US2953543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized silicone elastomers and process for their production
Assignee: Union Carbide Corp
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Filing: 1958-06-19
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Granted: 1960-09-20
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Expires: 1978-06-19
Abstract
No abstract record available.
Inventors
- 👤 Roscoe A Pike
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:39
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A PROCESS FOR PRODUCING STABILIZED SILICONE ELASTOMERS WHICH COMPRISES FORMING A CURABLE GUM COMPOUND CONTAINING AN ORGANOPOLYSILOXANE GUM CONTAINING FROM 1.95 TO 2.05 MONOVALENT HYDROCARBON GROUPS PER SILICON ATOM, A HYDROXYL-SUBSTITUTED AROMATIC COMPOUND AS AN ANTIOXIDANT AND A DIACYL PEROXIDE CURING AGENT IN AN AMOUNT BY WEIGHT GREATER THAN THE AMOUNT OF THE ANTIOXIDANT AND HEATING THE CURABLE GUM COMPOUND TO A TEMPERATURE SUFFICIENTLY ELEVATED TO CURE THE GUM COMPOUND TO PRODUCE AN ELASTOMER.
Claim 2
Dependent Claim
74 words
A PROCESS FOR PRODUCING STABILIZED SILICONE ELASTOMERS WHICH COMPRISES FORMING A CURABLE GUM COMPOUND CONTAINING AN ORGANOPOLYSILOXANE GUM CONTAINING FROM 1.95 TO 2.05 MONOVALENT HYDROCARBON GROUPS PER SILICON ATOM, A HYDROXYL-SUBSTITUTED AROMATIC COMPOUND AS AN ANTIOXIDANT AND A DIACYL PEROXIDE CURING AGENT IN AN AMOUNT BY WEIGHT GREATER THAN THE AMOUNT OF THE ANTIOXIDANT AND HEATING THE CURABLE GUM COMPOUND TO A TEMPERATURE SUFFICIENTLY ELEVATED TO CURE THE GUM COMPOUND TO PRODUCE AN ELASTOMER.
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) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |