Electrocoating composition of a polyamine self-condensed epoxy adduct and coatings produced thereby

US5559174A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter D. Clark · Farmington Hills, US
• John Gilbert · Beverly Hills, US
• Gunther Ott · Hachenburg, DE
• Dieter Ruhl · Munster, DE
• David J. Santure · Novi, US
• Ulrich Heimann · Munster, DE
• Klaus Cibura · Southfield, US

Key dates

• Filing date: Jun 7, 1995
• Grant date: Sep 24, 1996
• Expiry date: Jun 7, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D5/4457
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a novel electrocoating composition for metallic substrates that exhibits "thick-build" protective properties at "medium-build" thicknesses. It is composed of a self-addition epoxy resin-polyamine adduct, a blocked isocyanate cross-linker, a polyglycol-polyamine grind resin, a plasticizer, an anti-cratering agent and pigments.