Pressure sensitive adhesive comprising vinylpyrrolidone

Abstract

A pressure sensitive adhesive comprising a mixture of a radiation-crosslinkable polymer A) composed of at least 40% by weight of C1 to C18 alkyl (meth)acrylates and a polymer B) composed of at least 20% by weight of vinylpyrrolidone and of less than 40% by weight of C1 to C18 alkyl (meth)acrylates or a pressure sensitive adhesive comprising a radiation-crosslinkable polymer C) composed of at least 40% by weight of C1 to C18 alkyl (meth)acrylates and comprising vinylpyrrolidone as comonomer, the fraction of the polymer B) in the mixture being less than 15% by weight, based on the sum of A)+B), and the amount of vinylpyrrolidone in the polymer C) being less than 15% by weight.

Dependencies are inferred from the claim text.