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Patent Searching and Data


Title:
DISPERSION STABILIZER FOR SUSPENSION POLYMERIZATION, AND MANUFACTURING METHOD FOR VINYL RESIN
Document Type and Number:
WIPO Patent Application WO/2015/019613
Kind Code:
A1
Abstract:
 Provided is a dispersion stabilizer for suspension polymerization having outstanding water solubility and handling properties. When said dispersion stabilizer for suspension polymerization is used in the suspension polymerization of a vinyl compound, even when used in small quantities it is possible to obtain a vinyl resin which has a high absorption of a plasticizer and which is easy to work, the residual monomer component can be removed easily from the resultant vinyl resin, and there is minimal formation of large rough particles in the vinyl resin obtained. This dispersion stabilizer for suspension polymerization of a vinyl compound contains a vinyl alcohol polymer (A) having a degree of saponification of 20mol% or greater but less than 65mol%, a viscosity average degree of polymerization (P) of 100 or greater but less than 600, a C6-C18 aliphatic hydrocarbon group on the terminal thereof, and an anionic group on the side chain thereof.

Inventors:
FUKUHARA, Tadahito (7471, Tamashimaotoshima, Kurashiki-sh, Okayama 50, 〒7138550, JP)
KUMAKI, Yosuke (7471, Tamashimaotoshima, Kurashiki-sh, Okayama 50, 〒7138550, JP)
Application Number:
JP2014/004113
Publication Date:
February 12, 2015
Filing Date:
August 06, 2014
Export Citation:
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Assignee:
KURARAY CO., LTD. (1621, Sakazu Kurashiki-sh, Okayama 01, 〒7100801, JP)
International Classes:
C08F2/20; C08F8/12; C08F18/04
Domestic Patent References:
WO1991015518A11991-10-17
Foreign References:
JPH09183805A1997-07-15
JPS5425990A1979-02-27
JPS55137105A1980-10-25
JPS59166505A1984-09-19
JPS5425990A1979-02-27
JPH10259213A1998-09-29
JP2002069105A2002-03-08
JP2007070531A2007-03-22
JPH0195103A1989-04-13
JPH0680710A1994-03-22
JPS5728121A1982-02-15
JPS57105410A1982-06-30
Other References:
See also references of EP 3031829A4
AKIO NAKAJIMA, KOBUNSHI-KAGAKU, vol. 6, 1949
TAKAYUKI OTSU: "Kaitei Kobunshi Gosei No Kagaku", 1979
AKIO NAKAJIMA: "Polymer Science", vol. 6, 1949, article "Kobunshi-Kagaku"
KOBUNSHI KANKO KAI, 1984, pages 246 - 249
MACROMOLECULES, vol. 10, 1977, pages 532
Attorney, Agent or Firm:
KAMADA, Koichi (8th Fl, UMEDA PLAZA BLDG. ANNEX 4-3-25, Nishitenma, Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
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