Patent ID: 6946515
Filing Date: 2005-09-20
Classification: C08G,C09D

Abstract:
1. A coating material comprising (I) a component comprising at least one oligomeric or polymeric resin containing functional groups which react with isocyanate groups, as binder (A), (II) a component comprising at least one polyisocyanate as crosslinking agent (B), and (III) a component which comprises water, wherein at least one of component (I) or (III) comprise at least one substantially unbranched, hydrophobic polyester (C) comprising at least two hydroxyl groups in the molecule, an OH number of from 56 to 500 mg KOH/g, an acid number <10 mg KOH/g and a number-average molecular weight Mn of from 300 to 2 000 daltons wherein the substantially unbranched, hydrophobic polyester has the general formula 1. wherein: R=substituted or unsubstituted divalent C R1=hydrogen atom or monovalent substituted or unsubstituted C1 to C20 alkyl, C2 to C20 alkenyl, C4 to C12 cycloalkyl or cycloalkenyl, C6 to C12 aryl or C6 to C20 arylalkyl, arylalkenyl, arylcycloalkyl, arylcycloalkenyl, alkylaryl, alkenylaryl, cycloalkylaryl, cycloalkenylaryl, alkylcycloalkyl, alkylcycloalkenyl, alkenylcycloalkyl, alkenylcycloalkenyl, cycloalkylalkyl, cycloalkenylalkyl, cycloalkylalkenyl or cycloalkenylalkenyl radical.