Patent JPS5727367A successfully refreshed from Google Patents.
Patent US4071428A successfully refreshed from Google Patents.
US4071428A
Expired / Lapsed
US
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Process for electrodeposition of quaternary ammonium salt group-containing resins
Assignee: PPG Industries Inc
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Filing: 1976-11-24
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Granted: 1978-01-31
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Expires: 1996-11-24
Abstract
Abstract A method of cationic electrodeposition employing an aqueous dispersion of a quaternary ammonium salt group-containing resin is disclosed. The resin comprises the reaction product of a polymeric tertiary amine and a 1,2-epoxy-containing material.
Inventors
- 👤 Joseph F. Bosso
- 👤 Marco Wismer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:49
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/443; C09D5/4434; C09D5/4442
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
115 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, an anode and an aqueous dispersion of an electrodepositable composition, wherein the electrodepositable composition comprises the reaction product of: 1. a polymeric tertiary amine, 2. a 1,2-epoxy-containing material having the structural formula: ##STR10## where R 1 is selected from the class consisting of hydrogen and methyl and R 2 is selected from the class consisting of hydrogen, alkyl including cycloalkyl, aryl and substituted alkyl and aryl; said reaction being conducted in the presence of acid and/or water to form the quaternary ammonium base group-containing polymer through reaction of the epoxy moieties with the tertiary amine moieties.
Claim 2
Independent Claim
115 words
A method of electrocoating an electrically conductive surface serving as a cathode in an electrical circuit comprising said cathode, an anode and an aqueous dispersion of an electrodepositable composition, wherein the electrodepositable composition comprises the reaction product of: 1. a polymeric tertiary amine, 2. a 1,2-epoxy-containing material having the structural formula: ##STR10## where R 1 is selected from the class consisting of hydrogen and methyl and R 2 is selected from the class consisting of hydrogen, alkyl including cycloalkyl, aryl and substituted alkyl and aryl; said reaction being conducted in the presence of acid and/or water to form the quaternary ammonium base group-containing polymer through reaction of the epoxy moieties with the tertiary amine moieties.
Claim 3
Dependent Claim
66 words
The method of claim 1 in which the polymeric tertiary amine is the addition polymer of an ester of the formula: ##STR11## where R 1 and R 2 are the same or different and are alkyl, alicyclic or aryl groups, R 3 is --(CH 2 ) n -- with n having a value of 1 to 6, and R 4 is hydrogen or an alkyl group.
Claim 4
Dependent Claim
23 words
The method of claim 1 in which the polymeric, tertiary amine is the reaction product of: A. a polyepoxide, B. a secondary amine.
Claim 5
Dependent Claim
16 words
The method of claim 3 in which the polyepoxide is a polyglycidyl ether of a polyphenol.
Claim 6
Dependent Claim
23 words
The method of claim 1 in which the polymeric tertiary amine is formed from reacting an NCO-containing material with an alkanol tertiary amine.
Claim 7
Dependent Claim
31 words
The method of claim 1 in which the 1,2-epoxy-containing material is an alkylene oxide in which R 1 is selected from hydrogen and alkyl containing from 1 to 18 carbon atoms.
Claim 8
Dependent Claim
16 words
The method of claim 6 in which the 1,2-alkylene oxide is ethylene oxide or propylene oxide.
Claim 9
Dependent Claim
35 words
The method of claim 1 in which R 1 is an alkyl radical substituted with ##STR12## wherein X is a bivalent organic radical necessary to complete a 5 or 6-membered unsubstituted or substituted heterocyclic ring.
Claim 10
Dependent Claim
14 words
The method of claim 1 in which the electrodepositable composition contains a curing agent.
Claim 11
Dependent Claim
14 words
The method of claim 9 in which the curing agent is a blocked isocyanate.
References Cited (Backward Citations)
US3928157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-30 | 1981-08-01 | 1982-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-30 | 1985-08-01 | 1986-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-30 | 1989-08-01 | 1990-01-31 | $7700.00 | Window Closed / Lapsed |