JPS5655402A - Suspension stabilizer - Google Patents

Suspension stabilizer

Info

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
Application number
JP13229779A
Other languages
Japanese (ja)
Inventor
Toshio Asano
Yasuo Taniguchi
Haruo Funemi
Koichi Ito
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.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
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 Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP13229779A priority Critical patent/JPS5655402A/en
Priority to ES495811A priority patent/ES495811A0/en
Priority to US06/195,737 priority patent/US4388442A/en
Priority to DE19803038643 priority patent/DE3038643A1/en
Publication of JPS5655402A publication Critical patent/JPS5655402A/en
Pending legal-status Critical Current

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
JP13229779A 1979-10-13 1979-10-13 Suspension stabilizer Pending JPS5655402A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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