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WO1993001269A1 - Ingredient antimoussant - Google Patents

Ingredient antimoussant Download PDF

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Publication number
WO1993001269A1
WO1993001269A1 PCT/GB1992/001188 GB9201188W WO9301269A1 WO 1993001269 A1 WO1993001269 A1 WO 1993001269A1 GB 9201188 W GB9201188 W GB 9201188W WO 9301269 A1 WO9301269 A1 WO 9301269A1
Authority
WO
WIPO (PCT)
Prior art keywords
antifoam
coating
particles according
particles
carrier material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/GB1992/001188
Other languages
English (en)
Inventor
Galip Akay
Peter Robert Garrett
John William Harold Yorke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever NV
Original Assignee
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unilever NV filed Critical Unilever NV
Priority to EP92913711A priority Critical patent/EP0593544A1/fr
Priority to BR9206230A priority patent/BR9206230A/pt
Priority to AU21960/92A priority patent/AU670032B2/en
Priority to CA002112463A priority patent/CA2112463A1/fr
Publication of WO1993001269A1 publication Critical patent/WO1993001269A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
    • 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
    • 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

Definitions

  • This invention relates to antifoam particles with silicone as the antifoam active material.
  • silicone oils possibly mixed with finely divided silica, are effective at reducing foaming. Silicone oils which are frequently used have a viscosity of about 3,000 centipoise. The silicone oil is absorbed onto a porous carrier in order to place it in a particulate form. Typically sodium carbonate, sodium perborate or sodium tripolyphosphate is used as a carrier substance.
  • EP-A-142910 discloses a blend of silicones, having a high overall viscosity, dispersed in a water-soluble or water-dispersible organic carrier which has a melting point not exceeding 90°C. We have found that it is very difficulty to obtain stable dispersions of high viscosity silicone in a molten organic carrier, and consequently itis difficult to obtain solidified dispersions of the kind contemplated by this prior document.
  • antifoam particles for incorporation into a detergent product comprising a porous particulate organic carrier material; silicone antifoam with a viscosity of 10,000 cP or more absorbed onto the porous carrier; and a coating layer enclosing the carrier and absorbed silicone antifoam.
  • the organic carrier material may be a finely divided solid with inter-particle rather than intra-particle porosity.
  • a number of useful organic carrier materials have a Hildebrand solubility parameter of at least 24 MPa , and such materials may be preferred.
  • the organic carrier material will generally not have a melting point below 100°C and it may or may not be water- insoluble.
  • the viscosity may be well above this figure, for instance in the range 20,000 to 30,000 centipoise. Viscosity is sometimes quoted as kinematic viscosity, in centistokes. The latter is the dynamic viscosity divided by the density.
  • the silicone oil may have silica particles suspended therein as antifoam promoter, as is conventional for silicone antifoams of lower viscosity.
  • Suitable silicone oils are available from Dow Corning, notably Dow-Corning X2-3302.
  • the organic carrier is the organic carrier
  • the organic carrier material must be porous, and hence able to absorb silicone oil. This porosity may be inter- particle rather than intra-particle.
  • a number of suitable organic carriers are polymeric in nature and have a molecular weight in excess of 1,000.
  • a solubility parameter of 24 MPa- or more signifies that the carrier material should be relatively highly polar in nature.
  • Such organic carrier materials often have water associated with their structure. They include glucose, cellulosic and proteinaceous material as well as polyvinyl alcohol.
  • fibrillated cellulosic materials can display high absorbence for silicone oil, extending up to as much as 2.5 times the weight of cellulosic material.
  • Commercially available cellulosic materials include wood flour, hydrolysed cereal solids, jute and cotton flock.
  • Preferred materials include glucose, sucrose and polymers incorporating glucose residues such as cellulose.
  • Wood flour and fibrillated cellulose are examples of materials whose particles have large aspect ratio, large inter-particle porosity but low intra-particle porosity.
  • the carrier material does not melt below 100°C. Then it does not melt during the washing process. It may have no melting point at all, as for instance in the case of cellulose which does not melt but eventually decomposes when heated sufficiently.
  • Polymeric carrier materials may have a molecular weight substantially above 1,000, e.g. greater than 2,000.
  • a coating may also delay release at the time of use.
  • Materials which may be used to provide coating layers include organic polymers and polymer blends, non-soap surfactants which may possibly be derived from a polymer such as fatty acyl and diacyl derivatives of polyethylene glycol, and mixtures of soap with fatty acid.
  • the coating is an impervious layer (unlike the porous carrier).
  • a coating which is effective to retain a large majority of the antifoam within the coated particles during storage can be effective to retain a large proportion of the activity of the silicone antifoam, even though a small proportion of silicone antifoam may escape through the coating and become deactivated.
  • a second coating may be applied over the top of a first coating so as to create a more effective barrier to the escape of silicone from the particles.
  • the material which is encapsulated by the coating, or material which is embedded within the coating may include a constituent which will swell or effervesce in contact with the water of a wash liquor so that initial penetration of water will cause swelling which in turn will cause outright rupture of the coated particles.
  • An effervescent material which will cause swelling by liberation of gas may be an acid which can react with carbonate or bicarbonate present in the wash liquor or it may be both particles of an acid and particles of carbonate or bicarbonate. These will not react as long as they are dry but will react together causing effervescence once they are wetted by wash water.
  • the inner coating provides mechanical strength while the outer coating provides a barrier to prevent escape of the antifoam.
  • the outer coating is a water-insoluble or poorly soluble. Such an arrangement can serve to delay release of the encapsulated material when the particles are placed in water until such time as the water has penetrated the outer coating (and then, more rapidly, the inner coating). Swelling of the inner particles when water does penetrate to them may at that point serve to rupture the outer coating so that afte a delay caused by the outer coating the subsequent release is not restrained by the outer coating. The release of th water insoluble outer coat can also be achieved when its temperature is raised above its melting temperature during wash.
  • Effervescent material can be an acid and a carbonate which will not react in the coating, or can be solely an acid, to react with a carbonate-containing wash liquor.
  • coating materials which may be used alone or in blends are:
  • PEG Polyethylene glycol
  • PEO polyethylene oxide
  • Polyvinyl pyrrolidone Generally used in combination with other polymers.
  • PAA Poly (acrylic acid)
  • PCL poly (caprolactone)
  • PCL-diol poly (caprolactone) diol
  • PCL has high permeability despite the fact it is not water soluble. May also be used to form blends with other water soluble polymers. It is also biodegradable.
  • EAA-CP Poly (ethylene-acrylic acid) copolymer
  • Oxidised polyethylene This polymer is used to provide compatibility between polyalkylenes and water- soluble polymers or to modify the release characteristics of the other water-soluble polymers such as PEG's and PEO's.
  • Polyethylene glycol - fatty acid esters These polymeric surfactants offer a wide range of melting point and water solubility/dispersibility depending on the length of the polyethylene glycol chain and fatty acid chain.
  • the monolaurate of polyethylene glycol with average molecular weight 6000 has melting point of 61°C and is highly water-soluble while the dilaurate of polyethylene glycol with average molecular weight 600 has melting point of 24°C and is not water-soluble, merely water-dispersible.
  • These materials can be used to provide two coatings which are compatible with each other but have different properties.
  • PEG 6000 monolaurate can be used to provide a mechanically strong water-soluble first coating while PEG 600 dilaurate can be applied as a second coating forming a vapour barrier.
  • Soap/fatty acid/polymer especially sodium stearate/lauric acid/ethylene acrylic acid copolymer with a weight ratio 0.5 to 2.0 : 0.5 to 2.0: 1.
  • the presence of the polymer can lead to a lowering of melting point, crystallinity and crystal size. It also modifies the water solubility of the coating.
  • Fatty alcohol ethoxylate/polymer especially when the polymer is in lesser amount than the fatty alcohol ethoxylate and is polycaprolactone or ethylene acrylic acid copolymer. Inclusion of such polymer or other polymers leads to an increase in melting point and in the hardness of the coating material.
  • Polyethylene glycol/citric acid Anhydrous citric acid can be dissolved in PEG at temperatures of about 70°C or above. If the PEG has a molecular weight greater than 4,000, a mechanically strong, weakly-crystalline solid material is formed upon cooling. Such a blend may be used as an outer coating. The weight ratio of PEG to citric acid would typically lie in a range from 3:1 to 1.5:1.
  • Such a blend of PEG and citric acid is preferably formed using PEG of molecular weight 6,000 - 12,000.
  • a blend of PEG and citric acid may also incorporate particles of other materials such as silica, a carbonate or a bicarbonate which will react with the citric acid in the presence ,of water at the time of use.
  • Absorption of the silicone antifoam onto the carrier material can be accomplished merely by mixing the materials together, for example using a Z-blade mixer.
  • Coating of carrier material particles with absorbed antifoam can be carried out using various known coating techniques. It can be sufficient to bring about agglomeration, using a binding agent which then forms a coating. The preferred method, however, is the process described and claimed in our published European application EP-A-382 464 the disclosure of which is incorporated herein by reference.
  • the process set out in that European application comprises a first step of forming a melt of a coating material with a disperse phase therein, and a second step of destabilizing the melt by addition of solid particles and/or by cooling, causing the melt to crumble to a particulate form whereof the particles comprise the coating material with the disperse phase embedded therein.
  • the particles of carrier material with absorbed antifoam constitute the said disperse phase.
  • Solid particles which are added to induce crumbling are conveniently referred to as a "crumbling agent”.
  • any mixer When carrying out this coating process it is desirable to avoid severe stresses which could cause break up of the porous organic carrier. Low rotational speed of any mixer is therefore preferable. It may be desirable to dose the molten coating material onto the organic carrier with absorbed antifoam until melt formation commences, then start cooling and the addition of crumbling agent without waiting for complete formation of a molten mess. Addition of crumbling agent preferably takes place with the temperature of the melt only slightly above the melting point of the coating material: 5°C above the melting point is suitable. Desirably the addition of crumbling agent is accompanied by cooling of the mixture.
  • the process can be carried out as a batch process, for instance using a Z blade mixer, or as a continuous process, for instance using a twin screw-extruder with more than one zone for introduction of material into the extruder.
  • crumbling could be brought about in different apparatus from that used for initial melt formation.
  • Antifoam particles in accordance with the present invention will normally be admixed into a detergent product This will generally be a particulate product including detergent active and detergency builder.
  • a detergent product will typically contain 5 to 40% of detergent active and 10 to 70% of detergency builder, by weight based on the whole product.
  • Other conventional materials typically present in such products include some or all of bleach, bleach activa ⁇ or, antiredeposition agents, fluorescer and filler.
  • Antifoam particles in accordance with this invention may contain carrier material and silicone antifoam in a weight ratio ranging from 4:1 to 1:3.
  • the silicone antifoam may constitute from 3 to 40% by weight of the coated antifoam particles more usually from 5 to 30% by weight.
  • Antifoam particles in accordance with this invention will typically provide 0.1 to 10% by weight of a detergent product more preferably 0.2 to 5% by weight, yet more preferably 0.05 to 3% by weight of the detergent product.
  • the quantity of antifoam particles incorporated in a detergent product will generally be arranged such that the content of silicone antifoam based on the overall detergent product ranges from 0.05 to 3% by weight of the overall detergent product.
  • X2-3302 High viscosity silicone antifoam, viscosity 30,000 cS, ex Dow Corning.
  • SCMG Sodium carboxymethyl cellulose, mol.wt
  • Avicel PH 101 250000 ex BDH. It is used with Avicel PH 101 after the absorption of silicone antifoam into Avicel PH 101.
  • Main ingredients of whey are lactose
  • PEG Polyethylene glycol - number following
  • PEG indicates molecular weight (Mw), ex
  • Aerosil R972 Pyrogenic hydrophobed silica (ex
  • High viscosity silicone antifoam (Dow-Corning X2-3302) was mixed with various carrier materials in a sufficient amount that the silicone constituted about 25% by weight of the resulting compositions. These antifoam compositions were stored for various periods of time. Then the antifoam activity of each composition was assessed. Assessment was carried out using 200g of a detergent powder whose formulation is given in Table 1 below. This was used to wash a clean cotton load (2.5kg) in 16 litres of 12° French hardness water using a front-loading automatic washing machine. At the start of the wash sufficient amount of antifoam granules was added to the detergent base powder to obtain silicone antifoam level of 0.5 wt%. The composition of the detergent base powder used in the foaming tests is given in Table 1. After 45 minutes the height of the foam in the washing machine was noted on a scale from 0 to 100 marked on the machine. The results obtained are set out in Table 2 below.
  • odiu carbonate 120 1 0.84 0.28 1.14
  • odium bicarbonate 80 1 0.36 0.36 100 ydrated alumina 4 3.23 3.23
  • odium chloride 32 2 100 vicel Pll 101 32.0 50 1 1.97 0.18 2.15 1 vicel WC _> ⁇ .5 42.8 1 0.87 0.13 1.00 1 olyvinylpyrrol idone cross] inked) 21.1 180 2.93 2.93 43 olyvinyl alcohol ol wt 2,000 25.8 350 10 olyvinyl alcohol ol wt 20,000 25.8 700 5 0.69 elatin 26.8 330 8 0.77 rea 32.3 540 5 ood flour 32.0 340 2 4.23
  • Example 1 The procedure of Example 1 was repeated using several organic materials, with various loadings of high viscosity silicone on the carrier, and a storage period of 1 week in every case. These loadings all fell within a range of 10 to 50% by weight. The materials and the results obtained are set out below.
  • Antifoam particles without coating, were prepared by mixing equal amounts of Avicel PH 101 microcrystalline cellulose and X2-3302 silicone antifoam in a Z-blade mixer, 5 at approximately 60"C. The antifoam was absorbed by the cellulose and a powdery material resulted. The resultant powder is kept at 60°C under vacuum for 24 hours before being used or stored under ambient conditions.
  • Avicel PH 1C1 contains residual water not exceeding 5 wt%.
  • Example 3 was repeated using Avicel WC595.
  • the anti ⁇ foam particles contained 60% of Avicel WC595 and 40% of X2- 3302 silicone anti-foam.
  • Avicel 595 contains residual water in an amount not exceeding 5 wt%.
  • Foam control profiles were assessed after storage for one week and after storage for eleven weeks. The results were:
  • Antifoam particles were produced as in Example 1 and then coated with various coating materials.
  • the coating procedure was in accordance with EP-A-382 464. It was as follows:
  • the antifoam particles were placed in a Z-blade mixer at a temperature of about 80°C.
  • the coating material was melted separately and added progressively to the Z-blad mixer at a temperature of 70-80°C which was above its melting point. A dispersion in the coating material began to form.
  • Coated particles prepared in this way contained materials as set out in Table 4 below where all percentages are by weight based on the final particles. Particles with no coating were included as a comparison and appear as Example 5A in Table 4.
  • composition of detergent base powder used in the dispensing tests.
  • Example 5B and 5D show that application of a coating as in Example 5B and 5D enhanced the storage stability of the antifoam, and a second coating gave a greater improvement.
  • Antifoam particles were prepared by mixing X2-3302 silicone antifoam with Avicel PH 101 microcrystalline cellulose.
  • the first coating material at a temperature T M _ ⁇ _. was mixed with the antifoam particles (as solid dispersed phase).
  • T M _ ⁇ _. the melt was cooled down to a temperature T Tin . just above the melting point of the first coating material and a crumbling agent was added. Cooling was continued until a temperature T M . N was reached.
  • T MAX _ 2 the temperature of the coated particles from the first stage was raised to T MAX _ 2 and the second coating material was added at this temperature. Mixing was continued until the agglomeration of the particles was observed. At this stage the temperature was lowered to a temperature T_ .
  • antifoam activity of these particles and the dispenser residue from a powder containing them were measured after two weeks of storage at room temperature. Antifoam activity was tested in the same manner as in Example 1. For this the antifoam particles were incorporated into a detergent powder of the composition set out in Table 1 in a sufficient amount that there was 0.5 wt% silicone antifoam based on the overall powder. Powder dispensing tests were carried out in the same manner as in Example 5. For these tests antifoam granules were mixed into the detergent powder set out in Table 3, in an amount sufficient to provide 0.6 wt% of silicone antifoam based on the overall powder. Mixing was carried out by mechanical mixing ( Turbula Mixer) for 15 minutes.
  • This example describes a triple coating of the high viscosity antifoam with a water insoluble surfactant coat followed by a water soluble coat which contains an effervescent powder and finally a third outermost water soluble coat which contains a water absorbing layer of anhydrous sodium carbonate.
  • high viscosity antifoam is absorbed onto microcrystalline cellulose (Avicel PH 101) and coated with a mixture of sodium stearate, lauric acid and ethylene acrylic acid copolymer (AC5120) (weight ratios 45 : 45 : 10) at 75°C in a lKg capacity Z-blade mixer with a rotational speed of 20 rpm.
  • Effervescent crumbling agent for the second coat (citric acid + ⁇ sodium bicarbonate) 50

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

Particules antimoussantes s'incorporant dans un produit détergent en particules et comprenant un agent antimoussant en silicone à viscosité élevée absorbé sur un support organique poreux en particules, par exemple, de la cellulose ou de la sciure de bois. Ceci empêche la désactivation apparaissant quand ce type d'antimoussant est absorbé sur un support inorganique. Le support organique et l'agent antimoussant sont contenus dans une couche de revêtement.
PCT/GB1992/001188 1991-07-01 1992-07-01 Ingredient antimoussant Ceased WO1993001269A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP92913711A EP0593544A1 (fr) 1991-07-01 1992-07-01 Ingredient antimoussant
BR9206230A BR9206230A (pt) 1991-07-01 1992-07-01 Partículas antiespuma para incorporação em um produto detergente
AU21960/92A AU670032B2 (en) 1991-07-01 1992-07-01 Antifoam ingredient
CA002112463A CA2112463A1 (fr) 1991-07-01 1992-07-01 Ingredient anti-mousse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9114195.2 1991-07-01
GB919114195A GB9114195D0 (en) 1991-07-01 1991-07-01 Antifoam ingredient

Publications (1)

Publication Number Publication Date
WO1993001269A1 true WO1993001269A1 (fr) 1993-01-21

Family

ID=10697630

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1992/001188 Ceased WO1993001269A1 (fr) 1991-07-01 1992-07-01 Ingredient antimoussant

Country Status (6)

Country Link
EP (1) EP0593544A1 (fr)
AU (1) AU670032B2 (fr)
BR (1) BR9206230A (fr)
CA (1) CA2112463A1 (fr)
GB (1) GB9114195D0 (fr)
WO (1) WO1993001269A1 (fr)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636685A3 (fr) * 1993-07-29 1995-06-07 Dow Corning Sa Agents anti-mousse sous forme de particules et leur utilisation.
EP0636684A3 (fr) * 1993-07-29 1995-06-07 Dow Corning Sa Agents anti-mousse sous forme de particules.
EP0684303A2 (fr) 1994-05-27 1995-11-29 Unilever Plc Compositions détergents
EP0718018A3 (fr) * 1994-12-24 1997-01-22 Dow Corning Sa Agents de contrÔle de mousse sous forme de particules et leur utilisation
EP0723795A3 (fr) * 1995-01-26 1997-01-22 Dow Corning Sa Agents anti-mousse sous forme de particules et leur utilisation
EP0897973A1 (fr) * 1997-08-18 1999-02-24 Clariant GmbH Agents de lavage et de nettoyage
WO2000020546A1 (fr) * 1998-10-05 2000-04-13 The Procter & Gamble Company Systeme moussant et compositions detergentes le contenant
WO2002074894A1 (fr) * 2001-02-22 2002-09-26 Henkel Kommanditgesellschaft Auf Aktien Granules regulateurs de mousse
EP1234870A3 (fr) * 2001-02-22 2002-11-13 Cognis Deutschland GmbH & Co. KG Additifs solides pour les détergents, leur préparation et utilisation
US6521587B1 (en) 1999-08-13 2003-02-18 Dow Corning S.A. Silicone foam control agent
US6521586B1 (en) 1999-08-13 2003-02-18 Dow Corning S.A. Silicone foam control agent
EP1081217A3 (fr) * 1999-08-25 2003-07-02 Cognis Deutschland GmbH & Co. KG Additif detergent solide
WO2010028898A1 (fr) * 2008-09-12 2010-03-18 Unilever Plc Améliorations se rapportant à des assouplisseurs de tissu
WO2010039575A1 (fr) * 2008-10-02 2010-04-08 Dow Corning Corporation Composition granulaire
WO2011127030A1 (fr) * 2010-04-06 2011-10-13 The Procter & Gamble Company Produits encapsulés
US8633148B2 (en) 2010-04-06 2014-01-21 The Procter & Gamble Company Encapsulates
WO2016064666A1 (fr) * 2014-10-21 2016-04-28 Dow Global Technologies Llc Compositions anti-mousse stables
WO2021030352A1 (fr) * 2019-08-14 2021-02-18 Elkem Silicones USA Corp. Procédé de préparation d'une composition de régulation de mousse sous forme de granulés ou de poudre

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
AU684701B3 (en) * 1997-03-27 1997-12-18 David Garth Tetley Miles Hand cleaning formulation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462184A1 (fr) * 1979-07-31 1981-02-13 Eurand France Nouvelles compositions antimousses sous forme de granules utilisables notamment dans les lessives en poudre
EP0040091A1 (fr) * 1980-05-12 1981-11-18 Unilever Plc Granulés supprimant la mousse à utiliser dans des compositions détergentes
US4451387A (en) * 1982-08-19 1984-05-29 Lever Brothers Company Suds control agents and detergent compositions containing them
EP0206522A2 (fr) * 1985-05-23 1986-12-30 Unilever Plc Agent antimousse pour compositions détergentes

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
US5176350A (en) * 1988-05-31 1993-01-05 Union Switch & Signal Inc. Equipment mounting assembly for railroad car couplers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462184A1 (fr) * 1979-07-31 1981-02-13 Eurand France Nouvelles compositions antimousses sous forme de granules utilisables notamment dans les lessives en poudre
EP0040091A1 (fr) * 1980-05-12 1981-11-18 Unilever Plc Granulés supprimant la mousse à utiliser dans des compositions détergentes
US4451387A (en) * 1982-08-19 1984-05-29 Lever Brothers Company Suds control agents and detergent compositions containing them
EP0206522A2 (fr) * 1985-05-23 1986-12-30 Unilever Plc Agent antimousse pour compositions détergentes

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636685A3 (fr) * 1993-07-29 1995-06-07 Dow Corning Sa Agents anti-mousse sous forme de particules et leur utilisation.
EP0636684A3 (fr) * 1993-07-29 1995-06-07 Dow Corning Sa Agents anti-mousse sous forme de particules.
AU671547B2 (en) * 1993-07-29 1996-08-29 Dow Corning S.A. Particulate foam control agents and their use
AU671755B2 (en) * 1993-07-29 1996-09-05 Dow Corning S.A. Particulate foam control agents
EP0684303A2 (fr) 1994-05-27 1995-11-29 Unilever Plc Compositions détergents
EP0718018A3 (fr) * 1994-12-24 1997-01-22 Dow Corning Sa Agents de contrÔle de mousse sous forme de particules et leur utilisation
EP0723795A3 (fr) * 1995-01-26 1997-01-22 Dow Corning Sa Agents anti-mousse sous forme de particules et leur utilisation
EP0897973A1 (fr) * 1997-08-18 1999-02-24 Clariant GmbH Agents de lavage et de nettoyage
WO2000020546A1 (fr) * 1998-10-05 2000-04-13 The Procter & Gamble Company Systeme moussant et compositions detergentes le contenant
US6521586B1 (en) 1999-08-13 2003-02-18 Dow Corning S.A. Silicone foam control agent
US6521587B1 (en) 1999-08-13 2003-02-18 Dow Corning S.A. Silicone foam control agent
EP1081217A3 (fr) * 1999-08-25 2003-07-02 Cognis Deutschland GmbH & Co. KG Additif detergent solide
EP1234870A3 (fr) * 2001-02-22 2002-11-13 Cognis Deutschland GmbH & Co. KG Additifs solides pour les détergents, leur préparation et utilisation
WO2002074894A1 (fr) * 2001-02-22 2002-09-26 Henkel Kommanditgesellschaft Auf Aktien Granules regulateurs de mousse
US7279453B2 (en) 2001-02-22 2007-10-09 Henkel Kommanditgesellschaft Auf Aktien Foam regulating granulate
WO2010028898A1 (fr) * 2008-09-12 2010-03-18 Unilever Plc Améliorations se rapportant à des assouplisseurs de tissu
WO2010039575A1 (fr) * 2008-10-02 2010-04-08 Dow Corning Corporation Composition granulaire
CN102811699A (zh) * 2010-04-06 2012-12-05 宝洁公司 包封物
WO2011127030A1 (fr) * 2010-04-06 2011-10-13 The Procter & Gamble Company Produits encapsulés
US8633148B2 (en) 2010-04-06 2014-01-21 The Procter & Gamble Company Encapsulates
US8822402B2 (en) 2010-04-06 2014-09-02 The Procter & Gamble Company Encapsulates
US9023783B2 (en) 2010-04-06 2015-05-05 The Procter & Gamble Company Encapsulates
WO2016064666A1 (fr) * 2014-10-21 2016-04-28 Dow Global Technologies Llc Compositions anti-mousse stables
CN106795458A (zh) * 2014-10-21 2017-05-31 陶氏环球技术有限责任公司 稳定的消泡组合物
JP2017533091A (ja) * 2014-10-21 2017-11-09 ダウ グローバル テクノロジーズ エルエルシー 安定した消泡組成物
WO2021030352A1 (fr) * 2019-08-14 2021-02-18 Elkem Silicones USA Corp. Procédé de préparation d'une composition de régulation de mousse sous forme de granulés ou de poudre
US11845018B2 (en) 2019-08-14 2023-12-19 Elkem Silicones USA Corp. Method for preparing a foam control composition in a granular or a powder form

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BR9206230A (pt) 1994-12-27
CA2112463A1 (fr) 1993-01-21
AU2196092A (en) 1993-02-11
AU670032B2 (en) 1996-07-04
EP0593544A1 (fr) 1994-04-27
GB9114195D0 (en) 1991-08-21

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