US3131161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silicone rubber containing an epoxide compound
Assignee: Wacker Chemie AG
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Filing: 1961-02-13
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Granted: 1964-04-28
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Expires: 1981-02-13
Abstract
No abstract record available.
Inventors
- 👤 Nitzsche Siegfried
- 👤 Wick Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:05
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/02; C08G77/04; C08G77/22; C08G77/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A SILICONE RUBBER STOCK CONSISTING ESSENTIALLY OF (A) 100 PARTS BY WEIGHT OF A LINEAR DIORGANOSILOXANE POLYMER WHEREIN THE ORGANIC SUBSITUENTS BONDED TO SILICON ARE MONOVALENT RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON RADICALS AND HALOGENOHYDROCARBON RADICALS, SAID POLYMERS HAVING A VISCOSITY OF AT LEAST 50,000 CS. AT 25*C., (B) 20 TO 200 PARTS BY WEIGHT OF A REINFORCING INORGANIC FILLER HAVING A MAXIMUM AVERAGE PARTICLE SIZE OF 1 MICRON AN A MINIMUM SURFACE AREA OF 100 SQUARE METERS PER GRAM, AND (C) 0.5 TO 10 PARTS BY WEIGHT OF AN EPOXIDE COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) SILANES OF THE FORMULA ABR''CSIX4-B-C WHEREIN EACH A IS AN ORGANIC RADICAL BONDED TO SILICON BY C-SI LINKAGE AND CONTAINING ONE OR MORE
Claim 2
Dependent Claim
124 words
A SILICONE RUBBER STOCK CONSISTING ESSENTIALLY OF (A) 100 PARTS BY WEIGHT OF A LINEAR DIORGANOSILOXANE POLYMER WHEREIN THE ORGANIC SUBSITUENTS BONDED TO SILICON ARE MONOVALENT RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON RADICALS AND HALOGENOHYDROCARBON RADICALS, SAID POLYMERS HAVING A VISCOSITY OF AT LEAST 50,000 CS. AT 25*C., (B) 20 TO 200 PARTS BY WEIGHT OF A REINFORCING INORGANIC FILLER HAVING A MAXIMUM AVERAGE PARTICLE SIZE OF 1 MICRON AN A MINIMUM SURFACE AREA OF 100 SQUARE METERS PER GRAM, AND (C) 0.5 TO 10 PARTS BY WEIGHT OF AN EPOXIDE COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) SILANES OF THE FORMULA ABR''CSIX4-B-C WHEREIN EACH A IS AN ORGANIC RADICAL BONDED TO SILICON BY C-SI LINKAGE AND CONTAINING ONE OR MORE
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |