Coating agent based on a branched hydroxyl group-containing polyester-modified polyacrylate resin and use thereof

US6120851A · kind A · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Harald Borgholte · Munster, DE
• Heinz-Peter Rink · Hachenburg, DE
• Werner-Alfons Jung · Ascheberg, DE
• Michael Brunnemann · Munster, DE

Key dates

• Filing date: Jan 25, 1999
• Grant date: Sep 19, 2000
• Expiry date: Jan 25, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D167/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a coating composition comprising PA0 (A) at least one hydroxyl-containing component which [lacuna] of PA1 (A1) from 5 to 60% by weight of at least one polyester and PA1 (A2) from 40 to 95% by weight of at least one polyacrylate resin which has been prepared at least partially in the presence of component (A1) and PA1 (B) at least one crosslinking agent, characterized in that component (A2) is obtainable from the monomer units: PA0 (a) a cycloaliphatic ester of (meth)acrylic acid, PA0 (b) a hydroxyl-containing alkyl ester of (meth)acrylic acid, PA0 (c) a monomer which is different from (a) and (b) and has at least two polymerizable, olefinically unsaturated double bonds, PA0 (d) optionally a further hydroxyl-containing, ethylenically unsaturated monomer which is different from (a), (b) and (c), PA0 (e) an aliphatic ester of (meth)acrylic acid which is different from (a), (b), (c) and (d), PA0 (f) a vinyl-aromatic hydrocarbon which is different from (a), (b), (c), (d) and (e), and PA0 (g) a further ethylenically unsaturated monomer which is different from (a), (b), (c), (d), (e) and (f).