Patent US4792584A successfully refreshed from Google Patents.
US4792584A
Expired / Lapsed
US
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Adhesive compositions
Assignee: Asahi Kasei Corp
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Filing: 1987-04-23
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Granted: 1988-12-20
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Expires: 2007-04-23
Abstract
Abstract An adhesive composition comprising 100 parts by weight of a block copolymer (a) containing of at least one polymer block composed mainly ofa vinyl aromatic hydrocarbon and at least one polymer block composed mainly of butadiene in which (i) the vinyl aromatic hydrocarbon content [S] is 10 to 30% by weight, (ii) the 1,2-vinyl content of butadiene portion [V] is 20 to 50%, and (iii) the relationship between said vinyl aromatic hydrocarbon content [S] and said 1,2-vinyl content of butadiene portion [V] satisfies the formula,: 40≦[S]+[V]≦70 40 to 200 parts by weight of a tackifier (b), and, optionally various stabilizers, and a process for producing said composition.
Inventors
- 👤 Toshinori Shiraki
- 👤 Yasuo Hattori
- 👤 Masao Karouji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:49
CPC Classifications
C; C09; C09J; C09J109/00; C09J153/00; C09J153/02; C08; C08F; C08F297/00; C08F297/02; C08F297/04; C08L; C08L53/00; C08L53/02
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
98 words
An adhesive composition comprising 100 parts by weight of a block copolymer (a) consisting of at least one polymer block composed mainly of a vinyl aromatic hydrocarbon and at least one polymer block composed mainly of butadiene in which (i) the vinyl aromatic hydrocarbon content [S] is 10 to 30% by weight, (ii) the 1,2-vinyl content of butadiene portion [V] is 20 to 50%, and (iii) the relationship between said vinyl aromatic hydrocarbon content [S] and said 1,2-vinyl content of butadiene portion [V] satisfies the formula: 40≦[S]+[V]≦70 and 40 to 200 parts by weight of a tackifier (b).
Claim 2
Dependent Claim
98 words
An adhesive composition comprising 100 parts by weight of a block copolymer (a) consisting of at least one polymer block composed mainly of a vinyl aromatic hydrocarbon and at least one polymer block composed mainly of butadiene in which (i) the vinyl aromatic hydrocarbon content [S] is 10 to 30% by weight, (ii) the 1,2-vinyl content of butadiene portion [V] is 20 to 50%, and (iii) the relationship between said vinyl aromatic hydrocarbon content [S] and said 1,2-vinyl content of butadiene portion [V] satisfies the formula: 40≦[S]+[V]≦70 and 40 to 200 parts by weight of a tackifier (b).
Claim 3
Dependent Claim
108 words
The adhesive composition, according to claim 1, which further comprises 0.05 to 5 parts by weight, per 100 parts by weight of said block copolymer (a), of at least one member of a phenolic compound (c) represented by the general formulas [I] and [II] selected from the group consisting of ##STR7## wherein Z is OH or ##STR8## R 1 is an alkyl group having 1 to 4 carbon atoms, R 2 is an alkenyl group having 2 to 4 carbon atoms, R 3 is a tert-buytyl group or a cyclohexyl group, and R 4 is a hydrogen atom or an alkyl group having 1 to 18 carbon atoms.
Claim 4
Dependent Claim
31 words
The adhesive composition, according to claim 2, which further comprises 0.05 to 5 parts by weight of a sulfur-containing stabilizer (d) per 100 parts by weight of said block copolymer (a).
Claim 5
Dependent Claim
50 words
The adhesive composition according to claim 1, wherein component (a) is a block copolymer in which the vinyl aromatic hydrocarbon content [S] is 15 to 25% by weight, the 1,2-vinyl content of butadiene portion [V] is 25 to 45%, and the relationship between [S] and [V] satisfies the formula. 45≦[S]+[V]≦60
Claim 6
Dependent Claim
27 words
The adhesive composition according to claim 1, wherein the vinyl aromatic hydrocarbon is at least one member selected from the group consisting of styrene, p-methylstyrene and α-methylstyrene.
Claim 7
Dependent Claim
47 words
An adhesive composition according to claim 1, wherein the tackifier is at least one member selected from the group consisting of terpene resin, aromatic-compound-modified terpene resin, alicyclic saturated petroleum resin, rosin ester, disproportionated rosin ester, completely hydrogenated rosin ester, aliphatic petroleum resin, and modified aliphatic petroleum resin.
Claim 8
Dependent Claim
44 words
The adhesive composition according to claims 2 or 3, wherein the phenolic compound represented by the above general formula [I] is at least one member selected from the group consisting of 2,2'-methylene-bis-(4-methyl-6-tertbutylphenol) monoacrylate, 2,2'-methylenebis-(4,6-di-tert-butylphenol) monoacrylate, 2,2'-ethylidene-bis-(4,6-di-tert-butylphenol) monoacrylate, 2,2'-methylene-bis-(4-methyl-6-tert-butylphenol) diacrylate, 2,2'-methylene-bis-(4,6-di-tert-butylphenol) diacrylate, and 2,2'-ethylidene-bis-(4,6-di-tert-butylphenol) diacrylate.
Claim 9
Dependent Claim
34 words
The adhesive composition according to claims 2 or 3, wherein the phenolic compound represented by the above general formula [II] is at least one member selected from the group consisting of 3,9-bis-[2-{3-(3-tert-butyl-4-hydroxy-5-methylphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane and 3,9-bis-[2-{3-(3-tert-butyl-4-hydroxy-5-isopropylphenyl)propionyloxy}-1,1-dimethylethyl]-2,4,8,10-tetraoxaspiro[5.5]undecane.
Claim 10
Dependent Claim
69 words
The adhesive composition according to claim 3, wherein the sulfur-containing stabilizer is at least one member of a compound represented by the general formulae [III] and [IV] selected from the group consisting of ##STR9## wherein R 5 is an alkyl group having 3 to 20 carbon atoms, and each of R 6 and R 7 is a hydrogen atom or an alkyl group having 1 to 18 carbon atoms.
Claim 11
Dependent Claim
20 words
The adhesive composition according to claim 9, wherein the sulfur-containing stabilizer represented by the above general formula [III] is pentaerythritoltetrabis)-3-dodecylthiopropionate).
Claim 12
Dependent Claim
32 words
The adhesive composition according to claim 9, wherein the sulfur-containing stabilizer represented by the above general formula [IV] is at least one member selected from the group consisting of 3,9-bis-(2-dodecylthioethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane and 3,9-bis-(2-octadecylthiopropyl)2-4,8,10-tetraoxaspiro-[5.5]undecane.
Claim 13
Dependent Claim
75 words
The adhesive composition according to claims 1, 2 or 3, which further contains, as coponent (e), a phenolic component represented by the following general formulae [V], [VI], [VII] and [VIII] in an amount of 0.05 to 5 parts by weight per 100 parts by weight of the block copolymer as component (a): component (e) selected from ##STR10## wherein R 8 is ##STR11## and R 9 is an alkyl group having 2 to 22 carbon atoms.
Claim 14
Dependent Claim
20 words
The adhesive composition according to claim 12, wherein the phenolic compound represented by the general formula [V] is n-octadecyl-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl) propionate.
Claim 15
Dependent Claim
20 words
The adhesive composition according to claim 12, wherein the phenolic compound represented by the general formula [VI] is tetrakis-[methylene-3-(3',5'-di-tert-butyl-4'-hydroxyphenyl) propionate]methane.
Claim 16
Dependent Claim
19 words
The adhesive composition according to claim 12, wherein the phenolic compound represented by the general formula [VII] is 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene.
Claim 17
Dependent Claim
19 words
The adhesive composition according to claim 12, wherein the phenolic compound represented by the general formula [VIII] is 2,4-bis-(n-octylthio)-6-(4-hydroxy-3,5-di-tert-butylanilino)-1,3,5-triazine.
Claim 18
Dependent Claim
36 words
The adhesive composition according to claims 1, 2 or 3, which further contains a phosphourus-containing stabilizer in an amount of 0.05 to 5 parts by weight per 100 parts by weight of said block copolymer (a).
Claim 19
Dependent Claim
34 words
The adhesive composition according to claim 17, wherein the phosphorus-containing stabilizer is at least one member selected from the group consisting of tris-(nonylphenyl) phosphite, cyclic neopentanetetraylbis(octadecylphosphite), tris(2,4-di-tert-butylphenyl)phosphite, 4,4-butylidene-bis(3-methyl-6-tert-bytylphenyl-di-tridecyl) phosphite, tetrakis(2,4-di-tert-butylphenyl) 4,4-biphenylenediphosphinate and cyclic neopentanetetrayl-bis-(2,4-di-tert-butylphenyl)phosphite.
Claim 20
Dependent Claim
34 words
The adhesive composition according to claim 1, which further contains a softener (component (f)) in an amount of 5 to 150 parts by weight per 100 parts by weight of the block copolymer (a).
Claim 21
Dependent Claim
105 words
A process for producing an adhesive composition which comprises blending 100 parts by weight of a block copolymer (a) consisting of at least one polymer block composed mainly of a vinyl aromatic hydrocarbon and at least one polymer block composed mainly of butadiene in which (i) the vinyl aromatic hydrocarbon content (S) is 10 to 30% by weight, (ii) the 1,2-vinyl contnt of butadiene portion (V) is 20 to 50%, and (iii) the relationship between said vinyl aromatic hydrocarbon content (S) and said 1,2-vinyl content of butadiene portion (V) satisfying the formula: 4≦ (S)+(V)≦70 with 40 to 200 parts by weight of a tackifier (b).
Claim 22
Dependent Claim
105 words
A process for producing an adhesive composition which comprises blending 100 parts by weight of a block copolymer (a) consisting of at least one polymer block composed mainly of a vinyl aromatic hydrocarbon and at least one polymer block composed mainly of butadiene in which (i) the vinyl aromatic hydrocarbon content (S) is 10 to 30% by weight, (ii) the 1,2-vinyl contnt of butadiene portion (V) is 20 to 50%, and (iii) the relationship between said vinyl aromatic hydrocarbon content (S) and said 1,2-vinyl content of butadiene portion (V) satisfying the formula: 4≦ (S)+(V)≦70 with 40 to 200 parts by weight of a tackifier (b).
Claim 23
Dependent Claim
33 words
The adhesive composition according to claim 12, which further contains a phosphorus-containing stabilizer in an amount of 0.05 to 5 parts by weight per 100 parts by weight of said block copolymer (a).
Claim 24
Dependent Claim
34 words
The adhesive composition according to claim 12, which further contains a softener (component (f)) in an amount of 5 to 150 parts by weight per 100 parts by weight of the block copolymer (a).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-12-20 | 1992-06-20 | 1992-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-20 | 1996-06-20 | 1996-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-20 | 2000-06-20 | 2000-12-20 | $7700.00 | Window Closed / Lapsed |