Patent ID: 8957128
Filing Date: 2015-02-17
Classification: C08G,C09D

Abstract:
1. An aqueous coating composition comprising a combination of a high molar mass urethane-modified alkyd resin A and a reactive diluent D, characterised in that the alkyd resin A has moieties derived from grafted fatty acids A1 which are graft products of fatty acids A11 having at least one olefinic unsaturation, on average, per molecule, and olefinically unsaturated linear or branched aliphatic acids A12, and at least one of polyhydric aliphatic alcohols A2, and transesterification products of polyhydric aliphatic alcohols A2 with natural oils A6, and fatty acids A3, and polyfunctional isocyanates A4, and the reactive diluent D has a hydroxyl number of at most 5 mg/g, and comprises moieties derived from olefinically unsaturated fatty acids D1 which may optionally be grafted with olefinically unsaturated monomers D11 including at least one of an olefinically unsaturated monocarboxylic acid D111.