Coating composition based on a hydroxyl group-containing polyacrylate resin and its use in processes for producing a multicoat finish

US5759631A · kind A · utility

Assignee

• Basf Lacke & Farben Aktiengesellschaft · DE

Inventors

• Heinz-Peter Rink · Hachenburg, DE
• Michael Brunnemann · Munster, DE

Key dates

• Filing date: Sep 3, 1996
• Grant date: Jun 2, 1998
• Expiry date: Sep 3, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31678
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Coating composition comprising PA0 (A) at least one hydroxyl group-containing polyacrylate resin obtained by polymerizing PA1 (a) from 5 to 80% by weight of a cycloaliphatic ester of methacrylic acid and/or acrylic acid, or a mixture of such monomers, PA1 (b) from 10 to 50% by weight of a hydroxyl group-containing alkyl ester of methacrylic acid and/or acrylic acid, or mixtures of such monomers, PA1 (c) from 0 to 25% by weight of a hydroxyl group-containing, ethylenically unsaturated monomer, different from (a) and (b), or a mixture of such monomers, PA1 (d) from 5 to 80% by weight of an aliphatic ester of methacrylic and/or acrylic acid, different from (a)-(c), or a mixture of such monomers, PA1 (e) from 0 to 40% by weight of an aromatic vinyl hydrocarbon, different from (a)-(d), or a mixture of such monomers, and PA1 (f) from 0 to 40% by weight of an additional ethylenically unsaturated monomer, different from (a)-(e), or a mixture of such monomers, and PA0 (B) at least one crosslinking agent.