Acrylonitrile/styrene/acrylic/filler 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 (1) a physical mixture of an uncross-linked acrylonitrile/styrene copolymer and a cross-linked alkyl acrylate/graft (meth)acrylate copolymer; and (2) a filler component, preferably wood, in an amount effective as a filler in the composition. Methods for making such compositions include forming a substantially uniform physical blend of such copolymers and filler component. The compositions preferably are substantially free of cross-linked acrylonitrile/styrene copolymer.
Claims22
A weatherable composition comprising a blend having a substantially uniform make-up and including (1) a physical mixture of at least about 30% by weight, based on the total weight of the physical mixture, of an uncross-linked acrylonitrile/styrene copolymer and at least about 5% by weight, based on the total weight of the physical mixture, of a cross-linked alkyl acrylate/graft (meth)acrylate copolymer;
- and (2) wood in an amount effective as a filler in the composition, said composition being substantially free of cross-linked acrylonitrile/styrene copolymer.
A composition comprising a physical blend having a substantially uniform make-up of an uncross-linked acrylonitrile/styrene copolymer, a cross-linked alkyl acrylate/graft (meth)acrylate copolymer, and wood in an amount effective as a filler in the composition, said composition being weatherable and substantially free of cross-linked acrylonitrile/styrene copolymer.
A method for forming a weatherable composition comprising:
- providing an uncross-linked acrylonitrile/styrene copolymer;
- providing a cross-linked alkyl acrylate/graft (meth)acrylate copolymer;
- providing wood particles;
- and
- forming a physical blend having a substantially uniform make-up of said uncross-linked acrylonitrile/styrene copolymer, said cross-linked alkyl acrylate/graft (meth)acrylate copolymer, and said wood particles, said physical blend being substantially free of cross-linked acrylonitrile/styrene copolymer.
Dependencies are inferred from the claim text.