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
  • C11D3/38645—Preparations containing enzymes, e.g. protease or amylase containing cellulase
• • 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
  • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
  • C11D3/3769—(Co)polymerised monomers containing nitrogen, e.g. carbonamides, nitriles or amines
  • C11D3/3776—Heterocyclic compounds, e.g. lactam

Definitions

• the present invention relates to a detergent composition.
• Detergent compositions ⁇ especially laundry detergents
• the functions have to be provided with a view to external considerations such as ease of use, formulation stability, and environmental considerations .
• liquid detergent composition comprising:
• PVP polyvinylpyrrolidone
• composition of the invention provides an excellent soil removal / suspension ability in a laundry washing operation. Without wishing to be limited by theory it is proposed that this effect arises due to a synergistic combination of the PVP and cellulase enzyme. Also the composition is unexpectedly advantageous in that it is readily biodegradable
• the invention is also directed (in a second aspect) to the use of the above-described compositions as a laundry detergent, detergent booster, stain treater, laundry detergent, etc.
• the use is particularly suited to the enhancement of soil suspending performance in a laundry washing operation.
• composition is free of polyacrylate polymer and / or carboxymethyl cellulose.
• composition is free of bleach and / or phos ⁇ phate based builders.
• composition comprises the cellulase enzyme in an amount of 0.1% to about 1% by weight, most preferably about 0.5% by weight.
• the cellulose enzyme comprises a cellulose enzyme supplied under the Trade Name Endolase ⁇ e.g. Endolase 5000L), (available from Novozymes) .
• the composition comprises the PVP in an amount of 0.1% to about 2% by weight, most preferably about 1.5% by- weight .
• the PVP has a molecular weight of about 40000.
• the PVP is supplied under the Trade Name Sokalan (e.g. Sokalan HP53) , ⁇ available from BASF).
• compositions suitable for use in the compositions include protease and amylase enzymes.
• the proteolytic enzymes suitable for the present compositions include the various commercial liquid enzyme preparations which have been adapted for use in association with detergent compositions. Enzyme preparations in powdered form are also useful although, as a general rule, less convenient for incorporation into liquid compositions. Suitable liquid enzyme preparations include "Alcalase”, “Savinase”, “Liquanase” and “Esperase”, all trademarked products sold by Novo Industries, Copenhagen, Denmark, and "Maxatase", “Maxacal”, “Purafect Prime” and “AZ-Protease” and “Properase” sold by Gist-Brocades, Delft, The Netherlands.
• alpha-amylase liquid enzyme preparations are those sold by Novo Industries and Gist-Brocades under the tradenames "Stainzyme”, “Termamyl” and “Maxamyl”, respectively .
• Mixtures of proteolytic and amylase enzymes can and often are used to assist in removal of different types of stains.
• the proteolytic enzyme and/or amylase enzyme will normally be present in the compositions in an effective amount in the range of from about 0.05% to about 5%, preferably from about 0.5% to about 2%, by weight of the composition. Generally, lower levels of amylase are required.
• a salt of the hydroxycarboxylic acid such as sodium citrate which is preferred because of its ready availability and contribution to improving physical to improving the physical stability of the composition - i.e., preventing phase separation, as well as providing efficacy against oxidizable stains, e.g., coffee and wine stains.
• hydroxycarboxylic acids such as malic acid, tartaric acid, isocitric acid or tri-hydroxyglutaric acid.
• the preferred sodium citrate is conveniently used in the form of its dihydrate .
• citric acid itself may be used in formulating the compositions.
• the hydroxydi- or hydroxytri-carboxylic acid will be present in its ionized salt state.
• This ingredient is used in an amount ranging of about 5% to about 20% of the entire enzyme-containing composition, preferably amounts of from 8% to 15%, and more preferably in amounts of from 10% to 13%.
• An alkali metal chloride preferably calcium chloride. This ingredient is used in an amount of from about 2% to ab ⁇ uL 15% based ⁇ ii the weiyliL u£ Lhe enLiie enzyme- containing composition, preferably, the chloride ingredient is used in amounts ranging from 4% to 12%, and more preferably from 5% to 8%.
• the composition contains from about 10% to about 20% of a nonionic surfactant.
• nonionic surfactants include Cs-Cis alcohol alkoxylated with 5 to 7moles of ethylene oxide.
• alkoxylated fatty alcohols are known to the art and these vary considerably in HLB ⁇ hydrophile-lipophile balance) .
• an alkoxylated alcohol which is relatively hydrophobic.
• Preferred surfactants are fatty alcohols having from about 8 about 15 carbon atoms, alkoxylated with about 5 to 7 moles of ethylene oxide.
• a particularly preferred surfactant is that sold under the trademark Lialet 125 and has a formulation of C 12 -C 15 alcohols alkoxylated with 7 moles of ethylene oxide.
• the composition contains from about 10% to about 20% of an anionic surfactant.
• anionic surfactants include straight-chained or branched alkyl sulfates and alkyl polyalkoxylated sulfates, also known as alkyl ether sulfates. Such surfactants may be produced by the sulfation of higher C 8 -C 20 fatty alcohols.
• R is a linear C 8 -C 2 O hydrocarbyl group and M is a water-solubilising cation.
• R is Ci 0 -C 16 alkyl, for example C 12 -C 14
• M is alkali metal such as lithium, sodium or potassium.
• secondary alkyl sulfate surfactants are those which have the sulfate moiety on a "backbone" of the molecule, for example those of formula:
• n and n are independently 2 or more, the sum of m+n typically being 6 to 20, for example 9 to 15, and M is a water-solubilising cation such as lithium, sodium or potassium.
• Especially preferred secondary alkyl sulfates are the (2,3) alkyl sulfate surfactants of formulae:
• x is at least 4, for example 6 to 20, preferably 10 to 16.
• M is cation, such as an alkali metal, for example lithium, sodium or potassium.
• alkoxylated alkyl sulfates are ethoxylated alkyl sulfates of the formula:
• R is a Cs-C 2 O alkyl group, preferably Cio-Ci ⁇ such as a Ci 2 -Ci S/ - n is at least 1, for example from 1 to 20, preferably 1 to 15, especially 1 to 6, and M is a salt-forming cation such as lithium, sodium, potassium, ammonium, alkylammonium or alkanolammonium.
• Cio-Ci ⁇ such as a Ci 2 -Ci S/ - n is at least 1, for example from 1 to 20, preferably 1 to 15, especially 1 to 6, and M is a salt-forming cation such as lithium, sodium, potassium, ammonium, alkylammonium or alkanolammonium.
• alkyl sulfates and alkyl ether sulfates will generally be used in the form of mixtures comprising varying alkyl chain lengths and, if present, varying degrees of alkoxyla- tion.
• Other anionic surfactants which may be employed are salts of fatty acids, for example C 8 -Cia fatty acids, especially the sodium potassium or alkanolammonium salts, and alkyl, for example Cs-Cia, benzene sulfonates.
• compositions of this invention desirably also contain at least one organic solvent which is preferably water- miscible.
• organic solvents include: the linear alcohols such as ethanol, isopropanol and the isomers of butanol; diols; glycols such as ethylene glycol, propylene glycol and hexylene glycol; glycol ethers, etc.
• Particularly preferred solvents are propylene glycol and glycerol.
• composition additionally comprises up to 10%wt, 8% wt, 6%wt, 4%wt, 2%wt, l%wt or 0.5%wt of minor, ingredients selected from one or more of the following: dye, fragrance, preservative, optical brightener, dye transfer inhibitor or a bittering agent.
• thickeners should be added.
• Exemplary of such polymeric compositions are polyacrylic acid, polymethacrylic acid, acrylic/methacrylic acid copolymers, hydrolyzed polyacrylamide, hydrolyzed polymethacrylamide, hydrolyzed polyacrylonitrile, hydrolyzed polymethacrylonitrile, etc.
• Water soluble salts or partial salts of these polymers, as well as their respective alkali metal or ammonium salts can also be used.
• a preferred polymeric substance is sold under the trademark Polygel DA, which is a polyacrylic acid having a molecular weight greater than 1,000,000. These polymers are used in amounts ranging from about 0.1% to 1%, preferably about 0.4%.
• a preferred thickening agent is xanthan gum which may be present in an amount of from between 0.1% and 0.5%, preferably about 0.3%. In addition to providing beneficial viscosity characteristics to the compositions, xanthan gum also assists in the removal of certain stains.
• compositions of this invention may also include one or more of the usual additives usually present in compositions of this type.
• additives include perfumes, dyes, preservatives, antibacterial agents, fluorescent whitening agents, pigments, etc.
• Suitable preservatives include the isothiazolinones sold under the trademark Kathon DP3 and available from Rohm & Haas.
• compositions may also comprise suspended particles which differ in colour or shade from the aqueous liquid composition. These particles (speckles) can serve an aesthetic purpose and can also provide an additional amount of an agent to the composition. Speckles can be present in amounts ranging from about 0.01 to about 1.0 weight percent. Typically, they will consist of a solid material which can function as an additional stabilizing agent, a coating which melts at a suitable temperature, and a small amount of dye.
• the amount of water present in the composition is at least 30%wt, 40%wt, or 50%wt.

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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)
• Detergent Compositions (AREA)

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• 2009
  • 2009-06-30 GB GB0911294A patent/GB0911294D0/en not_active Ceased
• 2010
  • 2010-06-30 WO PCT/GB2010/051073 patent/WO2011001173A1/en active Application Filing
  • 2010-06-30 EP EP10734543A patent/EP2449081A1/de not_active Withdrawn

Non-Patent Citations (1)

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