EP3190167B1 - Pilule amère - Google Patents

Pilule amère Download PDF

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Publication number
EP3190167B1
EP3190167B1 EP16150474.1A EP16150474A EP3190167B1 EP 3190167 B1 EP3190167 B1 EP 3190167B1 EP 16150474 A EP16150474 A EP 16150474A EP 3190167 B1 EP3190167 B1 EP 3190167B1
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EP
European Patent Office
Prior art keywords
particle
coated
sodium carbonate
sodium
surfactant
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EP16150474.1A
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German (de)
English (en)
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EP3190167A1 (fr
Inventor
David Victor Avila
Stephen Thomas Keningley
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Unilever PLC
Unilever NV
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Unilever PLC
Unilever NV
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Priority to TR2018/08208T priority Critical patent/TR201808208T4/tr
Priority to EP16150474.1A priority patent/EP3190167B1/fr
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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
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/32—Amides; Substituted amides
    • 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
    • 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
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates

Definitions

  • the present invention relates to a concentrated solid laundry detergent composition.
  • WO2014/026856 discloses a water-soluble packaging containing an agent and a water-soluble wrapping. Said water-soluble wrapping contains a bittering agent in a dilution of at least 1:250.
  • Bitrex® (Denatonium Benzoate) (CAS 3734-33-6 ) is the one of the bitterest substances known and is the leading branded safety ingredient used in a variety of domestic and industrial applications.
  • Denatonium Benzoate is supplied as a solid or in respective solutions of MEG, MPG ethanol and water.
  • Bitrex® in a near saturated sodium carbonate solution, within 10 wt% of sodium carbonate saturation, and spray the resulting solution on a large particle.
  • the nature of the large particle is such that the spray will adhere to the surface of the particle and the aqueous element substantially evaporated in a fluidized bed to provide a coated large particle.
  • the present invention provides a coated detergent particle with a core, the coated detergent particle having perpendicular dimensions x, y and z, wherein x is from 0.5 to 2 mm, y is from 2 to 8mm, and z is from 2 to 8 mm, the core comprising from 65 to 95 wt% of surfactant and adjuncts and coated with from 5 to 30 wt % of sodium carbonate and from 20 and 1000 ppm of denatonium benzoate, the coating applied as an aqueous solution spray and dried in a fluidized bed.
  • the amounts wt % and ppm amounts described apply to the coated detergent particle as a whole.
  • the coating applied as an aqueous solution spray and dried in the fluidized bed.
  • the coating is provided by spraying a sodium carbonate solution that is preferably from 80 to 100 percent, preferably 90 percent, of a saturated aqueous solution of sodium carbonate (as measured at 50 °C) and containing between 0.01 to 5 wt% of Bitrex solution.
  • a sodium carbonate solution that is preferably from 80 to 100 percent, preferably 90 percent, of a saturated aqueous solution of sodium carbonate (as measured at 50 °C) and containing between 0.01 to 5 wt% of Bitrex solution.
  • the level of denatonium benzoate is from 200 to 10000 ppm on a dry basis. All amounts as described herein are on an anhydrous basis.
  • the dry basis is the coating formulation after discounting any moisture that may or may not have been removed in process in particular the fluidised bed.
  • the particulate detergent composition is and sodium tripoly phosphate (STP) free.
  • STP sodium tripoly phosphate
  • wt % refer to the total percentage in the particle as dry weights.
  • the large particle is preferably curved.
  • the large particle may be shaped as a disc.
  • the large particle does not have hole; that is to say, the coated laundry detergent particle does not have a conduit passing there though that passes through the core, i.e., the coated detergent particle has a topologic genus of zero.
  • the large particle has perpendicular dimensions x, y and z, wherein x is from 0.5 to 2 mm, y is from 2 to 8 mm, and z is from 2 to 8 mm. After coating with sodium carbonate and drying in a fluidised bed the coated large particle has approximately the same dimensions as the uncoated large particle. It is more preferred that the large particle contains detergent and other actives.
  • the inorganic salt is present on the detergent particle as a coating and the surfactant is present as a core.
  • the inorganic coating reduces agglomeration and deterioration on storage.
  • the large particle before coating is preferable as described in any one of WO2013/139702 ; WO/2012/048950 ; WO/2012/048947 ; WO/2012/048949 WO/2012/048951 ; WO/2012/048948 ; WO/2012/049178 ; WO/2012/048926 ; WO/2012/048945 ; WO2013/149754 ; WO2013/149755 ; WO2013/149753 ; WO2013/149752 ; and, WO2014/048857 .
  • the large particle core is preferably a particulate detergent composition having perpendicular dimensions x, y and z, wherein x is from 0.5 to 2 mm, y is from 2 to 8 mm, and z is from 2 to 8 mm, wherein the particle comprises:
  • the large particle is then coated with (v) from 5 to 40 wt %, preferably 5 to 30 wt %, of sodium carbonate and from 20 to 1000 ppm of denatonium benzoate on a dry basis.
  • the large particle core is preferably a particulate detergent composition having perpendicular dimensions x, y and z, wherein x is from 0.5 to 2 mm, y is from 2 to 8 mm, and z is from 2 to 8 mm, wherein the particle comprises:
  • the large particle is then coated with (v) as described above
  • nonionic and anionic surfactants of the surfactant system may be chosen from the surfactants described " Surface Active Agents” Vol. 1, by Schwartz & Perry, Interscience 1949 , Vol. 2 by Schwartz, Perry & Berch, Interscience 1958 , in the current edition of "McCutcheon's Emulsifiers and Detergents” published by Manufacturing Confectioners Company or in " Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981 .
  • the surfactants used are saturated.
  • Suitable anionic detergent compounds which may be used are usually water-soluble alkali metal salts of organic sulphates and sulphonates having alkyl radicals containing from about 8 to about 22 carbon atoms, the term alkyl being used to include the alkyl portion of higher acyl radicals.
  • suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher C 8 to C 18 alcohols, produced for example from tallow or coconut oil, sodium and potassium alkyl C 9 to C 20 benzene sulphonates, particularly sodium linear secondary alkyl C 10 to C 15 benzene sulphonates; and sodium alkyl glyceryl ether sulphates, especially those ethers of the higher alcohols derived from tallow or coconut oil and synthetic alcohols derived from petroleum.
  • anionic surfactants are sodium lauryl ether sulfate (SLES), particularly preferred with 1 to 3 ethoxy groups, sodium C 10 to C 15 alkyl benzene sulphonates and sodium C 12 to C 18 alkyl sulphates. Also applicable are surfactants such as those described in EP-A-328 177 (Unilever), which show resistance to salting-out, the alkyl polyglycoside surfactants described in EP-A-070 074 , and alkyl monoglycosides. The chains of the surfactants may be branched or linear.
  • the fatty acid soap used preferably contains from about 16 to about 22 carbon atoms, preferably in a straight chain configuration.
  • the anionic contribution from soap is preferably from 0 to 30 wt % of the total anionic.
  • At least 50 wt % of the anionic surfactant is selected from: sodium C 11 to C 15 alkyl benzene sulphonates; and, sodium C 12 to C 18 alkyl sulphates. Even more preferably, the anionic surfactant is sodium C 11 to C 15 alkyl benzene sulphonates.
  • Suitable nonionic detergent compounds which may be used include, in particular, the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example, aliphatic alcohols, acids, amides or alkyl phenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide.
  • Preferred nonionic detergent compounds are C 6 to C 22 alkyl phenol-ethylene oxide condensates, generally 5 to 25 EO, i.e. 5 to 25 units of ethylene oxide per molecule, and the condensation products of aliphatic C 8 to C 18 primary or secondary linear or branched alcohols with ethylene oxide, generally 5 to 50 EO.
  • the non-ionic is 10 to 50 EO, more preferably 20 to 35 EO.
  • Alkyl ethoxylates are particularly preferred.
  • Cationic surfactant may be present as minor ingredients at levels preferably between 0 to 5 wt % on total surfactant.
  • surfactants are mixed together before being dried. Conventional mixing equipment may be used.
  • the surfactant core of the laundry detergent particle may be formed by extrusion or roller compaction and subsequently coated with an inorganic salt.
  • the surfactant system used is calcium tolerant and this is a preferred aspect because this reduces the need for builder.
  • Surfactant blends that do not require builders to be present for effective detergency in hard water are preferred. Such blends are called calcium tolerant surfactant blends if they pass the test set out hereinafter. However, the invention may also be of use for washing with soft water, either naturally occurring or made using a water softener. In this case, calcium tolerance is no longer important and blends other than calcium tolerant ones may be used.
  • the surfactant blend in question is prepared at a concentration of 0.7 g surfactant solids per litre of water containing sufficient calcium ions to give a French hardness of 40 (4 x 10 -3 Molar Ca 2+ ).
  • Other hardness ion free electrolytes such as sodium chloride, sodium sulphate, and sodium hydroxide are added to the solution to adjust the ionic strength to 0.05M and the pH to 10.
  • the adsorption of light of wavelength 540 nm through 4 mm of sample is measured 15 minutes after sample preparation. Ten measurements are made and an average value is calculated. Samples that give an absorption value of less than 0.08 are deemed to be calcium tolerant.
  • Suitable calcium tolerant co-surfactants include SLES 1-7EO, and alkyl-ethoxylate nonionic surfactants, particularly those with melting points less than 40°C.
  • a LAS/SLES surfactant blend has a superior foam profile to a LAS nonionic surfactant blend and is therefore preferred for hand washing formulations requiring high levels of foam.
  • SLES may be used at levels of up to 30 wt % of the surfactant blend.
  • the particulate detergent composition when dissolved in an aqueous medium is alkaline.
  • this alkaline solution there are sodium ions present and whilst there may not be any sodium citrate in the particulate detergent composition upon dissolution sodium citrate is generated in solution. It is preferred that sodium citrate is present in the particulate detergent composition.
  • Phosphonate sequestrants are commercially available. Commercially available DequestTM phosphonate sequestrants are particularly preferred.
  • Phosphonate sequestrants (Dequest® 2010) 1-Hydroxyethylidene -1,1,-diphosphonic acid, (Dequest® 2066) Diethylenetriamine penta(methylene phosphonic acid), (Dequest® 7000) 2-Phosphonobutane - 1,2,4 - tricarboxylic acid, (Dequest® 2066C2) Diethylenetriamine penta(methylene phosphonic acid), Dequest® 2047 ([ethylenebis[nitrilobis(methylene)]] tetrakisphosphonic acid, calcium sodium salt), Dequest® 2016 (1-Hydroxyethylene-1,1,-diphsophonic acid sodium salt, Na4HEDP). Dequest® 2016 and Dequest® 2047 are particularly preferred.
  • Soil release polymers improve the main wash performance of the compositions when used in the low in wash surfactant process of the present invention.
  • One preferred class of polymer is the fabric-substantive polymers comprising at least one of (i) saccharide or (ii) dicarboxylic acid and polyol monomer units. Typically these have soil release properties and while they can have a primary detergency effect they generally assist in subsequent cleaning.
  • the soil release polymers for polyester will comprise polymers of aromatic dicarboxylic acids and alkylene glycols (including polymers containing polyalkylene glycols).
  • the polymeric soil release agents useful herein especially include those soil release agents having:
  • the polyoxyethylene segments of (a)(i) will have a degree of polymerization of from about 200, although higher levels can be used, preferably from 3 to about 150, more preferably from 6 to about 100.
  • Suitable oxy C 4 -C 6 alkylene hydrophobic segments include, but are not limited to, end-caps of polymeric soil release agents such as MO 3 S(CH 2 ) n OCH 2 CH 2 O--, where M is sodium and n is an integer from 4-6, as disclosed in U.S. Pat. No. 4,721,580, issued Jan. 26, 1988 to Gosselink.
  • Soil release agents characterized by poly(vinyl ester) hydrophobic segments include graft copolymers of poly(vinyl ester), e.g., C 1 -C 6 vinyl esters, preferably poly(vinyl acetate) grafted onto polyalkylene oxide backbones, such as polyethylene oxide backbones.
  • poly(vinyl ester) e.g., C 1 -C 6 vinyl esters
  • poly(vinyl acetate) grafted onto polyalkylene oxide backbones such as polyethylene oxide backbones.
  • Commercially available soil release agents of this kind include the SOKALAN type of material, e.g., SOKALAN HP-22, available from BASF (West Germany).
  • One type of preferred soil release agent is a copolymer having random blocks of ethylene terephthalate and polyethylene oxide (PEO) terephthalate.
  • the molecular weight of this polymeric soil release agent is in the range of from about 25,000 to about 55,000. See U.S. Pat. No. 3,959,230 to Hays, issued May 25, 1976 and U.S. Pat. No. 3,893,929 to Basadur issued Jul. 8, 1975 .
  • Another preferred polymeric soil release agent is a polyester with repeat units of ethylene terephthalate units contains 10 to 15 wt% of ethylene terephthalate units together with 90 to 80 wt% weight of polyoxyethylene terephthalate units, derived from a polyoxyethylene glycol of average molecular weight 300-5,000.
  • this polymer include the commercially available material ZELCON 5126 (from DuPont) and MILEASE T (from ICI). See also U.S. Pat. No. 4,702,857, issued Oct. 27, 1987 to Gosselink .
  • Another preferred polymeric soil release agent is a sulphonated product of a substantially linear ester oligomer comprised of an oligomeric ester backbone of terephthaloyl and oxyalkyleneoxy repeat units and terminal moieties covalently attached to the backbone.
  • These soil release agents are described fully in U.S. Pat. No. 4,968,451, issued Nov. 6, 1990 to J.J. Scheibel and E. P. Gosselink .
  • Other suitable polymeric soil release agents include the terephthalate polyesters of U.S. Pat. No. 4,711,730, issued Dec. 8, 1987 to Gosselink et al , the anionic end-capped oligomeric esters of U.S. Pat. No. 4,721,580, issued Jan. 26, 1988 to Gosselink , and the block polyester oligomeric compounds of U.S. Pat. No. 4,702,857, issued Oct. 27, 1987 to Gosselink .
  • Preferred polymeric soil release agents also include the soil release agents of U.S. Pat. No. 4,877,896, issued Oct. 31, 1989 to Maldonado et al , which discloses anionic, especially sulfoarolyl, end-capped terephthalate esters.
  • Still another preferred soil release agent is an oligomer with repeat units of terephthaloyl units, sulfoisoterephthaloyl units, oxyethyleneoxy and oxy-1,2-propylene units.
  • the repeat units form the backbone of the oligomer and are preferably terminated with modified isethionate end-caps.
  • a particularly preferred soil release agent of this type comprises about one sulfoisophthaloyl unit, 5 terephthaloyl units, oxyethyleneoxy and oxy-1,2-propyleneoxy units in a ratio of from about 1.7 to about 1.8, and two end-cap units of sodium 2-(2-hydroxyethoxy)-ethanesulphonate.
  • Said soil release agent also comprises from about 0.5% to about 20%, by weight of the oligomer, of a crystalline-reducing stabilizer, preferably selected from the group consisting of xylene sulfonate, cumene sulfonate, toluene sulfonate, and mixtures thereof.
  • a crystalline-reducing stabilizer preferably selected from the group consisting of xylene sulfonate, cumene sulfonate, toluene sulfonate, and mixtures thereof.
  • the most preferred soil release polymers are the water soluble/miscible or dispersible polyesters such as: linear polyesters sold under the Repel-O-Tex brand by Rhodia (Gerol), or the Texcare brand by Clariant, especially Texcare SRN170, and heavily branched polyesters such as those available from Sasol and described in US 7119056 .
  • the polyesters are preferably nonionic and comprise a mid block of spaced apart terephthalate repeat units and at least one end block based on polyethylene glycol with a lower alkyl or hydrogen termination.
  • the amount of coating should lay in the range 1 to 40 wt% of the particle, preferably 4 to 30 wt%, more preferably 5 to 25 wt% for the best results in terms of anti-caking properties of the detergent particles.
  • the coating is preferably applied to the surface of the surfactant core, by deposition from an aqueous solution of the water soluble inorganic salt.
  • an aqueous solution of the water soluble inorganic salt can be performed using a slurry.
  • the aqueous solution preferably contains greater than 50g/L, more preferably 200 g/L of the salt.
  • An aqueous spray-on of the coating solution in a fluidised bed has been found to give good results and may also generate a slight rounding of the detergent particles during the fluidisation process. Drying and/or cooling may be needed to finish the process.
  • the coated laundry detergent particle is the coated laundry detergent particle
  • the coated laundry detergent particle comprises from 10 to 100 wt %, more preferably 50 to 100 wt %, even more preferably 80 to 100 wt %, most preferably 90 to 100 wt % of a laundry detergent formulation in a package.
  • the package is that of a commercial formulation for sale to the general public and is preferably in the range of 0.01 kg to 5 kg, preferably 0.02 kg to 2 kg, most preferably 0.5 kg to 2 kg.
  • the coated laundry detergent particle is such that at least 90 to 100 % of the coated laundry detergent particles in the in the x, y and z dimensions are within a 20 %, preferably 10%, variable from the largest to the smallest coated laundry detergent particle.
  • the particle preferably comprises from 0 to 15 wt % water, more preferably 0 to 10 wt %, most preferably from 1 to 5 wt % water, at 293K and 50% relative humidity. This facilitates the storage stability of the particle and its mechanical properties.
  • adjuncts as described herein may be present in the coating.
  • the coated laundry detergent particle preferably comprises a fluorescent agent (optical brightener).
  • fluorescent agents are well known and many such fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • the total amount of the fluorescent agent or agents used in the composition is generally from 0.005 to 2 wt %, more preferably 0.01 to 0.1 wt %. Suitable Fluorescer for use in the invention are described in chapter 7 of Industrial Dyes edited by K.Hunger 2003 Wiley-VCH ISBN 3-527-30426-6 .
  • Preferred fluorescers are selected from the classes distyrylbiphenyls, triazinylaminostilbenes, bis(1,2,3-triazol-2-yl)stilbenes, bis(benzo[b]furan-2-yl)biphenyls, 1,3-diphenyl-2-pyrazolines and courmarins.
  • the fluorescer is preferably sulfonated.
  • Preferred classes of fluorescer are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g. Tinopal DMS pure Xtra and Blankophor (Trade Mark) HRH, and Pyrazoline compounds, e.g. Blankophor SN.
  • Di-styryl biphenyl compounds e.g. Tinopal (Trade Mark) CBS-X
  • Di-amine stilbene di-sulphonic acid compounds e.g. Tinopal DMS pure Xtra and Blankophor (Trade Mark) HRH
  • Pyrazoline compounds e.g. Blankophor SN.
  • Preferred fluorescers are: sodium 2 (4-styryl-3-sulfophenyl)-2H-napthol[1,2-d]triazole, disodium 4,4'-bis ⁇ [(4-anilino-6-(N methyl-N-2 hydroxyethyl) amino 1,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino-1,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate, and disodium 4,4'-bis(2-sulfostyryl)biphenyl.
  • Tinopal® DMS is the disodium salt of disodium 4,4'-bis ⁇ [(4-anilino-6-morpholino-1,3,5-triazin-2-yl)]amino ⁇ stilbene-2-2' disulfonate.
  • Tinopal® CBS is the disodium salt of disodium 4,4'-bis(2-sulfostyryl)biphenyl.
  • the composition comprises a perfume.
  • the perfume is preferably in the range from 0.001 to 3 wt %, most preferably 0.1 to 1 wt %.
  • CTFA Cosmetic, Toiletry and Fragrance Association
  • compositions of the present invention it is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components.
  • top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955 ]).
  • Preferred top-notes are selected from citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol.
  • the composition may comprise one or more further polymers.
  • further polymers are carboxymethylcellulose, poly (ethylene glycol), poly(vinyl alcohol), polyethylene imines, ethoxylated polyethylene imines, water soluble polyester polymers polycarboxylates such as polyacrylates, maleic/acrylic acid copolymers and lauryl methacrylate/acrylic acid copolymers.
  • One or more enzymes are preferred present in a composition of the invention.
  • the level of each enzyme is from 0.0001 wt% to 0.5 wt% protein on product.
  • enzymes include proteases, alpha-amylases, cellulases, lipases, peroxidases/oxidases, pectate lyases, and mannanases, or mixtures thereof.
  • Suitable lipases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful lipases include lipases from Humicola (synonym Thermomyces ), e.g. from H. lanuginosa ( T. lanuginosus ) as described in EP 258 068 and EP 305 216 or from H. insolens as described in WO 96/13580 , a Pseudomonas lipase, e.g. from P. alcaligenes or P. pseudoalcaligenes ( EP 218 272 ), P. cepacia ( EP 331 376 ), P. stutzeri ( GB 1,372,034 ), P.
  • lipase variants such as those described in WO 92/05249 , WO 94/01541 , EP 407 225 , EP 260 105 , WO 95/35381 , WO 96/00292 , WO 95/30744 , WO 94/25578 , WO 95/14783 , WO 95/22615 , WO 97/04079 and WO 97/07202 , WO 00/60063 , WO 09/107091 and WO09/111258 .
  • LipolaseTM and Lipolase UltraTM LipexTM (Novozymes A/S) and LipocleanTM.
  • the method of the invention may be carried out in the presence of phospholipase classified as EC 3.1.1.4 and/or EC 3.1.1.32.
  • phospholipase is an enzyme which has activity towards phospholipids.
  • Phospholipids such as lecithin or phosphatidylcholine, consist of glycerol esterified with two fatty acids in an outer (sn-1) and the middle (sn-2) positions and esterified with phosphoric acid in the third position; the phosphoric acid, in turn, may be esterified to an amino-alcohol.
  • Phospholipases are enzymes which participate in the hydrolysis of phospholipids.
  • phospholipases A 1 and A 2 which hydrolyze one fatty acyl group (in the sn-1 and sn-2 position, respectively) to form lysophospholipid
  • lysophospholipase or phospholipase B
  • Phospholipase C and phospholipase D release diacyl glycerol or phosphatidic acid respectively.
  • proteases include those of animal, vegetable or microbial origin. Microbial origin is preferred. Chemically modified or protein engineered mutants are included.
  • the protease may be a serine protease or a metallo protease, preferably an alkaline microbial protease or a trypsin-like protease.
  • Preferred commercially available protease enzymes include AlcalaseTM, SavinaseTM, PrimaseTM, DuralaseTM, DyrazymTM, EsperaseTM, EverlaseTM, PolarzymeTM, and KannaseTM, (Novozymes A/S), MaxataseTM, MaxacalTM, MaxapemTM, ProperaseTM, PurafectTM, Purafect OxPTM, FN2TM, and FN3TM (Genencor International Inc.).
  • the method of the invention may be carried out in the presence of cutinase, classified in EC 3.1.1.74.
  • the cutinase used according to the invention may be of any origin.
  • cutinases are of microbial origin, in particular of bacterial, of fungal or of yeast origin.
  • Suitable amylases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Amylases include, for example, alpha-amylases obtained from Bacillus, e.g. a special strain of B . licheniformis, described in more detail in GB 1,296,839 , or the Bacillus sp. strains disclosed in WO 95/026397 or WO 00/060060 .
  • amylases are DuramylTM, TermamylTM, Termamyl UltraTM, NatalaseTM, StainzymeTM, FungamylTM and BANTM (Novozymes A/S), RapidaseTM and PurastarTM (from Genencor International Inc.).
  • Suitable cellulases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Suitable cellulases include cellulases from the genera Bacillus, Pseudomonas, Humicola, Fusarium, Thielavia, Acremonium, e.g. the fungal cellulases produced from Humicola insolens, Thielavia terrestris, Myceliophthora thermophila, and Fusarium oxysporum disclosed in US 4,435,307 , US 5,648,263 , US 5,691,178 , US 5,776,757 , WO 89/09259 , WO 96/029397 , and WO 98/012307 .
  • cellulases include CelluzymeTM, CarezymeTM, EndolaseTM, RenozymeTM (Novozymes A/S), ClazinaseTM and Puradax HATM (Genencor International Inc.), and KAC-500(B)TM (Kao Corporation).
  • Suitable peroxidases/oxidases include those of plant, bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Examples of useful peroxidases include peroxidases from Coprinus, e.g. from C . cinereus, and variants thereof as those described in WO 93/24618 , WO 95/10602 , and WO 98/15257 . Commercially available peroxidases include GuardzymeTM and NovozymTM 51004 (Novozymes A/S).
  • composition of the invention serves to boost enzyme cleaning.
  • proteases e.g., SavinaseTM
  • lipases e.g., LipexTM
  • the boosting of the enzyme efficacy is ascribed to the high citrate, sequestrate levels.
  • Any enzyme present in the composition may be stabilized using conventional stabilizing agents, e.g., a polyol such as propylene glycol or glycerol, a sugar or sugar alcohol, lactic acid, boric acid, or a boric acid derivative, e.g., an aromatic borate ester, or a phenyl boronic acid derivative such as 4-formylphenyl boronic acid, and the composition may be formulated as described in e.g. WO 92/19709 and WO 92/19708 .
  • a polyol such as propylene glycol or glycerol
  • a sugar or sugar alcohol lactic acid, boric acid, or a boric acid derivative, e.g., an aromatic borate ester, or a phenyl boronic acid derivative such as 4-formylphenyl boronic acid
  • alkyl groups are sufficiently long to form branched or cyclic chains, the alkyl groups encompass branched, cyclic and linear alkyl chains.
  • the alkyl groups are preferably linear or branched, most preferably linear.
  • Sequesterant may be present in the coated laundry detergent particles.
  • Trial 1 (g) Trial 2 (g) Trial 3 (g) NaLAS 209 20.9 20.9 Non-ionic surfactant-C12-C15-alkyl ethoxylate 30 EO 37 37 37 CP5 (sodium salt of an acrylic acid maleic acid copolymer) 30 30 30 Phosphonate Sequestrant 55 55 55 Citric Acid 246 246 246 Enzymes 30 30 30 Soil release polymer 20 20 20 Silicon Antifoam 5 5 5 5 Sodium carbonate 358 358 358 Fragrance 11 11 11 Bitrex 0.1 0.5 1 TOTAL 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000
  • the Bitrex was added to the fragrance, mixed for 10 minutes and the combination sprayed onto the remaining product. In all cases the spray nozzle blocked before the fragrance addition was complete.
  • the base particle was added into the Glatt Fluid Bed coater.
  • the Bitrex was added to the concentrated sodium carbonate solution.
  • the following conditions were used for the coating Air Inlet temperature 80°C Bed Temperature 45°C Sodium Carbonate spray temperature 50°C Air Flow rate 2.5 m/s
  • the spray nozzle was not blocked by the Bitrex concentrated sodium carbonate solution.
  • the fragrance oil was added to the coated product as a spray.

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  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
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  • Detergent Compositions (AREA)

Claims (8)

  1. Particule de détergent revêtue avec un noyau, la particule de détergent revêtue ayant des dimensions perpendiculaires x, y et z, où x est de 0,5 à 2 mm, y est de 2 à 8 mm, et z est de 2 à 8 mm, le noyau comprenant de 65 à 95 % en masse de tensioactif et d'auxiliaires et revêtu avec de 5 à 30 % en masse de carbonate de sodium et de 20 à 1 000 ppm de benzoate de denatonium, le revêtement appliqué comme une pulvérisation de solution aqueuse et séché dans un lit fluidisé.
  2. Particule de détergent revêtue selon la revendication 1, où le noyau est une composition de détergent particulaire ayant des dimensions perpendiculaires x, y et z, où x est de 0,5 à 2 mm, y est de 2 à 8 mm, et z est de 2 à 8 mm, où la particule comprend :
    (i) de 20 à 39 % en masse, de préférence de 23 à 35 % en masse, encore mieux de 26 à 32 % en masse, d'un tensioactif choisi parmi : des tensioactifs anioniques et non-ioniques ;
    (ii) de 15 à 40 % en masse, de préférence de 20 à 35 % en masse, encore mieux de 25 à 30 % en masse, d'un actif choisi parmi : l'acide citrique et des sels de sodium de celui-ci ;
    (iii) de 2 à 8 % en masse, de préférence de 3 à 6 % en masse, d'un séquestrant de phosphonate ; et,
    (iv) de 0 à 3 % en masse, de préférence de 1 à 2,5 % en masse, d'un polymère éliminant la saleté.
  3. Particule de détergent revêtue selon la revendication 1, où le noyau est une composition de détergent particulaire ayant des dimensions perpendiculaires x, y et z, où x est de 0,5 à 2 mm, y est de 2 à 8 mm, et z est de 2 à 8 mm, où la particule comprend de 20 à 39 % en masse d'un tensioactif choisi parmi : des tensioactifs anioniques et non-ioniques.
  4. Particule de détergent revêtue selon la revendication 1 ou 2, où la teneur totale en benzoate de denatonium dans la particule de détergent revêtue se trouve dans l'intervalle de 20 à 1 000 ppm dont de 80 à 100 % en masse se trouvent dans le revêtement de carbonate de sodium.
  5. Particule de détergent revêtue selon la revendication 1 ou 2, où le sel inorganique comprend du carbonate de sodium dans l'intervalle de 10 à 100 % de carbonate de sodium.
  6. Particule de détergent revêtue selon l'une quelconque des revendications précédentes, où la particule comprend de 0 à 15 % en masse d'eau.
  7. Composition de particule de détergent revêtue selon la revendication 6, où la particule comprend de 1 à 5 % en masse d'eau.
  8. Particule de détergent revêtue selon l'une quelconque des revendications précédentes, où le revêtement est appliqué comme une solution de carbonate de sodium qui est de 80 à 100 pourcents d'une solution aqueuse saturée de carbonate de sodium, comme mesuré à 50°C, et contenant de 0,01 à 5 % en masse de benzoate de denatonium en solution.
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