POLYMERIZATION OF VINYL CHLORIDE - MITSUI TOATSU CHEMICALS

Title:

POLYMERIZATION OF VINYL CHLORIDE

Document Type and Number:

WIPO Patent Application WO/1991/009879

Kind Code:

A1

Abstract:

An improved process for the homo- and copolymerization of vinyl chloride, wherein the inner wall of a polymeriser and those parts of the apparatus which come into contact with the monomer during polymerization are coated with a special coating agent. This agent comprises an aqueous solution of a modified condensate of phenol with aldehyde and has a specified pH value such that it dissolves at a coating temperature and precipitates said condensate when heated on the inner wall of the polymerizer or the like. Since this agent forms a uniform and tough thin film on the inner wall of the polymerizer and the like, it has an excellent effect of inhibiting adhesion of a polymer.

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Inventors:

MASUKO SEIICHI (JP)
NAKAMURA ICHISABURO (JP)
NAKA YOSHIMATSU (JP)
FUKUDA KEIICHI (JP)
YAMAMOTO AKIRA (JP)
HATAKEYAMA YASUYUKI (JP)
YAMAGUCHI AKIHIRO (JP)
YAMAGUCHI KEIZABURO (JP)

Application Number:

PCT/JP1990/001739

Publication Date:

July 11, 1991

Filing Date:

December 28, 1990

Export Citation:

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Assignee:

MITSUI TOATSU CHEMICALS (JP)

International Classes:

C08F2/00; C08F14/06; (IPC1-7): C08F2/00; C08F14/06

Foreign References:

JPS61181802A	1986-08-14
JPS58180511A	1983-10-22
JPS55160004A	1980-12-12
JPS54107991A	1979-08-24

Other References: