Foam inhibitors and their use for defoaming aqueous systems

Details Foam inhibitors and their use for defoaming aqueous systems Foam inhibitors and their use for defoaming aqueous systems

1979-10-25

1982-07-27

Lovering, Richard D.

Compositions

Preservative agents

Anti-corrosion

252 99, 252358, B01D 1904

Patent

active

043416560

ABSTRACT:
Foam inhibitors for aqueous systems which contain a fatty acid salt of a polyvalent metal, especially an alkaline earth metal or aluminium, an anionic surfactant or a non-ionic reaction product of an alcohol or an alkyl phenol with an alkylene oxide, an aliphatic alcohol of 5 to 18 carbon atoms or a mixture of such alcohols, and a hydrophobic organic solvent or solvent mixture; these foam inhibitors are stable, they are miscible to any extent with water or organic solvents and can be used e.g. for defoaming aqueous dyebaths, treatment baths, printing pastes, pulp suspensions, paints, detergent solutions or also wastewaters.

REFERENCES:
patent: 1947725 (1934-02-01), MacArthur et al.
patent: 1957513 (1934-05-01), Wolfson
patent: 3076768 (1963-02-01), Boylan
patent: 3492242 (1970-01-01), Carney et al.
patent: 3657136 (1972-04-01), Lieberman et al.
patent: 3751373 (1973-08-01), Lieberman et al.
patent: 3869412 (1975-03-01), Waag
patent: 3920559 (1975-11-01), Elting
Ross: "Chemical Antifoaming Agents", Chemical Industries, May 1949, pp. 757-759.

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