The invention relates to the use of a polysiloxane having a plurality of siloxane groups and at least one tertiary amide group covalently linked as a pending and/or terminal group to the polysiloxane, as a defoaming agent in a liquid composition.

An antifoam granule includes a carrier and an antifoam compound deposited on the carrier. The antifoam granule is formed using a method that includes providing an emulsion and contacting the emulsion with a carrier to deposit the antifoam compound on the carrier and form the antifoam granule. The emulsion includes an oil phase, an aqueous phase, and a silicone polyether. The oil phase includes an antifoam compound. The antifoam compound includes a hydrophobic fluid and a hydrophobic filler dispersed in the hydrophobic fluid. The aqueous phase includes a binder and water. The emulsion is formed using a method that includes combining the oil phase, the aqueous phase, and the silicone polyether to form the emulsion. The antifoam granule is also utilized in a method of facilitating rinsing of a detergent from a substrate that includes applying the detergent, including the antifoam granule, to the substrate and rinsing the substrate.

An antifoam granule includes a carrier and an antifoam compound deposited on the carrier. The antifoam granule is formed using a method that includes providing an emulsion and contacting the emulsion with a carrier to deposit the antifoam compound on the carrier and form the antifoam granule. The emulsion includes an oil phase, an aqueous phase, and a silicone polyether. The oil phase includes an antifoam compound. The antifoam compound includes a hydrophobic fluid and a hydrophobic filler dispersed in the hydrophobic fluid. The aqueous phase includes a binder and water. The emulsion is formed using a method that includes combining the oil phase, the aqueous phase, and the silicone polyether to form the emulsion. The antifoam granule is also utilized in a method of facilitating rinsing of a detergent from a substrate that includes applying the detergent, including the antifoam granule, to the substrate and rinsing the substrate.

Defoamer preparations contain a polyorganosiloxane having aryl groups bonded to silicon at a ring carbon, filler particles and/or silicone resin particles, and a polyoxyalkylene polyether containing oxypropylene moieties. In addition to being efficient and compatible, the defoamer compositions retain their efficiency, especially in liquid detergents, after storage.

Defoamer preparations contain a polyorganosiloxane having aryl groups bonded to silicon at a ring carbon, filler particles and/or silicone resin particles, and a polyoxyalkylene polyether containing oxypropylene moieties. In addition to being efficient and compatible, the defoamer compositions retain their efficiency, especially in liquid detergents, after storage.

A defoaming agent including a polymer, the polymer including a repeating unit represented by the following general formula (1); and a repeating unit represented by the following general formula (3): ##STR00001##
wherein in the general formula (1), X.sup.1 is a repeating unit obtainable by polymerization of a first ethylenic unsaturated group; Y.sup.1 is a side chain including a linear or branched polysiloxane structure, the polysiloxane structure having a polymerization degree of 5 to 300; and Z.sup.1 is a linking group linking the repeating unit X.sup.1 and the side chain Y.sup.1; ##STR00002##
wherein in the general formula (3), X.sup.2 is a repeating unit obtainable by polymerization of a second ethylenic unsaturated group, Y.sup.2 is a C.sub.1-30 hydrocarbyl side chain; and Z.sup.2 is a linking group linking the repeating unit X.sup.2 and the side chain Y.sup.2.

A defoaming agent comprising: a polymer comprising a repeating unit represented by the following general formula (1): ##STR00001##
where in the general formula (1), X.sup.1 is a repeating unit obtainable by polymerization of an ethylenic unsaturated group; Y.sup.1 is a side chain comprising a linear or branched polysiloxane structure, the polysiloxane structure comprising a repeating unit represented by the following general formula (2) and having a polymerization degree of 5 to 300; and Z.sup.1 is a linking group linking the repeating unit X.sup.1 and the side chain Y.sup.1; ##STR00002##
wherein in the general formula (2), R.sup.1 and R.sup.2 are each independently an organic group having a carbon number of 1 to 18.

The present invention relates to a process for controlling the antifoam injection based on the pressure differential of the column. More specifically, the present invention relates to a process for controlling the antifoam injection based on the pressure differential of an aromatics extraction unit using an intelligent differential pressure transmitter. The controller communicates with the antifoam injection system so that the antifoam is injected to the unit only when it is required.

There is provided herein a low foam surfactant composition comprising: (a) di-trisiloxane alkoxylate component of the general formula (I):
(R.sup.1R.sup.2R.sup.3SiO).sub.2(R.sup.4)SiR.sup.5Si(R.sup.6)(OSiR.sup.7R.sup.8R.sup.9).sub.2(I);
and, (b) mono-trisiloxane alkoxylate component of the general formula (II):
(R.sup.12R.sup.13R.sup.14SiO).sub.2Si(R.sup.15)R.sup.16(II)
wherein di-trisiloxane alkoxylate (I) is soluble in mono-trisiloxane alkoxylate and methods of making the same.

The present application relates to cleaning and treatment compositions comprising a material that reduces foam and methods of making and using such material and compositions. Such compositions comprise benefit agents that typically impact the performance of antifoams yet in the present compositions antifoaming properties of antifoams are maintained.