High impact polyphenylene ether/styrene resin/elastomer...

Details High impact polyphenylene ether/styrene resin/elastomer... High impact polyphenylene ether/styrene resin/elastomer...

C - Chemistry, Metallurgy

08

L

C08L 71/12 (2006.01) C08L 25/04 (2006.01) C08L 25/06 (2006.01) C08L 53/02 (2006.01)

Patent

CA 2201449

A composition having improved impact strength at low temperatures comprising a polyphenylene ether , a styrene resin, and 2-40 weight percent based on the weight of the composition of an elastomeric block copolymer having at least two polymerised styrene endblocks and a ethylene/propylene midblock. Preferably, the block copolymer is a linear styrene-ethylene/propylene-styrene-styrene block copolymer.

Composition résistant mieux aux chocs à basse température; elle est constituée d'un poly(oxyde de phénylène), d'une résine de styrène, de 2 à 40 % en poids (pourcentage basé sur le poids total de la composition) d'un copolymère séquencé élastomère possédant au moins deux blocs terminaux de styrène polymérisé et un bloc intermédiaire d'éthylène/propylène. Le copolymère séquencé est de préférence un copolymère linéaire de styrène-éthylène/propylène-styrène-styrène.

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