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Patent US3553284A successfully refreshed from Google Patents.
US3553284A
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Coating compositions comprising a mixture of an aminoplast and a polyester from hexahydroterephthalic acid
Assignee: Huels AG
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Filing: 1968-11-06
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Granted: 1971-01-05
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Expires: 1988-11-06
Abstract
Abstract EXCEPTIONALLY HARD, HIGHLY ELASTIC AND CHEMICALLY RESISTANT COATINGS ARE OBTAINED FROM COMPOSITIONS OF: (A) AMINOPLAST AND (B) POLYESTER OF HEXAHYDROTEREPHTHALIC ACID ON A DIOL HAVINE ADJACENT HYDROXY GROUPS, E.G. ETHYLENE GLYCOL, BUTANEDIOL-(2,3) OR CYCLOHEXENEDIOL-(1,2).
Inventors
- 👤 Franz Riemhofer
- 👤 Ernst Christian Schutze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:09
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553; C08G63/16; C08G63/18; C08G63/199; C09; C09D; C09D167/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |