Patent ID: 6756127
Filing Date: 2004-06-29
Classification: C08K,C09D,C09J,Y10T

Abstract:
A pressure-sensitive adhesive tape comprising a plastic film, a primer film formed by applying a primer composition onto the plastic film, followed by heat curing, and a silicone pressure-sensitive adhesive layer thereon, said primer composition comprising:(A) a diorganopolysiloxane having alkenyl groups at both ends of its molecular chain and an average degree of polymerization of 500 to 2,000, wherein the amount of alkenyl groups being 0.001 to 0.005 mol per 100 g of the diorganopolysiloxafle, (B) an organohydrogenpolysiloxane having at least two hydrogen atoms directly attached to silicon atoms in a molecule, (C) a platinum base curing catalyst, and (D) a retarder.