Cathodic electrodeposition paint
US5360839A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1993 |
| Grant date | Nov 1, 1994 |
| Priority date | — |
| Expiry date | Apr 13, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/4473
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Cathodic electrodeposition paints are rendered hardly susceptible to oil droplet-induced craters by incorporating an amine-modified acrylic copolymer of t-butyl (meth)acrylate with a hydroxyl group-containing monomer and an oxirane ring-containing monomer in the form of an aqueous emulsion. The amine-modified acrylic copolymer may be an adduct with a half blocked organic diisocyanate. The paint gives a cured film substantially free from oil droplet-induced craters and having a good adhesion to an overcoating and a good surface smoothness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.