Process for the manufacture of shaped articles by graft polymeri

Details Process for the manufacture of shaped articles by graft polymeri Process for the manufacture of shaped articles by graft polymeri

1976-04-21

1977-12-20

Holler, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C08F26304, C08F26504

Patent

active

040641988

ABSTRACT:
Process for the manufacture of shaped articles of a mixture of polystyrene and a copolymer of ethylene with vinyl ester, acrylate or methacrylate. To this end, the said copolymers having a content of from 3 to 40% by weight of unsaturated ester are reacted with monomeric styrene in aqueous suspension in the presence of free-radical polymerization initiators. Whereas a portion of the styrene used is directly grafted onto the ethylene copolymer, the remainder of the polymerized styrene is present in a finely divided state as a homopolymer beside or within the grafted ethylene copolymer. There are obtained homogeneous shaped articles having a styrene content of more than 50% by weight.

REFERENCES:
patent: 3162696 (1964-12-01), Zimmerman et al.
patent: 3218373 (1965-11-01), Salyer
patent: 3565780 (1971-02-01), Zimmerman
patent: 3949019 (1976-04-01), Zeitler et al.

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