US3558740A
Expired / Lapsed
US
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High impact strength polymers
Assignee: Dynamit Nobel AG
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Filing: 1967-11-22
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Granted: 1971-01-26
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Expires: 1987-11-22
Abstract
Abstract BLEND OF A POLYPHENYLENE OXIDE POLYMER AND A POLYETHER WITH DIPHENYLSULFONE- AND BISPHENOL A - UNITS IN PROPORTION OF ABOUT 5 TO 60 WEIGHT PRECENT OF THE LATTER TO PRODUCE A MOLDABLE PRODUCT HAVING A SYNERGISTICALLY HIGHER IMPACT STRENGTH THAN EITHER COMPONENT ALONE.
Inventors
- 👤 Erich Behr
- 👤 Johannes Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:57
CPC Classifications
C; C08; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L81/00; C08L81/06; Y; Y10; Y10S; Y10S525/00; Y10S525/905; Y10S525/906
Claims Analysis
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |