JPS5485288A - Suspension stabilizer for polymerization of vinyl compound - Google Patents

Suspension stabilizer for polymerization of vinyl compound

Info

Publication number
JPS5485288A
JPS5485288A JP15299877A JP15299877A JPS5485288A JP S5485288 A JPS5485288 A JP S5485288A JP 15299877 A JP15299877 A JP 15299877A JP 15299877 A JP15299877 A JP 15299877A JP S5485288 A JPS5485288 A JP S5485288A
Authority
JP
Japan
Prior art keywords
suspension stabilizer
polymerization
vinyl
pref
saponification
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
JP15299877A
Other languages
Japanese (ja)
Other versions
JPS5546641B2 (en
Inventor
Kiyoomi Yamazawa
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 JP15299877A priority Critical patent/JPS5485288A/en
Publication of JPS5485288A publication Critical patent/JPS5485288A/en
Publication of JPS5546641B2 publication Critical patent/JPS5546641B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

PURPOSE: To provide a suspension stabilizer for the polymerization of vinyl compounds, comprising a lactone-ring-containing modified polyvinyl alcohol having a specific degree of saponification, and useful for the production of a polymer free of fish-eye.
CONSTITUTION: A modified polyvinyl alcohol containing 0.1W15 mol%, pref. 3W10 mol% of lactone ring and having a degree of saponification of 60W95%, pref. 75W90%, is used as a suspension stabilizer for the polymerization of a vinyl compound such as vinyl chloride. The suspension stabilizer is prepared by (1) copolymerizing vinyl acetate with an ethylenic unsaturated carboxylic acid alkyl ester, and (2) saponyfying the copolymer in absolute alcohol in the pesence of 0.001W 0.06 mole equivalent, based on the vinyl acetate, of an alkali catalyst. The vinyl chloride polymer prepared by using the above suspension stabilizer has high plasticizer absorption, and gives a film free from fish-eye.
COPYRIGHT: (C)1979,JPO&Japio
JP15299877A 1977-12-21 1977-12-21 Suspension stabilizer for polymerization of vinyl compound Granted JPS5485288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15299877A JPS5485288A (en) 1977-12-21 1977-12-21 Suspension stabilizer for polymerization of vinyl compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15299877A JPS5485288A (en) 1977-12-21 1977-12-21 Suspension stabilizer for polymerization of vinyl compound

Publications (2)

Publication Number Publication Date
JPS5485288A true JPS5485288A (en) 1979-07-06
JPS5546641B2 JPS5546641B2 (en) 1980-11-25

Family

ID=15552710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15299877A Granted JPS5485288A (en) 1977-12-21 1977-12-21 Suspension stabilizer for polymerization of vinyl compound

Country Status (1)

Country Link
JP (1) JPS5485288A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968302A (en) * 1982-10-12 1984-04-18 Unitika Chem Kk Dispersion stabilizer for suspension polymerization of vinyl compound
EP1099672A3 (en) * 1999-11-11 2002-04-10 Kuraray Co., Ltd. Ceramic-molding binder

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654247A (en) * 1968-02-23 1972-04-04 Du Pont Production of 93-100% alcoholyzed polyvinyl alcohol having low cold water solubles content and improved slurrying properties
JPS4936797A (en) * 1972-08-11 1974-04-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654247A (en) * 1968-02-23 1972-04-04 Du Pont Production of 93-100% alcoholyzed polyvinyl alcohol having low cold water solubles content and improved slurrying properties
JPS4936797A (en) * 1972-08-11 1974-04-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968302A (en) * 1982-10-12 1984-04-18 Unitika Chem Kk Dispersion stabilizer for suspension polymerization of vinyl compound
EP1099672A3 (en) * 1999-11-11 2002-04-10 Kuraray Co., Ltd. Ceramic-molding binder

Also Published As

Publication number Publication date
JPS5546641B2 (en) 1980-11-25

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