STABLE, PUMPABLE, AQUEOUS SUSPENSIONS OF ORGANIC PEROXIDES

摘要

Stable, pumpable, highly concentrated aqueous suspensions of organic peroxides containing (a) nonionic emulsifiers having a maximum HLB-value of 12.5 and (b) nonionic emulsifiers having a minimum HLB-value of 12.5 or anionic emulsifiers. These suspensions are particularly suitable for the (dis) continuous polymerization of vinyl chloride. There is far less reactor fouling than when in a polymerization under the same conditions use is made only of a solid peroxydicarbonate. The suspensions can also be used in the polymerization of acrylates and the copolymerization of styrene.