Patent US4419491A successfully refreshed from Google Patents.
US4419491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic resin composition excellent in color development
Assignee: NO 3-2-4 NAKANOSHIMA KITA-KU OSAKA-SHI OSAKA-FU JAPAN
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Filing: 1982-02-23
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Granted: 1983-12-06
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Expires: 2002-02-23
Abstract
Abstract A thermoplastic resin composition with excellent color development which comprises (A) a graft polymer comprising an ethylene-propylene elastomeric polymer and units of at least two kinds of monomers chosen from aromatic vinyl compounds, vinyl cyanide compounds and other copolymerizable monomers grafted thereon, and if necessary, (A') a copolymer comprising units of at least two kinds of monomers chosen from aromatic vinyl compounds, vinyl cyanide compounds and other copolymerizable monomers in an amount of not more than 95% by weight based on the combined weight of the graft polymer (A) and the copolymer (A'), with (B) a methyl methacrylate polymer, the proportion of the combined weight of the graft polymer (A) and the copolymer (A') and the weight of the methyl methacrylate polymer being from 5:95 to 95:5.
Inventors
- 👤 Hajime Sakano
- 👤 Fumio Nakai
- 👤 Yukio Tomari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:21
CPC Classifications
C; C08; C08L; C08L51/00; C08L51/06; C08L23/00; C08L23/02; C08L23/16; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L33/00; C08L33/04; C08L33/06; C08L33/10; C08L33/12; C08L69/00; C08L9/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
155 words
A thermoplastic resin composition which comprises (A) a graft polymer comprising an ethylene-propylene elastomeric polymer and units of at least two kinds of monomers chosen from aromatic vinyl compounds, vinyl cyanide compounds and other copolymerizable monomers grafted thereon and, (A') a copolymer consisting of copolymerized monomer units comprising at least one aromatic vinyl compound and at least one vinyl cyanide compound and other copolymerizable monomers in a weight proportion of 55:45 to 85:15 and having an intrinsic viscosity of 0.40 to 1.10 (determined in dimethylformamide at 30° C.), the weight proportion of the graft polymer (A) and the copolymer (A') being from 5:95 to 80:20, with (B) a methyl methacrylate polymer consisting of copolymerized monomer units comprising at least about 50% by weight methyl methacrylate units, the proportion of the combined weight of the graft polymer (A) and the copolymer (A') and the weight of the methyl methacrylate polymer (B) being from 5:95 to 95:5.
Claim 2
Dependent Claim
155 words
A thermoplastic resin composition which comprises (A) a graft polymer comprising an ethylene-propylene elastomeric polymer and units of at least two kinds of monomers chosen from aromatic vinyl compounds, vinyl cyanide compounds and other copolymerizable monomers grafted thereon and, (A') a copolymer consisting of copolymerized monomer units comprising at least one aromatic vinyl compound and at least one vinyl cyanide compound and other copolymerizable monomers in a weight proportion of 55:45 to 85:15 and having an intrinsic viscosity of 0.40 to 1.10 (determined in dimethylformamide at 30° C.), the weight proportion of the graft polymer (A) and the copolymer (A') being from 5:95 to 80:20, with (B) a methyl methacrylate polymer consisting of copolymerized monomer units comprising at least about 50% by weight methyl methacrylate units, the proportion of the combined weight of the graft polymer (A) and the copolymer (A') and the weight of the methyl methacrylate polymer (B) being from 5:95 to 95:5.
Claim 3
Dependent Claim
38 words
The thermoplastic resin composition according to claim 1, wherein the proportion of the combined weight of the graft polymer (A) and the copolymer (A') and the weight of the methyl methacrylate polymer (B) is from 5:95 to 80:20.
Claim 4
Dependent Claim
53 words
A thermoplastic resin composition according to claims 1 or 2 wherein the methyl methacrylate polymer (B) is a homopolymer of methyl methacrylate or a copolymer of methyl methacrylate and at least one copolymerizable monomer containing unit of methyl methacrylate in an amount of not less than 50% by weight based on the copolymer.
Claim 5
Dependent Claim
50 words
The thermoplastic resin composition according to claim 1 or 2, which further comprises (C) any other polymer or resin in an amount of 0.5 to 400 parts by weight to 100 parts of the total amount of the graft polymer (A), the copolymer (A') and the methyl methacrylate polymer (B).
Claim 6
Dependent Claim
20 words
The thermoplastic resin composition according to claim 4, wherein the polymer or resin (C) is a diene rubber graft copolymer.
Claim 7
Dependent Claim
49 words
The thermoplastic resin composition according to claim 5, wherein the diene rubber graft copolymer is included in an amount of 0.5 to 30 parts by weight to 100 parts by weight of the total amount of the graft polymer (A), the copolymer (A') and the methyl methacrylate polymer (B).
Claim 8
Dependent Claim
30 words
The thermoplastic resin composition according to claim 4, wherein the polymer or resin (C) is a polycarbonate resin chosen from homopolymers and copolymers of 2,2-bis(4-hydroxyphenyl)alkanes, bis(4-hydroxyphenyl)ether, bis(4-hydroxyphenyl)sulfone, bis(4-hydroxyphenyl)sulfide and bis(4-hydroxyphenyl)sulfoxide.
Claim 9
Dependent Claim
47 words
The thermoplastic resin composition according to claim 7, wherein the polycarbonate resin is included in an amount of 25 to 400 parts by weight to 100 parts by weight of the total amount of the graft polymer (A), the copolymer (A') and the methyl methacrylate polymer (B).
Claim 10
Dependent Claim
19 words
The thermoplastic resin composition according to claim 4, wherein the polymer or resin (C) is a vinyl chloride resin.
Claim 11
Dependent Claim
48 words
The thermoplastic resin composition according to claim 9, wherein the vinyl chloride resin is included in an amoutn of 25 to 400 parts by weight to 100 parts by weight of the total amount of the graft polymer (A), the copolymer (A') and the methyl methacrylate polymer (B).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |