CN105324453A - Adhesive tape - Google Patents
Adhesive tape Download PDFInfo
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- CN105324453A CN105324453A CN201480035915.4A CN201480035915A CN105324453A CN 105324453 A CN105324453 A CN 105324453A CN 201480035915 A CN201480035915 A CN 201480035915A CN 105324453 A CN105324453 A CN 105324453A
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- adhesive tape
- radical polymerization
- telluro
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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- 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
- C09J193/00—Adhesives based on natural resins; Adhesives based on derivatives thereof
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- 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
- C09J193/00—Adhesives based on natural resins; Adhesives based on derivatives thereof
- C09J193/04—Rosin
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
The purpose of the present invention is to provide an adhesive tape that is difficult to peel off even when the adhesive tape is thin and is capable of actualizing a high constant load release property on low-polarity adherends such as polypropylene (PP) and the like. The present invention is an adhesive tape having an adhesive layer that contains: a polymer component containing 60 wt% or more of an acrylic polymer containing hydroxyl groups and/or carboxyl groups having a weight-average molecular weight of 300,000-2,000,000 and a molecular weight distribution (Mw/Mn) of 1.05-2.5 obtained by living radical polymerization; a rosin-based tackifier resin having a hydroxyl group and/or carboxyl group or a terpene-based tackifier resin having a hydroxyl group and/or carboxyl group; and a crosslinking agent.
Description
Technical field
The present invention relates to a kind of self adhesive tape, even if it is also not easily peeled off for thin self adhesive tape, and higher permanent load separability can have been given play to low polarity clung bodies such as polypropylene (PP) plates.
Background technology
Self adhesive tape, owing to engaging easily, is thus used to various industrial field.In building field, self adhesive tape is used in laminating of temporary fixed, the in-built material of slaking sheet etc., in automotive field, self adhesive tape be used to sheet material, sensor inside components the exterior member such as fixing, car side ornamental strip, compartment side sunshading plate fixing etc. in, in electric and electronic field, self adhesive tape is used to module assembled, module in laminating of basket etc.
Along with parts in recent years miniaturization, thinning or lighting or the demand of saving resource is increased, expect self adhesive tape thinner than ever.But, for thin self adhesive tape, sufficient bounding force cannot be obtained, there is the problem be easily stripped when applying permanent load.Especially there is following problems: sufficient bounding force cannot be obtained for the low polarity clung body such as polypropylene (PP) resin, cyclic olefin polymerization resin used in the parts of trolley part or electric and electronic, or easily be stripped during applying load.
On the other hand, the polymerization of the free radical polymerization monomer such as vinyl monomer, acrylic monomer is frequently made in the tackiness agent of self adhesive tape and the polymkeric substance that obtains.As the kind of radical polymerization, normally free radical (freeradical) polymerization.But, even if radical polymerization is owing to also generating homopolymer when fully cannot control molecular weight and molecular weight distribution, multipolymer composition etc. and generate low molecular weight compositions or copolymerization, thus have that these compositions cause that the thermotolerance of self adhesive tape reduces, cohesive force reduction etc., or easily make the shortcoming of self adhesive tape stripping etc.
In contrast, as more controlled radical polymerization, have studied living radical (livingradical) polymerization.Active free radical polymerization be polyreaction can not be terminated reaction or the side reaction such as chain transfer reaction hinder and make the polymerization of molecular chain growth, thus easily control molecular weight and molecular weight distribution, multipolymer composition etc., the generation of low molecular weight compositions etc. can be suppressed.
Describe the tackiness agent containing multipolymer in patent documentation 1, described multipolymer is that Organic Tellurium Compounds is used as polymerization starter, by living radical polymerization, monomer copolymerization is obtained, also describes the effect that this adhesive exhibits goes out excellent heat resistance.
But, for the thin self adhesive tape more and more expected in recent years, be difficult to obtain sufficient bounding force, particularly for the sufficient bounding force of the low polarity clung bodies such as polypropylene (PP) plate, thus require further to improve.
Prior art document
Patent documentation
Patent documentation 1: Japanese Patent No. 5256515 publication
Summary of the invention
Invent problem to be solved
The object of the invention is to, a kind of self adhesive tape is provided, even if it is also not easily peeled off for thin self adhesive tape, and higher permanent load separability can have been given play to low polarity clung bodies such as polypropylene (PP) plates.
For the means of dealing with problems
The present invention is a kind of self adhesive tape, it has binder layer, described binder layer contains following composition: component of polymer, its contain more than 60 % by weight obtained by active free radical polymerization, the acrylic acid polymer containing hydroxyl and/or carboxyl of weight-average molecular weight 300,000 ~ 2,000,000, molecular weight distribution (Mw/Mn) 1.05 ~ 2.5; There is the rosin series tackifying resin of hydroxyl and/or carboxyl or there is the terpenic series tackifying resin of hydroxyl and/or carboxyl; And linking agent.
Below describe the present invention in detail.
The discoveries such as the present inventor: by component of polymer, coordinate and there is the rosin series tackifying resin of hydroxyl and/or carboxyl or there is the terpenic series tackifying resin of hydroxyl and/or carboxyl, and linking agent, a kind of self adhesive tape can be obtained, even if it is also not easily peeled off for thin self adhesive tape, and higher permanent load separability can have been given play to low polarity clung bodies such as polypropylene (PP) plates, thus complete the present invention, wherein, above-mentioned component of polymer contains being obtained by active free radical polymerization as main component, weight-average molecular weight 300,000 ~ 2,000,000, the acrylic acid polymer with hydroxyl and/or carboxyl of molecular weight distribution (Mw/Mn) 1.05 ~ 2.5.
Self adhesive tape of the present invention, it has binder layer, described binder layer contains following composition: component of polymer, its contain more than 60 % by weight obtained by active free radical polymerization, the acrylic acid polymer (hereinafter also referred to as " active free radical polymerization acrylic acid polymer ") with hydroxyl and/or carboxyl of weight-average molecular weight 300,000 ~ 2,000,000, molecular weight distribution (Mw/Mn) 1.05 ~ 2.5; The rosin series tackifying resin with hydroxyl and/or carboxyl or the terpenic series tackifying resin with hydroxyl and/or carboxyl are (hereinafter also referred to as " rosin series tackifying resin ", " terpenic series tackifying resin ".); And linking agent.
Above-mentioned active free radical polymerization acrylic acid polymer, above-mentioned rosin series tackifying resin or terpenic series tackifying resin and linking agent is contained by above-mentioned binder layer, even if self adhesive tape of the present invention is also not easily peeled off for thin self adhesive tape, and higher permanent load separability can be given play to low polarity clung bodies such as polypropylene (PP) plates.
Above-mentioned active free radical polymerization acrylic acid polymer is using acrylic monomers such as (methyl) acrylate, (methyl) vinylformic acid as raw material, by active free radical polymerization, the active free radical polymerization preferably employing organic tellurium polymerization starter and the acrylic acid polymer obtained.
Active free radical polymerization for polyreaction can not be terminated reaction or the side reaction such as chain transfer reaction hinder and make the polymerization of molecular chain growth.According to active free radical polymerization, such as can obtain have than radical polymerization etc. evenly molecular weight and the polymkeric substance of composition, the generation of low molecular weight compositions etc. can be suppressed, thus self adhesive tape is not easily peeled off, and is improved to the permanent load separability of the low polarity clung bodies such as polypropylene (PP) plate.
Fig. 1 represents the schematic diagram that active free radical polymerization is described.Active free radical polymerization be polyreaction can not be terminated reaction or the side reaction such as chain transfer reaction hinder and make the polymerization of molecular chain growth.In active free radical polymerization, can not inactivation and when also can not produce new free radical kind in the reaction at growth end free base, react.In this reaction way, all polymer chains carry out reaction while be polymerized with monomer equably, and the composition of all polymkeric substance is close to even.Therefore, the monomer 12 containing hydroxyl and/or carboxyl is comprised in all polymkeric substance of active free radical polymerization acrylic polymers 1.If by such active free radical polymerization acrylic acid polymer 1 with there is the rosin series tackifying resin of hydroxyl and/or carboxyl or there is the terpenic series tackifying resin of hydroxyl and/or carboxyl and linking agent combines, then all polymkeric substance can participate in being cross-linked of crosslinked and polymer chain between polymer chain and tackifying resin.Even if therefore, it is possible to obtaining is that thin self adhesive tape is also not easily peeled off and can give play to the self adhesive tape of higher permanent load separability to low polarity clung bodies such as polypropylene (PP) plates.
Effect of the present invention uses the acrylic acid polymer obtained by radical polymerization in the past to obtain.
Fig. 2 represents the schematic diagram that radical polymerization is described.In radical polymerization, produce free radical kind continuously in reaction and add and be formed in monomer, be polymerized.Therefore, in radical polymerization, the polymkeric substance 23 that generation grows end free base inactivation in the reaction and the polymkeric substance 24 utilizing the free radical kind of new generation in reaction and grow.Therefore, if utilize radical polymerization manufacture to contain the acrylic acid polymer of hydroxyl and/or carboxyl, then generate the polymkeric substance containing the monomer of hydroxyl and/or carboxyl not comprising lower molecular weight.Even if make such radical polymerization acrylic acid polymer 2 and have the rosin series tackifying resin of hydroxyl and/or carboxyl or have terpenic series tackifying resin and the crosslinker combination of hydroxyl and/or carboxyl, the polymkeric substance not comprising the monomer containing hydroxyl and/or carboxyl also cannot participate in being cross-linked of crosslinked and polymer chain between polymer chain and tackifying resin.Fit to clung body as thin self adhesive tape and applying load time, from not comprising of cannot participating in being cross-linked, the polymer sites of monomer containing hydroxyl and/or carboxyl is peeled off, and thus cannot give play to the permanent load separability to low polarity clung bodies such as polypropylene (PP) plates.
In the middle of active free radical polymerization; the active free radical polymerization employing organic tellurium polymerization starter is different from other active free radical polymerizations; when all not protected for the free radical polymerization monomer with hydroxyl or the such polar functional group of carboxyl, identical initiator is utilized to carry out being polymerized and the polymkeric substance with uniform molecular weight and composition can being obtained.Therefore, it is possible to make the free radical polymerization monomer easily copolymerization with polar functional group.
As long as above-mentioned organic tellurium polymerization starter is normally used for the initiator of active free radical polymerization, be just not particularly limited, can list such as, Organic Tellurium Compounds, organic tellurium compound compound (You Machine テ Le リ De compound) etc.
As above-mentioned Organic Tellurium Compounds, can list such as, (methyl hydrogen telluro (tellanyl)-methyl) benzene, (1-methyl hydrogen telluro-ethyl) benzene, (2-methyl hydrogen telluro-propyl group) benzene, the chloro-4-of 1-(methyl hydrogen telluro-methyl) benzene, 1-hydroxyl-4-(methyl hydrogen telluro-methyl) benzene, 1-methoxyl group-4-(methyl hydrogen telluro-methyl) benzene, 1-amino-4-(methyl hydrogen telluro-methyl) benzene, 1-nitro-4-(methyl hydrogen telluro-methyl) benzene, 1-cyano group-4-(methyl hydrogen telluro-methyl) benzene, 1-methyl carbonyl-4-(methyl hydrogen telluro-methyl) benzene, 1-phenylcarbonyl group-4-(methyl hydrogen telluro-methyl) benzene, 1-methoxycarbonyl-4-(methyl hydrogen telluro-methyl) benzene, 1-phenyloxycarbonyl-4-(methyl hydrogen telluro-methyl) benzene, 1-alkylsulfonyl-4-(methyl hydrogen telluro-methyl) benzene, 1-trifluoromethyl-4-(methyl hydrogen telluro-methyl) benzene, the chloro-4-of 1-(1-methyl hydrogen telluro-ethyl) benzene, 1-hydroxyl-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-methoxyl group-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-amino-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-nitro-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-cyano group-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-methyl carbonyl-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-phenylcarbonyl group-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-methoxycarbonyl-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-phenyloxycarbonyl-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-alkylsulfonyl-4-(1-methyl hydrogen telluro-ethyl) benzene, 1-trifluoromethyl-4-(1-methyl hydrogen telluro-ethyl) benzene, the chloro-4-of 1-(2-methyl hydrogen telluro-propyl group) benzene, 1-hydroxyl-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-methoxyl group-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-amino-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-nitro-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-cyano group-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-methyl carbonyl-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-phenylcarbonyl group-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-methoxycarbonyl-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-phenyloxycarbonyl-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-alkylsulfonyl-4-(2-methyl hydrogen telluro-propyl group) benzene, 1-trifluoromethyl-4-(2-methyl hydrogen telluro-propyl group) benzene, 2-(methyl hydrogen telluro-methyl) pyridine, 2-(1-methyl hydrogen telluro-ethyl) pyridine, 2-(2-methyl hydrogen telluro-propyl group) pyridine, 2-methyl hydrogen telluro-ethanetricarboxylic acid methyl esters, 2-methyl hydrogen telluro-methyl propionate, 2-methyl hydrogen telluro-2 Methylpropionic acid methyl esters, 2-methyl hydrogen telluro-ethanetricarboxylic acid ethyl ester, 2-methyl hydrogen telluro-ethyl propionate, 2-methyl hydrogen telluro-2 Methylpropionic acid ethyl ester, 2-methyl hydrogen telluro acetonitrile, 2-methyl hydrogen telluro propionitrile, 2-methyl-2-methyl hydrogen telluro propionitrile etc.Methyl hydrogen telluro in these Organic Tellurium Compounds can be ethyl hydrogen telluro, n-propyl hydrogen telluro, sec.-propyl hydrogen telluro, normal-butyl hydrogen telluro, isobutyl-hydrogen telluro, tertiary butyl hydrogen telluro, phenyl hydrogen telluro etc., in addition, these Organic Tellurium Compounds can be used alone, and also two or more kinds may be used.
As above-mentioned organic tellurium compound compound, can list such as, dimethyl two telluride, diethyl two telluride, diη-propyl two telluride, di-isopropyl two telluride, Bicyclopropyl two telluride, di-n-butyl two telluride, di-sec-butyl two telluride, di-t-butyl two telluride, two cyclobutyl two tellurides, phenylbenzene two telluride, two (p-methoxyphenyl) two telluride, two (p-aminophenyl) two telluride, two (p-nitrophenyl) two telluride, two (to cyano-phenyl) two telluride, two (to sulfonvlphenyl) two telluride, dinaphthyl two telluride, bipyridyl two telluride etc.These organic tellurium compound compounds can be used alone, and also two or more kinds may be used.Especially, preferred dimethyl two telluride, diethyl two telluride, diη-propyl two telluride, di-n-butyl two telluride, phenylbenzene two telluride.
It should be noted that, in the scope not damaging effect of the present invention, except above-mentioned organic tellurium polymerization starter, can also to promote the azo-compound being used as polymerization starter for the purpose of polymerization velocity.
As long as above-mentioned azo-compound is normally used for the azo-compound of radical polymerization, be just not particularly limited, can list such as, 2,2 '-azo two (isopropyl cyanide), 2,2 '-azo two (2-methylbutyronitrile), 2,2 '-azo two (2,4-methyl pentane nitrile), 2,2 '-azo two (4-methoxyl group-2,4-methyl pentane nitrile), 1,1-azo two (hexanaphthene-1-nitrile), 1-[(1-cyano group-1-methylethyl) azo] methane amide, 4,4 '-azo two (4-cyanopentanoic acid), dimethyl-2,2 '-azo two (2-methacrylic ester), dimethyl-1,1 '-azo two (1-cyclohexane carboxylate), 2,2 '-azo two { 2-methyl-N-[1,1 '-bis-(methylol)-2-hydroxyethyl] propionic acid amide }, 2,2 '-azo two [2-methyl-N-(2-hydroxyethyl) propionic acid amide], 2,2 '-azo two [N-(2-propenyl)-2-methyl propanamide], 2,2 '-azo two (N-butyl-2-methyl propanamide), 2,2 '-azo two (N-cyclohexyl-2-methyl propanamide), 2, two [2-(2-tetrahydroglyoxaline-2-base) propane] dihydrochloride of 2 '-azo, 2, two { 2-[1-(2-the hydroxyethyl)-2-tetrahydroglyoxaline-2-base] propane } dihydrochloride of 2 '-azo, 2,2 '-azo two [2-(2-tetrahydroglyoxaline-2-base) propane], 2, two (2-amidine propane) dihydrochloride of 2 '-azo, 2, two [N-(2-the propyloic)-2-methyl-prop amidine] tetrahydrate of 2 '-azo, 2, two (1-imino--1-tetramethyleneimine-2-methylpropane) dihydrochloride of 2 '-azo, 2,2 '-azo two (2,4,4-trimethylpentane) etc.These azo-compounds can be used alone, and also two or more kinds may be used.
Above-mentioned active free radical polymerization acrylic acid polymer is the material containing hydroxyl and/or carboxyl, thus as the acrylic monomer be polymerized in above-mentioned active free radical polymerization, coordinates the acrylic monomer with hydroxyl and/or carboxyl.
As the above-mentioned acrylic monomer with hydroxyl, can list such as, (methyl) vinylformic acid 4-hydroxy butyl ester, (methyl) vinylformic acid 2-hydroxyl ethyl ester etc. have (methyl) acrylate of hydroxyl.
As the above-mentioned acrylic monomer with carboxyl, (methyl) vinylformic acid can be listed such as.Especially preferably vinylformic acid.
When use above-mentioned there is (methyl) acrylate of hydroxyl, its content is not particularly limited, and in the middle of the free radical polymerization monomer be polymerized in above-mentioned active free radical polymerization, preferred upper limit is 30 % by weight.If above-mentioned content is more than 30 % by weight, then the gel fraction of above-mentioned binder layer becomes too high, and self adhesive tape is easily stripped, and there is situation about reducing the permanent load separability of clung body.
When use above-mentioned there is the acrylic monomer of carboxyl, its content is not particularly limited, and in the middle of the free radical polymerization monomer be polymerized in above-mentioned active free radical polymerization, preferred lower limit is 0.1 % by weight, preferred upper limit is 10 % by weight.If above-mentioned containing quantity not sufficient 0.1 % by weight, then above-mentioned binder layer becomes too soft, there is the situation that thermotolerance reduces.If above-mentioned content is more than 10 % by weight, then above-mentioned binder layer becomes really up to the mark, there is the situation that self adhesive tape is easily stripped.
The acrylic monomer be polymerized in above-mentioned active free radical polymerization can use other free radical polymerization monomers except the acrylic monomer except having hydroxyl and/or carboxyl.As other free radical polymerization monomer above-mentioned, such as other (methyl) acrylate can be listed.In addition, the acrylic monomer with other polar functional groups such as amino, amide group and itrile groups can also be used.And then except aforesaid propylene acid be except monomer, vinyl compound can also be used as monomer.
Other (methyl) acrylate above-mentioned is not particularly limited, and can list (methyl) alkyl acrylates such as (methyl) methyl acrylate, (methyl) ethyl propenoate, (methyl) propyl acrylate, (methyl) n-butyl acrylate, (methyl) tert-butyl acrylate, (methyl) 2-EHA, (methyl) n-octyl, (methyl) Isooctyl acrylate monomer, (methyl) vinylformic acid ester in the different ninth of the ten Heavenly Stems, the different myristin of (methyl) vinylformic acid, (methyl) stearyl acrylate ester; (methyl) cyclohexyl acrylate, (methyl) isobornyl acrylate, (methyl) benzyl acrylate, (methyl) vinylformic acid 2-butoxyethyl, (methyl) vinylformic acid 2-phenoxy ethyl, (methyl) glycidyl acrylate, (methyl) tetrahydrofurfuryl acrylate, polypropylene glycol list (methyl) acrylate etc.These (methyl) acrylate can be used alone, and also two or more kinds may be used.
Above-mentioned vinyl compound is not particularly limited; can list such as; N; N-DMAA, N, N-acrylamide, NIPA, N-hydroxyethyl acrylamide, acrylamide etc. (methyl) acrylamide compound, NVP, N-caprolactam, N-vinyl acetamide, N-acryloyl morpholine, vinyl cyanide, vinylbenzene, vinyl acetate etc.These vinyl compounds can be used alone, and also two or more kinds may be used.
In above-mentioned active free radical polymerization, dispersion stabilizer can be used.As above-mentioned dispersion stabilizer, can list such as, Polyvinylpyrolidone (PVP), polyvinyl alcohol, methylcellulose gum, ethyl cellulose, poly-(methyl) vinylformic acid, poly-(methyl) acrylate, polyoxyethylene glycol etc.
As the method for above-mentioned active free radical polymerization, known method can be used, can list such as, solution polymerization (boiling point polymerization or constant temperature polymerization), letex polymerization, suspension polymerization, mass polymerization etc.
When using polymerization solvent in above-mentioned active free radical polymerization, this polymerization solvent is not particularly limited, can use such as, nonpolar solvent, Yi Jishui, methyl alcohol, ethanol, propyl alcohol, butanols, acetone, methylethylketone, methyl iso-butyl ketone (MIBK), tetrahydrofuran (THF), diox, the contour polarity solvents of DMF such as hexane, hexanaphthene, octane, toluene, dimethylbenzene.These polymerization solvents can be used alone, and also two or more kinds may be used.
In addition, from the view point of polymerization velocity, polymerization temperature is preferably 0 ~ 110 DEG C.
Above-mentioned active free radical polymerization acrylic acid polymer, the lower limit of its weight-average molecular weight (Mw) is 300,000, the upper limit is 2,000,000.If above-mentioned Weight-average molecular quantity not sufficient 300,000, then above-mentioned binder layer becomes too soft, and thermotolerance reduces.If above-mentioned weight-average molecular weight is more than 2,000,000, then viscosity when being coated with is too high, is difficult to coating, sometimes produces the uneven thickness of above-mentioned binder layer.The preferred lower limit of the weight-average molecular weight (Mw) of above-mentioned active free radical polymerization acrylic acid polymer is 400,000, preferred upper limit is 1,300,000.
The molecular weight distribution (Mw/Mn) of above-mentioned active free radical polymerization acrylic acid polymer is 1.05 ~ 2.5.If above-mentioned molecular weight distribution is more than 2.5, then the increases such as the low molecular weight compositions generated in above-mentioned active free radical polymerization, thus self adhesive tape is easily stripped, and reduces the permanent load separability of clung body.The preferred upper limit of above-mentioned molecular weight distribution is 2.0, more preferably the upper limit be 1.8, further preferred upper limit be 1.7.
It should be noted that, molecular weight distribution (Mw/Mn) refers to the ratio of weight-average molecular weight (Mw) and number-average molecular weight (Mn).
Weight-average molecular weight (Mw) and number-average molecular weight (Mn) measure as described below, that is, by gel permeation chromatography (GPC) method, measure with the form of polystyrene conversion molecular weight.Specifically, weight-average molecular weight (Mw) and number-average molecular weight (Mn) measure as described below, namely, tetrahydrofuran (THF) (THF) is utilized by active free radical polymerization acrylic acid polymer to dilute 50 times and the diluent obtained, strainer is utilized to filter, use the filtrate of gained, measured with the form of polystyrene conversion molecular weight by GPC method.In GPC method, such as 2690SeparationsModel (Waters Inc.) etc. can be used.
Above-mentioned component of polymer can containing the polymkeric substance beyond above-mentioned active free radical polymerization acrylic acid polymer, the polymkeric substance etc. that such as obtained by radical polymerization.
Wherein, the lower limit of the content of the above-mentioned active free radical polymerization acrylic acid polymer in above-mentioned component of polymer is 60 % by weight, the total amount (100 % by weight) of component of polymer is preferably above-mentioned active free radical polymerization acrylic acid polymer.By making the content of the above-mentioned active free radical polymerization acrylic acid polymer in component of polymer be more than 60 % by weight, thinly also not easily peeling off even if can obtain and the self adhesive tape of higher permanent load separability can have been given play to low polarity clung bodies such as polypropylene (PP) plates.
It should be noted that, above-mentioned rosin series tackifying resin or terpenic series tackifying resin are not comprised in component of polymer.
Above-mentioned rosin series tackifying resin or terpenic series tackifying resin contain hydroxyl and/or carboxyl.
When both above-mentioned active free radical polymerization acrylic polymers and tackifying resin have hydroxyl, by using such as, isocyanate-based linking agent is as linking agent, thus above-mentioned active free radical polymerization acrylic acid polymer and tackifying resin are undertaken reacting by linking agent and be cross-linked.In addition, when both above-mentioned active free radical polymerization acrylic polymers and tackifying resin have carboxyl, by using such as epoxy linking agent or aziridine system linking agent as linking agent, thus both above-mentioned active free radical polymerization acrylic acid polymer and tackifying resin are undertaken reacting by linking agent and are cross-linked.With regard to active free radical polymerization acrylic polymers, the composition of contained whole polymkeric substance is even, and has hydroxyl and/or carboxyl, and therefore, whole polymkeric substance can participate in being cross-linked of crosslinked or polymer chain between polymer chain and tackifying resin.Even if therefore, it is possible to obtaining is that thin self adhesive tape is also not easily peeled off and can give play to the self adhesive tape of higher permanent load separability to low polarity clung bodies such as polypropylene (PP) plates.
Owing to easily controlling gel fraction and bond properties, particularly preferably all there is hydroxyl both above-mentioned active free radical polymerization acrylic acid polymer and tackifying resin and use isocyanate-based linking agent as the combination of linking agent.
With regard to above-mentioned rosin series tackifying resin or terpenic series tackifying resin, the preferred lower limit of its hydroxyl value is 25, preferred upper limit is 55.If above-mentioned hydroxyl value departs from above-mentioned scope, then there is the situation that the permanent load separability of self adhesive tape to low polarity clung bodies such as polypropylene (PP) plates reduces.More preferably the lower limit of above-mentioned hydroxyl value is 30, more preferably the upper limit be 50.
It should be noted that, hydroxyl value can pass through JISK1557 (Tetra hydro Phthalic anhydride method) and measure.
With regard to above-mentioned rosin series tackifying resin or terpenic series tackifying resin, the preferred lower limit of softening temperature is 70 DEG C, preferred upper limit is 170 DEG C.If above-mentioned softening temperature is less than 70 DEG C, then there is above-mentioned rosin series tackifying resin or terpenic series tackifying resin and become too soft and the permanent load separability of the low polarity clung bodies such as polypropylene (PP) plate is reduced situation.If above-mentioned softening temperature is more than 170 DEG C, then there is above-mentioned binder layer and become really up to the mark, self adhesive tape is easily stripped, to the situation that the permanent load separability of the low polarity clung bodies such as polypropylene (PP) plate reduces.More preferably the lower limit of above-mentioned softening temperature is 120 DEG C.
It should be noted that, softening temperature refers to, the softening temperature measured by JISK2207 ring and ball method.
Above-mentioned rosin series tackifying resin or terpenic series tackifying resin are not particularly limited, and can list rosin ester system resin, terpene phenol resin etc., preferred rosin ester system resin.
Above-mentioned rosin ester system resin refers to, using sylvic acid as the Gum Rosin of main component, nilox resin resin and hydrogenated rosin resin, utilizes alcohol to make the dipolymer of the resinous acids such as sylvic acid (polymeric rosin resin) etc. carry out esterification and the resin obtained.Be not used to esterification by a part for the hydroxyl being used in the alcohol in esterification and be comprised in resin, thus hydroxyl value can be made to be adjusted to above-mentioned scope.As alcohol, the polyvalent alcohols such as ethylene glycol, glycerol, tetramethylolmethane can be listed.
It should be noted that, Gum Rosin being carried out the resin after esterification is rosin ester resin, disproportionation resin is carried out the resin after esterification and is nilox resin ester resin, hydrogenated rosin resin is carried out the resin after esterification is hydrogenated rosin ester resin, polymeric rosin resin to be carried out the resin after esterification be polymeric rosin ester resin.
Above-mentioned terpene phenol resin refers to, makes terpenes carry out being polymerized and the resin obtained under the existence of phenol.
As above-mentioned nilox resin ester resin, can list such as, Huang Chuan chemical industrial company SUPERESTERA75 (hydroxyl value 23, softening temperature 75 DEG C), Huang Chuan chemical industrial company SUPERESTERA100 (hydroxyl value 16, softening temperature 100 DEG C), Huang Chuan chemical industrial company SUPERESTERA115 (hydroxyl value 19, softening temperature 115 DEG C), Huang Chuan chemical industrial company SUPERESTERA125 (hydroxyl value 15, softening temperature 125 DEG C) etc.As above-mentioned hydrogenated rosin ester resin, can list such as, Huang Chuan chemical industrial company PineCrystalKE-359 (hydroxyl value 42, acid number 12, softening temperature 100 DEG C), Huang Chuan chemical industrial company EsterGumH (hydroxyl value 29, softening temperature 70 DEG C) etc.As above-mentioned polymeric rosin ester resin, can list such as, Huang Chuan chemical industrial company PenselD135 (hydroxyl value 45, acid number 13, softening temperature 135 DEG C), Huang Chuan chemical industrial company PenselD125 (hydroxyl value 34, acid number 13, softening temperature 125 DEG C), Huang Chuan chemical industrial company PenselD160 (hydroxyl value 42, acid number 13, softening temperature 160 DEG C) etc.
As above-mentioned terpenic series tackifying resin, can list such as, YasuharaChemicalCo., Ltd. YSPolystarG150 processed (softening temperature 150 DEG C), YasuharaChemicalCo., Ltd. YSPolystarT100 processed (softening temperature 100 DEG C), YasuharaChemicalCo., Ltd. YSPolystarG125 processed (softening temperature 125 DEG C), YasuharaChemicalCo., Ltd. YSPolystarT115 processed (softening temperature 115 DEG C), YasuharaChemicalCo., Ltd. YSPolystarT130 processed (softening temperature 130 DEG C), YasuharaChemicalCo., Ltd. PolystarU115 processed (softening temperature 115 DEG C), YasuharaChemicalCo., Ltd. PolystarUH115 processed (softening temperature 115 DEG C), YasuharaChemicalCo., Ltd. YSResinPX1250 processed (softening temperature 125 DEG C) etc.
These rosin series tackifying resins or terpenic series tackifying resin can be used alone, and also two or more kinds may be used.
With regard to the content of above-mentioned rosin series tackifying resin or terpenic series tackifying resin, relative to the preferred lower limit of above-mentioned active free radical polymerization acrylic acid polymer 100 weight part be 5 weight parts, preferred upper limit is 40 weight parts.If above-mentioned, containing quantity not sufficient 5 weight part, then self adhesive tape is easily stripped, and there is situation about reducing the permanent load separability of the low polarity clung bodies such as polypropylene (PP) plate.Even if above-mentioned content is more than 40 weight parts, causes above-mentioned binder layer to become really up to the mark due to the rising of second-order transition temperature (Tg), there is the situation that self adhesive tape is easily peeled off.
Above-mentioned linking agent is not particularly limited, and according to the combination of above-mentioned active free radical polymerization acrylic acid polymer and rosin series tackifying resin or terpenic series tackifying resin, suitably selecting can by they crosslinked linking agent.
With regard to above-mentioned linking agent, can list such as, isocyanate-based linking agent, aziridine system linking agent, epoxy linking agent, metallo-chelate type linking agent etc.Especially, due to the closely sealed excellent in stability to base material, thus preferred isocyanate system linking agent.
As above-mentioned isocyanate-based linking agent, can list such as, CORONATEHX (NipponPolyurethaneIndustryCo.Ltd. system), CORONATEL (NipponPolyurethaneIndustryCo.Ltd. system), MITECNY260A (Mitsubishi Chemical Ind's system) etc.
Relative to above-mentioned active free radical polymerization acrylic acid polymer 100 weight part, the use level of above-mentioned linking agent is preferably 0.01 ~ 5 weight part, is more preferably 0.1 ~ 3 weight part.
By suitably regulating kind or the amount of above-mentioned linking agent, the gel fraction of above-mentioned binder layer can be regulated.
Above-mentioned binder layer can contain additives such as softening agent, emulsifying agent, tenderizer, weighting agent, pigment, dyestuff, silane coupling agent, antioxidant etc. and other resins etc. as required.
The preferred gel fraction of above-mentioned binder layer is less than 70 % by weight.If above-mentioned gel fraction is more than 70 % by weight, then the cross-linking density of above-mentioned binder layer becomes too high, and self adhesive tape is easily stripped, and there is situation about reducing the permanent load separability of the low polarity clung bodies such as polypropylene (PP) plate.Above-mentioned gel fraction is more preferably less than 60 % by weight.
The lower limit of the gel fraction of above-mentioned binder layer is not particularly limited, and from viewpoints such as thermotolerances, is preferably more than 1 % by weight, is more preferably more than 10 % by weight.
It should be noted that, measure gel fraction as described below.First, self adhesive tape is cut into the flat rectangular of 50mm × 100mm, makes test film, after test film is flooded 24 hours in vinyl acetic monomer at 23 DEG C, take out from vinyl acetic monomer, under the condition of 110 DEG C, make its dry 1 hour.Measure the weight of dried test film, use following formula (1) to calculate gel fraction.It should be noted that, in test film, the not stacked mold release film for the protection of binder layer.
Gel fraction (% by weight)=100 × (W2-W0)/(W1-W0) (1)
(W0: the weight of base material, W1: the weight of the test film before dipping, W2: the weight of dipping, dried test film)
Even if self adhesive tape of the present invention for thin self adhesive tape be also difficult to peel off, thus according to purposes can by above-mentioned binder layer and base material described later thinning.
The thickness of above-mentioned binder layer can set according to purposes, is not particularly limited, and preferred lower limit is 1 μm, the preferred upper limit is 100 μm.If above-mentioned thickness is less than 1 μm, then self adhesive tape is easily stripped, and there is situation about reducing the permanent load separability of the low polarity clung bodies such as polypropylene (PP) plate.If above-mentioned thickness is more than 100 μm, then there is the situation that cannot obtain thin self adhesive tape.The preferred lower limit of above-mentioned thickness is 15 μm, the preferred upper limit is 75 μm.
Self adhesive tape of the present invention can, for having the support type of base material, also can be the non-supporting type without base material.When supporting type, above-mentioned binder layer can be formed with in of a base material face, also can be formed with above-mentioned binder layer in two faces.
Above-mentioned base material is not particularly limited, and can list resin molding, foamed resin, paper, non-woven fabrics, gauze (yamcloth) etc.
As above-mentioned resin molding, can list such as, the modified olefin resin films such as polyester based resin film, ethylene-vinyl acetate copolymer, the ethylene-acrylate copolymers such as the polyolefin-based resins such as polyethylene film, polypropylene screen film, PET film, polyvinyl chloride resin film, polyurethane series resin film, cyclic olefin polymer resin molding etc.
As above-mentioned foamed resin, can list such as, polyethylene, polypropylene foam, acrylic foams, polyurethane foam, ethylene propylene rubber foam etc.
As above-mentioned gauze, can list such as, to the cloth that polyethylene flat filament weaves; With the cloth etc. at its surface laminated resin molding.
When the double-sided belt particularly used in the assembling of display apparatus module, also can use for preventing the base material through black printing of light transmission, for improving light reflective through the base material of white printing, the film base material etc. through metal evaporation.
The thickness of above-mentioned base material can set according to purposes, is not particularly limited, such as, be preferably 1 ~ 100 μm when film base material, be more preferably 5 ~ 75 μm.If the thickness of above-mentioned base material is less than 1 μm, then the situation that the physical strength that there is self adhesive tape reduces.If the thickness of above-mentioned base material is more than 100 μm, then the viscosity of self adhesive tape become too strong, and there is the shape that is difficult to along clung body and makes it closely sealed and the situation of laminating.
The manufacture method of self adhesive tape of the present invention is not particularly limited, such as following methods can be listed: by above-mentioned active free radical polymerization acrylic acid polymer and above-mentioned rosin series tackifying resin or terpenic series tackifying resin, be mixed together with above-mentioned linking agent etc. and other gradation compositions as required, stir, prepare binder solution, then, this binder solution is applied to the PET film after demoulding process, make it dry, form binder layer, the binder layer of gained is transferred to a face of base material or the method on two sides; And, be coated directly onto the method etc. that base material makes its drying.Binder solution can also be applied to the PET film after demoulding process, make it dry, the binder layer formed thus is not directly used base material as the self adhesive tape of non-supporting type.
The purposes of self adhesive tape of the present invention is not particularly limited, be preferred for the assembling of the e-machine (such as, portable phone, portable information terminal etc.) having carried image display device or input unit, trolley part assembling fixing etc.More particularly, preference such as the low polarity clung bodies such as the cyclic olefin polymerization resin used in middle polypropylene (PP) resin, the display apparatus modules etc. used such as the parts to trolley part or electric and electronic are fitted.
Invention effect
According to the present invention, a kind of self adhesive tape can be provided, even if it is also not easily peeled off for thin self adhesive tape, and higher permanent load separability can have been given play to low polarity clung bodies such as polypropylene (PP) plates.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that active free radical polymerization is described.
Fig. 2 is the schematic diagram that radical polymerization is described.
Embodiment
Embodiment is below shown, and the present invention will be described in more detail, but the present invention is not limited to these embodiments.
(radical polymerization polymkeric substance)
(synthesis 1)
(synthesis 1-1)
Make Tellurium (40 meshes, metallic tellurium, AldrichCorporation system) 6.38g (50mmol) be suspended in tetrahydrofuran (THF) (THF) 50mL, at room temperature slowly drip n-Butyl Lithium/hexane solution (AldrichCorporation system) 34.4mL (55mmol) of 1.6mol/L wherein.This reaction soln is stirred, until metallic tellurium completely dissolve.At room temperature in this reaction soln, add 2-isobutyl ethyl bromide 10.7g (55mmol), stir 2 hours.After reaction terminates, under reduced pressure solvent is concentrated, then carry out underpressure distillation, obtain the 2-methyl-2-E butyl hydrogen telluro-ethyl propionate of yellow oil.
(synthesis 1-2)
In the glove box after argon replaces, 2-methyl-2-normal-butyl hydrogen telluro-ethyl propionate 38 μ L, the V-60 (2 manufactured in synthesis 1-1 is dropped in reaction vessel, 2 '-azobis isobutyronitrile and light pure pharmaceutical worker's industry Inc.) 2.8mg, vinyl acetic monomer 1mL, then, closed reaction vessel, takes out reaction vessel from glove box.Then, while flow into argon gas in reaction vessel, the total 100g of the monomer (BA: butyl acrylate, Aac: vinylformic acid, HEA: vinylformic acid 2-hydroxyl ethyl ester) in reaction vessel shown in input table 1, the vinyl acetic monomer 66.5g as polymerization solvent, at 60 DEG C, carry out 20 hours polyreactions, obtain the solution containing active free radical polymerization acrylic acid polymer.
Utilize tetrahydrofuran (THF) (THF) that the active free radical polymerization acrylic acid polymer of gained is diluted 50 times, strainer (material: tetrafluoroethylene, aperture: 0.2 μm) is utilized by thus obtained diluent to filter, gained filtrate is supplied to gel permeation chromatography (Waters Inc., 2690SeparationsModel), GPC mensuration is carried out under the condition of sample flow 1 milliliter/min, column temperature 40 DEG C, measure the polystyrene conversion molecular weight of polymkeric substance, obtain weight-average molecular weight (Mw) and molecular weight distribution (Mw/Mn).As post, use GPCKF-806L (Showa electrician Inc.), use differential refractometer as detector.
(synthesis 2)
Except changing the 2-methyl-2-normal-butyl hydrogen telluro-ethyl propionate manufactured in synthesis 1-1 into 58 μ L, by V-60 (2,2 '-azobis isobutyronitrile and light pure pharmaceutical worker's industry Inc.) change into beyond 4.2mg, in the same manner as synthesis 1-2, obtain the solution containing active free radical polymerization acrylic acid polymer, obtain weight-average molecular weight (Mw) and molecular weight distribution (Mw/Mn).
(synthesis 3)
Except changing the 2-methyl-2-normal-butyl hydrogen telluro-ethyl propionate manufactured in synthesis 1-1 into 17 μ L, by V-60 (2,2 '-azobis isobutyronitrile and light pure pharmaceutical worker's industry Inc.) change into beyond 1.2mg, in the same manner as synthesis 1-2, obtain the solution containing active free radical polymerization acrylic acid polymer, obtain weight-average molecular weight (Mw) and molecular weight distribution (Mw/Mn).
(synthesis 4)
Except changing the 2-methyl-2-normal-butyl hydrogen telluro-ethyl propionate manufactured in synthesis 1-1 into 230 μ L, V-60 (2,2 '-azobis isobutyronitrile and light pure pharmaceutical worker's industry Inc.) change into beyond 17mg, in the same manner as synthesis 1-2, obtain the solution containing active free radical polymerization acrylic acid polymer, obtain weight-average molecular weight (Mw) and molecular weight distribution (Mw/Mn).
(synthesis 5)
Add in reaction vessel as polymerization solvent vinyl acetic monomer 50g, after nitrogen bubble, inflow nitrogen while reacting by heating container and start backflow.Then, polymerization starter solution is dropped in reaction vessel, this polymerization starter solution utilizes vinyl acetic monomer using the V-60 (2 as polymerization starter, 2 '-azobis isobutyronitrile and light pure pharmaceutical worker's industry Inc.) 0.15g dilutes 10 times, drips with 2 hours the total 100g adding the monomer shown in table 1.After dropping terminates, polymerization starter solution is again dropped in reaction vessel, described polymerization starter solution utilizes vinyl acetic monomer using the V-60 (2 as polymerization starter, 2 '-azobis isobutyronitrile and light pure pharmaceutical worker's industry Inc.) 0.15g dilutes 10 times, and carry out 4 hours polyreactions, obtain the solution containing radical polymerization polymkeric substance.
[table 1]
(tackifying resin)
Use the tackifying resin shown in table 2.
[table 2]
(embodiment 1 ~ 11, comparative example 1 ~ 10)
Above-mentioned acquisition containing the solution of radical polymerization polymkeric substance in tackifying resin that to add relative to its nonvolatile component 100 weight part be the specified amount shown in table 3, add vinyl acetic monomer, stir, further interpolation table 3, the linking agent of the specified amount shown in 4, tackifying resin, stir, obtain the binder solution of nonvolatile component 30 % by weight.By the binder solution of gained, be applied to the PET film through demoulding process of thickness 50 μm according to the mode becoming the tape thickness shown in table 3 after drying, then, at 70 DEG C, make its dry 10 minutes, obtain self adhesive tape.It should be noted that, the stacked mold release film for the protection of binder layer on the surface of the both sides of binder layer.
The self adhesive tape of gained is cut into the flat rectangular of 50mm × 100mm, makes test film, peel off removing mold release film.After test film is flooded 24 hours in vinyl acetic monomer at 23 DEG C, take out from vinyl acetic monomer, under the condition of 110 DEG C, make its dry 1 hour.Measure the weight of dried test film, use following formula (1), calculate gel fraction.
Gel fraction (% by weight)=100 × (W2-W0)/(W1-W0) (1)
(W0: the weight of base material, W1: the weight of the test film before dipping, W2: the weight of dipping, dried test film)
(evaluation)
For the self adhesive tape obtained in embodiment, comparative example, carry out following evaluation.Result is shown in table 3,4.
(1) to the permanent load separability of polypropylene (PP) plate
Self adhesive tape in being mounted by the carrying out of wide 20mm × 50mm fits to polypropylene (PP) plate, 23 DEG C, under 50% humidity after maintenance one evening, at 60 DEG C, apply the load of 50g along the direction of 90 °, measure the peel distance after 30 minutes.
◎: peel distance is below 5mm
Zero: peel distance more than 5mm, but at below 10mm
△: peel distance more than 10mm, but at below 15mm
×: peel distance is more than 15mm
[table 3]
[table 4]
Utilizability in industry
According to the present invention, a kind of self adhesive tape can be provided, even if it is also not easily peeled off for thin self adhesive tape, and higher permanent load separability can have been given play to low polarity clung bodies such as polypropylene (PP) plates.
Nomenclature
1: active free radical polymerization acrylic acid polymer
11: the monomer not containing hydroxyl and carboxyl
12: the monomer containing hydroxyl and/or carboxyl
2: radical polymerization acrylic acid polymer
21: the monomer not containing hydroxyl and carboxyl
22: the monomer containing hydroxyl and/or carboxyl
23: the polymkeric substance growing end free base inactivation in the way of reaction
24: the polymkeric substance grown by the free radical kind of new generation in the reaction
Claims (4)
1. a self adhesive tape, it is characterized in that, there is binder layer, described binder layer contains following composition: component of polymer, its contain more than 60 % by weight obtained by active free radical polymerization, weight-average molecular weight is 300,000 ~ 2,000,000, molecular weight distribution be expressed as with Mw/Mn 1.05 ~ 2.5 the acrylic acid polymer containing hydroxyl and/or carboxyl; There is the rosin series tackifying resin of hydroxyl and/or carboxyl or there is the terpenic series tackifying resin of hydroxyl and/or carboxyl; And linking agent.
2. self adhesive tape according to claim 1, is characterized in that, the softening temperature of rosin series tackifying resin or terpenic series tackifying resin is 70 ~ 170 DEG C.
3. self adhesive tape according to claim 1 and 2, is characterized in that, the hydroxyl value of rosin series tackifying resin or terpenic series tackifying resin is 25 ~ 55.
4. the self adhesive tape according to claim 1,2 or 3, is characterized in that, the gel fraction of binder layer is less than 70 % by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426735.0A CN108130026B (en) | 2013-11-07 | 2014-11-06 | Adhesive tape |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-231398 | 2013-11-07 | ||
| JP2013231398 | 2013-11-07 | ||
| JP2014141463A JP5779696B2 (en) | 2013-11-07 | 2014-07-09 | Adhesive tape |
| JP2014-141463 | 2014-07-09 | ||
| PCT/JP2014/079392 WO2015068746A1 (en) | 2013-11-07 | 2014-11-06 | Adhesive tape |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711426735.0A Division CN108130026B (en) | 2013-11-07 | 2014-11-06 | Adhesive tape |
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| Publication Number | Publication Date |
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| CN105324453A true CN105324453A (en) | 2016-02-10 |
| CN105324453B CN105324453B (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201480035915.4A Active CN105324453B (en) | 2013-11-07 | 2014-11-06 | Adhesive tape |
| CN201711426735.0A Active CN108130026B (en) | 2013-11-07 | 2014-11-06 | Adhesive tape |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711426735.0A Active CN108130026B (en) | 2013-11-07 | 2014-11-06 | Adhesive tape |
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| JP (1) | JP5779696B2 (en) |
| KR (2) | KR102311117B1 (en) |
| CN (2) | CN105324453B (en) |
| TW (1) | TWI666287B (en) |
| WO (1) | WO2015068746A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109337619A (en) * | 2018-10-14 | 2019-02-15 | 佛山市顺德区永创翔亿电子材料有限公司 | Creep resisting battery pressure sensitive adhesive and preparation method and battery insulation protect blue film |
| CN112571904A (en) * | 2019-09-27 | 2021-03-30 | 上海仰璞实业有限公司 | Black steel band |
| CN114502644A (en) * | 2019-12-17 | 2022-05-13 | 积水化学工业株式会社 | Resin composition for sintering, inorganic fine particle-dispersed slurry composition, and inorganic fine particle-dispersed sheet |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016181691A1 (en) * | 2015-05-08 | 2016-11-17 | 積水化学工業株式会社 | Double-sided adhesive tape for fixing optical film |
| WO2017073722A1 (en) * | 2015-10-30 | 2017-05-04 | 積水化学工業株式会社 | Double-sided pressure-sensitive adhesive tape |
| KR20180090980A (en) * | 2015-12-21 | 2018-08-14 | 세키스이가가쿠 고교가부시키가이샤 | Adhesive composition and adhesive tape |
| KR102276988B1 (en) | 2015-12-28 | 2021-07-12 | 소켄 케미칼 앤드 엔지니어링 캄파니, 리미티드 | Composition for pressure-sensitive adhesive, pressure-sensitive adhesive layer and surface protection sheet |
| JP6792570B2 (en) | 2015-12-28 | 2020-11-25 | 綜研化学株式会社 | Adhesive compositions, adhesive layers and adhesive sheets |
| JP6611252B2 (en) * | 2016-03-28 | 2019-11-27 | リンテック株式会社 | Semiconductor processing sheet |
| WO2020027180A1 (en) * | 2018-08-01 | 2020-02-06 | 綜研化学株式会社 | Adhesive agent composition and adhesive tape |
| CN110819273B (en) * | 2019-12-03 | 2021-10-29 | 苏州凡赛特材料科技有限公司 | Thin-coating high-viscosity pressure-sensitive adhesive and pressure-sensitive adhesive tape |
| CN110951424B (en) * | 2019-12-06 | 2021-08-20 | 四川羽玺新材料股份有限公司 | Adhesive for mobile phone frame shading adhesive tape and preparation method and application thereof |
| CN114787309A (en) * | 2020-02-10 | 2022-07-22 | 积水化学工业株式会社 | Adhesive tape |
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- 2014-11-06 CN CN201480035915.4A patent/CN105324453B/en active Active
- 2014-11-06 WO PCT/JP2014/079392 patent/WO2015068746A1/en active Application Filing
- 2014-11-06 KR KR1020217031574A patent/KR20210125101A/en not_active Application Discontinuation
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20210125101A (en) | 2021-10-15 |
| KR20160082941A (en) | 2016-07-11 |
| JP2015110724A (en) | 2015-06-18 |
| WO2015068746A1 (en) | 2015-05-14 |
| CN105324453B (en) | 2018-01-30 |
| TW201529793A (en) | 2015-08-01 |
| CN108130026A (en) | 2018-06-08 |
| CN108130026B (en) | 2020-03-03 |
| KR102311117B1 (en) | 2021-10-08 |
| TWI666287B (en) | 2019-07-21 |
| JP5779696B2 (en) | 2015-09-16 |
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