Blends of a rubber-modified polyvinyl chloride resin and a polym

Details Blends of a rubber-modified polyvinyl chloride resin and a polym Blends of a rubber-modified polyvinyl chloride resin and a polym

1983-05-16

1984-09-04

Ziegler, J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 74, 525 75, 525 76, 525 78, 525 80, 525 84, 525 85, C08L 5104, C08L 5300

Patent

active

044698453

ABSTRACT:
A polyblend of (a) 80-20 percent of a rubber-modified vinyl chloride resin, prepared by polymerization of vinyl chloride in the presence of 2 to 20 percent of a rubber, and (b) 20-80 percent of copolymers or terpolymers of a vinyl aromatic monomer, such as styrene, an unsaturated dicarboxylic acid anhydride, such as maleic anhydride, and an optional third monomer such as methyl methacrylate or acrylonitrile, and (c) optionally 0-15 percent of an ungrafted rubber such as a block copolymer of 1,3-butadiene and styrene; and/or 0-35 percent of a graft copolymer of rubber, styrene, and methyl methacrylate or acrylonitrile. The polyblends have high heat distortion temperatures, high impact strength, good processability, and can be made in a substantially transparent form.

REFERENCES:
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patent: 4329272 (1982-05-01), Dufour
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W. J. Hall, R. L. Kruse, R. A. Mendelson, Q. A. Trementozzi, Organic Coatings & Plastics Chemistry Division vol. 47 p. 298; Meeting of the Am. Chem. Soc., Sep. 12-17, 1982.

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