Method and composition for improved melt processability of...

Details Method and composition for improved melt processability of... Method and composition for improved melt processability of...

C - Chemistry, Metallurgy

08

L

400/6517

C08L 27/24 (2006.01) C08L 25/12 (2006.01)

Patent

CA 1281467

ABSTRACT A composition of matter comprising a blend of CPVC having a chlorine content of between about 60% and 65% by weight and styrene-acrylonitrile copolymer having an acrylonitrile content of between about 15% and 25% by weight; the composition of matter displays substantially single, homogeneous phase behavior with the CPVC and styrene- acrylonitrile copolymer being substantially or completely miscible; blending of CPVC and styrene- acrylonitrile copolymer provides a resulting blended polymeric material having enhanced temperature and durability properties. Melt processability of CPVC polymeric material may be enhanced by the inclusion of styrene-acrylonitrile copolymer to form the blends; the compositions are useful in injection molding applications.

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