Polystyrene resin composition having improved stiffness

C - Chemistry – Metallurgy – 08 – L

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400/6495

C08L 25/06 (2006.01) C08K 5/09 (2006.01) C08K 7/02 (2006.01) C08K 13/04 (2006.01)

Patent

CA 1333311

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 propor- tions. 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 artic- les, 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 retar- dance and, therefore, is advantageously used as a material for manufacturing the above-mentioned articles especially when the articles are required to have high fire retar- dance.

587707

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