US2993023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber composition comprising a conjugated diolefin polymer and an ether of an alkanol and a phenol
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1953-05-04
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Granted: 1961-07-18
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Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Emert S Pfau
- 👤 Gilbert H Swart
- 👤 Kermit V Weinstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:05
CPC Classifications
B; B60; B60C; B60C1/00; C; C08; C08K; C08K5/00; C08K5/04; C08K5/06; Y; Y10; Y10S; Y10S152/00; Y10S152/905
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
A RUBBER COMPOUND COMPRISING A HYDROCARBON POLYMERIZATION PRODUCT OF A CONJUGATED DIOLEFINE OF LESS THAN 8 CARBON ATOMS WHICH POLYMERIZATION PRODUCT IS COMPATIBLE WITH HYDROCARBON OILS AND IS CHARACTERIZED BY HAVING A "COMPUTED MOONEY" VISCOSITY OF AT LEAST 90, AND A COMPATIBLE PLASTICIZER, THE MAJOR PORTION OF WHICH IS AN ETHER OF AN ALKYL ALCOHOL NOT IN EXCESS OF 8 CARBON ATOMS AND OF A PHENOL FOUND IN CASHEW NUT SHELL OIL HAVING A LONG CHAIN ALIPHATIC SUBSTITUENT CONNECTED TO THE BENZENE NUCLEUS BY CARBON TO CARBON BONDS, THE TOTAL AMOUNT OF PLASTICIZING MATERIAL IN SAID COMPOUND BEING AT LEAST 30% OF THE WEIGHT OF SAID POLYMERIZATION PRODUCT.
References Cited (Backward Citations)
US2284369A
Cited
US2409277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |