Foam control composition

Abstract

The foam control composition comprises component (A) and component (B). Component (A) comprises a composition of formula (R 1 O) a (R 2 O) b (R 3 O) c R 4 d R 5 e R 6 f SiO[SiR 7 R 8 O] x [SiR 9 (OR 10 )O] y Si(R 1 O) a (R 2 O) b (R 3 O) c R 4 d R 5 e R 6 f Component (B) contains a filler.

Description

Background Art

[0001] The present invention relates to a foam control composition. More particularly, the present invention relates to a multi-component foam control composition. The present invention also relates to a method for preparing the foam control composition and the use of the foam control composition.

[0002] In aqueous systems comprising surfactants such as detergents, it is undesirable to produce foam under certain conditions. Therefore, detergents will generally include defoamers. For example, in washing applications, the use of front-load (drum-type) washing machines has created conditions that easily produce foam. It has been shown that silicone-based defoamers are particularly useful in these applications. However, such defoamers are typically complex and have a high manufacturing cost.

[0003] In addition, the gray water discharged from washing machines often contains detergents, oils and dirt, and the gray water is sent to municipal facilities for treatment and purification. Therefore, the washing process can provide a way for siloxanes to enter the ecosystem. Once in the environment, known polydiorganosiloxanes (MD-type materials) such as polydimethylsiloxane (PDMS) will decompose due to the presence of repeated dimethylsiloxy units, which decompose into lower molecular weight cyclic siloxanes such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane through a cyclization pathway. 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 through acid or base catalysts, which attack the main chain of the polymer to form cyclic siloxanes and shorten the fragments of the polymer.

[0004] It would therefore be desirable to provide a composition that overcomes the above-mentioned drawbacks. Summary of the Invention

[0005] Embodiments of foam control compositions are provided.

[0006] In one embodiment, the foam control composition comprises component (A) and component (B). Component (A) comprises units of the formula:

[0007] (R 1 O) a (R 2 O) b (R 3 O) c R 4 d R 5 e R 6 f SiO[SiR 7 R 8 O] X [SiR 9 (OR10 )O] Y Si(R 1 O) a (R 2 O) b (R 3 O) c R 4 d R 5 e R 6 f

[0008] in

[0009] R 1 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms,

[0010] R 2 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms,

[0011] R 3 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms,

[0012] R 4 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0013] R 5 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0014] R 6 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0015] R 7 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0016] R 8 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0017] R 9 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0018] R 10 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms. Subscripts a, b, c, d, e, and f each have a value within the range of 0 to 3, with the proviso that a+b+c+d+e+f=3; X is an integer from 0 to 1000, and Y is an integer from 1 to 1000. Component (B) contains a filler.

[0019] In some embodiments, component (A) is a hydrophobic fluid exhibiting a surface tension of 20-40 millinewtons per meter.

[0020] In other embodiments, component (A) has a weight average molecular weight in the range of 2,000 to 50,000 Daltons.

[0021] In yet other embodiments, component (A) comprises [SiR 7 R 8 O] X In certain of these embodiments, component (A) comprises [SiR 7 R 8 O] X Preferably, in some embodiments, component (A) comprises [SiR 7 R 8 O] X However, in other embodiments, component (A) comprises [SiR 7 R 8 O] X unit.

[0022] In some embodiments, component (A) comprises [SiR 9 (OR 10 )O] Y Preferably, in these embodiments, component (A) comprises [SiR 9 (OR 10 )O] Y In some of these embodiments, component (A) comprises SiR in an amount of 20-80 mol %. 9 (OR 10 )O] Y In other of these embodiments, component (A) comprises [SiR 9 (OR 10 )O] Y unit.

[0023] Preferably, the filler comprises silicon oxide, metal oxide, or a mixture thereof.

[0024] In some embodiments, the composition further comprises a component (C). In certain embodiments, component (C) is a resin comprising M units and Q units, wherein at least one M unit is of the formula (R 11 )3SiO 1 / 2 and at least one Q unit is of the formula SiO4 / 2 Among them, R 11 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.

[0025] In certain embodiments, the weight ratio of component (B) to component (C) in the composition is from 95:5 to 5:95.

[0026] In other embodiments, the molar ratio of M units to Q units is from 0.5 to 2.0.

[0027] In yet other embodiments, component (C) further comprises a compound of formula R 11 SiO 3 / 2 The unit or formula R 11 2SiO 2 / 2 Based on the sum of all units in component (C), R 11 SiO 3 / 2 Unit or R 11 2SiO 2 / 2 The unit is present in an amount of 0.01 to 20 mol%.

[0028] In some embodiments, the composition further comprises component (D). In certain embodiments, component (D) comprises one or more water-insoluble organic compounds. In certain 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.

[0029] In some embodiments, the composition exhibits a viscosity of 10-2,000,000 mPa·s and a density of 0.9-1.20 g / mL at 25° C. and 1014.25 hPa.

[0030] In some embodiments of the composition, Y is from 10 to 1000.

[0031] In other embodiments, R 1 、R 2 、R 3 or R 10 At least one of the adjacent carbon atoms is interrupted by one or more oxygen or nitrogen atoms.

[0032] Also provided are embodiments of aqueous detergents. In one embodiment, the aqueous detergent comprises an embodiment of the foam control composition and a surfactant system. The surfactant system comprises at least one surfactant. DETAILED DESCRIPTION

[0033] It should be understood that, unless expressly provided otherwise, the present invention may employ various alternative orientations and step sequences. It should also be understood that the specific materials, articles, and methods described in the following description are merely exemplary embodiments of the present inventive concepts. Therefore, unless expressly stated otherwise, specific properties, conditions, or other physical characteristics related to the disclosed embodiments should not be considered limiting.

[0034] In certain embodiments, a foam control composition is provided. The composition is suitable for controlling the amount of foam in an aqueous system. For example, the composition can be provided as part of an aqueous laundry detergent and used in washing applications. However, the foam control composition is not limited to detergent applications and can be used in other types or types of cleaning compositions. In addition, the composition can be used in applications other than washing. For example, the composition can also be suitable for controlling foam in applications such as textiles, pulps, wastewater, natural gas scrubbing, polymer dispersions, or other applications having agricultural applications or involving aqueous systems.

[0035] The foam control composition comprises component (A). In some embodiments, component (A) is a hydrophobic fluid. Component (A) comprises units of the formula:

[0036] (R 1 O) a (R 2 O) b (R 3 O) c R 4 d R 5 e R 6 f SiO[SiR 7 R 8 O] X [SiR 9 (OR 10 )O] Y Si(R 1 O) a (R 2 O) b (R 3 O) c R 4 d R 5 e R 6 f

[0037] in

[0038] R 1 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms,

[0039] R 2 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms,

[0040] R 3 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms,

[0041] R 4 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0042] R 5 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0043] R 6 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0044] R 7 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0045] R 8 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0046] R 9 is a saturated or unsaturated group having 1 to 12 carbon atoms,

[0047] R 10 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms. The subscripts a, b, c, d, e, and f each have a value from 0 to 3, with the proviso that a+b+c+d+e+f=3; X is an integer from 0 to 1000, and Y is an integer from 1 to 1000.

[0048] In this embodiment, component (A) is a polymer comprising at least one [SiR 9 (OR 10 )O] units, which may also be referred to herein as T units. Advantageously, it has been found that when the T units of component (A) contain alkoxy groups, the foam control composition can control the amount of foam in, for example, aqueous systems. In addition, the inclusion of one or more T units described above can prevent component (A) from decomposing into cyclic diorganosiloxanes.

[0049] In which R 1 In the embodiment where R is a saturated or unsaturated group having 6 to 40 carbon atoms, 1 The adjacent carbon atoms of R may be interrupted by one or more oxygen (O) atoms or nitrogen (N) atoms. 2 In the embodiment where R is a saturated or unsaturated group having 6 to 40 carbon atoms, 2The adjacent carbon atoms may be interrupted by one or more O atoms or N atoms. 3 In the embodiment where R is a saturated or unsaturated group having 6 to 40 carbon atoms, 3 The adjacent carbon atoms may be interrupted by one or more O atoms or N atoms. 10 In the embodiment where R is a saturated or unsaturated group having 6 to 40 carbon atoms, 10 The adjacent carbon atoms of R can be interrupted by one or more O atoms or N atoms. 1 、R 2 、R 3 or R 10 When at least one of the carbon atoms in the carbon atoms is adjacent, it is preferred that the O atoms or the N atoms are not adjacent to each other.

[0050] In some embodiments, R 4 、R 5 、R 6 、R 7 、R 8 and R 9 The saturated or unsaturated groups are hydrocarbon groups having 1 to 12 carbon atoms. Such hydrocarbon groups include methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, neopentyl, hexyl, cyclohexyl, octyl, nonyl, decyl, dodecyl, alkenyl such as vinyl, allyl, propenyl, isopropenyl, butenyl, hexenyl, cyclohexenyl, ethynyl and octenyl, and aryl such as phenyl, tolyl, xylyl and naphthyl. Methyl and ethyl are most preferred. In some embodiments, at least 80 mol % of R 4 、R 5 and R 6 is methyl or ethyl and at least 50 mol % of R 7 、R 8 and R 9 It is methyl or ethyl.

[0051] In some embodiments, component (A) comprises more than [SiR 9 (OR 10 )O] units more [SiR 7 R 8 O] units, which may also be referred to herein as D units. In other embodiments, component (A) comprises more than [SiR 7 R 8 O] unit more [SiR 9 (OR 10 )O] unit.

[0052] As described above, X is an integer from 0 to 1000. In these embodiments, component (A) may contain [SiR7 R 8 O] X In the embodiment where X is 0, [SiR 7 R 8 The mole % of [SiR O] units may be 5 mole % or less. Preferably, in the embodiment where X is 0, the [SiR 7 R 8 The mole % of [SiR O] units is 0 mole %. In embodiments where x is a positive integer but has a low value such as, for example, 0-50, the [SiR 7 R 8 The mole % of [SiR O] units may be 0-5 mole %. In other embodiments, X may be from 10 to 1000, or more preferably, from 20 to 500. In these embodiments, X may be such that [SiR 7 R 8 O] units are present in an amount of an integer from 10 to 99 mole %. More preferably, in these embodiments, X is such that [SiR 7 R 8 O] units are present in an amount of an integer from 30 to 80 mole %.

[0053] As described above, Y is an integer from 1 to 1000. In these embodiments, component (A) may contain [SiR 9 (OR 10 )O] Y Preferably, in these embodiments, Y is such that [SiR 9 (OR 10 )O] units are present in an amount greater than 0 mol%. Preferably, Y is such that [SiR 9 (OR 10 )O] units are present in an amount of 5 mol% or more. In one such embodiment, [SiR 9 (OR 10 )O] units are present in an amount of 5-99 mol%. In certain embodiments, Y is 10 or more. For example, Y can be from 10 to 1000. Preferably, Y is such that [SiR 9 (OR 10 )O] units are present in an amount of 20 mol% or more. For example, in one embodiment, Y is such that [SiR 9 (OR 10 )O] units are present in an amount of 95 mol% or more. For example, [SiR 9 (OR 10)O] units may be 95-99 mol%. In this embodiment, X may be 0-50 and [SiR 7 R 8 The mole % of [SiR 9 (OR 10 )O] units are present in an amount of 90 mol% or less. For example, in some embodiments, component (A) comprises 20-90 mol% of [SiR 9 (OR 10 )O] units. In other embodiments, component (A) may contain [SiR 9 (OR 10 )O] unit. For example, [SiR 9 (OR 10 )O] units may be present in an amount of 5 to 90 mol%. In these embodiments, Y may be such that component (A) comprises 20 to 80 mol% of [SiR 9 (OR 10 )O] unit integer.

[0054] It should be noted that when describing the mole % of a particular unit of component (A), the mole % described is based on the total number of units in component (A). The mole % of a particular type of unit (e.g., D or T unit) is preferably based on standard analytical NMR spectroscopy. 29 Si (NMR) technology was used to determine the mole % of component (A). 29 Si (NMR) spectrum is defined in the range of -40 to -80 ppm, and the D unit is 29 Si (NMR) spectrum is defined in the range of -21 to -40 ppm.

[0055] In component (A), [SiR 7 R 8 In an embodiment where the mol% of the [0] unit is greater than 5 mol%, forming component (A) may include using a transition metal catalyst. A transition metal catalyst may be used to react polyorganohydrogenated siloxane with a suitable alcohol, aldehyde or ketone to form a dehydrogenation or reduction coupling method for component (A). The use of dehydrogenation or reduction pathways enables the chemical feedstock with an alcohol, aldehyde or ketone to be used as a method for functionalizing a siloxane polymer. Examples of metals suitable for use in catalysts include platinum, rhodium, palladium, ruthenium and iridium, which may be optionally fixed on a finely dispersed support material such as activated carbon, aluminum oxide or silicon dioxide. Specific examples of homogeneous catalysts suitable for forming component (A) include [CuH (PPh 3 )] 6 , [RuCl 2 (p-methylisopropylbenzene)] 2 , RhCl (PPh 3 ) 3 and tris (pentafluorophenyl) borane.

[0056] In component (A), [SiR 7 R 8 In embodiments where the mole % of [O] units is 5 mole % or less, transesterification methods known in the art can be used to exchange low-boiling alcohols with high-boiling alcohols. In these embodiments, organosilicon polymers such as polymethylmethoxysiloxane or polymethylethoxysiloxane can be reacted with one or more alcohols using a Lewis acid catalyst such as Ti(OBu)4 to produce functionalized polyalkoxysiloxanes having T units. During this process, any low-boiling methanol or ethanol produced can be removed during the synthesis.

[0057] The alcohol that is suitable for forming component (A) can be selected from various saturated or unsaturated primary, secondary or tertiary alcohols. In some embodiments, these alcohols have 6 to 40 carbon atoms. In some of these embodiments, alcohol can include a pair of carbon atoms interrupted by one or more O atoms or N atoms. The example of suitable alcohol includes anisol, benzyl alcohol, cinnamyl alcohol, carvacrol, citronellol, cis-6-nonyl-1-ol, cis-3-octenol, cyclohexanol, 1-decanol, 6,8-dimethylnonyl-2-ol, dihydrocarveol, 2,6-dimethylheptyl-2-ol, ebanoic acid (ebanol), eugenol, geraniol, 1-heptanol, hydrocinnamic alcohol, cis-3-hexanol, trans-3-hexanol, cis-4-heptanol, isoborneol, isoeugenol, isomenthol,

[0014] Suitable commercially available materials for forming component (A) include isopulegol, lauryl alcohol, linalool, linolenyl alcohol, menthol, α-methylbenzyl alcohol, nerol, nonanol, trans-2-nonen-1-ol, trans-2-cis-6-nonadienol, 1-octanol, 3-octanol, trans-2-octenol, oleyl alcohol, β-phenylethyl alcohol, 2-phenylethyl alcohol, 3-phenylpropanol, 2-phenoxyethanol, stearyl alcohol, α-terpineol, tetrahydrogeraniol, tetrahydrolinalool, thymol, and trimethylcyclohexanol. Commercially available materials suitable for forming component (A) may have alcohol alkoxylate groups in which carbon atoms are interrupted by oxygen atoms. Such alcohol alkoxylates are marketed under the trademark Ecosurf TM or Tergitol TM Sold and available from Dow Chemical Company, or under the trademark or Sold and available from BASF.

[0058] The reductive coupling method for forming component (A) may include the use of one or more of the following aldehydes: cinnamaldehyde, cis-4-decanal, cyclohexanecarboxaldehyde, 1-dodecanal, hexadecanal, 2-ethylhexanal, 2-ethyloctanal, hydrocinnamaldehyde, 5-methylfurfural, 2-methylpentenal, 1-naphthaldehyde, 1-octanal, syringaldehyde, dimethyl-3-cyclohexene-1-carboxaldehyde (Trivertal), vanillin, o-vanillan ethyl vanillin. However, when ketones are used, suitable ketones include, for example, cyclohexanone, cycloheptanone, 4-methylcyclohexanone, Cyrene TM , 2-decanone, 3-decanone, 2-dodecanone, 3-dodecanone 4-(p-hydroxyphenyl)-2-butanone, decalactone, ionone, levoglucosone, 2-octanone and 3-octanone.

[0059] When formed, component (A) can be substantially linear. However, component (A) can include branches. Branched structures can be introduced into component (A) using a linking agent comprising two or more reactive alcohol functional groups, such as diethylene glycol, deionized water, glycerol, 1-phenyl-1,2-ethylene glycol, 2-phenyl-1,3-propylene glycol, p-xylene glycol, 1,5-pentanediol, pentaerythritol, polyethylene glycol, polypropylene glycol, polyvinyl alcohol, 1,8-octanediol, triethylene glycol, and two or more reactive aldehyde groups, such as terephthalaldehyde, m-phthalaldehyde, benzene-1,3,5-tricarbaldehyde, 2,5-bis(octyloxy)terephthalaldehyde and glutaraldehyde. In component (A), [SiR 7 R 8 In embodiments where the mole % of [SiR O] units is greater than 5 mole %, the above-mentioned linkers are suitable. 7 R 8 In embodiments where the mole % of [O] units is 5 mole % or less, linkers having alcohol functionality are preferred.

[0060] Preferably, component (A) is a hydrophobic fluid. In some embodiments, it is preferred that the surface tension of component (A) is 20-40 millinewtons per meter (mN / m), preferably 25-37mN / m. The surface tension of component (A) can be measured using a force tensiometer such as Krüss K100 Force Tensiometer. In order to measure the surface tension of component (A), the tensiometer is first calibrated using a calibration weight, and should be measured within the + / -0.5mg range of the calibration weight. Deionized water sample is tested as a reference, and should be measured within the + / -1.0mN / m range of 72.4mN / m. Next, the surface tension of component (A) can be measured by filling a 4 ounce sample jar with 37.5mL component (A) and placing it on a container platform. Raise the sample container platform until the sample surface is just below the bottom of the platinum-plated probe. Before using an external heating source, the platinum-plated probe can be cleaned. Surface tension measurements are performed using a wetting depth of 5 millimeters (mm), an acceleration of 5 mm / min, and a deceleration of 5 mm / min at 22° C. Multiple measurements can be taken after the first insult, and once equilibrium is reached the average can be calculated to provide the surface tension.

[0061] In other embodiments, the weight average molecular weight of component (A) is in the range of 2,000-50,000 Dalton (Da). The number average molecular weight (Mw) of component (A) is preferably in the range of 3,000-30,000 Da. The weight average molecular weight and number average molecular weight can be determined by size exclusion chromatography (SEC), using a PLgel MIXED-B chromatographic column with a length of 300 mm and a width of 7.5 mm and available from Agilent Technologies, Inc. and a tetrahydrofuran (THF) mobile phase, at a temperature of 25°C with a flow rate of 1 mL / min and an injection volume of 100 μL of a 1% THF solution of component (A). In addition, component (A) can exhibit a viscosity of 1-50,000 mPa, measured under 10 (s-1) shear rate conditions at 25°C by DIN 53019, preferably using a cone-plate rheometer equipped with a diameter of 25 mm. Preferably, under these conditions, component (A) exhibits a viscosity of 1 to 20,000 mPa·s. More preferably, under these conditions, component (A) exhibits a viscosity of 1 to 10,000 mPa·s. The density of component (A) may be in the range of 0.9 to 1.20 grams per milliliter (g / mL) at 25°C and may be measured, for example, according to ASTM D333, ISO 2811 or DIN 51757. Unless otherwise stated, the density of component (A) is measured at 1014.25 hPa and 20°C or a temperature typically associated with room temperature conditions.

[0062] The foam control composition comprises component (B). Component (B) comprises a filler. Preferably, component (B) is a filler. In some embodiments, the foam control composition comprises a filler in an amount of 0.1 to 20 parts by weight, more preferably 1 to 10 parts by weight, based in each case on 100 parts by weight of component (A). Fillers may be added to component (A) or component (B) in any combination.

[0063] The filler may be a single material or a mixture of discrete materials. Preferably, the filler used in the foam control composition comprises a filler having a BET surface area of ​​20 to 1000 m 2 / g of material. In certain embodiments, the filler comprises a material with a particle size of less than 10 μm. In one such embodiment, the filler comprises a material with a particle size of 1-10 μm. Suitable filler materials may have an agglomerate size of less than 100 μm.

[0064] Suitable filler materials include oxides of silicon, such as silicon dioxide (SiO 2 ). Suitable fillers also include metal oxides, such as titanium dioxide and aluminum oxide. Metal soaps, finely ground quartz, PTFE powder, fatty acid amides (e.g., ethylenebisstearamide), and finely dispersed hydrophobic polyurethanes are also suitable materials for use as fillers. Mixtures of the above materials are also suitable for use as fillers.

[0065] Preferred silicon oxides have a BET surface area of ​​50 to 800 m 2 / g. These materials can be vapor phase or precipitated. Preferred filler materials are pretreated silicas, such as commercially available hydrophobic silicas. An example of a commercially available hydrophobic silica suitable for use in the composition is available from Wacker Chemie AG. H2000, which is fumed silica treated with hexamethyldisilazane and has a 140m 2 Another example of a commercially available hydrophobic silica suitable for use in the composition is Siloxane, available from Evonik Industries AG. D10, which is a precipitated polydimethylsiloxane-treated silica with a 90 m 2 / g of BET surface area.

[0066] In some embodiments, the foam control composition comprises component (C). In one such embodiment, component (C) is present in the foam control composition at 1-10 parts by weight based on 100 parts by weight of component (A). In these amounts, component (C) may 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 is in the range of 95:5 to 5:95. In one such embodiment, the weight ratio of component (B) to component (C) in the composition is in the range of 80:20 to 20:80.

[0067] In certain embodiments, component (C) is a resin. Preferably, the resin comprises two or more types of siloxane units. In some embodiments, the resin comprises M units and Q units. The molar ratio of M units to Q units in the resin can be 0.5 to 2.0. Preferably, the molar ratio of M units to Q units in the resin is 0.6 to 1.0. The solubility of the resin in component (A) may depend at least in part on the ratio of M units to Q units in the resin.

[0068] In one embodiment, at least one M unit is of formula (R 11 )3SiO 1 / 2 and at least one Q unit is of the formula SiO 4 / 2Among them, R 11 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. 11 SiO 3 / 2 The unit or formula R 11 2SiO 2 / 2 When provided, based on the sum of all units in component (C), R 11 SiO 3 / 2 Unit or R 11 2SiO 2 / 2 The unit is present in the resin in an amount of 0.01 to 20 mol%. Preferably, based on the sum of all units in component (C), R 11 SiO 3 / 2 Unit or R 11 2SiO 2 / 2 The units are present in the resin in an amount of 0.01 to 5 mol%.The resin may also contain up to 10 wt.% of free, Si-bonded hydroxyl or alkoxy groups, such as methoxy or ethoxy groups.

[0069] In some embodiments, the resin may be a solid. In other embodiments, the resin may be a solid when measured at a temperature of 25° C. and a pressure of 1014.25 hPa using a rheometer equipped with a 25 mm diameter cone and plate at 10 (s -1 ) shear rate conditions, the resin may exhibit a viscosity greater than 1000 mPa·s. The weight average molecular weight of the resin described above as measured by SEC (relative to polystyrene standards) is preferably 200 to 200,000 g / mole. More preferably, the weight average molecular weight of the resin described above as measured by SEC is 1000-20,000 g / mole.

[0070] In some embodiments, the foam control composition comprises 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, based in each case on 100 parts by weight of the total weight of components (A), (B), and, when used, (C). In these embodiments, component (D) can be used to provide the foam control composition as a dispersion. Preferably, component (D) comprises a water-insoluble organic compound having a boiling point above 100° C. at a pressure of 900 to 1100 hPa, in particular 1014.25 hPa. As used herein, the term "water-insoluble" means a solubility in water of no more than 2% by weight at 25° C. and at a pressure of 1013.25 hPa. Suitable water-insoluble organic compounds include mineral oils, natural oils, isoparaffins, polyisobutene, residues from oxyalcohol synthesis, esters of low molecular weight synthetic carboxylic acids such as pentane-1,3-diol diisobutyrate, fatty acid esters such as octyl stearate, lauryl 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 may also be used, as well as products from BASF sold under the trademark and Block copolymers based on ethylene oxide and propylene oxide are sold with an average molecular weight of 2700 to 5000 and a hydrophilic-lipophilic balance (HLB) of 1 to 7.

[0071] Preferably, when formed, the foam control composition is a viscous mixture of the components and, when observed, has an appearance that is transparent to opaque and colorless to brown. In certain embodiments, the foam control composition exhibits a viscosity of 10 to 2,000,000 mPa·s, preferably 2,000 to 50,000 mPa·s, in each case measured according to DIN 53019 at 25° C. and 1014.25 hPa, preferably using a rheometer equipped with a 25 mm diameter cone and plate. The foam control composition can be prepared by known methods, for example, by mixing all desired components. Mixing the components can be achieved by generating high shear forces, for example, in a colloid mill, a dissolver, or a rotor-stator homogenizer. This mixing operation can be carried out under reduced pressure to prevent the incorporation of air that may be present, for example, in fillers.

[0072] Embodiments of the foam control composition can be used to reduce or prevent the formation of foam in aqueous systems, particularly foam generated by detergent compositions during washing. Thus, the composition can be included in an aqueous detergent. Preferably, in these embodiments, the aqueous detergent comprises a surfactant system. The surfactant system comprises 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 used in aqueous detergents. An example of a suitable anionic surfactant is sodium dodecylbenzene sulfonate. Suitable nonionic surfactants include alcohol ethoxylates, which ensure the effectiveness of the detergent at lower wash temperatures (e.g., 40°C). However, other surfactants, such as cationic surfactants, amphoteric surfactants, and zwitterionic surfactants, and mixtures thereof, can be included as part of the surfactant system.

[0073] 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. In order to avoid and reduce the chance of any coalescence, emulsification, sedimentation or separation, it is preferred that the density of the foam control composition matches the density of the liquid laundry detergent provided by the combination of other components in the detergent (e.g., surfactant system). Preferably, in these embodiments, the foam control composition has a density of 1.00-1.10 g / mL as defined in the methods of, for example, ASTM D333, ISO 2811 or DIN 51757. By matching the density of the foam control composition to that of the liquid laundry detergent, the above-mentioned compatibility issues can be minimized.

[0074] It should be understood that the foam control composition is not limited to use in liquid laundry detergents. The foam control can be used in any application where it is desired to minimize or eliminate undesirable foam. For example, in some embodiments, the foam control composition can be provided in the form of a detergent or other type of cleaning composition further formulated into an emulsion, powder, dispersion, or another form. In addition, the foam control composition can be used in other known foam control applications in which organosilicon compounds are known to be used.

[0075] The foam control composition may be provided in liquid form (eg an emulsion, a dispersion) or in another form (eg a powder).

[0076] In embodiments where the foam control composition is provided in an emulsified form, emulsifiers known for use in preparing silicone emulsions may be used. Suitable examples include anionic, cationic, or nonionic emulsifiers. In some embodiments, it may be desirable to use a mixture of emulsifiers. In these embodiments, it is preferred to use 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 glycerides. To improve the stability and shelf life of the resulting emulsion, a thickener may be used. Known thickener compounds may include polyacrylic acids, polyacrylates; cellulose ethers such as carboxymethylcellulose and hydroxyethylcellulose; natural thickeners such as xanthan gum; and polyurethanes; as well as preservatives and other common additives as thickeners. Preferably, in these embodiments, the emulsion comprises a continuous phase comprising water.

[0077] In embodiments where the foam control composition is provided as a dispersion, components (A), (B) and, when used, (C) may be dispersed in component (D). In this embodiment, component (D) may be a water-insoluble organic compound and form the continuous phase.

[0078] In embodiments where the foam control composition is provided as a powder, it is preferred that the foam control composition comprises only components (A) to (C), with component (D) being optionally present. Providing the foam control composition in powder form is accomplished by methods known in the art, such as spray drying or coagulation granulation, and by using known additives. Thus, as an example, when the foam control composition is in powder form, it preferably comprises 2 to 20% by weight of the foam control composition and 80 to 98% by weight of a powder comprising one or more additives. Suitable additives may 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.

[0079] In the above-described embodiments, the foam control composition can be used in a method for preventing and / or reducing foam formation in certain media in which foam control is desired. Such a method can include providing foam control and introducing the foam control composition into the medium. The foam control composition can be introduced into the medium in one of the above-described forms, such as a liquid, an emulsion, a dispersion, or another form. After introduction, the foam control composition can be mixed with the medium to prevent or reduce foam.

[0080] Example

[0081] The following examples are provided solely to further illustrate and disclose embodiments of the foam control composition. All parts and percentages used to describe the examples and their preparation are by weight, unless otherwise stated. Furthermore, unless otherwise stated, the following examples and their preparation were conducted at 1014.25 hPa and 20° C., or at the temperature resulting from mixing the reactants at 20° C., without additional heating or cooling.

[0082] Preparation Example 1

[0083] 10.0 g of the average formula (CH3)3-Si-O-[SiH(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3 polyorganosiloxane was added to a 100 mL flask containing 0.52 g of Stryker reagent [CuH(PPh3)3]6 (which is commercially available from Sigma-Aldrich, USA) dissolved in 20 mL of anhydrous toluene (which is commercially available from Sigma-Aldrich, USA), and 10.0 g of n-butanol (which is commercially available from Sigma-Aldrich, USA) was added to the mixture of Stryker reagent and anhydrous toluene under vigorous stirring. The resulting mixture was heated to 110°C and monitored by FT-IR. After refluxing for 8 hours, no residual Si-H was observed by FTIR. The mixture was cooled to room temperature and (which is commercially available from Sigma-Aldrich, USA) and filtered. The solvent was removed using a rotary evaporator to obtain 18.0 g of the formula (CH3)3-Si-O-[SiR(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3(R=butyloxy) products. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0084] Preparation Example 2

[0085] 100.0 g of the average formula (CH3)3-Si-O-[SiH(CH3)-O] 40 -[Si(CH3)2-O] 40-Si(CH3)3 polyorganosiloxane was added to a 500 mL flask containing 4 g of palladium-activated carbon (Pd / C) (which is commercially available from Sigma-Aldrich, USA) dissolved in 80 mL of anhydrous toluene (which is commercially available from Sigma-Aldrich, USA), and 75.0 g of cyclohexanol (which is commercially available from Sigma-Aldrich, USA) was added to the mixture of Pd / C and anhydrous toluene under vigorous stirring. The resulting mixture was heated to 100°C and monitored by FT-IR. After refluxing for 6 hours, no residual Si-H was observed by FTIR. The mixture was cooled to room temperature and (which is commercially available from Sigma-Aldrich, USA) and filtered. The solvent was removed using a rotary evaporator to obtain 160.0 g of the formula (CH3)3-Si-O-[SiR(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3(R=cyclohexyloxy) products. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0086] Preparation Example 3

[0087] 50.0 g of the average formula (CH3)3-Si-O-[SiH(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3 polyorganosiloxane was added to a 500 mL flask containing 2 g of Stryker reagent [CuH(PPh3)3]6 (which is commercially available from Sigma-Aldrich, USA) dissolved in 10 mL of anhydrous toluene (which is commercially available from Sigma-Aldrich, USA), and 37.3 g of cyclohexanone (which is commercially available from Sigma-Aldrich, USA) was added to the mixture of Stryker reagent and anhydrous toluene under vigorous stirring. The resulting mixture was heated to 110°C and monitored by FT-IR. After reflux for 7 hours, no residual Si-H was observed by FTIR. The mixture was cooled to room temperature and (which is commercially available from Sigma-Aldrich, USA) and filtered. The solvent was removed using a rotary evaporator to obtain 52.4 g of a product of the formula (CH3)3-Si-O-[SiR(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3(R=cyclohexyloxy) dark grey fluid. 1 H-NMR, 29Si-NMR and FTIR analyses confirmed the structure of the product.

[0088] Preparation Example 4

[0089] 50.0 g of the average formula (CH3)3-Si-O-[SiH(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3 polyorganosiloxane was added to a 500 mL flask containing 2 g of Stryker reagent [CuH(PPh3)3]6 (which is commercially available from Sigma-Aldrich, USA) dissolved in 10 mL of anhydrous xylene (which is commercially available from Sigma-Aldrich, USA), and 37.3 g of 6,8-dioxabicyclo[3.2.1]octanone (which can be obtained from Cyrene) was added under vigorous stirring. TM The mixture was heated to 110 ° C and monitored by FT-IR. After reflux for 7 hours, no residual Si-H was observed by FTIR. The mixture was cooled to room temperature and the mixture was washed with water. (which is commercially available from Sigma-Aldrich, USA) and filtered. The solvent was removed using a rotary evaporator to obtain 52.4 g of a product of the formula (CH3)3-Si-O-[SiR(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3(R=6,8-dioxabicyclo[3.2.1]octyloxy) viscous dark gray fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0090] Preparation Example 5

[0091] 50.0 g of the average formula (CH3)3-Si-O-[SiH(CH3)-O] 40 -[Si(CH3)2-O] 40-Si(CH3)3 polyorganosiloxane was added to a 500 mL flask containing 0.65 g of Stryker reagent [CuH(PPh3)3]6 (which is commercially available from Sigma-Aldrich, USA) dissolved in 10 mL of anhydrous xylene (which is commercially available from Sigma-Aldrich, USA), and 59 g of 1-naphthaldehyde (which is commercially available from Sigma-Aldrich, USA) was added to the mixture of Stryker reagent and anhydrous xylene under vigorous stirring. The resulting mixture was heated to 110°C and monitored by FT-IR. After refluxing for 3 hours, no residual Si-H was observed by FTIR. The mixture was cooled to room temperature and (which is commercially available from Sigma-Aldrich, USA) and filtered. The solvent was removed using a rotary evaporator to obtain 97.5 g of a product of the formula (CH3)3-Si-O-[SiR(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3(R=1-oxynaphthyl) caramel-colored fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0092] Preparation Example 6

[0093] 50.0 g of the average formula (CH3)3-Si-O-[SiH(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3 polyorganosiloxane was added to a 500 mL flask containing 0.5 g of Stryker reagent [CuH(PPh3)3]6 (which is commercially available from Sigma-Aldrich, USA) dissolved in 10 mL of anhydrous xylene (which is commercially available from Sigma-Aldrich, USA), and 51.7 g of 2,4-dimethyl-3-cyclohexenylcarboxaldehyde (which is commercially available from Sigma-Aldrich, USA under the name of Trivertal) was added to the mixture of Stryker reagent and anhydrous xylene under vigorous stirring. The resulting mixture was heated to 110°C and monitored by FT-IR. After refluxing for 3 hours, no residual Si-H was observed by FTIR. The mixture was cooled to room temperature and the mixture was dried by FTIR. (which is commercially available from Sigma-Aldrich, USA) and filtered. The solvent was removed using a rotary evaporator to obtain 97.3 g of a product of the formula (CH3)3-Si-O-[SiR(CH3)-O] 40 -[Si(CH3)2-O] 40-Si(CH3)3(R=2,4-dimethyl-3-cyclohexenemethoxy) light brown fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0094] Preparation Example 7

[0095] 50.0 g of the average formula (CH3)3-Si-O-[SiH(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3 polyorganosiloxane was added to a 500 mL flask containing 1.5 g of Stryker reagent [CuH(PPh3)3]6 (which is commercially available from Sigma-Aldrich, USA) dissolved in 10 mL of anhydrous xylene (which is commercially available from Sigma-Aldrich, USA), and 42.0 g of cyclohexanecarboxaldehyde (which is commercially available from Sigma-Aldrich, USA) was added to the mixture of Stryker reagent and anhydrous xylene under vigorous stirring. The resulting mixture was heated to 110°C and monitored by FT-IR. After refluxing for 3 hours, no residual Si-H was observed by FTIR. The mixture was cooled to room temperature and (which is commercially available from Sigma-Aldrich, USA) and filtered. The solvent was removed using a rotary evaporator to obtain 80.5 g of a product of the formula (CH3)3-Si-O-[SiR(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3(R=cyclohexanemethoxy) clear light green fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0096] Preparation Example 8

[0097] 50.0 g of the average formula (CH3)3-Si-O-[SiH(CH3)-O] 40 -[Si(CH3)2-O] 40-Si(CH3)3 polyorganosiloxane was added to a 500 mL flask containing 1.2 g of Stryker reagent [CuH(PPh3)3]6 (which is commercially available from Sigma-Aldrich, USA) dissolved in 10 mL of anhydrous xylene (which is commercially available from Sigma-Aldrich, USA), and 71.2 g of 2-methyl-3-(p-isopropylphenyl)propanal (which is commercially available from Sigma-Aldrich, USA) was added to the mixture of Stryker reagent and anhydrous xylene under vigorous stirring. The resulting mixture was heated to 110°C and monitored by FT-IR. After refluxing for 3 hours, no residual Si-H was observed by FTIR. The mixture was cooled to room temperature and the mixture was purified by FTIR. (which is commercially available from Sigma-Aldrich, USA) and filtered. The solvent was removed using a rotary evaporator to obtain 80.5 g of a product of the formula (CH3)3-Si-O-[SiR(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3(R=3-(p-isopropylphenyl-2-methyl-propoxy) dark opaque fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0098] Preparation Example 9

[0099] 50.0 g of the average formula (CH3)3-Si-O-[SiH(CH3)-O] 40 -[Si(CH3)2-O] 40 -Si(CH3)3 polyorganosiloxane was added to a 500 mL flask containing 1.2 g of Stryker reagent [CuH(PPh3)3]6 (which is commercially available from Sigma-Aldrich, USA) dissolved in 10 mL of anhydrous xylene (which is commercially available from Sigma-Aldrich, USA), and 50.2 g of 3-phenylpropanal (which is commercially available from Sigma-Aldrich, USA) was added to the mixture of Stryker reagent and anhydrous xylene under vigorous stirring. The resulting mixture was heated to 110°C and monitored by FT-IR. After refluxing for 3 hours, no residual Si-H was observed by FTIR. The mixture was cooled to room temperature and (which is commercially available from Aldrich, USA) and filtered. The solvent was removed using a rotary evaporator to obtain 62.1 g of a product of the formula (CH3)3-Si-O-[SiR(CH3)-O] 40 -[Si(CH3)2-O] 40-Si(CH3)3(R=3-phenylpropoxy) clear dark green fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0100] Examples 1-9

[0101] Examples 1-9, described below and shown in Table 1, illustrate certain embodiments of the foam control compositions.

[0102] To prepare the foam control compositions of Examples 1-9, 87.0 parts of each of the products of Preparative Examples 1-9 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. Each of components (B)-(D) is described below. Component B is a foam control composition having a BET surface area of ​​90 m 2 / g of hydrophobic polydimethylsiloxane treated silica. Component (C) is a silicone resin solid at room temperature, which is 29 Si-NMR and IR analysis showed that the 1 / 2 unit, 50 mol% SiO 4 / 2 unit, 8 mol% C2H5OSiO 3 / 2 unit and 2 mol% HOSiO 3 / 2 Unit composition and having a weight average molar mass of 7900 g / mol (relative to a polystyrene standard of 296 g / mol to 3,150,000 g / mol). Component (D) is a hydrocarbon mixture having a boiling point range of 235-270°C.

[0103] Table 1

[0104]

[0105]

[0106] The foam control performance of Examples 1-9 relative to the Comparative Example, Comparative Example 1, is reported in Table 2. The foam control performance of each of Examples 1-9 was measured using the Rotating Drum Test as described below.

[0107] Each rotating drum test includes adding 0.0025 parts of the foam control composition of each of Examples 1-9 to 100 parts of commercially available liquid detergents, which contain both nonionic surfactants and anionic surfactants. Then 1.8 parts of detergent solutions containing the defoamer composition of each of Examples 1-9 are added to 300 parts of water. The resulting mixture is then added to the cylinder for testing. Before carrying out each rotating drum test, the cylinder is sealed. After sealing the cylinder, the cylinder is rotated at 30 rpm for 12 minutes. Comparative Example 1 is carried out using the rotating drum test described above. However, for Comparative Example 1, the cylinder does not contain any material of Examples 1-9. After the cylinder is rotated as described above, the foam height of Examples 1-9 and Comparative Example 1 is measured immediately, and the foam height is recorded in mm.

[0108] Table 2

[0109]

[0110]

[0111] The lower the foam height reported in Table 2, the better the foam control performance. As illustrated in Table 2, none of the foam control compositions of Examples 1-9 increased the height of the foam produced after subjecting to the rotating drum test compared to Comparative Example 1. In fact, the foam control compositions of Examples 2-9 exhibited a decrease in the height of the foam produced compared to Comparative Example 1, and each of these Examples exhibited good to very good foam control.

[0112] Preparation Example 10

[0113] 75.0 g of methoxy-functional methylpolysiloxane (commercially available from Wacker Chemie AG) was added. MSE 100) and 95.9 g of 2-phenyl-1-ethanol (which is commercially available from Sigma-Aldrich, USA) were added to a flask and heated to 185°C. 0.60 g of Ti(OBu)4 (which is commercially available from Sigma-Aldrich, USA) was added to the flask under N2. The mixture was heated at 180°C for 3 hours until no more methanol was collected. The mixture was cooled to room temperature and additional volatiles were removed using a rotary evaporator to obtain 148.0 g of product, which includes the formula (RO)3Si-[MeSiO(OR)] Y -Si(OR)3(R=C6H5(CH2)2) material is a light amber fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0114] Preparation Example 11

[0115] 60.0 g of methoxy-functional methylpolysiloxane (commercially available from Wacker Chemie AG) was added. MSE 100) and 74.8 g of 2-phenyl-1-ethanol (which is commercially available from Sigma-Aldrich, USA) were added to a flask and heated to 180°C. 0.23 g of Ti(OBu)4 (which is commercially available from Sigma-Aldrich, USA) was added to the flask under N2. The mixture was heated at 180°C for 3 hours until no more methanol was collected. 0.24 g of water was then added to the flask and the reaction was refluxed for another 3 hours until no additional methanol was collected. The mixture was cooled to room temperature and additional volatiles were removed using a rotary evaporator to give 115.0 g of product comprising the formula (RO)3Si-[MeSiO(OR)] Y -Si(OR)3(R=C6H5(CH2)2) material is a light amber fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0116] Preparation Example 12

[0117] 54.3 g of methoxy-functional methylpolysiloxane (commercially available from Wacker Chemie AG) was added. MSE 100) and 73.5 g of 3-phenyl-1-propanol (which is commercially available from Sigma-Aldrich, USA) were added to a flask and heated to 180°C. 0.21 g of Ti(OBu)4 (which is commercially available from Sigma-Aldrich, USA) was added to the flask under N2. The mixture was heated at 180°C for 3 hours until no more methanol was collected. 0.23 g of water was then added to the flask and the reactants were refluxed for another 3 hours until no more additional methanol was collected. The mixture was cooled to room temperature and additional volatiles were removed using a rotary evaporator to give 110.0 g of product comprising the formula (RO)3Si-[MeSiO(OR)] Y -Si(OR)3(R=C6H5(CH2)3) material is a light amber fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0118] Preparation Example 13

[0119] 50.7 g of methoxy-functional methylpolysiloxane (commercially available from Wacker Chemie AG) was added. MSE 100) and 57.5 g of cyclohexanemethanol (which is commercially available from Sigma-Aldrich, USA) were added to a flask and heated to 180°C. 0.18 g of Ti(OBu)4 (which is commercially available from Sigma-Aldrich, USA) was added to the flask under N2. The mixture was heated at 180°C for 3 hours until no more methanol was collected. 0.20 g of water was then added to the flask and the reactants were refluxed for another 3 hours until no additional methanol was collected. The mixture was cooled to room temperature and additional volatiles were removed using a rotary evaporator to give 90 g of product comprising the formula (RO)3Si-[MeSiO(OR)] Y -Si(OR)3(R=C6H 11 CH2) of the material of the light amber fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0120] Preparation Example 14

[0121] 34.7 g of methoxy-functional methylpolysiloxane (commercially available from Wacker Chemie AG) was added. MSE 100) and 53.5 g of geraniol (which is commercially available from Sigma-Aldrich, USA) were added to a flask and heated to 180°C. 0.18 g of Ti(OBu)4 (which is commercially available from Sigma-Aldrich, USA) was added to the flask under N2. The mixture was heated at 180°C for 3 hours until no more methanol was collected. 0.14 g of water was then added to the flask and the reaction was refluxed for another 3 hours until no additional methanol was collected. The mixture was cooled to room temperature and additional volatiles were removed using a rotary evaporator to obtain 75.0 g of product comprising the formula (RO)3Si-[MeSiO(OR)] Y -Si(OR)3(R=C 10 H 17 )) of the material is a light amber fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0122] Preparation Example 15

[0123] 40.8 g of methoxy-functional methylpolysiloxane (commercially available from Wacker Chemie AG) was added. MSE 100) and 50.8 g of 1-phenyl-1-ethanol (which is commercially available from Sigma-Aldrich, USA) were added to a flask and heated to 180°C. 0.26 g of Ti(OBu)4 (which is commercially available from Sigma-Aldrich, USA) was added to the flask under N2. The mixture was heated at 180°C for 3 hours until no more methanol was collected. 0.16 g of water was then added to the flask and the reactants were refluxed for another 3 hours until no more additional methanol was collected. The mixture was cooled to room temperature and additional volatiles were removed using a rotary evaporator to give 77.0 g of product comprising the formula (RO)3Si-[MeSiO(OR)] Y -Si(OR)3(R=CH3(C6H5)CH) material is a light amber fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0124] Preparation Example 16

[0125] 36.5 g of methoxy-functional methylpolysiloxane (commercially available from Wacker Chemie AG) was added. MSE 100) and 49.5 g of 2-phenyl-1-propanol (which is commercially available from Sigma-Aldrich, USA) were added to a flask and heated to 180°C. 0.16 g of Ti(OBu)4 (which is commercially available from Sigma-Aldrich, USA) was added to the flask under N2. The mixture was heated at 180°C for 3 hours until no more methanol was collected. 0.15 g of water was then added to the flask and the reactants were refluxed for another 3 hours until no more additional methanol was collected. The mixture was cooled to room temperature and additional volatiles were removed using a rotary evaporator to give 72.0 g of product comprising the formula (RO)3Si-[MeSiO(OR)] Y -Si(OR)3(R=CH3(C6H5)CHCH2) material is a light amber fluid. 1 H-NMR, 29 Si-NMR and FTIR analyses confirmed the structure of the product.

[0126] Examples 10-16, 10a, 11a and 14a

[0127] Examples 10-16, 10a, 11a, and 14a, described below and shown in Table 3, illustrate certain embodiments of the foam control compositions.

[0128] To prepare the foam control compositions of Examples 10-16, 87.0 parts of each of the products of Preparative Examples 10-16 were mixed in a dissolver at room temperature with 3.0 parts of component (B), 5.0 parts of component (C), and 5.0 parts of component (D) for 10 minutes. Each of components (B)-(D) is as follows. Component B is a foam control composition having a BET surface area of ​​90 m 2 / gram of hydrophobic polydimethylsiloxane treated silica. Component (C) is a silicone resin solid at room temperature, which is 29 Si-NMR and IR analysis showed that the 1 / 2 unit, 50 mol% SiO 4 / 2 unit, 8 mol% C2H5OSiO 3 / 2 unit and 2 mol% HOSiO 3 / 2 Unit composition and having a weight average molar mass of 7900 g / mol (relative to a polystyrene standard of 296 g / mol to 3,150,000 g / mol). Component (D) is a hydrocarbon mixture having a boiling point range of 235-270°C.

[0129] To prepare the foam control compositions of Examples 10a, 11a and 14a, 97.0 parts of the products of Preparative Examples 10, 11 and 14 were mixed in a dissolver at room temperature for 10 minutes with 3.0 parts of Component (B). Component B was as described above.

[0130] Table 3

[0131]

[0132] The suds control performance of Examples 10-16, 10a, 11a, and 14a relative to the Comparative Example, Comparative Example 2 is reported in Table 4. The suds control performance of each of Examples 10-16, 10a, 11a, and 14a was measured using the Rotating Drum Test as described below.

[0133] Each rotating drum test includes adding 0.0025 part of the foam control composition of Examples 10-16, 10a, 11a and 14a to 100 parts of commercially available liquid detergents (0.025 weight %), which contain both nonionic surfactants and anionic surfactants. Then 1.8 parts of detergent solutions containing the defoamer composition of Examples 10-16, 10a, 11a and 14a are added to 300 parts of water. Then the resulting mixture is added to the cylinder and tested. Before carrying out each rotating drum test, the cylinder is sealed. After the cylinder is sealed, the cylinder is rotated at 30rpm for 12 minutes. Comparative Example 2 is carried out using the above-mentioned rotating drum test. However, for Comparative Example 2, the cylinder does not include any material of Example 10-16. After the cylinder is rotated as described above, the foam height of Examples 10-16, 10a, 11a and 14a and Comparative Example 2 is measured immediately, and the foam height is recorded in mm.

[0134] Table 4

[0135] Example Foam height Comparative Example 2 300 Example 10 240 Example 10a 220 Example 11 180 Example 11a 190 Example 12 160 Example 13 220 Example 14 170 Example 14a 180 Example 15 220 Example 16 160

[0136] The lower the foam height reported in Table 4, the better the foam control performance. As illustrated in Table 4, none of the foam control compositions of Examples 10-16, 10a, 11a, and 14a increased the height of the foam produced after subjecting the composition to the rotating drum test compared to Comparative Example 2. In fact, all of the foam control compositions of Examples 10-16, 10a, 11a, and 14a showed a decrease in the height of the foam produced compared to Comparative Example 2, and each of these Examples exhibited good to very good foam control.

[0137] It is apparent from the foregoing detailed description that various modifications, additions, and other alternative embodiments are possible without departing from the true scope and spirit. The embodiments discussed herein were chosen and described in order to provide the best illustration of the principles of the invention and its practical application, thereby enabling those skilled in the art to use the invention in its various embodiments and to make various modifications suitable for the specific use contemplated. It should be understood that all such modifications and variations are within the scope of the invention.

Claims

1. A foam control composition comprising component (A) and component (B), The component (A) comprises units of the formula: (R 1 O) a (R 2 O) b (R 3 O) c R 4 d R 5 e R 6 f SiO[SiR 7 R 8 O] X [SiR 9 (OR 10 )O] Y Si(R 1 O) a (R 2 O) b (R 3 O) c R 4 d R 5 e R 6 f , in R 1 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms, R 2 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms, R 3 is a hydrogen atom or a saturated or unsaturated group having 6 to 40 carbon atoms, R 4 is a saturated or unsaturated group having 1 to 12 carbon atoms, R 5 is a saturated or unsaturated group having 1 to 12 carbon atoms, R 6 is a saturated or unsaturated group having 1 to 12 carbon atoms, R 7 is a saturated or unsaturated group having 1 to 12 carbon atoms, R 8 is a saturated or unsaturated group having 1 to 12 carbon atoms, R 9 is a saturated or unsaturated group having 1 to 12 carbon atoms, R 10 is a saturated or unsaturated group having 6 to 40 carbon atoms, wherein the subscripts a, b, c, d, e, and f each have a value from 0 to 3, with the constraint that: a+b+c+d+e+f=3; X is an integer from 0 to 1000, and Y is an integer from 1 to 1000; and The component (B) contains a filler.

2. The composition according to claim 1, further comprising component (C), wherein component (C) is a resin comprising M units and Q units, wherein at least one M unit is of the formula (R 11 )3SiO 1 / 2 and at least one Q unit is of the formula SiO 4 / 2 Among them, R 11 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.

3. The composition according to claim 1, further comprising a component (D) comprising one or more water-insoluble organic compounds.

4. The composition of claim 1, wherein the composition exhibits a viscosity of 10 to 2,000,000 mPa·s and a density of 0.9 to 1.20 g / mL at 25°C and 1014.25 hPa.

5. The composition of claim 1, wherein the filler comprises silicon oxide, metal oxide, or a mixture thereof.

6. The composition of claim 1, wherein component (A) is a hydrophobic fluid exhibiting a surface tension of 20 to 40 millinewtons per meter.

7. The composition of claim 1, wherein component (A) has a weight average molecular weight of 2,000 to 50,000 Daltons.

8. The composition according to claim 1, wherein component (A) comprises [SiR 7 R 8 O] X unit.

9. The composition according to claim 1, wherein component (A) comprises [SiR 9 (OR 10 )O] Y unit.

10. The composition of claim 1, wherein Y is from 10 to 1000.

11. The composition according to claim 1, wherein R 1 、R 2 、R 3 or R 10 At least one of the adjacent carbon atoms is interrupted by one or more oxygen atoms or nitrogen atoms.

12. The composition according to claim 2, wherein the weight ratio of component (B) to component (C) in the composition is 95:5 to 5:

95.

13. The composition of claim 2, wherein the molar ratio of M units to Q units is from 0.5 to 2.

0.

14. The composition according to claim 2, wherein component (C) further comprises a compound of formula R 11 SiO 3 / 2 The unit or formula R 11 2SiO 2 / 2 Based on the sum of all units in component (C), R 11 SiO 3 / 2 Unit or R 11 2SiO 2 / 2 The units are present in an amount of 0.01 to 20 mol%.

15. The composition of claim 3, wherein at least one of the one or more water-insoluble organic compounds has a boiling point above 100°C at 900 to 1100 hPa.

16. The composition according to claim 8, wherein component (A) comprises [SiR 7 R 8 O] X unit.

17. The composition according to claim 8, wherein component (A) comprises [SiR 7 R 8 O] X unit.

18. The composition according to claim 16, wherein component (A) comprises [SiR 7 R 8 O] X unit.

19. The composition according to claim 9, wherein component (A) comprises [SiR 9 (OR 10 )O] Y unit.

20. The composition according to claim 9, wherein component (A) comprises [SiR 9 (OR 10 )O] Y unit.

21. The composition of claim 19, wherein component (A) comprises SiR 9 (OR 10 )O] Y unit.

22. An aqueous detergent comprising: The composition according to claim 1; and The surfactant system comprises at least one surfactant.

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