New processing aid (8-CB-10.483)
AssigneeGeneral Electric Company
InventorsJacky P. Dominique, Marc Loibl
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Abstract
The invention deals with a processing aid for polymeric compositions. The processing aid is a terpolymer comprising 10-49% by weight of a vinyl aromatic monomer like styrene, 5-35% by weight of an acrylic nitrile, like acrylonitrile and 21-60% by weight of an alkylacrylate or alkylmethacrylate with a viscosity number of more than four as measured in dimethylformamide at 30.degree. C. at a concentration of 100 mg terpolymer per 100 ml dimethylformamide.
Claims5
Thermoplastic resin composition comprising at least one thermoplastic resin and a polymeric processing aid characterized in that the composition comprises as a processing aid a terpolymer comprising 10-49% by weight of a vinylaromatic monomer, 5-35% by weight of an acrylic nitrile and 21-60% by weight of an alkylacrylate or alkylmethacrylate, with a viscosity number of more than four as is measured in dimethylformamide at 30.degree. C. at a concentration of 100 mg terpolymer per 100 ml dimethylformamide.
Thermoplastic resin composition comprising a vinylhalide (co)polymer and a processing aid characterized in that the composition comprises as a processing aid per 100 parts by weight of the vinylchloride (co)polymer 0.1-20 parts by weight of a terpolymer comprising 10-49% by weight of a vinylaromatic monomer, 5-35% by weight of an acrylic nitrile and 21-60% by weight of an alkylacrylate or alkylmethacrylate, with a viscosity number of more than four as is measured in dimethylformamide at 30.degree. C. at a concentration of 100 mg terpolymer per 100 ml dimethylformamide.
Dependencies are inferred from the claim text.