Patent ID: 7005031

Claim:
A pressure sensitive adhesive composition comprising a pressure sensitive adhesive polymer comprising: at least one copolymerized monoethylenically unsaturated (meth)acrylic acid ester monomer, wherein the (meth)acrylic acid ester monomer, when homopolymerized, has a Tg of less than about 25° C.; at least one copolymerized monoethylenically unsaturated reinforcing monomer, wherein the reinforcing monomer, when homopolymerized, has a Tg of at least about 25° C.; and at least one copolymerized poly(alkylene oxide) (meth)acrylic acid ester monomer; wherein the pressure sensitive adhesive polymer is functionalized with quaternary ammonium functional groups, and further wherein the quaternary ammonium functional groups are covalently bonded to the polymer.