Patent ID: 6214931
Filing Date: 2001-04-10
Classification: C08F,C09J,Y10T

Abstract:
Pressure-sensitive adhesive comprising an aqueous dispersion of an acrylic ester copolymer obtained in the presence of a crosslinking monomer bearing a functional group, the copolymer having a glass transition temperature which does not exceed 0.degree. C., wherein the crosslinking monomer is methacrylic anhydride, and is used in a quantity of from 0.4 to 2.5% by weight of the solid materials in the dispersion, and wherein the pressure-sensitive adhesive has all of the following properties:a shear strength, measured according to FINAT method No. 8, at least equal to 5000 minutes,a contact aggressiveness, measured according to FINAT method No. 9, at least equal to 7 N/25 mm, andan adhesion to glass at 180.degree. after 20 minutes, according to FINAT method No. 1, after 7 days of pasting at 60.degree. C., at least equal to 8 N/25 mm.