US3673283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl chloride polymer blended with a nitrile-methacrylate-acrylate terpolymer
Assignee: Japanese Geon Co Ltd
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Filing: 1970-03-23
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Granted: 1972-06-27
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Expires: 1990-03-23
Abstract
Abstract A vinyl chloride polymer composition excelling in processability, transparency and other properties, such composition comprising (I) at least one vinyl chloride polymer selected from the group consisting of vinyl chloride homopolymers and vinyl chloride copolymers, vinyl chloride content of which is at least 70 percent by weight and (II) a copolymer consisting of 2 - 30 percent by weight of an unsaturated nitrile, 10 - 98 percent by weight of methyl methacrylate and 0 - 60 percent by weight of an alkyl acrylate.
Inventors
- 👤 Akira Tanaka
- 👤 Tsuyoshi Hattori
- 👤 Hirotomo Anno
- 👤 Testuyo Kawahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:54
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L33/00; C08L33/04; C08L33/06
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
12 words
A composition according to claim 1 wherein said unsaturated nitrile is acrylonitrile.
Claim 2
Dependent Claim
16 words
A composition according to claim 1 wherein said alkyl acrylate is a C2 8 alkyl acrylate.
Claim 3
Dependent Claim
108 words
A vinyl chloride polymer composition excelling in processability, transparency and other properties, said composition consisting essentially of (I) 100 parts by weight of at least one vinyl chloride polymer selected from the group consisting of vinyl chloride homopolymers and vinyl chloride copolymers containing at least 70 percent by weight vinyl chloride, and (II) 0.2 - 100 parts by weight of a copolymer consisting of 2 - 30 percent by weight of an unsaturated nitrile, 10 - 88.2 percent by weight of methyl methacrylate and up to 60 percent by weight of an alkyl acrylate, the weight ratio of alkyl acrylate to methyl methacrylate being from 1:9 to 2:1.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |