아크릴계 엘라스토머 및 이것을 이용한 조성물

21-02-2018 дата публикации

Номер:

KR0101830973B1

Автор: 요시노리 나가이, 시게루 하에노, 켄이치 토미오카, 아키코 카와구치, 마사토 후쿠이, 나가이 요시노리, 하에노 시게루, 토미오카 켄이치, 카와구치 아키코, 후쿠이 마사토

Принадлежит: 히타치가세이가부시끼가이샤, 히타치가세이가부시끼가이샤

Контакты:

Номер заявки: 00-11-102036165

Дата заявки: 19-04-2011

[1]

The present invention refers to, for electronic material can be appropriately used as the low molecular weight acrylic elastomers and acrylic elastomer composition using the same are disclosed.

[2]

Recent, size reduction in electronic equipment, weight, involving speed, these electronic density progressing a semiconductor package, in addition, etc. even substrate semiconductor package mounting density required. In addition, even wiring substrate is further grown further advance is coming in now.

[3]

Conventional, adhesive bonding semiconductor or number, various electronic mounted components with electronic materials are provided with a mounting substrate, adhesion, heat resistance, electrical insulation and reliability for a long period etc. required. Their requirements as electronic material, acrylonitrile [...] elastomer, an epoxy resin and cured synthetic rubber containing acrylonitrile acrylic derivatives containing such a composition used for wide number (for example, patent document 1 reference) etc..

[4]

However, recent rapid semiconductor package or mounting board's density, along the fine line, more stringent reliability etc. even electronic material required. The temperature detector, acrylonitrile [...] elastomer, in acrylonitrile containing acrylic elastomer compositions, been found that burden on the electrically insulating film layer in the substrate. Caused cited of one of ionic impurities, extended ion capture same number techniques (for example, patent document 2 reference) is adding a power number but, in the context of the if the obtained fine wiring be drinkable. In addition, acrylonitrile acrylic elastomer (for example, reference patent document 3) does not include a power number but also, hygroscopic rate suitable prediction to the number still remains and specific, sufficiently satisfying be drinkable resulting reliability for a long period.

[5]

The victims of the present invention, to continuously review, of alicyclic hydrocarbon substituent having 5 - 22 carbon atoms as indispensable components, by using acrylonitrile free acrylic elastomer, an electric wire (patent document 4) found under film layer can be obtained. However, improving an electrically isolating further required that are, in the acrylic elastomer of the invention, not necessarily satisfy required characteristics cannot be in the nanometer range.

[6]

Prior art document

[7]

Patent document

[8]

[Patent document 1] Japanese station patent disclosure Official Gazette plain 8 - 283535 call

[9]

[Patent document 2] Japanese station patent disclosure Official Gazette 2002 - 60716 call

[10]

[Patent document 3] Japanese station patent gazette number 3483161 call

[11]

[Patent document 4] Japanese station patent disclosure Official Gazette 2009 - 132888 call

[12]

The present invention refers to, under film layer has an electric wire, long-term reliability in addition for electronic material using the same acrylic elastomers and acrylic compositions containing optically pure [...] intended for the number.

[13]

The victims of the present invention, excludes hard review said number and kind result, acrylonitrile free acrylic elastomer as essential ingredients, by using specific monomer, acrylic elastomer having the film layer under an electric wire was found.

[14]

The present invention refers to i.e., as structural units, at least the general formula (I), (II) and (III) structure including acrylic elastomers are disclosed.

[15]

[Method 1]

[16]

[17]

(X is, of alicyclic hydrocarbon substituent including exhibits 5 - 22 carbon atoms. R1 is hydrogen or methyl group exhibits.)

[18]

[Method 2]

[19]

[20]

(Y is, 1 - 10 carbon atoms of a hydrocarbon group exhibits including substituents. R2 is methyl group exhibits.)

[21]

[Method 3]

[22]

[23]

(Z is, to OH, or, carboxyl group, hydroxyl groups, to acid anhydride, amino group, amide group and an epoxy-functional group including at least one element selected from the group consisting of species exhibits 1 substituent. R3 is hydrogen or methyl group exhibits.)

[24]

Acrylic elastomer of the present invention, alicyclic hydrocarbon groups having 5 - 22 carbon atoms in the ester portion of methacrylic ester or acrylic esters and,

[25]

A hydrocarbon group having 1 - 10 carbon atoms in the ester portion methacrylic acid esters with,

[26]

Carboxyl group, hydroxyl groups, to acid anhydride, amino group, at least one element selected from the group consisting of amide and an epoxy-functional species and at least 1 carbon - 1 having functional group-containing monomer containing double bonds obtained by polymerizing a monomer mixture preferably.

[27]

In the present invention, as a monomer mixture, said 5 - 22 carbon atoms in the ester portion of methacrylic ester or acrylic esters having alicyclic hydrocarbon groups 5 - 94. 5 Parts by weight, and a hydrocarbon group having 1 - 10 carbon atoms in the methacrylic ester 5 - 65 parts by weight of said ester portion, said functional group-containing monomer 0. 5 - 30 Parts by weight, 0 - 90 parts by weight of polymerizable monomer copolymerized with these, monomers containing 100 parts by weight to the total weight of the monomer mixture is preferably employed substrate.

[28]

In addition the present invention in, said alicyclic hydrocarbon [...] of 5 - 22 carbon atoms, cycloalkyl group [...], nor [...], tree [...], [...] isocyanate, and including at least 1 species selected from the group consisting preferably adamantane [...].

[29]

In addition of the present invention acrylic elastomer, preferably saturated hygroscopic rate 0. 6% Hereinafter are disclosed.

[30]

In addition, the present invention refers to, acrylic elastomer solvent obtained by containing acrylic elastomer composition for electronic material are disclosed.

[31]

In a magnetic field the invention embodiment

[32]

Acrylic elastomer of the present invention, as structural units, at least the general formula (I), (II) and (III) including a structure characterized.

[33]

[Method 4]

[34]

[35]

(X is, of alicyclic hydrocarbon substituent including exhibits 5 - 22 carbon atoms. R1 is hydrogen or methyl group exhibits.)

[36]

[Method 5]

[37]

[38]

(Y is, 1 - 10 carbon atoms of a hydrocarbon group exhibits including substituents. R2 is methyl group exhibits.)

[39]

[Method 6]

[40]

[41]

(Z is, OH, or, carboxyl group, hydroxyl groups, to acid anhydride, amino group, amide group and an epoxy-functional group including at least one element selected from the group consisting of species exhibits 1 substituent. R3 is hydrogen or methyl group exhibits.)

[42]

In the present invention, represented by general formula (I) X of said alicyclic hydrocarbon groups as substituent including of said 5 - 22 carbon atoms, alicyclic hydrocarbon groups having a carbon number of 5 - 22 without a smooth back particularly substituted, alkoxy having alicyclic hydrocarbon groups of 5 - 22 carbon atoms, alicyclic hydrocarbon groups having carbon atoms of 5 - 22 amino group such as is cited.

[43]

In addition, 5 - 22 carbon atoms in said general formula (I) with respect [...] of alicyclic hydrocarbon, etched carry.

[44]

In the present invention, hydrocarbon group of 1 - 10 carbon atoms represented by said general formula (II) as including Y of said substituted, a hydrocarbon group having 1 - 10 carbon atoms substituted specially number without a smooth back, alkoxy having 1 - 10 carbon atoms of a hydrocarbon group, a hydrocarbon group having 1 - 10 carbon atoms amino group such as is cited.

[45]

In addition, with regard to 1 - 10 carbon atoms in said general formula (II) hydrocarbon [...], etched carry.

[46]

In the present invention, represented by general formula (III) said Z of OH, or, carboxyl group, hydroxyl groups, to acid anhydride, amino group, amide group and an epoxy-functional group in terms of the process is provided including at least one element selected from the group consisting of species 1, etched carry.

[47]

Of said acrylic elastomer, 5 - 22 carbon atoms in the ester portion of alicyclic hydrocarbon groups and having methacrylic acid esters or acrylic esters,

[48]

A hydrocarbon group having 1 - 10 carbon atoms in the ester portion methacrylic acid esters with,

[49]

Carboxyl group, hydroxyl groups, to acid anhydride, amino group, at least one element selected from the group consisting of amide and an epoxy-functional double bonds and at least 1 carbon - 1 species having functional group-containing monomer obtained by polymerizing a monomer mixture containing preferably.

[50]

To obtain acrylic elastomer used for the polymerization of a monomer component of one of, 5 - 22 carbon atoms in the ester portion of methacrylic ester or acrylic esters having alicyclic hydrocarbon groups (hereinafter, 'alicyclic monomer' referred as follows.) preferably using.

[51]

Equal to or more than 5 carbon atoms, the [...][...] monomer sufficient stability, sufficient board rate reducing effect obtained elastomer to be coated. Back 22 hereinafter carbon atoms, obtained elastomer Tg is satisfied way other. These alicyclic monomer carbon number, more preferably 6 - 15 and back, most preferably one having 6 - 10. As the alicyclic monomer structure, [...] cycloalkyl group, nor [...], tree [...], [...] isocyanate, and alicyclic hydrocarbon groups including at least 1 species selected from the group consisting of adamantane [...] preferably monomer.

[52]

Acrylic elastomer monomer ingredient, using said alicyclic monomer, hygroscopic rate efficiently shape, preferred transfer resistant corrosion point.

[53]

Said alicyclic as monomers specifically, acrylic acid of sodium, [...] acrylic acid, acrylic acid [...], [...] acrylic acid, acrylic acid [...], [...] acrylic acid, acrylic acid [...], [...] acrylic acid, acrylic acid [...], methacrylated acrylic acid, acrylic acid menthyl, acrylic acid neopentyl, acrylic acid [...], [...] acrylic acid, acrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Clutch - 8 - yl, acrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Methyl - 4 - clutch, acrylic acid cyclo [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], methacrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Clutch - 8 - yl, methacrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Methyl - 4 - clutch, like methacrylic acid cyclo [...] is cited. These alone, or by mixing 2 using at least one can be. In addition, alicyclic as monomers, methacrylic ester and acrylic esters of said pivotably by the shop.

[54]

In [...] among these, acrylic acid [...], [...] acrylic acid, acrylic acid [...], [...] acrylic acid, acrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Clutch - 8 - yl, acrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Methyl - 4 - clutch, acrylic acid [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], meta [...], methacrylic acid tri-cyclo [5. 2. 1. O^{2, 6} ] Clutch - 8 - yl, methacrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Methyl - 4 - clutch, methacrylic acid cyclo [...], meta [...] is preferable disclosed.

[55]

In addition [...] coated and adhesive in view of acrylic acid, acrylic acid [...], [...] acrylic acid, acrylic acid [...], acrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Clutch - 8 - yl, acrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Methyl - 4 - clutch, in particular preferably [...] acrylic acid and the like.

[56]

Said alicyclic monomers in combination or on behalf, of alicyclic hydrocarbon groups 5 - 22 carbon atoms with acrylamide, methacrylamide of alicyclic hydrocarbon groups having 5 - 22 carbon atoms like structure of acrylic elastomer constituting said type (I) used as monomeric component for obtaining a predetermined time interval lapses disclosed.

[57]

5 - 22 Carbon atoms of said alicyclic hydrocarbon groups having acrylamide as specifically, [...] N - cycloalkyl, cycloalkyl [...] N -, N - methyl [...], N - tree [...], N - nor [...], N - nor [...], N - phenyl [...], N - cyano [...], N - [...] isocyanate, N - [...], N - methyl acrylamide, N - [...], N - [...] adamantane, [...] N - dimethyl, N - tri-cyclo [5. 2. 1. 0^{2, 6} ] - 8 - Ylamine [...] clutch, N - tri-cyclo [5. 2. 1. 0^{2, 6} ] Methyl - 4 - clutch acrylamide, N - cyclo [...] acrylamide or the like is cited.

[58]

In addition, the catalyzed alicyclic hydrocarbon groups having carbon atoms of said 5 - 22 as specifically, N - cyclo [...], N - cyclo [...], [...] N - methyl cycloalkyl, N - tree [...], N - nor [...], N - nor [...], N - phenyl [...], N - cyano [...], N - [...] isocyanate, N - [...], N - [...], N - [...], adamantane [...] N -, N - dimethyl [...], N - tri-cyclo [5, 2. 1. 0^{2, 6} ] Clutch - 8 - [...], N - tri-cyclo [5. 2. 1. 0^{2, 6} ] Methyl - 4 - clutch [...], like N - cyclo [...] is cited.

[59]

In addition, to obtain a monomer component containing the acrylic elastomer used for the polymerization of one of, a hydrocarbon group having 1 - 10 carbon atoms in the ester portion preferably using methacrylic acid ester. This, module and a structure of said type (II).

[60]

Back carbon atoms 10 hereinafter, electrically insulating sufficiently and, in addition, the main point is equal to the melting point of the monomer in a small metering and materials such input. These methacrylic acid esters of carbon number esters, preferably back than 2 - 8, most preferably 4 - 8 mm.. As said hydrocarbon [...] structure, linear sodium pyrophosphate, branch even if so, annular but may, in a portion of the cyclic structure other than class 3 carbon structure having, at a lower temperature than, separation at weight reduction occurs by pyrolysis, thermoresistant preferable to WIPO. The, 1 - 10 carbon atoms which, in addition linear hydrocarbon group, not having a branched hydrocarbon group having class 3 carbon Cu2Se methacrylic acid ester.

[61]

Acrylic elastomer monomer ingredient, using said methacrylic acid ester, is further improved transfer resistant-controlled, preferably.

[62]

A hydrocarbon group having 1 - 10 carbon atoms in the ester portion methacrylic acid as an ester specifically, methyl methacrylic acid, methacrylic acid ethyl, propyl n - methacrylic acid, methacrylic acid i - propyl, n - butyl methacrylic acid, methacrylic acid i - butyl, sec - methacrylic acid butyl, meta [...], methacrylic acid n - hexyl, octyl n - methacrylic acid, methacrylic acid 2 - ethylhexyl, methacrylic acid like [...] is cited.

[63]

In addition, a hydrocarbon group having 1 - 10 carbon atoms in the ester portion of 1 - 10 carbon atoms as the methacrylic ester of a hydrocarbon group, preferably aliphatic due.

[64]

Among these, in view of Tg obtained elastomer, methacrylic acid n - butyl, melter

[65]

Csfv [...], methacrylic acid n - hexyl, 2 - ethylhexyl or the like in particular preferably methacrylic acid.

[66]

Said methacrylic acid esters with 1 - 10 carbon atoms in the ester portion having in combination or on behalf of a hydrocarbon group, a hydrocarbon group having 1 - 10 carbon atoms like structure of said type (II) catalyzed constituting acrylic elastomer used as monomeric component for obtaining a predetermined time interval lapses disclosed.

[67]

The catalyzed carbon atoms of a hydrocarbon group having 1 - 10 as specifically, N - methyl [...], N, N - dimethyl [...], N - ethyl [...], N, N - [...], N a-n - propyl [...], N, N - di - n - propyl [...], N provided i profile [...], N, N - di - i - profile [...], [...] N a-n - butyl, N, N - di - n - butyl [...], N a-i - butyl [...], N, N - di - i - butyl [...], N-a sec - butyl [...], N, N - di - scc - butyl [...], [...] N -, N, N - [...], [...] N a-n -, N, N - di - n - [...], [...] N a-n -, N, N - di - n - [...], N provided 2 - ethyl [...], N, N - di - 2 - ethyl [...], N - [...][...], N, [...] N - like is cited.

[68]

In addition, carbon atoms of a hydrocarbon group having 1 - 10 carbon atoms of a hydrocarbon group as the catalyzed synthesis of 1 a-l0, preferably aliphatic due.

[69]

In addition, to obtain acrylic elastomer used for the polymerization of one of a monomer component containing, in the molecule, carboxyl group, hydroxyl groups, to acid anhydride, amino group, at least one element selected from the group consisting of amide and an epoxy-functional polymerizable carbon - carbon double bonds of a controller and at least 1 1 species having functional group-containing monomer preferably using. Functional group-containing monomers are, module and a structure of said type (III).

[70]

Said functional group-containing monomer include, for example, 2 - acrylic [...], 2 - acrylic [...], 2 - acrylic [...], 2 - meta [...], 2 - meta [...], 2 - meta [...], carboxyl group-containing monomer such as 2 - meta [...] (in said type (III), Z='including carboxyl substituted' did); acrylic acid, methacrylic acid such as an unsaturated carboxylic monomer (in said type (TII), Z=OH did);

[71]

Hydroxyethyl acrylic acid, methacrylic acid hydroxyethyl, hydroxypropyl acrylic acid, methacrylic acid hydroxypropyl, butyl hydroxy acrylic acid, methacrylic acid hydroxy butyl, cyclo [...], cyclo [...], N - [...], [...] N - group-containing monomer such as (in said type (III), Z='hydroxyl substituents including' did);

[72]

Anhydride [...] tree, tree [...] anhydride, cyclo [...], cyclo [...] acid anhydride group-containing monomer such as (in said type (III), Z='including acid anhydride group substituted' did);

[73]

A cationic ribosome composed of acrylic acid, meta [...], methacrylic acid - 2, 2, 6, 6 - tetra [...], amino group-containing monomer such as methacrylic acid - 1, 2, 2, 6, 6 - [...] (said type in (III), Z='substituted amino group including' did);

[74]

Acrylamide, methacrylic amides such as amide group-containing monomer (said type in (III), Z='substituted amino group including' did);

[75]

N - amide group containing monomers such as acrylic [...] (in said type (III), Z='substituted derivatives including' did);

[76]

Acrylic acid glycidyl, meta [...], [...] ethyl α -, α-a n - propyl [...], α-a n - butyl [...], 2 - (2, 3 - epoxy hydroxypropoxy) ethyl acrylate, 2 - (2, 3 - epoxy hydroxypropoxy) ethyl methacrylate, 3 - (2, 3 - epoxy hydroxypropoxy) propyl acrylate, 3 - (2, 3 - epoxy hydroxypropoxy) propyl methacrylate, 4 - (2, 3 - epoxy propoxy) butyl acrylate, 4 - (2, 3 - epoxy hydroxypropoxy) butyl methacrylate, 5 - (2, 3 epoxy hydroxypropoxy) [...], 5 - (2, 3 - epoxy hydroxypropoxy) [...], 6 - (2, 3 - epoxy hydroxypropoxy) [...], 6 - (2, 3 - epoxy pro) [...], acrylic acid - 3, 4 - epoxy butyl, methacrylic acid - 3, 4 - epoxy butyl, neopentyl epoxy - 4, 5 - acrylic acid, methacrylic acid - 4, 5 - epoxy neopentyl, - 6, 7 - epoxy [...] acrylic acid, methacrylic acid - 6, 7 - epoxy [...], α - ethyl - 6, 7 - epoxy [...] acrylic, acrylic acid - 3 - methyl - 3, 4 - epoxy butyl, - 3 - methyl - 3, 4 - epoxy butyl methacrylic acid, acrylic acid - 4 - methyl - 4, 5 - epoxy neopentyl, cyclopentyl methyl - 4, 5 - epoxy - 4 - methacrylic acid, acrylic acid - 5 - methyl - 5, 6 - epoxy cyclohexyl, - 5 - methyl - 5, 6 - epoxy cyclohexyl methacrylic acid, glycidyl methyl - β - acrylic acid, methacrylic acid - β - methyl glycidyl, α - - β - glycidyl methyl ethyl acrylic acid, acrylic acid - 3 - methyl - 3, 4 - epoxy butyl, - 3 - methyl - 3, 4 - epoxy butyl methacrylic acid, acrylic acid - 4 - methyl - 4, 5 - epoxy neopentyl, cyclopentyl methyl - 4, 5 - epoxy - 4 - methacrylic acid, acrylic acid - 5 - methyl - 5, 6 - epoxy hexyl, cyclohexyl - 5 - methyl - 5, 6 - epoxy-group containing monomer such as methacrylic acid epoxy (said type in (III), Z='substituted epoxy groups including' did); can be use. These alone, or by mixing 2 using at least one can be.

[77]

Among these, preferably storage stability in view of an epoxy-group containing monomer, preferably than meta [...].

[78]

In the present invention, acrylic elastomer used for the polymerization of monomer ingredient to obtain, said alicyclic monomer, said hydrocarbon group having 1 - 10 carbon atoms in the ester portion of said functional group-containing monomer in addition to the methacrylic ester and, the monomer is copolymerized with a possible, otherwise can be using monomer.

[79]

Copolymerizable monomer can be, coated essentially assembly, heat resistance and stability without impairing then a, without specifically defined, in one example, methyl acrylic acid, ethyl acrylate, acrylic acid n - propyl, propyl i - acrylic acid, acrylic acid n - butyl, acrylic acid i - butyl, sec - acrylic acid butyl, neopentyl acrylic acid, acrylic acid n - hexyl, acrylic acid 2 - ethylhexyl, octyl n - acrylic acid, acrylic acidity [...], [...] preparation of acrylic acid, acrylic acid butoxyethyl, phenyl acrylic acid, acrylic acid benzyl, [...] acrylic acid, acrylic acid naphthyl, [...] acrylic acid such as acrylic acid esters;

[80]

Methacrylic acid butoxyethyl, methacrylic acid phenyl, methacrylic acid benzyl, meta [...], meta [...], [...] metadata such as methacrylic acid esters;

[81]

4 - Vinylpyridine, 2 - vinylpyridine, α - methylstyrene, α - ethyl styrene, α - fluorostyrene, α - [...], α - bromo styrene, fluorostyrene, chloro styrene, bromo styrene, methylstyrene, [...], (o -, m -, p -) hydroxystyrene, aromatic vinyl compound such as styrene;

[82]

Acrylonitrile, methacrylonitrile cyanation of vinyl compounds such as;

[83]

Maleic anhydride, unsaturated dicarboxylic acid such as [...];

[84]

N - methyl butoxymaleimide, N - ethyl butoxymaleimide, N - profile butoxymaleimide, N provided i - profile butoxymaleimide, N - butyl butoxymaleimide, N a-i - butyl butoxymaleimide, N-a t - butyl butoxymaleimide, N - [...], N - cyclo [...], N - benzyl butoxymaleimide, N - phenyl butoxymaleimide of N - substituted oxygen;

[85]

Vinyl acetate; and the like cited, among all, methyl acrylic acid, ethyl acrylate, acrylic acid n - butyl, 2 - ethyl [...] preferably than acrylic acid. They used a retarder 1 species or 2 or more.

[86]

In addition, in the present invention, acrylonitrile, methacrylonitrile or the like the cyanation of vinyl compound (nitrile-based monomer), electrochemistry and high temperature high humidity conditions without are sealed, the transfer resistant corrosion is deteriorated, preferably without the use.

[87]

In the present invention, the blending ratio of each monomer as, alicyclic monomer 5 - 94. 5 Parts by weight, methacrylic ester 5 - 65 parts by weight of a hydrocarbon group having carbon atoms in the ester portion 1 a-l0, functional group-containing monomer 0. 5 - 30 Parts by weight, and 0 - 90 parts by weight of polymerizable monomer copolymerized with, preferably 100 parts by weight total parts by weight monomer mixing ratio.

[88]

In the present invention alicyclic monomer amount, 5 - 94. 5 Parts by weight of an but preferably, preferably 10 - 80 hygroscopic point than in the untreated powder by weight. The blended amount of the alicyclic monomer is greater than 5 parts by weight, hygroscopicity and can meet, 94. 5 Parts by weight of back hereinafter, mechanical strength is insufficient disclosed.

[89]

The present invention of a hydrocarbon group having 1 - 10 carbon atoms in the ester portion in that of methacrylic acid ester, preferably 5 - 65 parts by weight of an but, preferably than in the untreated powder 15 - 55 weight transfer resistant corrosion and flexible. A hydrocarbon group having 1 - 10 carbon atoms in the ester portion is greater than 5 parts by weight of the blended amount of methacrylic acid esters, and transfer resistant corrosion effect is insufficient, 65 parts by weight of back hereinafter, Tg can be satisfying.

[90]

The present invention in functional group-containing monomer amount 0. 5 - 30 Parts by weight of an but preferably, more preferably 1 - 20 parts by weight of an. Said formulations amount 0. 5 Parts by weight is greater than the adhesive and strength sufficiently and, 30 parts by weight of that copolymerizes hereinafter sometimes fails to back causing crosslinking reaction when one neither, in addition an excellent storage stability and disclosed.

[91]

In the present invention, elastomer number as the high pressure liquid coolant to a polymerization process for bulk polymerization method, suspension polymerization, solution polymerization, precipitation polymerization, emulsion polymerization or the like can be applying existing method. Among all cost and is most preferably in terms of suspension polymerization.

[92]

The suspension polymerization, is performed in an aqueous medium, suspension number by adding gap3. As suspension number, polyvinyl alcohol, methyl cellulose, water-soluble polymer such as polyacrylamide; calcium phosphate, sparingly soluble inorganic material such as magnesium pyrophosphate; at sea, among polyvinyl alcohol of non-ionic water-soluble polymer is preferred. Ionic of water-soluble polymer or sparingly soluble inorganic material is performing, ionic impurities ix. elastomer obtained in remaining. The water soluble polymer, 0 to 100 parts by weight of a total amount of monomer. 01 - 1 Parts by weight of the preferred.

[93]

When a polymerization initiator in the present invention, radical polymerization using disclosure number can be. Radical polymerization as disclosure number, benzoyl peroxyde, lauroyl peroxide, di - t - butyl [...], t - butyl peroxy - 2 - ethyl [...], butyl peroxy - 3, 3, 5 - trimethyl cyclohexane 1, 1 a-t -, an organic peroxide such as t - butyl [...];

[94]

Azo bis isobutyrate methacrylonitrile, azo bis - 4 - methoxy - 2, 4 - dimethyl ballet methacrylonitrile, azo bis cyclohexanone - 1 - carbonitrile, azo dibenzoylmethane that the azo compound;

[95]

[...], [...] such as water-soluble catalyst;

[96]

And a peroxide or a redox (Redox) by combination of number [...] reduction catalyst; or the like, can be used can be conventional radical polymerization is analog. Polymerization is disclosure number, 0 to 100 parts by weight of a total amount of monomer. 01 - 10 Parts by weight of a type to be used in the preferred range.

[97]

In the present invention, 'monomer mixture' RM, alicyclic monomer, hydrocarbon group having 1 - 10 carbon atoms in the ester portion of methacrylic ester, functional group-containing monomer, preferably copolymerized with polymerizable monomer including them by means necessary.

[98]

In addition, as number of a dicarboxylic acid dichloride, mercaptan-based compound, thio for converting natural, carbon tetrachloride, α - methylstyrene dimer or the like can be added if necessary.

[99]

When handlers on polyolefins, polymerization temperature, can be appropriately selected between 0 provided 200 °C, 40 provided 120 °C Cu2Se.

[100]

The elastomer to said number tank such as, but not specifically limited to its molecular weight, weight average molecular weight in a range of 10,000 - 2,000,000 (gel-like terms such chromatography [...] polystyrene) is preferably, in particular is preferably in a range of 100,000 - 1,500,000. A weight average molecular weight is greater than the adhesive strength sufficiently and 10,000, back 2,000,000 hereinafter, to soluble number for good conductivity and disclosed.

[101]

Acrylic elastomer of the present invention, saturated hygroscopic rate 0. Preferably in 6% hereinafter. Saturated hygroscopic rate 0. Back 6% hereinafter, film layer under an electrically isolating degradation can billion in number. Saturated hygroscopic rate 0. Is necessary to 6% hereinafter, each monomeric component has appropriate selection, combination can be achieved by adjusting the amount.

[102]

The present invention saturation moisture absorption rate, when the acrylic elastomer after weighing, temperature 85 °C, to constant weight in moisture until 85% humidity, then system is detected to be a value higher than that.

[103]

[1 Be]

[104]

[105]

Acrylic elastomer of the present invention, Tg is preferably in 15 °C hereinafter, more preferably in 10 °C hereinafter, more preferably in 5 °C hereinafter. Tg is becomes high, flexible, adhesive drop which can put ix.. Tg is obtained elastomer, and/or compounding amount by properly adjusting the type of monomeric component can be designed.

[106]

Acrylic elastomer of the present invention, the solvent, solution of acrylic elastomer composition as, for semiconductor device, wiring board for number [...] method is used for disapproval.

[107]

As the solvent, toluene, xylene, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, hops, acetic acid butyl, tetrahydrofuran, like N - methylpyrrolidone, can be general organic solvent. Viscosity so that the difficulty in workability, amount of number for user can change a disclosed. Is used in an amount thereof, relative to the total with acrylic elastomer, acrylic elastomer content ratio of the (solid), 5 - 45% by weight amount to preferably, 10 - 40% by weight amount is more preferably disclosed.

[108]

Acrylic elastomer of the present invention, necessary epoxy resin, in addition cured epoxy resin by mixing it with number, polymer [...] to this, can be used as electronic material. These epoxy resin, and cured epoxy resin specially number number is not one commercially available and can be of material.

[109]

In addition, reactive, adhesive, in order to improve the strength charging number, for accelerating curing number, silane coupling number, can be various pillar material combination. The shape of the electronic material even pasty even solution phase or a film substrate.

[110]

The blending ratio of the epoxy resin of the present invention acrylic elastomer is particularly smooth free number, for example electronic/ratio of 10/90 - 90/10 (weight ratio) and industrial process from the latter.

[111]

Said epoxy resin include, for example systemic action and is hardened, functional or more generally 2 (1 molecule containing at least 2 epoxy groups) can be epoxy resin. 2 Functional epoxy resin as, or bisphenol-type epoxy resin such as bisphenol A F are exemplified. In addition, functional or more 3 (1 3 molecule containing one or more epoxy groups) of a polyfunctional epoxy resin and also be used, as 3 functional or more polyfunctional epoxy resin, phenol novolac-type epoxy resin, cresol novolac type epoxy resin and the like are exemplified.

[112]

Epoxy resin curing number is, in such a conventional epoxy resin cures can be used for number, amine, polyamide, acid anhydride, poly [...], [...], and phenolic [...] 1 2 having at least one molecule compound bisphenol A, bisphenol F, bisphenol S or, phenol resin can be use. In moisture transfer resistant sputtering method in a neutral phenol novolak resin, novolak resin or cresol novolac resins such as bisphenol preferably use.

[113]

Epoxy resin curing number is, generally, with respect to 1 equivalents of epoxy resin, epoxy resin curing number reacted with epoxy group 0. 6 - 1. 4 Preferably are used to equivalent and, 0. 8 - 1. 2 More preferably such that the equivalent weight. Epoxy resin curing number is returned if heat resistance can be satisfied.

[114]

In addition number for accelerating curing with using epoxy resin curing number may, as accelerating curing number, various imidazole or the like is cited. For accelerating curing number is used that of preferably, total number 0 to 100 parts by weight of epoxy resin and cured epoxy resin. 1 - 20 Parts by weight, more preferably 0. 5 - 15 Parts by weight are disclosed. 0. 1 Parts by weight equal to or more than a high curing rate sufficiently and, in addition 20 parts by weight of words time back hereinafter can be satisfying.

[115]

Film onto a smooth number caused by erroneous detection in the event of a particularly is free, for example base film using said semiconductor device is coated with a varnish coating device all sorts of drying adhesive number number can be high pressure liquid coolant.

[116]

Acrylic elastomer of the present invention, film adhesive number number of fabrication, flexible wiring board substrate material and for exposure device of adhesive number, circuit connecting adhesive film method is suitable with each other.

[117]

Acrylic elastomer of the present invention, a low relative dielectric constant volumetric resistance value of the high temperature and high humidity conditions and less variation in moisture, in addition SB reliability for a long period. Thus, the elastomer to use electronic material to a predetermined, electrical insulation and long-term and highly reliable electronic material can be [...] number.

[118]

In the embodiment

[119]

Hereinafter, the present invention specifically described in the embodiment but by, or limit the scope of the present invention are not correct.

[120]

(In the embodiment 1)

[121]

Acrylic acid tri-cyclo [5. 2. 1. 0^{2, 6} ] Clutch - 8 - one ([...] resistant industrial (main) number, FA provided 513A) 300g, 350g (BA) butyl acrylic acid, methacrylic acid ethyl (EMA) 300g, meta [...] 50g (GMA) by mixing, 5g lauroyl peroxide obtained monomer mixture further, n - as [...] 0 number of a dicarboxylic acid dichloride. 45G dissolving, was mixed liquor.

[122]

5L and condenser with 0 number of polyvinyl alcohol as autoclave suspension setting. 04G, in addition to a mixed solution with stirring add 2000g said ion-exchanged water, 250 rpm stirring speed, 60 °C 5 time in nitrogen atmosphere, followed in time 2 90 °C is polymerized, resin particles are obtained (polymerization rate is, characterized by weight 99% min). Flushing the resin particles, dewatering, drying, dissolving 35 weight % methyl ethyl ketone [...] so heated, resin varnish number was high pressure liquid coolant. Following 200 parts by weight of resin varnish, epoxy resin as bisphenol-type epoxy resin (epoxy resin (main) number [...], epitaxial coat 828) 15 parts by weight of A, phenol resin (DIC (main) number, LF2882) 15 parts by weight, 1 - cyanoethyl - 2 - phenyl imidazole as accelerating curing number (number [...] resistant industrial (main), cure sol 2PZ provided CN) 0. 5 Parts by weight of mixed solution, 500 micro m thickness by applying aluminum above, drying in film thickness 150 micro m number 170 °C 3 time in small fronts.

[123]

(In the embodiment 2)

[124]