Patent US2989491A successfully refreshed from Google Patents.
US2989491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising polyesteramide, epoxy resin, and isocyanate modified cellulose acetate and wire coated therewith
Assignee: Westinghouse Electric Corp
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Filing: 1958-06-05
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Granted: 1961-06-20
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Expires: 1978-06-05
Abstract
No abstract record available.
Inventors
- 👤 Frank A Sattler
- 👤 Floyd F Trunzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:06
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/64; C08G18/6484; C08L; C08L63/00; C09; C09D; C09D175/00; C09D177/00; C09D177/12; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/31504; Y10T428/31511; Y10T428/31529
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
A RESIN COMPOSITION COMPRISING FROM 99 TO 50 PARTS BY WEIGHT OF A RESINOUS COPOLYMER DERIVED BY ADMIXING AND HEATING OF (A) 60% TO 90% BY WEIGHT OF A POLYESTERAMIDE DERIVED BY REACTING (A) AT LEAST ONE ACIDIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID, AROMATIC DICARBOXYLIC ACIDS, ANHYDRIDES THEREOF, AND DIALKYL ESTERS OF AROMATIC DICARBOXYLIC ACIDS, (B) AT LEAST ONE ACIDIC COMPOUND HAVING NO ETHYLENIC UNSATURATION SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC DICARBOXYLIC ACIDS AND THEIR ANHYDRIDES, (C) AT LEAST ONE PRIMARY AMINE ALCOHOL SELECTED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE AND MONOISOPROPANOLAMINE. (D) AT LEAST ONE POLYHYDRIC ALCOHOL, NOT OVER 75 MOL PERCENT OF THE POLYHYDRIC ALCOHOL HAVING MORE THAN THREE REACTIVE HYDROXYL GROUPS, (B) FROM 40% TO 10% BY WEIGHT OF THE REACTION PRODUCT OF (A) FROM 70% TO 25% BY WEIGHT OF AN ISOCYANATE SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF TOLYLENE DIISOCYANATE, DIANISIDINE DIISOCYANATE, METHYLENE BIS (P-PHENYLENE ISOCYANATE) 3,3'' BITOLYLENE 4,4'' DIISOCYANATE AND (B) CELLULOSE ACETATE, AND FROM 1 TO 50 PARTS BY WEIGHT OF THE REACTION PRODUCT OF (A) A POLYHYDRIC PHENOL HAVING AT LEAST TWO PHENOLIC HYDROXYL GROUPS PER MOLECULE AND (B) AN EPIHALOHYDRIN.
Claim 2
Dependent Claim
200 words
A RESIN COMPOSITION COMPRISING FROM 99 TO 50 PARTS BY WEIGHT OF A RESINOUS COPOLYMER DERIVED BY ADMIXING AND HEATING OF (A) 60% TO 90% BY WEIGHT OF A POLYESTERAMIDE DERIVED BY REACTING (A) AT LEAST ONE ACIDIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC ETHYLENICALLY UNSATURATED DICARBOXYLIC ACID, AROMATIC DICARBOXYLIC ACIDS, ANHYDRIDES THEREOF, AND DIALKYL ESTERS OF AROMATIC DICARBOXYLIC ACIDS, (B) AT LEAST ONE ACIDIC COMPOUND HAVING NO ETHYLENIC UNSATURATION SELECTED FROM THE GROUP CONSISTING OF ALIPHATIC DICARBOXYLIC ACIDS AND THEIR ANHYDRIDES, (C) AT LEAST ONE PRIMARY AMINE ALCOHOL SELECTED FROM THE GROUP CONSISTING OF MONOETHANOLAMINE AND MONOISOPROPANOLAMINE. (D) AT LEAST ONE POLYHYDRIC ALCOHOL, NOT OVER 75 MOL PERCENT OF THE POLYHYDRIC ALCOHOL HAVING MORE THAN THREE REACTIVE HYDROXYL GROUPS, (B) FROM 40% TO 10% BY WEIGHT OF THE REACTION PRODUCT OF (A) FROM 70% TO 25% BY WEIGHT OF AN ISOCYANATE SELECTED FROM AT LEAST ONE OF THE GROUP CONSISTING OF TOLYLENE DIISOCYANATE, DIANISIDINE DIISOCYANATE, METHYLENE BIS (P-PHENYLENE ISOCYANATE) 3,3'' BITOLYLENE 4,4'' DIISOCYANATE AND (B) CELLULOSE ACETATE, AND FROM 1 TO 50 PARTS BY WEIGHT OF THE REACTION PRODUCT OF (A) A POLYHYDRIC PHENOL HAVING AT LEAST TWO PHENOLIC HYDROXYL GROUPS PER MOLECULE AND (B) AN EPIHALOHYDRIN.
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) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |