SELF-SUPPORTING POLYESTER SHEET, ONE SURFACE OR BOTH SURFACE OF WHICH IS COATED WITH ADHESIVE ASSISTANT LAYER AND WHICH IS MELT-EXTRUDED AND ORIENTED, MANUFACTURE OF SAID SHEET AND COATING ASSISTANT LAYER

摘要

A melt-extruded, oriented, self-supporting polyester film which is coated on one or both sides with an adhesion-promotion coating has the characterising features that the adhesion-promotion coating is essentially a copolymer comprising a self-curing carboxy-functional polymer A) which additionally contains epoxy groups, and at least one copolymerisable alpha , beta -olefinically unsaturated monomer B).