US3238157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a filled cellular silicone elastomer and cellular product obtained thereby
Assignee: Union Carbide Corp
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Filing: 1963-08-02
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Granted: 1966-03-01
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Expires: 1983-08-02
Abstract
No abstract record available.
Inventors
- 👤 Frederick A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:44
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/26; C08J9/28; C08J2201/00; C08J2201/04; C08J2201/042; C08J2383/00; C08J2383/04; Y; Y10; Y10S; Y10S521/00; Y10S521/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A COMPOSITION OF MATTER CURABLE TO A SILICONE ELASTOMER WHICH COMPRISES IN ADMIXTURE, (1) AN ORGANOPOLYSILOXANE GUM, (2) FROM 20 TO 50 PARTS BY WEIGHT OF A REINFORCING FILLER PER 100 PARTS BY WEIGHT OF SAID GUM, SAID FILLER BEING SOLID, WATER-INSOLUBLE AND NON-VOLATILE AT TEMPERATURES BELOW 500*F., AND (3) FROM 10 TO 700 PARTS BY WEIGHT OF A PARTICULATE, SOLID, VOID-PRODUCING MATTER PER 100 COMBINED PARTS BY WEIGHT OF SAID GUM AND SAID FILLER, SAID PARTICULATE MATTER BEING SOLID AT THE CURING TEMPERATURE OF SAID GUM AND BEING INSOLUBLE IN SAID GUM AND NON-REACTIVE THEREWITH, SAID PARTICULATE MATTER BEING SELECTED FROM THE CLASS CONSISTING OF (A) SOLID MATTER WHICH IS ESSENTIALLY COMPLETELY SOLUBLE IN WATER AND (B) SOLID MATTER WHICH IS ESSENTIALLY COMPLETELY VOLATILIZABLE AT A TEMPERATURE ABOVE THE CURING TEMPERATURE OF SAID GUM AND BELOW ABOUT 500*F.
Claim 2
Dependent Claim
139 words
A COMPOSITION OF MATTER CURABLE TO A SILICONE ELASTOMER WHICH COMPRISES IN ADMIXTURE, (1) AN ORGANOPOLYSILOXANE GUM, (2) FROM 20 TO 50 PARTS BY WEIGHT OF A REINFORCING FILLER PER 100 PARTS BY WEIGHT OF SAID GUM, SAID FILLER BEING SOLID, WATER-INSOLUBLE AND NON-VOLATILE AT TEMPERATURES BELOW 500*F., AND (3) FROM 10 TO 700 PARTS BY WEIGHT OF A PARTICULATE, SOLID, VOID-PRODUCING MATTER PER 100 COMBINED PARTS BY WEIGHT OF SAID GUM AND SAID FILLER, SAID PARTICULATE MATTER BEING SOLID AT THE CURING TEMPERATURE OF SAID GUM AND BEING INSOLUBLE IN SAID GUM AND NON-REACTIVE THEREWITH, SAID PARTICULATE MATTER BEING SELECTED FROM THE CLASS CONSISTING OF (A) SOLID MATTER WHICH IS ESSENTIALLY COMPLETELY SOLUBLE IN WATER AND (B) SOLID MATTER WHICH IS ESSENTIALLY COMPLETELY VOLATILIZABLE AT A TEMPERATURE ABOVE THE CURING TEMPERATURE OF SAID GUM AND BELOW ABOUT 500*F.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |