EP1151077A1 - Solides particulaires faible densite utilises dans les detergents pour lessive - Google Patents

Solides particulaires faible densite utilises dans les detergents pour lessive

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Publication number
EP1151077A1
EP1151077A1 EP00911769A EP00911769A EP1151077A1 EP 1151077 A1 EP1151077 A1 EP 1151077A1 EP 00911769 A EP00911769 A EP 00911769A EP 00911769 A EP00911769 A EP 00911769A EP 1151077 A1 EP1151077 A1 EP 1151077A1
Authority
EP
European Patent Office
Prior art keywords
alkyl
compositions
composition
laundry detergent
surfactants
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Withdrawn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
EP00911769A
Other languages
German (de)
English (en)
Inventor
Walter August Maria Broeckx
James Pyott Johnston
Diane Parry
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.)
Procter and Gamble Co
Original Assignee
Procter and Gamble Co
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 Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of EP1151077A1 publication Critical patent/EP1151077A1/fr
Withdrawn legal-status Critical Current

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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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0004—Non aqueous liquid compositions comprising insoluble particles
    • 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
    • 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
    • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
    • C11D17/0013—Liquid compositions with insoluble particles in suspension
    • 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

Definitions

  • This invention relates to laundry detergent products, such as heavy duty aqueous and/or non-aqueous and/or gelled liquid laundry detergents and granular and/or powder laundry detergents, which include one or more particulate solids comprising one or more particulate solid density-reducing components and one or more non-enzyme detergent ingredients, such as bleaching agents including, but not limited to, catalysts, bleach activators and preformed peracids, builders, chelants, alkalinity sources (i.e., buffers), anti redeposition agents, catalysts, surfactants, brighteners, dye transfer inhibiting agents, soil release polymers and other non-enzyme detergent ingredients and optionally one or more conventional cleaning adjunct materials
  • bleaching agents including, but not limited to, catalysts, bleach activators and preformed peracids, builders, chelants, alkalinity sources (i.e., buffers), anti redeposition agents, catalysts, surfactants, brighteners, dye transfer inhibiting agents, soil release polymers and other non-enzyme detergent
  • Non-aqueous built laundry liquid detergent compositions are often confronted with problems of phase separation, sedimentation and/or settling out of the suspended builder and other laundry additives.
  • the considerations have an impact on, for example, product pourability, dispensability and/or stability.
  • non-aqueous heavy duty liquid detergents which comprise a surfactant system in a non-aqueous organic solvent combined with particulate solids which have beneficial effects in the wash (e.g., bleaches and bleach activators), have a tendency to be quite unstable and thus, result in the sedimentation and/or settling out of the particulate solids as well as the formation of a clear liquid layer at the surface of the product.
  • low density filler materials used in these references tend to deposit on fabrics and on washing machine parts.
  • EP 839 902 discloses a process for the production of micro-capsules containing a bleach aid for use in detergents wherein the micro-capsules are obtained by polymerization of a monomer mixture comprising at least one ethylenically unsaturated carboxylic acid anhydride, at least one monoethylenically unsaturated monomer different from carboxylic acid anhydride, crosslinking monomers having at least two non- conjugated monoethylenically unsaturated groups in the molecule and water soluble monoethylenically unsaturated monomers.
  • this reference fails to teach low density filler particles. Further, this reference fails to teach the use of water soluble and/or easily dispersible in water low density filler particles for improving the physical stability and the dissolution of laundry detergents, especially non-aqueous liquid laundry detergents.
  • Non-aqueous heavy duty liquid laundry detergents include forming a structuring network within the liquid laundry detergent such that the liquid laundry detergent acquires a high viscosity.
  • High viscosity liquid laundry detergents can negatively impact the dissolution and the dispersion of the laundry detergent product in the wash, resulting in the deposition of imperfectly dissolved product on fabrics under stressed, low temperature/agitation conditions, or when the laundry detergent is used for pre-treating stains.
  • Technologies used for this type of structuring network formation include polymers, clays and hydrophobic silica.
  • the present invention fulfills the needs identified above by providing low density particulate solids that have properties such that the tendency of such particulate solids to sediment and/or settle out of liquid laundry detergent products is reduced; methods of making such low density particulate solids and compositions comprising such low density particulate solids; and products comprising such low density particulate solids.
  • the low density particulate solids of the present invention can be stably suspended in liquid laundry detergent products.
  • the particulate solids of the present invention By stably suspending the particulate solids of the present invention in the liquid laundry detergent products, the particulate solids of the present invention have a reduced tendency to sediment and/or settle out of the laundry detergent products during storage and/or transportation.
  • particulate solids having a reduced tendency to sediment and/or settle out of the laundry detergent products consumers can have more conistent doses with respect to the level of actives, especially the particulate solids, per dose. Further, as a result of the particulate solids having a reduced tendency to sediment and/or settle out of the laundry detergent products, the appearance of a clear top layer in the product is inhibited and/or resisted.
  • the dissolution of the product is not impaired as the low density fillers maintain a low product viscosity. Still even further, as a result of the physical form and composition of the low density fillers, which are either water soluble or easily dispersible in water, the low density fillers do not result in unacceptable residues on fabric and on washing machine parts during use.
  • the present invention provides a way to suspend heavy solids in a laundry detergent, preferably a non- aqueous liquid laundry detergent without increasing the low shear viscosity of the detergent, thus avoiding any slow down of the rate of dissolution in the wash which may occur as a result of increasing the low shear viscosity of the detergent.
  • a laundry detergent preferably a non- aqueous liquid laundry detergent
  • the mileage of the produce is not reduced as a result of product hang-up in the bottle.
  • a particulate solid comprising one or more particulate solid density-reducing components and one or more non-enzyme detergent ingredients is provided.
  • liquid laundry detergent composition comprising the particulate solid of the present invention.
  • a granular and/or powder laundry detergent product comprising the particulate solid of the present invention is provided.
  • a method for laundering fabrics comprising contacting the fabrics with the particulate solid of the present invention, preferably a liquid laundry detergent comprising the particulate solid of the present invention, is provided.
  • a method for laundering fabrics comprising contacting the fabrics with the laundry detergent compositions and/or products of the present invention, preferably the liquid laundry detergent composition and/or product of the present invention, is provided.
  • a method for stabilizing a liquid laundry detergent composition wherein the method comprises the step of adding the particulate solids of the present invention to said composition is provided.
  • a method for inhibiting the formation of a clear top layer in a liquid laundry detergent composition comprising particulate solids wherein the method comprises the step of adding the particulate solids of the present invention to said composition is provided.
  • a method for reducing and/or preventing the deposit of residues on a fabric in need of laundering during laundering of the fabric with a liquid laundry detergent composition comprising particulate solids wherein the method comprises the step of adding the particulate solids of the present invention to said composition is provided.
  • the present invention relates to particulate solids that comprise particulate solid density-reducing components which reduce the tendency of such particulate solids to sediment and/or settle out of liquid laundry detergent compositions.
  • "Particulate solids” herein is meant any non-enzyme detergent ingredient, preferably any non-bleaching agent, that is in the form of a solid (i.e., granules, powder, flakes, chips, particles, etc.).
  • the particulate solids have a particle size of from 1-2000 microns.
  • Porate solid density-reducing components herein is meant any component that when inco ⁇ orated into a particulate solid results in the particulate solid having a reduced density compared to the density of the particulate solid prior to the inco ⁇ oration of the particulate solid density-reducing component(s).
  • suitable examples of particulate solid density-reducing components include, but are not limited to, microspheres (liquid hydrocarbon-containing and/or gas-containing depending upon temperature, and/or hollow), cavities, pores, and other components that result in a reduction of the density of an particulate solid compared to the density of the particulate solid prior to inco ⁇ oration of the component(s).
  • Non-enzyme Detergent Ingredients herein is meant any non-enzyme detergent ingredient known to those skilled in the art that is suitable for inclusion in laundry detergent products. Nonlimiting examples of suitable non-enzyme detergent ingredients are described hereinafter. The non-enzyme detergent ingredients can and preferably do encompass the non-enzyme conventional cleaning adjunct materials described herein. PARTICULATE SOLID
  • the particulate solid of the present invention comprises (a) one or more particulate solid density-reducing components of the present invention.
  • the particulate solids of the present invention may be used to protect sensitive non-enzyme detergent ingredients from the conditions of the laundry detegent compositions containing such particulate solids until such time as the non-enzyme detergent ingredients are needed during the laundering process.
  • the particulate solids of the present invention may be produced in such a way as to release the non-enzyme detergent ingredients in a time-controlled-release manner when the non-enzyme detergent ingredients are needed in the laundering process, especially in the wash.
  • time-controlled-release particulate solids include particulate solids comprising silicone suds suppressors, which preferably are active in the rinse cycle of a conventional wash, terminators for enzymes, fabric softening agents, properfumes, and corrosion inhibitors.
  • the particulate solid density-reducing components are selected from the group consisting of: microspheres, cavity-forming components, pore-forming components and mixtures thereof. More preferably, the particulate solid density-reducing component is selected from the group consisting of microspheres, preferably liquid hydrocarbon-containing and/or gas- containing microspheres, more preferably liquid hydrocarbon-containing and/or gas- containing microspheres made of one or more materials selected from the group consisting of: plastics; proteins; silicaceous materials; ceramics and mixtures thereof.
  • Plastic microspheres of the present invention are preferably made of one or more plastics selected from the group consisting of: thermoplastics; acylonitrile; methacrylonitrile; polyacrylonitrile; polymethacrylonitrile and mixtures thereof.
  • Silicaceous microspheres of the present invention are preferably made of one or more silicaceous materials selected from the group consisting of glass. It is desirable that the microspheres of the present invention are capable of expanding such that the microspheres' volume increases. It is even more desirable that the microspheres of the present invention are made of a material such that the density of the expanded microsphere is less than about 0.4 g/mL, more preferably less than about 0.2 g mL, most preferably less than about 0.1 g/mL.
  • the microspheres contain a suitable expanding agent.
  • the expanding agent can be selected from the group consisting of liquid hydrocarbons, gases, and mixtures thereof.
  • Suitable liquid hydrocarbons are liquid hydrocarbons that are vaporizable at a temperature lower than the softening point of the microsphere material. Examples include, but are not limited to, propane, propylene, butene, n-butane, isobutane, isopentane, neopentane, n- pentane, hexane, heptane, petroleum ether, halogenized methane, tetraalkylsilane and the like.
  • the expanding agents may also be selected from the group consisting of nitrogen, carbon dioxide, oxygen, and mixtures thereof.
  • the expanding agent is isobutane.
  • microspheres are available from Expancel of Sweden (an
  • EXPANCEL® under the trademark EXPANCEL®; PQ Co ⁇ . under the trade names PM 6545, PM 6550, PM 7220, PM 7228, EXTENDOSPHERES®, LUXSIL®, Q- CEL®, SPHERICEL®; and Malinckrodt under the trademark ALBUMEX®.
  • the particulate solids of the present invention preferably have a particle density of from about 0.8 to about 2.1 g/mL, more preferably from about 0.8 to about 1.5 g/mL, most preferably from about 0.9 to about 1.2 g/mL.
  • PROCESS FOR MAKING PARTICULATE SOLIDS The particulate solid density-reducing components of the present invention may be inco ⁇ orated into particulate solids to produce the particulate solids of the present invention by any suitable method known to those of ordinary skill in the art.
  • the particulate solid density-reducing components are inco ⁇ orated into particulate solids by extrusion and/or agglomeration methods. Further, if desirable, the size of the particulate solids of the present invention can be reduced after they are produced by using grinding.
  • the laundry compositions of the present invention also comprise, in addition to one or more particulate solids of the present invention described hereinbefore, one or more cleaning adjunct materials, preferably compatible with the non-enzyme detergent ingredients in the particulate solid(s).
  • cleaning adjunct materials means any liquid, solid or gaseous material selected for the particular type of laundry composition desired and the form of the product (e.g., liquid; granule; powder; gel composition), which materials are also preferably compatible with the non-enzyme detergent ingredients in the particulate solids of the present invention.
  • the specific selection of cleaning adjunct materials are readily made by considering the surface, item or fabric to be cleaned, and the desired form of the composition for the laundry conditions during use (e.g., through the wash detergent use).
  • compatible means the cleaning adjunct materials do not reduce the detersive activity of the non-enzyme detergent ingredients in the particulate solids to such an extent that the non-enzyme detergent ingredients are not effective as desired during normal use situations.
  • suitable cleaning adjunct materials include, but are not limited to, surfactants, builders, bleaches, bleach activators, bleach catalysts, other enzymes, enzyme stabilizing systems, chelants, optical brighteners, soil release polymers, dye transfer agents, dispersants, suds suppressors, dyes, perfumes, colorants, filler salts, hydrotropes, photoactivators, fluorescers, fabric conditioners, hydrolyzable surfactants, perservatives, anti-oxidants, anti-shrinkage agents, anti-wrinkle agents, germicides, fungicides, color speckles, silvercare, anti-tarnish and/or anti- corrosion agents, alkalinity sources, solubilizing agents, carriers, processing aids, pigments and pH control agents as described in U.
  • cleaning adjunct materials are not compatible with the non-enzyme detergent ingredients in the particulate solids within the laundry compositions, then suitable methods of keeping the cleaning adjunct materials and the non-enzyme detergent ingredients in the particulate solids separate (not in contact with each other) until combination of the two components is appropriate can be used. Suitable methods can be any method known in the art, such as gelcaps, encapulation, tablets, physical separation, etc.
  • an effective amount of one or more particulate solids described above are included in compositions useful for laundering a variety of fabrics in need of cleaning.
  • "effective amount of one or more particulate solids” refers to the quantity of particulate solids of the present invention described hereinbefore necessary to achieve the detersive activity necessary in the specific laundry composition.
  • Such effective amounts are readily ascertained by one of ordinary skill in the art and is based on many factors, such as the particular enzyme used, the laundry application, the specific composition of the laundry composition, and whether a liquid or dry (e.g., granular, powder) composition is required, and the like.
  • the laundry detergent compositions of the present invention comprise:
  • a laundry detergent composition of the present invention comprises one or more particulate solids of the present invention such that the density difference between the density of the laundry detergent composition and the density of the particulate solids is less than about 0.2 g/mL, more preferably less than about 0.1 g/mL, most preferably less than about 0.05 g/mL.
  • the laundry compositions comprise one or more particulate solids of the present invention such that the particulate solids are present in the laundry compositions of the present invention at a level of from about 0.1%, preferably from about 1%, more preferably from about 2%, by weight of the laundry compositions of one or more particulate solids of the present invention, to about 60%, preferably to about 40%, more preferably to about 25%.
  • the particulate solids of the present invention comprise one or more non-enzyme detergent ingredients of the present invention such that the non-enzyme detergent ingredients are present in the laundry compositions of the present invention at a level of from about 0.0001% to about 2%, more preferably from about 0.001% to about 2%, most preferably from about 0.01% to about 1% by weight of the laundry composition.
  • the laundry compositions may include from about 1% to about 99.9% by weight of the composition of the cleaning adjunct materials.
  • fabric laundry compositions include hand and machine laundry detergent compositions including laundry additive compositions and compositions suitable for use in the soaking and/or pretreatment of stained fabrics.
  • the compositions of the present invention preferably contain both a surfactant and a builder compound and additionally one or more cleaning adjunct materials preferably selected from organic polymeric compounds, bleaching agents, additional enzymes, suds suppressors, dispersants, lime-soap dispersants, soil suspension and anti-redeposition agents and corrosion inhibitors.
  • Laundry compositions can also contain softening agents, as additional cleaning adjunct materials.
  • compositions of the present invention can also be used as detergent additive products in solid or liquid form. Such additive products are intended to supplement or boost the performance of conventional detergent compositions and can be added at any stage of the laundry process. If needed the density of the laundry detergent compositions herein ranges from
  • the "compact" form of the laundry compositions herein is best reflected by density and, in terms of composition, by the amount of inorganic filler salt; inorganic filler salts are conventional ingredients of detergent compositions in powder form; in conventional detergent compositions, the filler salts are present in substantial amounts, typically 17-35% by weight of the total composition. In the compact compositions, the filler salt is present in amounts not exceeding 15% of the total composition, preferably not exceeding 10%, most preferably not exceeding 5% by weight of the composition.
  • the inorganic filler salts, such as meant in the present compositions are selected from the alkali and alkaline-earth-metal salts of sulfates and chlorides.
  • a preferred filler salt is sodium sulfate.
  • Liquid laundry compositions according to the present invention can also be in a "concentrated form", in such case, the liquid laundry compositions according the present invention will contain a lower amount of water, compared to conventional liquid detergents.
  • the water content of the concentrated liquid laundry composition is preferably less than 40%, more preferably less than 30%, most preferably less than 20% by weight of the laundry composition.
  • Non-aqueous, liquid, heavy-duty detergent compositions in accordance with the present invention are in the form of a stable suspension of solid, substantially insoluble particulate material dispersed throughout a structured, surfactant-containing liquid phase.
  • Such detergent compositions comprise from about 49% to 99.95% by weight of the composition of a structured, surfactant-containing liquid phase formed by combining: i) from about 1% to 80% by weight of said liquid phase of one or more nonaqueous organic diluents; and ii) from about 20% to 99% by weight of said liquid phase of a surfactant system comprising surfactants selected from the group consisting of anionic, nonionic, cationic surfactants and combinations thereof.
  • the surfactant-containing, non-aqueous liquid phase of the non-aqueous liquid laundry detergent compositions of the present invention will generally comprise from about 52% to about 98.9% by weight of the detergent compositions herein. More preferably, this liquid phase is surfactant-structured and will comprise from about 55% to
  • this non-aqueous liquid phase will comprise from about 55% to 70% by weight of the compositions herein.
  • a surfactant-containing liquid phase will frequently have a density of from about 0.6 to 1.4 g/cc, more preferably from about 0.9 to 1.3 g/cc.
  • the liquid phase of the detergent compositions herein is preferably formed from one or more non-aqueous organic diluents into which is mixed a surfactant structuring agent which is preferably a specific type of anionic surfactant-containing powder.
  • a surfactant structuring agent which is preferably a specific type of anionic surfactant-containing powder.
  • non-aqueous organic diluents used in this invention may be either surface active, i.e., surfactant, liquids or non-aqueous, non-surfactant liquids referred to herein as non-aqueous solvents.
  • solvent is used herein to connote the non-surfactant, non-aqueous liquid portion of the compositions herein. While some of the essential and/or optional components of the compositions herein may actually dissolve in the "solvenf'-containing liquid phase, other components will be present as particulate material dispersed within the "solvent"-containing liquid phase. Thus the term “solvent” is not meant to require that the solvent material be capable of actually dissolving all of the detergent composition components added thereto.
  • the non-aqueous liquid diluent component will generally comprise from about
  • the liquid phase of the compositions herein i.e., the non-aqueous liquid diluent component, will comprise both non-aqueous liquid surfactants and non-surfactant non-aqueous solvents.
  • the non-aqueous liquid diluent component will comprise both non-aqueous liquid surfactants and non-surfactant non-aqueous solvents.
  • non-aqueous surfactant liquids which can be used to form the liquid phase of the compositions herein include the alkoxylated alcohols, ethylene oxide (EO)-propylene oxide (PO) block polymers, polyhydroxy fatty acid amides, alkylpolysaccharides, and the like.
  • Such normally liquid surfactants are those having an HLB ranging from 10 to 16.
  • Most preferred of the surfactant liquids are the alcohol alkoxylate nonionic surfactants.
  • Alcohol alkoxylates are materials which correspond to the general formula: wherein Ri is a Cg - C ⁇ alkyl group, m is from 2 to 4, and n ranges from about 2 to 12.
  • R* is an alkyl group, which may be primary or secondary, that contains from about 9 to 15 carbon atoms, more preferably from about 10 to 14 carbon atoms.
  • the alkoxylated fatty alcohols will be ethoxylated materials that contain from about 2 to 12 ethylene oxide moieties per molecule, more preferably from about 3 to 10 ethylene oxide moieties per molecule.
  • the alkoxylated fatty alcohol materials useful in the liquid phase will frequently have a hydrophilic-lipophilic balance (HLB) which ranges from about 3 to 17. More preferably, the HLB of this material will range from about 6 to 15, most preferably from about 8 to 15.
  • HLB hydrophilic-lipophilic balance
  • fatty alcohol alkoxylates useful in or as the non-aqueous liquid phase of the compositions herein will include those which are made from alcohols of 12 to 15 carbon atoms and which contain about 7 moles of ethylene oxide. Such materials have been commercially marketed under the trade names Neodol 25-7 and Neodol 23-6.5 by Shell Chemical Company.
  • Neodols include Neodol 1-5, an ethoxylated fatty alcohol averaging 11 carbon atoms in its alkyl chain with about 5 moles of ethylene oxide; Neodol 23-9, an ethoxylated primary C12 - C13 alcohol having about 9 moles of ethylene oxide and Neodol 91-10, an ethoxylated C9-C11 primary alcohol having about 10 moles of ethylene oxide. Alcohol ethoxylates of this type have also been marketed by Shell Chemical Company under the Dobanol tradename.
  • Dobanol 91-5 is an ethoxylated C9- C ⁇ ⁇ fatty alcohol with an average of 5 moles ethylene oxide and Dobanol 25-7 is an ethoxylated C12-C15 fatty alcohol with an average of 7 moles of ethylene oxide per mole of fatty alcohol.
  • Suitable ethoxylated alcohols include Tergitol 15-S-7 and
  • Tergitol 15-S-9 both of which are linear secondary alcohol ethoxylates that have been commercially marketed by Union Carbide Co ⁇ oration.
  • the former is a mixed ethoxylation product of C ⁇ ⁇ to C ⁇ linear secondary alkanol with 7 moles of ethylene oxide and the latter is a similar product but with 9 moles of ethylene oxide being reacted.
  • Alcohol ethoxylates useful in the present compositions are higher molecular weight nonionics, such as Neodol 45-11, which are similar ethylene oxide condensation products of higher fatty alcohols, with the higher fatty alcohol being of 14-
  • alcohol alkoxylate nonionic surfactant is utilized as part of the non-aqueous liquid phase in the detergent compositions herein, it will preferably be present to the extent of from about 1% to 60% of the composition structured liquid phase. More preferably, the alcohol alkoxylate component will comprise about 5% to 40% of the structured liquid phase. Most preferably, an alcohol alkoxylate component will comprise from about 5% to 35% of the detergent composition structured liquid phase. Utilization of alcohol alkoxylate in these concentrations in the liquid phase corresponds to an alcohol alkoxylate concentration in the total composition of from about 1% to 60% by weight, more preferably from about 2% to 40% by weight, and most preferably from about 5% to 25% by weight, of the composition.
  • Non-aqueous surfactant liquid which may be utilized in this invention are the ethylene oxide (EO) - propylene oxide (PO) block polymers.
  • Materials of this type are well known nonionic surfactants which have been marketed under the tradename Pluronic. These materials are formed by adding blocks of ethylene oxide moieties to the ends of polypropylene glycol chains to adjust the surface active properties of the resulting block polymers.
  • Pluronic nonionic surfactants of this type are described in greater detail in Davidsohn and Milwidsky; Synthetic Detergents, 7th Ed.; Longman Scientific and Technical (1987) at pp. 34-36 and pp. 189-191 and in U.S. Patents 2,674,619 and 2,677,700.
  • Non-aqueous surfactant liquid useful in the compositions herein comprises polyhydroxy fatty acid amide surfactants. If present, the polyhydroxy fatty acid amide surfactants are preferably present in a concentration of from about 0.1 to about 8%. Materials of this type of nonionic surfactant are those which conform to the formula:
  • R— C— N— Z wherein R is a C9.17 alkyl or alkenyl, p is from 1 to 6, and Z is glycityl derived from a reduced sugar or alkoxylated derivative thereof.
  • Such materials include the Ci 2-C ⁇ g N- methyl glucamides. Examples are N-methyl N-1-deoxyglucityl cocoamide and N-methyl N-1-deoxyglucityl oleamide. Processes for making polyhydroxy fatty acid, amides are know and can be found, for example, in Wilson, U.S. Patent 2,965,576 and Schwartz, U.S. Patent 2,703,798, the disclosures of which are inco ⁇ orated herein by reference. The materials themselves and their preparation are also described in greater detail in Honsa, U.S. Patent 5,174,937, Issued December 26, 1992, which patent is also inco ⁇ orated herein by reference.
  • the amount of total liquid surfactant in the preferred surfactant-structured, non- aqueous liquid phase herein will be determined by the type and amounts of other composition components and by the desired composition properties.
  • the liquid surfactant can comprise from about 35% to 70% of the non-aqueous liquid phase of the compositions herein. More preferably, the liquid surfactant will comprise from about 50% to 65% of a non-aqueous structured liquid phase. This corresponds to a non-aqueous liquid surfactant concentration in the total composition of from about 15% to 70% by weight, more preferably from about 20% to 50% by weight, of the composition. Hi.
  • Non-surfactant Non-aqueous Organic Solvents may also comprise one or more non-surfactant, non-aqueous organic solvents.
  • non-surfactant non-aqueous liquids are preferably those of low polarity.
  • low-polarity liquids are those which have little, if any, tendency to dissolve one of the preferred types of particulate material used in the compositions herein, i.e., the peroxygen bleaching agents, sodium perborate or sodium percarbonate.
  • relatively polar solvents such as ethanol are preferably not utilized.
  • Suitable types of low-polarity solvents useful in the non-aqueous liquid detergent compositions herein do include non- vicinal C4-Cg alkylene glycols, alkylene glycol mono lower alkyl ethers, lower molecular weight polyethylene glycols, lower molecular weight methyl esters and amides, and the like.
  • a preferred type of non-aqueous, low-polarity solvent for use in the compositions herein comprises the non-vicinal C4-Cg branched or straight chain alkylene glycols.
  • hexylene glycol (4-methyl-2,4-pentanediol), 1,6-hexanediol, 1,3-butylene glycol and 1,4-butylene glycol.
  • Hexylene glycol is the most preferred.
  • non-aqueous, low-polarity solvent for use herein comprises the mono-, di-, tri-, or tetra- C2-C3 alkylene glycol mono C2-C6 alkyl ethers.
  • Such compounds include diethylene glycol monobutyl ether, tetraethylene glycol monobutyl ether, dipropolyene glycol monoethyl ether, and dipropylene glycol monobutyl ether.
  • Diethylene glycol monobutyl ether, dipropylene glycol monobutyl ether and butoxy-propoxy-propanol (BPP) are especially preferred.
  • Compounds of the type have been commercially marketed under the trade names Dowanol, Carbitol, and Cellosolve.
  • non-aqueous, low-polarity organic solvent useful herein comprises the lower molecular weight polyethylene glycols (PEGs). Such materials are those having molecular weights of at least about 150. PEGs of molecular weight ranging from about 200 to 600 are most preferred. Yet another preferred type of non-polar, non-aqueous solvent comprises lower molecular weight methyl esters. Such materials are those of the general formula: Rl-
  • C(O)-OCH3 wherein R ⁇ ranges from 1 to about 18.
  • suitable lower molecular weight methyl esters include methyl acetate, methyl propionate, methyl octanoate, and methyl dodecanoate.
  • the non-aqueous, generally low-polarity, non-surfactant organic solvent(s) employed should, of course, be compatible and non-reactive with other composition components, e.g., bleach and/or activators, used in the liquid detergent compositions herein.
  • Such a solvent component is preferably utilized in an amount of from about 1% to 70% by weight of the liquid phase.
  • a non-aqueous, low-polarity, non- surfactant solvent will comprise from about 10% to 60% by weight of a structured liquid phase, most preferably from about 20% to 50% by weight, of a structured liquid phase of the composition. Utilization of non-surfactant solvent in these concentrations in the liquid phase corresponds to a non- surfactant solvent concentration in the total composition of from about 1% to 50% by weight, more preferably from about 5% to 40% by weight, and most preferably from about 10% to 30% by weight, of the composition.
  • the ratio of surfactant to non-surfactant liquids e.g., the ratio of alcohol alkoxylate to low polarity solvent
  • the weight ratio of surfactant liquid to non-surfactant organic solvent will range about 50: 1 to 1 :50. More preferably, this ratio will range from about 3: 1 to 1 :3, most preferably from about 2:1 to 1 :2.
  • the non-aqueous liquid phase of the detergent compositions of this invention is prepared by combining with the non-aqueous organic liquid diluents hereinbefore described a surfactant which is generally, but not necessarily, selected to add structure to the non-aqueous liquid phase of the detergent compositions herein.
  • Structuring surfactants can be of the anionic, nonionic, cationic, and/or amphoteric types.
  • Preferred structuring surfactants are the anionic surfactants such as the alkyl sulfates, the alkyl polyalkxylate sulfates and the linear alkyl benzene sulfonates.
  • anionic surfactant material which may be optionally added to the detergent compositions herein as structurant comprises carboxylate-type anionics.
  • Carboxylate-type anionics include the Ci Q-Cig alkyl alkoxy carboxylates (especially the
  • Structuring anionic surfactants will generally comprise from about 1% to 30% by weight of the compositions herein.
  • one preferred type of structuring anionic surfactant comprises primary or secondary alkyl sulfate anionic surfactants.
  • Such surfactants are those produced by the sulfation of higher C -C20 fatty alcohols.
  • R is typically a linear Cg - C20 hydrocarbyl group, which may be straight chain or branched chain, and M is a water-solubilizing cation.
  • R is a CJO-14 alkyl, and M is alkali metal.
  • R is about C12 and M is sodium.
  • Conventional secondary alkyl sulfates may also be utilized as a structuring anionic surfactant for the liquid phase of the compositions herein.
  • Conventional secondary alkyl sulfate surfactants are those materials which have the sulfate moiety distributed randomly along the hydrocarbyl "backbone" of the molecule. Such materials may be depicted by the structure:
  • alkyl sulfates will generally comprise from about 1% to 30% by weight of the composition, more preferably from about 5% to 25% by weight of the composition.
  • Non-aqueous liquid detergent compositions containing alkyl sulfates, peroxygen bleaching agents, and bleach activators are described in greater detail in Kong-Chan et al.; WO 96/10073; Publiched April 4, 1996, which application is inco ⁇ orated herein by reference.
  • Alkyl polyalkoxylate sulfates are also known as alkoxylated alkyl sulfates or alkyl ether sulfates. Such materials are those which correspond to the formula
  • R ⁇ is a C10-C22 a ⁇ yl group- m * s fr° m 2 to 4, n is from about 1 to 15, and M is a salt-forming cation.
  • R ⁇ is a Ci2-C ⁇ g alkyl, m is 2, n is from about 1 to 10, and M is sodium, potassium, ammonium, alkylammonium or alkanolammonium.
  • R ⁇ is a Ci2-Ci6 > m is 2, n is from about 1 to 6, and M is sodium. Ammonium, alkylammonium and alkanolammonium counterions are preferably avoided when used in the compositions herein because of incompatibility with peroxygen bleaching agents.
  • alkyl polyalkoxylate sulfates can also generally comprise from about 1% to 30% by weight of the composition, more preferably from about 5% to 25% by weight of the composition.
  • Non-aqueous liquid detergent compositions containing alkyl polyalkoxylate sulfates, in combination with polyhydroxy fatty acid amides, are described in greater detail in boutique et al; PCT Application No. PCT/US96/04223, which application is inco ⁇ orated herein by reference.
  • anionic surfactant for use as a structurant in the compositions herein comprises the linear alkyl benzene sulfonate (LAS) surfactants.
  • LAS surfactants can be formulated into a specific type of anionic surfactant-containing powder which is especially useful for inco ⁇ oration into the non- aqueous liquid detergent compositions of the present invention.
  • Such a powder comprises two distinct phases. One of these phases is insoluble in the non-aqueous organic liquid diluents used in the compositions herein; the other phase is soluble in the non-aqueous organic liquids.
  • this preferred anionic surfactant-containing powder which can be dispersed in the non-aqueous liquid phase of the preferred compositions herein and which forms a network of aggregated small particles that allows the final product to stably suspend other solid particulate materials in the composition.
  • Such a preferred anionic surfactant-containing powder is formed by co-drying an aqueous slurry which essentially contains a) one of more alkali metal salts of CiO-16 linear alkyl benzene sulfonic acids; and b) one or more non-surfactant diluent salts.
  • a slurry is dried to a solid material, generally in powder form, which comprises both the soluble and insoluble phases.
  • the linear alkyl benzene sulfonate (LAS) materials used to form the prefened anionic surfactant-containing powder are well known materials. Such surfactants and their preparation are described for example in U.S. Patents 2,220,099 and 2,477,383, inco ⁇ orated herein by reference.
  • Especially prefened are the sodium and potassium linear straight chain alkylbenzene sulfonates in which the average number of carbon atoms in the alkyl group is from about 11 to 14.
  • Sodium Cn-14, e.g., C12, LAS is especially preferred.
  • the alkyl benzene surfactant anionic surfactants are generally used in the powder- forming slurry in an amount from about 20 to 70% by weight of the slurry, more preferably from about 20% to 60% by weight of the slurry.
  • the powder-forming slurry also contains a non-surfactant, organic or inorganic salt component that is co-dried with the LAS to form the two-phase anionic surfactant- containing powder.
  • a non-surfactant, organic or inorganic salt component that is co-dried with the LAS to form the two-phase anionic surfactant- containing powder.
  • Such salts can be any of the known sodium, potassium or magnesium halides, sulfates, citrates, carbonates, sulfates, borates, succinates, sulfo-succinates and the like.
  • Sodium sulfate which is generally a bi-product of LAS production, is the prefened non-surfactant diluent salt for use herein. Salts which function as hydrotropes such as sodium sulfo-succinate may also usefully be included.
  • the non-surfactant salts are generally used in the aqueous slurry, along with the LAS, in amounts ranging from about 1 to 50% by weight of the slurry, more preferably from about 5% to 40% by weight of the slurry. Salts that act as hydrotropes can preferably comprise up to about 3% by weight of the slurry.
  • the aqueous slurry containing the LAS and diluent salt components hereinbefore described can be dried to form the anionic surfactant-containing powder preferably added to the non-aqueous diluents in order to prepare a structured liquid phase within the compositions herein.
  • Any conventional drying technique e.g., spray drying, drum drying, etc., or combination of drying techniques, may be employed. Drying should take place until the residual water content of the solid material which forms is within the range of from about 0.5% to 4% by weight, more preferably from about 1% to 3% by weight.
  • the anionic surfactant-containing powder produced by the drying operation constitutes two distinct phases, one of which is soluble in the inorganic liquid diluents used herein and one of which is insoluble in the diluents.
  • the insoluble phase in the anionic surfactant-containing powder generally comprises from about 10% to 45% by weight of the powder, more preferably from about 15% to 35% by weight of a powder.
  • the anionic surfactant-containing powder that results after drying can comprise from about 45% to 94%, more preferably from about 60% to 94%, by weight of the powder of alkyl benzene sulfonic acid salts.
  • Such concentrations are generally sufficient to provide from about 0.5% to 60%, more preferably from about 15% to 60%, by weight of the total detergent composition that is eventually prepared, of the alkyl benzene sulfonic acid salts.
  • the anionic surfactant-containing powder itself can comprise from about 0.45% to 45% by weight of the total composition that is eventually prepared. After drying, the anionic surfactant-containing powder will also generally contain from about 2% to 50%, more preferably from about 2% to 25% by weight of the powder of the non- surfactant salts. After it is dried to the requisite extent, the combined LAS/salt material can be converted to flakes or powder form by any known suitable milling or comminution process.
  • the particle size of this powder will range from 0.1 to 2000 microns, more preferably from about 0.1 to 1000 microns.
  • a structured, surfactant-containing liquid phase of the prefened detergent compositions herein can be prepared by combining the non-aqueous organic diluents hereinbefore described with the anionic surfactant-containing powder as hereinbefore described. Such combination results in the formation of a structured surfactant-containing liquid phase. Conditions for making this combination of prefened structured liquid phase components are described more fully hereinafter in the "Composition Preparation and Use" section.
  • a structured, surfactant-containing liquid phase permits the stable suspension of colored speckles and additional functional particulate solid materials within the prefened detergent compositions of this invention.
  • Additional suitable surfactants for use in the present invention included nonionic surfactants, specifically, polyhydroxy fatty acid amides of the formula:
  • R — C — N — Z wherein R is a C9..17 alkyl or alkenyl, R ⁇ is a methyl group and Z is glycityl derived from a reduced sugar or alkoxylated derivative thereof. Examples are N-methyl N-l- deoxyglucityl cocoamide and N-methyl N-l -deoxyglucityl oleamide. Processes for making polyhydroxy fatty acid amides are known and can be found in Wilson, U.S.
  • Patent 2,965,576 and Schwartz U.S. Patent 2,703,798, the disclosures of which are inco ⁇ orated herein by reference.
  • Preferred surfactants for use in the detergent compositions described herein are amine based surfactants of the general formula:
  • R ⁇ is a Cg-Ci 2 alkyl group
  • n is from about 2 to about 4
  • X is a bridging group which is selected from NH, CONH, COO, or O or X can be absent
  • R3 and R4 are individually selected from H, C1 -C4 alkyl, or (CH2-CH2-0(R5)) wherein R5 is H or methyl.
  • Especially prefened amines based surfactants include the following:
  • R ⁇ is a C6-C12 alkyl group and R5 is H or CH3.
  • Particularly prefened amines for use in the surfactants defined above include those selected from the group consisting of octyl amine, hexyl amine, decyl amine, dodecyl amine, Cg-Ci 2 bis(hydroxyethyl)amine, Cg-Ci2 bis(hydroxyisopropyl)amine, Cg-Ci2 amido-propyl dimethyl amine, or mixtures thereof.
  • the amine based surfactant is described by the formula:
  • the non-aqueous detergent compositions herein preferably comprise from about 0.01% to 50% by weight, more preferably from about 0.2% to 30% by weight, of solid phase particulate material which is dispersed and suspended within the liquid phase.
  • solid phase particulate material will range in size from about 0.1 to 1500 microns, more preferably from about 0.1 to 900 microns. Most preferably, such material will range in size from about 5 to 200 microns.
  • the particulate material utilized herein can comprise one or more types of detergent composition components which in particulate form are substantially insoluble in the non-aqueous liquid phase of the composition.
  • the types of particulate materials which can be utilized are described in detail as follows: AQUEOUS BASED HEAVY DUTY LIQUID DETERGENTS SURFACTANTS
  • the present invention also comprises aqueous based liquid detergent compositions.
  • the aqueous liquid detergent compositions preferably comprise from about 10% to about
  • the aqueous liquid detergent compositions of the present invention comprise a surfactant system which preferably contains one or more detersive co-surfactants in addition to the branched surfactants disclosed above.
  • the additional co-surfactants can be selected from nonionic detersive surfactant, anionic detersive surfactant, zwitterionic detersive surfactant, amine oxide detersive surfactant, and mixtures thereof.
  • the surfactant system typically comprises from about 5% to about
  • Anionic surfactants include C ⁇ -Ci g alkyl benzene sulfonates (LAS) and primary, branched-chain and random C10-C20 alkyl sulfates (AS), the Ci ⁇ -Cig secondary (2,3)
  • alkyl sulfates of the formula CH 3 (CH 2 ) x (CHOS ⁇ 3 " M + ) CH 3 and CH 3
  • x and (y + 1) are integers of at least about 7, preferably at least about 9, and M is a water-solubilizing cation, especially sodium, unsaturated sulfates such as oleyl sulfate, the CjQ- ig alkyl alkoxy sulfates ("AE X S"; especially EO 1-7 ethoxy sulfates), CjQ-Ci alkyl alkoxy carboxylates (especially the EO
  • Useful anionic surfactants include the water-soluble salts, particularly the alkali metal, ammonium and alkylolammonium (e.g., monoethanolammonium or triethanolammonium) salts, of organic sulfuric reaction products having in their molecular structure an alkyl group containing from about 10 to about 20 carbon atoms and a sulfonic acid or sulfuric acid ester group.
  • water-soluble salts particularly the alkali metal, ammonium and alkylolammonium (e.g., monoethanolammonium or triethanolammonium) salts, of organic sulfuric reaction products having in their molecular structure an alkyl group containing from about 10 to about 20 carbon atoms and a sulfonic acid or sulfuric acid ester group.
  • alkyl is the alkyl portion of aryl groups.
  • alkyl sulfates especially those obtained by sulfating the higher alcohols (Cg-Ci g carbon atoms) such as those produced by reducing the glycerides of tallow or coconut oil.
  • anionic surfactants herein are the water-soluble salts of alkyl phenol ethylene oxide ether sulfates containing from about 1 to about 4 units of ethylene oxide per molecule and from about 8 to about 12 carbon atoms in the alkyl group.
  • Other useful anionic surfactants herein include the water-soluble salts of esters of a-sulfonated fatty acids containing from about 6 to 20 carbon atoms in the fatty acid group and from about 1 to 10 carbon atoms in the ester group; water-soluble salts of 2-acyloxy- alkane-1 -sulfonic acids containing from about 2 to 9 carbon atoms in the acyl group and from about 9 to about 23 carbon atoms in the alkane moiety; water-soluble salts of olefin sulfonates containing from about 12 to 24 carbon atoms; and b-alkyloxy alkane sulfonates containing from about 1 to 3 carbon atoms in the alkyl group and from about 8 to 20 carbon atoms in the alkane moiety.
  • Particularly prefened anionic surfactants herein are the alkyl polyethoxylate sulfates of the formula:
  • R is an alkyl chain having from about 10 to about 22 carbon atoms, saturated or unsaturated
  • M is a cation which makes the compound water-soluble, especially an alkali metal, ammonium or substituted ammonium cation, and x averages from about 1 to about 15.
  • Prefened alkyl sulfate surfactants are the non-ethoxylated C12-.15 primary and secondary alkyl sulfates.
  • fatty acids include capric, lauric, myristic, palmitic, stearic, arachidic, and behenic acid.
  • Other fatty acids include palmitoleic, oleic, linoleic, linolenic, and ricinoleic acid.
  • Ci2-C ⁇ g alkyl ethoxylates including the so-called nanow peaked alkyl ethoxylates and Cg-Ci 2 alkyl phenol alkoxylates (especially ethoxylates and mixed ethoxy/propoxy).
  • the Cio- C ⁇ N-alkyl polyhydroxy fatty acid amides can also be used. Typical examples include the Ci 2-C ⁇ g N-methylglucamides. See WO 9,206,154.
  • Other sugar-derived surfactants include the N-alkoxy polyhydroxy fatty acid amides, such as Cjo-Cig N-(3- methoxypropyl) glucamide.
  • N-propyl through N-hexyl C ⁇ -Cig glucamides can be used for low sudsing.
  • C10-C20 conventional soaps may also be used. If high sudsing is desired, the branched-chain C10-C16 soaps may be used. Examples of nonionic surfactants are described in U.S. Patent No. 4,285,841, Banat et al, issued August 25, 1981.
  • surfactants include ethoxylated alcohols and ethoxylated alkyl phenols of the formula R(OC2H4) n OH, wherein R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 15 carbon atoms and alkyl phenyl radicals in which the alkyl groups contain from about 8 to about 12 carbon atoms, and the average value of n is from about 5 to about 15.
  • R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 15 carbon atoms and alkyl phenyl radicals in which the alkyl groups contain from about 8 to about 12 carbon atoms, and the average value of n is from about 5 to about 15.
  • ethoxylated alcohols having an average of from about 10 to abut 15 carbon atoms in the alcohol and an average degree of ethoxylation of from about 6 to about 12 moles of ethylene oxide per mole of alcohol. Mixtures of anionic and nonionic surfactants are especially useful.
  • compositions herein also contain amine oxide surfactants of the formula:
  • the structure (I) provides one long-chain moiety Rl(EO) x (PO)y(BO) z and two short chain moieties, CH2R'.
  • R' is preferably selected from hydrogen, methyl and -CH2OH.
  • Ri is a primary or branched hydrocarbyl moiety which can be saturated or unsaturated, preferably, Ri is a primary alkyl moiety.
  • R is a hydrocarbyl moiety having chainlength of from about 8 to about
  • Ri may be somewhat longer, having a chainlength in the range Ci2-C24-
  • the general formula also encompasses amine oxides wherein x+y+z
  • the invention also encompasses amine oxides wherein x+y+z is different from zero, specifically x+y+z is from about 1 to about 10, R ⁇ is a primary alkyl group containing 8 to about 24 carbons, preferably from about 12 to about 16 carbon atoms; in these embodiments y + z is preferably 0 and x is preferably from about 1 to about 6, more preferably from about 2 to about 4; EO represents ethyl eneoxy; PO represents propyleneoxy; and BO represents butyl eneoxy.
  • Such amine oxides can be prepared by conventional synthetic methods, e.g., by the reaction of alkylethoxysulfates with dimethylamine followed by oxidation of the ethoxylated amine with hydrogen peroxide.
  • Highly prefened amine oxides herein are solids at ambient temperature, more preferably they have melting-points in the range 30°C to 90°C.
  • Amine oxides suitable for use herein are made commercially by a number of suppliers, including Akzo Chemie, Ethyl Co ⁇ ., and Procter & Gamble. See McCutcheon's compilation and Kirk-Othmer review article for alternate amine oxide manufacturers.
  • Prefened commercially available amine oxides are the solid, dihydrate ADMOX 16 and ADMOX 18, ADMOX 12 and especially ADMOX 14 from Ethyl Co ⁇ .
  • Preferred embodiments include dodecyldimethylamine oxide dihydrate, hexadecyldimethylamine oxide dihydrate, octadecyldimethylamine oxide dihydrate, hexadecyltris(ethyleneoxy)dimethyl-amine oxide, tetradecyldimethylamine oxide dihydrate, and mixtures thereof.
  • R' is H
  • the invention further encompasses embodiments wherein R' is CH2OH, such as hexadecylbis(2- hydroxyethyl) amine oxide, tallowbis(2-hydroxyethyl)amine oxide, stearylbis(2- hydroxyethyl)amine oxide and oleylbis(2- hydroxyethyl)amine oxide.
  • R' is CH2OH, such as hexadecylbis(2- hydroxyethyl) amine oxide, tallowbis(2-hydroxyethyl)amine oxide, stearylbis(2- hydroxyethyl)amine oxide and oleylbis(2- hydroxyethyl)amine oxide.
  • the present invention encompasses a heavy duty gel laundry detergent compositions comprising, by weight of the composition: a) from about 15% to about 40% of an anionic surfactant component which comprises, by weight of the composition: (i) from about 5% to about 25% of alkyl polyethoxylate sulfates wherein the alkyl group contains from about 10 to about 22 carbon atoms and the polyethoxylate chain contains from 0.5 to about 15, preferably from 0.5 to about 5, more preferably from 0.5 to about 4, ethylene oxide moieties; and (ii) from about 5% to about 20% of fatty acids; and b) one or more of the following ingredients: detersive amine, modified polyamine, polyamide-polyamine, polyethoxylated-polyamine polymers, quaternary ammonium surfactants, suitable electrolyte or acid equivalents thereof, and mixtures thereof.
  • an anionic surfactant component which comprises, by weight of the composition: (i) from about 5% to about 25% of alkyl polyethoxylate
  • compositions herein may further contain one or more additional detersive additives selected from the group consisting of non-citrate builders, optical brighteners, soil release polymers, dye transfer inhibitors, polymeric dispersing agents, enzymes, suds suppressers, dyes, perfumes, colorants, filler salts, hydrotropes, antiredeposition agents, antifading agent, dye fixative agents, prill/fuzzing reducing agents, and mixtures thereof.
  • additional detersive additives selected from the group consisting of non-citrate builders, optical brighteners, soil release polymers, dye transfer inhibitors, polymeric dispersing agents, enzymes, suds suppressers, dyes, perfumes, colorants, filler salts, hydrotropes, antiredeposition agents, antifading agent, dye fixative agents, prill/fuzzing reducing agents, and mixtures thereof.
  • compositions herein have a viscosity at 20 s ⁇ l shear rate of from about 100 cp to about 4,000 cp, preferably from about 300 cp to about 3,000 cp, more preferably from about 500 cp to about 2,000 cp and are stable upon storage.
  • compositions herein are structured and have a specific rheology.
  • the rheology can be modeled by the following formula: ⁇ ⁇ ⁇ o + ⁇ C"- 1 ) where ⁇ is the viscosity of the liquid at a given shear rate, ⁇ 0 is the viscosity at infinite shear rate, ⁇ is the shear rate, n is the shear rate index, and K is the consistency index.
  • the term "structured” indicates a heavy duty liquid composition having a liquid crystalline lamellar phase and an infinite shear viscosity ( ⁇ o) value between 0 and about 3,000cp (centipoise), a shear index (n) value of less than about 0.6, a consistency index value, K, of above about 1,000, and a viscosity ( ⁇ ) measured at 20 s ⁇ * of less than about 10,000cp, preferably less than about 5,000cp.
  • a “zero shear” viscosity is above about 100,000cp wherein “zero shear” is meant a shear rate of
  • compositions herein obtained by plotting viscosity versus stress, is larger than 0.2Pa.
  • rheology parameters can be measured with any commercially available rheometer, such as the Cammed CSL 100 model.
  • the compositions herein are clear or translucent, i.e. not opaque.
  • Electrolytes Without being limited by theory, it is believed that the presence of electrolytes acts to control the viscosity of the gel compositions. Thus, the gel nature of the compositions herein are affected by the choice of surfactants and by the amount of electrolytes present. In prefened embodiments herein, the compositions will further comprise from 0% to about 10%, more preferably from about 1% to about 8%, even more preferably from about 2% to about 6%, of a suitable electrolyte or acid equivalent thereof. Sodium citrate is a highly prefened electrolyte for use herein.
  • compositions herein may optionally contain from about 0% to about 10%, by weight, of solvents and hydrotropes.
  • solvent is meant the commonly used solvents in the detergent industry, including alkyl monoalcohol, di-, and tri-alcohols, ethylene glycol, propylene glycol, propanediol, ethanediol, glycerine, etc.
  • hydrotrope is meant the commonly used hydrotropes in the detergent industry, including short chain surfactants that help solubilize other surfactants.
  • hydrotropes include cumene, xylene, or toluene sulfonate, urea, Cg or shorter chain alkyl carboxylates, and Cg or shorter chain alkyl sulfate and ethoxylated sulfates.
  • Modified polyamine - may comprise at least about 0.05%, preferably from about 0.05% to about 3%, by weight, of a water-soluble or dispersible, modified polyamine agent, said agent comprising a polyamine backbone conesponding to the formula: [ (R2 ) 2 -N] w - [Rl -N] x - [Rl -N] y - [R! -N] Z
  • R 2 R 2 (R 2 - 2 wherein each R ⁇ is independently C2-C5 alkylene, alkenylene or arylene; each R ⁇ is independently H, or a moiety of formula OH[(CH2) x O] n , wherein x is from about 1 to about 8 and n is from about 10 to about 50; w is 0 or 1; x+y+z is from about 5 to about 30; and B represents a continuation of this structure by branching; and wherein said polyamine before alkylation has an average molecular weight of from about 300 to about 1,200.
  • Rl is C2-C4 alkylene, more preferably ethylene; R ⁇ is
  • n is from about 15 to about 30, more preferably n is about 20.
  • the average Molecular Weight of the polyamine before alkylation is from about 300 to about 1200, more preferably from about 500 to about 900, still more preferably from about 600 to about 700, even more preferably from about 600 to about 650.
  • Ri is C2-C4 alkylene, more preferably ethylene;
  • R2 is OH[CH2CH2 ⁇ ] n , wherein n is from about 10 to about 20, more preferably n is about 15.
  • the average Molecular Weight of the polyamine before alkylation is from about 100 to about 300, more preferably from about 150 to about 250, even more preferably from about 180 to about 200.
  • Polyamide-Polyamines - The polyamide-polyamines useful herein will generally comprise from about 0.1% to 8% by the weight of the composition. More preferably, such polyamide-polyamine materials will comprise from about 0.5% to 4% by weight of the compositions herein. Most preferably, these polyamide-polyamines will comprise from about 1% to 3% by weight of the composition.
  • polyamide-polyamine materials used in this invention are those which have repeating, substituted amido-amine units which conespond to the general Structural Formula No. I as follows:
  • R ⁇ , R2 and R5 are each independently C1.4 alkylene
  • R3 is H, epichlorohydrin, an azetidinium group, an epoxypropyl group or a dimethylaminohydroxypropyl group
  • R4 can be H, C ⁇ . ⁇ alkyl, C ⁇ . ⁇ alkaryl, or aryl.
  • R4 may also be any of the foregoing groups condensed with
  • R ⁇ is preferably butylene, and R2 and R5 are preferably ethylene.
  • R3 is preferably epichlorohydrin.
  • R4 is preferably H.
  • the polyamide-polyamine materials useful herein can be prepared by reacting polyamines such as diethylenetriamine, triethylenetetraamine, tetraethylenepentamine or dipropylenetriamine with C 2 -C ⁇ 2 dicarboxylic acids such as oxalic, succinic, glutaric, adipic and diglycolic acids. Such materials may then be further derivatized by reaction with, for example, epichlorohydrin. Preparation of such materials is described in greater detail in Keim, U.S. Patent 2,296,116, Issued February 23, 1960; Keim, U.S.
  • the polyamide-polyamine agents prefened for use herein are commercially marketed by Hercules, Inc. under the tradename Kymene® . Especially useful are
  • Kymene 557H® and Kymene 557LX® which are epichlorohydrin adducts of polyamide- polyamines which are the reaction products of diethyl enetriamine and adipic acid.
  • Other suitable materials are those marketed by Hercules under the tradenames Reten® and
  • Cartaretin® These polyamide-polyamine materials are marketed in the form of aqueous suspensions of the polymeric material containing, for example, about 12.5% by weight of solids.
  • Detersive Amine - Suitable amine surfactants for use herein include detersive amines according to the formula:
  • R4 wherein R ⁇ is a Cg-C ⁇ 2 alkyl group; n is from about 2 to about 4, X is a bridging group which is selected from NH, CONH, COO, or O or X can be absent; and R3 and R4 are individually selected from H, -C4 alkyl, or (CH -CH -0(R5)) wherein R5 is H or methyl.
  • Prefened amines include the following:
  • the amine is described by the formula: R 1 -C(0)-NH-(CH 2 ) 3 -N(CH 3 ) 2 wherein R ⁇ is Cg-C ⁇ 2 alkyl.
  • Particularly prefened amines include those selected from the group consisting of octyl amine, hexyl amine, decyl amine, dodecyl amine, C -C ⁇ 2 bis(hydroxyethyl)amine, Cg-C ⁇ 2 bis(hydroxyisopropyl)amine, and Cg-Cj amido-propyl dimethyl amine, and mixtures.
  • the detersive amines comprise from about 0.1% to about 10%, preferably from about 0.5% to about 5%, by weight of the composition.
  • Quaternary Ammonium Surfactants from about 1% to about 6% of a quaternary ammonium surfactant having the formula
  • R3 R2 wherein R ⁇ and R2 are individually selected from the group consisting of C1-C4 alkyl, C1-C4 hydroxy alkyl, benzyl, and -(C2H4 ⁇ ) x H where x has a value from about 2 to about
  • R3 and R4 are each a Cg-C ⁇ alkyl or (2) R3 is a Cg-Ci g alkyl, and R4 is selected from the group consisting of CJ -CJO alkyl, CJ -CI Q hydroxy alkyl, benzyl, and -(C2H4 ⁇ ) x H where x has a value from 2 to 5.
  • Preferred quaternary ammonium surfactants are the chloride, bromide, and methylsulfate salts.
  • Examples of prefened mono-long chain alkyl quaternary ammonium surfactants are those wherein R ⁇ , R 2 , and R4 are each methyl and R3 is a Cg-Ci g alkyl; or wherein R3 is Cg_ ⁇ g alkyl and R ⁇ , R 2 , and R4 are selected from methyl and hydroxy- alkyl moieties.
  • ADOGEN 412TM a lauryl trimethyl ammonium chloride commercially available from Witco, is also prefened. Even more highly prefened are the lauryl trimethyl ammonium chloride and myristyl trimethyl ammonium chloride.
  • Alkoxylated quaternary ammonium (AQA) surfactants useful in the present invention are of the general formula:
  • Ri is an alkyl or alkenyl moiety containing from about 8 to about 18 carbon atoms, preferably 10 to about 16 carbon atoms, most preferably from about 10 to about 14 carbon atoms;
  • R ⁇ and R ⁇ ' are each independently alkyl groups containing from one to about three carbon atoms, preferably methyl;
  • R ⁇ and R ⁇ can vary independently and are selected from hydrogen (prefened), methyl and ethyl,
  • X" is an anion such as chloride, bromide, methylsulfate, sulfate, or the like, to provide electrical neutrality;
  • A is selected from C1 -C4 alkoxy, especially ethoxy (i.e., -CH2CH2O-), propoxy, butoxy and mixtures thereof;
  • p is from 2 to about 30, preferably 2 to about 15, most preferably 2 to about 8; and for formula II, p is from 1 to about 30, preferably 1 to about 4 and q is from 1 to about 30, preferably 1
  • quaternary surfactants include the ammonium surfactants such as alkyldimethylammonium halogenides, and those surfactants having the formula: [R2(OR3) y ][R4(OR3) y ] 2 R5N+X- wherein R ⁇ is an alkyl or alkyl benzyl group having from about 8 to about 18 carbon atoms in the alkyl chain, each R ⁇ is selected from the group consisting of -CH2CH2-, -
  • each R 4 is selected from the group consisting of C1-C4 alkyl, C1-C4 hydroxyalkyl, benzyl, ring structures formed by joining the two R 4 groups, -CH 2 CHOHCHOHCOR 6 CHOH-
  • R ⁇ is any hexose or hexose polymer having a molecular weight less than about 1000, and hydrogen when y is not O;
  • R ⁇ is the same as R 4 or is an alkyl chain wherein the total number of carbon atoms of R ⁇ plus R ⁇ is not more than about 18; each y is from 0 to about 10 and the sum of the y values is from 0 to about 15; and
  • X is any compatible anion.
  • Polyethoxylated-Polyamine Polymers include polyethoxyated-polyamine polymers (PPP).
  • the prefened polyethoxylated-polyamines useful herein are generally polyalkyleneamines (PAA's), polyalkyleneimines (PAI's), preferably polyethyleneamine (PEA's), polyethyleneimines (PEI's).
  • PAA polyalkyleneamine
  • PEA's polyethyleneamine
  • PEI's polyethyleneimines
  • a common polyalkyleneamine (PAA) is tetrabutylenepentamine. PEA's are obtained by reactions involving ammonia and ethylene dichloride, followed by fractional distillation. The common PEA's obtained are triethylenetetramine (TETA) and teraethylenepentamine (TEPA).
  • TETA triethylenetetramine
  • TEPA teraethylenepentamine
  • the cogenerically derived mixture does not appear to separate by distillation and can include other materials such as cyclic amines and particularly piperazines. There can also be present cyclic amines with side chains in which nitrogen atoms appear. See U.S. Patent 2,792,372, Dickinson, issued May 14, 1957, which describes the preparation of PEA's.
  • Polyethoxylated polyamines can be prepared, for example, by polymerizing ethyleneimine in the presence of a catalyst such as carbon dioxide, sodium bisulfite, sulfuric acid, hydrogen peroxide, hydrochloric acid, acetic acid, etc.
  • polyethoxyated-polyamine polymers useful for this invention are alkoxylated quaternary diamines of the general formula:
  • R is selected from linear or branched C 2 -C ⁇ 2 alkylene, C3-C12 hydroxyalkylene,
  • C4-C12 dihydroxyalkylene Cg-Ci2 dialkylarylene, [(CH2CH2 ⁇ ) q CH CH 2 ]- and - CH2CH(OH)CH 2 0-(CH2CH2 ⁇ )qCH 2 CH(OH)CH2]- where q is from about 1 to about
  • Each R ⁇ is independently selected from C1-C4 alkyl, C7-C12 alkylaryl, or A.
  • A is of the formula:
  • R3 is selected from H or C1-C3 alkyl, n is from about 5 to about 100, and B is selected from H, C1-C4 alkyl, acetyl, or benzoyl; X is a water soluble anion.
  • R is selected from C4 to Cg alkylene
  • R ⁇ is selected from C1-C2 alkyl or C 2 -C3 hydroxyalkyl
  • A is: (CH-CH 2 -0) n H
  • R3 where R3 is selected from H or methyl, and n is from about 10 to about 50.
  • R is linear or branched Cg
  • R ⁇ is methyl
  • R3 is H
  • n is from about 20 to about 50.
  • Additional alkoxylated quaternary polyamine dispersants which can be used in the present invention are of the general formula:
  • R is selected from linear or branched C 2 -C ⁇ 2 alkylene, C3-C ⁇ hydroxyalkylene,
  • Each R is independently selected from C1-C4 alkyl, C7-C ⁇ 2 alkylaryl, or A.
  • R ⁇ may be absent on some nitrogens; however, at least three nitrogens must be quaternized.
  • A is of the formula: (CH-CH 2 -0) n B
  • R3 where R3 is selected from H or C1-C3 alkyl, n is from about 5 to about 100 and B is selected from H, C1-C4 alkyl, acetyl, or benzoyl; m is from about 0 to about 4, and X is a water soluble anion.
  • R is selected from C4 to Cg alkylene
  • Ri is selected from Ci-C 2 alkyl or C 2 -C3 hydroxyalkyl
  • A is:
  • R 3 where R3 is selected from H or methyl, and n is from about 10 to about 50; and m is 1.
  • R is linear or branched Cg, R ⁇ is methyl, R3 is
  • n is from about 20 to about 50, and m is 1.
  • the levels of these polyethoxyated-polyamine polymers used can range from about 0.1% to about 10%, typically from about 0.4% to about 5%, by weight. These polyethoxyated-polyamine polymers can be synthesized following the methods outline in U.S. Patent No. 4,664,848, or other ways known to those skilled in the art.
  • Anionic Surfactant - The anionic surfactant component contains alkyl polyethoxylate sulfates and may contain other non-soap anionic surfactants or mixtures thereof.
  • anionic surfactants useful herein are disclosed in U.S. Patent No. 4,285,841, Banat et al, issued August 25, 1981, and in U.S. Patent No. 3,919,678, Laughlin et al, issued December 30, 1975, both inco ⁇ orated herein by reference.
  • Useful anionic surfactants include the water-soluble salts, particularly the alkali metal, ammonium and alkylolammonium (e.g., monoethanolammonium or triethanolammonium) salts, of organic sulfuric reaction products having in their molecular structure an alkyl group containing from about 10 to about 20 carbon atoms and a sulfonic acid or sulfuric acid ester group.
  • water-soluble salts particularly the alkali metal, ammonium and alkylolammonium (e.g., monoethanolammonium or triethanolammonium) salts, of organic sulfuric reaction products having in their molecular structure an alkyl group containing from about 10 to about 20 carbon atoms and a sulfonic acid or sulfuric acid ester group.
  • alkyl is the alkyl portion of aryl groups.
  • alkyl sulfates especially those obtained by sulfating the higher alcohols (Cg-C ⁇ g carbon atoms) such as those produced by reducing the glycerides of tallow or coconut oil.
  • alkyl sulfates especially those obtained by sulfating the higher alcohols (Cg-C ⁇ g carbon atoms) such as those produced by reducing the glycerides of tallow or coconut oil.
  • linear straight chain alkylbenzene sulfonates in which the average number of carbon atoms in the alkyl group is from about 11 to 13, abbreviated as Cn-C ⁇ 3 LAS.
  • anionic surfactants herein are the water-soluble salts of alkyl phenol ethylene oxide ether sulfates containing from about 1 to about 4 units of ethylene oxide per molecule and from about 8 to about 12 carbon atoms in the alkyl group.
  • Other useful anionic surfactants herein include the water-soluble salts of esters of ⁇ -sulfonated fatty acids containing from about 6 to 20 carbon atoms in the fatty acid group and from about 1 to 10 carbon atoms in the ester group; water-soluble salts of 2-acyloxy- alkane-1 -sulfonic acids containing from about 2 to 9 carbon atoms in the acyl group and from about 9 to about 23 carbon atoms in the alkane moiety; water-soluble salts of olefin sulfonates containing from about 12 to 24 carbon atoms; and ⁇ -alkyloxy alkane sulfonates containing from about 1 to 3 carbon atoms in the alkyl group and from about 8 to 20 carbon atoms in the alkane moiety.
  • alkyl polyethoxylate sulfates useful herein are of the formula
  • R is an alkyl chain having from about 10 to about 22 carbon atoms, saturated or unsaturated
  • M is a cation which makes the compound water-soluble, especially an alkali metal, ammonium or substituted ammonium cation, and x averages from about 0.5 to about 15.
  • Prefened alkyl sulfate surfactants are the non-ethoxylated Ci2-15 primary and secondary alkyl sulfates. Under cold water washing conditions, i.e., less than abut 65°F (18.3°C), it is prefened that there be a mixture of such ethoxylated and non-ethoxylated alkyl sulfates.
  • the anionic surfactant component herein comprises fatty acids.
  • fatty acids include saturated and/or unsaturated fatty acids obtained from natural sources or synthetically prepared.
  • fatty acids include capric, lauric, myristic, palmitic, stearic, arachidic, and behenic acid.
  • Other fatty acids include palmitoleic, oleic, linoleic, linolenic, and ricinoleic acid.
  • Nonionic Detergent Surfactants - Suitable nonionic detergent surfactants are generally disclosed in U.S. Patent 3,929,678, Laughlin et al, issued December 30, 1975, and U.S. Patent No. 4,285,841, Banat et al, issued August 25, 1981.
  • Exemplary, non- limiting classes of useful nonionic surfactants include: Cg-C ⁇ g alkyl ethoxylates ("AE"), with EO about 1-22, including the so-called nanow peaked alkyl ethoxylates and Cg-C ⁇ 2 alkyl phenol alkoxylates (especially ethoxylates and mixed ethoxy/propoxy), alkyl dialkyl amine oxide, alkanoyl glucose amide, and mixtures thereof.
  • AE Cg-C ⁇ g alkyl ethoxylates
  • EO alkyl ethoxylates
  • alkyl dialkyl amine oxide alkanoyl glucose amide
  • compositions of the present invention will preferably contain up to about 10%, preferably from 0% to about 5%, more preferably from 0% to about 3%, by weight of an nonionic surfactant.
  • an nonionic surfactant Preferred are the ethoxylated alcohols and ethoxylated alkyl phenols of the formula R(OC 2 H4) n OH, wherein R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 15 carbon atoms and alkyl phenyl radicals in which the alkyl groups contain from about 8 to about 12 carbon atoms, and the average value of n is from about 5 to about 15.
  • R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 15 carbon atoms and alkyl phenyl radicals in which the alkyl groups contain from about 8 to about 12 carbon atoms, and the average value of n is from about 5 to about 15.
  • ethoxylated alcohols having an average of from about 10 to abut 15 carbon atoms in the alcohol and an average degree of ethoxylation of from about 6 to about 12 moles of ethylene oxide per mole of alcohol.
  • nonionic surfactants for use herein include:
  • the polyethylene, polypropylene, and polybutylene oxide condensates of alkyl phenols are preferred. These compounds include the condensation products of alkyl phenols having an alkyl group containing from about 6 to about 12 carbon atoms in either a straight chain or branched chain configuration with the alkylene oxide.
  • the ethylene oxide is present in an amount equal to from about 5 to about 25 moles of ethylene oxide per mole of alkyl phenol.
  • nonionic surfactants of this type include Igepal® CO-630, marketed by the GAF Co ⁇ oration; and Triton® X-45, X-114, X-100, and X- 102, all marketed by the Rohm & Haas Company. These compounds are commonly refened to as alkyl phenol alkoxylates, (e.g., alkyl phenol ethoxylates).
  • the condensation products of aliphatic alcohols with from about 1 to about 25 moles of ethylene oxide can either be straight or branched, primary or secondary, and generally contains from about 8 to about 22 carbon atoms. Particularly prefened are the condensation products of alcohols having an alkyl group containing from about 10 to about 20 carbon atoms with from about 2 to about 18 moles of ethylene oxide per mole of alcohol. Examples of commercially available nonionic surfactants of this type include Tergitol® 15-S-9 (the condensation product of
  • Neodol® 45-9 (the condensation product of C14-C15 linear alcohol with 9 moles of ethylene oxide), Neodol® 23-6.5 (the condensation product of C ⁇ 2 -Ci3 linear alcohol with 6.5 moles of ethylene oxide), Neodol® 45-7 (the condensation product of C14-C15 linear alcohol with 7 moles of ethylene oxide), Neodol® 45-4 (the condensation product of C14-C15 linear alcohol with 4 moles of ethylene oxide), marketed by Shell Chemical
  • Nonionic surfactants include Dobanol 91-8® marketed by Shell Chemical Co. and Genapol UD-080® marketed by Hoechst. This category of nonionic surfactant is refened to generally as "alkyl ethoxylates.”
  • the hydrophobic portion of these compounds preferably has a molecular weight of from about 1500 to about 1800 and exhibits water insolubility.
  • polyoxyethylene moieties to this hydrophobic portion tends to increase the water solubility of the molecule as a whole, and the liquid character of the product is retained up to the point where the polyoxyethylene content is about 50% of the total weight of the condensation product, which conesponds to condensation with up to about 40 moles of ethylene oxide.
  • examples of compounds of this type include certain of the commercially-available Pluronic® surfactants, marketed by BASF.
  • Pluronic® surfactants marketed by BASF.
  • the hydrophobic moiety of these products consists of the reaction product of ethylenediamine and excess propylene oxide, and generally has a molecular weight of from about 2500 to about 3000.
  • This hydrophobic moiety is condensed with ethylene oxide to the extent that the condensation product contains from about 40% to about 80% by weight of polyoxyethylene and has a molecular weight of from about 5,000 to about 11,000.
  • nonionic surfactant include certain of the commercially available Tetronic® compounds, marketed by BASF.
  • Semi-polar nonionic surfactants are a special category of nonionic surfactants which include water-soluble amine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; water- soluble phosphine oxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and 2 moieties selected from the group consisting of alkyl groups and hydroxyalkyl groups containing from about 1 to about 3 carbon atoms; and water-soluble sulfoxides containing one alkyl moiety of from about 10 to about 18 carbon atoms and a moiety selected from the group consisting of alkyl and hydroxyalkyl moieties of from about 1 to about 3 carbon atoms.
  • Semi-polar nonionic detergent surfactants include the amine oxide surfactants having the formula
  • R 3 (OR4) X N(R5) 2 wherein R 3 is an alkyl, hydroxyalkyl, or alkyl phenyl group or mixtures thereof containing from about 8 to about 22 carbon atoms; R 4 is an alkylene or hydroxyalkylene group containing from about 2 to about 3 carbon atoms or mixtures thereof; x is from 0 to about 3; and each R ⁇ is an alkyl or hydroxyalkyl group containing from about 1 to about 3 carbon atoms or a polyethylene oxide group containing from about 1 to about 3 ethylene oxide groups.
  • the R ⁇ groups can be attached to each other, e.g., through an oxygen or nitrogen atom, to form a ring structure.
  • amine oxide surfactants in particular include C ⁇ Q-Cig alkyl dimethyl amine oxides and Cg-C ⁇ 2 alkoxy ethyl dihydroxy ethyl amine oxides.
  • Any reducing saccharide containing 5 or 6 carbon atoms can be used, e.g., glucose, galactose and galactosyl moieties can be substituted for the glucosyl moieties.
  • the hydrophobic group is attached at the 2-, 3-, 4-, etc. positions thus giving a glucose or galactose as opposed to a glucoside or galactoside.
  • the intersaccharide bonds can be, e.g., between the one position of the additional saccharide units and the 2-, 3-, 4-, and or 6- positions on the preceding saccharide units.
  • a polyalkylene-oxide chain joining the hydrophobic moiety and the polysaccharide moiety.
  • the prefe ⁇ ed alkyleneoxide is ethylene oxide.
  • Typical hydrophobic groups include alkyl groups, either saturated or unsaturated, branched or unbranched containing from about 8 to about 18, preferably from about 10 to about 16, carbon atoms.
  • the alkyl group is a straight chain saturated alkyl group.
  • the alkyl group can contain up to about 3 hydroxy groups and/or the polyalkyleneoxide chain can contain up to about 10, preferably less than 5, alkyleneoxide moieties.
  • Suitable alkyl polysaccharides are octyl, nonyl, decyl, undecyldodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, and octadecyl, di-, tri-, tetra-, penta-, and hexaglucosides, galactosides, lactosides, glucoses, fructosides, fructoses and or galactoses.
  • Suitable mixtures include coconut alkyl, di-, tri-, tetra-, and pentaglucosides and tallow alkyl tetra-, penta-, and hexa-glucosides.
  • the prefened alkylpolyglycosides have the formula
  • R2 ⁇ (C n H 2n O) t (glycosyl) x wherein R ⁇ is selected from the group consisting of alkyl, alkyl-phenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof in which the alkyl groups contain from about 10 to about 18, preferably from about 12 to about 14, carbon atoms; n is 2 or 3, preferably 2; t is from 0 to about 10, preferably 0; and x is from about 1.3 to about 10, preferably from about 1.3 to about 3, most preferably from about 1.3 to about 2.7.
  • the glycosyl is preferably derived from glucose.
  • the alcohol or alkylpolyethoxy alcohol is formed first and then reacted with glucose, or a source of glucose, to form the glucoside (attachment at the 1 -position).
  • the additional glycosyl units can then be attached between their 1 -position and the preceding glycosyl units 2-, 3-, 4- and/or 6-position, preferably predominantly the 2-position.
  • Fatty acid amide surfactants having the formula: O I I
  • R 6 -C-N(R 7 ) 2 wherein R ⁇ is an alkyl group containing from about 7 to about 21 (preferably from about 9 to about 17) carbon atoms and each R 7 is selected from the group consisting of hydrogen, C1-C4 alkyl, -C4 hydroxyalkyl, and -(C2H4 ⁇ ) x H where x varies from about 1 to about 3.
  • Prefened amides are Cg-C 2 o ammonia amides, monoethanolamides, dietha- nolamides, and isopropanolamides.
  • Cationic/amphoteric - Non-quaternary, cationic detersive surfactants can also be included in detergent compositions of the present invention.
  • Cationic surfactants useful herein are described in U.S. Patent 4,228,044, Cambre, issued October 14, 1980.
  • Ampholytic surfactants can be inco ⁇ orated into the detergent compositions hereof. These surfactants can be broadly described as aliphatic derivatives of secondary or tertiary amines, or aliphatic derivatives of heterocyclic secondary and tertiary amines in which the aliphatic radical can be straight chain or branched.
  • One of the aliphatic substituents contains at least about 8 carbon atoms, typically from about 8 to about 18 carbon atoms, and at least one contains an anionic water-solubilizing group, e.g., carboxy, sulfonate, sulfate. See U.S. Patent No.
  • Prefe ⁇ ed amphoteric include C ⁇ 2 -Ci g alkyl ethoxylates ("AE") including the so-called nanow peaked alkyl ethoxylates and Cg-Ci 2 alkyl phenol alkoxylates (especially ethoxylates and mixed ethoxy/propoxy), C ⁇ 2 -C ⁇ g betaines and sulfobetaines ("sultaines”), C ⁇ Q-Ci amine oxides, and mixtures thereof.
  • AE alkyl ethoxylates
  • sulfobetaines sulfobetaines
  • Polyhydroxy Fatty Acid Amide Surfactant may also contain polyhydroxy fatty acid amide surfactant.
  • the polyhydroxy fatty acid amide surfactant component comprises compounds of the structural formula:
  • Ri is H, C1 -C4 hydrocarbyl, 2-hydroxy ethyl, 2-hydroxy propyl, or a mixture thereof, preferably C1 -C4 alkyl, more preferably C ⁇ or C 2 alkyl, most preferably C ⁇ alkyl
  • R ⁇ is a C5-C31 hydrocarbyl, preferably straight chain C7-C19 alkyl or alkenyl, more preferably straight chain C9-C17 alkyl or alkenyl, most preferably straight chain C11-C15 alkyl or alkenyl, or mixtures thereof; and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof.
  • Z preferably will be derived from a reducing sugar in a reductive amination reaction; more preferably Z will be a glycityl.
  • Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose, and xylose.
  • high dextrose com syrup, high fructose corn syrup, and high maltose corn syrup can be utilized as well as the individual sugars listed above.
  • These corn syrups may yield a mix of sugar components for Z. It should be understood that it is by no means intended to exclude other suitable raw materials.
  • Z preferably will be selected from the group consisting of -CH 2 -
  • R' can be, for example, N-methyl, N-ethyl, N-propyl, N-isopropyl, N-butyl, N-2- hydroxy ethyl, or N-2-hydroxy propyl.
  • R2-CO-N ⁇ can be, for example, cocamide, stearamide, oleamide, lauramide, myristamide, capricamide, palmitamide, tallowamide, etc.
  • Z can be 1 -deoxyglucityl, 2-deoxyfructityl, 1-deoxymaltityl, 1-deoxylactityl, 1- deoxygalactityl, 1-deoxymannityl, 1-deoxymaltotriotityl, etc.
  • polyhydroxy fatty acid amides are known in the art. In general, they can be made by reacting an alkyl amine with a reducing sugar in a reductive amination reaction to form a conesponding N-alkyl polyhydroxyamine, and then reacting the N-alkyl polyhydroxyamine with a fatty aliphatic ester or triglyceride in a condensation/amidation step to form the N-alkyl, N-polyhydroxy fatty acid amide product.
  • Processes for making compositions containing polyhydroxy fatty acid amides are disclosed, for example, in G.B. Patent Specification 809,060, published February 18, 1959, by Thomas Hedley & Co., Ltd., U.S.
  • Granular and/or Powder laundry detergent compositions preferably comprise, in addition to the particulate solids of the present invention, one or more cleaning adjunct materials as described herein.
  • CLEANING ADJUNCT MATERIALS The laundry detergent compositions of the present invention as described hereinbefore may optionally include, in addition to the particulate solids of the present invention, cleaning adjunct materials described below.
  • Biodegradably branched surfactants The present invention includes important embodiments comprising at least one biodegradably branched and/or crystallinity disrupted and/or mid-chain branched surfactant or surfactant mixture.
  • biodegradably branched and/or crystallinity disrupted and/or mid-chain branched indicate that such surfactants or surfactant mixtures are characterized by the presence of surfactant molecules having a moderately non-linear hydrophobe; more particularly, wherein the surfactant hydrophobe is not completely linear, on one hand, nor is it branched to an extent that would result in unacceptable biodegradation.
  • the prefened biodegradably branched surfactants are distinct from the known commercial LAS, ABS, Exxal, Lial, etc. types, whether branched or unbranched.
  • the biodegradably branched materials comprise particularly positioned light branching, for example from about one to about three methyl, and/or ethyl, and/or propyl or and/or butyl branches in the hydrophobe, wherein the branching is located remotely from the surfactant headgroup, preferably toward the middle of the hydrophobe.
  • branching is located remotely from the surfactant headgroup, preferably toward the middle of the hydrophobe.
  • Typically from one to three such branches can be present on a single hydrophobe, preferably only one.
  • Such biodegradably branched surfactants can have exclusively linear aliphatic hydrophobes, or the hydrophobes can include cycloaliphatic or aromatic substitution.
  • Highly prefened are MCB analogs of common linear alkyl sulfate, linear alkyl poly(alkoxylate) and linear alkylbenzenesulfonate surfactants, said surfactant suitably being selected from mid-chain-CpC 4 -branched C - C ⁇ 8 -alkyl sulfates, mid-chain-C ⁇ -C 4 -branched C 8 -C ⁇ 8 -alkyl ethoxylated, propoxylated or butoxylated alcohols, mid-chain-C ⁇ -C 4 -branched C 8 -C ⁇ 8 -alkyl ethoxysulfates, mid-chain- C ⁇ -C 4 -branched C 8 -C ⁇ 6 -alkyl benzenesulfonates and mixtures thereof.
  • the surfactants can in general be in acid or salt, for example sodium, potassium, ammonium or substituted ammonium, form.
  • the biodegradably branched surfactants offer substantial improvements in cleaning performance and/or usefulness in cold water and/or resistance to water hardness and/or economy of utilization.
  • Such surfactants can, in general, belong to any known class of surfactants, e.g., anionic, nonionic, cationic, or zwitterionic.
  • the biodegradably branched surfactants are synthesized through processes of Procter & Gamble, Shell, and Sasol.
  • MCB nonionic surfactants including MCB primary alkyl polyoxyalkylenes of formula (1):
  • R, R and R are not all hydrogen and, when z is 1, at least R or R 1 is not hydrogen; w is an integer of 0-13; x is an integer of 0-13; y is an integer of 0-13; z is an integer of at least 1; w+x+y+z is 8-14; and EO/PO are alkoxy moieties preferably selected from ethoxy, propoxy and mixed ethoxy/propoxy groups, where m is at least 1, preferably 3-30, more preferably 5-20, most preferably 5-15.
  • Such MCB nonionics can alternately include butylene oxide derived moieties, and the -OH moiety can be replaced by any of the well-known end-capping moieties used for conventional nonionic surfactants.
  • W097/38957 A also discloses (i) production of MCB alkyl sulphate surfactants by sulphating (I) or (II); (ii) preparation of MCB alkylethoxy sulphates which comprises ethoxylating and then sulphating (I) or (II); (iii) preparation of MCB alkyl carboxylate surfactants which comprises oxidising (I) or (II) or their aldehyde intermediates and (iv) preparation of MCB acyl taurate, MCB acyl isethionate, MCB acyl sarcosinate or MCB acyl N-methylglucamide surfactants using the branched alkyl carboxylates as feedstock.
  • W097/38956 A published 10/23/97 discloses the preparation of mid- to near mid- chain branched alpha olefins which is effected by: (a) preparing a mixture of carbon monoxide and hydrogen; (b) reacting this mixture in the presence of a catalyst under Fischer-Tropsch conditions to prepare a hydrocarbon mixture comprising the described olefins; and (c) separating the olefins from the hydrocarbon mixture.
  • W097/38956 A further discloses the preparation of mid- to near mid-chain branched alcohols by reacting the olefins described with CO/H 2 under Oxo conditions.
  • These alcohols can be used to prepare (1) MCB sulphate surfactants by sulphating the alcohols; (2) MCB alkyl ethoxy sulphates by ethoxylating, then sulphating, the alcohols; or (3) branched alkyl carboxylate surfactants by oxidising the alcohols or their aldehyde intermediates.
  • the branched carboxylates formed can be used as a feedstock to prepare branched acyl taurate, acyl isethionate, acyl sarcosinate or acyl N-methylglucamide surfactants, etc.
  • WO97/39091 A published 10/23/97 includes disclosure of a detergent surfactant composition comprising at least 0.5 (especially 5, more especially 10, most especially 20) wt% of longer alkyl chain, MCB surfactant of formula (I).
  • WO97/39089 A published 10/23/97 includes disclosure of liquid cleaning compositions comprising: (a) as part of surfactant system 0.1-50 (especially 1-40) wt % of a mid-chain branched surfactant of formula (I); (b) as the other part of the surfactant system 0.1-50 wt% of co-surfactant(s); (c) 1-99.7 t% of a solvent; and (d) 0.1-75 wt% of adjunct ingredients.
  • the surfactant composition has an average total number of C atoms in the A-X moiety of 14.5-17.5 (especially 15-17); and B is a hydrophilic moiety selected from sulphates, polyoxyalkylene (especially polyoxyethylene and polyoxypropylene) and alkoxylated sulphates.
  • WO97/39088 A published 10/23/97 includes disclosure of a surfactant composition comprising 0.001-100% of MCB primary alkyl alkoxylated sulphate(s) of formula (I):
  • WO97/39088 A also discloses (1) a surfactant composition comprising a mixture of branched primary alkyl sulphates of formula (I) as above.
  • M is a water-soluble cation;
  • a detergent composition comprising: (a) 0.001-99% of MCB primary alkyl alkoxylated sulphate of formula (in) and/or (IV).
  • WO97/39087 A published 10/23/97 includes disclosure of a surfactant composition
  • a method for manufacturing longer chain alkyl alkoxylated sulphate surfactant mixture compositions comprising alkoxylating the specified long chain aliphatic alcohol mixture; sulphating the resulting polyoxyalkylene alcohol with S0 ; and neutralising the resulting alkyl alkoxylate sulphate acid.
  • the alkyl alkoxylated sulphates may be produced directly from the polyoxyalkylene alcohol by sulphating with S0 and neutralising.
  • WO 98/23566 A Shell, published 06/04/98 discloses branched primary alcohol compositions having 8-36 C atoms and an average number of branches per mol of 0.7-3 and comprising ethyl and methyl branches.
  • a branched primary alkoxylate composition preparable by reacting a branched primary alcohol composition as above with an oxirane compound
  • a detergent composition comprising: (a) surfactant(s) selected from branched primary alcohol alkoxylates as in (1), branched primary alcohol sulphates as in (2), and branched alkoxylated primary alcohol sulphates as in (3); (b) a builder; and (c) optionally additive(s) selected from foam control agents,, enzymes, bleaching agents, bleach activators, optical brighteners, co-builders, hydrotropes
  • Biodegradably branched surfactants useful herein also include the modified alkylaromatic, especially modified alkylbenzenesulfonate surfactants described in copending commonly assigned patent applications (P&G Case Nos. 7303P, 7304P).
  • these surfactants include (P&G Case 6766P) alkylarylsulfonate surfactant systems comprising from about 10% to about 100% by weight of said surfactant system of two or more crystallinity-disrupted alkylarylsulfonate surfactants of formula (B-Ar-
  • D)a(M c l + )b wherein D is SO3 " , M is a cation or cation mixture, q is the valence of said cation, a and b are numbers selected such that said composition is electroneutral; Ar is selected from benzene, toluene, and combinations thereof; and B comprises the sum of at least one primary hydrocarbyl moiety containing from 5 to 20 carbon atoms and one or more crystallinity-disrupting moieties wherein said crystal ⁇ inity-disrupting moieties interrupt or branch from said hydrocarbyl moiety; and wherein said alkylarylsulfonate surfactant system has crystallinity disruption to the extent that its Sodium Critical Solubility Temperature, as measured by the CST Test, is no more than about 40°C and wherein further said alkylarylsulfonate surfactant system has at least one of the following properties: percentage biodegradation, as measured by the modified SCAS test, that exceeds te
  • compositions also include (P&G Case 7303P) surfactant mixtures comprising (preferably, consisting essentially of): (a) from about 60% to about 95% by weight (preferably from about 65% to about 90%, more preferably from about 70% to about 85%) of a mixture of branched alkylbenzenesulfonates having formula (I):
  • L is an acyclic aliphatic moiety consisting of carbon and hydrogen and having two methyl termini
  • said mixture of branched alkylbenzenesulfonates contains two or more (preferably at least three, optionally more) of said compounds differing in molecular weight of the anion of said formula (I) and wherein said mixture of branched alkylbenzenesulfonates is characterized by an average carbon content of from about 10.0 to about 14.0 carbon atoms (preferably from about 11.0 to about 13.0, more preferably from about 11.5 to about 12.5), wherein said average carbon content is based on the sum of carbon atoms in R 1 , L and R 2 , (preferably said sum of carbon atoms in R 1 , L and R 2 is from 9 to 15, more preferably, 10 to 14) and further, wherein L has no substituents other than A, R 1 and R 2 ; M is a cation or cation mixture (preferably selected from H, Na, K, Ca,
  • Y is an unsubstituted linear aliphatic moiety consisting of carbon and hydrogen having two methyl termini, and wherein Y has an average carbon content of from about 10.0 to about 14.0 (preferably from about 11.0 to about 13.0, more preferably 11.5 to 12.5 carbon atoms); (preferably said mixture of nonbranched alkylbenzenesulfonates is further characterized by a sum of carbon atoms in Y, of from 9 to 15, more preferably 10 to 14); and wherein said composition is further characterized by a 2/3-phenyl index of from about 350 to about 10,000 (preferably from about 400 to about 1200, more preferably from about 500 to about 700) (and also preferably wherein said surfactant mixture has a 2-methyl-2-phenyl index of less than about 0.3, preferably less than about 0.2, more preferably less than about 0.1, more preferably still, from 0 to 0.05).
  • surfactant mixtures comprising the product of a process comprising the steps of: alkylating benzene with an alkylating mixture; sulfonating the product of (I); and neutralizing the product of (II); wherein said alkylating mixture comprises: (a) from about 1% to about 99.9%, by weight of branched C 7 -C 20 monoolefins, said branched monoolefins having structures identical with those of the branched monoolefins formed by dehydrogenating branched parafins of formula R ⁇ R 2 wherein L is an acyclic aliphatic moiety consisting of carbon and hydrogen and containing two terminal methyls; R 1 is d to C 3 alkyl; and R 2 is selected from H and Ci to C 3 alkyl; and (b) from about 0.1% to about 85%, by weight of C7-C20 linear ali
  • Bleaching System The laundry compositions of the present invention may comprise a bleaching system.
  • Bleaching systems typically comprise a "bleaching agent” (source of hydrogen peroxide) and an "initiator” or “catalyst".
  • bleaching agents will typically be at levels of from about 1%, preferably from about 5% to about 30%, preferably to about 20% by weight of the composition.
  • the amount of bleach activator will typically be from about 0.1%, preferably from about 0.5% to about 60%, preferably to about 40% by weight, of the bleaching composition comprising the bleaching agent-plus-bleach activator.
  • Bleaching Agents Hydrogen peroxide sources are described in detail in the herein inco ⁇ orated Kirk Othmer's Encyclopedia of Chemical Technology, 4th Ed (1992, John Wiley & Sons), Vol. 4, pp. 271-300 "Bleaching Agents (Survey)", and include the various forms of sodium perborate and sodium percarbonate, including various coated and modified forms.
  • the prefened source of hydrogen peroxide used herein can be any convenient source, including hydrogen peroxide itself.
  • perborate e.g., sodium perborate (any hydrate but preferably the mono- or tetra-hydrate), sodium carbonate peroxyhydrate or equivalent percarbonate salts, sodium pyrophosphate peroxyhydrate, urea peroxyhydrate, or sodium peroxide
  • sources of available oxygen such as persulfate bleach (e.g., OXONE, manufactured by DuPont).
  • Sodium perborate monohydrate and sodium percarbonate are particularly prefened. Mixtures of any convenient hydrogen peroxide sources can also be used.
  • a prefened percarbonate bleach comprises dry particles having an average particle size in the range from about 500 micrometers to about 1,000 micrometers, not more than about 10% by weight of said particles being smaller than about 200 micrometers and not more than about 10% by weight of said particles being larger than about 1,250 micrometers.
  • the percarbonate can be coated with a silicate, borate or water- soluble surfactants.
  • Percarbonate is available from various commercial sources such as FMC, Solvay and Tokai Denka.
  • compositions of the present invention may also comprise as the bleaching agent a chlorine-type bleaching material.
  • a chlorine-type bleaching material such agents are well known in the art, and include for example sodium dichloroisocyanurate (“NaDCC").
  • NaDCC sodium dichloroisocyanurate
  • chlorine-type bleaches are less prefened for compositions which comprise enzymes.
  • the peroxygen bleach component in the composition is formulated with an activator (peracid precursor).
  • the activator is present at levels of from about 0.01%, preferably from about 0.5%, more preferably from about 1% to about 15%, preferably to about 10%, more preferably to about 8%, by weight of the composition.
  • Prefened activators are selected from the group consisting of tetraacetyl ethylene diamine (TAED), benzoylcaprolactam (BzCL), 4-nitrobenzoylcaprolactam, 3- chlorobenzoylcaprolactam, benzoyloxybenzenesulphonate (BOBS), nonanoyloxybenzenesulphonate (NOBS), phenyl benzoate (PhBz), decanoyloxybenzenesulphonate (C ⁇ Q- OBS), benzoylvalerolactam (BZVL), octanoyloxybenzenesulphonate (Cg-OBS), perhydrolyzable esters and mixtures thereof, most preferably benzoylcaprolactam and benzoylvalerolactam.
  • Particularly prefened bleach activators in the pH range from about 8 to about 9.5 are those selected having an OBS or VL leaving group.
  • Prefened hydrophobic bleach activators include, but are not limited to, nonanoyloxybenzenesulphonate (NOBS), 4-[N-(nonaoyl) amino hexanoyloxy] -benzene sulfonate sodium salt (NACA-OBS) an example of which is described in U.S. Patent No.
  • NOBS nonanoyloxybenzenesulphonate
  • NACA-OBS 4-[N-(nonaoyl) amino hexanoyloxy] -benzene sulfonate sodium salt
  • the mole ratio of peroxygen bleaching compound (as AvO) to bleach activator in the present invention generally ranges from at least 1:1, preferably from about 20:1, more preferably from about 10:1 to about 1 :1, preferably to about 3:1.
  • Quaternary substituted bleach activators may also be included.
  • the present laundry compositions preferably comprise a quaternary substituted bleach activator (QSBA) or a quaternary substituted peracid (QSP); more preferably, the former.
  • QSBA quaternary substituted bleach activator
  • QSP quaternary substituted peracid
  • Prefened QSBA structures are further described in U.S. 5,686,015 Willey et al, issued November 11, 1997; U.S. 5,654,421 Taylor et al., issued August 5, 1997; U.S. 5,460,747 Gosselink et al., issued October 24, 1995; U.S. 5,584,888 Miracle et al., issued December 17, 1996; and U.S. 5,578,136 Taylor et al., issued November 26, 1996; all of which are inco ⁇ orated herein by reference.
  • bleach activators useful herein are amide-substituted as described in U.S. 5,698,504, U.S. 5,695,679, and U.S. 5,686,014 each of which are cited herein above.
  • Prefened examples of such bleach activators include: (6- octanamidocaproyl)oxybenzenesulfonate,(6-nonanamidocaproyl) oxybenzenesulfonate, ( ⁇ -decanamidocaproyl)oxybenzenesulfonate and mixtures thereof.
  • good bleaching results can be obtained from bleaching systems having with in-use pH of from about 6 to about 13, preferably from about 9.0 to about 10.5.
  • activators with electron- withdrawing moieties are used for near-neutral or sub-neutral pH ranges.
  • Alkalis and buffering agents can be used to secure such pH.
  • Acyl lactam activators as described in U.S. 5,698,504, U.S. 5,695,679 and U.S. 5,686,014, each of which is cited herein above, are very useful herein, especially the acyl caprolactams (see for example WO 94-28102 A) and acyl valerolactams (see U.S. 5,503,639 Willey et al., issued April 2, 1996 inco ⁇ orated herein by reference).
  • compositions and methods may utilize metal-containing bleach catalysts that are effective for use in bleaching compositions. Prefened are manganese and cobalt-containing bleach catalysts.
  • One type of metal-containing bleach catalyst is a catalyst system comprising a transition metal cation of defined bleach catalytic activity, such as copper, iron, titanium, ruthenium tungsten, molybdenum, or manganese cations, an auxiliary metal cation having little or no bleach catalytic activity, such as zinc or aluminum cations, and a sequestrate having defined stability constants for the catalytic and auxiliary metal cations, particularly ethylenediaminetetraacetic acid, ethylenediaminetetra (methylenephosphonic acid) and water-soluble salts thereof.
  • a transition metal cation of defined bleach catalytic activity such as copper, iron, titanium, ruthenium tungsten, molybdenum, or manganese cations
  • an auxiliary metal cation having little or no bleach catalytic activity such as zinc or aluminum cations
  • a sequestrate having defined stability constants for the catalytic and auxiliary metal cations, particularly ethylenediaminetetraacetic acid
  • compositions herein can be catalyzed by means of a manganese compound.
  • a manganese compound Such compounds and levels of use are well known in the art and include, for example, the manganese-based catalysts disclosed in U.S. Patent Nos. 5,576,282; 5,246,621; 5,244,594; 5,194,416; and 5,114,606; and European Pat. App. Pub. Nos. 549,271 Al, 549,272 Al, 544,440 A2, and 544,490 Al ;
  • Prefe ⁇ ed examples of these catalysts include triazacyclononane)2(PF6)2> MnIH2( u -0)l( u -OAc)2(l,4,7-trimethyl- 1,4,7- triazacyclononane)2(C104)2, Mn IV 4(u-0)g( 1 ,4,7-triazacyclononane)4(Cl ⁇ 4)4, Mn ⁇ I- Mn IV 4(u-0) i (u-OAc)2-(l ,4,7-trimethyl- 1 ,4,7-triazacyclononane)2(Cl ⁇ 4)3, Mn r ( 1 ,4,7- trimethyl-l,4,7-triazacyclononane)- (OCH3)3(PF6), and mixtures thereof.
  • metal-based bleach catalysts include those disclosed in U.S. Patent Nos. 4,430,243 and U.S. 5,114,611.
  • the use of manganese with various complex ligands to enhance bleaching is also reported in the following: U.S. Patent Nos. 4,728,455; 5,284,944; 5,246,612; 5,256,779; 5,280,117; 5,274,147; 5,153,161; and 5,227,084.
  • Cobalt Metal Complexes - Cobalt bleach catalysts useful herein are known, and are described, for example, in U.S. Patent Nos. 5,597,936; 5,595,967; and 5,703,030; and M. L. Tobe, "Base Hydrolysis of Transition-Metal Complexes", Adv. Inorg. Bioinorg. Mech., (1983), 2, pages 1-94.
  • cobalt pentaamine acetate salts having the formula [Co(NH3)5 ⁇ Ac] T y , wherein "OAc” represents an acetate moiety and “Ty” is an anion, and especially cobalt pentaamine acetate chloride, [Co(NH 3 ) 5 OAc]Cl2; as well as [Co(NH3) 5 OAc](OAc) 2 ; [Co(NH 3 ) 5 OAc](PF 6 )2; [Co(NH 3 ) 5 OAc](S ⁇ 4); [Co(NH 3 ) 5 OAc](BF4)2; and [Co(NH 3 ) 5 OAc](N ⁇ 3)2 (herein "PAC").
  • cobalt catalysts are readily prepared by known procedures, such as taught for example in U.S. Patent Nos. 5,597,936; 5,595,967; and 5,703,030; in the Tobe article and the references cited therein; and in U.S. Patent 4,810,410; J. Chem. Ed. (1989), 66 (12), 1043-45; The Synthesis and Characterization of Inorganic Compounds, W.L. Jolly (Prentice-Hall; 1970), pp. 461-3; Inorg. Chem., 18, 1497-1502 (1979); Inorg. Chem., 21, 2881-2885 (1982); Inorg. Chem., 18, 2023-2025 (1979); Inorg.
  • Transition Metal Complexes of Macropolycyclic Rigid Ligands - Compositions herein may also suitably include as bleach catalyst a transition metal complex of a macropolycyclic rigid ligand.
  • the phrase "macropolycyclic rigid ligand” is sometimes abbreviated as "MRL” in discussion below.
  • the amount used is a catalytically effective amount, suitably about 1 ppb or more, for example up to about 99.9%, more typically about 0.001 ppm or more, preferably from about 0.05 ppm to about 500 ppm (wherein "ppb” denotes parts per billion by weight and "ppm” denotes parts per million by weight).
  • Suitable transition metals e.g., Mn are illustrated hereinafter.
  • Macropolycyclic means a MRL is both a macrocycle and is polycyclic.
  • Polycyclic means at least bicyclic.
  • the term “rigid” as used herein herein includes “having a superstructure” and “cross- bridged”. "Rigid” has been defined as the constrained converse of flexibility: see D.H. Busch., Chemical Reviews., (1993), 93, 847-860, inco ⁇ orated by reference.
  • "rigid” as used herein means that the MRL must be determinably more rigid than a macrocycle ("parent macrocycle") which is otherwise identical (having the same ring size and type and number of atoms in the main ring) but lacking a superstructure (especially linking moieties or, preferably cross-bridging moieties) found in the MRL's.
  • parent macrocycle which is otherwise identical (having the same ring size and type and number of atoms in the main ring) but lacking a superstructure (especially linking moieties or, preferably cross-bridging moieties) found in the MRL's.
  • the practitioner will use the free form (not the metal-bound form) of the macrocycles.
  • Rigidity is well-known to be useful in comparing macrocycles; suitable tools for determining, measuring or comparing rigidity include computational methods (see, for example, Zimmer, Chemical Reviews, (1995), 95(38), 2629-2648 or Hancock et al, Inorganica Chimica Acta, (1989), 164, 73-84.
  • Prefened MRL's herein are a special type of ultra-rigid ligand which is cross- bridged.
  • a "cross-bridge” is nonlimitingly illustrated in 1.11 hereinbelow. In 1.11, the
  • 1 8 cross-bridge is a -CH2CH2- moiety. It bridges N and N in the illustrative structure.
  • Suitable metals in the rigid ligand complexes include Mn(II), Mn(III), Mn(IV), Mn(V), Fe(H), Fe(m), Fe(IV), Co(I), Co(II), Co(IH), Ni(I), Ni(II), Ni(III), Cu(I), Cu(II), Cu(III), Cr(II), Cr(HI), Cr(IV), Cr(V), Cr(VI), V(III), V(IV), V(V), Mo(IV), Mo(V), Mo(VI), W(IV), W(V), W(VI), Pd(II), Ru(II), Ru( ⁇ i), and Ru(IV).
  • Prefened transition- metals in the instant transition-metal bleach catalyst include manganese, iron and chromium. More generally, the MRL's (and the co ⁇ esponding transition-metal catalysts) herein suitably comprise:
  • a covalently connected non-metal superstructure capable of increasing the rigidity of the macrocycle, preferably selected from (i) a bridging superstructure, such as a linking moiety;
  • a cross-bridging superstructure such as a cross-bridging linking moiety
  • superstructure is used herein as defined in the literature by Busch et al., see, for example, articles by Busch in "Chemical Reviews”.
  • Prefe ⁇ ed superstructures herein not only enhance the rigidity of the parent macrocycle, but also favor folding of the macrocycle so that it co-ordinates to a metal in a cleft.
  • Suitable superstructures can be remarkably simple, for example a linking moiety such as any of those illustrated in Fig. 1 and Fig. 2 below, can be used.
  • n is an integer, for example from 2 to 8, preferably less than 6, typically 2 to 4, or
  • m and n are integers from about 1 to 8, more preferably from 1 to 3; Z is N or CH; and T is a compatible substituent, for example H, alkyl, trialkylammonium, halogen, nitro, sulfonate, or the like.
  • the aromatic ring in 1.10 can be replaced by a saturated ring, in which the atom in Z connecting into the ring can contain N, O, S or C.
  • Suitable MRL's are further nonlimitingly illustrated by the following compound:
  • Fig. 3 This is a MRL in accordance with the invention which is a highly prefened, cross- bridged, methyl-substituted (all nitrogen atoms tertiary) derivative of cyclam.
  • this ligand is named 5,12-dimethyl-l,5,8,12-tetraazabicyclo[6.6.2]hexadecane using the extended von Baeyer system. See "A Guide to -TUPAC Nomenclature of Organic Compounds: Recommendations 1993", R. Panico, W.H. Powell and J-C Richer (Eds.), Blackwell Scientific Publications, Boston, 1993; see especially section R-2.4.2.1.
  • Transition-metal bleach catalysts of Macrocyclic Rigid Ligands which are suitable for use in the invention compositions can in general include known compounds where they conform with the definition herein, as well as, more preferably, any of a large number of novel compounds expressly designed for the present laundry or laundry uses, and non-limitingly illustrated by any of the following: Dichloro-5,12-dimethyl-l,5,8,12-tetraazabicyclo[6.6.2]hexadecane Manganese(II) Diaquo-5,12-dimethyl-l,5,8,12-tetraazabicyclo[6.6.2]hexadecaneManganese(II)
  • compositions and laundry processes herein can be adjusted to provide on the order of at least one part per hundred million of the active bleach catalyst species in the aqueous washing medium, and will preferably provide from about 0.01 ppm to about 25 ppm, more preferably from about 0.05 ppm to about 10 ppm, and most preferably from about 0.1 ppm to about 5 ppm, of the bleach catalyst species in the wash liquor.
  • typical compositions herein will comprise from about 0.0005% to about 0.2%, more preferably from about 0.004% to about 0.08%, of bleach catalyst, especially manganese or cobalt catalysts, by weight of the bleaching compositions.
  • compositions herein may comprise one or more other bleach catalysts.
  • Prefened bleach catalysts are zwitterionic bleach catalysts, which are described in U.S. Patent No. 5,576,282 (especially 3-(3,4-dihydroisoquinolinium) propane sulfonate.
  • Other bleach catalysts include cationic bleach catalysts are described in U.S. Patent Nos. 5,360,569, 5,442,066, 5,478,357, 5,370,826, 5,482,515, 5,550,256, and WO 95/13351, WO 95/13352, and WO 95/13353.
  • Bleach Boosting Compounds may comprise one or more bleach boosting compounds.
  • Bleach boosting compounds provide increased bleaching effectiveness in lower temperature applications.
  • the bleach boosters act in conjunction with conventional peroxygen bleaching sources to provide increased bleaching effectiveness.
  • Suitable bleach boosting compounds for use in accordance with the present invention comprise cationic imines, zwitterionic imines, anionic imines and/or polyionic imines having a net charge of from about +3 to about -3, and mixtures thereof.
  • imine bleach boosting compounds of the present invention include those of the general structure:
  • Rl - R ⁇ may be a hydrogen or an unsubstituted or substituted radical selected from the group consisting of phenyl, aryl, heterocyclic ring, alkyl and cycloalkyl radicals.
  • Prefened bleach boosting compounds include where Rl - R ⁇ may be a hydrogen or an unsubstituted or substituted radical selected from the group consisting of phenyl, aryl, heterocyclic ring, alkyl and cycloalkyl radicals except that at least one of Rl - R ⁇ contains an anionically charged moiety.
  • More prefened bleach boosting compounds include the anionically charged moiety bonded to the imine nitrogen.
  • Such bleach boosting compounds comprise quaternary imine zwitterions represented by the formula:
  • R - R ⁇ is hydrogen or an unsubstituted or substituted radical selected from the group consisting of phenyl, aryl, heterocyclic ring, alkyl and cycloalkyl radicals; R ⁇ and R2 form part of a common ring; T has the formula:
  • R 7 -R 16 are individually selected from the group consisting of H, linear or branched C ⁇ -Cig substituted or unsubstituted alkyl, alkylene, oxyalkylene, aryl, substituted aryl, substituted arylcarbonyl groups and amide groups;
  • Z is covalently bonded to J x when x is 1 and to Cj-, when x is 0, and Z is selected from the group consisting of -CO2", -S ⁇ 3"and -OS03"and a is 1.
  • Ri and R2 together may form the non-charged moiety:
  • Most prefe ⁇ ed bleach boosting compounds include are aryliminium zwitterions wherein R3 is H, Z is -SO3" or -OSO3", and a is 1.
  • the aryliminium zwitterions may have the formula:
  • R 17 is selected from the group consisting of H and linear or branched Cj-Ci g substituted or unsubstituted alkyl, preferably Cj-C 14 alkyl and even more preferably Cg- C ⁇ Q linear alkyl chain.
  • the bleach boosting compounds may also comprise an aryliminum polyion having a net negative charge and R 3 is H, T is -(CH2) D - or -CH2(C6H4)-, Z is -SO3 " , a is 2 and b is from 2 to 4.
  • the aryliminium polyion preferably has the formula:
  • the quaternary imine bleach boosting compounds preferably act in conjunction with a peroxygen source to provide a more effective bleaching system.
  • the bleach boosting compounds react with the peroxygen source to form a more active bleaching species, an oxaziridinium compound.
  • the formed oxaziridinium compounds are either cationic, zwitterionic or polyionic with a net negative charge as was the imine bleach boosting compound.
  • the oxaziridinium compound has an increased activity at lower temperatures relative to the peroxygen compound.
  • the oxaziridinium compound is represented by the formula:
  • the prefe ⁇ ed bleach boosting compounds of the present invention represented by the formula (II) produces the active oxaziridinium bleaching species represented by the formula: (IV)
  • R 17 is defined as above.
  • Peroxygen sources are well-known in the art and the peroxygen source employed in the present invention may comprise any of these well known sources, including peroxygen compounds as well as compounds which under consumer use conditions provide an effective amount of peroxygen in situ.
  • the peroxygen source may include a hydrogen peroxide source, the in situ formation of a peracid anion through the reaction of a hydrogen peroxide source and a bleach activator, preformed peracid compounds or mixtures of suitable peroxygen sources.
  • a hydrogen peroxide source the in situ formation of a peracid anion through the reaction of a hydrogen peroxide source and a bleach activator, preformed peracid compounds or mixtures of suitable peroxygen sources.
  • the bleach boosting compounds when present, are preferably employed in conjunction with a peroxygen source in the bleaching compositions of the present invention.
  • the peroxygen source is preferably present at a level of from about 0.1% to about 60% by weight of the composition, and more preferably from about 1% to about 40% by weight of the composition.
  • the bleach boosting compound is preferably present at a level of from about 0.01% to about 10% by weight of the composition, and more preferably from about 0.05% to about 5% by weight of the composition.
  • PAP phthalimido-peroxy-caproic acid
  • the prefened enzymes for use in the particulate solids of the present invention are selected from proteases, amylases, cellulases and mixtures thereof.
  • Nonlimiting examples of other suitable enzymes include the following:
  • Suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, phospholipases, esterases, cutinases, pectinases, keratanases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, ⁇ -glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, mannanases, more preferably plant cell wall degrading enzymes and non-cell wall-degrading enzymes (WO 98/39403 A) and can, more specifically, include pectinase (WO 98/06808 A, JP 10088472 A, JP 10088485 A); pectolyase (WO98/06805 Al
  • Oxidoreductases and/or their associated antibodies can be used, for example with H 2 0 2 , as taught in WO 98/07816 A.
  • other redox-active enzymes can be used, even, for example, catalases (see, for example JP09316490 A).
  • any oxygenases of extracellular origin especially fungal oxygenase such as dioxygenase of extracellular origin. The latter is most especially quercetinase, catechinase or an anthocyanase, optionally in combination with other suitable oxidase, peroxidase or hydrolytic enzymes, all a taught in WO9828400 A2.
  • the cellulases useful in the present invention include both bacterial or fungal cellulases. Preferably, they will have a pH optimum of between 5 and 12 and a specific activity above 50 CEVU/mg (Cellulose Viscosity Unit).
  • Suitable cellulases are disclosed in U.S. Patent 4,435,307, J61078384 and WO96/02653 which discloses fungal cellulase produced respectively from Humicola insolens, Trichoderma, Thielavia and Sporotrichum.
  • EP 739 982 describes cellulases isolated from novel Bacillus species. Suitable cellulases are also disclosed in GB-A-2.075.028; GB-A-2.095.275; DE-OS- 2.247.832 and W095/26398.
  • cellulases examples include cellulases produced by a strain of Humicola insolens (Humicola grisea var. thermoidea), particularly the Humicola strain DSM 1800.
  • Suitable cellulases are cellulases originated from Humicola insolens having a molecular weight of about 50KDa, an isoelectric point of 5.5 and containing 415 amino acids; and a ⁇ 43kD endoglucanase derived from Humicola insolens, DSM 1800, exhibiting cellulase activity; a prefened endoglucanase component has the amino acid sequence disclosed in WO 91/17243.
  • suitable cellulases are the EGHI cellulases from Trichoderma longibrachiatum described in WO94/21801 -to Genencor. Especially suitable cellulases are the cellulases having color care benefits.
  • cellulases examples include cellulases described in European patent application No. 91202879.2, filed November 6, 1991 (Novo). Carezyme and Celluzyme (Novo Nordisk A/S) are especially useful. See also W091/17244 and WO91/21801. Other suitable cellulases for fabric care and or laundry properties are described in WO96/34092, WO96/17994 and WO95/24471.
  • Peroxidase enzymes are used in combination with oxygen sources, e.g. percarbonate, perborate, persulfate, hydrogen peroxide, etc and with a phenolic substrate as bleach enhancing molecule. They are used for "solution bleaching", i.e.
  • Peroxidase enzymes are known in the art, and include, for example, horseradish peroxidase, ligninase and haloperoxidase such as chloro- and bromo-peroxidase.
  • Suitable peroxidases and peroxidase-containing detergent compositions are disclosed, for example, in U.S. Patent Nos. 5,705,464, 5,710,115, 5,576,282, 5,728,671 and 5,707,950, PCT International Application WO 89/099813, WO89/09813 and in European Patent application EP No. 91202882.6, filed on November 6, 1991 and EP No. 96870013.8, filed February 20, 1996. Also suitable is the laccase enzyme.
  • Suitable enhancers are selected from the group consisting of substituted phenthiazine and phenoxasine 10-Phenothiazinepropionicacid (PPT), 10- ethylphenothiazine-4-carboxylic acid (EPC), 10-phenoxazinepropionic acid (POP) and 10-methylphenoxazine (described in WO 94/12621), substitued syringates (C3-C5 substitued alkyl syringates), phenols and mixtures thereof.
  • PPT 10-Phenothiazinepropionicacid
  • EPC 10- ethylphenothiazine-4-carboxylic acid
  • POP 10-phenoxazinepropionic acid
  • 10-methylphenoxazine described in WO 94/12621
  • substitued syringates C3-C5 substitued alkyl syringates
  • phenols and mixtures thereof substitued syring
  • Enzymatic systems may be used as bleaching agents.
  • the hydrogen peroxide may also be present by adding an enzymatic system (i.e. an enzyme and a substrate therefore) which is capable of generating hydrogen peroxide at the beginning or during the washing and/or rinsing process.
  • an enzymatic system i.e. an enzyme and a substrate therefore
  • Such enzymatic systems are disclosed in EP Patent Application 91202655.6 filed October 9, 1991.
  • Suitable lipase enzymes for detergent usage include those produced by microorganisms of the Pseudomonas group, such as Pseudomonas stutzeri ATCC 19.154, as disclosed in British Patent 1,372,034.
  • Suitable lipases include those which show a positive immunological cross-reaction with the antibody of the lipase, produced by the microorganism Pseudomonas fluorescent IAM 1057. This lipase is available from Amano Pharmaceutical Co. Ltd., Nagoya, Japan, under the trade name Lipase P "Amano,” hereinafter refened to as "Amano-P".
  • lipases include Amano-CES, lipases ex Chromobacter viscosum, e.g. Chromobacter viscosum var. lipolyticum NRRLB 3673 from Toyo Jozo Co., Tagata, Japan; Chromobacter viscosum lipases from U.S. Biochemical Co ⁇ ., U.S.A. and Disoynth Co., The Netherlands, and lipases ex Pseudomonas gladioli.
  • lipases such as Ml Lipase ⁇ - ancl Lipomax ⁇ - (Gist-Brocades) and Lipolase ⁇ - and Lipolase UltraR(Novo) which have found to be very effective when used in combination with the compositions of the present invention.
  • lipolytic enzymes described in EP 258 068, WO 92/05249 and WO 95/22615 by Novo Nordisk and in WO 94/03578, WO 95/35381 and WO 96/00292 by Unilever.
  • cutinases [EC 3.1.1.50] which can be considered as a special kind of lipase, namely lipases which do not require interfacial activation. Addition of cutinases to laundry compositions have been described in e.g. WO-A-88/09367 (Genencor); WO 90/09446 (Plant Genetic System) and WO 94/14963 and WO 94/14964 (Unilever).
  • phospholipases may be inco ⁇ orated into the laundry compositions of the present invention.
  • suitable phospholipases included: EC 3.1.1.32 Phospholipase Al; EC 3.1.1.4 Phospholipase A2; EC 3.1.1.5 Lysopholipase; EC 3.1.4.3 Phospholipase C; EC 3.1.4.4. Phospolipase D.
  • phospholipases include LECITASE® from Novo Nordisk A/S of Denmark and Phospholipase A2 from Sigma.
  • phospolipases When phospolipases are included in the compositions of the present invention, it is prefened that amylases are also included. Without desiring to be bound by theory, it is believed that the combined action of the phospholipase and amylase provide substantive stain removal, especially on greasy/oily, starchy and highly colored stains and soils.
  • the phospholipase and amylase when present, are inco ⁇ orated into the compositions of the present invention at a pure enzyme weight ratio between 4500:1 and 1:5, more preferably between 50:1 and 1:1.
  • Suitable proteases are the subtilisins which are obtained from particular strains of B. subtilis and B. licheniformis (subtilisin BPN and BPN').
  • One suitable protease is obtained from a strain of Bacillus, having maximum activity throughout the pH range of 8-12, developed and sold as ESPERASE® by Novo Industries A/S of Denmark, hereinafter "Novo". The preparation of this enzyme and analogous enzymes is described in GB 1,243,784 to Novo.
  • Proteolytic enzymes also encompass modified bacterial serine proteases, such as those described in European Patent Application Serial Number 87 303761.8, filed April 28, 1987 (particularly pages 17, 24 and 98), and which is called herein "Protease B", and in European Patent Application 199,404, Venegas, published October 29, 1986, which refers to a modified bacterial serine proteolytic enzyme which is called "Protease A” herein.
  • Protease C is a variant of an alkaline serine protease from Bacillus in which Lysine replaced arginine at position 27, tyrosine replaced valine at position 104, serine replaced asparagine at position 123, and alanine replaced threonine at position 274.
  • Protease C is described in EP 90915958:4, co ⁇ esponding to WO 91/06637, Published May 16, 1991. Genetically modified variants, particularly of Protease C, are also included herein.
  • a prefe ⁇ ed protease refened to as "Protease D” is a carbonyl hydrolase as described in U.S. Patent No. 5,677,272, and WO95/10591. Also suitable is a carbonyl hydrolase variant of the protease described in WO95/10591, having an amino acid sequence derived by replacement of a plurality of amino acid residues replaced in the precursor enzyme co ⁇ esponding to position +210 in combination with one or more of the following residues : +33, +62, +67, +76, +100, +101, +103, +104, +107, +128, +129, +130, +132, +135, +156, +158, +164, +166, +167, +170, +209, +215, +217, +218, and +222, where the numbered position conesponds to naturally-occurring subtilisin from Bacillus amyloliquefaciens or to equivalent amino acid residues in other carbonyl hydrolases or subtil
  • proteases described in patent applications EP 251 446 and WO 91/06637, protease BLAP® described in WO91/02792 and their variants described in WO 95/23221. See also a high pH protease from Bacillus sp. NCEMB 40338 described in WO 93/18140 A to Novo. Enzymatic detergents comprising protease, one or more other enzymes, and a reversible protease inhibitor are described in WO 92/03529 A to Novo. When desired, a protease having decreased adso ⁇ tion and increased hydrolysis is available as described in WO 95/07791 to Procter & Gamble. A recombinant trypsin-like protease for detergents suitable herein is described in WO 94/25583 to Novo.. Other suitable proteases are described in EP 516 200 by Unilever.
  • proteases are described in PCT publications: WO 95/30010; WO 95/30011; and WO 95/29979. Suitable proteases are commercially available as ESPERASE®, ALCALASE®, DURAZYM®, SAVINASE®, EVERLASE® and
  • MAXACAL®, PROPERASE® and MAXAPEM® all from Genencor International (formerly Gist-Brocades of The Netherlands).
  • Prefe ⁇ ed proteases useful herein include certain variants ( WO 96/28566 A; WO 96/28557 A; WO 96/28556 A; WO 96/25489 A).
  • Other particularly useful proteases are multiply-substituted protease variants comprising a substitution of an amino acid residue with another naturally occurring amino acid residue at an amino acid residue position conesponding to position 103 of Bacillus amyloliquefaciens subtilisin in combination with a substitution of an amino acid residue with another naturally occurring amino acid residue at one or more amino acid residue positions co ⁇ esponding to positions 1, 3, 4, 8, 9, 10, 12, 13, 16, 17, 18, 19, 20, 21, 22, 24, 27, 33, 37, 38, 42, 43, 48, 55, 57, 58, 61, 62, 68, 72, 75, 76, 77, 78, 79, 86, 87, 89, 97, 98, 99, 101, 102, 104, 106, 107, 109, 111, 114, 116, 117, 119, 121, 123, 126, 128, 130, 131, 133, 134, 137, 140, 141, 142, 146, 147, 158,
  • protease variant includes a substitution set selected from the group consisting of:
  • the protease variant includes a substitution set selected from the group consisting of:
  • the protease variant includes the substitution set 101/103/104/159/232/236/245/248/252, preferably 101G/103A 104I/159D/232V/ 236H/245R/248D/252K.
  • proteases described in patent applications EP 251 446 and WO 91/06637, protease BLAP® described in WO91/02792 and their variants described in WO 95/23221.
  • protease from Bacillus sp. NCIMB 40338 described in WO 93/18140 A to Novo.
  • Enzymatic detergents comprising protease, one or more other enzymes, and a reversible protease inhibitor are described in WO 92/03529 A to Novo.
  • a protease having decreased adso ⁇ tion and increased hydrolysis is available as described in WO 95/07791 to Procter & Gamble.
  • a recombinant trypsin-like protease for detergents suitable herein is described in WO 94/25583 to Novo.
  • Other suitable proteases are described in EP 516 200 by Unilever.
  • proteases useful in the present invention are known as
  • MAXACAL®, PROPERASE® and MAXAPEM® all from Genencor International (formerly Gist-Brocades of The Netherlands).
  • enzymes and their directly linked inhibitors e.g., protease and its inhibitor linked by a peptide chain as described in WO 98/13483 A
  • enzymes and their non-linked inhibitors used in selected combinations herein include protease with protease inhibitors selected from proteins, peptides and peptide derivatives as described in WO 98/13461 A, WO 98/13460 A, WO 98/13458 A, WO 98/13387 A.
  • Amylases can be used with amylase antibodies as taught in WO 98/07818 A and WO 98/07822 A, lipases can be used in conjunction with lipase antibodies as taught in WO 98/07817 A and WO 98/06810 A, proteases can be used in conjunction with protease antibodies as taught in WO 98/07819 A and WO 98/06811 A, Cellulase can be combined with cellulase antibodies as taught in WO 98/07823 A and WO 98/07821 A. More generally, enzymes can be combined with similar or dissimilar enzyme directed antibodies, for example as taught in WO 98/07820 A or WO 98/06812 A.
  • the prefe ⁇ ed enzymes herein can be of any suitable origin, such as vegetable, animal, bacterial, fungal and yeast origin.
  • Prefe ⁇ ed selections are influenced by factors such as pH-activity and/or stability optima, thermostability, and stability to active detergents, builders and the like.
  • bacterial or fungal enzymes are prefe ⁇ ed, such as bacterial amylases and proteases, and fungal cellulases.
  • Amylases ( ⁇ and/or ⁇ ) can be included for removal of carbohydrate-based stains.
  • WO94/02597 describes laundry compositions which inco ⁇ orate mutant amylases. See also W095/ 10603.
  • Other amylases known for use in laundry compositions include both ⁇ - and ⁇ -amylases.
  • ⁇ -Amylases are known in the art and include those disclosed in US Pat. no. 5,003,257; EP 252,666; WO/91/00353; FR 2,676,456; EP 285,123; EP 525,610; EP 368,341; and British Patent specification no. 1,296,839 (Novo).
  • amylases are stability-enhanced amylases described in W094/18314 and WO96/05295, Genencor, and amylase variants having additional modification in the immediate parent available from Novo Nordisk A/S, disclosed in WO 95/10603. Also suitable are amylases described in EP 277 216.
  • ⁇ -amylases characterised by having a specific activity at least 25% higher than the specific activity of Termamyl® at a temperature range of 25°C to 55°C and at a pH value in the range of 8 to
  • compositions of the present invention may also comprise a mannanase enzyme.
  • the mannanase is selected from the group consisting of: three mannans-degrading enzymes : EC 3.2.1.25 : ⁇ -mannosidase, EC 3.2.1.78 : Endo-l,4- ⁇ - mannosidase, refened therein after as "mannanase” and EC 3.2.1.100 : 1,4- ⁇ - mannobiosidase and mixtures thereof.
  • IUPAC Classification- Enzyme nomenclature 1992 ISBN 0-12-227165-3 Academic Press.
  • the treating compositions of the present invention when a mannanase is present, comprise a ⁇ -l,4-Mannosidase (E.C. 3.2.1.78) refened to as Mannanase.
  • Mannanase or "galactomannanase” denotes a mannanase enzyme defined according to the art as officially being named mannan endo-l,4-beta-mannosidase and having the alternative names beta-mannanase and endo-l,4-mannanase and catalysing the reaction: random hydrolysis of 1,4-beta-D- mannosidic linkages in mannans, galactomannans, glucomannans, and galactoglucomannans.
  • Mannanases (EC 3.2.1.78) constitute a group of polysaccharases which degrade mannans and denote enzymes which are capable of cleaving polyose chains contaning marmose units, i.e. are capable of cleaving glycosidic bonds in mannans, glucomannans, galactomannans and galactogluco-mannans.
  • Mannans are polysaccharides having a backbone composed of ⁇ -1,4- linked mannose; glucomannans are polysaccharides having a backbone or more or less regularly alternating ⁇ -1,4 linked mannose and glucose; galactomannans and galactoglucomannans are mannans and glucomannans with ⁇ -1, 6 linked galactose sidebranches. These compounds may be acetylated.
  • the degradation of galactomannans and galactoglucomannans is facilitated by full or partial removal of the galactose sidebranches. Further the degradation of the acetylated mannans, glucomannans, galactomannans and galactogluco-mannans is facilitated by full or partial deacetylation. Acetyl groups can be removed by alkali or by mannan acetylesterases.
  • oligomers which are released from the mannanases or by a combination of mannanases and ⁇ -galactosidase and/or mannan acetyl esterases can be further degraded to release free maltose by ⁇ -mannosidase and/or ⁇ -glucosidase.
  • Mannanases have been identified in several Bacillus organisms. For example,
  • JP-03047076 discloses a beta-mannanase derived from Bacillus sp., having a molecular weight of 373 kDa measured by gel filtration, an optimum pH of 8-10 and a pi of 5.3-5.4.
  • JP-63056289 describes the production of an alkaline, thermostable beta-mannanase which hydrolyses beta- 1 ,4-D-mannopyranoside bonds of e.g. mannans and produces manno-oligosaccharides.
  • JP-63036774 relates to the Bacillus microorganism FERM P-8856 which produces beta-mannanase and beta- mannosidase at an alkaline pH.
  • JP-08051975 discloses alkaline beta-mannanases from alkalophilic Bacillus sp. AM-001.
  • a purified mannanase from Bacillus amyloliquefaciens useful in the bleaching of pulp and paper and a method of preparation thereof is disclosed in WO 97/11164.
  • WO 91/18974 describes a hemicellulase such as a glucanase, xylanase or mannanase active at an extreme pH and temperature.
  • WO 94/25576 discloses an enzyme from Aspergillus aculeatus, CBS 101.43, exhibiting mannanase activity which may be useful for degradation or modification of plant or algae cell wall material.
  • WO 93/24622 discloses a mannanase isolated from Trichoderma reseei useful for bleaching lignocellulosic pulps.
  • An hemicellulase capable of degrading mannan-containing hemicellulose is described in W091/18974 and a purified mannanase from Bacillus amyloliquefaciens is described in W097/11164.
  • the mannanase enzyme will be an alkaline mannanase as defined below, more preferably, a mannanase originating from a bacterial source.
  • the laundry detergent composition of the present invention will comprise an alkaline mannanase selected from the mannanase from the strain Bacillus agaradhaerens NICMB 40482; the mannanase from Bacillus subtilis strain 168, gene yght; the mannanase from Bacillus sp. 1633 and/or the mannanase from Bacillus sp. AAI12.
  • Most prefened mannanase for the inclusion in the detergent compositions of the present invention is the mannanase enzyme originating from Bacillus sp. 1633 as described in the co-pending Danish patent application No. PA 1998 01340.
  • alkaline mannanase enzyme is meant to encompass an enzyme having an enzymatic activity of at least 10%, preferably at least 25%, more preferably at least 40% of its maximum activity at a given pH ranging from 7 to 12, preferably 7.5 to 10.5.
  • the alkaline mannanase from Bacillus agaradhaerens NICMB 40482 is described in the co-pending U.S. patent application serial No. 09/111,256. More specifically, this mannanase is: i) a polypeptide produced by Bacillus agaradhaerens, NCIMB 40482; or ii) a polypeptide comprising an amino acid sequence as shown in positions 32-343 of SEQ ID NO:2 as shown in U.S. patent application serial No.
  • conesponding isolated polypeptide having mannanase activity selected from the group consisting of:
  • polynucleotide molecules encoding a polypeptide having mannanase activity and comprising a sequence of nucleotides as shown in SEQ ID NO: 1 from nucleotide 97 to nucleotide 1029 as shown in U.S. patent application serial No. 09/111,256;
  • polynucleotide molecules that encode a polypeptide having mannanase activity that is at least 70% identical to the amino acid sequence of SEQ ID NO: 2 from amino acid residue 32 to amino acid residue 343 as shown in U.S. patent application serial No. 09/111,256; (d) molecules complementary to (a), (b) or (c); and
  • the plasmid pSJ1678 comprising the polynucleotide molecule (the DNA sequence) encoding said mannanase has been transformed into a strain of the Escherichia coli which was deposited by the inventors according to the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Pu ⁇ oses of Patent Procedure at the Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Mascheroder Weg lb, D-38124 Braunschweig, Federal Republic of Germany, on 18 May 1998 under the deposition number DSM 12180.
  • a second more prefe ⁇ ed enzyme is the mannanase from the Bacillus subtilis strain 168, which is described in the co-pending U.S. patent application serial No.
  • this mannanase is: i) is encoded by the coding part of the DNA sequence shown in SED ID No. 5 shown in the U.S. patent application serial No. 09/095,163 or an analogue of said sequence; and/or ii) a polypeptide comprising an amino acid sequence as shown SEQ ID NO:6 shown in the U.S. patent application serial No.
  • an analogue of the polypeptide defined in ii) which is at least 70% homologous with said polypeptide, or is derived from said polypeptide by substitution, deletion or addition of one or several amino acids, or is immunologically reactive with a polyclonal antibody raised against said polypeptide in purified form.
  • isolated polypeptide having mannanase activity selected from the group consisting of: (a) polynucleotide molecules encoding a polypeptide having mannanase activity and comprising a sequence of nucleotides as shown in SEQ ID NO:5 as shown in the U.S. patent application serial No.
  • 09/095,163 (b) species homologs of (a); (c) polynucleotide molecules that encode a polypeptide having mannanase activity that is at least 70% identical to the amino acid sequence of SEQ ED NO: 6 as shown in the U.S. patent application serial No. 09/095,163;
  • mannanase degenerate nucleotide sequences of (a), (b), (c) or (d).
  • a third more prefened mannanase is described in the co-pending Danish patent application No. PA 1998 01340. More specifically, this mannanase is: i) a polypeptide produced by Bacillus sp. 1633; ii) a polypeptide comprising an amino acid sequence as shown in positions 33-340 of SEQ ID NO:2 as shown in the Danish application No. PA 1998 01340; or iii) an analogue of the polypeptide defined in i) or ii) which is at least
  • 65% homologous with said polypeptide is derived from said polypeptide by substitution, deletion or addition of one or several amino acids, or is immunologically reactive with a polyclonal antibody raised against said polypeptide in purified form.
  • co ⁇ esponding isolated polynucleotide molecule selected from the group consisting of:
  • polynucleotide molecules that encode a polypeptide having mannanase activity that is at least 65% identical to the amino acid sequence of SEQ ID NO: 2 from amino acid residue 33 to amino acid residue 340 the Danish application No. PA 1998 01340;
  • the plasmid pBXM3 comprising the polynucleotide molecule (the DNA sequence) encoding a mannanase of the present invention has been transformed into a strain of the Escherichia coli which was deposited by the inventors according to the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Pu ⁇ oses of Patent Procedure at the Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Mascheroder Weg lb, D-38124 Braunschweig, Federal Republic of Germany, on 29 May 1998 under the deposition number DSM 12197.
  • a fourth more prefened mannanase is described in the Danish co-pending patent application No. PA 1998 01341.
  • this mannanase is: i) a polypeptide produced by Bacillus sp. AAI 12; ii) a polypeptide comprising an amino acid sequence as shown in positions 25-362 of SEQ ID NO:2as shown in the Danish application No. PA 1998 01341; or iii) an analogue of the polypeptide defined in i) or ii) which is at least
  • 65% homologous with said polypeptide is derived from said polypeptide by substitution, deletion or addition of one or several amino acids, or is immunologically reactive with a polyclonal antibody raised against said polypeptide in purified form.
  • co ⁇ esponding isolated polynucleotide molecule selected from the group consisting of
  • polynucleotide molecules that encode a polypeptide having mannanase activity that is at least 65% identical to the amino acid sequence of SEQ ED NO: 2 from amino acid residue 25 to amino acid residue 362 as shown in the Danish application No. PA 1998 01341;
  • the plasmid pBXMl comprising the polynucleotide molecule (the DNA sequence) encoding a mannanase of the present invention has been transformed into a strain of the
  • Escherichia coli which was deposited by the inventors according to the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Pu ⁇ oses of Patent Procedure at the Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, Mascheroder Weg lb, D-38124 Braunschweig, Federal Republic of Germany, on 7 October 1998 under the deposition number DSM 12433.
  • the mannanase when present, is inco ⁇ orated into the treating compositions of the present invention preferably at a level of from 0.0001% to 2%, more preferably from 0.0005% to 0.1%, most prefe ⁇ ed from 0.001% to 0.02% pure enzyme by weight of the composition.
  • compositions of the present invention may also comprise a xyloglucanase enzyme.
  • Suitable xyloglucanases for the pu ⁇ ose of the present invention are enzymes exhibiting endoglucanase activity specific for xyloglucan, preferably at a level of from about 0.001% to about 1%, more preferably from about 0.01% to about 0.5%, by weight of the composition.
  • the term "endoglucanase activity” means the capability of the enzyme to hydrolyze 1,4- ⁇ -D-glycosidic linkages present in any cellulosic material, such as cellulose, cellulose derivatives, lichenin, ⁇ -D-glucan, or xyloglucan.
  • the endoglucanase activity may be determined in accordance with methods known in the art, examples of which are described in WO 94/14953 and hereinafter.
  • One unit of endoglucanase activity e.g. CMCU, AVIU, XGU or BGU
  • CMCU CMC
  • AVIU acid swollen Avicell
  • XGU xyloglucan
  • BGU cereal ⁇ - glucan
  • the reducing sugars are determined as described in WO 94/14953 and hereinafter.
  • the specific activity of an endoglucanase towards a substrate is defined as units/mg of protein.
  • AACCAACCCC AGCCGACCGA TTGTCCTTCC TTACCTC ACC ATCATTTAAC ATCTTTTCAC CATGAAGCTT
  • the term "specific for xyloglucan” means that the endoglucanse enzyme exhibits its highest endoglucanase activity on a xyloglucan substrate, and preferably less than 75% activity, more preferably less than 50% activity, most preferably less than about 25% activity, on other cellulose-containing substrates such as carboxymethyl cellulose, cellulose, or other glucans.
  • the specificity of an endoglucanase towards xyloglucan is further defined as a relative activity determined as the release of reducing sugars at optimal conditions obtained by incubation of the enzyme with xyloglucan and the other substrate to be tested, respectively.
  • the specificity may be defined as the xyloglucan to ⁇ -glucan activity (XGU/BGU), xyloglucan to carboxy methyl cellulose activity (XGU/CMCU), or xyloglucan to acid swollen Avicell activity (XGU/ AVIU), which is preferably greater than about 50, such as 75, 90 or 100.
  • XGU/BGU xyloglucan to ⁇ -glucan activity
  • XGU/CMCU xyloglucan to carboxy methyl cellulose activity
  • XGU/ AVIU xyloglucan to acid swollen Avicell activity
  • the term "derived from” as used herein refers not only to an endoglucanase produced by strain CBS 101.43, but also an endoglucanase encoded by a DNA sequence isolated from strain CBS 101.43 and produced in a host organism transformed with said DNA sequence.
  • homologue indicates a polypeptide encoded by DNA which hybridizes to the same probe as the DNA coding for an endoglucanase enzyme specific for xyloglucan under certain specified conditions (such as presoaking in 5xSSC and prehybridizing for 1 h at -40°C in a solution of 5xSSC, 5xDenhardt's solution, and 50 ⁇ g of denatured sonicated calf thymus DNA, followed by hybridization in the same solution supplemented with 50 ⁇ Ci 32-P-dCTP labelled probe for 18 h at -40°C and washing three times in 2xSSC, 0.2% SDS at 40°C for 30 minutes).
  • the term is intended to refer to a DNA sequence which is at least 70% homologous to any of the sequences shown above encoding an endoglucanase specific for xyloglucan, including at least 75%, at least 80%, at least 85%, at least 90% or even at least 95% with any of the sequences shown above.
  • the term is intended to include modifications of any of the DNA sequences shown above, such as nucleotide substitutions which do not give rise to another amino acid sequence of the polypeptide encoded by the sequence, but which co ⁇ espond to the codon usage of the host organism into which a DNA construct comprising any of the DNA sequences is introduced or nucleotide substitutions which do give rise to a different amino acid sequence and therefore, possibly, a different amino acid sequence and therefore, possibly, a different protein structure which might give rise to an endoglucanase mutant with different properties than the native enzyme.
  • Endoglucanase specific for xyloglucan useful in the present invention preferably is one which has a XGU/BGU, XGU/CMU and/or XGU/AVIU ratio (as defined above) of more than 50, such as 75, 90 or 100.
  • endoglucanase specific for xyloglucan is preferably substantially devoid of activity towards ⁇ -glucan and/or exhibits at the most 25% such as at the most 10% or about 5%, activity towards carboxymethyl cellulose and/or Avicell when the activity towards xyloglucan is 100%.
  • endoglucanase specific for xyloglucan of the invention is preferably substantially devoid of transferase activity, an activity which has been observed for most endoglucanases specific for xyloglucan of plant origin.
  • Endoglucanase specific for xyloglucan may be obtained from the fungal species A. aculeatus, as described in WO 94/14953. Microbial endoglucanases specific for xyloglucan has also been described in WO 94/14953. Endoglucanases specific for xyloglucan from plants have been described, but these enzymes have transferase activity and therefore must be considered inferior to microbial endoglucanses specific for xyloglucan whenever extensive degradation of xyloglucan is desirable.
  • An additional advantage of a microbial enzyme is that it, in general, may be produced in higher amounts in a microbial host, than enzymes of other origins.
  • the xyloglucanase when present, is inco ⁇ orated into the treating compositions of the invention preferably at a level of from 0.0001% to 2%, more preferably from 0.0005% to 0.1%, most prefe ⁇ ed from 0.001% to 0.02% pure enzyme by weight of the composition.
  • the above-mentioned enzymes may be of any suitable origin, such as vegetable, animal, bacterial, fungal and yeast origin. Origin can further be mesophilic or extremophilic (psychrophilic, psychrotrophic, thermophilic, barophilic, alkalophilic, acidophilic, halophilic, etc.). Purified or non-purified forms of these enzymes may be used.
  • the variants may be designed such that the compatibility of the enzyme to commonly encountered ingredients of such compositions is increased.
  • the variant may be designed such that the optimal pH, bleach or chelant stability, catalytic activity and the like, of the enzyme variant is tailored to suit the particular laundry application.
  • the isoelectric point of such enzymes may be modified by the substitution of some charged amino acids, e.g. an increase in isoelectric point may help to improve compatibility with anionic surfactants.
  • the stability of the enzymes may be further enhanced by the creation of e.g. additional salt bridges and enforcing calcium binding sites to increase chelant stability.
  • Suitable cleaning adjunct materials that can be added are enzyme oxidation scavengers.
  • enzyme oxidation scavengers are ethoxylated tetraethylene polyamines.
  • a range of enzyme materials are also disclosed in WO 9307263 and WO 9307260 to Genencor International, WO 8908694, and U.S. 3,553,139, January 5, 1971 to McCarty et al. Enzymes are further disclosed in U.S. 4,101,457, and in U.S. 4,507,219. Enzyme materials particularly useful for liquid detergent formulations, and their inco ⁇ oration into such formulations, are disclosed in U.S. 4,261,868. Enzyme Stabilizers - Enzymes for use in detergents can be stabilized by various techniques. Enzyme stabilization techniques are disclosed and exemplified in U.S. 3,600,319, EP 199,405 and EP 200,586.
  • Enzyme stabilization systems are also described, for example, in U.S. 3,519,570.
  • the enzymes employed herein can be stabilized by the presence of water- soluble sources of calcium and/or magnesium ions in the finished compositions which provide such ions to the enzymes. Suitable enzyme stabilizers and levels of use are described in U.S. Pat. Nos. 5,705,464, 5,710,115 and 5,576,282.
  • compositions described herein preferably comprise one or more detergent builders or builder systems.
  • the compositions will typically comprise at least about 1% builder, preferably from about 5%, more preferably from about 10% to about 80%, preferably to about 50%, more preferably to about 30% by weight, of detergent builder. Lower or higher levels of builder, however, are not meant to be excluded.
  • Prefened builders for use in the detergent and laundry compositions, particularly dishwashing compositions, described herein include, but are not limited to, water-soluble builder compounds, (for example polycarboxylates) as described in U.S. Patent Nos. 5,695,679, 5,705,464 and 5,710,115.
  • suitable polycarboxylates are disclosed in U.S. Patent Nos. 4,144,226, 3,308,067 and 3,723,322.
  • Prefe ⁇ ed polycarboxylates are hydroxycarboxylates containing up to three carboxy groups per molecule, more particularly titrates.
  • Inorganic or P-containing detergent builders include, but are not limited to, the alkali metal, ammonium and alkanolammonium salts of polyphosphates (exemplified by the tripolyphosphates, pyrophosphates, and glassy polymeric meta-phosphates), phosphonates (see, for example, U.S. Patent Nos. 3,159,581; 3,213,030; 3,422,021; 3,400,148 and 3,422,137), phytic acid, silicates, carbonates (including bicarbonates and sesquicarbonates), sulphates, and aluminosilicates.
  • polyphosphates exemplified by the tripolyphosphates, pyrophosphates, and glassy polymeric meta-phosphates
  • phosphonates see, for example, U.S. Patent Nos. 3,159,581; 3,213,030; 3,422,021; 3,400,148 and 3,422,137
  • phytic acid silicates
  • carbonates including bi
  • non-phosphate builders are required in some locales.
  • the compositions herein function su ⁇ risingly well even in the presence of the so-called "weak” builders (as compared with phosphates) such as citrate, or in the so-called "underbuilt” situation that may occur with zeolite or layered silicate builders.
  • Suitable silicates include the water-soluble sodium silicates with an Si0 2 :Na 2 ⁇ ratio of from about 1.0 to 2.8, with ratios of from about 1.6 to 2.4 being prefe ⁇ ed, and about 2.0 ratio being most prefened.
  • the silicates may be in the form of either the anhydrous salt or a hydrated salt.
  • Silicates when present, are preferably present in the detergent and laundry compositions described herein at a level of from about 5% to about 50% by weight of the composition, more preferably from about 10% to about 40% by weight.
  • Partially soluble or insoluble builder compounds which are suitable for use in the detergent and laundry compositions, particularly granular detergent compositions, include, but are not limited to, crystalline layered silicates, preferably crystalline layered sodium silicates (partially water-soluble) as described in U.S. Patent No. 4,664,839, and sodium aluminosilicates (water-insoluble).
  • these builders are typically present at a level of from about 1% to 80% by weight, preferably from about 10% to 70% by weight, most preferably from about 20% to 60%) by weight of the composition.
  • NaMSi x ⁇ 2 x + ⁇ -yH2 ⁇ wherein M is sodium or hydrogen, x is a number from about 1.9 to about 4, preferably from about 2 to about 4, most preferably 2, and y is a number from about 0 to about 20, preferably 0 can be used in the compositions described herein.
  • Crystalline layered sodium silicates of this type are disclosed in EP-A-0164514 and methods for their preparation are disclosed in DE-A-3417649 and DE-A-3742043.
  • the most prefe ⁇ ed material is delta-Na2Si ⁇ 5, available from Hoechst AG as NaSKS-6
  • NaSKS-6 silicate builder
  • NaSKS-6 silicate builder does not contain aluminum.
  • NaSKS-6 has the delta-Na2Si ⁇ 5 mo ⁇ hology form of layered silicate.
  • SKS-6 is a highly prefe ⁇ ed layered silicate for use in the compositions described herein herein, but other such layered silicates, such as those having the general formula NaMSi x ⁇ 2 x +ryH2 ⁇ wherein M is sodium or hydrogen, x is a number from 1.9 to 4, preferably 2, and y is a number from 0 to 20, preferably 0 can be used in the compositions described herein.
  • layered silicates from Hoechst include NaSKS-5, NaSKS-7 and NaSKS-11, as the alpha, beta and gamma forms.
  • the delta-Na2Si ⁇ 5 (NaSKS-6 form) is most prefened for use herein.
  • Other silicates may also be useful such as for example magnesium silicate, which can serve as a crispening agent in granular formulations, as a stabilizing agent for oxygen bleaches, and as a component of suds control systems.
  • the crystalline layered sodium silicate material is preferably present in granular detergent compositions as a particulate in intimate admixture with a solid, water-soluble ionizable material.
  • the solid, water-soluble ionizable material is preferably selected from organic acids, organic and inorganic acid salts and mixtures thereof.
  • Aluminosilicate builders are of great importance in most cunently marketed heavy duty granular detergent compositions, and can also be a significant builder ingredient in liquid detergent formulations.
  • Aluminosilicate builders have the empirical formula:
  • the aluminosilicate builder is an aluminosilicate zeolite having the unit cell formula:
  • the aluminosilicate builders are preferably in hydrated form and are preferably crystalline, containing from about 10% to about 28%, more preferably from about 18% to about 22% water in bound form.
  • aluminosilicate ion exchange materials can be crystalline or amo ⁇ hous in structure and can be naturally-occurring aluminosilicates or synthetically derived.
  • a method for producing aluminosilicate ion exchange materials is disclosed in U.S. 3,985,669.
  • Prefe ⁇ ed synthetic crystalline aluminosilicate ion exchange materials useful herein are available under the designations Zeolite A, Zeolite B, Zeolite P, Zeolite X, Zeolite MAP and Zeolite HS and mixtures thereof.
  • the crystalline aluminosilicate ion exchange material has the formula:
  • x is from about 20 to about 30, especially about 27.
  • This material is known as Zeolite A.
  • the aluminosilicate has a particle size of about 0.1-10 microns in diameter.
  • Zeolite X has the formula: Na 8 6[(AlO 2 )86(Si ⁇ 2)i06]-276H 2 O
  • Citrate builders e.g., citric acid and soluble salts thereof (particularly sodium salt), are polycarboxylate builders of particular importance for heavy duty liquid detergent formulations due to their availability from renewable resources and their biodegradability. Citrates can also be used in granular compositions, especially in combination with zeolite and/or layered silicate builders. Oxydisuccinates are also especially useful in such compositions and combinations.
  • succinic acid builders include the C5-C20 al ky! an l alkenyl succinic acids and salts thereof. A particularly prefened compound of this type is dodecenylsuccinic acid.
  • succinate builders include: laurylsuccinate, myristylsuccinate, palmitylsuccinate, 2-dodecenylsuccinate (prefened), 2-pentadecenylsuccinate, and the like.
  • Laurylsuccinates are the prefened builders of this group, and are described in European Patent Application 86200690.5/0,200,263, published November 5, 1986.
  • Fatty acids e.g., C12-C1 g monocarboxylic acids
  • Such use of fatty acids will generally result in a diminution of sudsing, which should be taken into account by the formulator.
  • Dispersants One or more suitable polyalkyleneimine dispersants may be inco ⁇ orated into the laundry compositions of the present invention. Examples of such suitable dispersants can be found in European Patent Application Nos.
  • any suitable clay/soil dispersent or anti-redepostion agent can be used in the laundry compositions of the present invention.
  • polymeric dispersing agents which include polymeric polycarboxylates and polyethylene glycols, are suitable for use in the present invention.
  • Unsaturated monomeric acids that can be polymerized to form suitable polymeric polycarboxylates include acrylic acid, maleic acid (or maleic anhydride), fumaric acid, itaconic acid, aconitic acid, mesaconic acid, citraconic acid and methylenemalonic acid.
  • Particularly suitable polymeric polycarboxylates can be derived from acrylic acid.
  • acrylic acid-based polymers which are useful herein are the water-soluble salts of polymerized acrylic acid.
  • the average molecular weight of such polymers in the acid form preferably ranges from about 2,000 to 10,000, more preferably from about 4,000 to 7,000 and most preferably from about 4,000 to 5,000.
  • Water-soluble salts of such acrylic acid polymers can include, for example, the alkali metal, ammonium and substituted ammonium salts. Soluble polymers of this type are known materials. Use of polyacrylates of this type in detergent compositions has been disclosed, for example, in U.S. 3,308,067.
  • Acrylic/maleic-based copolymers may also be used as a prefe ⁇ ed component of the dispersing/anti-redeposition agent.
  • Such materials include the water-soluble salts of copolymers of acrylic acid and maleic acid.
  • the average molecular weight of such copolymers in the acid form preferably ranges from about 2,000 to 100,000, more preferably from about 5,000 to 75,000, most preferably from about 7,000 to 65,000.
  • the ratio of acrylate to maleate segments in such copolymers will generally range from about 30: 1 to about 1 : 1, more preferably from about 10:1 to 2: 1.
  • Water-soluble salts of such acrylic acid/maleic acid copolymers can include, for example, the alkali metal, ammonium and substituted ammonium salts.
  • Soluble acrylate/maleate copolymers of this type are known materials which are described in European Patent Application No. 66915, published December 15, 1982, as well as in EP 193,360, published September 3, 1986, which also describes such polymers comprising hydroxypropylacrylate.
  • Still other useful dispersing agents include the maleic/acrylic/vinyl alcohol te ⁇ olymers. Such materials are also disclosed in EP 193,360, including, for example, the 45/45/10 te ⁇ olymer of acrylic/maleic/vinyl alcohol.
  • Another polymeric material which can be included is polyethylene glycol (PEG).
  • PEG can exhibit dispersing agent performance as well as act as a clay soil removal- antiredeposition agent.
  • Typical molecular weight ranges for these pu ⁇ oses range from about 500 to about 100,000, preferably from about 1,000 to about 50,000, more preferably from about 1,500 to about 10,000.
  • Polyaspartate and polyglutamate dispersing agents may also be used, especially in conjunction with zeolite builders.
  • Dispersing agents such as polyaspartate preferably have a molecular weight (avg.) of about 10,000.
  • compositions according to the present invention may optionally comprise one or more soil release agents.
  • soil release agents will generally comprise from about 0.01%, preferably from about 0.1%, more preferably from about 0.2% to about 10%, preferably to about 5%, more preferably to about 3% by weight, of the composition.
  • suitable soil release polymers are disclosed in: U.S. Patent Nos.
  • compositions of the present invention herein may also optionally contain a chelating agent which serves to chelate metal ions and metal impurities which would otherwise tend to deactivate the bleaching agent(s).
  • a chelating agent which serves to chelate metal ions and metal impurities which would otherwise tend to deactivate the bleaching agent(s).
  • Useful chelating agents can include amino carboxylates, phosphonates, amino phosphonates, polyfunctionally-substituted aromatic chelating agents and mixtures thereof. Further examples of suitable chelating agents and levels of use are described in U.S. Pat. Nos. 5,705,464, 5,710,115, 5,728,671 and 5,576,282.
  • compositions herein may also contain water-soluble methyl glycine diacetic acid (MGDA) salts (or acid form) as a chelant or co-builder useful with, for example, insoluble builders such as zeolites, layered silicates and the like.
  • MGDA water-soluble methyl glycine diacetic acid
  • these chelating agents will generally comprise from about 0.1% to about 15%, more preferably from about 0.1% to about 3.0% by weight of the detergent compositions herein.
  • Suds suppressor - Another optional ingredient is a suds suppressor, exemplified by silicones, and silica-silicone mixtures. Examples of suitable suds suppressors are disclosed in U.S. Patent Nos. 5,707,950 and 5,728,671. These suds suppressors are normally employed at levels of from 0.001% to 2% by weight of the composition, preferably from 0.01 % to 1 % by weight.
  • Softening agents - Fabric softening agents can also be inco ⁇ orated into laundry detergent compositions in accordance with the present invention.
  • Inorganic softening agents are exemplified by the smectite clays disclosed in GB-A-1 400 898 and in U.S. 5,019,292.
  • Organic softening agents include the water insoluble tertiary amines as disclosed in GB-A-1 514 276 and EP-B-011 340 and their combination with mono C12- C14 quaternary ammonium salts are disclosed in EP-B-026 527 and EP-B-026 528 and di-long-chain amides as disclosed in EP-B-0 242 919.
  • Other useful organic ingredients of fabric softening systems include high molecular weight polyethylene oxide materials as disclosed in EP-A-0 299 575 and 0 313 146. Particularly suitable fabric softening agents are disclosed in U.S. Patent Nos.
  • Levels of smectite clay are normally in the range from 2% to 20%, more preferably from 5% to 15% by weight, with the material being added as a dry mixed component to the remainder of the formulation.
  • Organic fabric softening agents such as the water-insoluble tertiary amines or dilong chain amide materials are inco ⁇ orated at levels of from 0.5% to 5% by weight, normally from 1% to 3% by weight whilst the high molecular weight polyethylene oxide materials and the water soluble cationic materials are added at levels of from 0.1 % to 2%, normally from 0.15% to 1.5% by weight. These materials are normally added to the spray dried portion of the composition, although in some instances it may be more convenient to add them as a dry mixed particulate, or spray them as molten liquid on to other solid components of the composition.
  • Biodegradable quaternary ammonium compounds as described in EP-A-040 562 and EP-A-239 910 have been presented as alternatives to the traditionally used di-long alkyl chain ammonium chlorides and methyl sulfates.
  • Non-limiting examples of softener-compatible anions for the quaternary ammonium compounds and amine precursors include chloride or methyl sulfate.
  • Dye transfer inhibition The detergent compositions of the present invention can also include compounds for inhibiting dye transfer from one fabric to another of solubilized and suspended dyes encountered during fabric laundering and conditioning operations involving colored fabrics. /. Polymeric dye transfer inhibiting agents
  • the detergent compositions according to the present invention can also comprise from 0.001% to 10 %, preferably from 0.01% to 2%, more preferably from 0.05% to 1% by weight of polymeric dye transfer inhibiting agents.
  • Said polymeric dye transfer inhibiting agents are normally inco ⁇ orated into detergent compositions in order to inhibit the transfer of dyes from colored fabrics onto fabrics washed therewith. These polymers have the ability to complex or adsorb the fugitive dyes washed out of dyed fabrics before the dyes have the opportunity to become attached to other articles in the wash.
  • Especially suitable polymeric dye transfer inhibiting agents are polyamine N-oxide polymers, copolymers of N-vinylpynolidone and N-vinylimidazole, polyvinylpy ⁇ olidone polymers, polyvinyloxazohdones and polyvinylimidazoles or mixtures thereof. Examples of such dye transfer inhibiting agents are disclosed in U.S. Patent Nos. 5,707,950 and
  • Additional suitable dye transfer inhibiting agents include, but are not limited to, cross-linked polymers.
  • Cross-linked polymers are polymers whose backbone are interconnected to a certain degree; these links can be of chemical or physical nature, possibly with active groups n the backbone or on branches; cross-linked polymers have been described in the Journal of Polymer Science, volume 22, pages 1035-1039.
  • the cross-linked polymers are made in such a way that they form a three-dimensional rigid structure, which can entrap dyes in the pores formed by the three-dimensional structure.
  • the cross-linked polymers entrap the dyes by swelling.
  • Such cross-linked polymers are described in the co-pending European patent application 94870213.9.
  • pH and Buffering Variation Many of the detergent and laundry compositions described herein will be buffered, i.e., they are relatively resistant to pH drop in the presence of acidic soils. However, other compositions herein may have exceptionally low buffering capacity, or may be substantially unbuffered. Techniques for controlling or varying pH at recommended usage levels more generally include the use of not only buffers, but also additional alkalis, acids, pH-jump systems, dual compartment containers, etc., and are well known to those skilled in the art.
  • adjuncts can include one or more materials for assisting or enhancing laundry performance, treatment of the substrate to be cleaned, or designed to improve the aesthetics of the compositions.
  • Adjuncts which can also be included in compositions of the present invention, at their conventional art-established levels for use (generally, adjunct materials comprise, in total, from about 30% to about 99.9%, preferably from about 70% to about 95%, by weight of the compositions), include other active ingredients such as non-phosphate builders, color speckles, silvercare, anti-tarnish and/or anti- conosion agents, dyes, fillers, germicides, alkalinity sources, hydrotropes, anti-oxidants, perfumes, solubilizing agents, carriers, processing aids, pigments, and pH control agents as described in U.S. Patent Nos. 5,705,464, 5,710,115, 5,698,504, 5,695,679, 5,686,014 and 5,646,101.
  • the invention herein also encompasses a laundering pretreatment process for fabrics which have been soiled or stained comprising directly contacting said stains and/or soils with a highly concentrated form of the laundry composition set forth above prior to washing such fabrics using conventional aqueous washing solutions.
  • the laundry composition remains in contact with the soil/stain for a period of from about 30 seconds to 24 hours prior to washing the pretreated soiled/stained substrate in conventional manner. More preferably, pretreatment times will range from about 1 to 180 minutes.
  • the present invention also encompasses the inclusion of instructions on the use of the particulate solid containing compositions of the present invention with the packages containing the compositions herein or with other forms of advertising associated with the sale or use of the compositions.
  • the instructions may be included in any manner typically used by consumer product manufacturing or supply companies. Examples include providing instructions on a label attached to the container holding the composition; on a sheet either attached to the container or accompanying it when purchased; or in advertisements, demonstrations, and/or other written or oral instructions which may be connected to the purchase or use of the compositions.
  • the instructions will include a description of the use of the composition, for instance, the recommended amount of composition to use in a washing machine to clean the fabric; the recommended amount of composition to apply to the fabric; if soaking or rubbing is appropriate .
  • the compositions of the present invention are preferably included in a product.
  • the product preferably comprises a composition comprising one or more particulate solids of the present invention, and optionally one or more cleaning adjunct materials, and further comprises instructions for using the product to launder fabrics by contacting a fabric in need of cleaning with an effective amount of the composition such that the composition cleans the fabric.
  • a particulate solid is prepared in accordance with the present invention.
  • Particulate solid density-reducing component is any particulate solid density-reducing component described herein.
  • the particulate solid density-reducing component is EXPANCEL® 091 DE available from Expancel of Sweden.
  • compositions of the present invention can be suitably prepared by any process chosen by the formulator, non-limiting examples of which are described in U.S. 5,691,297 Nassano et al., issued November 11, 1997; U.S. 5,574,005 Welch et al., issued November 12, 1996; U.S. 5,569,645 Dinniwell et al., issued October 29, 1996; U.S.
  • compositions of the present invention can be formulated into any suitable laundry detergent composition, non-limiting examples of which are described in U.S. 5,679,630 Baeck et al., issued October 21, 1997; U.S. 5,565,145 Watson et al., issued October 15, 1996; U.S. 5,478,489 Fredj et al, issued December 26, 1995; U.S. 5,470,507 Fredj et al., issued November 28, 1995; U.S. 5,466,802 Panandiker et al., issued November 14, 1995; U.S. 5,460,752 Fredj et al, issued October 24, 1995; U.S. 5,458,810 Fredj et al., issued October 17, 1995; U.S. 5,458,809 Fredj et al., issued October 17, 1995; U.S. 5,288,431 Huber et al, issued February 22, 1994 all of which are inco ⁇ orated herein by reference.

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Abstract

L'invention concerne des produits détergents pour lessive, tels que les détergents liquides aqueux et/ou non aqueux et/ou en gel et les détergents en granulés et/ou en poudre pour grosses lessives, qui comprennent un ou plusieurs solides particulaires renfermant un ou plusieurs composants réducteurs de densité sous forme de particules solides, et un ou plusieurs ingrédients détergents non enzymatiques, et éventuellement une ou plusieurs substances additives de nettoyage classiques.
EP00911769A 1999-02-10 2000-02-09 Solides particulaires faible densite utilises dans les detergents pour lessive Withdrawn EP1151077A1 (fr)

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US11956499P 1999-02-10 1999-02-10
US119564P 1999-02-10
US13152299P 1999-04-29 1999-04-29
US131522P 1999-04-29
PCT/US2000/003521 WO2000047708A1 (fr) 1999-02-10 2000-02-09 Solides particulaires faible densite utilises dans les detergents pour lessive

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WO2024175401A1 (fr) 2023-02-21 2024-08-29 Basf Se Polyalkylène imines alcoxylées modifiées ou polyamines alcoxylées modifiées

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WO2000047708A1 (fr) 2000-08-17
AU3361000A (en) 2000-08-29
JP2002536537A (ja) 2002-10-29

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