Process for preparing impact resistant polyvinyl aromatics

Details Process for preparing impact resistant polyvinyl aromatics Process for preparing impact resistant polyvinyl aromatics

1976-08-12

1978-05-09

Holler, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C08F 428, C08F 434, C08F25506

Patent

active

040887120

ABSTRACT:
There is disclosed an improved bulk-suspension process for polymerizing vinyl aromatic monomers in the presence of an ethylene-propylene-nonconjugated diene-rubber, which comprises using, in the suspension polymerization step, peroxy-carbonic esters as the polymerization initiator. The process of the invention yields products having improved notched impact strength, weatherability and elongation at break combined with a good shear stability.

REFERENCES:
patent: 3515774 (1970-06-01), Lee
patent: 3886233 (1975-05-01), Visseren
patent: 3893968 (1975-07-01), Shiga et al.
patent: 3927142 (1975-12-01), Strobel
Chemical Abstracts, 84, 18338k (1976).

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