US3786105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyphenylene oxide and ethylene/styrene copolymer blend composition
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1972-04-24
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Granted: 1974-01-15
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Expires: 1992-04-24
Abstract
Abstract A COMPOSITION COMPRISING A MIXTURE OF 99 TO 40% BY WEIGHT OF A POLYPHENYLENE OXIDE AND 1 TO 60% BY WEIGHT OF AN ETHYLENE-STYRENE COPOLYMER. THE COMPOSITION DISPLAYS EXCELLENT PROCESSABILITY AND IMPACT RESISTANCE, WHILE RETAINING A HIGH SOFTENING POINT AND A HIGH NEAT DISTORTION TEMPERATURE WHICH ARE INHERENT TO THE POLYPHENYLENE OXIDE, AND DOSE NOT CAUSE PHASE SEPARATION.
Inventors
- 👤 S Nakashio
- 👤 K Yoshikawa
- 👤 T Takemura
- 👤 K Ota
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:35
CPC Classifications
C; C08; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0807; C08L23/0838; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |