US5272209A
Expired / Lapsed
US
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Modified block copolymer composition
Assignee: Asahi Kasei Corp
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Filing: 1992-01-21
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Granted: 1993-12-21
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Expires: 2012-01-21
Abstract
Abstract A modified block copolymer composition comprising a thermoplastic polymer and a modified block copolymer consisting essentially of a base block copolymer of a monovinyl substituted aromatic hydrocarbon polymer block and an olefin compound polymer block having an ethylenic unsaturation degree not exceeding 20%, the base block copolymer having a molecular unit containing a carboxylic acid group and/or a group derived therefrom grafted thereto. The modified block copolymer composition of the present invention is a resinous composition excellent in impact resistance, adhesion, paint adhesion, weatherability, resistance to thermal deterioration, transparency and gloss or a rubbery or leather-like composition excellent in heat resistance, adrasion resistance, compression set resistance, adhesion, transparency, oil resistance, weatherability and resistance to heat aging.
Inventors
- 👤 Toshinori Shiraki
- 👤 Fusakazu Hayano
- 👤 Hideo Morita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:49
CPC Classifications
C; C08; C08F; C08F287/00; C08F8/00; C08F8/04; C08L; C08L51/00; C08L51/006; C08L77/00; C08F2810/00; C08F2810/20; Y; Y10; Y10S; Y10S525/00; Y10S525/94
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
233 words
A modified block copolymer composition comprising: (a) at least one thermoplastic polymer selected from the group consisting of polar thermoplastic polymers each containing at least one polar functional group, polyoxymethylenes, polycarbonates, modified polycarbonates, polysulfones, modified polysulfones, nitrile polymers, polyphenylene ethers, modified polyphenylene ethers, polyarylene sulfides and modified polyarylene sulfides; and (b) at least one modified block copolymer comprising: a radial base block copolymer of at least two monovinyl substituted aromatic hydrocarbon polymer blocks (A) and at least one olefin compound polymer block (B) composed mainly of a conjugated diene compound which polymer block (B) has its conjugated diene compound moiety hydrogenated to have an ethylenic unsaturated degree not exceeding 20%, said radial base block copolymer having a monovinyl substituted aromatic hydrocarbon content of 5 to 60% by weight, sadi conjugated diene compound moiety of said polymer block (B) having a vinyl content of 25 to 65% in terms of the vinyl content before the hydrogenation of said conjugated diene compound moiety; and at least one molecular unit grafted to said radial base block copolymer, said molecular unit containing at least one member selected from the residue of an unsaturated dicarboxylic acid group and groups derived therefrom; wherein said thermoplastic polymer (a) is present in a weight ratio of 2:98 up to 50:50 relative to said modified block copolymer (b) and wherein said polar thermoplastic polymers are exclusive of said modified block copolymer (b).
Claim 2
Dependent Claim
233 words
A modified block copolymer composition comprising: (a) at least one thermoplastic polymer selected from the group consisting of polar thermoplastic polymers each containing at least one polar functional group, polyoxymethylenes, polycarbonates, modified polycarbonates, polysulfones, modified polysulfones, nitrile polymers, polyphenylene ethers, modified polyphenylene ethers, polyarylene sulfides and modified polyarylene sulfides; and (b) at least one modified block copolymer comprising: a radial base block copolymer of at least two monovinyl substituted aromatic hydrocarbon polymer blocks (A) and at least one olefin compound polymer block (B) composed mainly of a conjugated diene compound which polymer block (B) has its conjugated diene compound moiety hydrogenated to have an ethylenic unsaturated degree not exceeding 20%, said radial base block copolymer having a monovinyl substituted aromatic hydrocarbon content of 5 to 60% by weight, sadi conjugated diene compound moiety of said polymer block (B) having a vinyl content of 25 to 65% in terms of the vinyl content before the hydrogenation of said conjugated diene compound moiety; and at least one molecular unit grafted to said radial base block copolymer, said molecular unit containing at least one member selected from the residue of an unsaturated dicarboxylic acid group and groups derived therefrom; wherein said thermoplastic polymer (a) is present in a weight ratio of 2:98 up to 50:50 relative to said modified block copolymer (b) and wherein said polar thermoplastic polymers are exclusive of said modified block copolymer (b).
Claim 3
Dependent Claim
45 words
The composition according to claim 1, wherein said modified polycarbonates, said modified polysulfones, said modified polyphenylene ethers and said modified polyarylene sulfides are respectively blends of polycarbonates, polysulfones, polyphenylene ethers and polyarylene sulfides with an alkenyl aromatic hydrocarbon polymer and/or an alkenyl aromatic hydrocarbon copolymer.
Claim 4
Dependent Claim
61 words
The composition according to claim 1, wherein said polar thermoplastic polymers each contain at least one polar functional group selected from the group consisting of an amino group, a hydroxyl group, a thiol group, a carboxyl group, an isocyanate group, an epoxy group, a urethane group, an ester group, an amide group, an ammonium salt group and a metal carboxylate group.
Claim 5
Dependent Claim
13 words
The composition according to claim 3, wherein said polar thermoplastic polymers are polyamides.
Claim 6
Dependent Claim
14 words
The composition according to claim 3, wherein said polar thermoplastic polymers are thermoplastic polyesters.
Claim 7
Dependent Claim
14 words
The composition according to claim 3, wherein said polar thermoplastic polymers are thermoplastic polyurethanes.
Claim 8
Dependent Claim
14 words
The composition according to claim 3, wherein said polar thermoplastic polymers are polyvinyl alcohols.
Claim 9
Dependent Claim
14 words
The composition according to claim 3, wherein said polar thermoplastic polymers are polyvinyl esters.
Claim 10
Dependent Claim
50 words
The composition according to claim 3, wherein said polar thermoplastic polymers are ionomers of substrate copolymers of α, β-unsaturated caboxylic acids and other monomers, each isonomer having carboxylic acid groups ionically crosslinked through at least one metal ion selected from the group consisting of monovalent, diavalent and trivalent metal ion.
Claim 11
Dependent Claim
58 words
The composition according to claim 1, wherein said molecular unit containing at least one member selected from the residue of an unsaturated dicarboxylic acid group and groups derived therefrom is grafted to said radial base block copolymer in and mount of 0.05 to 10 parts by weight, per 100 parts by weight of said radial base block copolymer.
Claim 12
Dependent Claim
138 words
The composition according to claim 1, wherein said modified block copolymer is one obtained by the reaction of a radial base block copolymer of at least two monovinyl substituted aromatic hydrocarbon polymer blocks and at least one olefin compound polymer block composed mainly of a conjugated diene compound which olefin compound polymer block has its conjugated diene compound moiety hydrogenated to have an ethylenic unsaturation degree not exceeding 20%, said radial base block copolymer having a monovinyl substituted aromatic hydrocarbon content of 5 to 60% by weight, said conjugated diene compound moiety of said olefin compound polymer block having a vinyl content of 25 to 65% in terms of vinyl content before the hydrogenation of said conjugated diene compound moiety, with at least one modifying agent selected from the group consisting of unsaturated dicarboxylic acids and derivatives thereof.
Claim 13
Dependent Claim
98 words
The composition according to claim 11, wherein said radial base block copolymer is one obtained by selectively hydrogenating a precursory radial block copolymer comprising at least two monovinyl substituted aromatic hydrocarbon polymer blocks and at least one polymer block composed mainly of a conjugated diene compound, said radial precursory block copolymer having a vinyl content of 25 to 65%, wherein said selective hydrogenation is performed at the conjugated diene compound moiety of said polymer block to the extent that the ethylenic unsaturation degree of the polymer block composed mainly of the conjugated diene compound is 20% or less.
Claim 14
Dependent Claim
99 words
The composition according to claim 11, wherein said modifying agent is selected from the group consisting of maleic acid, maleic anhydride, maleic acid esters, maleic acid amides, maleic acid imides, fumaric acid, fumaric acid esters, fumaric acid amides, fumaric acid imides, itaconic acid, itaconic anhydride, itaconic acid esters, itaconic acid amides, itaconic acid imides, halogenated maleic acid, halogenated maleic anhydride, halogenated maleic acid esters, halogenated maleic acid amides, halogenated maleic acid imides, cis-4-cyclohexene-1,2-dicarboxylic acid, cis-4-cyclohexene-1,2-dicarboxylic anhydride, cis-4-cyclohexene-1,2-dicarboxylic acid esters, cis-4-cyclohexene-1,2-dicarboxylic acid amides, cis-4-cyclohexene-1,2-dicarboxylic acid imides, endo-cis-bicyclo(2,2,1)-5-heptene-2,3-dicarboxylic acid, endo-cis-bicyclo(2,2,1)-5-heptene-2,3-dicarboxylic anhydride, endo-cis-bicyclo(2,2,1)-5-heptene-2,3-dicarboxylic acid esters, endo-cis-bicyclo(2,2,1)-5-heptene-2,3-dicarboxylic acid amides, and endo-cis-bicyclo(2,2,1)-5-heptene-2,3-dicarboxylic acid imides.
Claim 15
Dependent Claim
13 words
The composition according to claim 13, wherein said modifying agent is maleic anhydride.
Claim 16
Dependent Claim
40 words
The composition according to claim 1, wherein said modified block copolymer is ionically crosslinked through at least one metal ion selected form the group consisting of monovalent divalent and trivalent metal ions to form an ionically crosslinked modified block copolymer.
Claim 17
Dependent Claim
61 words
The composition according to claim 15, wherein the ionical crosslinking of said modified block copolymers through said metal ion is made in a ration of 0.1 to 3.0, said ratio being defined as a molar ratio of the metal ion relative to the total of the dicarboxylic acid groups and/or groups derived therefrom which are contained in said modified block copolymer.
Claim 18
Dependent Claim
30 words
The composition according to claim 15, wherein said metal ion is at least one member selected from the group consisting of lithium, sodium, potassium, magnesium, calcium, zinc and aluminum ions.
Claim 19
Dependent Claim
33 words
The composition according to claim 1, wherein said modified block copolymer (b) is a radial block copolymer consisting essentially of four of said polymer blocks (A) and four of said polymer blocks (B).
Claim 20
Dependent Claim
28 words
The molded product formed from the composition of claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 14, or 18.
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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) | 1996-12-20 | 1997-06-21 | 1997-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-12-20 | 2001-06-21 | 2001-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-12-20 | 2005-06-21 | 2005-12-21 | $7700.00 | Window Closed / Lapsed |