Peroxide emulsions containing an antifreezing compound

摘要

Aqueous emulsions of a polymerization initiator are used for suspension (co)polymerization reactions. The aqueous emulsions contain: (a) an organic peroxide which is liquid at -5 DEG C.; (b) an aliphatic monohydric alcohol having 1-4 carbon atoms and/or aliphatic glycol having 2-4 carbon atoms; (c) a surfactant and/or a protective colloid; and (d) water. The emulsions may be transported while in a liquid state at a temperature of -10 DEG C. to -25 DEG C. with minimal decrease in active oxygen content.