US3865785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyesteramideimides
Assignee: General Electric Co
•
Filing: 1972-12-27
•
Granted: 1975-02-11
•
Expires: 1992-12-27
Abstract
Abstract Polyamideimide coating compositions of high solids content and suitably low viscosity are provided which can use cresylic acidhydrocarbon solvent systems.
Inventors
- 👤 Denis R Pauze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:33
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
THE REACTION PRODUCT OF (1) THE REACTION PRODUCT OF TRICARBOXYLIC ACID MATERIAL HAVING THE FORMULA
Claim 2
Dependent Claim
15 words
THE REACTION PRODUCT OF (1) THE REACTION PRODUCT OF TRICARBOXYLIC ACID MATERIAL HAVING THE FORMULA
Claim 3
Dependent Claim
33 words
The product of claim 1 in which said tricarboxylic acid material is trimellitic anhydride, the aliphatic dicarboxylic acid material is azelaic acid, the polyamine is methylene dianiline, and the glycol is ethylene glycol.
Claim 4
Dependent Claim
34 words
The process of making a polyamideimide coating composition which comprises reacting tricarboxylic acid material, polyamine and aliphatic dicarboxylic acid material and further reacting therewith glycol, the proportions of ingredients being as in claim 1.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |