US2809180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable organopolysiloxane compositions having hydrolyzed alkyl trihalogenosilane filler and cured products of same
Assignee: General Electric Co
•
Filing: 1954-11-01
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Granted: 1957-10-08
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Expires: 1974-11-01
Abstract
No abstract record available.
Inventors
- 👤 George V Browning
- 👤 Arthur M Bueche
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:42
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/24; C08G77/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A CURABLE COMPSOITION OF MATTER COMPRISING (1) 1.0 PARTS BY WEIGHT OF AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE, THE ORGANO GROUPS OF SAID ORGANOPOLYSILOXANE BEING SELECTED FROM THE CLASS CONSISTING OF HYDROCARBON RADICALS AND CHOROPHENYL RADICALS, AND (2) FROM 0.1 TO 1.0 PART BY WEIGHT OF A FILLER FOR (1) COMPRISING A SOLID, FINELY DIVIDED ALKYL POLYSILOXANE OBTAINED BY EFFECTING HYDROLYSIS OF AN ALKYL TRIHALOGENOSILANE IN A WATER-IN-OIL EMULSION IN WHICH THE OIL COMPONENT IS A HYDROCARBON OIL HAVEING A VISCOSITY OF FROM ABOUT 25 TO 3000 CENTIPOISES, AND THEREAFTER ISOLATING THE FORMED ALKYL POLYSILOXANE FINELY DIVIDED FILLER, SAID FILLER HAVING A SURFACE AREA OF FROM 75 TO 350 SQUARE METERS PER GRAM.
Claim 2
Dependent Claim
116 words
A CURABLE COMPSOITION OF MATTER COMPRISING (1) 1.0 PARTS BY WEIGHT OF AN ORGANOPOLYSILOXANE CONVERTIBLE TO THE CURED, SOLID, ELASTIC STATE, THE ORGANO GROUPS OF SAID ORGANOPOLYSILOXANE BEING SELECTED FROM THE CLASS CONSISTING OF HYDROCARBON RADICALS AND CHOROPHENYL RADICALS, AND (2) FROM 0.1 TO 1.0 PART BY WEIGHT OF A FILLER FOR (1) COMPRISING A SOLID, FINELY DIVIDED ALKYL POLYSILOXANE OBTAINED BY EFFECTING HYDROLYSIS OF AN ALKYL TRIHALOGENOSILANE IN A WATER-IN-OIL EMULSION IN WHICH THE OIL COMPONENT IS A HYDROCARBON OIL HAVEING A VISCOSITY OF FROM ABOUT 25 TO 3000 CENTIPOISES, AND THEREAFTER ISOLATING THE FORMED ALKYL POLYSILOXANE FINELY DIVIDED FILLER, SAID FILLER HAVING A SURFACE AREA OF FROM 75 TO 350 SQUARE METERS PER GRAM.
References Cited (Backward Citations)
US2258218A
Cited
US2442196A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |