US4066592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zwitterion-containing compositions
Assignee: PPG Industries Inc
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Filing: 1975-07-25
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Granted: 1978-01-03
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Expires: 1995-07-25
Abstract
Abstract Synthetic resins which are water-dispersible Zwitterion-containing resins and containing chemically-bound quaternary ammonium base groups can be dissolved or dispersed in water to provide aqueous coating compositions. Such compositions in which these resins are the major resinous component can be applied by electrodeposition and deposit on the cathode to provide coatings of improved properties including a high degree of resistance to corrosion or staining.
Inventors
- 👤 Marco Wismer
- 👤 Joseph F. Bosso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:31
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4488; C08; C08F; C08F8/00; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0833; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/52; C09D5/4419; C09D5/443; C09D5/4434; C09D5/4442
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
54 words
An ungelled, inherently water-dispersible, substantially epoxy group free, electrodepositable synthetic organic resin containing Zwitterions, said Zwitterions consisting of a quaternary ammonium base group and a carboxyl group which are derived from the reaction of an epoxy group-containing resin with an amino acid, solutions of said synthetic organic resin being substantially free of dissociated counter-ions.
Claim 2
Dependent Claim
54 words
An ungelled, inherently water-dispersible, substantially epoxy group free, electrodepositable synthetic organic resin containing Zwitterions, said Zwitterions consisting of a quaternary ammonium base group and a carboxyl group which are derived from the reaction of an epoxy group-containing resin with an amino acid, solutions of said synthetic organic resin being substantially free of dissociated counter-ions.
Claim 3
Dependent Claim
24 words
A resin as in claim 1 wherein the resin is selected from the group consisting of vinyl addition polymers, polyethers, polyurethanes, polyesters and polyamides.
Claim 4
Dependent Claim
18 words
A resin as in claim 1 which contains between about 0.05 percent and about 16 percent quaternary nitrogen.
Claim 5
Dependent Claim
14 words
A resin as in claim 1 wherein the Zwitterion is derived from beta-N,N-dimethylaminopropionic acid.
Claim 6
Independent Claim
44 words
A method of preparing an ungelled, substantially epoxy group free, inherently water-dispersible, electrodepositable resin which comprises reacting a 1,2-epoxy group containing resin with an amino acid, thereby forming a resin containing quaternary ammonium Zwitterions, solutions of said resin being substantially free of dissociated counter-ions.
Claim 7
Independent Claim
44 words
A method of preparing an ungelled, substantially epoxy group free, inherently water-dispersible, electrodepositable resin which comprises reacting a 1,2-epoxy group containing resin with an amino acid, thereby forming a resin containing quaternary ammonium Zwitterions, solutions of said resin being substantially free of dissociated counter-ions.
Claim 8
Dependent Claim
27 words
A method as in claim 5 wherein the epoxy group containing resin is selected from the group consisting of vinyl addition polymers, polyethers, polyesters, polyurethanes, and polyamides.
Claim 9
Dependent Claim
28 words
A method as in claim 5 wherein the amino acid is reacted in a proportion so that the electrodepositable resin contains about 0.05 to about 16 percent nitrogen.
Claim 10
Dependent Claim
13 words
A method as in claim 5 wherein the amino acid is beta-N,N-dimethylaminopropionic acid.
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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) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |