Processing aid

Details Processing aid Processing aid

1990-03-30

1992-03-10

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C08F21210

Patent

active

050950835

ABSTRACT:
The invention deals with a processing aid for polymeric compositions. The processing aid is a terpolymer comprising 10-49% by weight of a vinyl aromatic monomer like styrene, 5-35% by weight of an acrylic nitrile, like acrylonitrile and 21-60% by weight of an alkylacrylate or alkylmethacrylate with a viscosity number of more than four as measured in dimethylformamide at 30+ C. at a concentration of 100 mg terpolymer per 100 ml dimethylformamide.

REFERENCES:
patent: 2646417 (1953-07-01), Jennings
patent: 3427275 (1969-02-01), Davis
patent: 3975315 (1976-08-01), Parks
patent: 4782127 (1988-11-01), Van Nuffel
Experiments in Polymer Science, Collins et al., John Wiley & Sons, In. (1973), pp. 147-149.

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