Self-crosslinking cationic paint binders and process for producing the binders

US4906692A · kind A · utility

Assignee

• Vianova Kunstharz, AG · AU

Inventors

• Helmut Plum · Taunusstein, DE
• Michael Honel · Mainz, DE

Key dates

• Filing date: May 3, 1989
• Grant date: Mar 6, 1990
• Expiry date: May 3, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D5/4496
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Self-crosslinking cationic paint binders in which the crosslinking is effected through the reaction of methane-carboxylic acid dialkylester monoamide structures with free hydroxyl or amino groups on the resin are described. The crosslinking functionality is provided by reaction of a polyisocyanate with a corresponding quantity of a CH-active alkyl ester. The alkyl ester is preferably a malonic acid dimethylester or malonic acid diethylester.