JPS5641211A - Preparation of vinyl chloride polymer - Google Patents

Preparation of vinyl chloride polymer

Info

Publication number
JPS5641211A
JPS5641211A JP11762879A JP11762879A JPS5641211A JP S5641211 A JPS5641211 A JP S5641211A JP 11762879 A JP11762879 A JP 11762879A JP 11762879 A JP11762879 A JP 11762879A JP S5641211 A JPS5641211 A JP S5641211A
Authority
JP
Japan
Prior art keywords
vinyl chloride
chloride polymer
silicon
preparation
foaming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11762879A
Other languages
Japanese (ja)
Other versions
JPS6356246B2 (en
Inventor
Kiichi Maruhashi
Michio Oda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Nippon Synthetic Chemical Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Synthetic Chemical Industry Co Ltd filed Critical Nippon Synthetic Chemical Industry Co Ltd
Priority to JP11762879A priority Critical patent/JPS5641211A/en
Publication of JPS5641211A publication Critical patent/JPS5641211A/en
Publication of JPS6356246B2 publication Critical patent/JPS6356246B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To industrially advantageously prepare a vinyl chloride polymer, preventing a polymerization solution from foaming, by suspension polymerization in an aqueous medium in the presence of a silicon-containing nonionic surfactant or an alkyl-containing colloidal hydrophobic SiO2.
CONSTITUTION: In the preparation of a vinyl chloride polymer by the suspension polymerization of vinyl chloride in an aqueous medium, the vinyl chloride polymer is prepared, preventing the polymerization solution from foaming, in the presence of (A) a silicon-containing nonionic surfactant, containing silicon in such an amount that specific infrared absorption at 800cm-1 to that at 2,925cm-1, is 0.2W5, and 10wt% or more of insoluble matter in ethylene dichloride, and/or of (B) colloidal hydrophobic SiO2 containing an alkyl group. Component (A) and (B) are used separately or together, in an amount of 0.1W1,000ppm, preferably 1W200ppm, based on the vinyl chloride polymer, fed.
COPYRIGHT: (C)1981,JPO&Japio
JP11762879A 1979-09-11 1979-09-11 Preparation of vinyl chloride polymer Granted JPS5641211A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11762879A JPS5641211A (en) 1979-09-11 1979-09-11 Preparation of vinyl chloride polymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11762879A JPS5641211A (en) 1979-09-11 1979-09-11 Preparation of vinyl chloride polymer

Publications (2)

Publication Number Publication Date
JPS5641211A true JPS5641211A (en) 1981-04-17
JPS6356246B2 JPS6356246B2 (en) 1988-11-07

Family

ID=14716426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11762879A Granted JPS5641211A (en) 1979-09-11 1979-09-11 Preparation of vinyl chloride polymer

Country Status (1)

Country Link
JP (1) JPS5641211A (en)

Also Published As

Publication number Publication date
JPS6356246B2 (en) 1988-11-07

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