US4096105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous coating composition
Assignee: SCM Corp
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Filing: 1976-05-24
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Granted: 1978-06-20
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Expires: 1996-05-24
Abstract
Abstract A heat-curable, aqueous coating composition comprises a polymer having pendant primary and/or secondary amine groups and a cross-linking agent having alpha-, beta-ethylenically unsaturated carbonyl groups in aqueous dispersion. The amine groups are protonated to render the polymer water dispersible. In one preferred embodiment, the coating composition is useful in cathodic electrocoating.
Inventors
- 👤 Vincent Daniel McGinniss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:02
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4042; C09; C09D; C09D5/00; C09D5/44; C09D5/4419; C09D5/443; C09D5/4453; Y; Y10; Y10S; Y10S524/00; Y10S524/901; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31529
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
123 words
A coating composition in aqueous dispersion for forming a heat-curable film thereof on a substrate comprising: a polymer having at least about 5% by weight pendant primary and/or secondary amine groups, said amine groups being protonated with acid to render said polymer water dispersible; and at least about 5% by weight of said polymer of an alpha-, beta-ethylenically unsaturated carbonyl cross-linking agent having at least two alpha-, beta-ethylenically unsaturated carbonyl groups, said film of said coating composition being heat-curable at a temperature sufficient to volatilize the water and said acid in said film, whereby said protonated amine groups become deprotonated and said cross-linking agent cross-linking said polymer through said deprotonated amine groups by addition polymerization to form a heat-cured film on said substrate.
Claim 2
Dependent Claim
123 words
A coating composition in aqueous dispersion for forming a heat-curable film thereof on a substrate comprising: a polymer having at least about 5% by weight pendant primary and/or secondary amine groups, said amine groups being protonated with acid to render said polymer water dispersible; and at least about 5% by weight of said polymer of an alpha-, beta-ethylenically unsaturated carbonyl cross-linking agent having at least two alpha-, beta-ethylenically unsaturated carbonyl groups, said film of said coating composition being heat-curable at a temperature sufficient to volatilize the water and said acid in said film, whereby said protonated amine groups become deprotonated and said cross-linking agent cross-linking said polymer through said deprotonated amine groups by addition polymerization to form a heat-cured film on said substrate.
Claim 3
Dependent Claim
21 words
The coating composition of claim 1 wherein said cross-linking agent is an acrylate cross-linking agent having at least two acrylate groups.
Claim 4
Dependent Claim
21 words
The coating composition of claim 1 wherein said cross-linking agent is an acrylamide cross-linking agent having at least two acrylamide groups.
Claim 5
Dependent Claim
22 words
The coating composition of claim 1 wherein said film on said substrate is curable at temperatures of at least about 100° F.
Claim 6
Dependent Claim
14 words
A substrate having thereon a heat-curable film of the coating composition of claim 1.
Claim 7
Dependent Claim
14 words
A substrate having thereon a heat-cured film of the coating composition of claim 1.
Claim 8
Dependent Claim
131 words
A cathodic electrocoating composition dispersed in an aqueous electrocoating bath for electrodeposition onto a cathode substrate disposed within said bath for forming a heat-curable cathodic electrodeposited coating on said cathode substrate, comprising: an electrocoating polymer having at least about 5% by weight pendant primary and/or secondary groups, said amine groups being protonated with acid to render said polymer water dispersible in said bath; and at least about 5% by weight of said polymer of an alpha-, beta-ethylenically unsaturated carbonyl cross-linking agent having at least two alpha-, beta-ethylenically unsaturated carbonyl groups, said protonated amine groups adapted to become deprotonated upon electrodeposition of said polymer onto said cathode substrate, said cross-linking agent cross-linking said polymer through said deprotonated amine groups by addition polymerization to form a heat-cured electrodeposited coating on said cathode substrate.
Claim 9
Dependent Claim
131 words
A cathodic electrocoating composition dispersed in an aqueous electrocoating bath for electrodeposition onto a cathode substrate disposed within said bath for forming a heat-curable cathodic electrodeposited coating on said cathode substrate, comprising: an electrocoating polymer having at least about 5% by weight pendant primary and/or secondary groups, said amine groups being protonated with acid to render said polymer water dispersible in said bath; and at least about 5% by weight of said polymer of an alpha-, beta-ethylenically unsaturated carbonyl cross-linking agent having at least two alpha-, beta-ethylenically unsaturated carbonyl groups, said protonated amine groups adapted to become deprotonated upon electrodeposition of said polymer onto said cathode substrate, said cross-linking agent cross-linking said polymer through said deprotonated amine groups by addition polymerization to form a heat-cured electrodeposited coating on said cathode substrate.
Claim 10
Dependent Claim
22 words
The cathodic electrocoating composition of claim 7 wherein said cross-linking agent is an acrylate cross-linking agent having at least two acrylate groups.
Claim 11
Dependent Claim
22 words
The cathodic electrocoating composition of claim 7 wherein said cross-linking agent is an acrylamide cross-linking agent having at least two acrylamide groups.
Claim 12
Dependent Claim
23 words
The cathodic electrocoating composition of claim 7 wherein said film on said substrate is curable at temperatures of at least about 100° F.
Claim 13
Dependent Claim
17 words
A cathode substrate having thereon a heat-curable electrodeposited coating of the cathodic electrocoating composition of claim 7.
Claim 14
Dependent Claim
17 words
A cathode substrate having thereon a heat-cured electrodeposited coating of the cathodic electrocoating composition of claim 7.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |