Radiation-curable compositions containing alternating copolymers of isobutylene-type monomers

Abstract

A composition that includes a copolymer containing residues having the following structural units (I): where n is an integer from 1 to 10,000; R1 is linear or branched C1 to C4 alkyl; R2 is selected from the group consisting of methyl, linear, cyclic, or branched C2 to C20 alkyl, alkenyl, aryl, alkaryl, and aralkyl; and R3 is a moiety comprising a group that is capable of undergoing a polymerization reaction when exposed to actinic radiation or ionizing radiation. The composition may be used to coat a substrate by providing a substrate; applying a layer of a radiation-curable composition that includes the copolymer described above over at least a portion of a surface of the substrate; and curing the radiation-curable composition by exposing the layer to actinic radiation in an amount sufficient to effect curing of the radiation-curable composition.

Dependencies are inferred from the claim text.