WO2003072674A1 - Adhesif sensible a la pression durcissable au moyen d'un rayon d'energie active et feuille d'adhesif sensible a la pression - Google Patents
Adhesif sensible a la pression durcissable au moyen d'un rayon d'energie active et feuille d'adhesif sensible a la pression Download PDFInfo
- Publication number
- WO2003072674A1 WO2003072674A1 PCT/JP2003/002216 JP0302216W WO03072674A1 WO 2003072674 A1 WO2003072674 A1 WO 2003072674A1 JP 0302216 W JP0302216 W JP 0302216W WO 03072674 A1 WO03072674 A1 WO 03072674A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compound
- sensitive adhesive
- pressure
- maleimide
- group
- Prior art date
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- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 66
- 150000001875 compounds Chemical class 0.000 claims abstract description 100
- 230000001070 adhesive effect Effects 0.000 claims abstract description 58
- 239000000853 adhesive Substances 0.000 claims abstract description 56
- 125000005439 maleimidyl group Chemical group C1(C=CC(N1*)=O)=O 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims abstract description 32
- 238000000576 coating method Methods 0.000 claims abstract description 32
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 7
- 125000003710 aryl alkyl group Chemical group 0.000 claims abstract description 4
- 125000003118 aryl group Chemical group 0.000 claims abstract description 4
- 125000005843 halogen group Chemical group 0.000 claims abstract description 3
- 229920000728 polyester Polymers 0.000 claims description 19
- 239000000047 product Substances 0.000 claims description 14
- 239000007795 chemical reaction product Substances 0.000 claims description 12
- 238000005886 esterification reaction Methods 0.000 claims description 12
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 10
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 6
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 5
- 238000007259 addition reaction Methods 0.000 claims description 3
- 230000032050 esterification Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 239000003999 initiator Substances 0.000 abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 22
- 238000004132 cross linking Methods 0.000 abstract description 3
- 238000002845 discoloration Methods 0.000 abstract description 2
- -1 maleimide compound Chemical class 0.000 description 97
- 229920005862 polyol Polymers 0.000 description 24
- 150000003077 polyols Chemical class 0.000 description 22
- 239000002253 acid Substances 0.000 description 20
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 18
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 15
- 239000003054 catalyst Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 15
- 239000000203 mixture Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 14
- 229920000642 polymer Polymers 0.000 description 14
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 description 10
- 229910052698 phosphorus Inorganic materials 0.000 description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- 239000011574 phosphorus Substances 0.000 description 9
- 229920005906 polyester polyol Polymers 0.000 description 9
- 239000005058 Isophorone diisocyanate Substances 0.000 description 8
- 239000003963 antioxidant agent Substances 0.000 description 8
- 235000006708 antioxidants Nutrition 0.000 description 8
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 description 8
- 230000000873 masking effect Effects 0.000 description 8
- 239000000178 monomer Substances 0.000 description 8
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- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 7
- 239000012975 dibutyltin dilaurate Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
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- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 239000001361 adipic acid Substances 0.000 description 6
- 235000011037 adipic acid Nutrition 0.000 description 6
- 150000001412 amines Chemical class 0.000 description 6
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- 238000002156 mixing Methods 0.000 description 6
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- 229920001228 polyisocyanate Polymers 0.000 description 6
- HVLLSGMXQDNUAL-UHFFFAOYSA-N triphenyl phosphite Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)OC1=CC=CC=C1 HVLLSGMXQDNUAL-UHFFFAOYSA-N 0.000 description 6
- 125000002947 alkylene group Chemical group 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
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- 239000002184 metal Substances 0.000 description 5
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 5
- 229920000058 polyacrylate Polymers 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
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- 150000003923 2,5-pyrrolediones Chemical class 0.000 description 4
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- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 4
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 150000004703 alkoxides Chemical class 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 4
- 125000004432 carbon atom Chemical group C* 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 4
- 239000012948 isocyanate Substances 0.000 description 4
- 239000003504 photosensitizing agent Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 3
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 3
- DRSHXJFUUPIBHX-UHFFFAOYSA-N COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 Chemical compound COc1ccc(cc1)N1N=CC2C=NC(Nc3cc(OC)c(OC)c(OCCCN4CCN(C)CC4)c3)=NC12 DRSHXJFUUPIBHX-UHFFFAOYSA-N 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 3
- 239000004721 Polyphenylene oxide Substances 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
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- 239000003431 cross linking reagent Substances 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 150000002009 diols Chemical class 0.000 description 3
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- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 3
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- AYEKOFBPNLCAJY-UHFFFAOYSA-O thiamine pyrophosphate Chemical compound CC1=C(CCOP(O)(=O)OP(O)(O)=O)SC=[N+]1CC1=CN=C(C)N=C1N AYEKOFBPNLCAJY-UHFFFAOYSA-O 0.000 description 3
- 229910052718 tin Inorganic materials 0.000 description 3
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 3
- 238000004383 yellowing Methods 0.000 description 3
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- SDQROPCSKIYYAV-UHFFFAOYSA-N 2-methyloctane-1,8-diol Chemical compound OCC(C)CCCCCCO SDQROPCSKIYYAV-UHFFFAOYSA-N 0.000 description 2
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- 150000007964 xanthones Chemical class 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/08—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/065—Polyamides; Polyesteramides; Polyimides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
- C08F290/141—Polyesters; Polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
- C08F290/145—Polyamides; Polyesteramides; Polyimides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/08—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated side groups
- C08F290/14—Polymers provided for in subclass C08G
- C08F290/147—Polyurethanes; Polyureas
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
- C08G18/4236—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups
- C08G18/4238—Polycondensates having carboxylic or carbonic ester groups in the main chain containing only aliphatic groups derived from dicarboxylic acids and dialcohols
-
- 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
- C09J167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
- C09J167/07—Unsaturated polyesters having carbon-to-carbon unsaturation having terminal carbon-to-carbon unsaturated bonds
-
- 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
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
-
- 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
- C09J7/38—Pressure-sensitive adhesives [PSA]
- C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2170/00—Compositions for adhesives
- C08G2170/40—Compositions for pressure-sensitive adhesives
Definitions
- the present invention relates to an active energy linear curing pressure-sensitive adhesive comprising a compound having two or more maleimide groups having a specific structure, and a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer formed from the pressure-sensitive adhesive. It can be awarded in the field.
- the pressure-sensitive adhesive is used for various applications such as pressure-sensitive adhesive tapes, pressure-sensitive adhesive labels, and double-sided pressure-sensitive adhesive tapes after being subjected to pressure-sensitive adhesive processing. In recent years, higher performance has been required. In particular, for applications such as bonding of interior and exterior parts of automobiles, electrical equipment, and homes, and bonding of electronic parts, excellent water resistance and high adhesiveness, that is, low pressure bonding at room temperature is possible. It is required to be capable of being peeled off even when left at high temperatures.
- Adhesives used in first-aid bonds, magnetic bonds, surgical tapes, accelerated wound dressings (dressings), sports tapes, and tape preparations for transdermal therapeutic systems must be applied directly to the skin. In addition, high security is required.
- solvent adhesives obtained by dissolving acrylic polymers and rubber resins such as SIS and SEBS in organic solvents are used as widely used adhesives, and have excellent water resistance and adhesive performance. Therefore, various studies have been made to satisfy the above-mentioned performance.
- solvent-based pressure-sensitive adhesives are not recommended because they may affect the environment due to the organic solvent escaping when processing into pressure-sensitive adhesive products and the safety of residual solvents in the pressure-sensitive adhesive film.
- An unused adhesive has recently been required.
- Active energy ray-curable adhesives that cure are being studied. Active energy ray-curable compositions, including active energy ray-curable pressure-sensitive adhesives, are usually used as photopolymerization initiators or photosensitizers (hereinafter collectively referred to as Initiator, etc.).
- the photopolymerization initiator As the photopolymerization initiator, a low molecular weight compound is usually used in order to start the polymerization reaction efficiently. However, when the composition is irradiated with active energy, the temperature rises due to the heat of polymerization.However, the low molecular weight photopolymerization initiator, etc. has a high vapor pressure, so that a noticeable odor is generated during curing, which causes a problem in the working environment. This has the problem of generating or contaminating the obtained product. In addition, in the cured coating film, decomposition products such as unreacted photopolymerization initiator remain, so that when light or heat acts on the cured coating film, the cured coating film turns yellow, There was a problem of generating a bad smell.
- the composition containing a compound having a maleimide group disclosed in JP-A-11-111244 and JP-A-11-124440 is used as an adhesive, it is stored and stored at a high temperature. In some cases, the cured coating film had poor water resistance, that is, when it was immersed in warm water for a long time, the adhesive strength was reduced and the cured coating film peeled off.
- compositions containing a compound having a maleimide group disclosed in JP-A-2001-19905 and JP-A-2001-225567 are all adhesives.
- the cured coating film had no tackiness or poor tackiness, and was difficult to use as a pressure-sensitive adhesive.
- the compound having a maleimide group described in Japanese Patent Application Laid-Open No. 2001-220567 has crystallinity, a melting point of 40 ° C. or higher, and is not liquid at room temperature. It had poor properties and was difficult to use as an adhesive.
- the present inventors have found that a cured coating which is liquid at room temperature, has a practical crosslinking property or curability even in the absence of a photopolymerization initiator even when irradiated with visible light or ultraviolet light,
- the film was not colored, was excellent in various adhesive properties, and was also intensively studied to find an active energy ray-curable pressure-sensitive adhesive that was excellent in water resistance and heat resistance.
- the present inventors have conducted various studies to solve the above problems, and as a result, have found that an adhesive containing a compound having two or more maleimide groups having a specific structure can solve the above problems. Was completed.
- the pressure-sensitive adhesive of the present invention essentially requires a compound having two or more maleimide groups (hereinafter simply referred to as maleimide groups) represented by the following formula (1) (hereinafter simply referred to as a maleimide compound).
- maleimide groups two or more maleimide groups represented by the following formula (1) (hereinafter simply referred to as a maleimide compound).
- R 1 represents an alkyl group, an aryl group, an arylalkyl group, or an octogen atom.
- an alkyl group having 4 or less carbon atoms is preferable.
- the 7-phenyl include a phenyl group and the like, and examples of the arylalkyl group include a benzyl group.
- the halogen atom include a fluorine atom, a chlorine atom, a bromine atom and an iodine atom.
- an alkyl group is preferable among them because of excellent reactivity of the pressure-sensitive adhesive and easy availability of raw materials, and a methyl group is more preferable because of excellent reactivity.
- the maleimide group is dimerized by irradiation with active energy rays, and crosslinks the molecules of the maleimide compound.
- the maleimide group is crosslinked or cured by ultraviolet light or visible light (hereinafter collectively referred to as “curing”), it is possible to use ultraviolet light or visible light with no compounding of a photopolymerization initiator or a small amount. Irradiation can cause a dimerization reaction.
- the maleimide compound in the present invention is a liquid at room temperature. This makes handling such as coating work easier. On the other hand, those that are solid at room temperature are difficult to handle, and the cured coating film has a high modulus of elasticity and poor adhesion performance.
- the normal temperature means 25 ° C.
- the molecular weight of the maleimide compound is preferably from 20,000 to 20,000 in terms of number average molecular weight, more preferably from 3,000 to! And more preferably from 300 to 800. If the number average molecular weight of the maleimide compound is less than 2,000, the adhesive strength and tack of the cured coating may decrease, while if it exceeds 20,000, the viscosity of the adhesive becomes too high, Coatability may decrease.
- the number average molecular weight is a value obtained by using tetrahydrofuran as a solvent and converting the molecular weight measured by gel permeation chromatography (hereinafter abbreviated as GPC) based on the molecular weight of polystyrene. .
- maleimide compound used in the present invention various compounds can be used as long as they have the maleimide group.
- maleimide compound those produced by various methods can be used, but the following three compounds are preferable in terms of easy production.
- compound (2) An addition reaction product of a prepolymer having two or more isocyanate groups at the terminal and a compound having a maleimide group and an active hydrogen group (hereinafter, referred to as compound (2)).
- Compound II is an addition reaction of a prepolymer having two or more isocyanate groups at the terminal (hereinafter simply referred to as urethane prepolymer) and a compound having a maleimide group and an active hydrogen group (hereinafter simply referred to as a maleimide active hydrogen compound). It is produced by reacting 2 moles or more of a maleimide active hydrogen compound with 1 mole of urethane prepolymer.
- urethane prepolymer various compounds having two or more isocyanate groups at the terminal of the molecule can be used.
- the urethane prepolymer is a reaction product of a polyol having two or more hydroxyl groups (hereinafter, simply referred to as "polyol”) and a polyisocyanate having two or more isocyanate groups (hereinafter, simply, “polyisocyanate”). And the like.
- polystyrene resin examples include a polyester polyol, a polyether polyol, and a polymer polyol produced from a radical polymerizable monomer.
- polyester polyols are preferred because the resulting cured coating film has a low viscosity and the resulting pressure-sensitive adhesive has excellent water resistance.
- polyol two or more kinds can be used in combination as needed.
- the polyester polyol is a random copolymer of a polycarboxylic acid and a polyhydric alcohol. Of these, aliphatic polyester polyols are preferred because of their excellent curability by the active energy ray of the pressure-sensitive adhesive.
- the polyvalent carboxylic acid various compounds can be used as long as they have two or more carboxylic acid groups in the molecule.
- succinic acid, adipic acid, pimelic acid, suberic acid, azelaic acid, sebacic acid dodecanedioic acid, icoic diacid, 2,6-naphthalenedicarboxylic acid, trimellitic acid, daltaric acid, 1,9 one Nonanedicarboxylic acid, 1,10-decanedicarboxylic acid, malonic acid, fumaric acid, 2,2-dimethylglutaric acid, 1,3-cyclopentanedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, 1,3- Cyclohexanedicarboxylic acid, itaconic acid, maleic acid, 2,5-norponandicarboxylic acid, 1,4-terephthalic acid, 1,3-terephthalic acid, dimeric acid and paraoxybenzo
- aliphatic dicarboxylic acids are preferred, and adipic acid and sepasic acid are more preferred.
- Two or more polycarboxylic acids can be used in combination as needed.
- polyhydric alcohols can be used as long as they have two or more hydroxyl groups in the molecule.
- butylethyl propanediol, 2,4-diethyl-1,5-pentanediol, 3-methyl-1,5-pentanedole and polyethylene glycol ethylene glycol, diethylene glycol, triethylene glycol, Tetraethylenedalicol, 1,3-propanediol, 2-butyl-2-ethyl-1,3-propanediol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 1,4,1-butanediol 5-Pentanediol, 1,6-I-hexanediol, 1,71-heptanediol, 1,2-octanediol, 1,8-octanediol, 1,9-nonanediol, 1,2-de
- aliphatic diols are preferable, and furthermore, butylethylpropanediol, 2,4-ethyl-1,5-pentanediol, 3-methyl-1,5-pentanediol, dimeric acid diol and 2-methyl-1 , 8-Octanediol is more preferred because the resulting pressure-sensitive adhesive has low viscosity and excellent tackiness and water resistance.
- two or more polyhydric alcohols can be used in combination.
- the maleimide compound of the present invention is preferably a compound having a polyester skeleton. This will be described in detail below.
- the method for producing the polyester polyol may be a general esterification reaction, for example, a method in which a polycarboxylic acid and a polyhydric alcohol are heated with stirring in the presence of a catalyst.
- a catalyst usually used in an esterification reaction can be used, and examples thereof include a base catalyst, an acid catalyst, and a metal alkoxide.
- the base catalyst include metal hydroxides such as sodium hydroxide and water-soluble rhodium, and amines such as triethylamine, N, N-dimethylpenzylamine and triphenylamine.
- the acid catalyst include sulfuric acid and p-toluenesulfonic acid.
- the metal alkoxide is preferably an alkoxide of titanium, tin or zirconium.
- metal alkoxides include: tetraalkyl titanates such as tetrabutyl titanate; tin alkoxides such as dibutyl tin oxide and monobutyl suloxide; and zirconium tetrabutoxide and dimethyl isopropoxide. Zirconium alkoxides.
- the amount of these catalysts used is as small as possible.
- the titanium compound has almost no toxicity shown by heavy metals and can produce a practical high-molecular-weight polyester, so that it can be suitably used for sticking applications of food-related packaging materials.
- the reaction temperature and time in the esterification reaction may be appropriately set according to the purpose.
- the reaction temperature is preferably from 80 to 220.
- aliphatic polyester polyol those commercially available can be used.
- polyether polyols examples include polyethylene glycol, polypropylene dalicol, polybutylene dalicol, and polytetramethylene dalicol.
- Ethylene oxide-modified, propylene oxide-modified, butylene oxide-modified and tetrahydrofuran-modified alkylene glycols such as risritol; copolymers of ethylene oxide and propylene oxide; copolymers of propylene glycol and tetrahydrofuran; ethylene glycol And tetrahydrofuran copolymer; polyisopren
- Examples of the polymer polyol produced from the radical polymerizable monomer include a polymer containing a monomer having an ethylenically unsaturated group and a hydroxyl group as an essential component. More specifically, hydroxyalkyl (meth) acrylates such as hydroxyethyl (meth) acrylate and hydroxypropyl (methyl) acrylate and other radically polymerizable monomers such as (meth) acrylate are polymerized. And the like.
- Examples of the method for producing the polymer polyol include a method in which a radical polymerizable monomer is produced by solution polymerization or high-temperature continuous polymerization.
- polyisocyanates can be used as long as they have two or more isocyanate groups in the molecule. Specifically, p-phenylene diisocyanate, 4,4'-diphenylmethane diisocyanate, tolylene diisocyanate, 4,4'-diphenylene diisocyanate, 1, 5-octylene diisocyanate, trimethylene diisocyanate, tetramethylene diisocyanate, hexamethylene diisocyanate, pentamethylene diisocyanate, 1,3-cyclopentene diisocyanate, 1,4-cyclohexanediisocyanate, 4,4'-methylenebis (cyclohexylisocyanate), methyl 2,4-cyclohexanediiso Cyanate, Methyl 2,6-cyclohexanediisocyanate, Diphenylmethane diisocyanate, 1,4-bis (isocyanatomethyl) cyclohexan
- alicyclic or aliphatic isocyanates are preferred because they are excellent in curability of the pressure-sensitive adhesive due to active energy and weather resistance of the cured product.
- alicyclic or aliphatic isocyanate hexamethylene diisocyanate and isophorone diisocyanate are preferred.
- Two or more polyisocyanates can be used in combination as needed.
- the amount of the polyisocyanate with respect to the polyol at the time of producing the urethane prepolymer is preferably such that the equivalent ratio of group-NCOZ group-OH is 1.8 to 3, more preferably 2 to 2. It is 5.
- urethane prepolymer is in accordance with a conventional method. For example, there is a method of heating a polyol and a polysocyanate in the presence of a catalyst.
- a catalyst used in a general urethane reaction can be used, and examples thereof include a metal compound and an amine.
- the metal compound include tin catalysts such as dibutyltin laurate and tin octylate; lead catalysts such as lead octylate; K-KAT XC_405, K-KAT XC62122 (manufactured by KING INDUSTRIES, INC.) ) And the like; aluminum catalysts such as K-KAT XC-527 (KING INDUSTRIES, INC); and titanate catalysts such as tetra-2-ethylhexyl titanate.
- the amine include triethylamine, N, N-dimethylpenzylamine, triphenylamine and triethylenediamine.
- a general radical polymerization inhibitor such as hydroquinone and triethylamine can be used, if necessary, for the purpose of preventing gelation during the reaction.
- phosphorus compounds can be added during the production of urethane prepolymers. Wear. The action of the catalyst used in the esterification and the ring-opening polyaddition can be stopped by blending the phosphorus compound. If the activity of the catalyst is not deactivated, the obtained urethane prepolymer may be stored in the presence of moisture or heated in the presence of moisture in the next reaction, or the resulting cured product of the maleimide compound and the adhesive may be used. However, when stored in the presence of moisture, a transesterification reaction may occur, which may significantly reduce the physical properties of the pressure-sensitive adhesive.
- Examples of the phosphorus compound include inorganic or organic phosphorus compounds described in the following (a) to (e).
- alkyl phosphate examples include trialkyl esters such as trimethyl phosphate, triethyl phosphate, triptyl phosphate, trinonyl phosphate, and triphenyl phosphate.
- Examples include dibutyl hydrogen phosphite and triphenyl phosphite.
- triphenyl phosphite may reduce the characteristics of the polyester skeleton in the maleimide compound, and it is necessary to pay attention to the amount of triphenyl phosphite added.
- the amount of the phosphorus compound used may be appropriately set according to the molecular weight (phosphorus atom content) of the phosphorus compound, and is generally 0.001 to 3 based on 100 parts by mass of the polyester polyol. The parts by mass are preferred, and more preferably 0.01 to 1 parts by mass. If the amount of the phosphorus compound is less than 0.001 part by mass, the effect of the addition is not recognized, and if the amount is more than 3 parts by mass, the effect does not increase.
- maleimide active hydrogen compound 2216 As the maleimide active hydrogen compound, an alcohol having a maleimide group (hereinafter, maleimide alcohol) is preferable.
- the maleimide alcohol include a maleimide alkyl alcohol of the following formula (2).
- R 1 is the same group as described above, R 2 represents an alkylene group, and is preferably a linear or branched alkylene group having 1 to 6 carbon atoms.
- a maleimide compound having a polyester skeleton which is manufactured using a urethane prepolymer made from polyester polyol, has excellent curability by active energy rays and water resistance of the cured coating film. It is preferable because it is excellent.
- a urethane prepolymer and a maleimide active hydrogen compound may be produced according to a general urethane reaction.
- Specific examples of the urea-unification reaction include the same method as described above.
- the reaction is preferably performed in the presence of an antioxidant in order to prevent discoloration of the obtained maleimide compound.
- antioxidants examples include phenol-based, phosphite-based triester-based and amine-based antioxidants, which are generally used.
- the phenolic antioxidant may be used in combination with an acid value zinc to enhance its effect.
- the mixing ratio of the antioxidant is preferably from 0.01 to 2 parts by mass per 100 parts by mass of the urethane prepolymer. If the proportion is less than 0.01 part by mass, the effect of the antioxidant may not be sufficiently exhibited, and if the proportion is more than 2 parts by mass, no further effect is expected, and cost is reduced. Disadvantaged.
- the above-mentioned phosphorus compound may be blended.
- Compound II is an esterification product of a prepolymer having two or more lipoxyl groups at the end (hereinafter simply referred to as lipoic acid prepolymer) and a maleimide active hydrogen compound.
- Examples of the sulfonic acid prepolymer include those produced using the same polycarboxylic acids and polyhydric alcohols as described above, and those having a polyester skeleton are preferable.
- the maleimide active hydrogen compound the same compounds as described above can be mentioned.
- esterification reaction between the carboxylic acid prepolymer and the maleimide active hydrogen compound may be performed in the same manner as described above.
- Compound 2 can be preferably used when a lower viscosity is required as the maleimide compound.
- Compound (3) is an esterification reaction product of a prepolymer having two or more hydroxyl groups at the terminal (hereinafter simply referred to as a polyol prepolymer) and a carboxylic acid having a maleimide group (hereinafter referred to as a maleimide carboxylic acid).
- polyol prepolymer examples include the same ones as the above-mentioned polyester polyol, and those having a polyester skeleton are preferable.
- maleimide carboxylic acid various compounds can be used, and a compound represented by the following formula (3) is preferable.
- R 1 is the same group as described above, R 3 represents an alkylene group, and is preferably a linear or branched alkylene group having 1 to 6 carbon atoms.
- esterification reaction between the polyol prepolymer and maleimide carboxylic acid may follow the same method as described above.
- Compound 3 can be preferably used when a lower viscosity compound is required as a maleimide compound.
- compound (2) is preferable because it has a higher reaction rate than compounds (2) and (3), a higher yield, and can be easily produced.
- compounds I and 3 are preferred.
- the viscosity and fluidity of the maleimide compound and the adhesive strength, holding power and tack of the cured coating film can be adjusted.
- maleimide compound used in the present invention various compounds can be used as long as they have the maleimide group, but a compound having a polyester skeleton is preferable because of its excellent adhesive strength.
- maleimide compound compounds other than the compounds listed above can be used.
- a compound having an ethylenically unsaturated group in its skeleton for the purpose of further improving the curability by irradiation with active energy rays may be mentioned.
- the pressure-sensitive adhesive of the present invention essentially contains the maleimide compound.
- the pressure-sensitive adhesive of the present invention can be easily cured by active energy rays, and even when cured by ultraviolet light or visible light, no photopolymerization initiator is added or a small amount of photopolymerization initiator is used. These compounds have excellent curability, but may contain a photopolymerization initiator if necessary.
- benzoin and its alkyl ethers When a photopolymerization initiator is added, benzoin and its alkyl ethers, acetophenones, anthraquinones, thioxanthonones, ketals, benzophenones, xanthones, and acylphosphinoxides are used as the photopolymerization initiator. And ⁇ -diketones.
- a photosensitizer can be used in combination in order to improve the sensitivity with active energy rays.
- the photosensitizer examples include benzoic acid-based and amine-based photosensitizers. These can be used in combination of two or more. The mixing ratio of these is preferably from 0.01 to 10 parts by mass with respect to 100 parts by mass of the maleimide compound.
- the photopolymerization initiator those of benzophenones and thioxanthones are preferable because they have a high effect of improving the curing speed of the composition.
- the pressure-sensitive adhesive of the present invention has a reactive unsaturated group such as a (meth) acrylic monomer and a (meth) acrylic oligomer in order to enhance the adhesive performance of the cured coating film or to adjust the sensitivity of the pressure-sensitive adhesive.
- a reactive unsaturated group such as a (meth) acrylic monomer and a (meth) acrylic oligomer in order to enhance the adhesive performance of the cured coating film or to adjust the sensitivity of the pressure-sensitive adhesive.
- Compounds may be added.
- Examples of the (meth) acrylic monomer include alkyl acrylate or alkyl methacrylate (hereinafter, acrylate or methacrylate is referred to as (meth) acrylate), hydroxyalkyl (meth) acrylate, and (meth) acrylate of a phenol alkylene oxyside adduct. And mono- or di (meth) acrylates of glycols, polyol poly (meth) acrylates, and poly (meth) acrylates of polyol alkylene oxide adducts.
- Examples of the (meth) acrylic oligomer include urethane (meth) acrylate oligomer, polyester (meth) acrylate oligomer, and epoxy (meth) acrylate oligomer.
- the compounding ratio of the compound having a reactive unsaturated group is as follows: maleimide compound 100
- the amount is preferably 50 parts by mass or less, more preferably 20 parts by mass or less based on parts by mass.
- a polymer may be added to the pressure-sensitive adhesive of the present invention in order to adjust the viscosity before curing or the adhesive performance after curing.
- the polymer include, but are not limited to, (meth) acrylate polymers, polystyrene, polyolefin, and the like.
- the (meth) acrylate polymer having a maleimide group represented by the following formula (4) is one of the maleimide polymers of the present invention in curing for the purpose of increasing the water resistance and heat resistance of the adhesive. It is preferable because it crosslinks with a halide compound.
- a compound having one maleimide group can be used in combination as long as the curability by irradiation with active energy and the performance of the cured coating film are not impaired.
- the compound include a compound having one maleimide group in a skeleton similar to the above, and a compound having a maleimide group and an ethylenically unsaturated group.
- the maleimide compound of the present invention uses, as a raw material, a polymer polyol produced from the radically polymerizable monomer described above, the polymer polyol has two or more hydroxyl groups in one molecule. A mixture with one having one hydroxyl group in the molecule may be used.
- the compound obtained is a mixture of a compound having two or more maleimide groups and a compound having one maleimide group, which can be used as it is.
- the compounding ratio of the compound having one maleimide group is preferably 80 parts by mass or less, more preferably 50 parts by mass or less, based on 100 parts by mass of the maleimide compound.
- a compound having a maleimide group other than the maleimide group can be used in combination as long as the curability by irradiation with active energy and the performance of the cured coating film are not impaired.
- a compound having a maleimide group represented by the following formula (4) or (5) and having the same skeleton as described above, and a compound having the same skeleton as the above (4) or ( 5)
- Compounds having a maleimide group and an ethylenically unsaturated group represented by etc. can be mentioned.
- the mixing ratio of these maleimide compounds is as follows. It is preferably at most 150 parts by mass, more preferably at most 50 parts by mass, based on 0 parts by mass.
- R 4 and R 5 are each independently an alkyl group having 4 or less carbon atoms, or are each a group forming a carbocyclic ring together.
- Examples of the group forming a carbocycle include a group —CH 2 CH 2 CH 2 — or a group —CH 2 CH 2 CH 2 CH 2 —.
- the compound having a maleimide group other than the maleimide group a compound having two or more maleimide groups represented by the above formula (5) is preferable because the curability of the pressure-sensitive adhesive can be improved.
- a compound having the same skeleton as described above is preferable.
- the blending ratio of the maleimide compound is preferably 150 parts by mass or less, more preferably 50 parts by mass or less, based on 100 parts by mass of the maleimide compound.
- a tackifier may be added to the pressure-sensitive adhesive of the present invention in order to lower the glass transition temperature (hereinafter abbreviated as Tg) of the cured coating film or to enhance the pressure-sensitive adhesive performance.
- tackifiers can be used, and examples thereof include natural resins such as rosin-based resins and terpene-based resins and derivatives thereof, and synthetic resins such as petroleum resins. Among these, those having no double bond or having a small ratio of double bond are preferable because the hardening of the pressure-sensitive adhesive by active energy rays is small.
- the mixing ratio of the tackifier is preferably 20 parts by mass or less, more preferably 10 parts by mass or less, based on 100 parts by mass of the maleimide compound. When the compounding amount of the tackifier exceeds 20 parts, the viscosity of the pressure-sensitive adhesive becomes too high, so that the coatability may be lowered or the heat resistance may be lowered.
- crosslinking agent The pressure-sensitive adhesive of the present invention may be used by adding a cross-linking agent which reacts promptly at room temperature for the purpose of cross-linking between molecules of the polymer in order to enhance heat resistance and water resistance.
- a cross-linking agent include a polyvalent isocyanate compound, a polyoxazoline compound, an epoxy resin, an azidiline compound, a polycarboposite imide compound, and a coupling agent.
- ester bonds which are present in a large amount in the adhesive, are used over a long period of time under severe conditions such as high temperature and high humidity, not only the ester bonds are hydrolyzed by moisture, resulting in a decrease in molecular weight.
- the acidic carboxyl group generated by the hydrolysis further promotes the hydrolysis of the ester bond, so that the adhesive strength is reduced, and the adhesive strength is reduced. It is known that there is a problem in that an adhesive layer remains on the product after the agent layer is cohesively fractured and peeled off.
- the lipoxyl group generated by the hydrolysis can be trapped, and the further progress of the hydrolysis can be prevented.
- Examples of the acid masking agent include a carbodiimide compound, an oxazoline compound, and an epoxy compound.
- the compounding ratio of the acid masking agent is preferably 0.1 to 2 parts by mass per 100 parts by mass of the maleimide compound. If the proportion is less than 0.1 part by mass, the effect of the acid masking agent may not be sufficiently exerted, and if the proportion is more than 2 parts by mass, no further effect is expected and the cost is reduced. In addition, they may exhibit a plasticizing effect and reduce the adhesive performance of the cured product.
- the pressure-sensitive adhesive of the present invention may contain an ultraviolet absorber and a light stabilizer for improving light resistance.
- the ultraviolet absorber examples include benzotriazole-based ultraviolet absorbers, and include 2- (5-methyl-2-hydroxyphenyl) benzotriazole and 2- (3,5-di-t-amyl-2-hydroxy). Phenyl) benzotriazole etc. be able to.
- Examples of the light stabilizer include a hindered amine light stabilizer and a benzoate light stabilizer.
- Examples of the benzoate-based light stabilizer include 2,4-di-t-butylphenyl-3,5-di-t_butyl-4-hydroxybenzoate and the like.
- Fillers may be added to the pressure-sensitive adhesive of the present invention to enhance coloring and adhesion performance.
- Specific examples of the filler include various silicas, dyes, calcium carbonate, magnesium carbonate, titanium oxide, and oxides. Iron and glass fiber.
- a radical polymerization inhibitor such as hydroquinone and hydroquinone monomethyl ether may be blended depending on the use.
- Common additives used in adhesives and pressure-sensitive adhesives, such as dispersion stabilizers, hydrophilic resins, latexes, wetting agents, and leveling improvers, can be used together in commonly used proportions.
- an organic solvent can be blended if necessary. Further, the above-mentioned phosphorus compound and antioxidant may be blended.
- the pressure-sensitive adhesive of the present invention can be used for various applications, and is usually used in the form of a pressure-sensitive adhesive sheet.
- the adhesive sheet may be manufactured according to a conventional method.
- a preferable method for example, a method in which the pressure-sensitive adhesive of the present invention is applied to a base material, and the applied film is irradiated with active energy rays to be cured.
- Examples of the substrate include metal, plastic, glass, ceramics, wood, paper, printing paper, and fibers.
- Metals include aluminum, iron and copper, and plastics include vinyl chloride polymers, acrylate polymers, -Ponate, polyethylene terephthalate, acrylonitrile butadiene styrene copolymer, polyethylene and polypropylene.
- Examples of the method of applying the adhesive include roll coating, dara pie printing, screen printing, die coating, and knife coating.
- the coating amount of the pressure-sensitive adhesive on the base material may be appropriately selected according to the intended use, but the preferred coating amount is 5 to 200 g / m 2 , and more preferably 10 to! Is OO g / m 2. If it is less than 5 g Zm 2 , the adhesive strength may be insufficient, and if it is more than 200 g, the desired performance may not be obtained because the active energy ray hardly reaches the deep part.
- the film is irradiated with an active energy ray to crosslink the maleimide groups of the maleimide compound, thereby increasing the molecular weight, and improving the cohesive force and adhesive force of the obtained cured coating film.
- the method of irradiating the active energy ray may be in accordance with a method conventionally used for an active energy ray-curable adhesive.
- the active energy ray include visible light, ultraviolet ray, X-ray and electron beam, and it is preferable to use ultraviolet ray because an inexpensive apparatus can be used.
- Ultraviolet, high, medium or low pressure mercury lamps, metal halide lamps, xenon lamps, electrodeless lamps, carbon arc lamps, etc. can be used as the light source when using ultraviolet light, and irradiation can be performed for several seconds to several minutes. .
- the Tg of the cured coating film of the pressure-sensitive adhesive of the present invention is preferably 11 ° C. or less, more preferably 130 ° C. or less.
- T g means the peak temperature of ta ⁇ ⁇ obtained by measuring the temperature dependence using a dynamic viscosity measuring device.
- the pressure-sensitive adhesive of the present invention can be used for various applications.
- an adhesive product such as an adhesive tape, an adhesive label, and an adhesive sheet.
- adhesive products include an adhesive sheet for confidential postcards, an adhesive sheet for wallpaper, a double-sided tape, a seal, a sticker, and a masking film.
- the adhesive-type cured coating film of the present invention is excellent in water resistance, it is particularly used for applications requiring water resistance, specifically, for sealing canned beverage containers, and for signboards used outdoors. It is useful for the production of pressure-sensitive adhesives for automobiles and car stickers.
- the pressure-sensitive adhesive of the present invention has high safety and can be preferably used as a pressure-sensitive adhesive used for a tape or the like directly attached to the skin. Specifically, first-aid ties, magnetic ties, surgical tape used to secure gauze and catheters to the body, tightly covering wounds prevent external infections, relieve pain and reduce wounds in moist environments.
- Accelerated wound covering material used for healing and preservation and strengthening of joint and muscle injuries by exercise prevention, first aid treatment and relapse prevention (rehabilitation).
- a tape preparation used in a transdermal therapeutic system for absorbing a drug from the skin and guiding the drug into the body.
- the active energy ray-curable pressure-sensitive adhesive of the present invention since it is liquid at normal temperature, it is easy to handle and has excellent coatability. Moreover, even when irradiated with visible light or ultraviolet light, it has a practically crosslinkable or curable property in the absence of a photopolymerization initiator, so that it has low odor and toxicity and is safe. Further, the obtained cured coating film is not colored, is excellent in various adhesive properties, and has properties of being excellent in water resistance and heat resistance.
- parts means parts by mass.
- IPDI isophorone diisocyanate
- DBTL di-n-butyltin dilaurate
- CM 2-hydroxyethyl citracamide
- the viscosity of this compound at 25 was 600,000 mPa ⁇ S, and the number average molecular weight was about 600,000. This compound is called Ml.
- Example 1 250 g of Kiyopol 50,000 PA, 1,6-hexamethylene diisocyanate (manufactured by Nippon Polyurethane Co., Ltd., hereinafter referred to as HDI) instead of IPDI 16.
- HDI 1,6-hexamethylene diisocyanate
- Example 6 8g, 0.025g of DBTL and 15.8g of CM-ETA were added, 0.1g of butylhydroxytoluene as an antioxidant was added, and then CM-ETA was added.
- a maleimide compound was produced in the same manner as in 1.
- the compound had a viscosity at 25 ° C of 100,000 mPa ⁇ S and a number average molecular weight of about 600,000. This compound is called M2.
- Example 1 in place of Kiodipore 500 PA, Kyopol 2000 PA [polyester diol, which is a reaction product of 2,4-getyl-1,5-pentanediol and adipic acid, manufactured by Kyowa Hakko Kogyo Co., Ltd. ], 200 g of IPDI, 0.07 g of DBTL, 0.038 g of DBTL, and 31.8 g of CM-ETA. The compound was prepared.
- the viscosity of this compound at 25 was 900,000 mPa ⁇ S, and the number average molecular weight was about 300,000. This compound is called M3.
- Kiodipol 200 BA polyyesterdiol which is a reaction product of butylethylpropanediol and adipic acid, manufactured by Kyowa Hakko Kogyo Co., Ltd.
- a maleimide compound was produced in the same manner as in Example 1, except that 40.7 g of IPDI, 0.038 g of DBTL, and 31.8 g of CM-ETA were used.
- the viscosity of this compound at 25 was 7.5 million mPa ⁇ S, and the number average molecular weight was about 300.000. This compound is called M4.
- Example 5 M1 produced in Example 1 and M'3 produced in Comparative Example 3 described later were blended at a mass ratio of 2: 1. The viscosity of this composition at 25 ° C. was 78,000 mPa ⁇ S. ⁇ Example 6
- E1ast 0 stab HOI manufactured by Nisshinbo Co., Ltd., which is a carpoimide compound of an acid masking agent
- TPP triphenylphospho
- a polyester-based bismaleimide acetate compound represented by the following formula (6) [LUM CURE manufactured by Dainippon Ink Mfg. Co., Ltd. MIA—200, hereinafter called LUM.
- R represents an alkylene group
- n represents a value at which the number average molecular weight becomes about 100,000.
- the viscosity of this composition at 25 ° C. was 550,000 mp a ⁇ S.
- Example 2 To a flask similar to that used in Example 1 equipped with a Dean-Stark trap, a polyester of carboxylic acid at both ends [2,4-getyl-1,5-pentanediol and adipic acid reactant, number average 240 g of a molecular weight of 330, an acid value of 37 KO HmgZg] was charged, the temperature was increased to 120 with stirring, and dehydration was performed for 1 hour under reduced pressure.
- a polyester of carboxylic acid at both ends [2,4-getyl-1,5-pentanediol and adipic acid reactant, number average 240 g of a molecular weight of 330, an acid value of 37 KO HmgZg] was charged, the temperature was increased to 120 with stirring, and dehydration was performed for 1 hour under reduced pressure.
- Example 1 Clarpol P-40500 [polyesterdiol which is a reaction product of 3-methyl-1,5-pentanediol and sebacic acid, produced by Kuraray Co., Ltd.] Use 200 g, 23 g of IPDI, 0.025 g of DBTL and 16.5 g of CM-ETA, and use Penyu erythritil * tetrakis [3 -— (3, (3, 5-Di-t-butyl-4-hydroxyphenyl) probionate] [IRG ANOX 110, manufactured by CHIPA Specialty Chemicals Co., Ltd.] Add 0.04 g and TPP 0.1 lg as a phosphorus compound A maleimide compound was produced in the same manner as in Example 1 except for the above.
- This compound had a viscosity at 25 ° C. of 650,000 mpa ⁇ S, and a number average molecular weight of about 50,000. This compound is called M6.
- Example 1 the reaction was carried out at a ratio of 0.6 mol of 2,4-1-ethyl-1,5-pentanediol, 0-1 mol of ethylenedaricol, 0.3 mol of 1,6-hexanediol and 1 mol of sebacic acid.
- 200 g of the polyesterdiol conjugate A1 having a number-average molecular weight of about 5,000, 18.3 g of IPDI, 0.0258 of DBTL and 13 of M—ETA g of maleimide compound was produced in the same manner as in Example 1, except that 0.04 g of BHT was added as an antioxidant and 0.1 g of TPP was added as a phosphorus compound.
- the viscosity at 25 of this compound was 550,000 mpa'S, and the number average molecular weight was about 600,000. This compound is called M7.
- the viscosity at 25 of this compound was 35,000 mpa ⁇ S, and the number average molecular weight was about 480. This compound is called M8.
- Example 2 2-hydroxyethyltetrahydrophthalimide [compound represented by the following formula (7) instead of CM-ETA]. Hereafter called HT—ETA.
- the reaction was carried out in the same manner as in Example 2 except that 20.5 g of the above compound was used to obtain a compound different from the maleimide compound of the present invention.
- the viscosity of the compound at 25 was 900,000 mPa ⁇ S, and the number average molecular weight was about 600,000. This compound is called M'1.
- Example 1 2-hydroxyethylmaleimide [compound represented by the following formula (8) instead of CM-ETA. Hereafter MT-ETA. 24.3 g of Except for the above, the reaction was carried out in the same manner as in Example 1 to obtain a compound different from the maleimide compound of the present invention.
- the viscosity of this compound at 25 ° C. was 800,000 mpa ′S, and the number average molecular weight was about 600,000. This compound is called M'3.
- the compounds or compositions obtained in the above Examples and Comparative Examples were used as pressure-sensitive adhesives.
- An adhesive is applied to the surface of a 50-im thick polyester film, which is a substrate sheet, to a thickness of 25 Urn, and a 12-OWZ cm condensing high-pressure mercury lamp (1 UV light was irradiated through four passes at a conveyor speed of 6.6 m / min under a light and a height of 1 Ocm). This was cut into 20 Omm in the length direction and 25 mm in the width direction to obtain a test specimen.
- ⁇ Decrease in adhesive strength is 20% or more and less than 50%
- Adhesive strength reduction rate is 50% or more
- the degree of yellowing of the test specimen was visually observed and evaluated according to the following three grades.
- Adhesive evaluation result Maleimide compound Other male adhesive Adhesive strength S A F Water resistance Yellowing [Properties] Mido compound properties (g / inch T properties (parts) [Properties])
- the active energy ray-curable pressure-sensitive adhesive of the present invention is easy to handle, and can be cross-linked or cured in the absence of a photopolymerization initiator or in a small amount even when irradiated with visible light or ultraviolet light.
- the resulting cured coating is not colored, has excellent adhesive performance, and has excellent properties of water resistance and heat resistance.It is extremely suitable for applications using adhesives and adhesive sheets. It is something.
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Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/505,409 US20050101683A1 (en) | 2002-02-28 | 2003-02-27 | Pressure-sensitive adhesive curable with active energy ray and pressure-sensitive adhesive sheet |
EP03743046A EP1482015A4 (en) | 2002-02-28 | 2003-02-27 | ENERGY RADIATION HARDENABLE ADHESIVE AND ADHESIVE ADHESIVE ADHESIVE FOIL |
JP2003571367A JP4254539B2 (ja) | 2002-02-28 | 2003-02-27 | 活性エネルギー線硬化型粘着剤及び粘着シート |
AU2003220836A AU2003220836A1 (en) | 2002-02-28 | 2003-02-27 | Pressure-sensitive adhesive curable with active energy ray and pressure-sensitive adhesive sheet |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2002054983 | 2002-02-28 | ||
JP2002-54983 | 2002-02-28 |
Publications (1)
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WO2003072674A1 true WO2003072674A1 (fr) | 2003-09-04 |
Family
ID=27764425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2003/002216 WO2003072674A1 (fr) | 2002-02-28 | 2003-02-27 | Adhesif sensible a la pression durcissable au moyen d'un rayon d'energie active et feuille d'adhesif sensible a la pression |
Country Status (6)
Country | Link |
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US (1) | US20050101683A1 (ja) |
EP (1) | EP1482015A4 (ja) |
JP (1) | JP4254539B2 (ja) |
CN (1) | CN1261513C (ja) |
AU (1) | AU2003220836A1 (ja) |
WO (1) | WO2003072674A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2004108850A1 (ja) | 2003-06-05 | 2004-12-16 | Toagosei Co., Ltd. | 活性エネルギー線硬化型粘着剤組成物及び粘着シート |
JP2006335907A (ja) * | 2005-06-02 | 2006-12-14 | Toagosei Co Ltd | 活性エネルギー線硬化型粘着剤組成物 |
CN100549118C (zh) * | 2004-06-03 | 2009-10-14 | Lg电线有限公司 | 含感光性高分子的粘合剂组合物及使用该组合物的粘合片 |
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JP4600283B2 (ja) * | 2003-08-27 | 2010-12-15 | 東亞合成株式会社 | 活性エネルギー線硬化型皮膚貼付剤用組成物及び皮膚貼付剤 |
CN102498183A (zh) * | 2009-09-16 | 2012-06-13 | 日东电工株式会社 | 丙烯酸类粘合带 |
CN103764777B (zh) * | 2011-08-25 | 2016-08-17 | Lg化学株式会社 | 压敏粘合剂 |
CN108250369B (zh) * | 2017-12-21 | 2021-03-09 | 万华化学集团股份有限公司 | 一种低气味高耐候性聚合物多元醇的制备方法 |
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JP2006335907A (ja) * | 2005-06-02 | 2006-12-14 | Toagosei Co Ltd | 活性エネルギー線硬化型粘着剤組成物 |
JP4577094B2 (ja) * | 2005-06-02 | 2010-11-10 | 東亞合成株式会社 | 活性エネルギー線硬化型粘着剤組成物 |
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AU2003220836A1 (en) | 2003-09-09 |
EP1482015A4 (en) | 2006-06-28 |
EP1482015A1 (en) | 2004-12-01 |
CN1639289A (zh) | 2005-07-13 |
CN1261513C (zh) | 2006-06-28 |
JPWO2003072674A1 (ja) | 2005-06-23 |
JP4254539B2 (ja) | 2009-04-15 |
US20050101683A1 (en) | 2005-05-12 |
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