Process for the production of a multi-layer paint coating and base paint for the base coat of a multi-layer paint coating

US5256453A · kind A · utility

Assignee

• Basf Lacke & Farben Aktiengesellschaft · DE

Inventors

• Monika Heithorn · Senden, DE
• Stefan Wieditz · Sylvania, US
• Gerold Mahr · Munster, DE
• Arnold Dobbelstein · Cologne, DE

Key dates

• Filing date: Dec 31, 1991
• Grant date: Oct 26, 1993
• Expiry date: Dec 31, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L2205/18
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the production of a multi-layer paint coating in which base paints are employed which contain 5 to 20% by weight of crosslinked polymer microparticles, 2 to 15% by weight of a cellulose ester and 5 to 20% by weight of an epoxidized fatty acid ester, the weight percentages relating to the total content of nonvolatile constituents, excluding pigments and inorganic fillers, and the cellulose ester being so selected that a solution of 15 parts by weight of the cellulose ester in 85 parts by weight of a 9:1 mixture of acetone and ethanol at 23.degree. C. has a viscosity of 200 to 600 mPa.s.