US2999841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized elastomer compositions
Assignee: EIDP Inc
•
Filing: 1958-12-24
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Granted: 1961-09-12
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Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 Csendes Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:40
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/05; C08K5/053; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A CURED ELASTOMER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER AND SYNTHETIC RUBBER MADE FROM CONJUGATED DIENES, SAID ELASTOMER HAVING INCORPORATED THEREIN A STABILIZING AMOUNT OF A PHENOLIC ANTIOXIDANT AND A NON-POLYMERIC HYDROCARBON POLYOL, SAID POLYOL BEING A SATURATED ACYLIC ALIPHATIC COMPOUND CONTAINING 3 TO 6 CARBON ATOMS AND HAVING AT LEAST 3 ALCOHOLIC HYDROXYL GROUPS AS ITS SOLE SUBSTITUENTS, EACH OF SAID HYDROXYL GROUPS BEING AN A FIFFERENT CARBON ATOM, SAID PHENOLIC ANTIOXIDANT AND SAID POLYOL BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF 0.1 TO 5 PARTS BY WEIGHT PER 100 PARTS OF SAID ELASTOMER.
Claim 2
Dependent Claim
99 words
A CURED ELASTOMER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER AND SYNTHETIC RUBBER MADE FROM CONJUGATED DIENES, SAID ELASTOMER HAVING INCORPORATED THEREIN A STABILIZING AMOUNT OF A PHENOLIC ANTIOXIDANT AND A NON-POLYMERIC HYDROCARBON POLYOL, SAID POLYOL BEING A SATURATED ACYLIC ALIPHATIC COMPOUND CONTAINING 3 TO 6 CARBON ATOMS AND HAVING AT LEAST 3 ALCOHOLIC HYDROXYL GROUPS AS ITS SOLE SUBSTITUENTS, EACH OF SAID HYDROXYL GROUPS BEING AN A FIFFERENT CARBON ATOM, SAID PHENOLIC ANTIOXIDANT AND SAID POLYOL BEING PRESENT IN AN AMOUNT WITHIN THE RANGE OF 0.1 TO 5 PARTS BY WEIGHT PER 100 PARTS OF SAID ELASTOMER.
References Cited (Backward Citations)
US2734881A
Cited
US2721185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |