MIXTURE ACTING DEFOAMING AND DEAERATION OF FOAMABLE AQUEOUS MEDIUM

    公开(公告)号:JPH08257305A

    公开(公告)日:1996-10-08

    申请号:JP5490096

    申请日:1996-03-12

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain deforming and/or deaerating agents showing high activity even at about room temp. by using oil-in-water type emulsions based on an oil phase such as an ester of a higher alcohol or a sugar alcohol and a fatty acid. SOLUTION: The oil phase comprises an alcohol having more than 12 carbon atoms which is distillation residues obtained in the course of the production of higher alcohols, an ester of a sugar alcohol having at least 4 OH groups or the like and a fatty acid having more than 20 carbon atoms in a molar ratio more than 1, and fatty acid esters, polyethylene waxes or the like. As the case may be, hydrocarbons having >=200 deg.C b.p. and fatty acids or the like are added. And the oil phase makes up 5-75 wt.% of the emulsion, and the deforming and/or deaerating agents for aq. media prone to forming are made based on the oil-in-water type emulsions.

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