Graft polymers of polymerizable monomers and olefin polymers

Details Graft polymers of polymerizable monomers and olefin polymers Graft polymers of polymerizable monomers and olefin polymers

1983-10-12

1986-08-12

Seccuro, Carman J.

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

Synthetic resins

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

525197, 525290, 525317, 525319, 525324, 525309, 525310, 525308, 525302, 525315, 525243, 525276, 525 75, 525 85, 525 86, 525 70, C08F25502, C08F25504, C08F25506, C08L 5106

Patent

active

046057048

ABSTRACT:
Graft polymers are prepared by reacting an ethylenically unsaturated polymerizable monomer with a polymer of an olefin of 2 to about 8 carbon atoms in a process wherein the olefin polymer is substantially insoluble in the monomer but is capable of absorbing the monomer. In a preferred aspect, a vinyl halide polyolefin graft polymer is produced by reacting a solid polyolefin particle with a vinyl halide monomer in which the polyolefin is substantially insoluble, but is capable of absorbing the monomer. The solid particles can be contacted with the monomer in one step or in stages. When the stage-wise reaction is continued until the proportion of polyolefin in the polymer product is about 2 to abut 20 weight percent, the resulting product can be formed to a transparent or translucent article. When a small proportion of solid polyolefin is employed in the polymerization process, both a graft polymer and a polymer of the unsaturated monomer are simultaneously produced in the same reactor and can be readily mechanically separated into the individual products.

REFERENCES:
patent: 3642950 (1972-02-01), O'Shea
patent: 3789083 (1974-01-01), Dumoulin et al.
patent: 3970718 (1976-07-01), Takahashi et al.
patent: 3975458 (1976-08-01), Severini et al.
patent: 4071582 (1978-01-01), Takahashi
patent: 4163033 (1979-07-01), Takahashi
patent: 4195137 (1980-03-01), Walker

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