Patent US4813337A successfully refreshed from Google Patents.
Patent US2916461A successfully refreshed from Google Patents.
US2916461A
Expired / Lapsed
US
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Novel organosilicon compositions
Assignee: General Electric Co
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Filing: 1956-04-30
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Granted: 1959-12-08
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Expires: 1976-04-30
Abstract
No abstract record available.
Inventors
- 👤 Karl W Krantz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:47
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C08L83/06; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C08G; C08G77/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663; Y10T442/00; Y10T442/20; Y10T442/2164; Y10T442/218; Y10T442/2361
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A COMPOSITION OF MATTER INSOLUBLE IN BENZENE BUT SOLUBLE IN WATER IN ALL PROPORTIONS OBTAINED BY (1) INTERACTING ETHYLENE GLYCOL IN THE PRESENCE OF AN ACIDIC CATALYST WITH A MIXTURE CONTAINING FROM 50 TO 100 MOL PERCENT OF METHYLTRIISOPROPOXYSILANE AND THE MOL PERCENT TRIMETHYLISOPROPOXYSILANE, THE SUM OF THE MOL PERCENTS OF THE METHYLTRIIOPROPOXYSILANE AND THE TRIMETHYLISOPROPOXYSILANE BEING EQUAL TO 100 MOL PERCENT, THERE BEING PRESENT AT LEAST 1.5 CARBON-BONDED HYDROXY GROUPS OF THE ETHYLENE GLYCOL FOR EACH EQUAVALENT OF SILICON-BONDED ISOPROPOXY GROUP IN THE MIXTURE OF METHYLISOPROPOXY SILANES, AND (2) THEREAFTER HEATING THE MIXTURE OF INGREDIENTS AT A TEMPERATURE BELOW 100* C. WHILE AT THE SAME TIME REMOVING LIBERATED ISOPROYL ALCOHOL.
Claim 2
Dependent Claim
111 words
A COMPOSITION OF MATTER INSOLUBLE IN BENZENE BUT SOLUBLE IN WATER IN ALL PROPORTIONS OBTAINED BY (1) INTERACTING ETHYLENE GLYCOL IN THE PRESENCE OF AN ACIDIC CATALYST WITH A MIXTURE CONTAINING FROM 50 TO 100 MOL PERCENT OF METHYLTRIISOPROPOXYSILANE AND THE MOL PERCENT TRIMETHYLISOPROPOXYSILANE, THE SUM OF THE MOL PERCENTS OF THE METHYLTRIIOPROPOXYSILANE AND THE TRIMETHYLISOPROPOXYSILANE BEING EQUAL TO 100 MOL PERCENT, THERE BEING PRESENT AT LEAST 1.5 CARBON-BONDED HYDROXY GROUPS OF THE ETHYLENE GLYCOL FOR EACH EQUAVALENT OF SILICON-BONDED ISOPROPOXY GROUP IN THE MIXTURE OF METHYLISOPROPOXY SILANES, AND (2) THEREAFTER HEATING THE MIXTURE OF INGREDIENTS AT A TEMPERATURE BELOW 100* C. WHILE AT THE SAME TIME REMOVING LIBERATED ISOPROYL ALCOHOL.
References Cited (Backward Citations)
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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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |