Dual-functional adhesive tapes.

摘要

Dual-functional adhesive tapes of the invention comprise a polyolefin heat-activatable adhesive, graft-polymerized to at least a portion of this adhesive, at least one monomer selected from the group consisting of acrylic acid, methacrylic acid and esters thereof; acrylamide; methacrylamide; sterically nonhindered tertiary alkyl acrylamides and methacrylamides; secondary alkyl acrylamides and methacrylamides having three or less carbon atoms in the alkyl group; and N-vinyl pyrrolidone, and firmly adherently bonded to the graft-polymerized monomer, an acrylic-type pressure-sensitive adhesive, wherein pressure-sensitive adhesive remains firmly bonded to the heat-activatable adhesive even when the tape is heated to permit attachment of the heat-activatable adhesive to a substrate.