EP1994131A1 - Composition et procede - Google Patents

Composition et procede

Info

Publication number
EP1994131A1
EP1994131A1 EP07732001A EP07732001A EP1994131A1 EP 1994131 A1 EP1994131 A1 EP 1994131A1 EP 07732001 A EP07732001 A EP 07732001A EP 07732001 A EP07732001 A EP 07732001A EP 1994131 A1 EP1994131 A1 EP 1994131A1
Authority
EP
European Patent Office
Prior art keywords
composition
carpet
silica
acid
cleaning
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.)
Withdrawn
Application number
EP07732001A
Other languages
German (de)
English (en)
Inventor
Zefferino Righetto
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.)
Reckitt Benckiser NV
Original Assignee
Reckitt Benckiser 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 Reckitt Benckiser NV filed Critical Reckitt Benckiser NV
Publication of EP1994131A1 publication Critical patent/EP1994131A1/fr
Withdrawn legal-status Critical Current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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0031—Carpet, upholstery, fur or leather cleansers
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • 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
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/20—Water-insoluble oxides

Definitions

  • the present invention relates to a powdered composition suitable for cleaning carpets and a process of cleaning carpets using a powdered composition.
  • carpets are made from natural or synthetic fibers they are all prone to soiling / staining when contacted with household items.
  • Foods, grease, oils, beverages in particular such as coffee, tea and soft drinks especially those containing acidic dyes can cause unsightly, often dark stains on carpets.
  • fibres may become soiled as a result of dirt particles, clay, dust, i.e. particulate soils, coming into contact with and adhering to the fibers of the carpet .
  • These latter soils often appear in the form of a diffuse layer of soils rather than in the form of spots and tend to accumulate particularly in the so called "high traffic areas" such as near doors as a result of intensive use of the carpets in such areas .
  • a vacuum cleaner alone does not remove this type of soil as mere physical action is insufficient to remove it from the carpet .
  • Compositions for the cleaning of carpets are already- known in the art.
  • liquid carpet cleaning compositions based on surfactants other adjunct materials is disclosed in US-A-2005/250662.
  • compositions are not without their disadvantages. Firstly, whether the compositions are applied manually or with the use of an application machine, the compositions due to their liquid nature require a long time to dry typically of the order of 16 hours) from the carpet after the cleaning operation is complete.
  • the residual carpet cleaning liquor is associated with issues such as carpet distortion (shrinkage / expansion) , carpet discoloration, odor emanation and can even attract new dirt deposits.
  • An object of the present invention is to obviate / mitigate the problems outlined above.
  • a water free powdered composition suitable for use in a carpet cleaning operation comprising at least 30wt% precipitated / fumed silica component .
  • composition of the present invention is that the composition is applicable to all carpet types, especially delicate natural fibers, and are also safe to all carpet dye types particularly sensitive natural dyes used therein.
  • the composition of the present invention is also suitable to be used to clean upholstery, car seats covering and general fabrics.
  • compositions of the present invention may be applied directly on the carpet without causing damage to the carpet.
  • water-free is intended to mean that the composition contains less than 5wt% water, more preferably less than 3wt% water and most preferably less than lwt% water.
  • the silica is present in the composition in an amount of greater than 40wt%, more preferably greater than 45wt% and most preferably greater than 50wt%.
  • the particle size of the silica is up to 350 ⁇ m, more preferably up to 200 ⁇ m, more preferably up to lOO ⁇ m, more preferably up to 50 ⁇ m, more preferably up to 40 ⁇ m, more preferably up to 30 ⁇ m, more preferably up to 20 ⁇ m, and most preferably up to lO ⁇ m.
  • a preferred adjunct material incorporated into the carpet cleaning composition is a metal salt, e.g. an alkali / alkaline metal salt, such as Na, K, Ca or Mg.
  • the metal salt such is a bicarbonate, sulphate, carbon- ate, sesquicarbonate sodium citrate or a mixture thereof.
  • the present invention encompasses a process of cleaning a " carpet comprising the use of a powdered composition comprising a precipitated / fumed silica component.
  • said process of cleaning a carpet further comprises the steps of:
  • the composition may be applied to the carpet in any convenient manner.
  • the composition may be applied (e.g. manually) via a dispenser such as a rigid / flexible container having a suitable dispensing aperture.
  • a dispenser such as a rigid / flexible container having a suitable dispensing aperture.
  • Such a dispenser may be operated by shaking over the area of carpet to be cleaned.
  • the composition may be applied via a mechanical device.
  • the mechanical device can be a stand alone device or more preferably the mechanical device is attached to / associated with the composition removal device (e.g. a vacuum cleaner (see later) ) .
  • the mechanical device may partially substitute the vacuum cleaner nozzle.
  • the area to be cleaned by applying the compositions according to the present invention may be of any size. in- deed a complete section or more preferably the whole carpet may be treated with the composition for the cleaning of carpets according to the present invention.
  • Surfactants may be present in the composition in an amount of, for example, 0.001 to 30% wt, ideally 0.01 to 15% wt and preferably 0.1 to 5% wt .
  • the surfactant is, for example, an anionic or nonionic surfactant or mixture thereof.
  • the nonionic surfactant is preferably a surfac- tant having a formula RO (CH 2 CH 2 O) nH wherein R is a mixture of linear, even carbon-number hydrocarbon chains ranging from Ci 2 H 2 S to Ci 6 H 33 and n represents the number of repeating units and is a number of from about 1 to about 12. Examples of other non-ionic surfactants in- elude higher aliphatic primary alcohol containing about twelve to about 16 carbon atoms which are condensed with about three to thirteen moles of ethylene oxide.
  • nonionic surfactants include primary alcohol ethoxylates (available under the Neodol tradename from Shell Co.), such as Cu alkanol condensed with 9 moles of ethylene oxide (Neodol 1-9) , Ci 2 -I 3 alkanol condensed with 6.5 moles ethylene oxide (Neodol 23-6.5), C i2 _ 13 alkanol with 9 moles of ethylene oxide (Neodol 23-9) , C 12 -i 5 alkanol condensed with 7 or 3 moles ethylene oxide (Neodol 25-7 or Neodol 25-3) , Ci 4 -I 3 alkanol condensed with 13 moles ethylene oxide (Neodol 45-13) , C 9 -n linear ethoxylated alcohol, averaging 2.5 moles of ethylene oxide per mole of alcohol (Neodol 91-2.5), and the like.
  • primary alcohol ethoxylates available under the Neo
  • nonionic surfactants include ethylene oxide condensate products of secondary aliphatic alcohols containing 11 to 18 carbon atoms in a straight or branched chain configuration condensed with 5 to 30 moles of ethylene oxide.
  • suitable non-ionic detergents of the foregoing type are Cn- I5 secondary alkanol condensed with either 9 moles of ethylene oxide (Tergitol 15-S-9) or 12 moles of ethylene oxide (Tergitol 15-S-12) marketed by Union Carbide.
  • linear primary alcohol ethoxylates are available under the Tomadol tradename such as, Tomadol 1- 7, a Cn linear primary alcohol ethoxylate with 7 moles EO; Tomadol 25-7, a C 12 -1 5 linear primary alcohol ethoxylate with 7 moles EO; Tomadol 45-7, a Ci 4 . 1S linear primary alcohol ethoxylate with 7 moles EO; and Tomadol 91-6, a C 9 - 11 linear alcohol ethoxylate with 6 moles EO.
  • nonionic surfactants are amine oxides, alkyl amide oxide surfactants.
  • surfactants which may be ⁇ sed are alkyl naphthalene sulfonates and oleoyl sarcosinates and mixtures thereof.
  • Suitable bleaches are oxygen bleaches.
  • Suitable level of oxygen bleaches is in the range from 0.01 to 90% wt.
  • active oxygen concentration refers to the percentage concentration of elemental oxy- gen, with an oxidation number zero, that being reduced to water would be stoichiometrically equivalent to a given percentage concentration of a given peroxide compound, when the peroxide functionality of the peroxide compound is completely reduced to oxides.
  • the active oxygen sources increase • the ability of the compositions to remove oxidisable stains, to destroy malodorous molecules and to kill germs.
  • the concentration of available oxygen can be determined by methods known in the art, such as the iodimetric method, the permanganometric method and the cerimetric method. Said methods and the criteria for the choice of the appropriate method are described for example in "Hydrogen Peroxide", W. C. Schumo, C. N. Satterfield and R. L. Wentworth, Reinhold Publishing Corporation, New York, 1955 and "Organic Peroxides” , Daniel Swern, Editor Wiley Int. Science, 1970.
  • Suitable organic and inorganic peroxides for use in the compositions according to the present invention include diacyl and dialkyl peroxides such as dibenzoyl peroxide, dilauroyl peroxide, dicumyl peroxide, persulphuric acid and mixtures thereof .
  • Such polymers include the polycarboxylates containing two carboxy groups include the water-soluble salts of succinic acid, malonic acid, (ethylenedioxy) diacetic acid, maleic acid, diglycolic acid, tartaric acid, tartronic acid and fumaric acid, as well as the ether carboxylates and the sulfinyl carboxylates .
  • Polycarboxylate containing four carboxy groups include oxydisuccinates disclosed in GB-A-I, 261, 829, 1,1,2,2- ethane tetraca'rboxylates, 1,1,3,3 -propane tetracarboxy- lates and 1 , 1 , 2 , 3 -propane tetracarobyxlates .
  • Polycarboxylates contining sulfo substituents include the sulfo-
  • the preferred polycarboxylates are hydroxy- carboxylates containing up to three carboxy groups per molecule, more particularly citrates.
  • Suitable polymers include the water soluble monomeric polycarboxylates, or their acid forms, homo or copoly- meric polycarboxylic acids or their salts in which the polycarboxylic acid comprises at least two carboxylic radicals separated from each " other by not more than two carbon atoms, carbonates, bicarbonates, borates, phos- phates, and mixtures of any of thereof.
  • the carboxylate or polycarboxylate builder can be mono- meric or oligomeric in type although monomeric polycar- boxylates are generally preferred for reasons of cost and performance .
  • Suitable carboxylates containing one carboxy group include the water soluble salts of lactic acid, glycolic acid and ether derivatives thereof.
  • Polycarboxylates containing two carboxy groups include the water-soluble salts of succinic acid, malonic acid, (ethylenedioxy) di- acetic acid, maleic acid, diglycolic acid, tartaric acid, tartronic acid and fumaric acid, as well as the ether carboxylates and the sulfinyl carboxylates.
  • Polycarboxy- lates containing three carboxy groups include, in particular, water-soluble citrates, aconitrates and citra- conates as well as succinate derivates such as the car- boxymethloxysuccinates described in GB-A-I, 379, 241, lac- toxysuccinates described in GB-A-I, 389, 732, and aminosuc- cinates described in NL-A-7205873 , and the oxypolycar- boxylate materials such as 2-oxa-l, 1, 3 -propane tricar- boxylates described in GB-A-I, 387, 447.
  • succinate derivates such as the car- boxymethloxysuccinates described in GB-A-I, 379, 241, lac- toxysuccinates described in GB-A-I, 389, 732, and aminosuc- cinates described in NL-A-7205873 , and the
  • Polycarboxylate containing four carboxy groups include oxydisuccinates disclosed in GB-A-I, 261, 829, 1,1,2,2- ethane tetracarboxylates, 1, 1, 3 , 3 -propane tetracarboxy- lates and 1 , 1 , 2 , 3 -propane tetracarboxylates.
  • Polycar- boxylates contining sulfo suibstitu.ents include the sul- fosuccinate derivatives disclosed in GB-A-I, 398,421, GB- A-I, 398, 422 and US-A-3 , 936448, and the sulfonated pyrol- sed citrates described in GB-A-I, 439, 000.
  • Alicylic and heterocyclic polycarboxylates include cyclopentane-cis,cis,cis-tetracarboxylates, cyclopentadi- enide pentacarboxylates, 2, 3 , 4, 5, 6-hexane - hexacarboxy- lates and carboxymethyl derivates of polyhydric alcohols such as sorbitol, mannitol and xylitol.
  • Aromatic polycarboxylates include mellitic acid, pyromellitic acid and phthalic acid derivatives disclosed in GB-A-I, 425, 343.
  • the preferred polycarboxylates are hydroxy- carboxylates containing up to three carboxy groups per molecule, more particularly citrates.
  • More preferred polymers are homopolymers , copolymers and multiple polymers of acrylic, fluorinated acrylic, sul- fonated styrene, maleic anhydride, metacrylic, iso- butylene, styrene and ester monomers.
  • polymers examples include Acusol supplied from Rohm & Haas, Syntran supplied from Interpolymer and Versa and Alcosperse series supplied from Alco Chemical, a National Starch & Chemical Company.
  • the parent acids of the monomeric or oligomeric polycar- boxylate chelating agents or mixtures therefore with their salts, e.g. citric acid or citrate/citric acid mixtures are also contemplated as useful builder components.
  • builders are compounds that sequester metal ions associated with the hardness of water, e.g. calcium and magnesium, whereas chelating agents are com- pounds that sequester transition metal ions capable of catalysing the degradation of oxygen bleach systems.
  • certain compounds may have the ability to, do perform both functions.
  • Suitable chelating agents to be used herein include chelating agents selected from the group of phosphonate chelating agents, amino carboxylate chelating agents, poly- functionally-substituted aromatic chelating agents, and further chelating agents like glycine, salicylic acid, aspartic acid, glutamic acid, malonic acid, or mixtures thereof. Chelating agents when used, are typically present herein in amounts ranging from 0.01% to 50%wt of the total composition and preferably from 0.05% to 10%wt.
  • Suitable phosphonate chelating agents to be used herein may include ethydronic acid as well as amino phosphonate compounds, including amino alkylene poly (alkylene phosphonate) , alkali metal ethane 1-hydroxy diphosphonates, nitrilo trimethylene phosphonates, ethylene diamine tetra methylene phosphonates, and diethylene triamine penta methylene phosphonates .
  • the phosphonate compounds may be present either in their acid form or as salts of different cations on some or all of their acid functionalities.
  • Preferred phosphonate chelating agents to be used herein are diethylene triamine penta methylene phosphonates.
  • Such phosphonate chelating agents are commercially available from Monsanto under the trade name DEQUEST TM.
  • PolyfunctionalIy-substituted aromatic chelating agents may also be useful in the compositions herein. See U.S. patent 3,812,044.
  • Preferred compounds of this type in acid form are ' dihydroxydisulfobenzenes such as 1,2- dihydroxy -3 , 5-disulfobenzene.
  • a preferred biodegradable chelating agent for use herein is ethylene diamine N,N' -disu ⁇ cinic acid, or metal / am- monium salts thereof.
  • Ethylenediamine N, N' -disuccinic acids is, for instance, commercially available under the tradename ssEDDS TM from Palmer Research Laboratories .
  • Suitable amino carboxylates include ethylene diamine tetra acetates, diethylene triamine pentaacetates, di- ethylene triamine pentaacetate (DTPA) , N- hy- droxyethylethylenediamine triacetates, nitrilotri- acetates, ethylenediamine tetrapropionates, triethylene- tetraaminehexa-acetates, ethanol-diglycines, propylene diamine tetracetic acid (PDTA) MGDA, in their acid form, or in their alkali metal, ammonium, and substituted ammonium salt forms.
  • Particularly suitable amino carboxylates to be used herein are DTPA, propylene diamine tetracetic acid which is commercially available from BASP under the trade name Trilon FS TM.
  • Solvents can be used for present invention at levels of 0.01 to 30%wt, more preferred level is between 0.1 and 20%, more preferred between 0.1 and 10%.
  • the solvent constituent may include one or more alcohol, glycol, acetate, ether acetate, glycerol, polyethylene glycol with molecular weight ranging from 200 to 1000, silicones or glycol ethers.
  • Exemplary alcohols useful in the compositions of the invention include C 2 . 8 primary and secondary alcohols which may be straight chained or branched, preferably pentanol and hexanol .
  • Exemplary silicones useful in the compositions of the invention include cyclic silicones (cyclomethicones) like DC 244 Fluid, DC 245 Fluid, DC 246 Fluid, DC 344 Fluid; silicone polyether like DC 190 and DC 193.
  • Preferred solvents for the invention are glycol ethers and examples include those glycol ethers having the general structure.
  • Preferred solvents for the invention are glycol ethers and examples include those glycol ethers having the general structure Ra-O- [CH 2 -CH (R) - (CH 2 ) -O] n -H, wherein Ra is Ci- 2 o alkyl or alkenyl, or a cyclic alkane group of at least 6 carbon atoms, which may be fully or partially unsaturated or aromatic; n is an integer from 1 to 10, preferably from 1 to 5; each R is selected from H or CH 3 ; and a is the integer 0 or 1.
  • Specific and pre- ferred solvents are selected from propylene glycol methyl ether, dipropylene glycol methyl ether, tripropylene gly- . col methyl ether, propylene glycol n-propyl ether, ethylene glycol n-butyl ether, diethylene glycol n-butyl ether, diethylene glycol methyl ether, propylene glycol, ethylene glycol, isopropanol, ethanol , methanol, diethylene glycol monoethyl ether acetate, and particularly useful are, propylene glycol phenyl ether, ethylene glycol hexyl ether and diethylene glycol hexyl ether.
  • the composition may comprise an enzyme.
  • suitable enzymes are proteases, modified proteases stable in oxidisable conditions, amylases and lipases.
  • optional ingredients may be included. Suitable optional ingredients comprise optical bright- eners , fragrances, dyes.
  • a 30 x 30 cm carpet is used for the soil removal evaluation.
  • Soil is applied according to ASTM-D6540 methodol- ogy using the AATCC 123 artificial soil to obtain a ⁇ E value (soiled-virgin) of about 6.
  • the powder is left to act on the carpet for 5 minutes and then it is vacuumed by using the same vacuum cleaner with the suction on. 2 strokes were used to. remove the powder. In another testing, the powder is vacuumed by using the same vacuum cleaner with the suction on immediately after application. 2 strokes were used to work and vacuum the powder .
  • the cleaned carpet is read with a Minolta Chromameter CR- 400.
  • the soil removal % is obtained by the ratio between the ⁇ E (cleaned-soiled) and the ⁇ E (soiled-virgin) . The higher the soil removal % the better the cleaning efficacy of the formulation.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention concerne une composition en poudre exempte d'eau adaptée à une utilisation dans une opération de nettoyage de tapis, comprenant au moins 30 % en poids de composant de silice précipitée/fumée.
EP07732001A 2006-03-13 2007-03-12 Composition et procede Withdrawn EP1994131A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0605004A GB0605004D0 (en) 2006-03-13 2006-03-13 Composition and process
PCT/GB2007/000854 WO2007104955A1 (fr) 2006-03-13 2007-03-12 Composition et procede

Publications (1)

Publication Number Publication Date
EP1994131A1 true EP1994131A1 (fr) 2008-11-26

Family

ID=36241501

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07732001A Withdrawn EP1994131A1 (fr) 2006-03-13 2007-03-12 Composition et procede

Country Status (3)

Country Link
EP (1) EP1994131A1 (fr)
GB (1) GB0605004D0 (fr)
WO (1) WO2007104955A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0607493D0 (en) * 2006-04-13 2006-05-24 Reckitt Benckiser Nv Composition and process
US7922913B2 (en) 2008-02-21 2011-04-12 Rousseau Research, Inc. Removing oil from surface using dry amorphous silica product with inert carrier

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996149A (en) * 1971-09-27 1976-12-07 Burke Oliver W Jun Detergent compositions and detergent adjuvant combinations thereof, and processes for forming the same
FR2444700A1 (fr) * 1978-12-20 1980-07-18 Rhone Poulenc Ind Nouvel agent recurant non abrasif et composition lessivielle le renfermant
GB2109399A (en) * 1981-11-18 1983-06-02 Kent Chemical Company Limited Composition
GB8418566D0 (en) * 1984-07-20 1984-08-22 Unilever Plc Fabric cleaning compositions
DE3707409A1 (de) * 1987-03-07 1988-09-15 Henkel Kgaa Verfahren zur fleckentfernung von textilien
US6827792B2 (en) * 1999-06-25 2004-12-07 Strategic Environmental Solutions, Llc Liquid waste absorbing compositions

Non-Patent Citations (1)

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Title
See references of WO2007104955A1 *

Also Published As

Publication number Publication date
WO2007104955A1 (fr) 2007-09-20
GB0605004D0 (en) 2006-04-19

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