Method of polymerizing styrene

Details Method of polymerizing styrene Method of polymerizing styrene

1980-08-08

1981-07-28

Foelak, Morton

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

Synthetic resins

Cellular products or processes of preparing a cellular...

260DIG24, 521 96, 521 98, 521907, 521146, C08J 920

Patent

active

042810671

ABSTRACT:
By using alpha,alpha'-bis-t-butylperoxydiisopropylbenzene (TDB) as an organic peroxide synergist in making expandable polystyrene having a K value of 55-59 and containing an organic bromide reaction mixture compatible with the polymerization (such as hexabromocyclododecane), excellent results are obtained. Specifically, foams of overall improved properties, namely in flammability, collapse and shrinkage, are obtained.

REFERENCES:
patent: 3058928 (1962-10-01), Eichhorn et al.
patent: 3058929 (1962-10-01), van der Hoff et al.
patent: 3093599 (1963-06-01), Mueller-Tamm et al.
patent: 3819547 (1974-06-01), Pillar et al.

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