Process for preparing high impact polystyrenes

Details Process for preparing high impact polystyrenes Process for preparing high impact polystyrenes

1978-08-21

1980-07-15

Michl, Paul R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

525258, 525316, C08K 501

Patent

active

042127890

ABSTRACT:
A process is described for preparing high impact polystyrenes by mass-suspension polymerization of styrene and a polybutadiene rubber having a vinyl isomer content of 11 to 22 percent. The high impact polystyrenes made by the disclosed process are useful for forming extruded sheet with balanced impact properties suited for deep draw thermoforming.

REFERENCES:
patent: 3214495 (1965-10-01), Harris
patent: 3284542 (1966-11-01), Carrock
patent: 3428712 (1969-02-01), Carrock
patent: 3658944 (1972-04-01), Osuga
patent: 3989771 (1976-11-01), Reith

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