20090029058 | Epoxy resins with improved elasticity - An epoxy resin AB comprising, in its polymer chain, moieties derived from aliphatic polyethers B1 5 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, a process for its preparation, and a method of use thereof to make elastic coating films that impart good corrosion resistance even in thin layers | 01-29-2009 |