Polystyrene resin composition having improved stiffness

Details Polystyrene resin composition having improved stiffness Polystyrene resin composition having improved stiffness

1992-12-14

1993-07-20

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524394, 524399, 524400, 524413, 524496, C08K 1304, C08K 509, C08K 702, C08K 310

Patent

active

052294463

ABSTRACT:
A polystyrene resin composition comprising a rubber-reinforced polystyrene, a fibrous potassium titanate and a higher fatty acid and/or its metal salt in specific proportions. The composition exhibits greatly improved stiffness without sacrificing its excellent impact strength, melt flowability and good appearance. The composition is useful as a material for manufacturing large-sized molded articles, such as parts and housings for large-sized TV sets and frames for air conditioners. The composition may further comprise a fire retardant and a carbon fiber in specific proportions. The resultant fire-retardant composition is not only excellent in the above-mentioned properties of mechanical strength but also exhibits excellent fire retardance and, therefore, is advantageously used as a material for manufacturing the above-mentioned articles especially when the articles are required to have high fire retardance.

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