WO2010057855A1 - Compositions antimousse - Google Patents

Compositions antimousse Download PDF

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Publication number
WO2010057855A1
WO2010057855A1 PCT/EP2009/065236 EP2009065236W WO2010057855A1 WO 2010057855 A1 WO2010057855 A1 WO 2010057855A1 EP 2009065236 W EP2009065236 W EP 2009065236W WO 2010057855 A1 WO2010057855 A1 WO 2010057855A1
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radical
optionally
compounds
weight
units
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PCT/EP2009/065236
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German (de)
English (en)
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Holger Rautschek
Elisabeth Brehm
Christian Herzig
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Wacker Chemie Ag
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Application filed by Wacker Chemie Ag filed Critical Wacker Chemie Ag
Priority to EP09752366A priority Critical patent/EP2350167B1/fr
Priority to US13/129,159 priority patent/US8084566B2/en
Priority to JP2011536841A priority patent/JP2012509376A/ja
Priority to BRPI0922005A priority patent/BRPI0922005A2/pt
Priority to CN2009801424982A priority patent/CN102197065A/zh
Publication of WO2010057855A1 publication Critical patent/WO2010057855A1/fr

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • B01D19/0409—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance compounds containing Si-atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/445—Block-or graft-polymers containing polysiloxane sequences containing polyester sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/445—Block-or graft-polymers containing polysiloxane sequences containing polyester sequences
    • C08G77/448—Block-or graft-polymers containing polysiloxane sequences containing polyester sequences containing polycarbonate sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/458—Block-or graft-polymers containing polysiloxane sequences containing polyurethane sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/42—Block-or graft-polymers containing polysiloxane sequences
    • C08G77/46—Block-or graft-polymers containing polysiloxane sequences containing polyether sequences
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/04—Polysiloxanes
    • C08L83/08—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/10—Block- or graft-copolymers containing polysiloxane sequences
    • C08L83/12—Block- or graft-copolymers containing polysiloxane sequences containing polyether sequences
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0026—Low foaming or foam regulating compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/373—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicones
    • C11D3/3742—Nitrogen containing silicones

Definitions

  • the invention relates to compositions comprising specific polysiloxane copolymers, processes for their preparation and their use as defoamers, in particular for defoaming aqueous surfactant formulations.
  • foaming may cause problems when these systems are brought into more or less intensive contact with gaseous substances, for example when fumigating waste water, when intensive Stirring liquids, in distillation, washing or dyeing processes or in filling operations.
  • R 1 denotes a monovalent, optionally substituted hydrocarbon radical to which Si-H groups can be attached in a hydrosilylation reaction, preferably an aliphatic C-C multiple bond-forming hydrocarbon radical,
  • A is a divalent, polar organic radical selected from the group of -O-, -C (O) -O-, -O-C (O) -, -O-C (O) -O-, -C (O) -NH-, -NH-C (O) -, urethane radical and urea radical, preferably an oxygen atom -O-,
  • a 1 denotes a bivalent, polar organic radical selected from the group consisting of -O-, -NH- and -NR 1 -, wherein R is a monovalent hydrocarbon radical having 1 to 18 carbon atoms, preferably an oxygen atom -0-, n is an integer from 1 to 20, preferably 1 to 4, particularly preferably 2 or 3, and m is a whole Number, preferably 5 to 50, is reacted, with the proviso that the m units (AC n H2n) may be the same or different, and in a second step, the thus obtained HA ⁇ groups intermediates (4)
  • R 9 may be the same or different and is a hydrogen atom or a monovalent, optionally substituted hydrocarbon radical, g is 0, 1, 2 or 3 and h is 0, 1, 2 or 3, with the proviso that the sum is g + h ⁇ Is 3 and in less than 50% of all units of formula (II) in the organopolysiloxane resin the sum g + h is 2, optionally (C) polyether-modified siloxanes other than (A), optionally
  • compositions do not contain polyorganosiloxanes in which more than 90% of the units are di-functional units of the formula SiR '' 202 / 2 are equal to hydrocarbon radical with R ''.
  • compositions according to the invention are free of polyorganosiloxanes in which more than 90%, preferably more than 50%, of the units contain difunctional units of the formula SiR " 2 O 2/2 R '' are hydrocarbon radicals, such as, for example, substantially linear polydimethylsiloxanes or polymethylphenylsiloxanes.
  • compositions according to the invention are preferably free of highly dispersed silicic acid, more preferably free of inorganic fillers.
  • compositions are those consisting of
  • R 1 denotes a monovalent, optionally substituted hydrocarbon radical to which Si-H groups can be attached in a hydrosilylation reaction, preferably an aliphatic C-C multiple bond-forming hydrocarbon radical,
  • A is a divalent, polar organic radical selected from the group of -O-, -C (O) -O-, -O-C (O) -, -O-C (O) -O-, -C (O) -NH-, -NH-C (O) -, urethane radical and urea radical, preferably an oxygen atom -O-,
  • a 1 denotes a bivalent, polar organic radical selected from the group consisting of -O-, -NH- and -NR * -, wherein R is a monovalent hydrocarbon radical having 1 to 18 carbon atoms, preferably an oxygen atom -0-, n is an integer from 1 to 20, preferably 1 to 4, particularly preferably 2 or 3, and m is a whole Number, preferably 5 to 50, is to be reacted with the proviso that the m units (A ⁇ C n H2n) may be the same or different, and in a second step the intermediates ⁇ 4 ⁇ containing
  • R 8 may be the same or different and is hydrogen or a monovalent, optionally substituted, SiC-bonded hydrocarbon radical,
  • R 9 may be the same or different and is a hydrogen atom or a monovalent, optionally substituted hydrocarbon radical, g is 0, 1, 2 or 3 and h is 0, 1, 2 or 3, with the proviso that the sum is g + h ⁇ 3, and in less than 50% of all units of formula (II) in the organopolysiloxane resin, the sum g + h is 2, optionally (C) polyether-modified siloxanes other than (A), optionally
  • compositions based on the polysiloxane copolymers (A) according to the invention are not only very compatible with aqueous surfactant formulations, but also without conventional defoamers based on substantially linear polyorganosiloxanes, in particular polydimethylsiloxanes, and without silicic acid - have excellent efficacy.
  • polysiloxane copolymers (A) used according to the invention are obtained as follows:
  • organopolysiloxanes (1) are preferably linear, cyclic or branched organopolysiloxanes of units of the general formula
  • R e H f Si0 (4- f) / 2 ID used, wherein R may be the same or different and is a monovalent, optionally substituted hydrocarbon radical having from 1 to 18 carbon atoms per radical, e is 0, 1, 2 or 3 and f 0, 1 or 2, with the proviso that the sum e + f is 0, 1, 2 or 3 and per molecule at least one Si ⁇ bound hydrogen atom, preferably at least 2 Si-bonded Wasserstoffatoine present.
  • Preferred organopolysiloxanes (1) are those of the general formula H g R 3 - g Si0 (SiR 2 O) o (SiRHO) p SiR 3 - g g H (III)
  • R has the meaning given above, g is 0, 1 or 2, o is 0 or an integer from 1 to 1500 and p is 0 or an integer from 1 to 200, with the proviso that at least one Si -bound
  • Hydrogen atom preferably at least two Si-bonded hydrogen atoms, are present.
  • radicals R are alkyl radicals, such as the methyl, ethyl, n-propyl, iso-propyl, 1-n-butyl, 2-n-butyl, isobutyl, tert-butyl, n-pentyl, iso-pentyl, neo-pentyl, tert.
  • the radical R is preferably a monovalent hydrocarbon radical having 1 to 6 carbon atoms, the methyl radical being particularly preferred.
  • radicals R 1 are alkenyl radicals, such as the vinyl,
  • the radical R 1 is preferably alkenyl radicals, particularly preferably ⁇ -alkenyl radicals, in particular the AlIyI rest.
  • Preferred oligomeric or polymeric compounds (2) are polyethers of the general formula
  • R 2 is a divalent hydrocarbon radical having 1 to 10 carbon atoms, preferably a radical of the formula -CHj-, -CH (CH 3 ) - or -C (CH 3 ) z -, and n and m have one of the meanings given above ,
  • organic compounds (5) which have at least two isocyanate groups per molecule are preferably those of the general formula
  • R 3 is a divalent hydrocarbon radical having 4 to 40 carbon atoms per radical.
  • organic compounds (5) are hexaraethylene-1,6-diisocyanate, isophorone diisocyanate, tolylene-2,4-diisocyanate, tolylene-2,6-diisocyanate, phenylene-1,3-diisocyanate, 4,4'-methylene bis (cyclohexyl isocyanate), 4, 4 'methylene bis (phenyl isocyanate) and dimethyl phenyl diisocyanate.
  • Organic compounds (5) are used in the second process step for the preparation of the component (A) used according to the invention preferably in amounts of 0.1 to 0.9 mol, more preferably 0.2 to 0.7 mol, isocyanate groups per mole of H- ⁇ ⁇ group used in the intermediate (4).
  • condensation catalysts (6) such as di-n-butyltin dilaurate, stannous octoate, dibutyltin diacetate, potassium octoate, bismuth carboxylate, zinc octoate, zirconium carboxylates or tert.
  • Amines such as dimethylcyclohexylamine, Dimethylaminopropyldipropanolamin, Pentamethyldipropylentriamin, N-methylimidazole or N-ethyl-morpholine used.
  • a preferred polysiloxane copolymer (A) is obtained by reacting in the first process step a methyl-terminated hydrogen-functional polysiloxane (1) which has pendant Si-bonded hydrogen atoms with an excess of polyether (2) of the formula (IV) and in the second process step the intermediate (4), a silicone polyether having a comb structure, is reacted with a diisocyanate (5) of the formula (V), wherein urethane groups are introduced into the polysiloxane copolymer. Also free polyether from the 1st step is bound by urethane formation.
  • the urethane groups in the hydrophilic polysiloxane copolymers (A) used according to the invention can act as donors and acceptors in the formation of hydrogen bonds.
  • R 4 is a hydrogen atom or a radical R which may contain one or more nitrogen atoms
  • R 5 may be the same or different and is a bivalent hydrocarbon radical having 1 to 10 carbon atoms per radical
  • R 6 is a trivalent organic radical having 1 to 100 Carbon atoms per radical, preferably a trivalent hydrocarbon radical having 1 to 100 carbon atoms, which contains one or more oxygen atoms
  • R 7 is a tetravalent organic radical having 1 to 100 carbon atoms per radical, preferably a tetravalent hydrocarbon radical having 1 to 100 carbon atoms, the contains one or more oxygen atoms
  • ⁇ 1 , n and m have one of the meanings given above.
  • Examples of compounds of the formula (VII) are methyl polyethylene oxide, butyl polyethylene oxide, methyl polyethylene oxide / polypropylene oxide and methyl polypropylene oxide.
  • Examples of compounds of the formula (VIII) are N-methyldiethanolamine, N-methyldipropanolamine, dimethylaminopropyldipropanolamine, N-dodecyldiethanolamine and N-stearyldipropanolamine.
  • Examples of compounds of the formula (XI) are 2, 4, 6-tris (dimethylaminomethyl) phenol, 1,1,1-tris (dimethylaminomethyl) -methanol and 2,4,6-tris (dimethylaminomethyl) - cyclohexanol.
  • Examples of compounds of the formula (XII) are N, N-bis (dimethylaminopropyl) -3-aminopropane-1,2-diol, N, N-bis (dimethylaminopropyl) -2-aminopropane-1,3-diol , N, N-bis (3-dimethylamino-propyl) -carbamic acid monoglyceride.
  • Examples of compounds of the formula (XIII) are dibutylarain, octylamine, benzylamine, 3- (cyclohexylamino) -propylamine, 2- (diethylamino) -ethylamine, dipropylenetriamine, isophoronediainin, dimethylaminopropylmethylamine, aminopropylmorpholine, N, N-bis (di - methylaminopropyl) amine and dimethylaminopropylamine.
  • compounds (7) are used for the preparation of the component (A) used according to the invention, these are preferably compounds of the formula (VII).
  • Compounds of the formula (VIII) are used in the second process step in amounts of preferably 0 to 2 mol, more preferably 0 to 1 mol, of HO group per mole of HA x group in compound (2).
  • Compounds of the formula (X) are used in the second process step in amounts of preferably 0 to 2 mol, more preferably 0 to 1 mol, of HO group per mole of H-A ⁇ group in compound (2).
  • xancopolymere in the preparation of Polysilo TM employed in this invention (A) can contribute to the lowering of the partially very high product viscosities optionally low-viscosity materials (D), such as alcohols or ethers, in particular those having a boiling point greater than 100 0 C, at the pressure of the surrounding Atrao- Sphere, ie at 900 to 1100 hPa, are added.
  • D optionally low-viscosity materials
  • Examples of these are ethanol, isopropanol and n-butanol, and preferably 2-butoxyethanol, diethylene glycol monobutyl ether, triethylene glycol monohexyl ether, methyl ether of dipropylene glycol, tetraethylene glycol monohexyl ether, hexaethylene glycol monooctyl ether, tetrahydrofuran, diethylene glycol diethyl ether and dimethoxyethane, with tetraethylene glycol monohexyl ether being particularly preferred.
  • polyether-modified siloxanes (C) which can generally be obtained by hydrosilylation of unsaturated polyethers with hydrogen siloxanes, are also useful for reducing the viscosity.
  • preferred addition amounts are up to 50% by weight, more preferably up to 30% by weight, based on the polysiloxane copolymers (A) prepared according to the invention.
  • Such additives also have the advantage that the resulting products are more readily dispersible in water than the pure polysiloxane copolymers.
  • the component (B) used according to the invention is preferably silicone resins of units of the formula (VI) in which 0 in 30%, preferably 0 to 5%, of the units in the resin is the sum c + d equal to 2.
  • the radicals R 9 are preferably alkyl radicals having 1 to 4 carbon atoms, particularly preferably methyl or ethyl radicals, in particular. Ethyl radicals.
  • Component (B) is particularly preferably organopolysiloxane resins which consist essentially of R 8 3 Si0i / 2 (M) and Si ⁇ 4/2 (Q) units with R 8 having the abovementioned meaning; these resins are also referred to as MQ resins.
  • the molar ratio of M to Q units is preferably in the range of 0.5 to 2.0, more preferably in the range of 0.6 to 1.0.
  • These silicone resins may also contain up to 10% by weight of free hydroxy or alkoxy groups.
  • R 8 is preferably methyl radical.
  • optionally used component (C) examples are those described in DE-B2 22 22 998, columns 3 and 4, lines 38-43, EP-A 1 424 117, sections [0072] and [0073], US Pat. No. 6,521,084, col 4 lines 35-44, US-B 6,187,891, columns 9/10, Table 1 and EP-B 1 076 073, page 3, which are to be included in the disclosure of the present invention.
  • the polyether-polysiloxane copolymers (C) can be blended with the polysiloxane copolymers (A) used according to the invention.
  • compositions according to the invention may contain all other substances contain, as they have been used in defoamer formulations, such as organic compounds (D).
  • the components (C) and (D) optionally used in the compositions according to the invention can, on the one hand, serve for setting a viscosity which can be handled conveniently, and on the other hand, they are specifically adapted to a specific application. be fit.
  • the defoamer formulation according to the invention can be adapted to the surfactant system which is to be defoamed.
  • the formulations of the invention may contain water (E).
  • water (E) are natural waters, e.g. Rainwater, groundwater, spring water, river water and seawater, chemical waters, e.g. demineralized water, distilled or (multiply) redistilled water, water for medical or pharmaceutical purposes, e.g. Purified water (Aqua purificata, Pharm. Eur. 3), Aqua deionisata, Aqua distillata, Aqua bidestillata, Aqua ad injectionam or Aqua conservata, Drinking water according to the German Drinking Water Ordinance and Mineral Waters.
  • Water (E) can be used in the compositions according to the invention preferably in amounts of from 0 to 60% by weight, particularly preferably 0 to 10% by weight, in each case based on the total weight of the composition.
  • the compositions according to the invention preferably contain no component (E).
  • the additives (F) are preferably those which selected from organic, thickening polymers, preservatives, dyes and fragrances.
  • compositions of the invention are particularly preferably made
  • compositions according to the invention consist in particular of
  • compositions of the invention are preferably viscous clear to opaque colorless to brownish liquids.
  • the compositions according to the invention have a viscosity of preferably 100 to 2,000,000 mm 2 / s, more preferably from 500 to 50,000 mmVs, in particular from 1,000 to 20,000 mmVs, in each case at 25 ° C.
  • compositions according to the invention may be solutions or dispersions.
  • compositions according to the invention can be used everywhere where compositions based on organosilicon compounds have hitherto also been used. In particular, they can be used as defoamers.
  • the inventive method is carried out at temperatures of preferably -10 to + 15O 0 C, more preferably 5 to 100 0 C, and the pressure of the surrounding atmosphere, that is about 900 to 1100 hPa performed.
  • the process of the invention can also be carried out at higher or lower pressures, such as at 3000 to 4000 hPa or 1 to 10 hPa.
  • polysiloxane copolymer (Polymer Al): 67 g of a terminated with methyl groups siloxane from dimethyl thylsiloxy- and hydridomethylsiloxy having an active hydrogen content of 0.133% and a viscosity of 72 MMCs (25 0 C) are ethers with vigorous stirring with 408 g of a Allylpoly- (560 ppm H 2 O content) with a PO / EO ratio of 4.0 and an iodine value of 11.2 mixed and heated to 100 ° C.
  • Polymer A2 The preparation is carried out according to the procedure described for Polymer Al, except that instead of the surfactant (Emulan HE 50), 120 g of the intermediate having the viscosity of 870 IanV were used to dilute the high-viscosity siloxane. The viscosity was 4090 rnmVs.
  • the preparation is carried out according to the procedure described for Polymer Al, with the modification that no surfactant (Emulan HE 50) was used.
  • the viscosity was more than 100,000 mm 2 / s (25 0 C, no shear).
  • Dl A hydrocarbon mixture having a boiling range of 235-270 0 C (commercially available under the name Exxsol D 100 S at Staub & Co, D-Nuremberg);
  • D3 A polypropylene glycol having a viscosity of about 440 nm (available under the name Pluriol P 2000 from BASF SE, D-Ludwigshafen);
  • D4 1,2 propanediol (available from Sigma-Aldrich Chemie GmbH, D-Steinheim).
  • D5 2, 2, 4-trimethyl-3,3-pentanediol diisobutyrate (available under the name Eastman TXIB from Sigma-Aldrich Chemie GmbH, D-Steinheim).
  • compositions are clear, viscous, slightly yellowish liquids having the viscosities shown in Table 1.
  • Table 1

Abstract

La présente invention concerne des compositions contenant : (A) des copolymères de polysiloxane pouvant être produits par une première étape au cours de laquelle des organopolysiloxanes (1) qui présentent par molécule au moins un atome d'hydrogène lié à Si, sont convertis avec des composés oligomères ou polymères dans une large mesure linéaires de formule générale R1-(A-CnH2n)m-A1H (I), les m unités (A-CnH2n) pouvant être identiques ou différentes, et par une deuxième étape au cours de laquelle les produits intermédiaires (4) contenant des groupes H-A1 ainsi obtenus sont convertis avec des composés organiques (5) qui présentent par molécule au moins deux groupes isocyanate, et éventuellement avec d'autres composés (7); (B) des résines organopolysiloxanes se composant d'unités de formule R8g(R9O)hSiO(4-g-h)/2 (VI); éventuellement (C) des siloxanes modifiés polyéther différents de (A); éventuellement (D) des composés organiques; éventuellement (E) de l'eau; et éventuellement (F) des additifs. Selon l'invention, les radicaux et indices mentionnés ont les significations indiquées dans la revendication 1. L'invention a également pour objet un précédé pour préparer ces compositions et leur utilisation en tant qu'agents antimousse en particulier pour supprimer la mousse de formulations tensio-actives aqueuses.
PCT/EP2009/065236 2008-11-20 2009-11-16 Compositions antimousse WO2010057855A1 (fr)

Priority Applications (5)

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EP09752366A EP2350167B1 (fr) 2008-11-20 2009-11-16 Compositions antimousse
US13/129,159 US8084566B2 (en) 2008-11-20 2009-11-16 Antifoaming compositions
JP2011536841A JP2012509376A (ja) 2008-11-20 2009-11-16 消泡剤組成物
BRPI0922005A BRPI0922005A2 (pt) 2008-11-20 2009-11-16 composições antiespumantes.
CN2009801424982A CN102197065A (zh) 2008-11-20 2009-11-16 消泡剂组合物

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DE102008043944A1 (de) 2010-05-27
EP2350167A1 (fr) 2011-08-03
JP2012509376A (ja) 2012-04-19
BRPI0922005A2 (pt) 2015-12-15
CN102197065A (zh) 2011-09-21
US20110218137A1 (en) 2011-09-08
US8084566B2 (en) 2011-12-27
EP2350167B1 (fr) 2013-01-16
KR20110069827A (ko) 2011-06-23

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