Patent US4008295A successfully refreshed from Google Patents.
US4008295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic resin composition
Assignee: Sumitomo Bakelite Co Ltd
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Filing: 1975-07-18
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Granted: 1977-02-15
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Expires: 1995-07-18
Abstract
Abstract A vinyl chloride polymer composition consisting essentially of 60 to 40% by weight of a vinyl chloride-ethylene copolymer having an average degree of polymerization of 300 to 500 and an ethylene content of 1 to 10% by weight and 40 to 60% by weight of at least one interpolymer selected from the group consisting of acrylonitrile-butadiene-styrene terpolymers and acrylonitrile-methyl methacrylate-butadiene-styrene quadripolymers. This composition has a heat deformation temperature of 75° to 90° C and is capable of easily giving by injection molding an article having a good surface appearance, a good gloss due to its excellent moldability and excellent impact resistance.
Inventors
- 👤 Toshiro Koshida
- 👤 Yasuo Nakagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:35
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L55/00; C08L55/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692; Y10T428/31696
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
57 words
A vinyl chloride resin composition comprising 40 to 60% by weight of a vinyl chloride-ethylene copolymer having an average degree of polymerization of 300 to 500 and an ethylene content of 1 to 10% by weight and 60 to 40% by weight of an acrylonitrile-methyl methacrylate-butadiene-styrene quadripolymer having a heat deformation temperature of 80° to 100° C.
Claim 2
Dependent Claim
57 words
A vinyl chloride resin composition comprising 40 to 60% by weight of a vinyl chloride-ethylene copolymer having an average degree of polymerization of 300 to 500 and an ethylene content of 1 to 10% by weight and 60 to 40% by weight of an acrylonitrile-methyl methacrylate-butadiene-styrene quadripolymer having a heat deformation temperature of 80° to 100° C.
Claim 3
Dependent Claim
34 words
A composition according to claim 1 wherein the acrylonitrile-methyl methacrylate-butadiene-styrene quadripolymer has a heat deformation temperature of 80° to 100° C as measured according to ASTM D-648 under a fiber stress of 66 psi.
Claim 4
Dependent Claim
31 words
A composition according to claim 1 wherein the amount of the vinyl chloride-ethylene copolymer is 60 to 50% by weight, and the amount of remainder is 40 to 50% by weight.
Claim 5
Dependent Claim
37 words
A composition according to claim 1 which further contains a methyl methacrylate-butadiene-styrene terpolymer in a proportion of up to 33 parts by weight per 100 parts by weight of a total of the copolymer and the quadripolymer.
Claim 6
Dependent Claim
18 words
A part for electric instruments and appliances obtained by subjecting the composition according to claim 1 to injection-molding.
Claim 7
Dependent Claim
18 words
A part for electric instruments and appliances obtained by subjecting the composition according to claim 3 to injection-molding.
Claim 8
Dependent Claim
18 words
A part for electric instruments and appliances obtained by subjecting the composition according to claim 4 to injection-molding.
Claim 9
Dependent Claim
74 words
A vinyl chloride resin composition comprising 40 to 60% by weight of a vinyl chloride-ethylene copolymer having an average degree of polymerization of 300 to 500 and an ethylene content of 1 to 10% by weight and 60 to 40% by weight of a mixture of an acrylonitrile-butadiene-styrene terpolymer having a heat deformation temperature of 80° to 100° C and an acrylonitrile-methyl methacrylate-butadiene-styrene quadripolymer having a heat deformation temperature of 80° to 100° C.
Claim 10
Dependent Claim
74 words
A vinyl chloride resin composition comprising 40 to 60% by weight of a vinyl chloride-ethylene copolymer having an average degree of polymerization of 300 to 500 and an ethylene content of 1 to 10% by weight and 60 to 40% by weight of a mixture of an acrylonitrile-butadiene-styrene terpolymer having a heat deformation temperature of 80° to 100° C and an acrylonitrile-methyl methacrylate-butadiene-styrene quadripolymer having a heat deformation temperature of 80° to 100° C.
Claim 11
Dependent Claim
39 words
A composition according to claim 8, which further contains a methyl methacrylate-butadiene-styrene terpolymer in a proportion of up to 33 parts by weight per 100 parts by weight of a total of the copolymer, the terpolymer and the quadripolymer.
Claim 12
Dependent Claim
31 words
A composition according to claim 8, wherein the amount of the vinyl chloride-ethylene copolymer is 60 to 50% by weight, and the amount of remainder is 40 to 50% by weight.
Claim 13
Dependent Claim
18 words
A part for electric instruments and appliances obtained by subjecting the composition according to claim 8 to injection-molding.
Claim 14
Dependent Claim
18 words
A part for electric instruments and appliances obtained by subjecting the composition according to claim 9 to injection-molding.
Claim 15
Dependent Claim
18 words
A part for electric instruments and appliances obtained by subjecting the composition according to claim 10 to injection-molding.
Claim 16
Dependent Claim
87 words
A vinyl chloride resin composition comprising 40 to 60% by weight of a vinyl chloride-ethylene copolymer having an average degree of polymerization of 300 to 500 and an ethylene content of 1 to 10% by weight and 60 to 40% by weight of an acrylonitrile-butadiene-styrene terpolymer having a heat deformation temperature of 80° to 100° C, which further contains a methyl methacrylate-butadiene-styrene terpolymer in a proportion of up to 33 parts by weight per 100 parts by weight of a total of the copolymer and the terpolymer.
Claim 17
Dependent Claim
87 words
A vinyl chloride resin composition comprising 40 to 60% by weight of a vinyl chloride-ethylene copolymer having an average degree of polymerization of 300 to 500 and an ethylene content of 1 to 10% by weight and 60 to 40% by weight of an acrylonitrile-butadiene-styrene terpolymer having a heat deformation temperature of 80° to 100° C, which further contains a methyl methacrylate-butadiene-styrene terpolymer in a proportion of up to 33 parts by weight per 100 parts by weight of a total of the copolymer and the terpolymer.
Claim 18
Dependent Claim
18 words
A part for electric instruments and appliances obtained by subjecting the composition according to claim 14 to injection-molding.
References Cited (Backward Citations)
US2802809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |