MXPA00000185A - Non-aqueous, fatty acid-containing structured liquid detergent compositions - Google Patents

Abstract

A non-aqueous liquid detergent composition comprising a fatty acid mixture characterized in that said fatty acid mixture comprises at least 30%of fatty acid having 16 or more carbon atoms.

Description

COMPOSITIONS NON-AQUEOUS STRUCTURED LIQUID DETERGENTS CONTAINING FATTY ACID FIELD OF THE INVENTION This invention relates to liquid laundry detergent products that are non-aqueous in nature and which are in the form of stable dispersions of particulate material such as bleaching agents and / or other adjuvants of detergent composition.

BACKGROUND OF THE INVENTION Non-aqueous liquid detergents are well known in the art. This class of detergents is particularly interesting for improving the chemical compatibility of components of the detergent composition, in particular bleaching agents. In such non-aqueous products, at least some of the normally solid components of the detergent composition tend to be less reactive with each other than if they had been dissolved in the aqueous liquid matrix. Even though the chemical compatibility of the components can be improved in non-aqueous liquid detergent compositions, the physical stability of such compositions can become a problem. One of The components that can be added to the detergent compositions are fatty acids. Non-aqueous formulations containing fatty acids or their salts are difficult to formulate because those formulations tend to thicken or gel, even at low levels of fatty acids. However, the use of fatty acids would be advantageous, as they are known to act as builders and contribute to the control of foams, especially in rinse cycles, where silicones are less active. Therefore, there remains a need to incorporate soaps fatty in non-aqueous liquid detergents without causing the detergent to swell. Given the foregoing, there is clearly a continuing need to identify and provide liquid detergent compositions containing fatty acid, in the form of non-aqueous liquid products having a profile of suppression of efficient foams together with commercially acceptable pourability. Preferred viscosity scales of 300 cps at 5000 cps, preferably from 500 to 3000 measures at 25 ° C under 20 sec. "1 shear." The preferred performance is in the scale of 1 to 10 Pascal, preferably 1.5 to 7 Pa. measured at 25 ° C. According to this, it is a It is an object of the present invention to provide liquid non-aqueous detergent products, which contain fatty acid, having such characteristics. It has now been discovered that specific present fatty acids provide an effective suppression of foams for detergents non-aqueous liquids without significantly imparting any negative with respect to the rheological properties.

BRIEF DESCRIPTION OF THE INVENTION 5 The present invention provides non-aqueous liquid detergent compositions consisting of specific fatty acids.

DETAILED DESCRIPTION OF THE INVENTION 10 (A) Fatty acids: The non-aqueous liquid detergents of the present invention consist of a fatty acid mixture characterized in that said fatty acid mixture has at least 30% fatty acid having 16 or more 15 carbon atoms. Preferred fatty acid mixtures consist of at least 90% saturated fatty acid and / or at least 50% fatty acid having 16 or more carbon atoms. Highly preferred fatty acid mixtures consist of at least 50% fatty acid having chain lengths of C 16 -C 8. Examples of fatty acids suitable for use in the present invention include pure or hardened fatty acids derived from palmitoleic, safflower, sunflower, soybean, oleic, linoleic, linolenic, risinoleic, colaseed oil or mixtures thereof. The mixtures of saturated and unsaturated fatty acids can also be used herein. It will be recognized that the fatty acid will be present in the detergent compositions mainly in the form of a soap. Suitable cations 5 include, sodium, potassium, ammonium, monoethanolammonium, diethanolammonium, triethanolammonium, tetralalkylammonium, for example, tetramethylammonium to tetradecylammonium, etc. The amount of fatty acid will vary depending on the particular characteristics desired in the final detergent composition. 10 For any detergent composition to be used in automatic laundry machines, the foams should not be formed to the extent that they flood the washing machine. The foam suppressors, when used, are preferably present in a "foam suppressant amount". By "foam suppressing amount" means that the composition formulator can select an amount of this foam control agent that will sufficiently control the foams to result in a low foaming laundry detergent for use in machines automatic washing of clothes, particularly in the rinse. Preferably, the level of the fatty acid mixture is from 0.1% to 20%, more preferably from 0.5% to 15% by weight of the detergent composition.

(B) The non-aqueous detergent compositions of this invention may additionally comprise a liquid phase containing surfactant and low polarity solvent. The components of the liquid and solid phases of the detergent compositions present, as well as the form of the composition, preparation and use, are described in greater detail as follows: (All concentrations and ratios are on a weight basis unless specify otherwise). Surfactant 10 The amount of the surfactant mixture component of the detergent compositions herein may vary depending on the nature and amount of the other components of the composition and depending on the desired rheological properties of the finally formed composition. In general, this surfactant mixture will be used in an amount comprising from about 10% to 90% by weight of the composition. More preferably, the surfactant mixture will comprise about 15% to 50% by weight of the composition. A typical list of classes of anionic, nonionic, ampholytic and zwitterionic surfactants, and species of these surfactants, is given in the U.S.A. 3,664,961 issued to Norris on May 23, 1972. Preferred anionic surfactants include alkyl sulfate surfactants which are salts or water soluble acids. t ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ j ^ g ^^^ gg ^^^^^^^^^^ ^^^^^^^^^^^^^^ of the formula ROSO3M, wherein R is preferably a C10-C2 hydrocarbyl, preferably an alkyl or hydroxyalkyl having an alkyl component of C? 0-C? 8l plus preferably an alkyl or hydroxyalkyl of C-? 2-C-? 5, and M is H or a cation, for example, an alkali metal cation (for example sodium, potassium, lithium) or ammonium or substituted ammonium cation (cations) of quaternary ammonium such as tetramethylammonium cations and dimethylpiperidinium). Highly preferred anionic surfactants include the alkoxylated alkyl sulfate surfactants which are salts or water soluble acids of the formula RO (A) mS03M wherein R is a group C 1 or C 2 -alkyl unsubstituted alkyl or hydroxyalkyl having a C 0 -C 24 alkyl component, preferably a C 12 -C 8 alkyl or hydroxyalkyl, more preferably C 1 -C 2 alkyl or hydroxyalkyl; 5, A is an ethoxy or propoxy unit, m is greater than zero, typically between about 0.5 and about 6, most preferably between 0.5 and 3, and M is H or a cation Which can be, for example, a metal cation (for example, sodium, potassium, lithium, calcium, magnesium, etc.), ammonium cation or substituted ammonium cation. Ethoxylated alkyl sulfates as well as propoxylated alkyl sulphates are contemplated herein. Specific examples of substituted ammonium cations include quaternary ammonium cations such as cations of Tetramethylammonium and dimethylpiperidinium. Exemplary surfactants are polyethoxylated alkyl sulfate (1.0) of C12-C-? 5 (C-? 2-C? 5E (1.0) M) polyethoxylated alkyl sulfate (2.25) of C? 2-C15 (C? 2-C15E (2.25) ) M), polyethoxylated alkyl sulfate (3.0) of C12-C? 5 (C12-C15E (3.0) M) and polyethoxylated alkyl sulfate (4.0) of C? 2-C? ** * ^ ^ at ... ^? ÍML *** *. - ~ ^ -JMB »gI? Í? Il? - ~ »M * ~ * J * ~. ^ Í (C? 2-C-? 5E (4.0) M), where M is conveniently selected from sodium and potassium. Other suitable anionic surfactants to be used are alkyl ether sulfonate surfactants which include linear esters of C8-C2o carboxylic acids (ie, fatty acids) which are sulfonated with gaseous SO3 according to "The Journal of the American Oil Chemists Society" , 52 (1975), pp. 323-329. Suitable starting materials could include natural fatty substances such as those derived from tallow, palm oil, etc. The alkyl ether sulfonate surfactant which is preferred, especially for laundry applications, comprises the alkyl ether sulphonate surfactants of the structural formula: OR R3- CH-C-OR4 SO3M wherein R3 is a C8-C20 hydrocarbyl) preferably an alkyl, or combination thereof, R4 is a CrC6 hydrocarbyl, preferably an alkyl or combination thereof, and M is a cation that forms a water-soluble salt with the alkyl ether sulfonate. Suitable salt-forming cations include metals such as sodium, potassium and lithium and unsubstituted or substituted ammonium cations. Preferably, R3 is C-? 0-C? 6 alkyl and R4 is ^ *** »^ ^ .. ~ *. ., -Ma ^ Jte »^ |. - fflr - * - - *. - ** methyl, ethyl or isopropyl. Methyl ester sulfonates in which R3 is C-io-C-iß alkyl are especially preferred. Other anionic surfactants useful for detersive purposes may also be included in the laundry detergent compositions of the present invention. These may include salts (including, for example, sodium, potassium, ammonium, and substituted ammonium salts such as mono-, di- and triethanolamine salts) of soap, C8-C22 primary or secondary alkanesulfonates, C8-C24 olefinsulfonates. , sulfonated polycarboxylic acids prepared by the sulfonation of the pyrolyzed product of alkaline earth metal citrates, for example, such as those described in the specification of British Patent No. 1, 082,179, C8-C2 alkyl polyglycol ether sulphates (containing up to 10 moles of oxide) ethylene); alkyl glycerol sulfonates, fatty acyl glycerol sulfonates, fatty oleyl glycerol sulfates, alkyl phenol atylene oxide sulphates, paraffin sulphonates, alkyl phosphates, isethionates such as acyl isethionates, N-acyltaurates, alkylsuccinamates and sulfosuccinates, monoesters of sulfosuccinates (especially C mono 2-C-?-8 monoesters) saturated and unsaturated) and diesters of sulfosuccinates (especially saturated and unsaturated C6-C-? 2 diesters), alkylpolysaccharide sulfates such as alkyl polyglycoside sulfates (described below, nonionic non-sulfate compounds) and alkylpolyethoxycarboxylates such as those of the formula RO (CH2CH20) k-CH2COO-M +, wherein R is a C8-C22 alkyl, k is an integer from 1 to 10 and M is a soluble salt-forming cation. The acids of ^ a - ^ - ^. ^, ^^. ^. J, ^^, ..., .. ^, ^ ¿* ^ ¿¿^ ^ -. i. ^^,. . ^ ..M ^. - Resin and hydrogenated resin acids are also suitable, such as rosin, hydrogenated rosin and resin acids and hydrogenated resin acids present in, or derived from, wood oil. Additional examples are described in "Surface Active Agents and Detergents" (Vol. I and II 5 by Schwartz, Perry and Berch). A variety of such surfactants are also generally described in the US patent. 3,929,678, issued December 30, 1975 to Laughlin et al., Column 23, line 58 to column 29, line 23 (incorporated herein by reference). When included therein, the detergent compositions of the present invention typically comprise about 1% to about 40%, preferably about 5% to about 25%, by weight of said anionic surfactants. A class of nonionic surfactants useful in the The present invention is the condensates of ethylene oxide with a hydrophobic portion to provide a surfactant having an average hydrophilic-lipophilic balance (HLB) in the range of 8 to 17, preferably from 9.5 to 14, more preferably from 12 to 14. The hydrophobic (lipophilic) portion can be aliphatic or aromatic in nature, and the length of the group Polyoxyethylene that condenses with any particular hydrophobic group can be easily adjusted to produce a water-soluble compound having the desired degree of balance between the hydrophilic and hydrophobic elements. ^^^^^ i ^^^^^ t .- ^ teM ^ uS || ^ || ^ Especially preferred nonionic surfactants of this type are primary alcohol ethoxylates of C9-C15 containing 3-12 moles of ethylene oxide per mole of alcohol, particularly the primary alcohols of C-? 2-C-? 5 containing 5-8 moles of ethylene oxide per mole of alcohol. Another class of nonionic surfactants comprises the alkylpolyglucoside compounds of the general formula RO (CnH2nO) tZx. Wherein Z is a portion derived from glucose; R is a saturated hydrophobic alkyl group containing from 12 to 18 carbon atoms; t is from 0 to 10 and n is 2 or 3; X is from 1.3 to 4, the compounds include less than 10% unreacted fatty alcohol and less than 50% short chain alkyl polyglycosides. Compounds of this type and their use in detergents are described in EP-B 0 070 077, 0 075 996 and 0 094 118. Also suitable as nonionic surfactants are the polyhydroxy fatty acid amide surfactants of the formula: R2 - C - N - Z, OR R1 ^^^^^ £ ^^^^^^^ & ^ s & ^ a8 * ^^^^^^^ & i ^ ^^^^^^^^^^ B ^ w 2 ^^^^ ^^^^ in which R1 is H, or R1 is C1-4 hydrocarbyl, 2-hydroxyethyl, 2-hydroxypropyl or a mixture thereof, R2 is C5-3 hydrocarbyl ?, and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative thereof. Preferably, R1 is methyl, R2 is a straight Cn.15 alkyl or alkenyl chain such as coconut alkyl or mixtures thereof, and Z is derived from a reducing sugar such as glucose, fructose, maltose, lactose in a reaction of reductive amination.

NON-AQUEOUS LIQUID DILUENT To form the liquid phase of the detergent compositions, the surfactant (mixture) described hereinbefore may be combined with a non-aqueous liquid diluent such as a liquid alcohol alkoxylated material or a low non-aqueous organic solvent. polarity. Alkoxylated Alcohol A component of the liquid diluent suitable for forming the compositions herein comprises an alkoxylated fatty alcohol material. Said materials are in turn also nonionic surfactants. These materials correspond to the general formula: R1 (CmH2mO) nOH wherein R1 is an alkyl group of C8-C-? 6, m is from 2 to 4, and n ranges from about 2 to 12. Preferably, R1 is an alkyl group, which may be primary or secondary, containing about 9 to 15 carbon atoms, most preferably about 10 to 14 carbon atoms. Preferably, also the alkoxylated fatty alcohols will be ethoxylated materials containing about 2 to 12 portions of ethylene oxide per molecule, most preferably about 3 to 10 portions of ethylene oxide per molecule. The alkoxylated fatty alcohol component of the liquid diluent 10 will often have a hydrophilic-lipophilic balance (HLB) ranging from about 3 to 17. Most preferably, the HLB of this material will vary from about 6 to 15, more preferably from 8 to 15. Examples of alkoxylated fatty alcohols useful as one of the essential components of the non-aqueous liquid diluent in compositions 15 herein will include those which are made from alcohols of 12 to 15 carbon atoms and which contain about 7 moles of sodium oxide. ethylene. These materials have been marketed under the tradenames Neodol 25-7 and Neodol 23-6.5 by Shell Chemical Company. Other useful Neodoles include Neodol 1-5, an ethoxylated fatty alcohol having an average of 11 carbon atoms in its alkyl chain with about 5 moles of ethylene oxide; Neodol 23-9, an ethoxylated primary C? 2-Ci3 alcohol having approximately 9 moles of ethylene oxide and Neodol 91-10, an ethoxylated C9-Cn primary alcohol having Í? ^^ ... ^? »* ^. ^ uaft > ..... * f- • IJH ili riií lili || f - < *** ^ ~ - * ^ * »^" 'approximately 10 moles of ethylene oxide Ethoxylated alcohols of this type have also been marketed by Shell Chemical Company under the tradename Dobanol Dobanol 91-5 is a fatty alcohol of Cg-Cn ethoxylated with an average of 5 moles of ethylene oxide and Dobanol 25-7 is a fatty alcohol of C-? 2-C-i5 ethoxylated with an average of 7 moles of ethylene oxide per mole of fatty alcohol. Other examples of suitable ethoxylated alcohols include Tergitol 15-S-7 and Tergitol 15-S-9 both of which are ethoxylated linear secondary alcohols which have been marketed by Union Carbide Corporation. The first is a mixed ethoxylation product of linear C-11-C15 secondary alkanol with 7 moles of ethylene oxide and the latter is a similar product but with 9 moles of ethylene oxide being reacted. Other types of ethoxylated alcohols useful in the present compositions are the higher molecular weight nonionics, such as Neodol 45-11, which are similar condensation products of ethylene oxide of higher fatty alcohols, with the higher fatty alcohol being 14-15 carbon atoms and the number of ethylene oxide groups per mole being about 11. These products have also been marketed by Shell Chemical Company. The alkoxylated alcohol component when used as part of the liquid diluent in the non-aqueous compositions herein will generally be present to the extent of about 1% to 60% by weight of the composition. More preferably, the alcohol component r ^^ ggjg | Í | ¡^ ^ ^^? * ¿S ^^^ (j ^^^^^^^^ - t ^^, ^ alkoxylated will comprise about 5% to 40% by weight of the compositions of More preferably, the alkoxylated alcohol component will comprise about 10% to 25% by weight of the detergent compositions herein 5 Non-aqueous low-polar organic solvent Another component of the liquid diluent that can be part of the detergent compositions of the present invention comprises low polarity non-aqueous organic solvent (s) The term "solvent" is used herein to denote the non-active vehicle or surface portion of the liquid phase of the composition. Essential and / or optional components of the present compositions can actually be dissolved in the phase containing "solvent", other components will be present as dispersed particulate material in the phase containing "solvent." In this way, the term " solvent "no it is designed to require that the solvent material be capable of actually dissolving all the components of the detergent composition added thereto. The non-aqueous organic materials that are used as solvents herein are those that are low polarity liquids. For the purposes of this invention, "low polarity" liquids are those that have very little, if any, tendency to dissolve one of the preferred types of particulate material used in the compositions herein, i.e. peroxygen bleaching agents, perborate ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ßí ^^^^^^^^^^^^ ^^^^^^^^^ sodium or sodium percabonate. In this way, relatively polar solvents such as ethanol should not be used. Suitable types of low polarity solvents useful in the non-aqueous liquid detergent compositions herein include lower alkylene glycol monoalkyl ethers, lower molecular weight polyethylene glycols, lower molecular weight methyl esters and amides, and the like. A type of non-aqueous solvent of low polarity which is preferred for use herein comprises the C2-C2 monoalkyl ethers of C2-C3 mono-, di-, tri- or tetraalkylene glycol. Specific examples of such compounds include diethylene glycol monobutyl ether, tetraethylene glycol monobutyl ether, dipropylene glycol monoethyl ether and dipropylene glycol monobutyl ether. Diethylene glycol monobutyl ether and dipropylene glycol monobutyl ether are especially preferred. Compounds of this type have been marketed under the trade names Dowanol, Carbitol and Cellosolve. Another preferred type of non-aqueous low polarity organic solvent useful herein comprises the lower molecular weight polyethylene glycols (PEGs). Said materials are those having molecular weights of at least about 150. PEGs of molecular weight ranging from about 200 to 600 are more preferred. Another type of non-aqueous and non-polar solvent that is also preferred comprises the methyl esters of weight lower molecular Said materials are those having the general formula: R1-C (O) -OCH3, wherein R1 ranges from 1 to about 18. Examples of suitable lower molecular weight methyl esters include methyl acetate, methyl propionate, methyl octanoate and methyl dodecanoate. The non-aqueous low polarity organic solvents employed must, of course, be compatible and non-reactive with other components of the composition, for example, bleach and / or activators, used in the liquid detergent compositions herein. Said solvent component will generally be used in an amount of about 1% to 60% by weight of the composition. Most preferably, the non-aqueous, low polarity organic solvent will comprise about 5% to 40% by weight of the composition, more preferably about 10% to 25% by weight of the composition.

Concentration of the liquid diluent As with the concentration of the surfactant mixture, the amount of the total liquid diluent in the compositions herein will be determined by the type and amounts of the other components of the composition, and by the desired properties of the composition. . Generally, the liquid diluent will comprise about 20% to 95% by weight of the compositions herein. Most preferably, the liquid diluent will comprise about 50% to 70% by weight of the composition. ^ ^ gj | &jj Solid phase The non-aqueous detergent compositions herein may further comprise a solid phase of particulate material which is dispersed and suspended within the liquid phase. In general, said particulate material will vary in size from about 0.1 to 1500 microns. More preferably, said material will vary in size from about 5 to 500 microns. The particulate material used herein may comprise one or more types of detergent composition components which, in particulate form, are substantially insoluble in the nonaqueous liquid phase of the composition. The types of particulate materials that can be used are described in detail as follows: Peroxygen bleaching agent with optional bleach activators The most preferred type of particulate material useful for forming the solid phase of the detergent compositions herein consists of particles of a peroxygen bleaching agent. Such peroxygen bleaching agents may be organic or inorganic in nature. Inorganic peroxygen bleaching agents are often used in combination with a bleach activator. Useful organic peroxygen bleaching agents include percarboxylic acid bleaching agents and salts thereof. Suitable examples of this class of agents include magnesium monoperoxyphthalate hexahydrate, the magnesium salt of metachloroperbenzoic acid, 4-nonylamino-4-oxoperoxybutyric acid and diperoxydecanedioic acid. Such bleaching agents are described in the U.S.A. 4,483,781, Hartman, November 20, 1984; European Patent Application EP-A-133,354, Banks et al., February 20, 1985; and U.S. Patent 4,412,934, Chung et al., November 1, 1983. Highly preferred bleaching agents also include 6-nonylamino-6-oxoperoxycaproic acid (NAPAA) as described in U.S. Pat. 4,634,551, of January 6, 1987 to Burns et al. The inorganic peroxygen bleaching agents can also be used in the form of particles in the detergent compositions herein. Inorganic bleaching agents are in fact preferred. Such inorganic peroxygen compounds include alkali metal materials of perborate and percarbonate, more preferably the percarbonates. For example, sodium perborate (for example mono- or tetrahydrate) can be used. Suitable inorganic bleaching agents may also include sodium or potassium carbonate peroxyhydrate and equivalent "percarbonate" bleaches, sodium peroxyhydrate pyrophosphate, urea peroxyhydrate, and sodium peroxide. The bleach from persulfate (for example OXONE, manufactured commercially by DuPont) can also be used. Frequently the inorganic peroxygen bleaches will be coated with silicate, borate, sulfate or water-soluble surfactants. For example, percarbonate particles Coated ones are available from several commercial sources such as FMC, Solvay Interox, Tokai Denka and Degussa. Inorganic peroxygen bleaching agents, for example, perborates, percarbonates, etc., are preferably combined with bleach activators, which lead to in situ production in aqueous solution (i.e., during the use of the present compositions for washing / bleaching fabrics) of the peroxy acid corresponding to the bleach activator. Several non-limiting examples of activators are described in U.S. Patent 4,915,854, April 10, 1990 to Mao et al.; and U.S. Patent 4,412,934 of November 1, 1993 to Chung et al. The activators of nonanoyloxybenzen sulfonate (NOBS) and tetraacetylethylene diamine (TAED) are typical. Mixtures thereof can also be used. See also U.S. Patent 4,634,551 to which reference was made above for other typical bleaches and activators useful herein. | Other useful amido-derived bleach activators are those of the formula: R1N (R5) C (O) R2C (O) L or R1C (O) N (R5) R2C (0) L wherein R1 is an alkyl group containing from 6 to 12 carbon atoms, R2 is an alkylene containing from 1 to 6 carbon atoms, R5 is H or alkyl, aryl, or alkaryl containing from 1 to 10 carbon atoms and L is any suitable residual group. A residual group is any group that is displaced from the bleach activator as a consequence of nucleophilic attack on the bleach activator by the perhydrolysis anion. A preferred residual group is phenol sulfonate. Preferred examples of bleach activators of the above formulas include (6-octanamido-caproyl) oxybenzenesulfonate, (6- nonanamidocaproyl) oxybenzenesulfonate, (6-decanamido-caproyl) oxybenzenesulfonate and mixtures thereof as described in patent referred to above in the United States 4,634,551. Such mixtures are characterized herein as (6-C8-C? Or alcamidocaproyl) oxybenzenesulfonate. Another class of useful bleach activators comprises the benzoxazine activators described by Hodge et al. In the United States 4,966,723 of October 30, 1990, incorporated herein by reference. A highly preferred activator of the benzoxazine type is: Still another class of useful bleach activators includes the acyl lactam activators, especially acylcaprolactam and acylvalerolactams of the formulas: wherein R6 is H or an alkyl, aryl, alkoxyaryl or alkaryl group containing from 1 to 12 carbon atoms. Highly preferred lactam activators include benzoylcaprolactam, octanoylcaprolactam, 3,5,5-trimethylhexanoylcaprolactam, nonanoyl caprolactam, decanoyl caprolactam, undecenoyl caprolactam, benzoyl valerolactam, oxtanoyl valerolactam, decanoyl valerolactam, undecenoyl valerolactam, 3,5,5-trimethylhexanoyl 15 valerolactam and mixtures thereof. See also U.S. Patent 4,545,784 issued to Sanderson, October 8, 1985, incorporated herein by reference, which discloses acylcaprolactams that include benzoyl caprolactam, absorbed in sodium perborate. If the peroxygen bleaching agents are used as All or part of the particulate material essentially present will generally comprise from 1% to 30% by weight of the composition. More preferably, the peroxygen bleaching agent will consist of 1% to 20% by weight of the composition. More preferably, the peroxygen bleaching agent ^ j * will be present at the degree of 3% to 15% by weight of the composition. If used, the bleach activators may consist of 0.5% to 20%, more preferably 1% to 10%, by weight of the composition. Frequently, activators are used so that the molar ratio of bleaching agent to activator is in the range of 1: 1 to 10: 1, more preferably 1.5: 1 to 5: 1. In addition, it has been discovered that bleach activators, when agglomerated with certain salts such as citrate, are more chemically stable.

Surfactants Another type of particulate material which may be suspended in the non-aqueous liquid detergent compositions herein includes anionic surfactants which are completely or partially insoluble in the non-aqueous liquid phase. The most common type of agent Anionic surfactant with said solubility properties comprises anionic surfactants of primary or secondary alkyl sulfate. Said surfactants are those produced by sulfation of higher C8-C20 fatty alcohols. The primary alkyl sulfate surfactants conventional have the general formula: ROSO3'M + wherein R is typically a linear C8-C2o hydrocarbyl group, which may be straight or branched chain, and M is a water-solubilizing cation. Preferably, R is a Cι-Cu alkyl, and M is alkali metal. Very preferably, R is approximately C? 2 and M is sodium. The conventional secondary alkyl sulfates can also be used as the essential anionic surfactant component of the solid phase of the compositions herein. Conventional secondary alkylsulfate surfactants are those materials that have the sulfate portion randomly distributed along the hydrocarbyl "base structure" of the molecule. These materials can be illustrated by the structure: CH3 (CH2) n (CHOSO3 M +) (CH2) mCH3 wherein m and n are integers of 2 or larger and the sum of m + n is typically around 9 to 15, and M is a water-solubilizing cation. If used as all or part of the necessary particulate material, auxiliary anionic surfactants such as alkyl sulphates will generally comprise about 1% to 10% by weight of the composition, most preferably about 1% to 5% by weight of the composition . The alkyl sulfate used as all or part of the particulate material is prepared and added to the compositions herein separately from the non-alkoxylated alkylsulphate material which can be part of the alkyl ether sulfate surfactant component used essentially as part of the liquid phase of the present. Organic detergent metering material Another possible type of particulate material which may be suspended in the non-aqueous liquid detergent compositions herein comprises an organic builder material which serves to counteract the effects of calcium, or other ion, and the hardness of the water found during the washing / bleaching use of the compositions herein. Examples of such materials include the alkali metals, citrates, succinates, malonates, fatty acids, carboxymethyl succinates, carboxylates, polycarboxylates and polyacetyl carboxylates. Specific examples include the sodium, potassium and lithium salts of oxydisuccinic acid, mellitic acid, benzenepolycarboxylic acids and citric acid. Other examples of organic phosphonate sequestering agents are those that have been sold by Monsanto under the trade name Dequest and alkanehydroxyphosphonates. Citrate salts are much preferred. Other suitable organic builders include the higher molecular weight polymers and copolymers known to have builder properties. For example, such materials include polyacrylic acid, polymaleic acid and suitable polyacrylic / polymaleic acid copolymers and their salts, such as those sold by BASF under the trademark Sokalan.

If they are used as all or part of the necessary particulate material, the insoluble organic builders may generally comprise about 1% to 20% by weight of the compositions herein. Most preferably, said builder material may comprise about 4% to 10% by weight of the composition.

Inorganic Sources of Alkalinity Another possible type of particulate material that can be suspended in the non-aqueous liquid detergent compositions herein may comprise a material that serves to make the aqueous wash solutions formed from said compositions generally of an alkaline nature. Said materials may or may not also act as builders, that is, as materials that counteract the adverse effect of water hardness on the detergency performance. Examples of suitable alkalinity sources include the water soluble alkali metal carbonates, bicarbonates, borates, silicates and metasilicates. Although not preferred for ecological reasons, water-soluble phosphate salts can also be used as sources of alkalinity. These include the alkali metal pyrophosphates, orthophosphates, polyphosphates and phosphonates. Of all these alkalinity sources, alkali metal carbonates such as sodium carbonate are preferred.

The source of alkalinity, if it is in the form of a hydratable salt, can also serve as a desiccant in the non-aqueous liquid detergent compositions herein. The presence of an alkalinity source that is also a desiccant can provide benefits in terms of chemically stabilizing components of the composition such as the peroxygen bleaching agent that may be susceptible to water deactivation. If it is used as all or part of the particulate material component, the source of alkalinity will comprise about 1% to 15% by weight of the compositions herein. More preferably, the source of alkalinity may comprise about 2% to 10% by weight of the composition. Said materials, although water-soluble, will generally be insoluble in the non-aqueous detergent compositions herein. In this way, said materials will generally be dispersed in the non-aqueous liquid phase in the form of discrete particles.

Optional Components of the Composition In addition to the components of the liquid and solid phase of the composition as described hereinabove, the detergent compositions herein can, and preferably will contain, several optional components. Such optional components may be in liquid or solid form. The optional components can be dissolved in the liquid phase or they can be dispersed within the liquid phase in the form of fine particles or droplets. Some of the materials that may optionally be used in the compositions herein are described in greater detail as follows: Optional organic additives The detergent compositions may contain an organic additive. An organic additive that is preferred is hydrogenated castor oil and its derivatives. Hydrogenated castor oil is a commercially available product sold, for example, in several grades under the brand CASTORWAX.RTM. by NL Industries, Inc., Highstown, New Jersey. Other suitable hydrogenated castor oil derivatives are Thixcin R, Thixcin E, Thixatrol ST, Perchem R and Perchem ST. The hydrogenated castor oil that is especially preferred is Thixatrol ST. 15 Castor oil can be added as a mixture with, for example, stearamide. The organic additive will partially dissolve in the non-aqueous liquid diluent. To form the structured liquid phase which is required for adequate phase stability and acceptable rheology, the organic additive is generally present to the extent of about 0.05% to 20% by weight of the liquid phase. Most preferably, the organic additive comprises about 0.1% to 10% by weight of the non-aqueous liquid phase of the compositions herein. , ', ^ í .._ r ..' i; i.? Í-r: -., ^^^ j | jg ^ ^ ^ ^ ^^^ syte ^ j ^^ sl¡ ^ sr ^ Optional inorganic detergency builders The compositions herein may also optionally contain one or more types of inorganic detergency builders other than those listed here above, which function also as 5 sources of alkalinity. Such optional inorganic builders may include, for example, aluminosilicates such as zeolites. The aluminosilicate zeolites and their use as detergency builders are described in more detail in Corkill et al., U.S. Pat. No. 4,605,509; issued on August 12, 1986, the description of which is incorporated in the present by way of reference. Also suitable for use in the detergent compositions herein are the layered crystalline silicates such as those described in this' 509 patent of E.U.A. If used, optional inorganic builders may comprise about 2% to 15% by weight of the compositions of the invention. present.

Optional Enzymes The detergent compositions herein may also optionally contain one or more types of detergent enzymes. Said 20 enzymes may include proteases, amylases, cellulases and lipases. Such materials are known in the art and are also commercially available. Non-aqueous liquid detergents herein can be incorporated in the form of suspensions, "disks" or "Pellas" Another suitable type of enzyme comprises those in the form of enzyme suspensions in nonionic surfactants. Enzymes in this form have been marketed, for example, by Novo Nordisk under the trade name "LDP". It is especially preferred herein to use enzymes that are added to the compositions herein in the form of conventional enzyme pellets. Said pellets will generally vary in size from about 100 to 1,000 microns, most preferably about 200 to 800 microns and will be suspended throughout the non-aqueous liquid phase of the composition. It has been found that pellets in the compositions of the present invention, compared to other forms of enzyme, exhibit an enzyme stability especially desirable in terms of retention of enzymatic activity with the passage of time. Thus, compositions using enzyme pellets do not need to contain a conventional enzyme stabilization such as is most often used when the enzymes are incorporated in aqueous liquid detergents. If employed, the enzymes will normally be incorporated into the non-aqueous liquid compositions herein at levels sufficient to provide up to about 10 mg by weight, very typically about 0.01 mg to about 5 mg, of active enzyme per gram of the composition . In other words, the non-aqueous liquid detergent compositions herein will typically comprise about 0. 001% to 5%, preferably about 0.01% to 1% by weight, of a commercial enzyme preparation. Protease enzymes, for example, are normally present in such commercial preparations at levels sufficient to provide 0.005 to 0.1 Anson units (AU) of activity per gram of the composition.

Optional guelatary agents The detergent compositions herein may also optionally contain a chelating agent that serves to chelate metal ions, eg, iron and / or manganese, in the non-aqueous detergent compositions herein. Said chelating agents then serve to form complexes with metal impurities in the composition that would otherwise tend to deactivate components of the composition such as the peroxygen bleaching agent. Useful chelating agents can include aminocarboxylates, phosphonates, aminophosphonates, polyfunctionally substituted aromatic chelating agents and mixtures thereof. Aminocarboxylates useful as optional chelating agents include ethylenediaminetetraacetates, N-hydroxyethyl-ethylene-diaminotriacetates, nitrotriacetates, ethylenediaminetetrapropionates, triethylenetetraminohexacetates, diethylenetriaminepentaacetates, ethylenediamine disuccinates and ethanoldiglicines. The alkali metal salts of these materials are preferred.

The aminophosphonates for use as chelating agents in the compositions of this invention are also suitable, when at least low levels of total phosphorus are allowed in the detergent compositions, and include ethylene diamine tetrakis (methylene phosphonates) as 5 DEQUEST. Preferably, these aminophosphonates do not contain alkyl or alkenyl groups with more than about 6 carbon atoms. Preferred chelating agents include hydroxyethyl diphosphonic acid (HEDP), diethylenetriaminepentaacetic acid (DTPA), ethylenediamine disuccinic acid (EDDS) and dipicolinic acid (DPA) and salts of the same. The chelating agent can, of course, also act as a builder during the use of the compositions herein for washing / bleaching fabrics. The chelating agent, if employed, may comprise about 0.1% to 4% by weight of the compositions herein. Most preferably, the chelating agent will comprise about 0.2% to 2% by weight of the detergent compositions herein.

Optional thickening, viscosity control and / or dispersing agents The detergent compositions herein may also optionally contain a polymeric material which serves to improve the ability of the composition to maintain its components in solid particles in suspension. These materials can then act as thickeners, viscosity control agents and / or dispersing agents. Such materials are often polymeric polycarboxylates, but may include other polymeric materials such as polyvinylpyrrolidone (PVP) and polymeric amine derivatives such as ethoxylated and quaternized hexamethylenediamines. The polymeric polycarboxylate materials can be prepared by polymerizing or copolymerizing suitable unsaturated monomers, preferably in their acid form. The unsaturated monomeric acids which 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. The presence of monomeric segments in the polymeric polycarboxylates of the present which do not contain carboxylate radicals such as vinyl methyl ether, styrene, ethylene, etc., is adequate, as long as said segments do not constitute more than about 40% by weight of the polymer. Particularly suitable polymeric polycarboxylates can be derived from acrylic acid. Said acrylic acid-based polymers which are useful herein are the water-soluble salts of polymerized acrylic acid. The average molecular weight of said polymers in acid form preferably ranges from about 2., 000 to 10,000, most preferably around 4,000 to 7,000, and more preferably around 4,000 to 5,000. The water-soluble salts of said acrylic acid polymers may include, for example, the alkali metal salts. Soluble polymers of this type are known materials. The use of polyacrylates of this type in detergent compositions has been described, for example, in Diehl, patent of E.U.A. No. 3,308,067 issued on March 7, 1967! Said materials also perform a detergency builder function. If used, the optional thickening, viscosity control and / or dispersing agents should be present in the compositions herein to the extent of about 0.1% to 4 by weight. Most preferably, said materials may comprise from about 0.5% to 2% by weight of the detergent compositions herein.

Polishes, foam suppressors and / or optional perfumes The detergent compositions herein may also optionally contain brighteners, suds suppressors, silicone oils, bleach catalysts and / or conventional perfume materials. Such brighteners, suds suppressors, silicone oils, bleach catalysts and perfumes must, of course, be compatible and non-reactive with the other components of the composition in a non-aqueous environment. If present, the brighteners, foam suppressors and / or perfumes will typically comprise about 0.01% to 5% by weight of the compositions herein. Suitable bleach catalysts include the manganese-based complexes described in US 5,246,621, US 5,244,594, US 5,114,606 and US 5,114,611. Especially preferred catalysts are the metallo-catalysts as described in the patent applications of E.U.A. Copending Serial No. 60 / 040,629, Serial No. 60 / 039,915, Serial No. 60 / 040,222, Serial No. 60 / 040,156, Serial No. 60 / 040,115, Serial No. 60 / 038,714 and No of series 60/039, 920, filed on March 7, 1997. The catalyst can be protected by dissolving the catalyst in a biopolymer. Suitable biopolymers are described in EP 672 104. A preferred biopolymer is starch.

FORM OF COMPOSITION The liquid detergent compositions containing particles of this invention have a substantially non-aqueous (or anhydrous) character. Although very small amounts of water may be incorporated into said compositions as an impurity in the essential or optional components, the amount of water should not by any means exceed about 5% by weight of the compositions herein. Most preferably, the water content of the non-aqueous detergent compositions herein will comprise less than about 1% by weight. The non-aqueous detergent compositions containing particles herein will be in the form of a liquid. ^^^^ g ^ g ^ jg gg ^ Preparation and use of the composition The non-aqueous liquid detergent compositions herein can be prepared by mixing a non-aqueous liquid phase and subsequently adding to this phase additional particulate components 5 in any convenient order and mixing, for example, by stirring, the resulting combination of components to form the stable phase compositions herein. In a typical procedure for preparing said compositions, certain essential and preferred optional components will be combined in a particular order and under certain conditions. In a first step of a preferred preparation process, the liquid phase containing anionic surfactant is prepared. This preparation step includes the formation of an aqueous suspension containing about 30 to 60% of one or more alkali metal salts of linear C 10 -Ci 6 alkylbenzenesulfonic acid and about 2-15% of one or more non-surfactant salts. In a subsequent step, this suspension is dried to the extent necessary to form a solid material containing less than about 4% by weight of waste water. After the preparation of this solid material containing anionic surfactant, this material can be combined with one or more of the non-aqueous organic diluents to form the liquid phase containing surfactant of the detergent compositions herein. This is done by reducing the anionic surfactant-containing material formed in the described pre-preparation step. a ^^^^^^ mm above in powder form and combining said powder material with a stirred liquid medium comprising one or more of the non-aqueous organic diluents, either surfactant or non-surfactant, or both, as described above. at the moment. This combination is carried out under stirring conditions which are sufficient to form a completely mixed dispersion of particles of the insoluble fraction of the LAS / co-dried salt material along a non-aqueous organic liquid diluent. Subsequently, the particulate material to be used in the detergent compositions herein can be added. Such components, which can be added under high shear agitation, include any optional surfactant particles, particles of substantially all of an organic builder, for example, citrate and / or fatty acid and / or source of alkalinity, for example, Sodium carbonate can be added by continuing to maintain this mixture of composition components under agitation by shear stress. The agitation of the mixture is continued, and if necessary, it can be increased at this point to form a uniform dispersion of insoluble solid phase particulate materials in the liquid phase. The non-aqueous liquid dispersion prepared in this way can be subjected to pulverization or shear agitation. Spraying conditions will generally include maintaining a temperature between about 10 and 90 ° C, preferably between 20 ° C and 60 ° C. The equipment suitable for this purpose includes agitated ball mills, two-ball mills (Fryma), colloidal mills, high-pressure homogenizers, high shear mixers and the like. The colloid mill and high shear mixers are preferred for their high output speed and low maintenance costs. The 5 small particles produced in said equipment will generally vary in size from 0.4-150 microns. Agitation is then continued, and if necessary, it can be increased at this point to form a uniform dispersion of insoluble solid phase particles in the liquid phase. In a second processing step, the particles of the bleach precursor are mixed with the suspension of the first mixing step in a second mixing step. This mixture is then subjected to wet pulverization in such a way that the average particle size of the bleach precursor is less than 600 microns, preferably between 50 and 500 microns, most preferably between 100 and 400 microns. After some or all of the above solid materials have been added to this stirred mixture, the highly preferred peroxygen bleach particles can be added to the composition, again while the mixture is kept under stirring. shear stress. In a third processing step, the activation of the organic additive is obtained. The organic additives are subjected to wetting and dispersing forces to reach a dispersed state. It is inside ^^^^^^ to &j ^^^^^ auSj? ^^^^^^^ tm ^? ^^^^ of the ability of an expert in the art to activate the organic additive. The activation can be done according to the one described by Rheox, in the Rheology Handbook, A practical guide to rheological additives. There are basically three different stages. The first step is to add the agglomerated powder to the solvent. This combination is carried out under conditions of agitation (shear, heat, stage 2) which are sufficient to lead to complete de-agglomeration. With continuous agitation and heat development over a period of time, the solvent-swollen particles of the organic additive are reduced to their active state in step 3. By adding solid components to the non-aqueous liquids according to the above procedure, it is advantageous to keep the moisture content unbound and free of these solid materials below certain limits. The moisture in said solid materials is frequently present at levels of 0.8% or more (see the method described below). By reducing the free moisture content, for example, by fluidized bed drying, of solid particulate materials at a free moisture level of 0.5% or less prior to their incorporation into the detergent composition matrix, significant stability advantages can be obtained for the resulting composition.

Determinations of free and total water For the purposes of this patent application, and without wishing to be bound by theory, reference is made to "free water" as the amount of water that can be detected after the removal of the solid and undissolved components of the product, while "total water" refers to the amount of water that is present in the product as a whole, either bound to solids (for example, water of hydration), dissolved in the liquid phase or 5 in any other form. One method of determining water that is preferred is the so-called "Karl Fischer titration" method. Other Karl Fischer titration methods, for example, NMR, microwave or IR spectrometry may also be suitable for the determination of water in the liquid part of the product and in the complete product as described below. 10 The "free water" of a formulation is determined in the following manner. At least one day after the preparation of the formula (to allow equilibration), a sample is subjected to centrifugation until a transparent layer is obtained visually and free of solid components. This transparent layer is separated from the solids, and a heavy sample is enters directly into a coulometric Karl Fischer titration vessel. The water level determined in this way (mg of water / kg of transparent layer) is known as "free water" (in ppm). The "total water" is determined by first extracting a heavy amount of the finished product with a polar and anhydrous extraction liquid. He The extraction liquid is selected in such a way that interferences of undissolved solids are minimized. In many cases, dry methanol is a preferred extraction liquid. Normally, the extraction procedure reaches a balance within a few hours - this it needs to be validated for different formulations - and can be accelerated by sonification (ultrasonic bath). After that time, a sample of the extract is centrifuged or filtered to remove the solids, and a known aliquot is then introduced into the Karl Fischer titration cell (coulometric or volumetric). The value found in this way (mg of water / kg of product) is referred to as the "total water" of the formulation. Preferably, the non-aqueous liquid detergent compositions of the present invention comprise less than 5%, preferably less than 3%, most preferably less than 1% free water.

Viscosity and Relaxation Measurements The non-aqueous liquid detergent compositions containing particles herein will be relatively viscous and phase stable under conditions of commercialization and use of said compositions. Frequently, the viscosity of the compositions herein will vary from about 300 to 10,000 cps, most preferably about 500 to 3000 cps. The physical stability of these formulations can also be determined by relaxation measurements. Frequently, relaxation of the compositions herein will vary from about 1 to 20 Pa, most preferably around 1.5 to 10 Pa. For the purpose of this invention, viscosity and relaxation are measured with a Carri Med CSL2100 rheometer according to the invention. method described below.

The rheological properties were determined by a constant voltage rheometer (Carri-Med CSL2100) at 25 ° C. A parallel plate configuration with a disc radius of 40 mm and a layer thickness of 2 mm was used. The shear stress varied between 0.1 Pa and 125 Pa. The reported viscosity was the value measured at a shear rate of approximately 20 s "1. The effort to relax was defined as the previous effort whose disc movement was detected. This implies that the shear rate was below 3 x 10"4 s" 1. The compositions of this invention, prepared as described above herein, can be used to form aqueous wash solutions for use in washing and bleaching fabrics. In general, an effective amount of said compositions is added to water, preferably in a conventional automatic laundry washing machine, to form said aqueous washing / bleaching solutions. The aqueous wash / bleach solution formed in this manner is then contacted, preferably under agitation, with the fabrics which will be washed and bleached therewith. An effective amount of the liquid detergent compositions herein added to water to form the aqueous wash / bleach solutions may comprise sufficient amounts to form about 500 to 8,000 ppm of the composition in aqueous solution. Most preferably, about 800 to 5,000 ppm of the compositions detergents of the present will be provided in the aqueous wash / bleach solution. The following examples illustrate the preparation and performance advantages of the non-aqueous liquid detergent compositions of the present invention. However, said examples do not necessarily attempt to limit or otherwise define the scope of the present invention.

EXAMPLE II Preparation of a non-aqueous liquid detergent composition 1) Part of the butoxy-propoxy-propanol (BPP) and a non-ionic ethoxylated alcohol surfactant CnEO (5) (Genapol 24/50) are mixed for a short time (1-5 minutes) using a paddle impeller in a mixing tank in a single phase. 2) LAS is added to the BPP / NI mixture after heating the BPP / NI mixture to 45 ° C. 3) If required, the liquid base (LAS / BPP / NI) is pumped into drums. Molecular sieves (type 3A, 4-8 meshes) are added to each drum at 10% of the net weight of the liquid base. The molecular sieves are mixed in the liquid base using individual paddle turbine mixers and drum spinning techniques. The mixing is carried out under a cover of nitrogen to prevent the collection of moisture from the air. The total mixing time is 2 hours, after which 0.1-0.4% of the moisture in the liquid base is removed. The molecular sieves are removed by passing the liquid base through a sieve of 20-30 mesh. The liquid base is returned to the mixing tank. 4) The additional solid ingredients are prepared for addition to the composition. Such solid ingredients include the following: Sodium carbonate (particle size 100 microns) Sodium citrate dihydrate Maleic acrylic copolymer (BASF Sokalan) Brightener (Tinopal PLC) Tetrasodic hydroethylidene diphosphonic acid salt (HEDP) Sodium diethylenetriaminepentamethylenephosphonate Ethylenediamine disuccinic acid (EDDS) These solid materials, which are all pulverizers, are added to the mixing tank and mixed with the liquid base until they are uniform. This takes about 1 hour after the addition of the last powder. The tank is covered with nitrogen after the addition of the powders. A particular order of addition for these powders is not critical. 5) The batch is pumped once through a Fryma colloid mill, which has a simple rotor-stator configuration in which a high-speed rotor rotates within a stator that creates a zone of high shear stress. This reduces the particle size of all solids. This leads to an increase in the performance value (ie, structure). The batch is then reloaded into the mixing tank after cooling. 6) The bleach precursor particles are mixed with the pulverized suspension of the first mixing step in a second step of mixed. This mixture is then subjected to wet pulverization in such a way that the average particle size of the bleach precursor is less than 600 microns, preferably between 50 to 500 microns, most preferably between 100 and 400 microns. 7) Other solid materials may be added after the first processing step. These include the following: Sodium percarbonate (400-600 microns) Protease enzyme, cellulase and amylase pellets (400-800 microns, specific density less than 1.7 g / mL) Titanium dioxide particles (5 microns) 15 Catalyst These Non-sprayable solid materials are then added to the mixing tank followed by the liquid ingredients (perfume and suds suppressor based on silicone, fatty acid / silicone). The batch is then mixed for one hour (under a nitrogen blanket). 20 (8) As a final step to the formulation, hydrogenated castor oil is added to part of the BBP in a colloidal mixer at high speed, the dispersion is heated to 55 ° C. The shear time is approximately 1 hour.

The resulting composition has the formula described in Table 1. The catalyst was prepared by adding modified starch with octenyl succinate., to water in the approximate ratio of 1: 2. The catalyst is then added to the solution and mixed until dissolved. The composition of the solution is: catalyst 5% starch 32% (starch includes 4-6% bound water) water 63% The solution is then spray-dried using a Niro Atomizer laboratory spray dryer. The inlet of the spray dryer is set at 200 ° C, and the atomization air is about 4 bar. The drop in air pressure in the procedure is 30-35 mm of water. The feed rate of the solution is set to obtain an exit temperature of 100 ° C. The powder material is collected at the base of the spray dryer. The composition is: Catalyst 15% starch (and bound water) 85% The particle size is 15 to 100 μm leaving the dryer. ^ _ ^ ^ ^ f¡ii? í ?? i ^ TABLE 1 Composition non-aqueous liquid detergent with bleach Wt% wt% active Active ingredient Sodium salt of LAS 16 15 Alcohol ethoxylated C11 EO = 21 May 20 BPP 19 19 Sodium citrate 4 May Sodium salt of [4- [N-nonanoyl-6- aminohexanoiloxijbencensulfonato] salt polyethoxylated hexamethylenediamine chloride cuatemizada methyl 1.2 ethylenediaminedisuccinic acid January 1 sodium carbonate 7 July maleic-acrylic copolymer March 3 Pellets protease 0.40 0.4 Pellets amylase 0.8 0.8 Pellets cellulase 0.50 0.5 sodium Percarbonate 16 - sodium perborate - 15 Fatty acid * 1.5 1.5 Perfume 0.5 0.5 Titanium dioxide 0.5 0.5 Brightener 0.14 0.2 Thixatrol ST 0.1 0.1 Catalyst 0.03 0.03 Speck 0.4 0.4 Miscellaneous ingredients up to 100% * More than 50% C? 6-C? 8 fatty acid, more than 90% saturated fatty acid.

The resulting table 1 composition is a structured, stable, pourable and anhydrous heavy-duty laundry detergent liquid that provides excellent stain and dirt removal performance when used in normal fabric washing operations. The viscosity measurement at 25 ° C is 2200 cps at a cutting speed of 20s "\ the yield is 8.9 Pa at 25 ° C.

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Claims (9)

NOVELTY LEAVES THE INVENTION CLAIMS

1. - A non-aqueous liquid detergent composition consisting of a fatty acid mixture characterized in that said fatty acid mixture consists of at least 30% of fatty acid having 16 or more carbon atoms.

2. A non-aqueous liquid detergent composition according to claim 1 comprising at least 90% saturated fatty acid.

3. A non-aqueous liquid detergent composition according to claims 1-2, characterized in that said fatty acid mixture comprises at least 50% of fatty acid having 16 or more carbon atoms.

4. A non-aqueous liquid detergent composition according to claims 1-3, characterized in that said fatty acid mixture comprises at least 50% of fatty acid having a chain length of Ci6-C? 8- 5.- A composition non-aqueous liquid detergent according to claims 1-4, characterized in that the level of the fatty acid mixture is from 0.1% to 20% by weight of the detergent composition.

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6. - A non-aqueous liquid composition according to claims 1-5 further comprising a bleaching agent and / or a bleach precursor.

7. A non-aqueous liquid detergent composition according to claim 6, characterized in that the bleaching agent is selected from percarbonate and / or perborate.

8. A non-aqueous liquid detergent composition according to claims 1-7 having a viscosity of between 300-5,000 cps at 25 ° C under shear stress of 20 sec. "9. A non-aqueous liquid detergent composition of according to claims 1-8 characterized in that the yield is from 1 to 10 Pa at 25 ° C.

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