Multiphase core//shell polymers

C - Chemistry – Metallurgy – 08 – F

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400/2012, 400/20

C08F 265/04 (2006.01) C08F 279/02 (2006.01) C08F 283/00 (2006.01) C08F 291/02 (2006.01) C08J 3/12 (2006.01) C08L 77/00 (2006.01)

Patent

CA 1189227

ABSTRACT A multiphase core//shell polymer comprising a crosslinked elastomer core and a rigid thermoplastic polymer shell comprising a mono alkyl maleate or fuma- rate, styrene and optionally a monomer selected from the group consisting of C1 to C8 alkyl acrylates and meth- acrylates, acrylonitril? and methacrylonitrile. The core has an average particle diameter in the range of about 0.3 to about 0.8 micron and the rigid shell has a thick- ness of at least about .025 micron. The multiphase core//shell polymers are useful for blending with poly- amides to provided toughened polyamide compositions.

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