Patent Number: 6,309,707

Title: Coating composition comprising at least 3 components, process for its preparation, and its use

Abstract: The present invention relates to a coating composition comprising at least three components, characterized in that component (I) contains as binder at least one acrylate copolymer which is dissolved or dispersed in organic solvent and has a number-average molecular weight of between 1000 and 30,000, an OH number of from 40 to 200 and an acid number of from 5 to 150 and/or polyester resin having a number-average molecular weight of between 1000 and 30,000, an OH number of from 30 to 250 and an acid number of from 5 to 150 and/or polyurethane resin having a number-average molecular weight of between 1000 and 30,000, an OH number of from 20 to 200 and an acid number of from 5 to 150, and, if desired, a further binder, the binder components being selected such that a 50% strength solution of the binder in ethoxyethyl propionate has a viscosity at 23.degree. C. of .ltoreq.2.5 dPa.multidot.s, component (II) contains at least one nonblocked polyisocyanate as crosslinking agent, and component (III) is essentially binder-free and contains water.

Inventors: Mayer; Bernd (Munster, DE), Meisenburg; Uwe (Duisburg, DE), Nienhaus; Egbert (Ascheberg, DE)

Assignee: BASF Coatings AG

International Classification: C08G 18/62 (20060101); C08G 18/08 (20060101); C08G 18/10 (20060101); C08G 18/64 (20060101); C08G 18/12 (20060101); C08G 18/00 (20060101); C09D 167/00 (20060101); C09D 175/04 (20060101); C08G 18/40 (20060101); C08G 18/42 (20060101); C09D 133/06 (); C09D 167/02 (); C09D 175/04 ()

Expiration Date: 10/30/2018