Patent ID: 8092827

Claim:
A medical non-crosslinked pressure-sensitive adhesive composition which comprises an adhesive polymer A having a weight-average molecular weight of from 500,000 to 1,000,000, an adhesive polymer B having a weight-average molecular weight of from 1,000,000 to 1,500,000, and a liquid plasticizer, wherein the adhesive polymer A is a polymer obtained by copolymerizing one or more alkyl (meth)acrylates with N-vinyl-2-pyrrolidone and the adhesive polymer B is either a polymer obtained by the polymerization of one or more alkyl (meth)acrylates or a polymer obtained by copolymerizing one or more alkyl (meth)acrylates with one or more comonomers other than N-vinyl-2-pyrrolidone.