Perester-acyl sulfonyl peroxide co-initiator for vinyl polymeriz

Details Perester-acyl sulfonyl peroxide co-initiator for vinyl polymeriz Perester-acyl sulfonyl peroxide co-initiator for vinyl polymeriz

1974-11-01

1979-04-24

Lilling, Herbert J.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526209, 526214, 526219, 526220, 526223, 526227, 526330, 526344, C08F 438, C08F11406, C08F21808, C08F 436

Patent

active

041513398

ABSTRACT:
A process for polymerizing vinyl chloride and for copolymerizing vinyl chloride and up to 30 percent by weight of comonomers in aqueous suspension under heat and pressure in the presence of a mixture of an acyl sulfonyl peroxide and a perester of the formula ##STR1## wherein R.sub.3, R.sub.4, and R.sub.5 are the same or different alkyl groups of from 1 to about 10 carbon atoms provided not more than one of R.sub.3, R.sub.4, and R.sub.5 is methyl, and R is selected from 2,2-dimethyl propyl and straight chain alkyl of 1-5 carbon atoms.

REFERENCES:
patent: 3624123 (1971-11-01), Lewis et al.
patent: 3726847 (1973-04-01), Lewis et al.
patent: 3781255 (1973-12-01), Balwe et al.
H. Bennett, F.A.I.C., "Concise Chemical and Technical Dictionary", Third Enlarged Edition, Chem. Pub. Co. 1974, p. 1103.

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