Title:
Dispersion stabilizer for suspension polymerization, and a manufacturing method of vinyl resin using it
Document Type and Number:
Japanese Patent JP6212782
Kind Code:
B2
Abstract:
There is provided a dispersion stabilizer for suspension polymerization of a vinyl compound, which is composed of an aqueous emulsion, wherein the aqueous emulsion comprises a solid comprising (A) a polyvinyl alcohol, (B) a polyvinyl ester, and (C) a graft polymer produced by graft-polymerizing a vinyl ester monomer to a polyvinyl alcohol; wherein the amount of (A) the polyvinyl alcohol is 0.1 to 18 % by mass based on the total amount of (A), (B) and (C); wherein the amount of (C) the graft polymer is 7 to 80 % by mass based on the total amount of (A), (B) and (C); and wherein a weight-average molecular weight of the solid as determined by gel permeation chromatography is 1,100,000 or less. Such a dispersion stabilizer for suspension polymerization exhibits excellent polymerization stability and excellent handleability. In addition, a vinyl resin obtained using the dispersion stabilizer for suspension polymerization has good plasticizer absorbency.
Inventors:
Tadahito Fukuhara
Yosuke Kumaki
Yosuke Kumaki
Application Number:
JP2014513851A
Publication Date:
October 18, 2017
Filing Date:
November 01, 2013
Export Citation:
Assignee:
KURARAY CO.,LTD.
International Classes:
C08F261/04; C08F2/20; C08L29/04; C08L31/02; C08L51/00
Domestic Patent References:
| JP2005082665A |
Attorney, Agent or Firm:
Shigeki Nakatsugu
Shunichiro Ito
Shunichiro Ito
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