FLAME RETARDANT SYNDIOTACTIC POLYSTYRENE RESIN COMPOSITION

摘要

The syndiotactic polystyrene resin composition according to the present invention comprises (a) 100 parts by weight of a syndiotactic polystyrene, (b) about 1 &tilde& 50 parts by weight of a hydrogenated styrene/butadiene/styrene block copolymer (SEBS) as a rubber component to improve impact strength of the resin composition, (c) about 1 &tilde& 15 parts by weight of a hydrogenated styrene/butadiene/styrene - graft-maleic anhydride (SEBS-MA) as a first compatibilizer to improve compatibility between the syndiotactic polystyrene and the rubber, (d) about 1 &tilde& 90 parts by weight of polyphenyleneoxide (PPO) as a second compatibilizer to improve compatibility between the syndiotactic polystyrene and the rubber, and (e) about 1 &tilde& 60 parts by weight of a phosphoric acid ester as a halogen-free flame retardant. The syndiotactic polystyrene resin composition may optionally include (f) about 1 &tilde& 70 parts by weight of glass fibers.