US3267036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing fluid silicone compositions and a cerium-containing adduct therefor
Assignee: Individual
•
Filing: 1963-12-31
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Granted: 1966-08-16
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Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 Hayward R Baker
- 👤 Jacques G O'rear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:11
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/04; C08G77/38; C08G77/382; C08G77/398
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
138 words
A METHOD OF PREPARING A CERIUM METHYLHYDROGEN POLYSILOXANE ADDUCT WHICH COMPRISES PREPARING A SOLUTION IN BENZENE OF THE DISPROPORTIONATION PRODUCTS OF CEROUS ACETYLACETONATE MONOHYDRATE BY HEATING FROM ABOUT 3 TO 8 MOLES OF SAID MONOHYDRATE IN SOLUTION IN AN EXCESS OF BENZENE UNDER REFLUX AND BUBBLING OF AIR THEREINTO UNTIL THE RESULTING BENZENE SOLUTION IS WINE-RED IN COLOR, COMBINING SAID RESULTING BENZENE SOLUTION OF DISPROPORTIONATION PRODUCTS WITH A BENZENE SOLUTION OF A METHYLHYDROGEN POLYSILOXANE HAVING FROM ABOUT 0.5 TO 1.67% BY WEIGHT OF SILANE HYDROGEN AND IN PROPORTIONS TO YIELD A RESULTANT BENZENE SOLUTION WHICH CONTAINS FROM ABOUT 3 TO 8 ATOMS OF CERIUM PER MOLE OF SAID METHYLHYDROGEN POLYSILOXANE, AND HEATING SAID RESULTING BENZENE SOLUTION UNDER REFLUX FOR ABOUT ONE HOUR WHILE BUBBLING AIR THEREINTO AT A RATE SUFFICIENT TO MAINTAIN THE CERIUM IN THE CERIC STATE.
Claim 2
Independent Claim
138 words
A METHOD OF PREPARING A CERIUM METHYLHYDROGEN POLYSILOXANE ADDUCT WHICH COMPRISES PREPARING A SOLUTION IN BENZENE OF THE DISPROPORTIONATION PRODUCTS OF CEROUS ACETYLACETONATE MONOHYDRATE BY HEATING FROM ABOUT 3 TO 8 MOLES OF SAID MONOHYDRATE IN SOLUTION IN AN EXCESS OF BENZENE UNDER REFLUX AND BUBBLING OF AIR THEREINTO UNTIL THE RESULTING BENZENE SOLUTION IS WINE-RED IN COLOR, COMBINING SAID RESULTING BENZENE SOLUTION OF DISPROPORTIONATION PRODUCTS WITH A BENZENE SOLUTION OF A METHYLHYDROGEN POLYSILOXANE HAVING FROM ABOUT 0.5 TO 1.67% BY WEIGHT OF SILANE HYDROGEN AND IN PROPORTIONS TO YIELD A RESULTANT BENZENE SOLUTION WHICH CONTAINS FROM ABOUT 3 TO 8 ATOMS OF CERIUM PER MOLE OF SAID METHYLHYDROGEN POLYSILOXANE, AND HEATING SAID RESULTING BENZENE SOLUTION UNDER REFLUX FOR ABOUT ONE HOUR WHILE BUBBLING AIR THEREINTO AT A RATE SUFFICIENT TO MAINTAIN THE CERIUM IN THE CERIC STATE.
Claim 3
Dependent Claim
128 words
A METHOD OF STABILIZING A LIQUID POLYSILOXANE OF THE GROUP CONSISTING OF LIQUID METHYL-METHYLPHENYLMETHYL CHLOROPHENYL- AND METHYLPHENYL CHLOROPHENYL POLYSILOXANES WHICH COMPRISES COMBINING A LIQUID POLYSILOXANE OF THE AFORESAID GROUP WITH AN ADDUCT AS PREPARED IN CLAIM 1 WHICH IS IN SOLUTION IN A PORTION OF THE SAME LIQUID POLYSILOXANE IN PROPORTIONS TO FORM A FLUID MIXTURE WHICH CONTAINS FROM ABOUT 0.01 TO 0.05% BY WEIGHT OF CERIUM ATOMS, RAPIDLY HEATING SAID FLUID MIXTURE TO A TEMPERATURE IN THE RANGE OF 270 TO 280*C. WHILE BUBBLING AIR THEREINTO AT A RATE SUFFICIENT TO MAINTAIN THE CERIUM IN THE CERIC STATE AND OXIDIZE SILANE HYDROGEN THEREIN, AND CONTINUING THE HEATING AT SAID TEMPERATURE AND THE BUBBLING OF AIR THEREINTO UNTIL THE RESULTING FLUID IS CLEAR AND FREE FROM SILANE HYDROGEN.
References Cited (Backward Citations)
US2465296A
Cited
US3008901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |