Increased syndiotactic Tay poke polystyrene elastomer Bro poke copolymers

摘要

PROBLEM TO BE SOLVED: To provide extended syndiotactic polystyrene-elastomeric block copolymers.;SOLUTION: A composition composed of a block copolymer of at least one elastomeric block and at least one syndiotactic polystyrene block extended with an extender comprises 100 pts.wt. of a polymer component comprising 1-80 wt.% of a syndiotactic polystyrene (sPS) block and 99-20 wt.% of a rubbery elastomeric block(s), and at least 30 pts.wt. of the extender. The above extended block copolymer composition is useful for high temperature application since it exhibits characteristics of thermoplastic elastomers and unique softness.;COPYRIGHT: (C)2008,JPO&INPIT