Patent US3640926A successfully refreshed from Google Patents.
US3640926A
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Aqueous dispersions of epoxy resin esters and method of preparing same
Assignee: BASF Corp
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Filing: 1969-04-16
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Granted: 1972-02-08
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Expires: 1989-04-16
Abstract
Abstract AN AQUEOUS DISPERSION OF A COATING-FORMING EPOXY RESIN ESTER AND A SALTED AMINE, SUITABLE FOR USE IN ELECTRO-COATING, SAID SALTED AMINE BEING THE REATION PRODUCT OF A CARBOXYLIC ACID HAVING 1 TO 8 CARBON ATOMS AND A TERTIARY AMINE IN WHICH THE FATTY CARBON CHAIN HAS FROM 12 TO 24 CARBON ATOMS.
Inventors
- 👤 William W Slater
- 👤 Lawrence E Thow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:53
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/05; C08G; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G59/1455; C09; C09D; C09D163/00; C09D163/10; C09D5/00; C09D5/44; C09D5/4419; C09D5/4423; C09D5/4426; C25; C25D; C25D13/00; C25D13/04; C25D13/06; C08J2363/00; Y; Y10; Y10S; Y10S524/00; Y10S524/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |