Patent ID: 7704559

Claim:
A water-dilutable epoxy resin composition ABC comprising an epoxy resin AB which epoxy resin AB comprises, in its polymer chain, moieties derived from aliphatic polyethers B1 having at least 4 carbon atoms in the alkylene group or from aliphatic polyesters B2 based on linear, branched or cyclic aliphatic polyhydric alcohols B21 and linear, branched or cyclic aliphatic polyvalent acids B22, where the average number of hydroxyl or acid groups in B21 or B22 is at least 1.9, and an emulsifier C wherein said emulsifier C is a reaction product of an aliphatic polyol C1 comprising, in its structure, at least a mass fraction of 20% of oxyethylene groups, and having a number average molar mass M n , of from 200 g/mol to 20 000 g/mol, with an epoxy resin C2 which has at least two epoxy groups per molecule, and which has an epoxy group content of from 0.5 mol/kg to 10 mol/kg, the ratio of the number of hydroxyl groups in C1 to the number of epoxy groups in C2 being from 1:0.85 to 1:7.