート、第2ハードコート、及び透明樹脂シートの層を有し;
上記第1ハードコートは無機粒子を含まない塗料から形成されており;
上記第2ハードコートは無機粒子を含む塗料から形成されており;
下記、(i)~(iii):
(i)全光線透過率80%以上;
(ii)ヘーズ5%以下;
(iii)黄色度指数3以下
を満たす、扉体。 - 上記ハードコート積層シートが、更に下記(iv)及び(v):
(iv)上記第1ハードコート表面の水接触角が100度以上;
(v)上記第1ハードコート表面の往復2万回綿拭後の水接触角が100度以上
を満たす、請求項6に記載の扉体。 - 上記正面パネルが、上記透明樹脂シートの層の背面側の少なくとも一部に、透明粘着剤層、及び化粧シートの層をこの順に有し;
上記透明粘着剤が、
(P)ガラス転移温度-50~-25℃のアクリル系重合体100質量部、
(Q)エポキシ基を有するシランカップリング剤0.01~3質量部、
(R)1分子中に2以上のエポキシ基を有する化合物0.01~0.9質量部、及び
(S)有機多価金属化合物0.01~0.5質量部
を含む、請求項1~7の何れか1項に記載の扉体。 - 上記正面パネル、上記枠体、及び上記背面パネルにより形成される扉体の内部に断熱材が充填されている、請求項1~8の何れか1項に記載の扉体。
- 請求項1~9の何れか1項に記載の扉体を含む冷蔵庫。
Priority Applications (6)
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CN201680068951.XA CN108307624B (zh) | 2015-11-25 | 2016-11-24 | 门体 |
EP16868622.8A EP3381683B1 (en) | 2015-11-25 | 2016-11-24 | Door body |
JP2017552695A JP6903588B2 (ja) | 2015-11-25 | 2016-11-24 | 扉体 |
US15/779,483 US11241866B2 (en) | 2015-11-25 | 2016-11-24 | Door body |
KR1020187014877A KR102571294B1 (ko) | 2015-11-25 | 2016-11-24 | 문 개체 |
US17/557,414 US11774166B2 (en) | 2015-11-25 | 2021-12-21 | Door body |
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JP2015229330 | 2015-11-25 | ||
JP2015-229330 | 2015-11-25 | ||
JP2016-029583 | 2016-02-19 | ||
JP2016029583 | 2016-02-19 | ||
JP2016046959 | 2016-03-10 | ||
JP2016-046959 | 2016-03-10 |
Related Child Applications (2)
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US15/779,483 A-371-Of-International US11241866B2 (en) | 2015-11-25 | 2016-11-24 | Door body |
US17/557,414 Continuation-In-Part US11774166B2 (en) | 2015-11-25 | 2021-12-21 | Door body |
Publications (1)
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WO2017090679A1 true WO2017090679A1 (ja) | 2017-06-01 |
Family
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PCT/JP2016/084794 WO2017090679A1 (ja) | 2015-11-25 | 2016-11-24 | 扉体 |
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US (1) | US11241866B2 (ja) |
EP (1) | EP3381683B1 (ja) |
JP (1) | JP6903588B2 (ja) |
KR (1) | KR102571294B1 (ja) |
CN (2) | CN111852277A (ja) |
TW (1) | TWI745316B (ja) |
WO (1) | WO2017090679A1 (ja) |
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Also Published As
Publication number | Publication date |
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EP3381683A4 (en) | 2019-06-19 |
TWI745316B (zh) | 2021-11-11 |
KR20180085731A (ko) | 2018-07-27 |
CN108307624B (zh) | 2020-08-04 |
US20180257347A1 (en) | 2018-09-13 |
JPWO2017090679A1 (ja) | 2018-09-27 |
EP3381683A1 (en) | 2018-10-03 |
US11241866B2 (en) | 2022-02-08 |
KR102571294B1 (ko) | 2023-08-25 |
CN111852277A (zh) | 2020-10-30 |
TW201718781A (zh) | 2017-06-01 |
CN108307624A (zh) | 2018-07-20 |
EP3381683B1 (en) | 2021-07-14 |
JP6903588B2 (ja) | 2021-07-14 |
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