Emulsion polymerization of vinyl chloride using prehomogenized m

Chemistry of carbon compounds – Miscellaneous organic carbon compounds

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260 296R, 260 296ME, 260 296MQ, 526207, 526212, C08L 2706

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active

040935817

ABSTRACT:
A one-step process for the emulsion polymerization of vinyl chloride using a water-soluble initiator and a prehomogenized aqueous emulsifier system of (1) a C.sub.12 -C.sub.18 straight chain alkyl or alkenyl surfactant and (2) a C.sub.16 -C.sub.20 straight chain alkyl or alkenyl alcohol and/or a straight chain saturated hydrocarbon having a carbon content of greater than 18 is disclosed. Suitable examples of straight chain surfactants include sodium lauryl sulfate and sodium oleate. Suitable alcohols include stearyl alcohol, cetyl alcohol and eicosanol. A suitable hydrocarbon is eicosane. The resulting homo- and copolymer latices have excellent mechanical stabilities, particle sizes generally larger than obtainable using only the mixed surfactant system without prehomogenization of the emulsifier system and good thermal stability.

REFERENCES:
patent: 3219609 (1965-11-01), Perronin
patent: 3324097 (1967-06-01), Pears
patent: 3383346 (1968-05-01), Smith
patent: 3551399 (1970-12-01), Yonezic et al.
patent: 3755225 (1973-08-01), Pierce, Jr.
patent: 3974133 (1976-08-01), Evans

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