US2652384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of a premilled butadiene-acrylonitrile copolymer and a nonrubbery thermoplastic synthetic resin
Assignee: Standard Oil Development Co
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Filing: 1949-04-12
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Granted: 1953-09-15
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Expires: 1969-04-12
Abstract
No abstract record available.
Inventors
- 👤 Andrew F Sayko
- 👤 John R Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:46
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/06; C08L25/12; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L9/00; C08L9/02; C08L25/10; Y; Y10; Y10S; Y10S273/00; Y10S273/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
A COMPOSITE THERMOPLASTIC HOMOGENEOUS COMPOSITION CONSISTING OF A MIXTURE OF A NORMALLY RUBBERY COPOLYMER OF BUTADIENE-1,3, AND ACRYLONITRILE WHICH HAS BEEN SEPARATELY PREMILLED AT 330* F., FOR 10 TO 30 MINUTES AND A HARD NORMALLY THERMOPLASTIC RESIN CHOSEN FROM THE CLASS CONSISTING OF POLYSTYRENE, POLYVINYL CHLORIDE, A COPOLYMER OF STYRENE AND ISOBUTYLENE, AND A COPOLYMER OF STYRENE AND ACRYLONITRILE, SAID THERMOPLASTIC RESIN COMPRISING FROM 25 TO 90% BY WEIGHT AND SAID RUBBER COPOLYMER CORRESPONDINGLY COMPRISING FROM 75 TO 10% OF THE RUBBERRESIN MIXTURE.
Claim 2
Dependent Claim
83 words
A COMPOSITE THERMOPLASTIC HOMOGENEOUS COMPOSITION CONSISTING OF A MIXTURE OF A NORMALLY RUBBERY COPOLYMER OF BUTADIENE-1,3, AND ACRYLONITRILE WHICH HAS BEEN SEPARATELY PREMILLED AT 330* F., FOR 10 TO 30 MINUTES AND A HARD NORMALLY THERMOPLASTIC RESIN CHOSEN FROM THE CLASS CONSISTING OF POLYSTYRENE, POLYVINYL CHLORIDE, A COPOLYMER OF STYRENE AND ISOBUTYLENE, AND A COPOLYMER OF STYRENE AND ACRYLONITRILE, SAID THERMOPLASTIC RESIN COMPRISING FROM 25 TO 90% BY WEIGHT AND SAID RUBBER COPOLYMER CORRESPONDINGLY COMPRISING FROM 75 TO 10% OF THE RUBBERRESIN MIXTURE.
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) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |