JPS5641211A - Preparation of vinyl chloride polymer - Google Patents
Preparation of vinyl chloride polymerInfo
- 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
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
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) |
-
1979
- 1979-09-11 JP JP11762879A patent/JPS5641211A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6356246B2 (en) | 1988-11-07 |
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