US3143519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone rubbers containing aliphatic diketones, keto alcohols and ketone acid esters
Assignee: Wacker Chemie AG
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Filing: 1960-06-17
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Granted: 1964-08-04
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Expires: 1980-06-17
Abstract
No abstract record available.
Inventors
- 👤 Nitzsche Siegfried
- 👤 Wick Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:16
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/07; C08K5/16; C08K5/32; C08K5/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A SLICONE RUBBER STOCK CONSISTING ESSENTIALLY OF 100 PARTS BY WEIGHT OF AN ESSENTIALLY DIORGANO-SILOXANE POLYMER OF THE UNIT FORMULA RR''SIO WHERE EACH R IS A MONOVALENT RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON RADICALS AND HALOGENATED HYDROCARBON RADICALS AND EACH R'' IS AN ANLKYL RADICAL OF LESS THAN 7 CARBON ATOMS, 10-200 PARTS BY WEIGHT OF A FILTER AND UP TO 5 PARTS BY WEIGHT ORGANIC PEROXIDE VULCANIZING AGENT AND CONTAINING .001 TO 1% BY WEIGHT BASED ON THE SILICONE RUBBER STOCK OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC DIKETONES, KETO ALCOHOLS AND KETONE ACID ESTERS.
Claim 2
Dependent Claim
101 words
A SLICONE RUBBER STOCK CONSISTING ESSENTIALLY OF 100 PARTS BY WEIGHT OF AN ESSENTIALLY DIORGANO-SILOXANE POLYMER OF THE UNIT FORMULA RR''SIO WHERE EACH R IS A MONOVALENT RADICAL SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON RADICALS AND HALOGENATED HYDROCARBON RADICALS AND EACH R'' IS AN ANLKYL RADICAL OF LESS THAN 7 CARBON ATOMS, 10-200 PARTS BY WEIGHT OF A FILTER AND UP TO 5 PARTS BY WEIGHT ORGANIC PEROXIDE VULCANIZING AGENT AND CONTAINING .001 TO 1% BY WEIGHT BASED ON THE SILICONE RUBBER STOCK OF AN ADDITIVE SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC DIKETONES, KETO ALCOHOLS AND KETONE ACID ESTERS.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |