Polymerization of ethylenically unsaturated monomer

Details Polymerization of ethylenically unsaturated monomer Polymerization of ethylenically unsaturated monomer

1975-02-28

1976-08-31

Wong, Jr., Harry

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

260 63R, 260 75UA, 260 775R, 260 97, 260875, 526 89, 526213, 526227, 526345, C08F11406, C08F21406

Patent

active

039780325

ABSTRACT:
Ethylenically unsaturated material susceptible to free-radical polymerization, e.g., vinyl chloride monomer, is polymerized, e.g., in an aqueous medium, with an initiator system comprising, in combination, alkaline buffering reagent, e.g., sodium bicarbonate, organic acid anhydride, e.g., isobutyric anhydride, peroxygen compound selected from organic peroxy acid (peracid), e.g., peracetic acid, and hydrogen peroxide, and alkyl haloformate, e.g., ethyl chloroformate. The initiator system is added to the polymerization medium to form the initiator(s) in situ.

REFERENCES:
patent: 3049521 (1962-08-01), Burkholder
patent: 3637633 (1972-01-01), Dixon
patent: 3720700 (1973-03-01), Norback

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