US3027340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dicarboxylic acid modified triglyceride oil-epoxide compositions
Assignee: Celanese Coatings Co
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Filing: 1955-07-19
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Granted: 1962-03-27
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Expires: 1975-07-19
Abstract
No abstract record available.
Inventors
- 👤 John E Masters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:46
CPC Classifications
C; C09; C09D; C09D163/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
THE METHOD OF PRODUCING COATING COMPOSITIONS WHICH COMPRISES FIRST HEATING AN UNSATURATED TRIGYLYCERIDE OIL AND A GLYCIDYL POLYETHER OF A DIHYDRIC PHENOL CONTAINING ALTERNATING GYLCERYL RADICALS AND THE HYDROCARBON RADICALS OF THE PHENOL UNITED BY A CHAIN OF ETHER OXYGEN ATOMS AND HAVING AT LEAST ONE ALCOHOL HYDROXYL GROUPS AND MORE THAN ONE AND UP TO TWO EPOXY GROUPS PER AVERAGE MOLECULE TO A TEMPERATURE OF BETWEEN ABOUT 450 TO 580*F. UNTIL A CLEAR PILL OF THE PRODUCT ON GLASS AT ABOUT ROOM TEMPERATURE IS OBTAINED, ADDING AN ALIPHATIC POLYHYDRIC ALCOHOL AND AT LEAST 1% BY WEIGHT BASED UPON THE TOTAL WEIGHT OF THE COMPOSITION OF A DICARBOXYLIC ACID ANHYDRIDE AND HEATING THE RESULTING MIXTURE TO FORM A HOMOGENEOUS REACTION PRODUCT.
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) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |