Acrylonitrile/Styrene/Acrylic/polymeric compositions and methods for making same
AssigneeHughes Processing, Inc.
InventorRoderick E. Hughes
Life of this patent
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Abstract
Compositions which have substantial weatherability and impact resistance include a substantially uniform blend of an acrylonitrile/styrene/acrylic polymeric material and a component selected from (A) polymeric materials including units derived from ethylene, carbon monoxide and copolymerizable ethylenically unsaturated organic compounds, (B) graft polymer components including ethylene-propylene-non-conjugated diene terpolymers grafted with styrene and acrylonitrile monomers, and mixtures thereof. Methods for making such compositions include forming a substantially uniform physical mixture of such polymeric material and component.
Claims11
A composition comprising a physical mixture of about 80% to about 99% by weight of (1) a physical blend of an uncross-linked acrylonitrile/styrene copolymer and a cross-linked alkyl acrylace/grafr(meth)acrylate copolymer, said blend having a substantially uniform make-up;
- and (2) an additional component selected from the group consisting of (A) polymeric materials of units derived from ethylene, units derived from carbon monoxide and units derived from one or more monomers selected from the group consisting of copolymerizable ethylenically unsaturated organic compounds, (B) graft polymer components of ethyielne-propylene-non-conjugted diene terpolymrers grafted with styrene and acrylonitrile monomers, and mixtures thereof, said additional component being present in an amount effective to enhance the impact resistance of the composition relative to a substantially identical composition without said component.
A method for forming a weatherable resin composition comprising:
- forming a physical mixture having a substantially uniform. make-up of about 80% to about 99% by weight of an uncross-linked acrylonitrile/styrene copolymer, a cross-linked alkyl acrylate/graft (meth)acrylate copolymer, and (2) an additional component selected from the group consisting of (A) polymeric materials of units derived from ethylene, units derived from carbon monoxide and units derived from one or more monomers selected from the group consisting of copolymerizable ethylenically unsaturated organic compounds, (B) graft polymer components of ethylene-propylene-non-conjugated diene terpolymers grafted with styrene and acrylonitrile monomers, said physical mixture having enhanced impact resistance relative to a substantially identical physical mixture without said additional component.
Dependencies are inferred from the claim text.