POLYMERIC COMPOSITION Russian patent published in 1995 - IPC

FIELD: polymeric materials. SUBSTANCE: polymeric composition has 68-90 wt. -% crystalline polystyrene with syndiotactic structure and 10-32 wt.-% rubber-like (co)polymer. Copolymer is taken from the group involving block-copolymer of styrene and butadiene or hydrogenated butadiene, copolymer of methylmethacrylate, butylacrylate and styrene, polybutadiene, styrene copolymer grafted to polyburadiene, styrene copolymer grafted to copolymer of methylmethacrylate and butadiene. Particle size of rubber-like (co)polymer is 0.1-4.0 mm. Composition can also contain inorganic filler. Composition is prepared by components mixing, granulation and processing by cast under pressure. EFFECT: increased heat stability and shock resistance of polymeric composition. 3 cl, 3 tbl