ANTIFOAMER COMPOSITION

Japanese Patent JP3785434

B2

PROBLEM TO BE SOLVED: To obtain a polyether based antifoamer composition with which an excellent anti-foaming property can be obtained by using a compound which is polymerised by adding a specific amount of a specific alkylene oxide per mol of a specific amide compound to be obtained by reaction of amines having primary amino group with carboxylic acids.
SOLUTION: An antifoamer composition which develops an excellent anti- forming property to a bubble to be generated in various processes of a paper pulp manufacturing industry, a building industry, a die industry, or the like is prepared from a compound which is polymerised by adding average 5 to 20 mol of a 2-4C alkylene oxide per mol of 12-45C amide compound having at least one active hydrogen group, obtained by a reaction of amines having a primary amino group with carboxylic acids. As the amide compound to be used, a compound obtained by a reaction of polyamines with monocarboxylic acids and/or hydroxymonocarboxylic acids, or a compound to be obtained by a reaction of monoamines with polycarboxylic acids is preferable.

JPS55102412	SELFFEMULSIFYING ANTIFROTHING AGENT
WO/2017/011126	LOW FOAM SURFACTANT COMPOSITION AND METHODS OF MAKING THE SAME
JP3806741	DEFOAMING AGENT COMPOSITION

Yoshikazu Goto

JP10014298A

June 14, 2006

March 28, 1998

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San Nopco Co., Ltd.

B01D19/04; C04B24/32; C08G65/26; C08G65/28; C08L71/02; C09D7/12; C09D171/02; D06P1/607; D21H17/07; C04B103/50; (IPC1-7): B01D19/04; C04B24/32; C08G65/26; C08L71/02; C09D7/12; C09D171/02; D06P1/607; D21H17/07; //C04B103:50

JP3068401A
JP11199291A
JP9117607A
JP10279790A
JP2003166199A

Kenichi Sakurai
Hirofumi Hayashi

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