Patent · US Expired

Cathodic electrodeposition paint

US5360839A · kind A · utility

2Cited by
2References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 13, 1993
Grant dateNov 1, 1994
Priority date
Expiry dateApr 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.