Abstract: 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 formulaR.sup.1 --CH.sub.2 --CH.sub.2 --CHR.sup.2 --CH.sub.2 --CH.sub.2 --CH.sub.2 OH (I)in which R.sup.1 and R.sup.2 are C.sub.4 -C.sub.16 alkyl radicals, (b) from about 0.2 to about 5% by weight of a microcrystalline wax, (c) from about 0.5 to about 20% by weight of hard paraffin, (d) from 0.05 to 5% by weight of hydrophobized finely divided silica, and (e) from 0 to about 10% by weight of a soft paraffin (M.p. 32.degree.-42.degree. C.). Component (a) preferably consists of a mixture of mineral oil and branched alcohol (I) in a ratio of from 50:1 to 1:1.

Abstract: 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.

Abstract: 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.

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