JPS5655402A - Suspension stabilizer - Google Patents
Suspension stabilizerInfo
- Publication number
- JPS5655402A JPS5655402A JP13229779A JP13229779A JPS5655402A JP S5655402 A JPS5655402 A JP S5655402A JP 13229779 A JP13229779 A JP 13229779A JP 13229779 A JP13229779 A JP 13229779A JP S5655402 A JPS5655402 A JP S5655402A
- Authority
- JP
- Japan
- Prior art keywords
- average
- partially saponified
- saponified pva
- dispersion stabilizer
- hydrophilic groups
- 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.)
- Pending
Links
Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Polymerisation Methods In General (AREA)
Abstract
PURPOSE: A dispersion stabilizer particularly suitable in suspension polymerization of vinyl chloride, comprising a combination of a partially saponified PVA having anionic hydrophilic groups on its side chains and a partially saponified PVA being free of said hydrophilic groups and having a specified saponification degree.
CONSTITUTION: The dispersion stabilizer is obtained by mixing (A) 20W80wt% of a partially saponified PVA, average polymerization degree 200W3,000, average saponification degree 60W90mol%, having 0.02W10mol% of anionic hydrophilic groups such as carboxyl groups on its side chains with (B) 80W20wt% of a partially saponified PVA, average polymerization degree 400W3,000, average saponification degree 60W90mol%. One hundred (100)pts.wt. of vinyl chloride is introduced into a vessel containing (I) 100W300pts.wt. of water, (II) 0.01W0.3pt.wt. of said dispersion stabilizer and (III) 0.01W0.3pt.wt. of a polymerization initiator and the mixture is polymerized to produce PVC.
EFFECT: The PVC thus produced has a sharp particle size distribution, a moderate average particle diameter, a moderate apparent density and a high porosity.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13229779A JPS5655402A (en) | 1979-10-13 | 1979-10-13 | Suspension stabilizer |
ES495811A ES495811A0 (en) | 1979-10-13 | 1980-10-10 | A PROCEDURE FOR PREPARING A POLYMER FROM A VINYL COMPOUND |
US06/195,737 US4388442A (en) | 1979-10-13 | 1980-10-10 | Stabilizer or dispersing agent for use in a suspension polymerization of a vinyl compound comprising a modified and partially hydrolyzed anionic polyvinyl alcohol |
DE19803038643 DE3038643A1 (en) | 1979-10-13 | 1980-10-13 | STABILIZER OR DISPERSING AGENT AND METHOD FOR SUSPENSION POLYMERIZING A VINYL COMPOUND |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13229779A JPS5655402A (en) | 1979-10-13 | 1979-10-13 | Suspension stabilizer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5655402A true JPS5655402A (en) | 1981-05-16 |
Family
ID=15077991
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13229779A Pending JPS5655402A (en) | 1979-10-13 | 1979-10-13 | Suspension stabilizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5655402A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57119902A (en) * | 1981-01-16 | 1982-07-26 | Kuraray Co Ltd | Dispersion stabilizer for suspension polymerization of vinyl compound |
JPH01188309A (en) * | 1988-01-22 | 1989-07-27 | Toyoda Gosei Co Ltd | Manufacture of polyvinyl chloride material for extrusion molding |
JPH03140303A (en) * | 1989-10-26 | 1991-06-14 | Kuraray Co Ltd | Dispersion auxiliary and stabilizer for suspension polymerization of vinyl chloride |
JPH0625313A (en) * | 1991-06-21 | 1994-02-01 | Sumitomo Chem Co Ltd | Suspension polymerization of vinyl chloride monomer |
JP2010202840A (en) * | 2009-03-06 | 2010-09-16 | Denki Kagaku Kogyo Kk | Modified polyvinyl alcohol and method for producing the same |
WO2012114441A1 (en) * | 2011-02-21 | 2012-08-30 | 電気化学工業株式会社 | Dispersant for suspension polymerization, vinyl chloride resin and method for producing same |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54112985A (en) * | 1978-02-23 | 1979-09-04 | Nippon Synthetic Chem Ind Co Ltd:The | Suspension polymerization of vinyl compound |
-
1979
- 1979-10-13 JP JP13229779A patent/JPS5655402A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54112985A (en) * | 1978-02-23 | 1979-09-04 | Nippon Synthetic Chem Ind Co Ltd:The | Suspension polymerization of vinyl compound |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57119902A (en) * | 1981-01-16 | 1982-07-26 | Kuraray Co Ltd | Dispersion stabilizer for suspension polymerization of vinyl compound |
JPH0224842B2 (en) * | 1981-01-16 | 1990-05-30 | Kuraray Co | |
JPH01188309A (en) * | 1988-01-22 | 1989-07-27 | Toyoda Gosei Co Ltd | Manufacture of polyvinyl chloride material for extrusion molding |
JPH0649288B2 (en) * | 1988-01-22 | 1994-06-29 | 豊田合成株式会社 | Method for producing polyvinyl chloride material for extrusion molding |
JPH03140303A (en) * | 1989-10-26 | 1991-06-14 | Kuraray Co Ltd | Dispersion auxiliary and stabilizer for suspension polymerization of vinyl chloride |
JPH0625313A (en) * | 1991-06-21 | 1994-02-01 | Sumitomo Chem Co Ltd | Suspension polymerization of vinyl chloride monomer |
JP2010202840A (en) * | 2009-03-06 | 2010-09-16 | Denki Kagaku Kogyo Kk | Modified polyvinyl alcohol and method for producing the same |
WO2012114441A1 (en) * | 2011-02-21 | 2012-08-30 | 電気化学工業株式会社 | Dispersant for suspension polymerization, vinyl chloride resin and method for producing same |
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