Patent ID: 6740379
Filing Date: 2004-05-25
Classification: C09J,Y10S,Y10T

Abstract:
An adhesive tape for laminating a first substrate to a second substrate, said adhesive tape comprising:a carrier; a first adhesive layer on a first major surface of the carrier; a solution-coated, non-tacky polymer layer on a second major surface of the carrier, wherein said non-tacky polymer layer comprises a polymer selected from the group consisting of polyvinyl alcohols, polyvinyl chlorides, polyvinylidene chlorides, polyvinyl acetates, polyvinyl pyrrolidones, and copolymers of vinyl acetate and vinyl chloride; a second adhesive layer on a major surface of the non-tacky polymer layer opposite the carrier; and at least one release liner on the first adhesive layer, the second adhesive layer, or both the first and second adhesive layers; wherein said adhesive tape satisfies the following formula: A>Cwherein A is the force necessary to peel said first adhesive layer from said carrier, B is the force necessary to peel said second adhesive layer from said non-tacky polymer layer, and C is the peel force necessary to peel the non-tacky polymer layer from said carrier.