Cathodic electrocoating process
US3975251A · kind A · utility
21Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 1975 |
| Grant date | Aug 17, 1976 |
| Priority date | — |
| Expiry date | Mar 19, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/4042
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A heat-curable electrocoating composition containing a polymer having pendant amine groups and cross-linking agent having alpha-beta-ethylenically unsaturated carbonyl groups can be electrodeposited onto a cathode substrate disposed within an aqueous electrocoating bath. The amine groups of the polymer are protonated to render the polymer water-dispersible prior to electrodeposition. Upon electrodeposition onto the substrate, the amine groups become de-protonated and then cross-link with the alpha-beta-ethylenically unsaturated carbonyls upon heating to form a fully-cured electrodeposited coating on the cathode substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.