Graft copolymer and its blends
OwnerAbuzar Syed, Peter Frenkelinventors
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Abstract
A composition is disclosed that comprises: (A) at least one polymer selected from the group consisting of polyolefins, polar polymers, and mixtures thereof; and (B) a graft copolymer comprising a propylene polymer backbone having grafted thereon at least one monomer selected from the group consisting of alkyl(meth)acrylates and vinyl aromatic compounds, said graft copolymer having been prepared by a solid state grafting process comprising blending a solid propylene polymer with said monomer(s) in a reactor in the presence of a free radical-generating means and reacting the polymeric components at elevated temperature in the absence of solvent.
Claims18
A composition comprising:
- (A) at least one polymer selected from the group consisting of polyolefins, polar polymers, and mixtures thereof;
- and
- (B) a graft copolymer comprising a propylene polymer backbone having grafted thereon at least one monomer selected from the group consisting of alkyl(meth)acrylates and vinyl aromatic compounds, said graft copolymer having been prepared by a solid state grafting process comprising blending a solid propylene polymer with said monomer(s) in a reactor in the presence of a free radical-generating means and reacting the polymeric components at elevated temperature in the absence of solvent.
A composition comprising:
- (A) at least one polymer selected from the group consisting of a polypropylene homopolymer and a polar polymer selected from the group consisting of PVC, PMMA and mixtures of the foregoing;
- and
- (B) a graft copolymer comprising a propylene homopolymer backbone having grafted thereon at least one monomer selected from the group consisting of methyl methacrylate and butyl methacrylate, said graft copolymer having been prepared by a solid state grafting process comprising blending solid propylene homopolymer with said monomer(s) in a reactor in the presence of an organic peroxide and reacting the polymeric components at a temperature in the range of from about 110° to about 140° C. in the absence of solvent.
Dependencies are inferred from the claim text.