Patent ID: 6293037
Filing Date: 2001-09-25
Classification: C08F,C09J,Y10T

Abstract:
A self-adhesive postage stamp, comprising:(a) a flexible face stock having opposed first and second faces, at least one of which is imprinted with postage indicia; and(b) a pressure-sensitive adhesive applied to one face of the flexible face stock, said pressure-sensitive adhesive comprising an acrylic copolymer made from a mixture of monomers, comprising, based on the total weight of monomers,(i) from about 9 to about 40% of an ethylenically unsaturated monomer having an isobornyl group, and(ii) from about 50 to about 91% of at least one alkyl acrylate having an alkyl group with about 4 to about 8 carbon atoms.