Henkel Kommanditgesellschaft Auf Aktien

Henkel Corporation

Juan C Wuhrmann

Heinz Mueller

Adolf Asbeck

Karl-Dieter Brands

Jochen Heidrich

Karl-Heinz Schmid

Brigitte Giesen

Klaus Schumann

Michael Neuss

Wolfgang Seiter

Birgit Middelhauve

Theodor Altenschoepfer

Wolfgang Schmidt

Edmund Schmadel

Dagmar Zaika

Karl Dieter Brands

Fatty alcohol (ether) sulfates which are obtained by co-sulfating mixtures of (a) C.sub.8-22 fatty alcohols and (b) C.sub.8-22 fatty alcohol ethoxylates containing an average of 1.9 to 3.9 ethylene oxide units in a ratio by weight of 20:80 to 80:20, and then neutralizing the mixtures thus co-sulfated with aqueous bases. The substances have distinctly improved low-temperature behavior in relation to ether sulfates with comparable degrees of ethoxylation, and are useful as components of surface-active compositions.

Fatty alcohol (ether) sulfates with improved low-temperature behavior

The formation of troublesome microfoams in aqueous lacquer and synthetic resin dispersions, particularly in gloss lacquers, is prevented by the addition of from 0.01 to 1.5% by weight of a silicone-free foam inhibitor mixture. These foam inhibitor mixtures contain (a) from 70 to 98% by weight of a liquid, branched C.sub.16 -C.sub.30 alcohol, (b) from 0.5 to 20% by weight of hard paraffin, and (c) from 0.05 to 5% by weight of hydrophobized finely divided silica, and, optionally, small quantities of other ingredients.

Foam inhibitors for aqueous dispersions and solutions of synthetic resins

The formation of troublesome microfoams in aqueous lacquer and synthetic resin dispersions, particularly in gloss lacquers, is prevented by the addition of from about 0.01 to about 1.5% by weight of a silicone-free foam inhibitor mixture. This mixture consists of (a) from about 70 to about 98% by weight of a mineral oil liquid at room temperature or a mixture of such mineral oil with a C.sub.16 -C.sub.30 branched alcohol of the following formula

Foam inhibitors for aqueous synthetic resin compositions

Defoaming agents for substantially surfactant-free detergents consisting of from about 0.05 to 25 parts by weight of pyrogenic, hydrophobized silica and from about 1 to 30 parts by weight of either a paraffin wax or mixture of paraffin waxes, both of which are solid at room temperature, i.e., the wax or mixture of waxes has a solidification point ranging from about 35.degree. to 120.degree. C. The defoaming agents may be liquid dispersions of the silica and paraffin wax in about 70 to 96 parts by weight of either branched primary alcohols (C.sub.18 -C.sub.30), preferably Guerbet alcohols, or mineral oils. The defoaming agents may also be solid compositions, wherein the paraffin wax and silica are deposited on solid carriers.

Paraffin-containing defoaming compositions and detergent compositions

Foam regulators particularly suitable for use in surfactant-containing compositions, comprising a mixture of paraffin hydrocarbons and hydrophobic silica, preferably admixed with a carrier.

Foam regulators containing paraffin hydrocarbons and hydrophobic silica

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Duesseldorf, Germany

Juan C Wuhrmann