Process for preparing an intermediate bulk density pvc resin

Details Process for preparing an intermediate bulk density pvc resin Process for preparing an intermediate bulk density pvc resin

C - Chemistry, Metallurgy

08

F

402/304, 402/395

C08F 2/20 (2006.01) C08F 14/06 (2006.01)

Patent

CA 1091397

ABSTRACT OF THE DISCLOSURE A method for preparing an intermediate bulk density polyvinyl chloride resin which comprises suspension polymerizing vinyl chloride in the presence of a primary suspending agent such as hydroxypropyl methyl cellulose and a secondary suspending agent such as partially hydrolyzed polyvinyl alcohol or sorbitan monooleate wherein the concen- trations of suspending agents in the polymerization solution are such that the reduction of interfacial tension due to the secondary suspending agent is equal to or slightly greater than the reduction of interfacial tension due to the primary suspending agent.

260001

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