Polyester resin impregnating and coating solutions and their use

摘要

The polyester resin impregnating and coating solution comprises polyesters having structures of the formula (I)where n is from 0 to 10and where the solution is essentially free from monomers containing acrylic, vinylic or allylic unsaturation and where the solvent employed preferably comprises aliphatic saturated C2-6 alcohols, C3-6 ketones or C3-6 carboxylic esters or mixtures thereof, the proportion of the solvent being from 5 to 60% by weight of the overall polyester resin impregnating and coating solution.