Patent US3658795A successfully refreshed from Google Patents.
US3658795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble coating compositions
Assignee: Allnex Austria GmbH
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Filing: 1969-07-14
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Granted: 1972-04-25
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Expires: 1989-07-14
Abstract
Abstract COATING COMPOSITIONS CHARACTERIZED IN THAT THEY ARE WATER-SOLUBLE UPON NEUTRALIZATION COMPRISING (A) A REACTION PRODUCT OF A DIENE POLYMER AND AN ALPHA, BETA ETHYLENICALLY UNSATURATED CARBOXYLIC ACID AND/OR A DICARBOXYLIC ACID AND/OR AN ANHYDRIDE AND/OR A SEMI-ESTER AND/OR A SEMI-AMIDE THEREOF CONTAINING CARBOXYL GROUPS; AND (B) A HEAT-REACTIVE CONDENSATION PRODUCT OF FORMALDEHYDE WITH PHENOL CARBOXYLIC ACIDS ARE DESCRIBED. THE COMPOSITIONS, WHILE BEING QUICK DRYING, ARE NOT OVERLY SENSITIVE TO OXIDATION.
Inventors
- 👤 Wolfgang Daimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:06
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/20; C09D161/32; C09D113/00; C09D113/02; C09D155/00; C09D155/04; C09D161/04; C09D161/06; C09D5/00; C09D5/44; C09D5/4403; C09D5/4473
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |