Polyvinyl chloride composition

Details Polyvinyl chloride composition Polyvinyl chloride composition

1983-05-09

1984-12-04

Ziegler, Jacob

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

Synthetic resins

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

525 70, 525 85, C08L 3104, C08L 3308, C08L 3312

Patent

active

044865694

ABSTRACT:
A polyvinyl chloride composition having improved processability, high clarity, and high heat distortion temperature is prepared by blending (I) 99 to 30 parts by weight of polyvinyl chloride or vinyl chloride copolymer having at least 80 weight percent vinyl chloride; and (II) 1 to 70 parts by weight of a polymer which is obtained by polymerizing 1 to 30 weight percent of a mixture (B) comprising 40 to 80 weight percent styrene monomer and 60 to 20 weight percent alkyl ester of acrylic acid or alkyl ester of methacrylic acid, in the presence of 99 to 70 weight percent methyl methacrylate polymer (A) or copolymer (A) having more than 75 weight percent methyl methacrylate and less than 25 weight percent styrene monomer, the polymer (A) or copolymer (A) having a specific viscosity of less than 0.6.

REFERENCES:
patent: 3925510 (1975-12-01), Ide et al.
patent: 4179481 (1979-12-01), Tuzuki et al.

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