US2937230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous reaction products of unsaturated polyesters organopolysiloxanes, and unsaturated monomers and electrical members insulated therewith
Assignee: Westinghouse Electric Corp
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Filing: 1954-05-28
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Granted: 1960-05-17
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Expires: 1974-05-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Dow A Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:56
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/48; C; C08; C08G; C08G63/00; C08G63/68; C08G63/695; C08G63/6954; C08G63/6958; C08G77/00; C08G77/42; C08G77/445; C08L; C08L67/00; C08L67/06; H01B3/30; H01B3/42; H01B3/421; H01B3/425; H01B3/46; H01F; H01F27/00; H01F27/02; H01F27/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A COMPLETELY REACTIVE SYNTHETIC COPOLYMER RESINOUS COMPOSITION CONSISTING OF FROM 50% TO 80% BY WEIGHT OF (A) THE REACTION PRODUCT DERIVED BY HEATING TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 130* TO 200*C. AS SOLE REACTANTS (A) AN ORGANOPOLYSILOXANE HAVING AT LEAST TWO HYDROLYZABLE HYDROCARBONOXY RADICALS PER MOLECULE, ALL THE OTHER ORGANIC GROUPS ON THE SILICON ATOMS BEING HYDROCARBON GROUPS, SAID HYDROCARBONOXY RADICALS BEING LOCATED ON THE TERMINAL SILICON ATOMS OF THE ORGANOPOLYSILOXANE, AND (B) AN UNSATURATED POLYESTER COMPOSITION HAVING AT LEAST AS MANY REACTIVE ALCOHOLIC HYDROXYL GROUPS AS THERE ARE HYDROLYZABLE HYDROCARBONOXY RADICALS ON THE ORGANOPOLYSILOXANE, SAID UNSATURATED POLYESTER BEING SELECTED FROM THE GROUP CONSISTING OF (1) ESTERS OBTAINED
Claim 2
Dependent Claim
111 words
A COMPLETELY REACTIVE SYNTHETIC COPOLYMER RESINOUS COMPOSITION CONSISTING OF FROM 50% TO 80% BY WEIGHT OF (A) THE REACTION PRODUCT DERIVED BY HEATING TO A TEMPERATURE WITHIN THE RANGE OF ABOUT 130* TO 200*C. AS SOLE REACTANTS (A) AN ORGANOPOLYSILOXANE HAVING AT LEAST TWO HYDROLYZABLE HYDROCARBONOXY RADICALS PER MOLECULE, ALL THE OTHER ORGANIC GROUPS ON THE SILICON ATOMS BEING HYDROCARBON GROUPS, SAID HYDROCARBONOXY RADICALS BEING LOCATED ON THE TERMINAL SILICON ATOMS OF THE ORGANOPOLYSILOXANE, AND (B) AN UNSATURATED POLYESTER COMPOSITION HAVING AT LEAST AS MANY REACTIVE ALCOHOLIC HYDROXYL GROUPS AS THERE ARE HYDROLYZABLE HYDROCARBONOXY RADICALS ON THE ORGANOPOLYSILOXANE, SAID UNSATURATED POLYESTER BEING SELECTED FROM THE GROUP CONSISTING OF (1) ESTERS OBTAINED
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) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |