US2695307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of manufacturing polymerized organic silicon compounds
Assignee: UCB SA
•
Filing: 1948-09-13
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Granted: 1954-11-23
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Expires: 1968-09-13
Abstract
No abstract record available.
Inventors
- 👤 Guillissen Clement Joseph
- 👤 Gancberg Abram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:26
CPC Classifications
C; C08; C08G; C08G77/00; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A PROCESS FOR PRODUCING A POLYMERIZED ORGANIC SILICON COMPOUND COMPRISING REACTING IN AN ANHYDROUS MEDIUM AT AN ELEVATED TEMPERATURE, AN ORGANO-HALO-SILANE WITH AN ORGANO-OXY-SILANE TO LIBERATE AN ORGANIC HALIDE IN THE PRESENCE OF A METAL HALIDE CATALYST SELECTED FROM THE METALS IN GROUP II AND III OF PERIODS 1-4 OF THE PERIODIC TABLE OF THE ELEMENTS, AND TO POLYMERIZE THE RESULTING PRODUCT TO FORM A VISCOUS LIQUID POLYMER IN WHICH AT LEAST TWO SILICON ATOMS ARE CONNECTED BY AN OXYGEN ATOM, SAID ORGANO-HALO-SILANE HAVING THE GENERAL FORMULA RNSIXM AND SAID ORGANO-OXY-SILANE HAVING THE GENERAL FORMULA R''NSI(OR")M, WHEREIN R, R'' AND R" ARE RADICALS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ALICYCLIC HYDROCARBONS OF NOT MORE THAN TEN CARBON ATOMS AND WHEREIN R" MAY ALSO BE A HYDROGEN ATOM, X IS A HALOGEN ATOM, AND M AND N ARE INTEGERS 1 TO 3 AND 3 TO 1, RESPECTIVELY, THE SUM THEREOF BEING 4.
Claim 2
Dependent Claim
154 words
A PROCESS FOR PRODUCING A POLYMERIZED ORGANIC SILICON COMPOUND COMPRISING REACTING IN AN ANHYDROUS MEDIUM AT AN ELEVATED TEMPERATURE, AN ORGANO-HALO-SILANE WITH AN ORGANO-OXY-SILANE TO LIBERATE AN ORGANIC HALIDE IN THE PRESENCE OF A METAL HALIDE CATALYST SELECTED FROM THE METALS IN GROUP II AND III OF PERIODS 1-4 OF THE PERIODIC TABLE OF THE ELEMENTS, AND TO POLYMERIZE THE RESULTING PRODUCT TO FORM A VISCOUS LIQUID POLYMER IN WHICH AT LEAST TWO SILICON ATOMS ARE CONNECTED BY AN OXYGEN ATOM, SAID ORGANO-HALO-SILANE HAVING THE GENERAL FORMULA RNSIXM AND SAID ORGANO-OXY-SILANE HAVING THE GENERAL FORMULA R''NSI(OR")M, WHEREIN R, R'' AND R" ARE RADICALS SELECTED FROM THE GROUP CONSISTING OF ALKYL, ARYL AND ALICYCLIC HYDROCARBONS OF NOT MORE THAN TEN CARBON ATOMS AND WHEREIN R" MAY ALSO BE A HYDROGEN ATOM, X IS A HALOGEN ATOM, AND M AND N ARE INTEGERS 1 TO 3 AND 3 TO 1, RESPECTIVELY, THE SUM THEREOF BEING 4.
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) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |