Reclaimable polyester film having adhesion-promoting coating

摘要

A reclaimable polyester film is disclosed which comprises an oriented polyester film which has been coated with an adhesion-promoting coating. The coating is applied to the film as an aqueous dispersion and is dried and crosslinked by the application of heat. The coating is prepared by the free-radical emulsion polymerizable of the following components: (A) 1 to 99% by weight of a polymer having carboxy and epoxy groups in the form of an aqueous system with, (B) 1 to 99% by weight of at least one copolymerizable alpha - beta -olefinic unsaturated monomer, each with reference to the total solids content of the components, and (c) 0.01 to 10% by weight of at least one polymerization initiator, based upon the monomer proportion of the components (B), and (D) 0 to 20% by weight of anionic or nonionic emulsifiers or a mixture of both, or also of protective colloids, with reference to the proportion of component (B).