Patent ID: 8258240

Claim:
A water-dispersed pressure-sensitive adhesive composition comprising (a) as a base polymer thereof a water-dispersed acrylic copolymer (polymer L) with a glass transition temperature (Tg) in the range of −70° C. to −50° C., and (b) 0.5 to 15 parts by weight of a water-dispersed acrylic copolymer (polymer H) with a Tg in the range of 30° C. to 120° C. in relation to 100 parts by weight of the polymer L based on solid content, wherein the polymer L is obtained by polymerization of a monomer starting material comprising: 60 wt % or more of an alkyl (meth)acrylate with a C 8 -C 12 alkyl group (monomer la); and 0.5 to 10 wt % of a radical polymerizable monomer with a carboxyl group (monomer lb).