US3280056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxide compositions prepared from dimeric unsaturated higher fatty acids
Assignee: Celanese Coatings Co
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Filing: 1962-06-19
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Granted: 1966-10-18
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Expires: 1982-06-19
Abstract
No abstract record available.
Inventors
- 👤 John E Masters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:27
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/12; C08G59/18; C08G59/40; C08G59/42; C08G59/4207
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
82 words
THE METHOD OF FORMING EPOXIDE TERMINATED RESINS WHICH COMPRISES REACTING A DIMERIC UNSATURATED HIGHER FATTY ACID WITH AN EXCESS OF A POLYEPOXIDE HAVING A PLURALITY OF EPOXIDE GROUPS TO EFFECT REACTION OF CARBOXYLIC ACID GROUPS OF THE DIMERIC ACID WITH ONLY PART OF THE EPOXIDE GROUPS OF THE POLYEPOXIDES AT TEMPERATURES WITHIN THE RANGE OF AROUND 110-160*C. TO FORM A RESIN CONTAINING REACTIVE EPOXIDE GROUPS, THE POLYEPOXIDE BEING REACTED WITH THE ACIDS IN THE RATIO OF ABOUT 4:3 MOLS TO 6:3 MOLS.
Claim 2
Independent Claim
82 words
THE METHOD OF FORMING EPOXIDE TERMINATED RESINS WHICH COMPRISES REACTING A DIMERIC UNSATURATED HIGHER FATTY ACID WITH AN EXCESS OF A POLYEPOXIDE HAVING A PLURALITY OF EPOXIDE GROUPS TO EFFECT REACTION OF CARBOXYLIC ACID GROUPS OF THE DIMERIC ACID WITH ONLY PART OF THE EPOXIDE GROUPS OF THE POLYEPOXIDES AT TEMPERATURES WITHIN THE RANGE OF AROUND 110-160*C. TO FORM A RESIN CONTAINING REACTIVE EPOXIDE GROUPS, THE POLYEPOXIDE BEING REACTED WITH THE ACIDS IN THE RATIO OF ABOUT 4:3 MOLS TO 6:3 MOLS.
Claim 3
Dependent Claim
44 words
AN EPOXIDE TERMINATED RESIN WHICH IS THE REACTION PRODUCT OF A DIMERIC UNSATURATED HIGHER FATTY ACID WITH AN EXCESS OF A POLYEPOXIDE HAVING A PLURALITY OF EPOXDE GROUPS, THE POLYEPOXIDE BEING REACTED WITH THE ACID IN THE RATIO OF 4:3 MOLS TO 6:3 MOLS.
Claim 4
Dependent Claim
44 words
AN EPOXIDE TERMINATED RESIN WHICH IS THE REACTION PRODUCT OF A DIMERIC UNSATURATED HIGHER FATTY ACID WITH AN EXCESS OF A POLYEPOXIDE HAVING A PLURALITY OF EPOXDE GROUPS, THE POLYEPOXIDE BEING REACTED WITH THE ACID IN THE RATIO OF 4:3 MOLS TO 6:3 MOLS.
Claim 5
Dependent Claim
20 words
A COATING COMPOSITION CONTAINING THE EPOXIDE TERMINATED RESIN OF CLAIM 8, TOGETHER WITH A SMALLER AMOUNT OF A UREA-FORMALDEHYDE RESIN.
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |