Process for production of vinyl polymer
申请(专利)号：
AT19710006960
申请日期：
1971-08-09
公开/公告号：
AT320970B
公开/公告日期：
1975-03-10
申请(专利权)人：
SHINETSU CHEMICAL COMPANY
被引量：
摘要：
A process for production of a vinyl polymer by suspension polymerization or emulsion polymerization of at least one kind of vinyl monomer in an aqueous medium is disclosed.In this process, the polymerization is carried out in a polymerizer, the inner wall surface and portions of the auxiliary equipment thereof which may come into contact with the monomer during polymerization having a surface roughness of not greater than 5 &mgr;m and being previously coated with a scaling preventive comprising at least one selected from dyes, pigments and aromatic or heterocyclic compounds having at least 5 conjugated &pgr; bonds. According to this process, scaling on the inner wall surface of a polymerizer, etc. during polymerization can be prevented effectively and surely.
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