Patent ID: 7186771

Claim:
An air drying waterborne resin composition comprising at least one amphiphilic air drying dendritic polymer, at least one non-amphiphilic air drying resin, at least one drier initiating and/or promoting autoxidation, water and optionally at least one anionic and/or nonionic surfactant and/or at least one coalescent agent wherein said at least one amphiphilic air drying dendritic polymer is built up from a polyhydric dendritic core polymer having at least 4 terminal hydroxyl groups and thus a hydroxyl functionality (ƒ) of at least 4, and at least one unsaturated carboxylic acid bonded to at least one and at most ƒ-1 said terminal hydroxyl group(s) and at least one adduct, obtained by addition of at least one monoalkylated polyethylene glycol to at least one dicarboxylic acid or at least one corresponding anhydride and/or at least one diisocyanate, bonded to at least one and at most ƒ-1 said terminal hydroxyl group(s), and that said at least one non-amphiphilic air drying resin is a short, medium or long oil air drying alkyd.