Patent US741268A successfully refreshed from Google Patents.
US3228908A
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Cured polymer compositions
Assignee: Cabot Corp
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Filing: 1962-10-19
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Granted: 1966-01-11
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Expires: 1982-10-19
Abstract
No abstract record available.
Inventors
- 👤 James C Mackenzie
- 👤 Donald B Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:44
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K5/16; C08K5/32; C08K5/33; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A PROCESS FOR STRENGTHENING A MATERIAL CHOSEN FROM THE GROUP CONSISTING OF THE HOMOPOLYMERS OF ETHYLENE AND PROPYLENE, COPOLYMERS THEREOF AND MIXTURES THEREOF, TO PRODUCE A MATERIAL HAVING EXCEPTIONAL FLEXIBILITY AND STRENGTH, WHICH COMPRISES COMPOUNDING THE SUBSTANTIALLY SATURATED POLYMER MATERIAL WITH AN AMOUNT BETWEEN ABOUT 0.1% AND ABOUT 10% BY WEIGHT OF THE POLYMER OF A CURING COMPOUND CHOSEN FROM THE GROUP CONSISTING OF P-DINITROSOBENZENE, POLY(P-DINITROSOBENZENE), M-DINITROSOBENZENE ADN MIXTURES THEREOF AND CURING THE COMPOUND AT A TEMPERATURE ABOVE 200*C.
Claim 2
Dependent Claim
79 words
A PROCESS FOR STRENGTHENING A MATERIAL CHOSEN FROM THE GROUP CONSISTING OF THE HOMOPOLYMERS OF ETHYLENE AND PROPYLENE, COPOLYMERS THEREOF AND MIXTURES THEREOF, TO PRODUCE A MATERIAL HAVING EXCEPTIONAL FLEXIBILITY AND STRENGTH, WHICH COMPRISES COMPOUNDING THE SUBSTANTIALLY SATURATED POLYMER MATERIAL WITH AN AMOUNT BETWEEN ABOUT 0.1% AND ABOUT 10% BY WEIGHT OF THE POLYMER OF A CURING COMPOUND CHOSEN FROM THE GROUP CONSISTING OF P-DINITROSOBENZENE, POLY(P-DINITROSOBENZENE), M-DINITROSOBENZENE ADN MIXTURES THEREOF AND CURING THE COMPOUND AT A TEMPERATURE ABOVE 200*C.
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |