Patent US2982754A successfully refreshed from Google Patents.
US2982754A
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Polyisocyanate-modified polyester of terephthalic or isophthalic acid, and electrical conductor coated therewith
Assignee: SCHENECTADY VARNISH COMPANY Inc
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Filing: 1957-11-08
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Granted: 1961-05-02
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Expires: 1977-11-08
Abstract
No abstract record available.
Inventors
- 👤 Howard E Sheffer
- 👤 John F Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:52
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/4208; C08G18/4211; C08G18/4219; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/20; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/302; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF (1) A POLYMERIC ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF TEREPHTHALIC ACID AND ISOPHTHALIC ACID WITH A MIXTURE OF POLYHYDRIC ALCOHOLS INCLUDING (A) 25 TO 75% BY WEIGHT OF A SATURATED ALIPHATIC POLYHYDRIC ALCOHOL HAVING AT LEAST THREE HYDROXYL GROUPS AND (B) 75 TO 25% BY WEIGHT OF AN A,W ALIPHATIC HYDROCARBON DIOL WHEREIN FROM 20 TO 100% BY WEIGHT OF SAID A,W DIOL HAS 4 TO 5 CARBON ATOMS AND THE BALANCE OF THE A,W DIOL IS ETHYLENE GLYCOL, SAID POLYMERIC ESTER CONTAINING 25 TO 62 EQUIVALENT PERCENT OF SAID ACID, 13 TO 46 EQUIVALENT PERCENT OF SAID ALCOHOL HAVING AT LEAST 3 HYDROXYL GROUPS AND 13 TO 46 EQUIVALENT PERCENT OF SAID HYDROCARBON DIOL AND (2) A POLYISOCYANATE IN AN AMOUNT OF 1 TO 40% BY WEIGHT OF THE TOTAL OF THE POLYESTER AND POLYISOCYANATE.
Claim 2
Dependent Claim
12 words
A COMPOSITION ACCORDING TO CLAIM 9 INCLUDING A CRESOL AS A SOLVENT.
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) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |