Patent ID: 7297741
Filing Date: 2007-11-20
Classification: C08F,C08L,C09J,Y10T

Abstract:
1. A pressure sensitive adhesive composition comprising from 10 to 45 parts by weight of a block copolymer composition, from 40 to 70 parts by weight of a tackifier, from 5 to 40 parts by weight of an extending oil, and from 5 to 15 parts by weight of an ester-type plasticizer, said block copolymer composition comprising: i) from 5 to 70% by weight basis the total weight of the block copolymer composition of a first block copolymer selected from linear styrenic block copolymers (SBC1), radial styrenic block copolymers (SBC2) and mixtures thereof, wherein: ii) from 95 to 30% by weight basis the total weight of the block copolymer composition of a second block copolymer (D1) having an apparent molecular weight of 120,000 to 250,000, comprising a styrenic diblock copolymer having one polymer block substantially made of an aromatic vinyl compound and one polymer block substantially made of a conjugated diene compound.