ABS-Type polyblend compositions

Details ABS-Type polyblend compositions ABS-Type polyblend compositions

1979-05-15

1981-02-10

Taylor, Hosea E.

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

Synthetic resins

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

525 69, 525 71, 260 318M, 260 318DR, 260 318AN, C08L 5104

Patent

active

042502713

ABSTRACT:
Disclosed is an ABS type polyblend composition exhibiting improved physical properties, which comprises from about 5 to 60% by weight of a copolymer of styrene and acrylonitrile; from about 10 to 70% by weight of a graft copolymer of styrene, acrylonitrile, and a butadiene polymer having an average rubber particle size of from about 1 to 10.mu.; and from about 10 to 70% of a high butadiene content backbone copolymer of styrene, acrylonitrile, and a butadiene polymer having an average rubber particle size of less than abut 0.5.mu., the ratios of the backbone copolymer and the styrene-acrylonitrile-butadiene polymer copolymer being adjusted such that from about 15 to 25% by weight of the total butadiene polymer content of the polyblend is provided by the larger rubber particle size graft copolymer.

REFERENCES:
patent: 3502744 (1970-03-01), Weitzel et al.
patent: 3509237 (1970-04-01), Aubrey
patent: 3903200 (1975-09-01), Cinera et al.
patent: 4009227 (1977-02-01), Ott et al.
patent: 4107234 (1978-08-01), Cornell
patent: 4153645 (1979-05-01), Lanza

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