Impact modified syndiotactic polystyrene blend

Details Impact modified syndiotactic polystyrene blend Impact modified syndiotactic polystyrene blend

1998-05-06

2000-04-11

Wilson, Donald R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 86, 525 92D, 525132, 525232, 525240, 524504, 524505, 524508, C08L 2500, C08L 900, C08L 2316, C08L 5302, C08L 7112

Patent

active

060489324

ABSTRACT:
The present invention relates to an impact resistant polystyrene composition which comprises 5 to 97% by weight of an (a) styrenic polymer having syndiotactic configuration, 2 to 95% by weight of a (b) rubbery elastomer having an olefinic component or a polyolefin, 0.5 to 10% by weight of a (c) styrene/olefin block or graft copolymer having a micro-phase separation temperature of 180.degree. C. at the highest when diluted with dioctyl phthalate to a solution with a concentration of 60% by weight and 0.5 to 5% by weight of (d) poly(phenylene ether); according to the present invention, an impact resistant polystyrene composition can be provided which is greatly enhanced in impact resistance and extensibility without impairing heat resistance and modulus of elasticity.

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