US4608414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic resin composition containing an imide polymer and graft copolymer
Assignee: Denka Co Ltd
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Filing: 1985-11-22
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Granted: 1986-08-26
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Expires: 2005-11-22
Abstract
Abstract A thermoplastic resin composition comprising: (A) from 10 to 90 parts by weight of an imide-modified polymer having an imido group and obtained by reacting ammonia and/or a primary amine to a copolymer prepared by the polymerization of a monomer mixture comprising from 50 to 70% by weight of an aromatic vinyl monomer and from 30 to 50% by weight of an unsaturated dicarboxylic acid anhydride; (B) from 10 to 90 parts by weight of a graft copolymer prepared by copolymerizing from 30 to 75% by weight of a mixture comprising from 40 to 80% by weight of a rubber-like polymer having a weight average particle size of from 0.3 to 0.6 mu m and from 20 to 60% by weight of a rubber-like polymer having a weight average particle size of from 0.1 to 0.2 mu m, with from 25 to 70% by weight of a monomer mixture comprising from 55 to 75% by weight of an aromatic vinyl monomer and from 25 to 45% by weight of a vinyl cyanide monomer, said rubber-like polymer being a butadiene polymer or a butadiene copolymer containing at least 50% by weight of butadiene; and (C) from 0 to 80 parts by weight of a copolymer prepared by polymerizing from 40 to 80% by weight of an aromatic vinyl monomer, from 0 to 40% by weight of a vinyl cyanide monomer and from 0 to 40% by weight of a vinyl monomer copolymerizable therewith.
Inventors
- 👤 Tomoyuki Kitsunai
- 👤 Tetsuji Miura
- 👤 Norio Yagi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:02
CPC Classifications
C; C08; C08L; C08L35/00; C08L35/06; C08L51/00; C08L51/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
240 words
A thermoplastic resin composition comprising: (A) from 10 to 90 parts by weight of an imide-modified polymer having an imido group and obtained by reacting ammonia and/or a primary amine to a copolymer prepared by the polymerization of a monomer mixture comprising from 50 to 70% by weight of an aromatic vinyl monomer and from 30 to 50% by weight of an unsaturated dicarboxylic acid anhydride; (B) from 10 to 90 parts by weight of a graft copolymer prepared by copolymerizing from 30 to 75% by weight of a mixture comprising from 40 to 80% by weight of a rubber-like polymer having a weight average particle size of from 0.3 to 0.6 μm and from 20 to 60% by weight of a rubber-like polymer having a weight average particle size of from 0.1 to 0.2 μm, with from 25 to 70% by weight of a monomer mixture comprising from 55 to 75% by weight of an aromatic vinyl monomer and from 25 to 45% by weight of a vinyl cyanide monomer, said rubber-like polymer being a butadiene polymer or a butadiene copolymer containing at least 50% by weight of butadiene; and (C) from 0 to 80 parts by weight of a copolymer prepared by polymerizing from 40 to 80% by weight of an aromatic vinyl monomer, from 0 to 40% by weight of a vinyl cyanide monomer and from 0 to 40% by weight of a vinyl monomer copolymerizable therewith.
Claim 2
Dependent Claim
240 words
A thermoplastic resin composition comprising: (A) from 10 to 90 parts by weight of an imide-modified polymer having an imido group and obtained by reacting ammonia and/or a primary amine to a copolymer prepared by the polymerization of a monomer mixture comprising from 50 to 70% by weight of an aromatic vinyl monomer and from 30 to 50% by weight of an unsaturated dicarboxylic acid anhydride; (B) from 10 to 90 parts by weight of a graft copolymer prepared by copolymerizing from 30 to 75% by weight of a mixture comprising from 40 to 80% by weight of a rubber-like polymer having a weight average particle size of from 0.3 to 0.6 μm and from 20 to 60% by weight of a rubber-like polymer having a weight average particle size of from 0.1 to 0.2 μm, with from 25 to 70% by weight of a monomer mixture comprising from 55 to 75% by weight of an aromatic vinyl monomer and from 25 to 45% by weight of a vinyl cyanide monomer, said rubber-like polymer being a butadiene polymer or a butadiene copolymer containing at least 50% by weight of butadiene; and (C) from 0 to 80 parts by weight of a copolymer prepared by polymerizing from 40 to 80% by weight of an aromatic vinyl monomer, from 0 to 40% by weight of a vinyl cyanide monomer and from 0 to 40% by weight of a vinyl monomer copolymerizable therewith.
Claim 3
Dependent Claim
22 words
The thermoplastic composition according to claim 1, wherein the aromatic vinyl monomer in (A) is styrene, α-methylstyrene, vinyl toluene, t-butylstyrene or chlorostyrene.
Claim 4
Dependent Claim
26 words
The thermoplastic resin composition according to claim 1, wherein the unsaturated dicarboxylic acid anhydride in (A) is maleic anhydride, itaconic anhydride, citraconic anhydride or aconitic anhydride.
Claim 5
Dependent Claim
32 words
The thermoplastic resin composition according to claim 1, wherein the primary amine in (A) is an alkyl amine, a chloro- or bromo-substituted alkyl amine, an aromatic amine or a halogen-substituted aromatic amine.
Claim 6
Dependent Claim
25 words
The thermoplastic resin composition according to claim 1, wherein the butadiene copolymer in (B) is a butadiene-styrene copolymer, a butadiene-methylmethacrylate copolymer or a butadiene-acrylonitrile copolymer.
Claim 7
Dependent Claim
23 words
The thermoplastic resin composition according to claim 1, wherein the aromatic vinyl monomer in (B) is styrene, a-methylstyrene, vinyl toluene, t-butylstyrene or chlorostyrene.
Claim 8
Dependent Claim
20 words
The thermoplastic resin composition according to claim 1, wherein the vinyl cyanide monomer in (B) is acrylonitrile, methacrylonitrile or α-chloroacrylonitrile.
Claim 9
Dependent Claim
23 words
The thermoplastic resin composition according to claim 1, wherein the aromatic vinyl monomer in (C) is styrene, α-methylstyrene, vinyl toluene, t-butylstyrene or chlorostyrene.
Claim 10
Dependent Claim
20 words
The thermoplastic resin composition according to claim 1, wherein the vinyl cyanide monomer in (C) is acrylonitrile, methacrylonitrile or α-chloroacrylonitrile.
Claim 11
Dependent Claim
47 words
The thermoplastic resin composition according to claim 1, wherein the copolymerizable vinyl monomer in (C) is an acrylate monomer, a methacrylate monomer, a vinyl carboxylic acid monomer, an acrylic acid amide, a methacrylic acid amide, acenaphthylene, an N-vinyl carbazole, an N-alkyl-substituted maleimide or an N-aromatic substituted maleimide.
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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) | 1989-08-25 | 1990-02-24 | 1990-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-25 | 1994-02-24 | 1994-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-25 | 1998-02-24 | 1998-08-26 | $7700.00 | Window Closed / Lapsed |