US3953391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cationic acrylic electrodepositable compositions
Assignee: PPG Industries Inc
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Filing: 1972-03-09
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Granted: 1976-04-27
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Expires: 1992-03-09
Abstract
Abstract It has been found that aqueous coating compositions comprising acid-solubilized, imine-modified, carboxylic acid group-containing acrylic resins can be electrodeposited. These compositions deposit on the cathode to provide coatings having excellent properties.
Inventors
- 👤 Rostyslaw Dowbenko
- 👤 Wen-Hsuan Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:58
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4407; C09D5/4411
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
97 words
An aqueous electrodeposition bath comprising an aqueous dispersion of a coating composition comprising an acid solubilized interpolymer prepared by reacting at least a portion of the carboxyl groups of an interpolymer, prepared from an ethylenically-unsaturated carboxylic acid and at least one other ethylenically-unsaturated monomer, with an imine of the formula: ##EQU2## where R 1 , R 2 , R 3 , R 4 and R 5 are each hydrogen, alkyl, aryl, alkaryl or aralkyl, R 6 is hydrogen or a lower alkyl radical, usually not having more than 6 carbon atoms, and n is 0 or 1.
Claim 2
Dependent Claim
97 words
An aqueous electrodeposition bath comprising an aqueous dispersion of a coating composition comprising an acid solubilized interpolymer prepared by reacting at least a portion of the carboxyl groups of an interpolymer, prepared from an ethylenically-unsaturated carboxylic acid and at least one other ethylenically-unsaturated monomer, with an imine of the formula: ##EQU2## where R 1 , R 2 , R 3 , R 4 and R 5 are each hydrogen, alkyl, aryl, alkaryl or aralkyl, R 6 is hydrogen or a lower alkyl radical, usually not having more than 6 carbon atoms, and n is 0 or 1.
Claim 3
Dependent Claim
35 words
A composition as in claim 1 wherein the interpolymer reacted with said imine is an interpolymer of an ester of an unsaturated carboxylic acid, an unsaturated carboxylic acid and at least one other ethylenically-unsaturated monomer.
Claim 4
Dependent Claim
32 words
A composition as in claim 2 wherein the interpolymer is an interpolymer of a hydroxyalkyl ester of an unsaturated carboxylic acid, an unsaturated carboxylic acid and at least one other ethylenically-unsaturated monomer.
Claim 5
Dependent Claim
31 words
A composition as in claim 2 wherein the interpolymer is an interpolymer of an etherified methylolated derivative of acrylamide, an unsaturated carboxylic acid and at least one other ethylenically unsaturated monomer.
Claim 6
Dependent Claim
18 words
A composition as in claim 1 wherein said imine is an alkylenimine of 2 to 4 carbon atoms.
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) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |