US4032597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic resin composition
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1975-03-25
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Granted: 1977-06-28
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Expires: 1995-03-25
Abstract
Abstract Thermoplastic resin composition having excellent transparency, impact strength, weatherability and gas screening effect comprising a graft copolymer which is produced by polymerizing a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer in the presence of a gummy copolymer produced by polymerizing a conjugated diolefinic monomer (0 to 90 parts by weight), at least one vinyl cyanide monomer (5 to 60 parts by weight) and at least one unsaturated carboxylic acid ester monomer (5 to 90 parts by weight), in admixture with or without a resin copolymer of a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer.
Inventors
- 👤 Tanoshi Yamagoshi
- 👤 Minoru Terakawa
- 👤 Aiiti Shirahata
- 👤 Sadao Sekiguchi
- 👤 Saburo Mishiba
- 👤 Takeshi Shimamura
- 👤 Shigeru Tajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:24
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08F265/00; C08F265/04; C08L; C08L51/00; C08L51/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
104 words
A thermoplastic resin composition having excellent transparency, impact strength, weatherability and gas screening effects comprising (1) a graft copolymer which is produced by polymerizing a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer in the presence of a gummy copolymer produced by polymerizing 10 to 60 parts by weight of a conjugated diolefinic monomer, 5 to 60 parts by weight of at least one vinyl cyanide monomer and 5 to 90 parts by weight of at least one unsaturated carboxylic acid ester monomer in admixture with (2) a resinous copolymer of a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer.
Claim 2
Dependent Claim
104 words
A thermoplastic resin composition having excellent transparency, impact strength, weatherability and gas screening effects comprising (1) a graft copolymer which is produced by polymerizing a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer in the presence of a gummy copolymer produced by polymerizing 10 to 60 parts by weight of a conjugated diolefinic monomer, 5 to 60 parts by weight of at least one vinyl cyanide monomer and 5 to 90 parts by weight of at least one unsaturated carboxylic acid ester monomer in admixture with (2) a resinous copolymer of a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer.
Claim 3
Dependent Claim
28 words
The thermoplastic resin composition according to claim 1, wherein the composition comprises 3 to 50% by weight of the gummy copolymer on the basis of the whole composition.
Claim 4
Dependent Claim
40 words
The thermoplastic resin composition according to claim 1, wherein the vinyl cyanide monomer is an olefinic unsaturated nitrile compound of the formula: ##STR3## wherein R is hydrogen, an alkyl group having 1 to 4 carbon atoms or a halogen atom.
Claim 5
Dependent Claim
86 words
The thermoplastic resin composition according to claim 1, wherein the unsaturated carboxylic acid ester monomer is a compound of the formula: ##STR4## wherein R 1 is hydrogen, an alkyl group having 1 to 4 carbon atoms or the group --COOR 3 , R 2 is hydrogen, an alkyl group having 1 to 4 carbon atoms, the group --CH 2 --COOR 3 or the group --COOR 3 and R 3 is an alkyl group having 1 to 18 carbon atoms, an aromatic group or an alicyclic group.
Claim 6
Dependent Claim
29 words
The thermoplastic resin composition according to claim 1, wherein the conjugated diolefinic monomer is a member selected from the group consisting of 1,3-butadiene, isoprene, chloroprene, bromoprene, cyanoprene and 2,3-diethyl-1,3-butadiene.
Claim 7
Dependent Claim
38 words
The thermoplastic resin composition according to claim 1, wherein the resinous copolymer comprises 90 to 40 parts by weight of the vinyl cyanide monomer and 10 to 60 parts by weight of the unsaturated carboxylic acid ester monomer.
Claim 8
Dependent Claim
65 words
The thermoplastic resin composition according to claim 1, wherein the graft copolymer is produced by polymerizing 95 to 20 parts by weight of a mixture of monomers comprising 90 to 40% by weight of the vinyl cyanide monomer and 10 to 60% by weight of the unsaturated carboxylic acid ester monomer in the presence of 5 to 80 parts by weight of the gummy copolymer.
Claim 9
Dependent Claim
28 words
The thermoplastic resin composition according to claim 7, wherein the composition comprises 3 to 50% by weight of the gummy copolymer on the basis of the whole composition.
Claim 10
Dependent Claim
38 words
The thermoplastic resin composition according to claim 8, wherein the resinous copolymer comprises 90 to 40 parts by weight of the vinyl cyanide monomer and 10 to 60 parts by weight of the unsaturated carboxylic acid ester monomer.
Claim 11
Dependent Claim
56 words
The thermoplastic resin composition according to claim 9, wherein the gummy copolymer is produced by polymerizing 10 to 60 parts by weight of a conjugated diolefinic monomer, 15 to 40 parts by weight of at least one vinyl cyanide monomer and 10 to 60 parts by weight of at least one unsaturated carboxylic acid ester monomer.
Claim 12
Independent Claim
103 words
A method for producing a thermoplastic resin composition having excellent transparency, impact strength, weatherability and gas screening effects which comprises graft-copolymerizing a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer in the presence of a gummy copolymer produced by polymerizing 10 to 60 parts by weight of a conjugated diolefinic monomer, 5 to 60 parts by weight of at least one vinyl cyanide monomer and 5 to 90 parts by weight of at least one unsaturated carboxylic acid ester monomer, and blending the graft copolymer with a resinous copolymer of a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer.
Claim 13
Independent Claim
103 words
A method for producing a thermoplastic resin composition having excellent transparency, impact strength, weatherability and gas screening effects which comprises graft-copolymerizing a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer in the presence of a gummy copolymer produced by polymerizing 10 to 60 parts by weight of a conjugated diolefinic monomer, 5 to 60 parts by weight of at least one vinyl cyanide monomer and 5 to 90 parts by weight of at least one unsaturated carboxylic acid ester monomer, and blending the graft copolymer with a resinous copolymer of a vinyl cyanide monomer and an unsaturated carboxylic acid ester monomer.
Claim 14
Dependent Claim
60 words
The method according to claim 11, wherein the graft-copolymerization is carried out by using 95 to 20 parts by weight of a mixture of monomers comprising 90 to 40% by weight of the vinyl cyanide monomer and 10 to 60% by weight of the unsaturated carboxylic acid ester monomer and 5 to 80 parts by weight of the gummy copolymer.
Claim 15
Dependent Claim
36 words
The method according to claim 12, wherein the resinous copolymer comprises 90 to 40 parts by weight of the vinyl cyanide monomer and 10 to 60 parts by weight of the unsaturated carboxylic acid ester monomer.
Claim 16
Dependent Claim
26 words
The method according to claim 13, wherein the composition comprises 3 to 50% by weight of the gummy copolymer on the basis of the whole composition.
References Cited (Backward Citations)
US3475516A
Cited
US3880951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |