US3086949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of converting free carboxylic acid groups in liquid ester coating compositions to half-ester groups with retention of the coating composition in the liquid state
Assignee: A Boake Roberts and Co Ltd
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Filing: 1957-11-04
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Granted: 1963-04-23
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Expires: 1977-11-04
Abstract
No abstract record available.
Inventors
- 👤 Chatfield Herbert Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:57
CPC Classifications
C; C11; C11C; C11C3/00; C11C3/04; C08; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/56; C08G63/58; C08L; C08L63/00; C09; C09F; C09F1/00; C09F1/04; C09F7/00; C11C3/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
THE PROCESS FOR INHIBITING FREE CARBOXYLIC ACIDITY IN LIQUID COATING COMPOSITION CONTAINING, AS AN ESSENTIAL FILM-FORMING INGREDIENT, ACID ESTERS OF ORGANIC ACIDS ESLECTED FROM THE GROUP CONSISTING OF NATURAL RESINS, MODIFIED NATURAL RESINS, AND SYNTHETIC RESINS, SAID ACID ESTERS HAVING A FREE ACID NUMBER OF OVER 6 FROM RETAINS -VOOOH GROUPS, WHICH COMPRISES MIXING SAID LIQUID COMPOSITION WITH AN EPOXIDIZED FATTY OIL HAVING INTERNAL OXIRANE BRIDGING TWO ADJACENT CARBONS ON THE FATTY CHAIN PORTION OF SAID OIL, AND HEATING THE RESULTING MIXTURE TO A TEMPERATURE OF FROM ABOUT 170* TO 240* C., WHEREBY SAID RETAINED -COOH GROUPS OF THE FILM-FORMING INGREDIENT ARE REACTED WITH SAID OXIRANE GROUPS TO FORM GLYCOLLIC HALF ESTER GROUPS WHILE RETAINING THE FILM-FORMING PROPERTY OF THE COMPOSITION.
Claim 2
Dependent Claim
121 words
THE PROCESS FOR INHIBITING FREE CARBOXYLIC ACIDITY IN LIQUID COATING COMPOSITION CONTAINING, AS AN ESSENTIAL FILM-FORMING INGREDIENT, ACID ESTERS OF ORGANIC ACIDS ESLECTED FROM THE GROUP CONSISTING OF NATURAL RESINS, MODIFIED NATURAL RESINS, AND SYNTHETIC RESINS, SAID ACID ESTERS HAVING A FREE ACID NUMBER OF OVER 6 FROM RETAINS -VOOOH GROUPS, WHICH COMPRISES MIXING SAID LIQUID COMPOSITION WITH AN EPOXIDIZED FATTY OIL HAVING INTERNAL OXIRANE BRIDGING TWO ADJACENT CARBONS ON THE FATTY CHAIN PORTION OF SAID OIL, AND HEATING THE RESULTING MIXTURE TO A TEMPERATURE OF FROM ABOUT 170* TO 240* C., WHEREBY SAID RETAINED -COOH GROUPS OF THE FILM-FORMING INGREDIENT ARE REACTED WITH SAID OXIRANE GROUPS TO FORM GLYCOLLIC HALF ESTER GROUPS WHILE RETAINING THE FILM-FORMING PROPERTY OF THE COMPOSITION.
References Cited (Backward Citations)
US2732367A
Cited
US2556145A
Cited
US2682514A
Cited
GB737697A
Cited
US2907723A
Cited
US2907728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |