Adhesive material for use on adhesive tape, comprises an acrylate block copolymer comprising (co)polymer blocks with low softening points, which exist in microphase-separated domains under usage conditions

摘要

Pressure-sensitive adhesive material comprising an acrylate block copolymer with at least two (co)polymer blocks with softening points in the range -125 to +20[deg]C, which exist in microphase-separated domains under usage conditions. Pressure-sensitive adhesive material (AM) comprising an acrylate block copolymer with at least two chemically-distinguishable, covalently-linked blocks (P), each of which contains a homopolymer block of a first monomer (M1) or a copolymer block of a second monomer (M2) which may be the same as or different from M1, in which the blocks (P) exist in microphase-separated domains under usage conditions and each show a softening temperature between -125 and +20[deg]C. An independent claim is also included for adhesive tape comprising a carrier strip coated on one or both sides with (AM).