Patent US3283031A successfully refreshed from Google Patents.
US3283031A
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Rigid polyvinyl chloride compositions containing polyurethane elastomers, and a copolymer of a styrene and an ethylenically unsaturated nitrile
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1963-03-13
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Granted: 1966-11-01
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Expires: 1983-03-13
Abstract
No abstract record available.
Inventors
- 👤 Charles E Greene
- 👤 Francis J Maurer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:49
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/12; C08L75/00; C08L75/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A RIGID, IMPACT-RESISTANT, AGE-RESISTANT, THERMOPLASTIC COMPOSITION COMPRISING (A) 47 TO 77% BY WEIGHT OF A POLYMER COMPOSED PREDOMINANTLY OF POLYMERIZED VINYL HALIIDE, (B) ABOUT 23 TO 35% BY WEIGHT OF A RESINOUS COPOLYMER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF STYRENE, ALPHA METHYL STYRENE AND NUCLEAR SUBSITUTED STYRENES AND A COPOLYMERIZABLE ETHYLENICALLY UNSATURATED NITRILE, SAID COPOLYMER CONTAIIINING FROM ABOUT 15 TO 40% BY WEIGHT OF SAID NITRILE, AND (C) ABOUT 10 TO 18% BY WEIGHT OF A RUBBERY POLYURETHANE SELECTED FROM THE GROUP CONSISTING OF RUBBERY POLYESTERURETHANES AND RUBBERY POLYETHERURETHANES.
Claim 2
Dependent Claim
92 words
A RIGID, IMPACT-RESISTANT, AGE-RESISTANT, THERMOPLASTIC COMPOSITION COMPRISING (A) 47 TO 77% BY WEIGHT OF A POLYMER COMPOSED PREDOMINANTLY OF POLYMERIZED VINYL HALIIDE, (B) ABOUT 23 TO 35% BY WEIGHT OF A RESINOUS COPOLYMER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF STYRENE, ALPHA METHYL STYRENE AND NUCLEAR SUBSITUTED STYRENES AND A COPOLYMERIZABLE ETHYLENICALLY UNSATURATED NITRILE, SAID COPOLYMER CONTAIIINING FROM ABOUT 15 TO 40% BY WEIGHT OF SAID NITRILE, AND (C) ABOUT 10 TO 18% BY WEIGHT OF A RUBBERY POLYURETHANE SELECTED FROM THE GROUP CONSISTING OF RUBBERY POLYESTERURETHANES AND RUBBERY POLYETHERURETHANES.
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) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |