Patent ID: 6265485
Filing Date: 2001-07-24
Classification: C08F,C08G,C08L

Abstract:
A composition of matter comprisinga polymer of styrene, anda polymodal compositionwherein said polymodal composition comprises coupled tapered block copolymers, wherein said coupled tapered block copolymers consist ofS-S-B/S-B/S-x-S/B-S/B-S-S,S-B/S-B/S-x-S/B-S/B-S, andS-S-B/S-B/S-x-S/B-S/B-S copolymers, and whereinS=monovinylaromatic blockB=conjugated diene blockB/S=tapered block of conjugateddiene/monovinylaromatic compound, andx=coupling agent and whereinsaid composition of matter substantially contains only coupled tapered block copolymer from said polymodal composition.