Brewing composition

Abstract

The foam control composition comprises component (A) and component (B). Component (A) comprises a unit of the following formula: [SiO 4 / 2 ] a [(R 1 O)SiO 3 / 2 ] b [(R 2 O)SiO 3 / 2 ] b’ [(R 1 O)2SiO 2 / 2 ] c [(R 1 O)(R 2 O)SiO 2 / 2 ] c’ [(R 2 O)2SiO 2 / 2 ] c” [(R 1 O)3SiO 1 / 2 ] d [(R 1 O)2(R 2 O)SiO 1 / 2 ] d’ [(R 1 O)(R 2 O)2SiO 1 / 2 ] d” [(R 2 O)3SiO 1 / 2 ] d’’’ Component (B) comprises a filler.

Description

Technical Field

[0001] The present invention relates to foam control compositions. More specifically, the present invention relates to multi-component foam control compositions. The present invention also relates to a process for preparing a foam control composition and its use.

Background Art

[0002] For example, in an aqueous system containing a surfactant such as a detergent, the generation of foam is undesirable under certain conditions. Therefore, detergents often contain components for controlling foam. For example, in laundry applications, the use of front-loading (drum-type) washing machines creates conditions where foam is easily generated. Siloxane-based defoamers have been found to be particularly useful in these applications. However, such defoamers are typically complex and expensive to manufacture.

[0003] Furthermore, domestic wastewater discharged from washing machines typically contains detergents, oils, and dirt, which are sent to municipal facilities for treatment and purification. Thus, the washing process can provide a pathway for siloxanes to enter the ecosystem. Once in the environment, polydiorganosiloxanes (M-D type materials), such as polydimethylsiloxane (PDMS), are known to decompose via a cyclization pathway into undesirable low molecular weight cyclic siloxanes, such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane, associated with known polydiorganosiloxane defoamers due to the presence of repeating dimethylsiloxy units. For example, it is known that α,ω-silanol-terminated siloxane fluids thermally decompose to form cyclic siloxanes and the terminal silanol groups are regenerated. The decomposition or depolymerization of polydiorganosiloxanes can also occur by acid or alkaline catalysts, which attack the polymer backbone to form cyclic siloxanes and shorten the polymer fragments.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Therefore, it would be desirable to provide a composition that can overcome the aforementioned drawbacks.

Means for Solving the Problem

[0005] Embodiments of a foam control composition are provided.

[0006] In one embodiment, the foam control composition comprises component (A) and component (B). Component (A) comprises units of the following formula. [SiO 4 / 2 a [(R 1 O)SiO 3 / 2 b [(R 2 O)SiO 3 / 2 b’ [(R 1 O)2SiO 2 / 2 c [(R 1 O)(R 2 O)SiO 2 / 2 c’ [(R 2 O)2SiO 2 / 2 c” [(R 1 O)3SiO 1 / 2 d [(R 1 O)2(R 2 O)SiO 1 / 2 d’ [(R 1 O)(R 2 O)2SiO 1 / 2 d” [(R 2 O)3SiO 1 / 2 d’’’ In the formula, R 1 is a substituted or unsubstituted linear or branched hydrocarbon group having 6 to 40 carbon atoms, R 2 ​​​​​​​​​​is a hydrogen or a saturated or unsaturated group having 1 to 12 carbon atoms. Subscripts a, b, b’, c, c’, c”, d, d’, d”, and d’’’ are such that a + b + b’ + c + c’ + c” + d + d’ + d” + d’’’ is equal to 2 or more, and component (A) is all R in component (A) 1 groups and R 2 groups, based on the total of the groups, have values in the range of 0.1 to 20 mol% of R 2 groups, with the limitation that each has a value in the range of 0 to 100,000. Component (B) contains a filler.

[0007] In certain embodiments, subscripts a, b, b’, c, c’, c”, d, d’, d”, and d’’’ each have a value in the range of 0 to 100.

[0008] In certain embodiments, pairs of adjacent carbon atoms of R 1 are interrupted by an oxygen atom or a nitrogen atom.

[0009] Preferably, the composition contains at least 85 wt% of component (A).

[0010] In some embodiments, component (A) is a hydrophobic fluid having a surface tension of 26 to 45 millinewtons per meter.

[0011] In other embodiments, component (A) has a weight average molecular weight in the range of 250 to 20,000 Daltons.

[0012] In other embodiments, component (A) consists of units having silicon atoms chemically bonded to 4 oxygen atoms.

[0013] In one embodiment, component (A) contains R 1 groups and R 2 groups in the range of 1 to 15 mol% based on the total of all R 2 groups in component (A).

[0014] In other embodiments, R 2is selected from the group consisting of hydrogen, methyl group, and ethyl group. In certain embodiments, R 2 all R 1 groups and R 2 groups contain hydrogen radicals in an amount of 5 mol% or less based on the total of all R

[0015] Preferably, the filler contains silicon oxides, metal oxides, or mixtures thereof.

[0016] In some embodiments, the composition further comprises component (C). Component (C) is a resin containing M units and Q units. At least one M unit is of the formula (R 3 )3SiO 1 / 2 and at least one Q unit is of the formula SiO2. In these embodiments, R 3 is a hydrogen atom, a saturated or unsaturated group having 1 to 40 carbon atoms, or a saturated or unsaturated group having 6 to 40 carbon atoms and at least one alkyl group singly bonded to an oxygen atom.

[0017] In other embodiments, the composition further comprises component (D). Component (D) contains one or more water-insoluble organic compounds. In certain ones of these embodiments, at least one of the one or more water-insoluble organic compounds has a boiling point higher than 100 °C at 900 - 1100 hPa. In some embodiments, the composition exhibits a viscosity of 1 - 30,000 mPa·s and a density of 0.9 - 1.20 g / mL at 25 °C and 1014.25 hPa.

[0018] Embodiments of aqueous detergents are also provided. In certain embodiments, the aqueous detergent includes embodiments of foam control compositions and surfactant systems. The surfactant system includes at least one surfactant.

DETAILED DESCRIPTION OF THE INVENTION

[0019] It should be understood that the present invention can envision various alternative orientations and step sequences, unless the contrary is explicitly specified. Also, it should be understood that the specific materials, articles, and methods described in the following specification are merely exemplary embodiments of the concepts of the present invention. Accordingly, specific characteristics, conditions, or other physical properties relating to the disclosed embodiments should not be considered limiting unless otherwise explicitly stated.

[0020] In certain embodiments, a foam control composition is provided. This composition is suitable for use in controlling the amount of foam in an aqueous system. For example, the composition can be provided as part of an aqueous laundry detergent and utilized in laundry applications. However, the foam control composition is not limited to detergent applications and can be utilized in other types or kinds of cleaning compositions. Further, the composition may be utilized in applications other than laundry. For example, the composition may also be suitable for controlling foam in applications such as, for example, fabrics, pulp, hard surface cleaning, wastewater, natural gas scrubbing, polymer dispersions, or may have agricultural applications or other applications involving aqueous systems.

[0021] The foam control composition comprises component (A). In some embodiments, component (A) is a hydrophobic fluid. Component (A) comprises an organosilicon compound. More preferably, component (A) comprises an alkyl silicate. In particular, component (A) comprises units of the following formula (I). [SiO 4 / 2 a [(R 1 O)SiO 3 / 2 b [(R 2 O)SiO 3 / 2 b’ [(R 1 O)2SiO 2 / 2 c [(R 1 O)(R 2 O)SiO 2 / 2 c’ [(R 2 O)2SiO 2 / 2 c” [(R 1 O)3SiO​​​​​​1 / 2 d [(R 1 O)2(R 2 O)SiO 1 / 2 d’ [(R 1 O)(R 2 O)2SiO 1 / 2 d” [(R 2 O)3SiO 1 / 2 d’’’ In certain embodiments, R 1 is a substituted or unsubstituted linear or branched hydrocarbon group having 6 to 40 carbon atoms, and R 2 is hydrogen or a saturated or unsaturated group having 1 to 12 carbon atoms. The subscripts a, b, b', c, c', c'', d, d', d'' and d''' are such that a + b + b' + c + c' + c'' + d + d' + d'' + d''' is 2 or more, and component (A) has values in the range of 0 to 100,000 each, subject to the limitation that component (A) contains R 1 groups in the range of 0.1 to 20 mol% based on the total of all R 2 groups and R 2 groups in component (A).

[0022] As described above, the subscripts a, b, b', c, c', c'', d, d', d'' and d''' have values in the range of 0 to 100,000 each. In certain embodiments, the subscripts a, b, b', c, c', c'', d, d', d'' and d''' have values in the range of 0 to 100 each. Preferably, the subscripts a, b, b', c, c', c'', d, d', d'' and d''' have values in the range of 0 to 50 each, and more preferably in the range of 0 to 10 each. It should be further noted that the values of the specific subscripts a, b, b', c, c', c'', d, d', d'' and d''' refer to the average content of each structural unit in a specific compound of component (A).

[0023] As described above, the sum of the subscripts a, b, b', c, c', c'', d, d', d'' and d''' is 2 or more. In some embodiments, component (A) is [R 1 ​​​​O]SiO 3 / 2 units and [(R 2 O)SiO 3 / 2 units may contain more [SiO 4 / 2 units. In other embodiments, component (A) is [R 1 O]SiO 3 / 2 units and [(R 2 O)SiO 3 / 2 units may contain less [SiO 4 / 2 units. In some embodiments, component (A) is [(R 1 O)2SiO 2 / 2 units, [(R 1 O)(R 2 O)SiO 2 / 2 units and [(R 2 O)2SiO 2 / 2 units may contain more [SiO 4 / 2 units. In other embodiments, component (A) is [(R 1 O)2SiO 2 / 2 units, [(R 1 O)(R 2 O)SiO 2 / 2 units and [(R 2 O)2SiO 2 / 2 units may contain less [SiO 4 / 2 units. In still other embodiments, component (A) is [(R 1 O)3SiO 1 / 2 units, [(R 1 O)2(R 2 O)SiO 1 / 2 units, [(R 1 O)(R 2 O)2SiO 1 / 2 units, and [(R 2 O)3SiO 1 / 2 units may contain more [SiO 4 / 2 units. Alternatively, component (A) is [(R 1 O)3SiO 1 / 2 units, [(R 1 O)2(R 2 O)SiO 1 / 2 units, [(R 1 O)(R 2 O)2SiO 1 / 2Unit and [(R 2 O)3SiO 1 / 2 units may contain less than the total of [SiO 4 / 2 units. In these embodiments, the sum of the subscripts a, b, b’, c, c’, c”, d, d’, d”, and d’’’ is such that component (A) is 10 to 45 mole percent (mol%) of [SiO 4 / 2 units, 15 to 60 mol% of [R 1 O]SiO 3 / 2 units and [(R 2 O)SiO 3 / 2 units, 15 to 60 mol% of [(R 1 O)2SiO 2 / 2 units, [(R 1 O)(R 2 O)SiO 2 / 2 units and [(R 2 O)2SiO 2 / 2 , or 5 to 35 mol% of [(R 1 O)3SiO 1 / 2 units, [(R 1 O)2(R 2 O)SiO 1 / 2 units, [(R 1 O)(R 2 O)2SiO 1 / 2 units and [(R 2 O)3SiO 1 / 2 units can be selected to contain. In one such embodiment, component (A) contains 1 to 10 mol% of [SiO 4 / 2 units. In another embodiment, component (A) contains 15 to 45 mol% of [R 1 O]SiO 3 / 2 units and [(R 2 O)SiO 3 / 2 units. In other embodiments, component (A) contains 15 to 45 mol% of [(R 1 O)2SiO 2 / 2 units, [(R 1 O)(R 2 O)SiO 2 / 2 units and [(R 2 O)2SiO 2 / 2 . In yet other embodiments, the sum of the subscripts a, b, b’, c, c’, c”, d, d’, d”, d’’’ is such that component (A) is 15 to 35 mol% of [(R1 (O)3SiO 1 / 2 unit, [(R 1 (O)2(R 2 (O)SiO 1 / 2 unit, [(R 1 (O)(R 2 (O)2SiO 1 / 2 unit and [(R 2 (O)3SiO 1 / 2 units are selected to be included. When describing the mole % of a specific unit of component (A), it should be noted that the mole % described is based on the total number of units in component (A). The mole % of a specific type of unit is preferably determined based on standard analytical nuclear magnetic resonance spectroscopy 29 Si (NMR) technology. To determine the mole % of component (A), the units are 29 defined in the range of -75 to -120 ppm in the Si (NMR) spectrum.

[0024] R 1 and R 2 groups are independently selected from each other. In embodiments where R 1 is a substituted or unsubstituted linear or branched hydrocarbon group having 6 to 40 carbon atoms, adjacent carbon atoms of R 1 can be interrupted by one or more atoms of oxygen (O) or nitrogen (N). In other embodiments, R 2 is selected from the group consisting of hydrogen, methyl group, and ethyl group. In certain embodiments, R 2 contains hydrogen radicals in an amount of 9 mol% or less based on the total of all R 1 groups and R 2 groups in component (A). Preferably, R 2 contains hydrogen radicals in an amount of 5 mol% or less based on the total of all R 1 groups and R 2 groups in component (A). As described above, component (A) can contain R 1 groups in the range of 0.1 to 20 mol% based on the total of all R 2 groups and R 2 groups in component (A). However, in some embodiments, component (A) is all R in component (A) 1 groups and R2 R in the range of 1 to 15 mol% based on the total of the groups 2 is included.

[0025] Advantageously, when component (A) contains an alkyl silicate, it has been found that the foam control composition can control the amount of foam, for example, in an aqueous system. Furthermore, including the units of the above formula in component (A) can prevent the decomposition of component (A) into cyclic diorganosiloxanes. In embodiments where component (A) contains a polyalkyl silicate, component (A) contains units having silicon atoms chemically bonded to four oxygen atoms. Preferably, the polyalkyl silicate of component (A) does not contain SiC bonding groups. In these embodiments, component (A) may contain 90 wt% polyalkyl silicate based on the total weight of component (A). Preferably, in these embodiments, component (A) contains 95 wt% polyalkyl silicate based on the total weight of component (A). The wt% of component (A) is preferably determined by standard analysis 29 based on Si (NMR) technology. To determine the mol% of component (A), the units are 29 within the Si (NMR) spectrum, by standard analysis 29 using Si (NMR) technology, defined in the range of -75 to -120 ppm. In other embodiments, component (A) consists of units having silicon atoms chemically bonded to four oxygen atoms.

[0026] The alkyl silicate of the component (A) can be formed, for example, by hydrolysis of a silane compound, for example, a chlorosilane, an alkoxychlorosilane or an alkoxysilane of the general formula (II). (R 1 O) m Cl 4-m Si, [wherein m = 0, 1, 2, 3, or 4]. Preferably, the R 1 groups of the formula (II) are each independently selected and satisfy one of the conditions described above for the R 1 groups of the formula (I), and each R 2 is a group selected from the group consisting of hydrogen, a methyl group and an ethyl group.

[0027] Alternatively, the alkyl silicate of component (A) can be formed by reacting an oligomeric or polymeric methoxysilicate or ethoxysilicate with an alcohol R 1 OH, optionally in the presence of a catalyst. In this embodiment, R 1 is a group selected from groups satisfying one of the conditions described above for the group of formula (I) R 1 . Suitable catalysts include, for example, alkali metal hydroxides such as potassium hydroxide (KOH), or sodium methylate.

[0028] Alcohols suitable for use in the formation of component (A) can be selected from various primary, secondary, or tertiary saturated or unsaturated alcohols. In some embodiments, these alcohols have from 6 to 40 carbon atoms. In some of these embodiments, the alcohol can include carbon atom pairs interrupted by one or more atoms of O or N. Examples of suitable alcohols include anisyl alcohol, benzyl alcohol, cinnamyl alcohol, carvacrol, citronellol, cis-6-nonen-1-ol, cis-3-octen-ol, cyclohexanol, 1-decanol, 6,8-dimethylnonan-2-ol, dihydrocarveol, 2,6-dimethylheptan-2-ol, ebanol, eugenol, geraniol, 1-heptanol, hydrocinnamyl alcohol, cis-3-hexanol, trans-3-hexanol, cis-4-heptenol, isoborneol, isoeugenol, isomethol, isopregol, lauryl alcohol, linalool, linoleyl alcohol, menthol, a-methylbenzyl alcohol, nerol, nonyl alcohol, trans-2-nonen-1-ol, trans-2-cis-6-nonadienol, 1-octanol, 3-octanol, trans-2-octenol, oleyl alcohol, b-phenethyl alcohol, 2-phenylethanol, 3-phenylpropanol, 2-phenoxyethanol, stearyl alcohol, a-terpineol, tetrahydrogeraniol, tetrahydrolinalool, thymol, and trimethylcyclohexanol. Commercially available materials suitable for use in the formation of component (A) can have an alcohol alkoxylate group having a carbon atom interrupted by an oxygen atom. Such alcohol alkoxylates are sold under the trademarks Ecosurf™ or Tergitol™ and are available from the Dow Chemical Company, or are sold under the trademarks Emulan®, Lutensol® or Pluriol® and are available from BASF.

[0029] When component (A) is formed, component (A) can be substantially linear. However, component (A) may contain branches. Also, as described above, component (A) may be a hydrophobic fluid. In some embodiments, component (A) preferably has a surface tension of 26 to 45 millinewtons per meter (mN / m), more preferably 27 to 40 mN / m. The surface tension of component (A) can be measured using a force tensiometer such as a Kruess K100 Force Tensiometer. To measure the surface tension of component (A), first calibrate the tensiometer using a calibration weight and measure to within ±0.5 mg of the calibration weight. Test a deionized water sample as a reference and measure to within ±1.0 mN / m of 72.4 mN / m. Next, the surface tension of component (A) can be measured by filling a 4-ounce sample bottle with 37.5 mL of component (A) and placing it on a container stand. Raise the sample container stand until the sample surface is just below the bottom of the platinum-plated probe. The platinum-plated probe can be cleaned with an external heat source before use. The surface tension measurement is performed at 22°C using a wetting depth of 5 millimeters (mm), a speed-up of 5 mm / min, and a speed-down of 5 mm / min. Several measurements can be made after the first reading, and once equilibrium is reached, the average can be calculated to provide the surface tension.

[0030] In other embodiments, component (A) has a weight average molecular weight in the range of 250 to 20,000 Daltons (Da). The number average molecular weight (Mw) of component (A) is preferably in the range of 500 to 8,000 Da. The weight average molecular weight and the number average molecular weight can be determined by size exclusion chromatography (SEC) using a 1% THF solution of component (A) with a flow rate of 1 mL / min and an injection volume of 100 μL at 25°C, having a length of 300 mm and a width of 7.5 mm, and using a PLgel MIXED-B column and a tetrahydrofuran (THF) mobile phase available from Agilent Technologies, Inc. Also, component (A) is preferably measured at 25°C for 10 (s using a rheometer equipped with a cone and plate with a diameter of 25 mm according to DIN53019 -1)Measured under shearing speed conditions, it can exhibit viscosities in the range of 1 to 30,000 mPa. Preferably, under these conditions, component (A) exhibits viscosities in the range of 1 to 20,000 mPa·s. More preferably, under these conditions, component (A) exhibits viscosities in the range of 1 to 10,000 mPa·s. The density of component (A) can be in the range of 0.9 to 1.20 grams per milliliter (g / mL) at 25 °C and is measured as described in methods such as ASTM D333, ISO 2811, or DIN 51757. Unless otherwise indicated, the density of component (A) is measured at 1014.25 hPa and 20 °C, or at a temperature typically associated with room temperature conditions.

[0031] Preferably, the foam control composition comprises at least 85% by weight of component (A). However, the foam control composition also comprises component (B). Component (B) comprises a filler. Preferably, component (B) is a filler. In some embodiments, the foam control composition comprises the filler in an amount of 0.1 to 20 parts by weight, more preferably 1 to 10 parts by weight, based on 100 parts by weight of component (A) in each case. The filler can be added to component (A) or component (B) in any combination.

[0032] The filler can be a single material or a mixture of distinct materials. Preferably, the filler used in the foam control composition comprises materials having a BET specific surface area of 20 to 1000 m 2 / g. In certain embodiments, the filler comprises materials having a particle size of less than 10 μm. In such an embodiment, the filler comprises materials having a particle size of 1 to 10 μm. Suitable filler materials can have a weak aggregate size of less than 100 μm.

[0033] Suitable filling materials include, for example, silicon oxides such as silica (SiO2). Suitable fillers also include, for example, metal oxides such as titanium dioxide and aluminum oxide. Metal soaps, micronized quartz, PTFE powder, fatty acid amides such as ethylene bisstearamide, and micronized hydrophobic polyurethane are also suitable materials that can be used as fillers. Mixtures of the above materials are also suitable for use as fillers.

[0034] Preferred silicon oxides have a BET specific surface area of 50 - 800 m 2 / g. These materials may be fumed or precipitated. Preferred filler materials are pretreated silica, for example, commercially available hydrophobic silica. An example of a commercially available hydrophobic silica suitable for use in the composition is HDK(R) H2000, which is treated with hexamethyldisilazane and has a BET specific surface area of 140 m 2 / g and is a fumed silica available from Wacker Chemie AG. Another example of a commercially available hydrophobic silica suitable for use in the composition is Sipernat(R) D10, which has a BET surface area of 90 m 2 / g and is a precipitated polydimethylsiloxane-treated silica available from Evonik Industries AG.

[0035] In some embodiments, the foam control composition includes component (C). In such an embodiment, component (C) is present in the foam control composition in an amount of 1 - 10 parts by weight based on 100 parts by weight of component (A). In these amounts, component (C) can be soluble or partially insoluble in component (A). Solubility can be measured by methods known in the art. In other embodiments, the weight ratio of component (B) to component (C) in the composition ranges from 95:5 to 5:95. In such an embodiment, the weight ratio of component (B) to component (C) in the composition ranges from 80:20 to 20:80.

[0036] In certain embodiments, component (C) is a resin. The resin preferably contains two or more siloxane units. In some embodiments, the resin contains M units and Q units. The molar ratio of M units to Q units in the resin can range from 0.5 to 2.0. Preferably, the molar ratio of M units to Q units in the resin ranges from 0.6 to 1.0. The solubility of the resin in component (A) can at least partially depend on the ratio of M units to Q units in the resin.

[0037] In one embodiment, at least one M unit is of the formula (R 3 )3SiO 1 / 2 and at least one Q unit is of the formula SiO2, where R 3 is a hydrogen atom, a saturated or unsaturated group having 1 to 40 carbon atoms, or a saturated or unsaturated group having 6 to 40 carbon atoms and at least one alkyl group singly bonded to an oxygen atom. In other embodiments, the resin contains units of the formula R 3 SiO 3 / 2 or units of the formula R 3 2SiO 2 / 2 . When R 3 SiO 3 / 2 units or R 3 2SiO 2 / 2 units are provided, the R 3 SiO 3 / 2 units or R 3 2SiO 2 / 2 units are present in the resin in an amount of 0.01 to 20 mol% based on the total of all units in component (C). Preferably, the R 3 SiO 3 / 2 units or R 3 2SiO 2 / 2 units are present in the resin in an amount of 0.01 to 5 mol% based on the total of all units in component (C). The resin may also contain up to 10 wt% of free Si-bonded hydroxyl or alkoxy groups, such as methoxy or ethoxy groups.

[0038] In some embodiments, the resin may be solid. In other embodiments, when measured at a temperature of 25 °C and a pressure of 1014.25 hPa, the resin may exhibit a viscosity exceeding 1000 mPa·s under shear rate conditions of 10 (s -1 ) measured using a rheometer equipped with a cone and plate of 25 mm diameter. The weight average molecular weight (relative to polystyrene standard) of the above resin by SEC is preferably 200 to 200,000 grams / mol. More preferably, the weight average molecular weight of the above resin measured by SEC is 1000 to 20,000 grams / mol.

[0039] In some embodiments, the foam control composition includes component (D). Preferably, component (D) is provided in an amount of 0 to 1000 parts by weight, more preferably 0 to 100 parts by weight, in each case based on 100 parts by weight of the total weight of components (A), (B), and (C) when used. In these embodiments, component (D) can be utilized to provide the foam control composition as a dispersion. Preferably, component (D) includes a water-insoluble organic compound having a boiling point exceeding 100 °C at a pressure of 900 to 1100 hPa, particularly 1014.25 hPa. As used herein, the term "water-insoluble" means a solubility in water of 2 weight percent or less at a temperature of 25 °C and a pressure of 1013.25 hPa. Suitable water-insoluble organic compounds include mineral oil, natural oil, isoparaffin, polyisobutylene, residues from oxo-process alcohol synthesis, esters of low molecular weight synthetic carboxylic acids such as pentane-1,3-diol diisobutyrate, fatty acid esters such as octyl stearate, dodecyl palmitate or isopropyl myristate, fatty alcohols, ethers of low molecular weight alcohols, phthalates, esters of phosphoric acid, and waxes. Polymers of polypropylene glycol having a number average molecular weight of 2000 to 4000, as well as block copolymers based on ethylene oxide and propylene oxide with an average molecular weight of 2700 to 5000 and a hydrophilic-hydrophilic balance (HLB) of 1 to 7, sold under the trademarks Pluronic(R) and Tetronic(R) by BASF can also be used.

[0040] Preferably, when the foam control composition is formed, the foam control composition is a viscous mixture of components, and when viewed in appearance, it is transparent to opaque and colorless to brownish. In certain embodiments, the foam control composition is in each case measured according to DIN 53019 at 25 °C and 1014.25 hPa, and preferably using a rheometer equipped with a cone and plate with a diameter of 25 mm, exhibits a viscosity of 10 to 2,000,000 mPa·s, preferably 2,000 to 50,000 mPa·s. The foam control composition can be prepared by known methods, for example, by mixing all desired components. Mixing of the components can be achieved, for example, by generating high shear forces in a colloid mill, dissolver, or rotor-stator homogenizer. This mixing operation can be carried out under reduced pressure, for example, to prevent the incorporation of air that may be present in the filler.

[0041] Embodiments of the foam control composition can be utilized to reduce or prevent the formation of foam in an aqueous system, particularly the foam generated by a detergent composition during washing. Thus, the composition can be included in an aqueous detergent. Preferably, in these embodiments, the aqueous detergent contains a surfactant system. The surfactant system contains at least one surfactant. Anionic surfactants, nonionic surfactants, or mixtures thereof are suitable for use in the surfactant system. Surfactants known in the art can be utilized in the aqueous detergent. An example of a suitable anionic surfactant is sodium dodecylbenzenesulfonate. Suitable nonionic surfactants include alcohol ethoxylates, which ensure the effectiveness of the detergent at lower washing temperatures, for example, 40 °C. However, other surfactants, such as cationic surfactants, amphoteric surfactants, zwitterionic surfactants, and mixtures thereof, may also be included as part of the surfactant system.

[0042] When the foam control composition is used in a liquid laundry detergent, the relative proportions of its components can be adjusted to match the density of the detergent formulation. To avoid and reduce the possibility of coalescence, creaming, sedimentation, or separation, the density of the foam control composition preferably matches the density of the liquid laundry detergent provided by other components in the detergent, such as combinations of surfactant systems. Preferably, in these embodiments, the density of the foam control composition is 1.00 - 1.10 g / mL as defined, for example, in methods such as ASTM D333, ISO 2811, or DIN 51757. By matching the density of the foam control composition to the density of the liquid laundry detergent, the above-mentioned compatibility problems can be minimized.

[0043] It should be understood that the foam control composition is not limited to use in liquid laundry detergents. Foam control can be used in any application where unwanted foam should be minimized or eliminated. For example, in some embodiments, the foam control composition may be provided in a detergent or another type of cleaning composition that is further formulated into an emulsion, powder, dispersion, or another form. Additionally, the foam control composition can be utilized in other known foam control applications where organosilicon compounds are known to be used.

[0044] The foam control composition can be provided in a liquid form, such as an emulsion, dispersion, etc., or in another form, such as a powder.

[0045] In embodiments where the brewing control composition is provided in an emulsified form, emulsifiers known in the preparation of silicone emulsions can be utilized. Suitable examples include anionic, cationic, or nonionic emulsifiers. In some embodiments, it may be desirable to utilize a mixture of emulsifiers. In these embodiments, it is preferred to utilize at least one nonionic emulsifier. Suitable nonionic emulsifiers include sorbitan fatty acid esters, ethoxylated sorbitan fatty acid esters, ethoxylated fatty acids, ethoxylated linear or branched alcohols having 10 to 20 carbon atoms, and / or glycerol esters. To increase the stability and shelf life of the resulting emulsion, thickeners can be used. Known thickener compounds such as polyacrylic acid, polyacrylates, cellulose ethers such as carboxymethyl cellulose and hydroxyethyl cellulose, natural thickeners such as xanthan gum, and polyurethanes, as well as preservatives and other conventional additives can be used as thickeners. Preferably, in these embodiments, the emulsion comprises a continuous phase containing water.

[0046] In embodiments where the brewing control composition is provided as a dispersion, components (A), (B), and (C) when used can be dispersed in component (D). In this embodiment, component (D) is a water-insoluble organic compound and can form a continuous phase.

[0047] In embodiments where the foam control composition is provided as a powder, it may be preferred that the foam control composition contains only components (A) to (C) and component (D) is optional. The provision of the foam control composition in powder form is achieved, for example, by methods known in the art such as spray drying or agglomeration granulation and by using known additives. Thus, by way of example, if the foam control composition is in powder form, it preferably comprises 2 to 20% by weight of the foam control composition together with 80 to 98% by weight of a powder containing one or more additives. Suitable additives include, for example, zeolite, sodium sulfate, sodium bicarbonate, sodium carbonate, cellulose derivatives, urea (derivatives) and sugars. These powders may also contain waxes or organic polymers.

[0048] In the above embodiments, the foam control composition can be used in a method for preventing and / or reducing the formation of foam in a particular medium in which it is desired to control the foam. Such a method can include providing a foam control agent and introducing the foam control composition into the medium. The foam control composition can be introduced into the medium in one of the above forms, for example, as a liquid, emulsion, dispersion, or another form. After introduction, the foam control composition can be mixed with the medium to prevent or reduce foam.

Examples

[0049] The following examples are presented only for the purpose of further illustrating and disclosing embodiments of the foam control composition. Unless otherwise indicated, all parts and percentages used to describe the examples and their preparation are by weight. Further, unless otherwise indicated, the following examples and their preparation were carried out at 1014.25 hPa and 20 °C, or at the temperature that results when the reactants are mixed at 20 °C without additional heating or cooling.

[0050] [Preparation of Example 1] 44.2 grams (g) of a mixture of ethoxysilicates containing monomer, dimer, and oligomer compounds (TES40 available from Wacker Chemie AG) and 74.5 g of 2-phenylethanol (commercially available from Sigma-Aldrich (USA)) are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. The mixture is then heated to 60 °C, and 0.18 g of Ti(OBu)4 (commercially available from Sigma-Aldrich (USA)) is added to the flask under N2. The mixture is then refluxed at 130 °C for 3 hours until no further ethanol is recovered. Then, 0.7 g of H2O is added, and the reaction mixture is refluxed for an additional 3 hours until no further ethanol is recovered. 24.7 g of ethanol is recovered from the reaction mixture, which corresponds to a conversion of approximately 88.0% of all the ethoxy groups present in the ethoxysilicate starting material. The mixture is cooled to room temperature, and further volatile substances are removed using a rotary evaporator to obtain 86 g of a pale yellow fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = 2-phenylethyl). The [SiO 4 / 2 units were present at 4.3 mol%, the [(RO)SiO 3 / 2 units were present at 26.9 mol%, and the [(RO)2SiO 2 / 2 units were present at 37.2 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR. The average molecular weight of the fluid was 900 Da, which was determined by SEC.

[0051] [Preparation of Example 2] A mixture of ethoxysilicates containing monomer, dimer, and oligomer compounds (TES40 available from Wacker Chemie AG) 28.6 g, 3,3,5-trimethylcyclohexanol (commercially available from Sigma-Aldrich (USA)) 64.8 g, and sodium methoxide solution 0.12 g are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. Next, the mixture is heated under N2 at a temperature of 150 - 220 °C for 3 hours until no more ethanol is recovered. 18.8 g of ethanol is recovered from the reaction product, which corresponds to a conversion rate of approximately 90.0% of all the ethoxy groups present in the ethoxysilicate starting material. Then, the mixture is cooled to room temperature, and 56 μL of concentrated HCl (commercially available from Sigma-Aldrich (USA)) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. Next, the mixture is filtered, and further volatile substances are removed using a rotary evaporator to obtain 64.5 g of a colorless fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = trimethylcyclohexyl). The [SiO 4 / 2 units were present at 7.9 mol%, the [(RO)SiO 3 / 2 units were present at 27.7 mol%, and the [(RO)2SiO 2 / 2 units were present at 20.9 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR. The average molecular weight of the fluid measured by SEC was 1200 Da.

[0052] [Preparation of Example 3] 26.1 g of a mixture of ethoxysilicates containing monomer, dimer, and oligomer compounds (TES40 available from Wacker Chemie AG), 59.7 g of 3,3,5-trimethylcyclohexanol (commercially available from Sigma-Aldrich, USA), and 0.10 g of sodium methoxide solution are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. Next, the mixture is heated under N2 at a temperature of 150 - 220 °C for 3 hours until no more ethanol is recovered. Then, the mixture is cooled to 100 °C, 0.35 g of water is added to the mixture, and then it is heated again to 150 - 220 °C for another 3 hours until no more ethanol is recovered. 17.3 g of ethanol is recovered from the reaction product, which corresponds to a conversion rate of approximately 90.0% of all the ethoxy groups present in the ethoxysilicate starting material. Next, the mixture is cooled to room temperature, and 48 μL of concentrated HCl (commercially available from Sigma-Aldrich, USA) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. The mixture is filtered, and further volatile substances are removed using a rotary evaporator to obtain 63 g of a colorless fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = trimethylcyclohexyl). The [SiO 4 / 2 units were present at 2.4 mol%, the [(RO)SiO 3 / 2 units were present at 29.0 mol%, and the [(RO)2SiO 2 / 2 units were present at 24.7 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR. The average molecular weight of the fluid measured by SEC was 1187 Da.

[0053] [Preparation of Example 4] 30.9 g of a mixture of ethoxysilicates containing monomer, dimer, and oligomer compounds (TES40 available from Wacker Chemie AG), 66.6 g of 2-phenyl-1-propanol (commercially available from Sigma-Aldrich, USA), and 0.12 g of sodium methoxide solution are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. Next, the mixture is heated under N2 at a temperature of 150 - 220 °C for 3 hours until no more ethanol is recovered. 19.8 g of ethanol was recovered from the reaction, which corresponds to a conversion of approximately 90.0% of all ethoxy groups present in the ethoxysilicate starting material. The mixture is then cooled to room temperature and 56 μL of concentrated HCl (commercially available from Sigma-Aldrich, USA) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. Next, the mixture is filtered and further volatile substances are removed using a rotary evaporator to obtain 72 g of a colorless fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = 2-phenylpropyl). The [SiO 4 / 2 units were present at 6.6 mol%, the [(RO)SiO 3 / 2 units were present at 24.6 mol%, and the [(RO)2SiO 2 / 2 units were present at 22.7 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR. The average molecular weight of the fluid measured by SEC was 1186 Da.

[0054] [Preparation of Example 5] A mixture of monomer, dimer and oligomer compounds of ethoxysilicate (TES40 available from Wacker Chemie AG) 31.6 g, 2-phenyl-1-propanol (commercially available from Sigma-Aldrich (USA)) 68.2 g and 0.12 g of sodium methoxide solution are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. Next, the mixture is heated under N2 at a temperature of 150 to 220 °C for 3 hours until no more ethanol is recovered. Then, the mixture is cooled to 100 °C, 0.44 g of water is added to the mixture, and then it is heated at a temperature of 150 to 220 °C for a further 3 hours until no more ethanol is recovered. 23.1 g of ethanol was recovered from the reaction, which corresponds to a conversion of approximately 90.0% of all ethoxy groups present in the ethoxysilicate starting material. Next, 56 μL of concentrated HCl (commercially available from Sigma-Aldrich (USA)) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. The mixture is filtered and further volatile substances are removed using a rotary evaporator to obtain 74 g of a slightly yellow fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (wherein R = 2-phenylpropyl). The [SiO 4 / 2 units were present at 5.7 mol%, the [(RO)SiO 3 / 2 units were present at 27.2 mol%, and the [(RO)2SiO 2 / 2 units were present at 23.4 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR. The average molecular weight of the fluid measured by SEC was 1186 Da.

[0055] [Preparation of Example 6] 30.8 g of a mixture of ethoxysilicates containing monomeric, dimeric and oligomeric compounds (TES40 available from Wacker Chemie AG), 66.7 g of 3-phenyl-1-propanol (commercially available from Sigma-Aldrich, USA), and 0.18 g of a sodium methoxide solution are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. The mixture is then heated under N2 at a temperature of 150 - 220 °C for 3 hours until no more ethanol is recovered. 19.5 g of ethanol was recovered from the reaction product, which corresponds to a conversion of approximately 87.0% of all ethoxy groups present in the ethoxysilicate starting material. The mixture is then cooled to room temperature and 84 μL of concentrated HCl (commercially available from Sigma-Aldrich, USA) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. Next, the mixture is filtered and further volatile substances are removed using a rotary evaporator to obtain 76 g of a colorless fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = 3-phenylpropyl). The [SiO 4 / 2 units were present at 6.6 mol%, the [(RO)SiO 3 / 2 units were present at 21.3 mol%, and the [(RO)2SiO 2 / 2 units were present at 31.4 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR. The average molecular weight of the fluid measured by SEC was 1270 Da.

[0056] [Preparation of Example 7] A mixture of ethoxysilicate containing monomer, dimer, and oligomer compounds (TES40 available from Wacker Chemie AG) 29.9 g, geraniol (commercially available from Sigma-Aldrich, USA) 73.2 g, and sodium methoxide solution 0.11 g are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. Next, the mixture is heated under N2 at a temperature of 150 - 220 °C for 3 hours until no more ethanol is recovered. 19.0 g of ethanol was recovered from the reaction, which corresponds to a conversion of approximately 87.0% of all ethoxy groups present in the ethoxysilicate starting material. The mixture is then cooled to room temperature, and 55 μL of concentrated HCl (commercially available from Sigma-Aldrich, USA) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. Next, the mixture is filtered and further volatile substances are removed using a rotary evaporator to obtain 84 g of a pale yellow fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = C 10 H 17 ). The [SiO 4 / 2 units were present at 6.0 mol%, the [(RO)SiO 3 / 2 units were present at 21.4 mol%, and the [(RO)2SiO 2 / 2 units were present at 25.6 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR. The average molecular weight of the fluid measured by SEC was 1550 Da.

[0057] [Preparation of Example 8] 20.7 g of a mixture of ethoxysilicates containing monomer, dimer, and oligomer compounds (TES40 available from Wacker Chemie AG), 88.6 g of oleyl alcohol (commercially available from Sigma-Aldrich, USA), and 0.08 g of sodium methoxide solution are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. Next, the mixture is heated under N2 at a temperature of 150 - 220 °C for 3 hours until no more ethanol is recovered. 12.9 g of ethanol was recovered from the reaction, which corresponds to a conversion of approximately 85.0% of all the ethoxy groups present in the ethoxysilicate starting material. The mixture is then cooled to room temperature and 38 μL of concentrated HCl (commercially available from Sigma-Aldrich, USA) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. Next, the mixture is filtered and further volatile substances are removed using a rotary evaporator to obtain 97 g of a yellow fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = oleyl). The [SiO 4 / 2 units were present at 6.7 mol%, the [(RO)SiO 3 / 2 units were present at 22.0 mol%, and the [(RO)2SiO 2 / 2 units were present at 23.0 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR. The average molecular weight of the fluid measured by SEC was 2872 Da.

[0058] [Preparation of Example 9] 38.1 g of a mixture of ethoxysilicates containing monomer, dimer, and oligomer compounds (TES40 available from Wacker Chemie AG), 65.7 g of benzyl alcohol (commercially available from Sigma-Aldrich, USA), and 0.12 g of sodium methoxide solution are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. Next, the mixture is heated under N2 at a temperature of 150 - 220 °C for 3 hours until no more ethanol is recovered. 25.7 g of ethanol was recovered from the reaction, which corresponds to a conversion of approximately 92.0% of all the ethoxy groups present in the ethoxysilicate starting material. The mixture is then cooled to room temperature and 58 μL of concentrated HCl (commercially available from Sigma-Aldrich, USA) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. Next, the mixture is filtered and further volatile substances are removed using a rotary evaporator to obtain 76 g of a colorless fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = benzyl). The [SiO 4 / 2 units were present at 3.4 mol%, the [(RO)SiO 3 / 2 units were present at 18.9 mol%, and the [(RO)2SiO 2 / 2 units were present at 35.0 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR. The average molecular weight of the fluid measured by SEC was 1212 Da.

[0059] [Preparation of Example 10] 20.0 g of a mixture of ethoxysilicates containing monomer, dimer, and oligomer compounds (TES40 available from Wacker Chemie AG), 21.7 g of 3-phenyl-1-propanol (commercially available from Sigma-Aldrich, USA), 42.6 g of oleyl alcohol (commercially available from Sigma-Aldrich, USA), and 0.08 g of sodium methoxide solution are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. Next, the mixture is heated under N2 at a temperature of 150 - 220 °C for 3 hours until no more ethanol is recovered. 12.9 g of ethanol was recovered from the reaction, which corresponds to a conversion of approximately 85.0% of all ethoxy groups present in the ethoxysilicate starting material. The mixture is then cooled to room temperature and 40 μL of concentrated HCl (commercially available from Sigma-Aldrich, USA) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. Next, the mixture is filtered and further volatile substances are removed using a rotary evaporator to obtain 71 grams of a yellow fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = oleyl or 3-phenylpropyl). The [SiO 4 / 2 units were present at 7.4 mol%, the [(RO)SiO 3 / 2 units were present at 22.2 mol%, and the [(RO)2SiO 2 / 2 units were present at 25.2 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR.

[0060] [Preparation of Example 11] 20.3 g of a mixture of ethoxysilicates containing monomer, dimer, and oligomer compounds (TES40 available from Wacker Chemie AG), 14.4 g of benzyl alcohol (commercially available from Sigma-Aldrich, USA), 43.2 g of oleyl alcohol (commercially available from Sigma-Aldrich, USA), and 0.07 g of sodium methoxide solution are added to a dry flask equipped with a Dean-Stark apparatus and a condenser. Next, the mixture is heated under N2 at a temperature of 150 - 220 °C for 3 hours until no more ethanol is recovered. 13.1 g of ethanol was recovered from the reaction product, which corresponds to a conversion rate of approximately 85.0% of all the ethoxy groups present in the ethoxysilicate starting material. The mixture is then cooled to room temperature, and 40 μL of concentrated HCl (commercially available from Sigma-Aldrich, USA) is stirred into the mixture to neutralize the sodium methoxide. The mixture is stirred for 10 minutes. Next, the mixture is filtered, and further volatile substances are removed using a rotary evaporator to obtain 67 grams of a yellow fluid. The fluid contained units of the formula [SiO 4 / 2 , [(RO)SiO 3 / 2 , and [(RO)2SiO 2 / 2 (where R = oleyl or benzyl). The [SiO 4 / 2 units were present at 7.6 mol%, the [(RO)SiO 3 / 2 units were present at 19.1 mol%, and the [(RO)2SiO 2 / 2 units were present at 26.5 mol%. The units and composition of the fluid were determined by 1 H-NMR and 29 Si-NMR.

[0061] [Examples 1 - 15] Examples 1 - 15, described below and shown in Table 1, illustrate specific embodiments of the foam control composition.

[0062] To prepare the foam control compositions of Examples 1 to 11, 87.0 parts of each product of the preparations of Examples 1 to 11 were mixed with 3.0 parts of component (B), 5.0 parts of component (C), and 5.0 parts of component (D) in a dissolver at room temperature for 10 minutes. Components (B) to (D) are as follows. Component B is hydrophobic polydimethylsiloxane-treated silica having a BET specific surface area of 90 m 2 / g. Component (C) is 29 By Si-NMR and IR analysis, CH3SiO 1 / 2 units 40 mol%, SiO 4 / 2 units 50 mol%, C2H5OSiO 3 / 2 units 8 mol% and HOSiO 3 / 2 units 2 mol%, and is a silicone resin that is solid at room temperature and has a weight-average molar mass of 7900 g / mol (relative to a polystyrene standard in the range of 296 g / mol to 3,150,000 g / mol). Component (D) is a hydrocarbon mixture having a boiling range in the range of 235 to 270°C.

[0063] To prepare the foam control composition of Example 12, 100.0 parts of the product of the preparation of Example 5 were mixed in a dissolver at room temperature for 10 minutes.

[0064] To prepare the foam control composition of Example 13, 87.0 parts of the product of the preparation of Example 5 were mixed with 3.0 parts of component (B) in a dissolver at room temperature for 10 minutes. Component (B) was as described above.

[0065] To prepare the foam control composition of Example 14, 87.0 parts of the product of the preparation of Example 5 were mixed with 5.0 parts of component (C) in a dissolver at room temperature for 10 minutes. Component (C) was as described above.

[0066] To prepare the foam control composition of Example 15, 92.0 parts of the product of the preparation of Example 5 were mixed with 3.0 parts of component (B) and 5.0 parts of component (C) in a dissolver at room temperature for 10 minutes. Components (B) and (C) were as described above.

[0067] [Table 1]

[0068] The foaming control performance of Comparative Example 1, which is Comparative Example for Examples 1 to 15, is reported in Table 2. The foaming control performance of each of Examples 1 to 15 was measured using a rotating cylinder test as follows.

[0069] Each rotating cylinder test of the inventive examples involved forming a detergent solution by adding 0.0025 parts of each of the foaming control compositions of Examples 1 to 15 to 100 parts of a commercially available liquid detergent containing both a nonionic surfactant and an anionic surfactant. Next, 1.8 parts of each detergent solution was added to 300 parts of distilled water to form a mixture. Then, the resulting mixtures were separately added to cylinders and tested. Before each rotating cylinder test, the cylinder was sealed. After sealing the cylinder, the cylinder was rotated at 30 rpm for 12 minutes. Comparative Example 1 was a mixture of 1.8 parts of a commercially available liquid detergent and 300 parts of distilled water. Comparative Example 1 did not contain any of the materials of Examples 1 to 15. Comparative Example 1 was also tested using the above-described rotating cylinder test.

[0070] After rotating the cylinder as described above, the height of the foam was immediately measured for the mixtures containing the compositions of Examples 1 to 15 and Comparative Example 1, and the height of the foam was recorded in mm units.

[0071]

Table 2

[0072] The lower the height of the foam reported in Table 2, the better the foaming control performance. As shown in Table 2, none of the foaming control compositions of Examples 1 to 15 increased the height of the foam generated after performing the rotating cylinder test on Comparative Example 1. In fact, the foaming control compositions of Examples 1 to 11, 13, and 15 showed a decrease in the height of the foam produced relative to Comparative Example 1, and each of these examples showed good to very good foam control.

[0073] From the foregoing detailed description, it will be apparent that various modifications, additions, and other alternative embodiments are possible without departing from the true scope and spirit. The embodiments described herein provide the best illustration of the principles of the present invention and its practical applications, whereby those skilled in the art are enabled to use the present invention with various modifications in various embodiments to suit the particular uses contemplated. As should be understood, all such modifications and variations are within the scope of the present invention.

Claims

1. A foam control composition comprising the following. Component (A) containing units of the following formula [SiO ４／２ ] ａ [(R １ O)SiO ３／２ ] ｂ [(R ２ O)SiO ３／２ ] ｂ’ [(R １ O) ２ SiO ２／２ ] ｃ [(R １ O)(R ２ O)SiO ２／２ ] ｃ’ [(R ２ O) ２ SiO ２／２ ] ｃ” [(R １ O) ３ SiO １／２ ] ｄ [(R １ O) ２ (R ２ O)SiO １／２ ] ｄ’ [(R １ O)(R ２ O) ２ SiO １／２ ] ｄ” [(R ２ O) ３ SiO １／２ ] ｄ’’’ [In the formula, R １ is a substituted or unsubstituted linear or branched hydrocarbon group having 6 to 40 carbon atoms, R ２ is hydrogen or a saturated or unsaturated group having 1 to 12 carbon atoms, [The subscripts a, b, b', c, c', c", d, d', d", and d''' are such that a + b + b' + c + c' + c" + d + d' + d" + d''' is equal to 2 or more, and component (A) is 0.1 to 20 mol% of R １ based on the total of all R ２ groups and R ２They have values in the range of 0 to 100,000, respectively, on the condition of including a base.], and Component (B) containing a filler.

2. Further comprising component (C), wherein component (C) is a resin containing M units and Q units, and at least one M unit is of the formula (R ３ ) ３ SiO １／２ of which, and at least one Q unit is of the formula SiO ２ of which, R ３ is a hydrogen atom, a saturated or unsaturated group having 1 to 40 carbon atoms, or a saturated or unsaturated group having 6 to 40 carbon atoms and at least one alkyl group singly bonded to an oxygen atom, the composition according to claim 1.

3. Further comprising component (D) containing one or more water-insoluble organic compounds, the composition according to claim 1.

4. Exhibiting a viscosity of 1 to 30,000 mPa·s and a density of 0.9 to 1.20 g / mL at 25 °C and 1014.25 hPa, the composition according to claim 1.

5. The composition according to claim 1, wherein the filler contains silicon oxide, metal oxide, or a mixture thereof.

6. The composition according to claim 1, wherein the component (A) is a hydrophobic fluid exhibiting a surface tension of 26 to 45 millinewtons / meter.

7. The composition according to claim 1, wherein the component (A) has a weight average molecular weight in the range of 250 to 20,000 daltons.

8. The composition according to claim 1, containing at least 85% by weight of component (A).

9. The subscripts a, b, b', c, c', c", d, d', d", and d''' each have values of 0 to 100, the composition according to claim 1.

10. R １The composition according to claim 1, wherein pairs of adjacent carbon atoms are interrupted by oxygen or nitrogen atoms.

11. The composition according to claim 1, wherein component (A) has R １ groups and R ２ groups in the range of 1 to 15 mol% based on the total of all R ２ groups in component (A).

12. The composition according to claim 1, wherein component (A) consists of units having silicon atoms chemically bonded to four oxygen atoms.

13. R ２ is selected from the group consisting of hydrogen, methyl group, and ethyl group, the composition according to claim 1.

14. R ２ is such that R １ groups and all R ２ groups contain hydrogen in an amount of 5 mol% or less based on the total of R

15. An aqueous detergent comprising: the composition according to claim 1, and a surfactant system containing at least one surfactant.

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