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
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
  • C11D3/38627—Preparations containing enzymes, e.g. protease or amylase containing lipase
• • 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
  • C11D3/50—Perfumes
  • C11D3/502—Protected perfumes
  • C11D3/505—Protected perfumes encapsulated or adsorbed on a carrier, e.g. zeolite or clay

Definitions

• the lipase enzyme incorporated into the detergent compositions of the present invention is generally present in an amount of 10 to 20000 LU/g of the detergent composition, or even 100 to 10000 LU/g.
• the LU unit for lipase activity is defined in WO99/42566.
• the lipase dosage in the wash solution is typically from 0.02 to 2 mg/l enzyme, more typically from 0.1 to 2mg/l as enzyme protein.
• the lipase enzyme may be incorporated into the detergent composition in any convenient form, generally in the form of a non-dusting granulate, a stabilised liquid or a coated enzyme particle. Alternatively a slurry may be suitable.
• the at least partially water soluble hydroxylic compounds useful herein are preferably selected from carbohydrates, which can be any or mixture of: i) simple sugars (or mono-saccharides); ii) oligosaccharides (defined as carbohydrate chains consisting of 2-10 monosaccharide molecules); iii) polysaccharides (defined as carbohydrate chains consisting of at least 11, or more usually at least 35 monosaccharide molecules); and iv) starches.
• Modified starches suitable for use as the encapsulating matrix in the present invention include, hydrolyzed starch, acid thinned starch, starch esters of long chain hydrocarbons, starch acetates, starch octenyl succinate, and mixtures thereof.
• starch encapsulates of the present invention include but are not limited to, fluid bed agglomeration, extrusion, cooling/crystallization methods and the use of phase transfer catalysts to promote interfacial polyrnerization.
• lipase enzymes and particularly the high efficiency lipase enzymes essential for the present invention are problematic for perfume stability on storage and this means that the perfume fragrance detected by the consumer is not only reduced compared with the amount of perfume added into the detergent formulation but may also be adversely affected so that it is not the perfume selected by the perfumer.
• This problem is particularly noticeable by the consumer during the washing process and the inventors have found that not only do the encapsulated perfumes have a degree of protection on storage, but also surprisingly, the encapsulated perfumes appear to be chaperoned to the surface of the wash water by the encapsulate, providing maximum efficacy for the perfume raw materials used.
• the use of the encapsulated perfumes in combination with the specified lipases also provides a degree of protection from these particularly lipase-sensitive perfume raw materials.
• the perfume oil present in the encapsulated perfume particle comprises one or more perfume ingredient characterized by its boiling point (B.P.) and its octanol/water partition coefficient (P).
• the octanol/water partition coefficient of a perfume ingredient is the ratio between its equilibrium concentrations in octanol and in water.
• the preferred perfume ingredients of this invention have a B.P., determined at the normal, standard pressure of about 760 mm Hg, of about 260°C or lower, preferably less than about 255°C; and more preferably less than about 250°C, and an octanol/water partition coefficent P of about 1,000 or higher.
• the partition coefficients of the preferred perfume ingredients of this invention have high values, they are more conveniently given in the form of their logarithm to the base 10, logP.
• the preferred perfume ingredients of this invention have logP of at least 3, preferably more than 3.1, and even more preferably more than 3.2.
• perfume ingredients which are derived from natural or synthetic sources are composed of a multitude of components.
• orange terpenes contain about 90% to about 95% d-limonene, but also contain many other minor ingredients.
• each such material is used in the formulation of the perfume oils in the present invention, it is counted as one ingredient, for the purpose of defining the invention.
• the encapsulated perfume particles also may comprise perfume oil comprising esters derived from fatty acids having 1 to 7 carbon atoms.
• the detergent composition additionally comprises additional perfume oil, preferably at least 60 wt%, or at least 80 or 90 or substantially all the ester derived from fatty acid having from 1 to 7 carbon atoms will be present in the encapsulated perfume particles.
• said one or more perfume ingredients may be selected from the group consisting of a Schiff's base, ether, phenol, ketone, alcohol, ester, lactone, aldehyde, nitrile, natural oil or mixtures thereof. Schiff's base and nitriles may be least preferred.
• said one or more perfume ingredients may include Table 2 Perfume Ingredients or mixtures thereof or even Table 2 Perfume Ingredients 1 through 28 or mixtures thereof. It may be preferred for ketones and aldehydes to have a molecular weight of below 200 daltons.
• the perfume oil or composition comprises an ester perfume ingredient
• said ester perfume when said perfume oil or composition comprises an ester perfume component said ester perfume may have one or more of the following characteristics: branching or pendant rings in at least one of the alpha, beta or gamma positions; branching or pendant rings in at least one of the alpha or beta positions; or at least one tertiary carbon atom in the alpha position. While not being bound by theory, it is believed that the aforementioned perfume ester characteristics result in increased perfume ester stability, and thus perfume composition stability, when said perfume ester in is the presence of an enzyme that can hydrolyze ester bonds, for example, enzymes classed in EC 3.1.1. such as lipases.
• Perfume compositions of the present invention may be made by ad-mixing of perfume raw materials, which are typically liquids. Certain perfume raw materials are solid materials and can require gentle heat to homogenise with the rest of the perfume.
• the perfume blend can also comprise a significant proportion of a diluent (e.g dipropylene glycol), an antioxidant or a solubilising material. Solubilisers can be particularly advantageous where the surfactant level is low in order to disperse the perfume in a predominantly hydrophilic matrix such as aqueous liquid cleaners.
• any of the aforementioned aspects of the perfume compositions may be combined with other materials to produce any of the following delivery systems for delivering additional perfume oils into the detergent composition: spray-on perfume oils, sprayed directly onto detergent composition or components thereof, starch encapsulate delivery systems, porous carrier material delivery systems, coated porous carrier material delivery systems, microencapsulate delivery systems.
• detergent cornopositions of the invention will comprise encapsulates and spray-on perfume. Suitable methods of producing the aforementioned delivery systems may be found in one or more of the following U.S.
• the detergent compositions of the present invention are preferably those having an overall bulk density of from 350 to 1200 g/l, more preferably 450 to 1000g/l or even 500 to 900g/l.
• the detergent particles of the detergent composition in a granular form have a size average particle size of from 200 ⁇ m to 2000 ⁇ m, preferably from 350 ⁇ m to 600 ⁇ m.
• detergent compositions of the invention will be mixed with other detergent particles including combinations of agglomerates, spray-dried powders and/or dry added materials such as bleaching agents, enzymes etc.
• the conventional detergent ingredients are selected from typical detergent composition components such as detersive surfactants and detersive builders-
• the detergent ingredients can include one or more other detersive adjuncts or other materials for assisting or enhancing cleaning performance, treatment of the substrate to be cleaned, or to modify the aesthetics of the detergent composition.
• Usual detersive adjuncts of detergent compositions include the ingredients set forth in U.S. Pat. No. 3,936,537, Baskerville et al. and in Great Britain Patent Application No. 9705617.0, Trinh et al., published September 24, 1997.
• detergent compositions comprising the particles of the invention will comprise at least some of the usual detergent adjunct materials, such as agglomerates, extrudates, other spray dried particles having different composition to those of the invention, or dry added materials.
• detergent adjunct materials such as agglomerates, extrudates, other spray dried particles having different composition to those of the invention, or dry added materials.
• surfactants are incorporated into agglomerates, extrudates or spray dried particles along with solid materials, usually builders, and these may be admixed with the spray dried particles of the invention.
• some or all of the solid material may be replaced with the particles of the invention.
• the detergent adjunct materials are typically selected from the group consisting of detersive surfactants, builders, polymeric co-builders, bleach, chelants, enzymes, anti-redeposition polymers, soil-release polymers, polymeric soil-dispersing and/or soil-suspending agents, dye-transfer inhibitors, fabric-integrity agents, suds suppressors, fabric-softeners, flocculants, perfumes, whitening agents, photobleach and combinations thereof.
• the alkyl chain of the C 8-18 alkyl sulphates and/or C 8-18 alkyl sulphonates may be linear or branched, preferred branched alkyl chains comprise one or more branched moieties that are C 1-6 alkyl groups.
• Other preferred anionic surfactants are C 8-18 alkyl benzene sulphates and/or C 8-18 alkyl benzene sulphonates.
• the alkyl chain of the C 8-18 alkyl benzene sulphates and/or C 8-18 alkyl benzene sulphonates may be linear or branched, preferred branched alkyl chains comprise one or more branched moieties that are C 1-6 alkyl groups.
• Preferred cationic surfactants arc quaternary ammonium compounds.
• Preferred quaternary ammonium compounds comprise a mixture of long and short hydrocarbon chains, typically alkyl and/or hydroxyalkyl and/or alkoxylated alkyl chains.
• long hydrocarbon chains are C 8-18 alkyl chains and/or C 8-18 hydroxyalkyl chains and/or C 8-18 alkoxylated alkyl chains.
• short hydrocarbon chains are C 1-4 alky chains and/or C 1-4 hydroxyabcyl chains and/or C 1-4 alkoxylated alkyl chains.
• the detergent composition comprises (by weight of the composition) from 0% to 20% cationic surfactant.
• Preferred zwitterionic surfactants comprise one or more quaternized nitrogen atoms and one or more moieties selected from the group consisting of: carbonate, phosphate, sulphate, sulphonate, and combinations thereof.
• Preferred zwitterionic surfactants are alkyl betaines.
• Other preferred zwitterionic surfactants are alkyl amine oxides.
• Catanionic surfactants which are complexes comprising a cationic surfactant and an anionic surfactant may also be included. Typically, the molar ratio of the cationic surfactant to anionic surfactant in the complex is greater than 1:1, so that the complex has a net positive charge.
• a preferred adjunct component is a bleaching agent.
• the detergent composition comprises one or more bleaching agents.
• the composition comprises (by weight of the composition) from 1% to 50% of one or more bleaching agent.
• Preferred bleaching agents are selected from the group consisting of sources of peroxide, sources of peracid, bleach boosters, bleach catalysts, photo-bleaches, and combinations thereof.
• Preferred sources of peroxide are selected from the group consisting of: perborate monohydrate, perborate tetra-hydrate, percarbonate, salts thereof, and combinations thereof.
• Preferred sources of peracid are selected from the group consisting of: bleach activator typically with a peroxide source such as perborate or percarbonate, preformed peracids, and combinations thereof.
• Preferred bleach activators are selected from the group consisting of: oxy-benzene-sulphonate bleach activators, lactam bleach activators, imide bleach activators, and combinations thereof.
• a preferred source of peracid is tetra-acetyl ethylene diamine (TAED)and peroxide source such as percarbonate.
• Preferred oxy-benzene-sulphonate bleach activators are selected from the group consisting of: nonanoyl-oxy-benzene-sulponate, 6-nonamido-caproyl-oxy-benzene-sulphonate, salts thereof, and combinations thereof.
• Preferred lactam bleach activators are acyl-caprolactams and/or acyl-valerolactams.
• a preferred imide bleach activator is N-nonanoyi-N-n-iethyl-acetamide.
• a preferred adjunct component is an anti-redeposition agent
• the detergent composition comprises one or more anti-redeposition agents.
• Preferred anti-redeposition agents are cellulosic polymeric components, most preferably carboxymethyl celluloses.
• a preferred adjunct component is a chelant.
• the detergent composition comprises one or more chelants.
• the detergent composition comprises (by weight of the composition) from 0.01% to 10% chelant.
• Preferred chelants are selected from the group consisting of: hydroxyethane-dimethylene-phosphonic acid, ethylene diamine tetra(methylene phosphonic) acid, diethylene triamine pentacetate, ethylene diamine tetraacetate, diethylene triamine penta(methyl phosphonic) acid, ethylene diamine disuccinic acid, and combinations thereof
• a preferred adjunct component is a dye transfer inhibitor.
• the detergent composition comprises one or more dye transfer inhibitors.
• dye transfer inhibitors are polymeric components that trap dye molecules and retain the dye molecules by suspending them in the wash liquor.
• Preferred dye transfer inhibitors are selected from the group consisting of: polyvinylpyrrolidon.es, polyvinylpyridine N-oxides, polyvinylpyrrolidone-polyvinylimidazole copolymers, and combinations thereof.
• Preferred adjunct components include other enzymes.
• the detergent composition comprises one or more additional enzymes.
• Preferred enzymes are selected from then group consisting of: amylases, arabinosidases, carbohydrases, cellulases, chondroitinases, cutinases, dextranases, esterases, ⁇ -glucanases, gluco-amylases, hyaluronidases, keratanases, laccase, ligninases, lipoxygenases, malanases, mannanases, oxidases, pectinases, pentosanases, peroxidases, phenoloxidases, phospholipases, proteases, pullulanases, reductases, tannases, transferases, xylanases, xyloglucanases, and combinations thereof.
• Preferred additional enzymes are selected from the group consisting of: amylases, carbohydrases, cellula
• the soil suspension agents represented by the above formula can be sulphated and/or sulphonated.
• the detergent compositions of the invention may comprise softening agents for softening through the wash such as clay optionally also with flocculant and enzymes.
• the aqueous wash liquor will comprise at least 100 ppm, or at least 500ppm of the detergent composition
• Example 1 Perfume Compositions Common Name CAS Composition 1 2 3 4 Yard Yara 93-04-9 5 Diphenyl Oxide 101-84-8 2 7 5 Iso Eugenol 120-11-6 6 Eugenol 97-53-0 4 5 Dynascone® 56973-85-4 1 1.5 Delta damascone 71048-82-3 2 4 Ionone Gamma Methyl 127-51-5 20 5 Nectaryl 95962-14-4 20 lonone alpha 127-41-3 4 Dartanol 28219-61-6 8 Levosandol® 28219-61-6 8 Hedione® 24851-98-7 25 40 Dihydro 37172-53-5 10 12 5 IsoJasmonate® Frutene 17511-60-3 25 Flor Acetate 2500-83-6 25 Amyl Salicylate 2050-08-0 20 Coumarin 91-64-5 4 Dupical 30168-23-1

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• Wood Science & Technology (AREA)
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• Dispersion Chemistry (AREA)
• Detergent Compositions (AREA)

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Cited By (16)

Citations (26)

• 2005
  • 2005-11-28 EP EP20050025877 patent/EP1661978B1/fr not_active Revoked

Patent Citations (28)

Non-Patent Citations (3)

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