Patent ID: 7560143
Filing Date: 2009-07-14
Classification: C08F,C08G,C08L,C09D

Abstract:
1. Aqueous radiation curable binders comprising non-onically stabilized epoxy resins ABC which are mixtures of adducts of polyethylene glycol-modified epoxy resins A and epoxy resins B that are free from polyethylene glycol derived groups, with olefinically unsaturated acids C, characterized in that they comprise building blocks of epoxy resins A modified with polyethylene glycol made by reaction, under ring opening, of polyethylene glycol and a epoxy resin having an average of two epoxy groups per molecule, and then reacting the resin obtained with a polyhydric phenol and a glycidyl ester or a glycidyl ether of a polyhydric phenol in an advancement reaction which glycidyl ethers have a specific content of epoxide groups of between 1.1 mol/kg and 6.7 mol/kg, of epoxy resins B that are free from polyethylene glycol, and of olefinically unsaturated acids C, and that all reaction products derived from the epoxy resins A and B comprise at least one ester group formed by reaction of a terminal epoxy group with an olefinically unsaturated acid C.