公开(公告)号：BR8100559A

公开(公告)日：1981-08-18

申请号：BR8100559

申请日：1981-01-30

Applicant: HOECHST AG

Inventor： VLMSCHNEIDER D ,  KLIPPERT H

IPC: C08F2/20 ,  C08F14/06 ,  C08F291/00 ,  C08L31/04 ,  C08L1/26 ,  C08L29/04 ,  B01F17/52

Abstract: A process for the polymerization of vinyl chloride in an aqueous phase in the presence of oil-soluble free-radical initiators and a mixture of at least two high-molecular, surface-active suspending agents is described. This mixture is composed of 10 to 90% by weight (relative to the mixture) of at least one copolymer formed from vinyl acetate and a compound of the formula R1-CO-NR2-CH=CH2 wherein R1 is H or alkyl having 1 to 4 C atoms and R2 is H or methyl, and of 90 to 10% by weight (relative to the mixture) of at least one cellulose ether or a partially acetylated polyvinyl alcohol. Homopolymers, copolymers or graft copolymers of vinyl chloride which have an improved combination of properties are obtained.