CN108603084A - Sticker and adhesive sheet - Google Patents

Sticker and adhesive sheet Download PDF

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Publication number
CN108603084A
CN108603084A CN201780008321.8A CN201780008321A CN108603084A CN 108603084 A CN108603084 A CN 108603084A CN 201780008321 A CN201780008321 A CN 201780008321A CN 108603084 A CN108603084 A CN 108603084A
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CN
China
Prior art keywords
weight
sticker
acrylic acid
methyl
compound
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Granted
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CN201780008321.8A
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Chinese (zh)
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CN108603084B (en
Inventor
加藤悠太郎
春田成
春田一成
坪井优季
堀口雅之
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Toyochem Co Ltd
Artience Co Ltd
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Toyo Ink SC Holdings Co Ltd
Toyochem Co Ltd
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Publication of CN108603084A publication Critical patent/CN108603084A/en
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00Adhesives 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
    • C09J133/04Homopolymers or copolymers of esters
    • C09J133/06Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/08Homopolymers or copolymers of acrylic acid esters
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/06Non-macromolecular additives organic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08Macromolecular additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J133/00Adhesives 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
    • C09J133/02Homopolymers or copolymers of acids; Metal or ammonium salts thereof
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers

Abstract

The purpose of the present invention is to provide a kind of stickers and adhesive sheet meeting high nonvolatile component, working life and screening characteristics and can be used as that the good package curing type of heat resistance uses.Acrylic acid series polymeric compounds (A) obtained by the sticker polymerize the monomer mixture of 2 ethylhexyl of acrylic acid of the monomer (a1) and 15 weight of weight %~94 % containing acidic groups containing 6 mass of mass %~18 % in the presence of chain tra nsfer compound, chelate type curing agent (B), organic solvent (C) is (wherein, except alcohol (D)), alcohol (D) and keto-enol tautomer form at least one of compound (E), the chain tra nsfer compound includes selected from by methyl ethyl ketone, mercaptan and adhesion assign one kind in the group that resin is formed, a concentration of mass of 52 mass %~75 % of nonvolatile component.

Description

Sticker and adhesive sheet
Technical field
The present invention relates to a kind of solvent type stickers.
Background technology
Sticker uses in adhesion label or adhesive sheet, therefore can be widely used.Sticker is usually that solvent type is viscous Agent and aqueous sticker, wherein needing to increase for the few aqueous sticker of cheap, solvent discharge.Another party Face, it is insufficient on the way that solvent type sticker is widely used in the aqueous sticker performance such as water resistance or heat resistance.But about molten Agent sticker, for market, the requirement to the reduction of cost reduction, carrying capacity of environment is strong.Therefore, following method is had studied, I.e. by improving the nonvolatile component of solvent type sticker, and the solvent that sticker is carried out the when of applying dry and volatilized is reduced, And inhibit dry thermal energy.In addition, the problem of general solvent type sticker is due to working life and using mostly will apply 2 package curing types of allotment curing agent before applying, and have studied the sticker for having the working life length of curing agent using pre-coordination is made (a hereinafter referred to as package curing type) and reduce the method for adaptation step etc. at coating scene to reduce cost and the reduction of adhesive sheet The method of carrying capacity of environment.
But about solvent type sticker, if merely reducing contained organic solvent, relatively nonvolatile component It improves, the viscosity of sticker rises.Therefore, the mobility of sticker declines, and the adhering agent layer surface formed using coating Become uneven, thus there are problems that declining with the adhesion of to-be-adhered object.
Therefore, a kind of acrylic acid series polymeric compounds containing weight average molecular weight 50,000~300,000 are disclosed in patent document 1 And the chain transfer constant of the vinyl-acetic ester at 60 DEG C in organic solvent be 250 or more organic solvent (B) solid at Point a concentration of 60% or more and viscosity be 20,000mPas/25 DEG C of sticker below.
Existing technical literature
Patent document
Patent document 1:Japanese Patent Laid-Open 2011-246700 bulletins
Invention content
Problem to be solved by the invention
But sticker before can get the low adhering agent layer etc. of surface smoothness, screening characteristics is low, will weigh in addition to this Amount average molecular weight set it is too low, if therefore under high temperature environment use adhesive sheet, there are adhering agent layer agglomerate destruction and The problem of heat resistance that adhesive sheet is removed from to-be-adhered object.
Meeting high nonvolatile component, working life and screening characteristics the purpose of the present invention is to provide a kind of and can be used as heat resistance The sticker and adhesive sheet that a good package curing type uses.
Technical means to solve problem
The sticker of the present invention is included in the presence of chain tra nsfer compound to containing acid containing 6 mass of mass %~18 % The monomer mixture of the monomer (a1) of property base and the 2-EHA of 15 weight of weight %~94 % is polymerize and is obtained Acrylic acid series polymeric compounds (A), chelate type curing agent (B), organic solvent (C) (wherein, except alcohol (D)), alcohol (D) and ketone- Enol tautomer forms at least one of compound (E),
The chain tra nsfer compound includes in the group being made of methyl ethyl ketone, mercaptan and adhesion imparting resin One kind, a concentration of mass of 52 mass %~75 % of nonvolatile component.
The effect of invention
According to the present invention, it is possible to provide a kind of to meet high nonvolatile component, working life and screening characteristics and to can be used as heat resistance good The sticker and adhesive sheet that a good package curing type uses.
Specific implementation mode
Term is defined before the present invention is described in detail.Piece, film and band are synonym.(methyl) propylene Acid includes acrylic acid and methacrylic acid.(methyl) acrylate includes acrylate and methacrylate.Monomer be containing Single amount body of ethylene unsaturated double-bond.To-be-adhered object refers to the object for attaching adhesive sheet.
The sticker of the present invention is included in the presence of chain tra nsfer compound to containing acid containing 6 mass of mass %~18 % The monomer mixture of the monomer (a1) of property base and the 2-EHA of 15 weight of weight %~94 % is polymerize and is obtained Acrylic acid series polymeric compounds (A), chelate type curing agent (B), organic solvent (C) (wherein, except alcohol (D)), alcohol (D) and ketone- Enol tautomer forms at least one of compound (E),
The chain tra nsfer compound includes in the group being made of methyl ethyl ketone, mercaptan and adhesion imparting resin One kind, a concentration of mass of 52 mass %~75 % of nonvolatile component.
The sticker of the present invention can expand propylene by using the lower 2-EHA of suitable reaction speed The molecular weight distribution of sour based polymer (A), and then by using chelate type curing agent (B) and alcohol (D) and keto-enol change Isomers forms any one of compound (E), and high nonvolatile component, working life and screening characteristics can be improved.In addition, using appropriate Monomer (a1) containing acidic groups and the combination using chelate type curing agent (B), the heat resistance of sticker can be improved.
The sticker of the present invention forms adhering agent layer preferably by coating, and be processed into the adhesive sheet for having base material and It uses.Furthermore sticker of the invention is not only adhesive sheet, and is not interfered as so-called " paste " with direct liquid Form uses.In addition, also being used as the so-called cast adhesive sheet being only made of adhering agent layer without using base material.
In the present invention, acrylic acid series polymeric compounds (A) are the polymer that polymerisation in solution is carried out to monomer mixture.Polymerisation in solution Well known polymerization can be used.In addition, monomer mixture preferably carries out polymerisation in solution in the presence of chain tra nsfer compound.
Monomer mixture includes the monomer (a1) and 15 weights of weight %~94 containing acidic groups of 6 mass of mass %~18 % The 2-EHA of % is measured as required monomer, and includes monomer other than these monomers as arbitrary monomer.
Monomer (a1) containing acidic groups contributes to acrylic acid series polymeric compounds (A) and the hardening of chelate type curing agent (B) anti- The crosslinking answered, by the crosslinking, the cohesiveness of adhering agent layer improves.
Monomer (a1) containing acidic groups can for example be enumerated:(methyl) acrylic acid, (methyl) acrylic acid 2- carboxyethyls, (first Base) acrylic acid dimer, butenoic acid, maleic acid, maleic anhydride, fumaric acid, citraconic acid, glutaconate, itaconic acid, acrylamide N- glycolics, cinnamic acid, hexahydrophthalic acid 2- (methyl) acryloyloxyethyl ester, phthalic acid 2- (methyl) acryloyl Oxygroup ethyl ester, succinic acid 2- (methyl) acryloyloxyethyl ester etc..It is preferably (methyl) acrylic acid in these monomers.
Monomer (a1) containing acidic groups includes preferably the 6 weight % of weight %~18 in 100 weight % of monomer mixture, The more preferably 8 weight % of weight %~16, and then preferably 10 weight of weight %~15 %.If including 6 weight %'s or more contains The monomer (a1) of acidic groups then can get good heat resistance.In addition, if including 18 weight % hereinafter, if can get it is good Screening characteristics and good working life.
2-EHA polymerization speed in Raolical polymerizable is relatively low, is easy to expand acrylic acid series polymeric compounds (A) molecular weight distribution.It can inhibit the viscosity of sticker as a result, therefore the nonvolatile component concentration of sticker set ground In the case of height, good screening characteristics can get.
2-EHA includes preferably the 15 weight % of weight %~94 in 100 weight % of monomer mixture, The more preferably 30 weight % of weight %~90, and then the preferably 40 weight % of weight %~80, especially preferably 45 weight %~ 60 weight %.
If including suitable 2-EHA, heat resistance and screening characteristics improve.
Arbitrary monomer is preferably (methyl) acrylate monomer, the amide containing other than 2-EHA in the present invention The monomer of base, amino-containing monomer, the monomer containing epoxy group, the monomer containing aromatic rings, the monomer containing alicyclic type hydrocarbon, vinyl The monomer etc. of ester, (methyl) acrylic acid alkoxy ester, hydroxyl.
(methyl) acrylate monomer can for example be enumerated:(methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) N-butyl acrylate, (methyl) tert-butyl acrylate, (methyl) isobutyl acrylate, (methyl) Hexyl 2-propenoate, (methyl) third Olefin(e) acid 2- ethylhexyls, (methyl) n-octyl, (methyl) Isooctyl acrylate monomer, the positive nonyl ester of (methyl) acrylic acid, (first Base) the different nonyl ester of acrylic acid, the positive last of the ten Heavenly stems ester of (methyl) acrylic acid, (methyl) isodecyl acrylate, (methyl) acrylic acid dodecyl Ester, (methyl) acrylic acid n-tridecane base ester, (methyl) n-myristyl base ester etc..In these monomers, it can enumerate:Have (methyl) acrylate ((methyl) methyl acrylate, (methyl) ethyl acrylate) of the alkyl chain of carbon number 1~2, acrylic acid are just Butyl ester, 2-EHA etc..Furthermore (methyl) acrylic monomer does not include (methyl) acrylic acid alkoxy ester.
The monomer of amide-containing can for example be enumerated:(methyl) acrylamide, N- methyl (methyl) acrylamide, N, N- diformazans Base (methyl) acrylamide, N, N- diethyl (methyl) acrylamide, N, N '-methylene-bisacrylamides, N- methylol (first Base) acrylamide, N- ethoxys (methyl) acrylamide, N- methoxy ethyls (methyl) acrylamide, N- vinyl pyrrole pyridines Ketone, diacetone acrylamide, N, N- dimethylaminopropyls (methyl) acrylamide, (methyl) acryloyl morpholine etc..
Amino-containing monomer can for example be enumerated:(methyl) acrylic acid N, N- dimethylamino ethyl ester, (methyl) acrylic acid N, N- dimethylamino propyl ester etc..
Monomer containing epoxy group can for example be enumerated:(methyl) glycidyl acrylate, (methyl) acrylic acid methylglycidyl Glyceride, allyl glycidyl ether etc..
Monomer containing aromatic rings can for example be enumerated:Phenyl acrylate, (methyl) phenoxyethyl acrylate, (methyl) propylene Acid benzyl ester, (methyl) biphenyl acrylate, styrene, vinyltoluene, α-methylstyrene etc..
As the monomer containing alicyclic type hydrocarbon, such as can enumerate:(methyl) cyclohexyl acrylate, two ring of (methyl) acrylic acid Pentyl ester, (methyl) isobornyl acrylate etc..
Vinyl esters can for example be enumerated:Vinyl-acetic ester, vinyl propionate base ester, vinyl laurate etc..
(methyl) acrylic acid alkoxy ester can for example be enumerated:(methyl) acrylic acid 2- methoxy acrylates, (methyl) acrylic acid 2- ethoxy ethyl esters, (methyl) acrylic acid 2- methoxyl groups propyl ester, (methyl) acrylic acid 3- methoxyl groups propyl ester, (methyl) acrylic acid 2- Methoxybutyl, (methyl) acrylic acid 4- methoxybutyls etc..
The monomer of hydroxyl can for example be enumerated:(methyl) acrylic acid 2- hydroxy methacrylates, (methyl) acrylic acid 2- hydroxy propyl esters, (methyl) acrylic acid 4- hydroxybutyls, the own ester of (methyl) acrylic acid 6- hydroxyls, (methyl) acrylic acid 8- hydroxyls monooctyl ester, (methyl) third Olefin(e) acid 10- hydroxyls last of the ten Heavenly stems ester, (methyl) acrylic acid 12- hydroxylaurics ester, acrylic acid (4- Hydroxymethyl-cyclo-hexyls) methyl esters, N- hydroxyl first Base (methyl) acrylamide, vinyl alcohol, allyl alcohol, 2- hydroxyethyl vinyl ethers, 4- hydroxybutyl vinyl ethers etc..
In arbitrary monomer, if using the monomer of hydroxyl, the cohesiveness of adhering agent layer increases, and heat resistance improves, because This is preferably.The monomer of hydroxyl is more preferably (methyl) acrylic acid 2- hydroxy methacrylates, (methyl) acrylic acid 4- hydroxybutyls.
The monomer of hydroxyl preferably in 100 weight % of monomer mixture comprising 0.05 weight of weight %~3 %, it is more excellent It is selected as the 0.1 weight % of weight %~2, and then preferably 0.2 weight of weight %~1.5 %.
Arbitrary monomer can be used alone or be used in combination two or more.
Polymerisation in solution uses the polymerization initiator of free redical polymerization.Polymerization initiator is preferably azo-compound, peroxide Compound etc..Azo-compound can for example be enumerated:2,2 '-azos bis- (2- methyliso-butyronitriles), 2,2 '-azobis isobutyronitriles etc..It crosses Oxide is preferably tert-butyl hydroperoxide -2 ethyl hexanoic acid ester, benzoyl peroxide, di-t-butyl peroxide, 1,1- bis- (tert-butyl hydroperoxide) -3,3,5- trimethyl-cyclohexanes etc..
Polymerization initiator can be used alone or be used in combination two or more.
Relative to 100 parts by weight of monomer mixture, polymerization initiator preferably using the parts by weight of 0.03 parts by weight~1.5, The parts by weight of more preferably 0.1 parts by weight~1.If using suitable polymerization initiator, it is easily adjusted polymerization average molecular weight, it can Adjustment adhesion physical property.
The temperature of polymerisation in solution suitable can adjust, but usually 70 DEG C~100 DEG C or so.
For polymerisation in solution, in order to adjust molecular weight or molecular weight dispersity, chain-transferring agent can be used.Chain-transferring agent Preferably for the chain transfer constant of 60 DEG C of vinyl-acetic ester be 250 or more compound (hereinafter also referred to as chain tra nsfer Close object).If using chain-transferring agent, it is easy to get the acrylic acid series polymeric compounds of high molecular weight and low viscosity, therefore sticker Mobility improves, therefore screening characteristics further increases.Furthermore chain transfer constant is more preferably 300 or more, and then preferably 400 More than.On the other hand, about the upper limit of chain transfer constant, molecular weight can be adjusted on a small quantity if reducing usage amount, therefore need not It limits, but is 1000 or so.Furthermore the molecular weight is then weight average molecular weight as long as no special instructions.
Chain tra nsfer compound is preferably ketone, mercaptan, adhesion imparting resin etc..
Ketone can for example be enumerated:Acetone, methyl ethyl ketone, hexanone, cyclohexanone methyl ethyl ketone etc..It is preferably first in these ketone Base ethyl ketone (Methyl Ethyl Ketone, MEK).Furthermore the chain tra nsfer about the vinyl-acetic ester for 60 DEG C is normal Number, methyl ethyl ketone 738, toluene 208.9, acetone 117, ethyl acetate 33.These numerical value are to be based on J. Blanc morals Shandong (J.brandrup), E.H. Yi meter Te (E.H.Immergut) write《Polymer handbook (Polymer Handbook)》, P.II-91, the numerical value of interdisciplinary (Interscience) (1975).
Mercaptan can for example be enumerated:Mercaptoethanol, thioglycerin, thioglycolic acid, 3- mercaptopropionic acids, thiomalic acid, 2- mercaptos Base ethane sulfonic acid, butyl mercaptan, spicy thioalcohol, decyl mercaptan, dodecyl mercaptans, hexadecanethiol, octadecanethiol, cyclohexanethiol, Thiophenol, thioglycolic acid monooctyl ester, 3- mercaptopropionic acid monooctyl esters etc..In these mercaptan, preferably thioglycolic acid monooctyl ester.
The acrylic acid series polymeric compounds (A) that are used in the present invention if weight average molecular weight be can to solve the problem Range then can arbitrarily be set, and preferably 300,000~900,000, more preferably 400,000~800,000, and then preferably 500,000~700,000. If weight average molecular weight is set as range appropriate, it is easy to make heat resistance and screening characteristics and deposits.Furthermore weight average point Son amount is polystyrene obtained by being measured using gel permeation chromatography (Gel Permeation Chromatography, GPC) The molecular weight of conversion.
In addition, it is 3~12 that acrylic acid series polymeric compounds (A), which are preferably molecular weight dispersity (referring to molecular weight distribution), it is more excellent It is selected as 3~10, and then preferably 3~8.By the way that molecular weight dispersity is set as 3~12, the viscosity of acrylic acid series polymeric compounds (A) Decline, therefore is easy to make screening characteristics and heat resistance and deposit.Furthermore molecular weight dispersity is that weight average molecular weight divided by quantity are flat Numerical value obtained by average molecular weight.
The sticker of the present invention is characterized in that other than the acrylic acid series polymeric compounds (A), organic solvent (C) Chelate type curing agent (B), alcohol (D) and/or ketone-enol tautomers form compound (E).It is poly- with acrylic acid series by pair Alcohol (D) or compound (E) of chelate type curing agent (B) addition with response delay effect that object (A) reacts are closed, will not be caused Sclerous reaction in solution and good working life can be maintained, and then alcohol or compound (E) volatilization when dry, thus if painting The sticker after drying is applied, then promotes sclerous reaction, shows good heat resistance.
In the present invention, chelate type curing agent (B) is the compound comprising polyvalent metal and ligand.Polyvalent metal is for example It can enumerate:Nickel, aluminium, chromium, iron, titanium, zinc, cobalt, manganese, zirconium etc..Ligand is such as can enumerate acetylacetone,2,4-pentanedione, acetoacetic ester.
The chemical combination portion that polyvalent metal and ligand are distinguished to arbitrary combination can be used in chelate type curing agent (B), preferably The compound of acetylacetone,2,4-pentanedione or acetoacetic ester is combined in combined aluminium, ligand in polyvalent metal.
Chelate type curing agent (B) can be used alone or be used in combination two or more.
Chelate type curing agent (B) preferably allocates 0.1 weight relative to 100 parts by weight of acrylic acid series polymeric compounds (A) Part~1.5 parts by weight, the parts by weight of more preferably 0.2 parts by weight~1.2, the parts by weight of and then preferably 0.3 parts by weight~1.0.If The chelate type curing agent (B) of 0.1 parts by weight or more is allocated, then cohesiveness and heat resistance further increase.If in addition, using 1.5 parts by weight are hereinafter, then the adhesion of base material and adhering agent layer further increases.
The sticker of the present invention can be further and with other curing agents.Other curing agents are for example preferably isocyanates hardening Agent, epoxy curing agent or aziridine curing agent etc..
Isocyanate hardener is preferably diisocyanate and has trifunctional or more to what diisocyanate was modified Isocyanate group polyisocyanate.
Diisocyanate is preferably aromatic diisocyanate, aliphatic diisocyanate, alicyclic diisocyanate.
Aromatic diisocyanate can for example be enumerated:1,5- naphthalene diisocyanate, 4,4 '-diphenyl methane, two isocyanide Acid esters, 4,4 '-diphenyldimethyhnethane diisocyanate, 4,4 '-dibenzyl based isocyanates, dialkyl group diphenyl methane two are different Cyanate, tetraalkyl methyl diphenylene diisocyanate, 1,3- phenylene vulcabonds, Isosorbide-5-Nitrae-phenylene vulcabond, Toluene di-isocyanate(TDI) etc..
Aliphatic diisocyanate can for example be enumerated:It is butane-Isosorbide-5-Nitrae-diisocyanate, hexamethylene diisocyanate, different Trimethylene diisocyanate, methylene diisocyanate, 2,2,4- trimethyl hexamethylene diisocyanates, two isocyanide of dimethylbenzene Acid esters, tetramethylxylene diisocyanate, by the converting carboxylate groups of dimeric dibasic acid be isocyanate group dimer diisocyanate Ester etc..
Alicyclic diisocyanate can for example be enumerated:Hexamethylene-Isosorbide-5-Nitrae-diisocyanate, isophorone diisocyanate, Bis- (isocyanatomethyl) hexamethylenes of lysine diisocyanate, -4,4 '-diisocyanate of dicyclohexyl methyl hydride, 1,3-, methyl Cyclohexane diisocyanate, norbornene alkyl diisocyanate etc..
Polyisocyanate is preferably the so-called adduction being modified to diisocyanate using trifunctional polyol component Biuret body that object, diisocyanate are reacted with water, with the fulminuric acid ester ring formed by three molecules of diisocyanate Trimer (fulminuric acid ester body).
Polyisocyanate can for example be enumerated:The trimethylolpropane adduct of toluene di-isocyanate(TDI), hexa-methylene two are different The different trimerization of the biuret body of cyanate, the allophanates body of hexamethylene diisocyanate, isophorone diisocyanate Cyanate body etc..
Epoxy curing agent can for example be enumerated:1,3- bis- (N, N '-diglycidyl amino methyl) hexamethylenes, N, N, N ', N '-four glycidyl groups-m-xylene diamine, ethylene glycol diglycidylether, 1,6- hexanediol diglycidyl ethers, three hydroxyl first Base propane diglycidyl ether, diglycidylaniline, diglycidyl amine etc..
Aziridine curing agent can for example be enumerated:Diphenyl methane -4,4 '-bis- (1- aziridine formamido groups), trihydroxy methyl Three-β of propane-'-aziridino propionic ester, three-β of tetramethylol methane-'-aziridino propionic ester, Toluene-2,4-diisocyanate, bis- (the 1- aziridine of 4- Formamido group), triethylenemelanin, double isophthalic diformyl -1- (2- methylaziridines), three -1- (2- methyl nitrogen third Pyridine) phosphine, trimethylolpropane tris-β-(2- methylaziridines) propionic ester etc..
Other curing agents weight of adjustable 0.05 parts by weight~5.0 for 100 parts by weight of acrylic acid series polymeric compounds (A) Measure part or so.
Organic solvent (C) is used as the solvent of polymerisation in solution or the retarder thinner of the viscosity of adjustment sticker.Have Leveling and the viewpoints such as drying property and influence to environment and human body when solvent (C) in addition to this can be using coating are selected It selects.Organic solvent (C) is preferably aliphatic hydrocarbon, clicyclic hydrocarbon, aromatic hydrocarbon, ester, ketone etc..Furthermore organic solvent of the invention (C) not containing alcohol in.
Aliphatic hydrocarbon is such as can enumerate n-hexane, normal heptane.
Clicyclic hydrocarbon can for example be enumerated:Pentamethylene, hexamethylene, hexahydrotoluene, dimethyl cyclohexane, 3-methyl cyclohexanol Alkane, ethyl cyclohexane, diethyl cyclohexane, decahydronaphthalene, norbornane, tristane, hexahydro indenes hexamethylene, cyclooctane, australene Compound well known to alkene, terpinolene, limonene etc..
Aromatic hydrocarbon can for example be enumerated:Toluene, dimethylbenzene, benzene, solvent naphtha etc..
Ester can for example be enumerated:Ethyl acetate, butyl acetate etc..
Ketone can for example be enumerated:Acetone, methyl ethyl ketone, methyl iso-butyl ketone (MIBK), cyclohexanone etc..
In these, for the aspect of chain tra nsfer effect when drying property, dissolubility, polymerisation in solution, organic solvent (C) is excellent It is selected as ethyl acetate, methyl ethyl ketone, toluene.
The sticker of the present invention includes that alcohol (D) and ketone-enol tautomers form at least one of compound (E). If allocating these compounds, chelate type curing agent (B) is acted on, the working life for the sticker that can increase substantially.
Alcohol (D) can for example be enumerated:Methanol, ethyl alcohol, 1- propyl alcohol, isopropanol, n-butyl alcohol, isobutanol, the tert-butyl alcohol, 1- amylalcohols, Isoamyl alcohol, 1- hexanols, 4- methyl -2- amylalcohols, 1-heptanol, 1- octanols, isooctanol, 2-Ethylhexyl Alcohol, 1 nonyl alcohol, isononyl alcohol, 1- Decyl alcohol, DODECANOL, 1-, 1- myristyl alcohols, cetanol, 1- stearyl alcohols, isooctadecanol, 2- octyl decanols, 2- octyldodecyls Alcohol, 2- hexyl decyl alcohols, tadenan and oleyl alcohol etc..In these alcohol, waving when methanol, ethyl alcohol, 1- propyl alcohol, isopropanol are just dried For the intermiscibility of hair property and chelate type curing agent, the aspect of working life preferably.
Alcohol (D) includes preferably the 2 weight % of weight %~40, more preferably 5 weight of weight %~30 % in sticker. By the alcohol (D) comprising 2 weight % or more, working life further increases.In addition, by comprising 40 weight % hereinafter, screening characteristics It further increases, the adjustment of the molecular weight of acrylic acid series polymeric compounds (A) becomes easy.Furthermore alcohol (D) also may be used in polymerisation in solution It is used as solvent.
It is the compound that can form ketone-enol tautomers that ketone-enol tautomers, which form compound (E), preferably For acetylacetone,2,4-pentanedione, acetoacetic ester, malonate etc..
Acetoacetic ester such as methyl acetoacetate, ethyl acetoacetate, isopropyl acetoacetate.Acetoacetate can be enumerated Butyl ester, isobutyl acetoacetate, tert-butyl acetoacetate etc..
Malonate can for example be enumerated:Dimethyl malenate, diethyl malonate, dibutyl malonate etc..
In these, ketone-enol tautomers form compound (E) for volatilization easiness when dry, preferably Acetylacetone,2,4-pentanedione.
It includes 0.05 weights of weight %~5 in sticker that ketone-enol tautomers, which form compound (E) preferably, Measure %, the more preferably 0.1 weight % of weight %~3, and then preferably 0.2 weight of weight %~2 %.If including 0.05 weight % Above ketone-enol tautomers form compound (E), then working life further increase.If in addition, including 5 weight % with Under, then the cohesiveness of adhering agent layer further increases.
Alcohol (D) and ketone-enol tautomers form the reaction that compound (E) inhibits chelate type curing agent (B), because This can be used alone or is used in combination.Furthermore in the case where being used in combination, for using individually, blending amount can inhibit.
The sticker of the present invention can further include polyolefin.By the way that comprising polyolefin, the cohesiveness of sticker is further It improves, the adhesion strength to the low polarity to-be-adhered object of polyolefin can be improved.
Polyolefin can be classified as polyolefin (hereinafter, chloridized polyolefin) through chlorination with without chlorination polyolefin (hereinafter, Non-chlorinated polyolefin).As chloridized polyolefin, such as can enumerate:Chlorinated polypropylene, sour modified chlorinated polypropylene, acrylic acid change Property chlorinated polypropylene, haloflex, ethlyene dichloride vinyl acetate copolymers etc..It is excellent and right with regard to dissolubility in these For the high aspect of the adhesion strength of polyolefin to-be-adhered object, preferably chlorinated polypropylene, sour modified chlorinated polypropylene, acrylic acid Modified chlorinated polypropylene, more preferably chlorinated polypropylene.
For the high aspect of the adhesion strength improvement effect to the low polarity to-be-adhered object of polyolefin, chloridized polyolefin Chlorine containing ratio is preferably 20% or more~45% hereinafter, more preferably 28% or more~45% or less.
In addition, as non-chlorinated polyolefin, such as can enumerate:Polyethylene, polypropylene, alhpa olefin-propylene copolymer, ethylene- Vinyl acetate copolymers, polybutene, maleation polybutene, polybutadiene and its hydride, polyisoprene and its hydrogenation Object, maleinized polybutadiene, maleinized polyisoprene, polybutadiene polyol and its hydride, polyisoprene polyol And its lubricating oil such as hydrogen compound, technical oil or Liquid Paraffin etc..It is excellent with regard to dissolubility and adhered to polyolefin system in these For the high aspect of the adhesion strength of body, preferably alhpa olefin-polypropylene copolymer, polybutene, lubricating oil.As lubricating oil, preferably For paraffin series lubricating oil, naphthene series lubricating oil etc..
It is excellent for the excellent viewpoint of the transparency of sticker as workable polyolefin in the sticker of the present invention It is selected as non-chlorinated polyolefin, wherein preferably polybutene, lubricating oil.
In order to maintain with the intermiscibility of acrylic acid series polymeric compounds (A), the weight average molecular weight of polyolefin is preferably 100,000 Hereinafter, more preferably 50,000 or less.Furthermore the lower limit of the weight average molecular weight of polyolefin is not particularly limited, but preferably 200 or more.
The sticker of the present invention can further include adhesion and assign resin.Adhesion, which assigns when polymerisation in solution can be used in resin, to be made The arbitrary methods such as the method for method, allotment in acrylic acid series polymeric compounds (A).If adhesion assigns resin in polymerisation in solution When use, then play a role as chain-transferring agent and the adjustment of the molecular weight of acrylic acid series polymeric compounds (A) become easy.If in addition, It allocates in acrylic acid series polymeric compounds (A), then can further improve adhesion strength.
Adhesion assign resin softening point be preferably 80 DEG C or more, more preferably 90 DEG C or more, so preferably 100 DEG C with On.In addition, the upper limit of softening point is preferably 170 DEG C, more preferably 160 DEG C, and then preferably 155 DEG C.Tree is assigned by adhering The softening point of fat is 80 DEG C~170 DEG C, is easy to make adhesion strength and heat resistance with high level and deposit.Furthermore softening point is to be based on day Dry bulb method as defined in this industrial standard (Japanese Industrial Standards, JIS) K5902 and the softening temperature measured Degree.
Adhesion assigns resin and can for example enumerate:Rosin series resin, newtrex system resin, rosin system resin, polymerization pine Face cream system resin, terpenic series resin, terpene phenol system resin, benzofuran system resin, benzofuran indenes system resin, polystyrene Resin, diformazan benzene series resin, phenol resin, petroleum line resin etc..It is just good with the intermiscibility of acrylic acid series polymeric compounds in these And for can further improve the aspect of adhesive performance, preferably rosin series resin, newtrex system resin, rosin system resin And newtrex fat system resin, more preferably rosin system resin and newtrex fat system resin.
Adhesion imparting resin can be used alone or be used in combination two or more.
Relative to 100 parts by weight of acrylic acid series polymeric compounds (A), adhesion assigns resin preferably using the weight of 10 parts by weight~40 Measure part, the parts by weight of more preferably 15 parts by weight~35.It, can be with if the adhesion using the parts by weight of 10 parts by weight~40 assigns resin High level makes adhesion strength and cohesiveness and deposits, therefore is easy to get heat resistance.
The sticker of the present invention can further include flame retardant, heat-resisting stabilizing agent, weathering stabilizers, age resister, purple Ultraviolet absorbers, leveling agent, antistatic agent, slip agents, anticaking agent, antifoggant, lubricant, dyestuff, wax, emulsion, magnetic substance, Dielectric property regulator is as any ingredient.
About the sticker of the present invention, make a concentration of weight % of 52 weight %~75 of nonvolatile component, preferably 55 weights Measure the weight % of %~70, more preferably 55 weight of weight %~65 %.By setting ground by the nonvolatile component concentration of sticker Height can relatively inhibit the content of organic solvent (C), thus can inhibit drying cost when coating and inhibit to environment and The load of human body.
In addition, the viscosity at 25 DEG C is preferably set as 2000mPas~20000mPas by the sticker of the present invention, more Preferably 2000mPas~15000mPas, and then preferably 2000mPas~10000mPas.By by sticker Viscosity be set as in appropriate range, be easy to get screening characteristics and improve and the adhering agent layer of smooth surface.Furthermore viscosity is 25 BL type viscosimeters are used under DEG C environment, the viscosity measured after #3 rotors, rotating speed 12rpm backspins turn to start 1 minute.
The adhering agent layer that the adhesive sheet of the present invention preferably comprises base material and formed by sticker.
Adhering agent layer is the method that coating sticker is formed on base material.Or it is usually that adhesion is applied on stripping film Agent and the method for adhering agent layer will be formed by being transferred on base material.Furthermore usually not connecting with base material in adhering agent layer Stripping film and keeping are bonded on face.
Base material is preferably paper, plastics, cloth.In addition, the form of base material is preferably sheet, plate, foaming body.
The raw material of base material can for example be enumerated:The polyolefin such as polyethylene, polypropylene (polypropylene, PP) gather to benzene Polyester, polystyrene, polyvinyl chloride, the poly- carbonic acid such as dioctyl phthalate second diester (polyethylene terephthalate, PET) The cloth such as the paper such as the plastics such as ester, cellophane, good quality paper, brown paper, crimped paper, woven fabric, nonwoven fabric, ethylene propylene diene rubber, chlorine The elastomers such as butadiene rubber, isoprene rubber, epidermis etc..
The thickness of base material is usually 25 μm~10000 μm or so.
Method of spin coating, spraying coating method, rod coating method, knife rubbing method, roller for example can be used in the coating method of sticker Coating method well known to rubbing method, roller knife rubbing method, scraper for coating method, die coating method, gravure coating process etc..In addition preferably also exist Step is dried when coating.Device well known to hot-air oven, electrical baking oven, infrared heater etc. can be used in drying steps.
If in view of the balance of cost and adhesive performance, the thickness of adhering agent layer is usually 20 μm~300 μm or so, more Preferably 20 μm~100 μm or so.
The adhesive sheet of the present invention for example can be used for the top plate of vehicle, floor, interior exterior panel it is fixed use, vehicle paintwork or The masking of surface treatment uses, delivery when the interior exterior member of product protection, building fix the health protection of use, concrete Use is fixed with the component of, family's electrical article, the billposting of vending machine is used, liquid crystal display (Liquid Crystal Display, LCD) loudspeaker net, bezel, the fixed of decorative panel use, be packed for, tie up use, be fixed temporarily the various use such as use On the way.
[embodiment]
Hereinafter, more specific description is carried out to the present invention using embodiment, but the present invention is not limited to embodiments.Again Person, have " part " in embodiment refers to " parts by weight ", and that have " % " refers to " weight % ".
" embodiment 1 "
Using the polyplant for having blender, thermometer, drop tube, reflux cooler, in a nitrogen environment, reacting Allotment is packed into slot 66 parts of butyl acrylate, 20 parts of 2-EHA, 5.0 parts of methyl acrylate, methacrylic acid The raw material mixing of 3.0 parts of methyl esters, 6.0 parts of acrylic acid, 5 parts of methyl ethyl ketone, 65 parts of ethyl acetate, 0.1 part of benzoyl peroxide The half of object.In addition, in layer is added dropwise charging feedstock mixture remaining half.Then, start the heating of reactive tank.True Recognize after polymerisation starts, spends 1 hour from drop tube and raw mixture is added dropwise.After completion of dropwise addition, so under reflux after Continue polymerisation in solution in 7 hours.After the completion of reaction, it is cooled down, and obtains the acrylic acid series polymeric compounds of nonvolatile component 58.8% Solution.The weight average molecular weight of the acrylic polymer solution of gained is 1,000,000, molecular weight dispersity 3.8.And then phase Adhesion is added for 100 parts of the nonvolatile component of acrylic polymer solution and assigns the resin (group of Huang Chuan chemical companies manufacture Sai Lu (Pencel) D-125) 20.0 parts, as 10.0 parts of 5.0 parts of isopropanol, the ethyl acetate of retarder thinner, as keto-enol Tautomer forms 0.5 part of acetylacetone,2,4-pentanedione, 0.4 part of the praseodynium acid aluminium as chelate type curing agent of compound, Sticker is obtained after being sufficiently stirred.The nonvolatile component of the sticker is 58.5%, viscosity 22000mPas.
" 2~embodiment of embodiment 18 "
Other than it will be changed shown in the raw material of embodiment 1 and blending amount such as table 1 and table 2, similarly to Example 1 It carries out, thus obtains the sticker of 2~embodiment of embodiment 18 respectively.
" comparative example 1 "
Using the polyplant for having blender, thermometer, drop tube, reflux cooler, in a nitrogen environment, reacting Allotment is packed into slot 45 parts of butyl acrylate, 10 parts of 2-EHA, 10 parts of isobutyl acrylate, ethyl acrylate 10 parts, 25 parts of acrylic acid, 20 parts of methyl ethyl ketone, 80 parts of ethyl acetate, 0.1 part of benzoyl peroxide raw mixture one Half.In addition, in layer is added dropwise charging feedstock mixture remaining half.Moreover, starting the heating of reactive tank.It polymerize confirming After reaction starts, spends 1 hour from drop tube and raw mixture is added dropwise.After completion of dropwise addition, and then continue under reflux 7 hours Polymerisation in solution.After the completion of reaction, it is cooled down, and obtains the acrylic polymer solution of nonvolatile component 50%.Gained Acrylic polymer solution weight average molecular weight be 880,000, molecular weight dispersity 9.5.It is poly- relative to acrylic acid series 100 parts of the nonvolatile component of polymer solution is added adhesion and assigns 20.0 parts of resin (Pai Sailu (Pencel) D-125), as dilution 20 parts of 20 parts of methanol, the methyl ethyl ketone of solvent, as ketone-enol tautomers formed compound 0.5 part of acetylacetone,2,4-pentanedione, As 0.4 part of the praseodynium acid aluminium of chelate type curing agent, sticker is obtained after being sufficiently stirred.The sticker is not waved It is 46.1% to send out ingredient, viscosity 8000mPas.
" 2~comparative example of comparative example 6 "
Other than changing the raw material of comparative example 1 and blending amount as shown in table 2, it is carried out similarly with comparative example 1, Thus the sticker of 2~comparative example of comparative example 6 is obtained respectively.
<Nonvolatile component>
Nonvolatile component be according to 150 DEG C in electrical baking oven-drying after twenty minutes before and after weight ratio and find out.
<Viscosity>
Viscosity is that BL type viscosimeters are utilized at 25 DEG C, using #3 rotors, after rotating speed 12rpm backspins turn to start 1 minute The value of measurement.
<Weight average molecular weight>
Weight average molecular weight (Mw) is found out under the following conditions using GPC.
GPC devices:Shimadzu brilliance (SHIMADZU Prominence) model LC-20AD (manufacture of company of Shimadzu Seisakusho Ltd.)
Tubing string:It uses 2 Tosoh (TOSOH) TSK-GEL α-M 7.8*300 (manufacture of Tosoh (TOSOH) company)
Solvent:10mM LiBr (lithium bromide) dimethyl formamide solution
Flow velocity:0.5ml/min
Temperature:40℃
Sample solution concentration:0.2wt%
Sample injection rate:100μl
Detector:Refractive index (Refractive Index) (wavelength 254nm), model RID-10A
<Working life>
After the sticker of gained is taken care of 1 month at 50 DEG C, measures viscosity and calculate viscosity climbing.
Viscosity climbing (%)=(50 DEG C of viscosity after -1 month/viscosity after just allotment) × 100
◎:Viscosity climbing less than 10%.It is outstanding
○:Viscosity climbing is 10% or more and less than 20%.Well
△:Viscosity climbing is 20% or more and less than 30%.It can be practical.
×:Viscosity climbing is 30% or more.It can not be practical.
<Screening characteristics>
To using chipping wheel coater to apply gained in such a way that coating speed 30m/min, dry thickness become 50 μm Sticker and the surface of adhering agent layer that is formed carries out visually observation to evaluate screening characteristics.Evaluation criteria is as follows.
○:It can get the applicator surface of smooth surface.Well.
△:Though applicator surface is unsmooth.But it can be practical.
×:Roll bar line or recess are generated in applicator surface.It can not be practical.
[making of adhesive sheet]
Using chipping wheel coater by the sticker of gained by dry thickness become 50 μm in a manner of be coated on commercially available stripping From on piece, 100 DEG C of dryings in -2 minutes are carried out in electrical baking oven, after removal of solvents by the poly terephthalic acid second of 50 μm of thickness Diester (PET) film fits on adhering agent layer and obtains adhesive sheet.Make its in the constant temperature and humidity room of 23 DEG C of -50%RH environment into Row health on the 7th and after completing hardening, evaluate physical property as shown below.
<Adhesion strength>
The adhesive sheet of gained is cut using the size of width 25mm length 100mm and as sample.Then, 23 DEG C- Under 50%RH environment, JIS Z 0237 are based on, stripping film is removed from sample, the adhering agent layer of exposing is attached at and is ground On stainless steel (SUS) plate of mill, after carrying out 1 round-trip crimping using 2kg rollers, using cupping machine after attaching 24 hours Adhesion strength (N/25mm) is measured under conditions of peeling rate 300mm/min, 180 ° of peel angle.It similarly measures relative to poly- third The adhesion strength of alkene plate.
" relative to SUS plates "
○:Adhesion strength is 20N/25mm or more.Well
△:Adhesion strength is 15N/25mm or more and less than 20N/25mm.It can be practical.
×:Less than 15N/25mm.It can not be practical.
" relative to PP plates "
◎:Adhesion strength is 10N/25mm or more.It is outstanding.
○:Adhesion strength is 5N/25mm or more and less than 10N/25mm.Well
△:Adhesion strength is 3N/25mm or more and less than 5N/25mm.It can be practical.
×:Less than 3N/25mm.It can not be practical.
<Retentivity>
The adhesive sheet of gained is cut using the size of width 25mm length 100mm and as sample.Then, 23 DEG C- Under 50%RH environment, JIS Z 0237 are based on, stripping film are removed from sample, by the front end width of the adhering agent layer of exposing The parts 25mm length 25mm are attached on stainless steel (SUS) plate ground, and 1 round-trip crimping is carried out using 2kg rollers Afterwards, apply the load of 1kg under 80 DEG C of environment, kept for 70,000 seconds.About evaluation, its second is indicated when sample is fallen from SUS plates Number.The mm numbers that the then front end of adhering agent layer and SUS plates is offset downward by load are indicated when sample is not fallen.With shown below Go out evaluation criteria.
◎:The less than 2mm of offset of sample is excellent
○:The offset of sample is 2mm or more and less than 5mm is good
△:The offset of sample is 5mm or more and does not fall no problem in practicality
×:Sample is fallen can not be practical
<Throw anchor>
The adhesion of adhering agent layer and foaming body base material is evaluated as anchor is thrown.With width 25mm length The size of 100mm cuts the adhesive sheet of gained and as sample.Then, it is pasted under 23 DEG C of -50%RH environment, using both sides tape Invest foaming body piece (width 30mm length 130mm thickness 10mm, Yi Nuoke (inoac) company that substrate is done on SUS plates The ECS of manufacture), after carrying out 1 round-trip crimping using 2kg rollers, using cupping machine in peeling rate after attaching 24 hours Adhesion strength (N/25mm) is measured under conditions of 300mm/min, 180 ° of peel angle.
◎:Adhesion strength is 5N/25mm or more.It is outstanding.Base material is broken.
○:Adhesion strength is 2N/25mm or more and less than 5N/25mm.Along with the fracture of base material.Well
△:Adhesion strength is 1N/25mm or more and less than 2N/25mm.It can be practical.
×:Less than 1N/25mm.It can not be practical.
<The transparency>
The visually transparency of the adhering agent layer of the adhesive sheet of evaluation gained.Evaluation criteria described below.
○:Water white transparency.Well.
△:There are slight albefaction, coloring.It can be practical.
×:There are serious albefaction, condensation product.It can not be practical.
Table 1, contracted notation in table 2 meaning be as described below.
BA:Butyl acrylate
2EHA:2-EHA
IBA:Isobutyl acrylate
IBMA:Isobutyl methacrylate
MA:Methyl acrylate
MMA:Methyl methacrylate
EA:Ethyl acrylate
Vac:Vinyl-acetic ester
AA:Acrylic acid
MAA:Methacrylic acid
HEA:Acrylic acid 2- hydroxy methacrylates
4HBA:Acrylic acid 4- hydroxybutyls
MEK:Methyl ethyl ketone
IPA:Isopropanol
Pai Sailu (Pencel) D-125:Huang Chuan chemical companies manufacture the adhesion of rosin system and assign resin
Pai Sailu (Pencel) AZ:Huang Chuan chemical companies manufacture the adhesion of rosin system and assign resin
Super ester (Super Ester) S-100:Huang Chuan chemical companies manufacture the adhesion of rosin system and assign resin
Black Larsen (Ultrathene) 725:Tosoh company manufactures ethylene vinyl acetate
Soviet Union's pa coulomb (Supercron) 930:Nippon Paper company manufactures chlorinated polypropylene weight average molecular weight about 7 Ten thousand, chlorine containing ratio 21%
Soviet Union's pa coulomb (Supercron) 390:Nippon Paper company manufactures chlorinated polypropylene weight average molecular weight about 2 Ten thousand, chlorine containing ratio 36%
Revive pa coulomb (Supercron) 370M:Nippon Paper company manufactures chlorinated polypropylene weight average molecular weight about 10000, chlorine containing ratio 30%
Revive pa coulomb (Supercron) 814B:Nippon Paper company manufactures chlorinated polypropylene weight average molecular weight about 1.5 ten thousand, chlorine containing ratio 41%
PB300:Great Lin (DAELIM) corporation liquid making shape polybutene weight average molecular weight about 300
Super oil (super oil) M32:JX Energeo, Inc manufactures paraffin series lubricating oil weight averaged molecular Amount about 400
Base of a fruit Na technical oil (Diana Process oil) NP-24:Light extraction Xing Chan limited liability companies manufacture naphthene series profit Lubricating oil weight average molecular weight about 300
Aluminium chelate compound A:Chuan Yan fine chemistries company manufactures three (acetopyruvic acid) aluminium
TDI-TMP solution:The trimethylolpropane adduct (nonvolatile component 37.5%) of toluene di-isocyanate(TDI)
According to table 3 and table 4 as a result, the sticker of 1~embodiment of embodiment 18 all has good working life, adhesion With excellent heat resistance.Furthermore heat resistance is according to the result judgement of retentivity.

Claims (7)

1. a kind of sticker, it includes in the presence of chain tra nsfer compound to containing 6 mass of mass %~18 % containing acidity Obtained by the monomer mixture of the 2-EHA of the monomer (a1) of base and 15 weight of weight %~94 % is polymerize Acrylic acid series polymeric compounds (A), chelate type curing agent (B), organic solvent (C) (wherein, except alcohol (D)), alcohol (D) and ketone-alkene Alcohol tautomer forms at least one of compound (E),
The chain tra nsfer compound includes one in the group being made of methyl ethyl ketone, mercaptan and adhesion imparting resin Kind, a concentration of mass of 52 mass %~75 % of nonvolatile component.
2. sticker according to claim 1, wherein the monomer mixture further includes the monomer of hydroxyl.
3. sticker according to claim 1 or 2, further includes polyolefin.
4. sticker according to any one of claim 1 to 3, wherein the weight of the acrylic acid series polymeric compounds (A) is flat Average molecular weight is 300,000~900,000.
5. sticker according to any one of claim 1 to 4, wherein the molecular weight of the acrylic acid series polymeric compounds (A) Dispersion degree is 3~12.
6. sticker according to any one of claim 1 to 5, the wherein viscosity at the 25 of sticker DEG C are 2000mPas~20000mPas.
7. a kind of adhesive sheet comprising:Base material and as the hard of sticker according to any one of claim 1 to 6 The adhering agent layer of compound.
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