Title:
OIL-IN-WATER-TYPE EMULSION DEFOAMING AGENT, RESIN WATER DISPERSION CONTAINING SAME, AND WATER-SOLUBLE RESIN AQUEOUS SOLUTION
Document Type and Number:
WIPO Patent Application WO/2020/091003
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a defoaming agent exhibiting excellent defoaming properties even when applied to an aqueous foam liquid (a resin water dispersion, a water-soluble resin aqueous solution, etc.). The present invention relates to an oil-in-water-type emulsion defoaming agent characterized by containing: at least one polyether compound selected from the group consisting of a compound represented by formula 1, a compound represented by formula 2, a compound represented by formula 3, and a compound represented by formula 4; a water-soluble polymer; a nucleating agent; and water. R1 is a reactive residual group of an active hydrogen compound, R2 and R3 are each a monovalent organic group, R4 is a divalent organic group, AO and OA are reactive residual groups of oxyalkylene or glycidol, alkyl glycidyl ether or alkenyl glycidyl ether, n is 1-100, s is 1-10, p is 0-10, q is 0-9, r is 0-9, m is 0-9, [p+r] is 1-10, [p+q+r] is 1-10, and [p+q+r+m] is 2-10.
Inventors:
MATSUMURA YOHEI (JP)
TANAKA YUKI (JP)
HIRAKAWA TAKESHI (JP)
TANAKA YUKI (JP)
HIRAKAWA TAKESHI (JP)
Application Number:
PCT/JP2019/042898
Publication Date:
May 07, 2020
Filing Date:
October 31, 2019
Export Citation:
Assignee:
SAN NOPCO KK (JP)
International Classes:
B01D19/04; C08K3/36; C08K5/05; C08K5/10; C08K5/103; C08K5/20; C08L71/02; C08L91/00; C08L91/06; C08L101/00; C08L101/14
Domestic Patent References:
| WO2016158177A1 | 2016-10-06 |
Foreign References:
| JP2004305882A | 2004-11-04 | |||
| JP2013144287A | 2013-07-25 | |||
| JP2014083466A | 2014-05-12 |
Attorney, Agent or Firm:
SAKURAI Ken-ichi (JP)
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