Graft copolymers by suspension process following emulsion

Details Graft copolymers by suspension process following emulsion Graft copolymers by suspension process following emulsion

1976-04-27

1979-04-24

Ziegler, J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 4R, 260 297EM, 260 297UP, 260 297N, 260 297SQ, 260 297UA, 260880R, C08L 126, C08L 900

Patent

active

041511280

ABSTRACT:
In the process disclosed herein, a latex comprising a diene rubber pregrafted with styrene/acrylonitrile type monomer mixtures, for example, about 5 to 50% by weight styrene/acrylonitrile emulsion-grafted thereon, is added to an aqueous solution of suspending agent. Additional styrene/acrylonitrile type monomers are then added to the dispersion and polymerized onto the suspended rubbery particles with peroxide initiator to produce ABS type polymers containing from about 3 to less than about 30 percent by weight diene rubber.

REFERENCES:
patent: 3238275 (1966-03-01), Calvert
patent: 3288887 (1966-11-01), Yoshino
patent: 3370105 (1968-02-01), DeBell et al.
patent: 3436440 (1969-04-01), Abe et al.
patent: 3448175 (1969-06-01), Doak et al.
patent: 3465066 (1969-09-01), Tanaka et al.
patent: 3887652 (1975-06-01), Carrock et al.

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