WO2012020673A1 - 剥離剤組成物、剥離シート及び粘着体 - Google Patents
剥離剤組成物、剥離シート及び粘着体 Download PDFInfo
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- WO2012020673A1 WO2012020673A1 PCT/JP2011/067735 JP2011067735W WO2012020673A1 WO 2012020673 A1 WO2012020673 A1 WO 2012020673A1 JP 2011067735 W JP2011067735 W JP 2011067735W WO 2012020673 A1 WO2012020673 A1 WO 2012020673A1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
- C08L33/08—Homopolymers or copolymers of acrylic acid esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J167/00—Adhesives based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Adhesives based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
- C09J2433/005—Presence of (meth)acrylic polymer in the release coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/005—Presence of polyester in the release coating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2839—Web or sheet containing structurally defined element or component and having an adhesive outermost layer with release or antistick coating
Definitions
- the present invention relates to a release agent composition, a release sheet, and an adhesive body, and more particularly, to a non-silicone release agent composition, an release sheet, and an adhesive body that are used for electrical parts and the like.
- the pressure-sensitive adhesive sheet usually includes a pressure-sensitive adhesive sheet base material and a pressure-sensitive adhesive layer provided on the base material, and a release sheet is attached to the pressure-sensitive adhesive layer before being attached to an adherend such as an electrical component. In general, the adhesive layer is protected.
- a release layer is provided on the surface of the release sheet (that is, the contact surface with the adhesive layer) in order to improve the peelability when the release sheet is peeled off.
- a silicone resin is usually used (for example, see Patent Document 1).
- a silicone compound such as a low molecular weight silicone resin, siloxane, or silicone oil in the release layer may migrate to the adhesive layer.
- the release sheet is wound into a roll after production.
- the back surface of the release sheet and the release layer are in contact with each other, and the silicone compound in the release layer may be transferred to the back surface of the release sheet. is there.
- the silicone compound transferred to the back surface of the release sheet may further transfer to the pressure-sensitive adhesive sheet substrate when the release sheet is wound on the roll after being attached to the pressure-sensitive adhesive sheet.
- the silicone compound transferred to the pressure-sensitive adhesive layer or the pressure-sensitive adhesive sheet substrate may be gradually vaporized after the attachment.
- the vaporized silicone compound is deposited on the surface of the electrical contact portion by an arc generated near the electrical contact portion of the electrical component, for example, and becomes a fine silicone compound layer, which may cause poor electrical conductivity in the electrical component. is there.
- the pressure-sensitive adhesive sheet is affixed to a hard disk device, the vaporized silicone compound may accumulate on the magnetic head, the disk surface, etc., and may cause a read / write failure of the hard disk.
- non-silicone release agents that do not contain a silicone compound such as olefin resin release agents and long-chain alkyl release agents has been promoted (for example, (See Patent Documents 2 and 3).
- these non-silicone release agents are inferior in heat resistance, there is a problem that it is difficult to form an adhesive layer by applying a pressure-sensitive adhesive directly on the release layer and then drying by heating.
- a release sheet using a non-silicone release agent also has a problem that blocking between both sides of the release sheet is likely to occur when the roll is stored in a roll shape and stored.
- the present invention has been made in view of the above problems, and causes blocking between both surfaces of the release sheet when the release sheet is wound and stored in a roll shape without adversely affecting the electrical components and the like. Further, it is an object to provide a release agent composition, a release sheet and a pressure-sensitive adhesive having excellent peelability and heat resistance.
- the release agent composition according to the present invention contains a polyester resin (A), an acrylic polymer (B) containing a structural unit represented by the following general formula (1), and a cross-linking agent (C).
- a polyester resin (A) an acrylic polymer (B) containing a structural unit represented by the following general formula (1)
- a cross-linking agent (C) When the blending amount of the resin (A) is A parts by mass and the blending amount of the acrylic polymer (B) is B parts by mass, the mass ratio A / B is in the range of 50/50 to 95/5.
- R 1 represents a hydrogen atom or a methyl group, and R 2 represents an alkyl group having 12 to 16 carbon atoms.
- the acrylic polymer (B) should further contain a structural unit having a functional group selected from the group consisting of a hydroxyl group, an amino group, and a carboxyl group.
- the number average molecular weight of the polyester resin (A) is, for example, 500 to 10,000, and the mass average molecular weight of the acrylic polymer (B) is, for example, 70,000 to 2,000,000. Moreover, it is preferable that a polyester resin (A) has a hydroxyl group as a functional group.
- the crosslinker (C) is preferably a polyfunctional amino compound, a polyfunctional isocyanate compound, a polyfunctional epoxy compound, or a polyfunctional metal compound.
- the blending amount of the crosslinking agent (C) is preferably 1 to 30 parts by mass with respect to 100 parts by mass of the total amount of the polyester resin (A) and the acrylic polymer (B). It is better that the release agent composition does not substantially contain a silicone compound.
- the release sheet according to the present invention includes a base material and a release layer provided on the base material and made of a cured product of the above-described release agent composition.
- the thickness of the release layer is, for example, 50 nm to 2 ⁇ m.
- the pressure-sensitive adhesive body according to the present invention is characterized by having the release sheet and a pressure-sensitive adhesive layer substantially free of a silicone compound provided on the release layer of the release sheet.
- release agent composition in the present invention, it is possible to provide a release agent composition, release sheet, and pressure-sensitive adhesive having excellent blocking resistance, peelability, and heat resistance without adversely affecting electric parts and the like.
- the release agent composition in one embodiment of the present invention contains a polyester resin (A), an acrylic polymer (B), and a crosslinking agent (C).
- the polyester resin (A) is not particularly limited, and can be appropriately selected from known materials known as polyester resins.
- a specific polyester resin a resin obtained by a condensation reaction between a polyhydric alcohol and a polybasic acid, which is modified with a condensate of a dibasic acid and a dihydric alcohol or a non-drying oil fatty acid or the like.
- Non-convertible polyester resins, and convertible polyester resins that are condensates of dibasic acids and trivalent or higher alcohols can be used, and any of these can be used in the present invention.
- polyhydric alcohol used as a raw material for the polyester resin examples include dihydric alcohols such as ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, trimethylene glycol, tetramethylene glycol, and neopentyl glycol, glycerin, trimethylolethane, and triethylene glycol.
- dihydric alcohols such as ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, trimethylene glycol, tetramethylene glycol, and neopentyl glycol
- glycerin examples include trihydric alcohols such as methylolpropane
- dihydric alcohols such as diglycerin, triglycerin, pentaerythritol, dipentaerythritol, mannitol, and sorbit. These may be used individually by 1 type and may be used in combination of 2 or more type.
- polybasic acid examples include aromatic polybasic acids such as phthalic anhydride, terephthalic acid, isophthalic acid, and trimetic anhydride, aliphatic saturated polybasic acids such as succinic acid, adipic acid, and sebacic acid, maleic acid, Dials such as aliphatic unsaturated polybasic acids such as maleic anhydride, fumaric acid, itaconic acid, citraconic anhydride, cyclopentadiene-maleic anhydride adduct, terpene-maleic anhydride adduct, rosin-maleic anhydride adduct -The polybasic acid by Alder reaction etc. are mentioned. These may be used individually by 1 type and may be used in combination of 2 or more type.
- non-drying oil fatty acid that is a modifying agent
- examples of the non-drying oil fatty acid that is a modifying agent include octylic acid, lauric acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, eleostearic acid, ricinoleic acid, dehydrated ricinoleic acid, and palm.
- the polyester resin (A) preferably has a reactive functional group in order to react with the crosslinking agent (C), and the reactive functional group is more preferably a hydroxyl group.
- the hydroxyl value of the polyester resin (A) is preferably 5 to 500 mgKOH / g, and more preferably 10 to 300 mgKOH / g.
- the number average molecular weight of the polyester resin (A) is preferably 500 to 10,000, and more preferably 1,000 to 5,000. Since the polyester resin (A) has a relatively low number average molecular weight, the network structure when the release agent composition is crosslinked with the crosslinking agent (C) tends to become dense, and the acrylic polymer (B). Segregation to the peeling surface described later tends to occur.
- the acrylic polymer (B) includes a structural unit represented by the following general formula (1).
- R 1 represents a hydrogen atom or a methyl group
- R 2 represents an alkyl group having 12 to 16 carbon atoms.
- R 2 is preferably an alkyl group of straight chain in order to improve the peel performance and the number of carbon atoms in R 2 is better was 12-14.
- Examples of the monomer for forming the structural unit of the general formula (1) include (meth) acrylic acid esters in which the ester moiety is a long-chain alkyl group having 12 to 16 carbon atoms. Specifically, lauryl ( And (meth) acrylate, myristyl (meth) acrylate, palmityl (meth) acrylate, and the like. These may be used alone or in combination of two or more.
- the content of the structural unit represented by the general formula (1) in the acrylic polymer (B) is preferably 80% by mass or more, more preferably 90% by mass or more, and 95% by mass or more. It is particularly preferred.
- the acrylic polymer (B) may contain a structural unit derived from a vinyl monomer containing a reactive functional group in order to react with the crosslinking agent (C).
- the content of the structural unit derived from the vinyl monomer containing a reactive functional group in the acrylic polymer (B) is preferably 0.01 to 20% by mass, and preferably 0.1 to 10% by mass. More preferred is 0.2 to 5% by mass.
- a reactive functional group a hydroxyl group, an amino group, a carboxyl group, a thiol group etc. are mentioned, for example. Such reactive functional groups may be contained singly or in combination of two or more. Among these functional groups, a hydroxyl group, an amino group, and a carboxyl group are preferable.
- the acrylic polymer (B) contains a structural unit derived from a vinyl monomer containing a reactive functional group
- the primary structure may be a random copolymer or a block copolymer. Good.
- the peeling force of the release agent to the adhesive can be controlled.
- the release agent can be lightly released by reducing the proportion of the vinyl monomer having a reactive functional group.
- Examples of the vinyl monomer containing a reactive functional group described above include hydroxyl group-containing (meth) acrylates such as hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, and hydroxybutyl (meth) acrylate; Carboxyl group-containing (meth) acrylates such as (meth) acryloxyethyl pyromellitic acid, 4- (meth) acryloxyethyl trimellitic acid, 2- (meth) acryloyloxybenzoic acid; aminoethyl (meth) acrylate, ethylamino Primary to secondary amino group-containing (meth) acrylates such as ethyl (meth) acrylate, aminopropyl (meth) acrylate, ethylaminopropyl (meth) acrylate; thiol groups including 2- (methylthio) ethyl methacrylate ( Meta) Acry (Meth) acrylic acid esters such
- the acrylic polymer (B) may contain the structural unit represented by the following general formula (2) in addition to the above structural unit.
- the content of the structural unit represented by the general formula (2) in the acrylic polymer (B) is 0 to 20% by mass.
- R 1 represents a hydrogen atom or a methyl group
- R 3 represents an alkyl group having 1 to 11 carbon atoms
- the alkyl group includes a fluorine atom, an oxygen atom, or a nitrogen atom. May be.
- the mass average molecular weight of the acrylic polymer (B) is preferably 70,000 to 2,000,000, and more preferably 90,000 to 1,000,000. By setting the mass average molecular weight in such a range, segregation of the acrylic polymer (B) to the release surface described later can easily occur, and the release performance of the release agent can be improved.
- the mass ratio A / B is 50/50 to 95 / The range is 5.
- the mass ratio A / B decreases segregation on the release surface of the acrylic polymer (B), and the release performance of the release agent cannot be improved.
- the mass ratio A / B is preferably 60/40 to 90/10 in order to obtain better peeling performance and blocking resistance.
- the crosslinker (C) is preferably a polyfunctional amino compound, a polyfunctional isocyanate compound, a polyfunctional epoxy compound, or a polyfunctional metal compound.
- the crosslinking agent (C) reacts with a reactive functional group of the polyester resin (A) or the acrylic polymer (B) to cure the release agent to form a cured film.
- polyfunctional amino compound examples include melamine resins such as methylated melamine resins and butylated melamine resins; urea resins such as methylated urea resins and butylated urea resins; benzoguanamine resins such as methylated benzoguanamine resins and butylated benzoguanamine resins; Examples thereof include diamines such as ethylenediamine, tetramethylenediamine, hexamethylenediamine, N, N′-diphenylethylenediamine, and p-xylylenediamine.
- melamine resins such as methylated melamine resins and butylated melamine resins
- urea resins such as methylated urea resins and butylated urea resins
- benzoguanamine resins such as methylated benzoguanamine resins and butylated benzoguanamine resins
- diamines such as ethylenediamine, tetramethylened
- polyfunctional isocyanate compound examples include diphenylmethane diisocyanate (MDI), tolylene diisocyanate (TDI), hexamethylene diisocyanate (HDI), isophorone diisocyanate (IPDI), trimethylhexamethylene diisocyanate (TMDI), xylene diisocyanate (XDI), Examples include naphthalene diisocyanate (NDI), trimethylolpropane (TMP) adduct TDI, TMP adduct HDI, TMP adduct IPDIT, and TMP adduct XDI.
- MDI diphenylmethane diisocyanate
- TDI tolylene diisocyanate
- HDI hexamethylene diisocyanate
- IPDI isophorone diisocyanate
- TMDI trimethylhexamethylene diisocyanate
- XDI xylene diisocyanate
- polyfunctional epoxy compound examples include N, N, N ′, N′-tetraglycidylmetaxylenediamine, 1,3-bis (N, N-diglycidylaminomethyl) cyclohexane, and the like.
- polyfunctional metal compound examples include aluminum chelate compounds such as aluminum trisacetylacetonate, aluminum ethylacetoacetate / diisopropylate; titanium tetraacetylacetonate, titanium acetylacetonate, titanium octylene glycolate, tetraisopropoxy
- aluminum chelate compounds such as aluminum trisacetylacetonate, aluminum ethylacetoacetate / diisopropylate
- titanium chelate compounds such as titanium and tetramethoxy titanium; and trimethoxy aluminum.
- the blending amount of the crosslinking agent (C) is preferably 1 to 30 parts by mass with respect to 100 parts by mass of the total amount of the polyester resin (A) and the acrylic polymer (B).
- a known acidic catalyst such as hydrochloric acid or p-toluenesulfonic acid may be added to the release agent composition as desired.
- the release agent composition in the present embodiment does not substantially contain a silicone compound so as not to adversely affect electric parts and the like.
- a silicone compound is not contained substantially means that the quantity of a silicone compound becomes like this. Preferably, it is 500 microgram / g or less, More preferably, it is 100 microgram / g or less.
- the release sheet in one embodiment of the present invention includes a base material and a release layer made of a cured product of the release agent composition formed on the base material.
- the release layer is formed on the substrate by, for example, applying a release agent composition diluted with an organic solvent or the like onto the substrate and then curing it by heat drying or the like.
- any base material that is usually used can be used without any particular limitation.
- polyester films such as polyethylene terephthalate are particularly preferable from the viewpoints of heat resistance, strength, adhesion to the release layer, and the like.
- the thickness of the base material varies depending on various uses and the base material.
- a resin film when used as the base material, it is usually about 5 to 300 ⁇ m, preferably about 20 to 200 ⁇ m.
- the basis weight is usually about 20 to 450 g / m 2 , preferably about 40 to 220 g / m 2 .
- the thickness of the release layer is, for example, 50 nm to 2 ⁇ m, but is preferably 50 to 300 nm when a resin film is used as the substrate, and 0.3 ⁇ m when a paper substrate is used as the substrate. It is preferably ⁇ 2 ⁇ m.
- the pressure-sensitive adhesive body in one embodiment of the present invention comprises the above-described release sheet and an adhesive layer that substantially does not contain a silicone compound formed on the release layer of the release sheet.
- a silicone compound is not contained substantially means that the quantity of a silicone compound becomes like this.
- it is 500 microgram / m ⁇ 2 > or less, More preferably, it is 100 microgram / m ⁇ 2 > or less.
- any non-silicone pressure-sensitive adhesive that does not substantially contain a silicone compound can be used without particular limitation, and for example, an acrylic pressure-sensitive adhesive can be used.
- the pressure-sensitive adhesive layer is formed by applying a pressure-sensitive adhesive on the release layer and then drying by heating.
- the pressure-sensitive adhesive body may further include a support body that is provided on the pressure-sensitive adhesive layer and supports the pressure-sensitive adhesive layer.
- a support body What was illustrated as a base material of an above described peeling sheet can be used.
- the release sheet and the pressure-sensitive adhesive body are wound, for example, in a roll shape after being manufactured and stored.
- the component derived from the acrylic polymer (B) is segregated in the vicinity of the surface (release surface) of the release layer formed by curing the release agent composition. It becomes.
- Such segregation is considered to be caused by the fact that an acrylic polymer (B) having a different molecular structure, polarity, molecular weight and the like from the polyester resin (A) is pushed up near the surface while the release layer is cured. .
- the acrylic polymer (B) can sufficiently exhibit the release performance even when the addition amount is small as in the present embodiment, and can improve the release performance of the release layer. And while maintaining the good release performance of the release layer with a small amount of the acrylic polymer (B), the polyester resin (A) with a large amount of blending improves the anti-blocking performance and further increases the adhesion to the substrate. be able to.
- the heat resistance of the release layer can be improved by forming the release layer with the polyester resin (A) and the acrylic polymer (B). Accordingly, the pressure-sensitive adhesive layer can be formed by directly applying the pressure-sensitive adhesive on the release layer and then drying by heating. Moreover, since an adhesive body and a peeling sheet are comprised with a non-silicone compound, even if these are used for an electrical component use, an electrical component etc. will not be adversely affected.
- a number average molecular weight (Mn) and a mass average molecular weight (Mw) are the values of polystyrene conversion measured on condition of the following using gel permeation chromatography (GPC).
- GPC measuring device HLC-8020 manufactured by Tosoh Corporation
- GPC column (passed in the following order): TSK guard column HXL-H, TSK gel GMHXL ( ⁇ 2), TSK gel G2000HXL (manufactured by Tosoh Corporation)
- Measuring solvent Tetrahydrofuran Measuring temperature: 40 ° C
- Example 1 In a 1 liter flask equipped with a stirrer, a nitrogen introducing tube, a thermometer and a cooling tube, 99 parts by mass of lauryl acrylate (LA), 1 part by mass of 2-hydroxyethyl acrylate (HEA), azobisisobutyronitrile (AIBN) 0.2 parts by mass, 100 parts by mass of toluene, and 100 parts by mass of ethyl acetate were added, and a polymerization reaction was carried out at 80 ° C. for 2 hours under a nitrogen stream, whereby an LA-HEA copolymer (hereinafter referred to as “polymer A”). ) Solution (solid content 30% by mass).
- LA lauryl acrylate
- HSA 2-hydroxyethyl acrylate
- AIBN azobisisobutyronitrile
- the obtained polymer A had a mass average molecular weight of 110,000.
- a polyester resin manufactured by Toyobo Co., Ltd., trade name “Byron 220”, number average molecular weight (Mn): 3000, hydroxyl value: 50 mg KOH / g
- Mn number average molecular weight
- hydroxyl value 50 mg KOH / g
- polyester resin solution in terms of solid content
- polymer A solution in terms of solid content
- a melamine resin as a crosslinking agent trade name “TF200”, manufactured by Kotobuki Co., Ltd., 80% by mass of solid content
- MEK methyl ethyl ketone
- a solution containing 50% by mass of p-toluenesulfonic acid
- a coating liquid 1 having a solid content concentration of 2.5% by mass.
- the obtained coating solution 1 was applied onto a polyethylene terephthalate (PET) film having a thickness of 50 ⁇ m as a base material using a Meyer bar so that the thickness after drying would be 150 nm, and then 1 ° C. at 150 ° C.
- a release layer was formed on the substrate by drying and curing for a minute to obtain a release sheet comprising the substrate and the release layer.
- PET polyethylene terephthalate
- Example 2 Coating obtained by changing the composition of coating solution 1 to 81 parts by mass of polyester resin solution (converted to solid content), 19 parts by mass of polymer A solution (converted to solid content), and 7 parts by mass of melamine resin (converted to solid content) A release sheet was obtained in the same manner as in Example 1 except that the release layer was formed using the working solution 2 (prepared to a solid content concentration of 2.5% by mass).
- Example 3 Coating obtained by changing the composition of coating solution 1 to 90 parts by mass of polyester resin solution (converted to solid content), 10 parts by mass of polymer A solution (converted to solid content), and 7 parts by mass of melamine resin (converted to solid content) A release sheet was obtained in the same manner as in Example 1 except that the release layer was formed using the working solution 3 (prepared to a solid content concentration of 2.5% by mass).
- Example 4 To a 1 liter flask equipped with a stirrer, a nitrogen introduction tube, a thermometer and a cooling tube, 97 parts by mass of LA, 3 parts by mass of HEA, 0.2 parts by mass of AIBN, 100 parts by mass of toluene, and 100 parts by mass of ethyl acetate were added. Then, a polymerization reaction was carried out at 80 ° C. for 2 hours to obtain a LA-HEA copolymer (hereinafter referred to as “polymer B”) solution (solid content: 30% by mass). The obtained polymer B had a mass average molecular weight of 110,000. And it peeled like Example 1 except the point which formed the peeling layer using the coating liquid 4 which changed the solution of the polymer A into the solution of the polymer B in the mixing
- polymer B LA-HEA copolymer
- Example 5 To a 1 liter flask equipped with a stirrer, a nitrogen introduction tube, a thermometer and a cooling tube, 90 parts by mass of LA, 10 parts by mass of HEA, 0.2 parts by mass of AIBN, 100 parts by mass of toluene, and 100 parts by mass of ethyl acetate were added. Then, a polymerization reaction was carried out at 80 ° C. for 2 hours to obtain a LA-HEA copolymer (hereinafter referred to as “polymer C”) solution (solid content 30% by mass). The obtained polymer C had a mass average molecular weight of 111,000. Then, a release sheet was formed in the same manner as in Example 1 except that a release layer was formed using the coating liquid 5 obtained by changing the polymer A solution to the polymer C solution in the coating liquid formulation. Got.
- polymer C LA-HEA copolymer
- Example 6 In a 1 liter flask equipped with a stirrer, a nitrogen introduction tube, a thermometer and a cooling tube, 99 parts by mass of myristyl acrylate (MyA), 1 part by mass of HEA, 0.2 part by mass of AIBN, 100 parts by mass of toluene, and 100 parts by mass of ethyl acetate were added. The solution was added and subjected to a polymerization reaction at 80 ° C. for 2 hours under a nitrogen stream to obtain a MyA-HEA copolymer (hereinafter referred to as “polymer D”) solution (solid content: 30% by mass). The obtained polymer D had a mass average molecular weight of 140000. And it peeled like Example 1 except the point which formed the peeling layer using the coating liquid 6 which changed the solution of the polymer A into the solution of the polymer D in the mixing
- polymer D MyA-HEA copolymer
- Example 7 To a 1 liter flask equipped with a stirrer, nitrogen introducing tube, thermometer and cooling tube, 99 parts by mass of LA, 1 part by mass of HEA, 0.073 parts by mass of AIBN, 100 parts by mass of toluene, and 100 parts by mass of ethyl acetate were added. Then, a polymerization reaction was carried out at 70 ° C. for 5 hours to obtain a LA-HEA copolymer (hereinafter referred to as “polymer E”) solution (solid content: 30% by mass). The obtained polymer E had a mass average molecular weight of 400,000. And it peeled like Example 1 except the point which formed the peeling layer using the coating liquid 7 which changed the solution of the polymer A into the solution of the polymer E in the mixing
- polymer E LA-HEA copolymer
- Example 8 To a 1 liter flask equipped with a stirrer, a nitrogen introduction tube, a thermometer and a cooling tube, 99 parts by mass of LA, 1 part by mass of HEA, 0.2 part by mass of AIBN, and 100 parts by mass of ethyl acetate were added, and the mixture was heated at 80 ° C. under a nitrogen stream. By performing the polymerization reaction for 18 hours, a solution (solid content 30% by mass) of an LA-HEA copolymer (hereinafter referred to as “polymer F”) was obtained. The obtained polymer F had a mass average molecular weight of 870000. And it peeled like Example 1 except the point which formed the peeling layer using the coating liquid 8 which changed the solution of the polymer A into the solution of the polymer F in the mixing
- polymer F an LA-HEA copolymer
- Example 9 In a 1 liter flask equipped with a stirrer, a nitrogen introducing tube, a thermometer and a cooling tube, 99 parts by mass of LA, 1 part by mass of 4-hydroxybutyl acrylate (4HBA), 0.073 parts by mass of AIBN, 100 parts by mass of toluene, 100 parts of ethyl acetate A mass part was added, and a polymerization reaction was carried out at 80 ° C. for 2 hours under a nitrogen stream to obtain a LA-4HBA copolymer (hereinafter referred to as “polymer G”) solution (solid content 30% by mass).
- polymer G had a mass average molecular weight of 130,000.
- Example 10 To a 1 liter flask equipped with a stirrer, a nitrogen introduction tube, a thermometer and a cooling tube, 99 parts by mass of MyA, 1 part by mass of 4HBA, 0.063 parts by mass of AIBN, and 200 parts by mass of ethyl acetate were added. By carrying out the polymerization reaction for 2 hours, a solution (solid content 30% by mass) of MyA-4HBA copolymer (hereinafter referred to as “polymer H”) was obtained. The obtained polymer H had a mass average molecular weight of 210,000. And it peeled like Example 1 except the point which formed the peeling layer using the coating liquid 10 which changed the solution of the polymer A into the solution of the polymer H in the mixing
- Example 11 To a 1 liter flask equipped with a stirrer, a nitrogen introduction tube, a thermometer and a cooling tube, 99 parts by mass of MyA, 1 part by mass of HEA, 0.09 parts by mass of AIBN, 100 parts by mass of toluene, and 100 parts by mass of ethyl acetate were added. Then, a polymerization reaction was carried out at 80 ° C. for 2 hours to obtain a MyA-HEA copolymer (hereinafter referred to as “polymer I”) solution (solid content 30% by mass). The obtained polymer I had a mass average molecular weight of 270000. And it peeled like Example 1 except the point which formed the peeling layer using the coating liquid 11 which changed the solution of the polymer A into the solution of the polymer I in the mixing
- polymer I MyA-HEA copolymer
- Example 12 To a 1 liter flask equipped with a stirrer, a nitrogen introduction tube, a thermometer and a cooling tube, 99 parts by mass of MyA, 1 part by mass of HEA, 0.063 parts by mass of AIBN, and 200 parts by mass of ethyl acetate were added, and at 80 ° C. under a nitrogen stream. By carrying out the polymerization reaction for 2 hours, a solution (solid content 30% by mass) of MyA-HEA copolymer (hereinafter referred to as “polymer J”) was obtained. The obtained polymer J had a mass average molecular weight of 480000. And it peeled like Example 1 except the point which formed the peeling layer using the coating liquid 12 which changed the solution of the polymer A into the solution of the polymer J in the mixing
- Example 13 Coating obtained by changing the composition of coating solution 1 to 65 parts by mass of polyester resin solution (converted to solid content), 35 parts by mass of polymer A solution (converted to solid content), and 16 parts by mass of melamine resin (converted to solid content) A release sheet was obtained in the same manner as in Example 1 except that the release layer was formed using the working solution 13 (prepared to a solid content concentration of 2.5% by mass).
- Example 14 Coating obtained by changing the composition of coating solution 1 to 65 parts by mass of polyester resin solution (in terms of solid content), 35 parts by mass of polymer D solution (in terms of solid content), and 16 parts by mass of melamine resin (in terms of solid content) A release sheet was obtained in the same manner as in Example 1 except that the release layer was formed using the working solution 14 (prepared to a solid content concentration of 2.5% by mass).
- A The shearing force required for peeling is less than 1 N / m 2 and is a level at which peeling can be performed smoothly.
- B The shearing force required for peeling is 1 N / m 2 or more and less than 5 N / m 2 , and blocking is slightly seen, but at a level that is not problematic in practice.
- C The shearing force required for peeling is 5 N / m 2 or more, which is a level at which blocking is noticeable.
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Abstract
Description
(一般式(1)において、R1は水素原子又はメチル基を示し、R2は炭素数12~16のアルキル基を示す。)
本発明の一実施形態における剥離剤組成物は、ポリエステル樹脂(A)と、アクリル系ポリマー(B)と、架橋剤(C)とを含有するものである。
(一般式(2)において、R1は水素原子又はメチル基を示し、R3は炭素数1~11のアルキル基を示し、該アルキル基は、フッ素原子、酸素原子、または窒素原子を含んでいても良い。)
(測定条件)
GPC測定装置:東ソー(株)製HLC-8020
GPCカラム(以下の順に通過):TSK guard column HXL-H、TSK gel GMHXL(×2)、TSK gel G2000HXL(東ソー(株)製)
測定溶媒:テトラヒドロフラン 測定温度:40℃
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、ラウリルアクリレート(LA)99質量部、2-ヒドロキシエチルアクリレート(HEA)1質量部、アゾビスイソブチロニトリル(AIBN)0.2質量部、トルエン100質量部、酢酸エチル100質量部を添加し、窒素気流下、80℃で2時間重合反応を行うことにより、LA-HEA共重合体(以下、「ポリマーA」という)の溶液(固形分30質量%)を得た。得られたポリマーAの質量平均分子量は110000であった。また、ポリエステル樹脂(東洋紡績社製、商品名「バイロン220」、数平均分子量(Mn):3000、水酸基価:50mgKOH/g)をトルエンに溶解し、35質量%濃度のポリエステル樹脂溶液を作製した。
塗工液1の配合を、ポリエステル樹脂溶液81質量部(固形分換算)、ポリマーAの溶液19質量部(固形分換算)、メラミン樹脂7質量部(固形分換算)に変更して得た塗工液2(固形分濃度2.5質量%に調製)を用いて剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
塗工液1の配合を、ポリエステル樹脂溶液90質量部(固形分換算)、ポリマーAの溶液10質量部(固形分換算)、メラミン樹脂7質量部(固形分換算)に変更して得た塗工液3(固形分濃度2.5質量%に調製)を用いて剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、LA97質量部、HEA3質量部、AIBN0.2質量部、トルエン100質量部、酢酸エチル100質量部を添加し、窒素気流下、80℃で2時間重合反応を行うことにより、LA-HEA共重合体(以下、「ポリマーB」という)の溶液(固形分30質量%)を得た。得られたポリマーBの質量平均分子量は110000であった。そして、塗工液1の配合においてポリマーAの溶液をポリマーBの溶液に変更して得た塗工液4を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、LA90質量部、HEA10質量部、AIBN0.2質量部、トルエン100質量部、酢酸エチル100質量部を添加し、窒素気流下、80℃で2時間重合反応を行うことにより、LA-HEA共重合体(以下、「ポリマーC」という)の溶液(固形分30質量%)を得た。得られたポリマーCの質量平均分子量は111000であった。そして、塗工液の配合においてポリマーAの溶液をポリマーCの溶液に変更して得た塗工液5を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、ミリスチルアクリレート(MyA)99質量部、HEA1質量部、AIBN0.2質量部、トルエン100質量部、酢酸エチル100質量部を添加し、窒素気流下、80℃で2時間重合反応を行うことにより、MyA-HEA共重合体(以下、「ポリマーD」という)の溶液(固形分30質量%)を得た。得られたポリマーDの質量平均分子量は140000であった。そして、塗工液1の配合においてポリマーAの溶液をポリマーDの溶液に変更して得た塗工液6を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、LA99質量部、HEA1質量部、AIBN0.073質量部、トルエン100質量部、酢酸エチル100質量部を添加し、窒素気流下、70℃で5時間重合反応を行うことにより、LA-HEA共重合体(以下、「ポリマーE」という)の溶液(固形分30質量%)を得た。得られたポリマーEの質量平均分子量は400000であった。そして、塗工液1の配合においてポリマーAの溶液をポリマーEの溶液に変更して得た塗工液7を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、LA99質量部、HEA1質量部、AIBN0.2質量部、酢酸エチル100質量部を添加し、窒素気流下、80℃で18時間重合反応を行うことにより、LA-HEA共重合体(以下、「ポリマーF」という)の溶液(固形分30質量%)を得た。得られたポリマーFの質量平均分子量は870000であった。そして、塗工液1の配合においてポリマーAの溶液をポリマーFの溶液に変更して得た塗工液8を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、LA99質量部、4-ヒドロキシブチルアクリレート(4HBA)1質量部、AIBN0.073質量部、トルエン100質量部、酢酸エチル100質量部を添加し、窒素気流下、80℃で2時間重合反応を行うことにより、LA-4HBA共重合体(以下、「ポリマーG」という)の溶液(固形分30質量%)を得た。得られたポリマーGの質量平均分子量は130000であった。そして、塗工液1の配合においてポリマーAの溶液をポリマーGの溶液に変更して得た塗工液9を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、MyA99質量部、4HBA1質量部、AIBN0.063質量部、酢酸エチル200質量部を添加し、窒素気流下、80℃で2時間重合反応を行うことにより、MyA-4HBA共重合体(以下、「ポリマーH」という)の溶液(固形分30質量%)を得た。得られたポリマーHの質量平均分子量は210000であった。そして、塗工液1の配合においてポリマーAの溶液をポリマーHの溶液に変更して得た塗工液10を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、MyA99質量部、HEA1質量部、AIBN0.09質量部、トルエン100質量部、酢酸エチル100質量部を添加し、窒素気流下、80℃で2時間重合反応を行うことにより、MyA-HEA共重合体(以下、「ポリマーI」という)の溶液(固形分30質量%)を得た。得られたポリマーIの質量平均分子量は270000であった。そして、塗工液1の配合においてポリマーAの溶液をポリマーIの溶液に変更して得た塗工液11を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、MyA99質量部、HEA1質量部、AIBN0.063質量部、酢酸エチル200質量部を添加し、窒素気流下、80℃で2時間重合反応を行うことにより、MyA-HEA共重合体(以下、「ポリマーJ」という)の溶液(固形分30質量%)を得た。得られたポリマーJの質量平均分子量は480000であった。そして、塗工液1の配合においてポリマーAの溶液をポリマーJの溶液に変更して得た塗工液12を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
塗工液1の配合を、ポリエステル樹脂溶液65質量部(固形分換算)、ポリマーAの溶液35質量部(固形分換算)、メラミン樹脂16質量部(固形分換算)に変更して得た塗工液13(固形分濃度2.5質量%に調製)を用いて剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
塗工液1の配合を、ポリエステル樹脂溶液65質量部(固形分換算)、ポリマーDの溶液35質量部(固形分換算)、メラミン樹脂16質量部(固形分換算)に変更して得た塗工液14(固形分濃度2.5質量%に調製)を用いて剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
塗工液1の配合を、ポリエステル樹脂溶液46質量部(固形分換算)、ポリマーAの溶液54質量部(固形分換算)、メラミン樹脂7質量部(固形分換算)に変更して得た塗工液9(固形分濃度2.5質量%に調製)を用いて剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
塗工液1の配合を、ポリエステル樹脂溶液99質量部(固形分換算)、ポリマーAの溶液1質量部(固形分換算)、メラミン樹脂7質量部(固形分換算)に変更して得た塗工液10(固形分濃度2.5質量%に調製)を用いて剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
攪拌機、窒素導入管、温度計及び冷却管を備えた1リットルのフラスコに、ステアリルアクリレート(StA)99質量部、HEA1質量部、AIBN0.2質量部、トルエン100質量部を添加し、窒素気流下、80℃で2時間重合反応を行うことにより、StA-HEA共重合体(以下、「ポリマーG」という)の溶液(固形分50質量%)を得た。得られたポリマーGの質量平均分子量は100000であった。そして、塗工液1の配合においてポリマーAの溶液をポリマーGの溶液に変更して得た塗工液11(固形分濃度2.5質量%に調製)を用いて、剥離層を形成した点を除いて、実施例1と同様にして剥離シートを得た。
各実施例、比較例で得た剥離シートの剥離層の上に、アクリル系粘着剤(東洋インキ製造社製、商品名「オリバインBPS-5127」をアプリケータにより塗工した後、100℃で120秒間加熱して乾燥させ、厚さ25μmの粘着層を形成した。次いで、その粘着層に、支持体としての平均厚さ50μmのポリエチレンテレフタレートフィルムを貼り合せて粘着体を得た。
[剥離力測定]
各実施例及び比較例の剥離シートを使用した各粘着体において、剥離シートの剥離力を測定した。剥離力の測定は、JIS-Z0237に準拠し、粘着体を幅20mm、長さ200mmに裁断し、引張試験機を用いて、支持体及び粘着体から成る粘着シートを固定した状態で、剥離シートを300mm/分の速度で180°方向に引っ張ることにより、剥離力を測定した。
各実施例、比較例で得られた剥離シートについて、幅20mm、長さ18cmに裁断した2枚の剥離シートを、長さ方向に3cmずらし、かつ剥離層表面と基材表面とが接触するように重ねた。次に、この重ね合わせた2枚の剥離シートに、100g/cm2の荷重をかけた状態で60℃の環境下で24時間放置した。その後、2枚の剥離シートのうちの一方の剥離シートを固定し、引張試験機により他方の剥離シートを60mm/分の速度で反対方向に引っ張り、引き剥がしに要するせん断力を測定し、以下の3段階の基準に従い評価した。
A:引き剥がしに要するせん断力が、1N/m2よりも小さく、スムーズに剥離できるレベルである。
B:引き剥がしに要するせん断力が、1N/m2以上5N/m2未満であり、ブロッキングがやや見られるが実用上問題ないレベルである。
C:引き剥がしに要するせん断力が、5N/m2以上であり、ブロッキングが顕著に見られるレベルである。
Claims (11)
- 前記アクリル系ポリマー(B)が、さらに水酸基、アミノ基、及びカルボキシル基から成る群から選択される官能基を有する構成単位を含むことを特徴とする請求項1に記載の剥離剤組成物。
- 前記ポリエステル樹脂(A)の数平均分子量が、500~10000であることを特徴とする請求項1に記載の剥離剤組成物。
- 前記アクリル系ポリマー(B)の質量平均分子量が、70000~2000000であることを特徴とする請求項1に記載の剥離剤組成物。
- 前記ポリエステル樹脂(A)が、官能基として水酸基を有することを特徴とする請求項1に記載の剥離剤組成物。
- 前記架橋剤(C)が、多官能アミノ化合物、多官能イソシアネート化合物、多官能エポキシ化合物、又は多官能金属化合物であることを特徴とする請求項1に記載の剥離剤組成物。
- 前記架橋剤(C)の配合量が、前記ポリエステル樹脂(A)と前記アクリル系ポリマー(B)の合計量100質量部に対して、1~30質量部であることを特徴とする請求項1に記載の剥離剤組成物。
- シリコーン化合物を実質的に含有しないことを特徴とする請求項1ないし7のいずれか1項に記載の剥離剤組成物。
- 基材と、その基材上に設けられ、請求項1ないし8のいずれか1項に記載の剥離剤組成物の硬化物から成る剥離層とを備えることを特徴とする剥離シート。
- 前記剥離層の厚さが、50nm~2μmであることを特徴とする請求項9に記載の剥離シート。
- 請求項9又は10に記載の剥離シートと、その剥離シートの剥離層上に設けられたシリコーン化合物を実質的に含有しない粘着層とを有することを特徴とする粘着体。
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201180038527.8A CN103052697B (zh) | 2010-08-11 | 2011-08-03 | 剥离剂组合物、剥离片以及粘合体 |
| SG2013004007A SG187127A1 (en) | 2010-08-11 | 2011-08-03 | Peeling agent composition, peeling sheet, and adhesive body |
| US13/812,866 US20130130024A1 (en) | 2010-08-11 | 2011-08-03 | Release agent composition, release sheet, and pressure-sensitive adhesive body |
| JP2012528649A JP5842309B2 (ja) | 2010-08-11 | 2011-08-03 | 剥離剤組成物、剥離シート及び粘着体 |
| KR1020137003219A KR101848602B1 (ko) | 2010-08-11 | 2011-08-03 | 박리제 조성물,박리 시트 및 점착체 |
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| JP2010180428 | 2010-08-11 | ||
| JP2010-180428 | 2010-08-11 |
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| WO2012020673A1 true WO2012020673A1 (ja) | 2012-02-16 |
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| US (1) | US20130130024A1 (ja) |
| JP (1) | JP5842309B2 (ja) |
| KR (1) | KR101848602B1 (ja) |
| CN (1) | CN103052697B (ja) |
| SG (1) | SG187127A1 (ja) |
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| WO (1) | WO2012020673A1 (ja) |
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| JP2012072372A (ja) * | 2010-08-30 | 2012-04-12 | Lintec Corp | 粘着体及び剥離シート |
| KR20140118796A (ko) * | 2013-03-28 | 2014-10-08 | 린텍 가부시키가이샤 | 점착 시트 |
| JP2015063028A (ja) * | 2013-09-24 | 2015-04-09 | リンテック株式会社 | 剥離シートおよび粘着シート |
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| JP2016079238A (ja) * | 2014-10-14 | 2016-05-16 | リンテック株式会社 | 剥離剤組成物、剥離シートおよび両面粘着シート |
| WO2016098779A1 (ja) * | 2014-12-18 | 2016-06-23 | 東洋紡株式会社 | 離型層、離型層を備える成形体および離型剤 |
| WO2016136759A1 (ja) * | 2015-02-24 | 2016-09-01 | リンテック株式会社 | 剥離剤組成物、剥離シート、片面粘着シートおよび両面粘着シート |
| JP2016190327A (ja) * | 2015-03-30 | 2016-11-10 | リンテック株式会社 | 剥離シートおよび粘着シート |
| JP2017078161A (ja) * | 2015-10-20 | 2017-04-27 | 荒川化学工業株式会社 | 熱硬化性離型コーティング剤、離型フィルム及び離型ポリエチレンテレフタレートフィルム |
| WO2017078026A1 (ja) * | 2015-11-06 | 2017-05-11 | リンテック株式会社 | 剥離剤組成物、剥離シート及び粘着体 |
| JP2017165818A (ja) * | 2016-03-14 | 2017-09-21 | リンテック株式会社 | 剥離剤組成物、剥離シート及び粘着体 |
| JP2017170658A (ja) * | 2016-03-19 | 2017-09-28 | 三菱ケミカル株式会社 | 積層フィルム |
| WO2019004209A1 (ja) * | 2017-06-27 | 2019-01-03 | 王子ホールディングス株式会社 | 剥離性フィルム |
| JP2019209528A (ja) * | 2018-05-31 | 2019-12-12 | 王子ホールディングス株式会社 | 剥離性フィルム |
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| JPWO2021192896A1 (ja) * | 2020-03-27 | 2021-09-30 | ||
| JP2022010558A (ja) * | 2020-06-29 | 2022-01-17 | 大塚化学株式会社 | 剥離剤組成物および剥離フィルム |
| JPWO2022118755A1 (ja) * | 2020-12-04 | 2022-06-09 |
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| JP7172468B2 (ja) * | 2017-11-17 | 2022-11-16 | 荒川化学工業株式会社 | 熱硬化性剥離コーティング剤、及び剥離フィルム |
| CN110938339B (zh) * | 2018-09-25 | 2022-06-14 | 日本化工涂料株式会社 | 热固性离型涂层剂和层压膜 |
| JP7522096B2 (ja) * | 2019-03-26 | 2024-07-24 | リンテック株式会社 | 剥離シート |
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| KR102178351B1 (ko) | 2013-03-28 | 2020-11-12 | 린텍 가부시키가이샤 | 점착 시트 |
| KR20140118796A (ko) * | 2013-03-28 | 2014-10-08 | 린텍 가부시키가이샤 | 점착 시트 |
| JP2015063028A (ja) * | 2013-09-24 | 2015-04-09 | リンテック株式会社 | 剥離シートおよび粘着シート |
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| JPWO2021192896A1 (ja) * | 2020-03-27 | 2021-09-30 | ||
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| CN116490357A (zh) * | 2020-12-04 | 2023-07-25 | 东洋纺株式会社 | 脱模薄膜 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20130130024A1 (en) | 2013-05-23 |
| TWI526495B (zh) | 2016-03-21 |
| JP5842309B2 (ja) | 2016-01-13 |
| CN103052697A (zh) | 2013-04-17 |
| KR20130100976A (ko) | 2013-09-12 |
| CN103052697B (zh) | 2015-01-07 |
| TW201217456A (en) | 2012-05-01 |
| SG187127A1 (en) | 2013-02-28 |
| JPWO2012020673A1 (ja) | 2013-10-28 |
| KR101848602B1 (ko) | 2018-04-13 |
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