Functional mbs impact modifiers for use in engineering resins
AssigneeArkema Inc.
InventorsJason M. Lyons, Navneeth K. Singh, Xianfeng Shen
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Abstract
The invention relates to a methylmethacrylate-butadiene-styrene (MBS) core/shell polymer impact modifier containing functionalization in the shell. The functionalized MBS is useful as an impact modifier in engineering resins, and especially in blends of engineering resins, particularly where the blend contains both functional and non-functional resins. One specific engineering resin blend having excellent low temperature impact performance is a polycarbonate (PC)/polyethylene terephthalate (PET) blend with the functional MBS of the present invention.
Claims16
An impact modified polymer alloy composition comprising:
- a) a functional polymer
- b) and at least one non-functional polymer selected from the group consisting of alkyl (meth)acrylate polymers and copolymers, acrylonitrile/butadiene/styrene terpolymers (ABS), acrylonitrile/styrene/acrylate copolymers, polycarbonates, methacrylate/butadiene/styrene copolymers, polystyrene, acrylonitrile/acrylate copolymers, acrylonitrile/methyl methacrylate copolymers, polyolefins, polyvinyl chloride), a homopolymer of a vinylidene halide, and alloys thereof;
- and
- c) functional core-shell impact modifier, wherein the outer-most shell comprises from 0.5 to 30 weight percent, based on the shell polymer, of functional groups.
Dependencies are inferred from the claim text.