MXPA05002611A - Using cationic celluloses to enhance delivery of fabric care benefit agents. - Google Patents

Abstract

Laundry product compositions containing a stable mixture of at least one water insoluble fabric care benefit agent and at least one delivery enhancing agent that is preferably a silicone derivative. Detergent laundry product compositions containing from about 1% to about 80%, by weight of the composition, of a detersive surfactant that is an anionic surfactant, cationic surfactant, nonionic surfactant, amphoteric surfactant, zwitterionic surfactant, or a mixture thereof; from about 0.1% to about 10%, by weight of the composition, of a water insoluble fabric care benefit agent; from about 0.01% to about 5%, by weight of the composition, of a delivery enhancing agent; and wherein the ratio of the delivery enhancing agent to the fabric care benefit agent is from about 1:50 to about 1:1.

Description

USE OF CATIONIC CELLULOSES TO IMPROVE THE SUPPLY OF BENEFICIAL AGENTS FOR THE CARE OF THE FABRICS FIELD OF THE INVENTION The present invention relates to the use of cationic celluloses to improve the deposition of water-insoluble beneficial agents for the care of fabrics as water-insoluble silicone derivatives; during the laundry process.

BACKGROUND OF THE INVENTION The laundry process of textile articles is necessary to remove stains, odors and dirt. However, said process can produce in the articles mechanical and chemical damages that possibly derive in wrinkles, discoloration of color, transfer of dye, pellets / lint, wear, deterioration of fibers, rigidity and other undesired consequences in the fabrics. Therefore, many laundry products such as detergents, fabric conditioners and other products that are added in the washing, rinsing and drying often include one or more beneficial agents for the care of fabrics whose purpose is to reduce or avoid those consequences.

However, due to their poor supply efficiency in fabrics or textile articles during the laundry process, the benefits provided by these beneficial agents for the care of the fabrics are often limited. In general, the affinity between these agents and the fabrics / garments is very limited due to the lack of natural forces of attraction between the agents and the fabrics. This is because the formulation of most fabric care agents used in laundry products is anionic or non-ionic to avoid interaction with anionic surfactants that can lead to negative cleaning results. Since most textile fibers such as cotton, wool, silk, nylon and the like carry a slightly anionic charge to the laundry solution, the forces between the fabric care agent and the fabric are repulsive rather than forces of attraction, thus minimizing the efficiency of the supply. This is especially true in the case of water-insoluble beneficial agents, examples of which include but are not limited to: water-insoluble silicone derivatives and the like. Due to its insolubility in water, the water-insoluble beneficial agents for the care of the fabrics are usually incorporated in the formulations of laundry products in some kind of stable form in water as an emulsion, a latex, a dispersion, a suspension or the like. When that beneficial agent is added to the laundry product stably in water, its stability in the solution increases. This is due to the existence of a significant amount of surfactant in the laundry products. In these products, the surfactant tends to act as an emulsifier, a dispersant, a suspending agent or the like, thereby increasing the stability of the emulsion, dispersion or suspension containing the water-insoluble beneficial agent for the care of the fabrics. As a result of this stabilization, the affinity of said insoluble beneficial agent is very limited. Most of the water-insoluble beneficial agents for fabric care tend to remain in the solution and therefore are discarded with the washing solution, thus limiting the amount of beneficial agent that can be deposited on the fabric. Accordingly, there is a need to improve the efficacy of the supply of water-insoluble beneficial agents for the care of fabrics that are incorporated in laundry products.

BRIEF DESCRIPTION OF THE INVENTION The laundry products of the present invention contain at least one water-insoluble beneficial agent for the care of fabrics and at least one supply enhancing agent or cationic cellulose-based storage aid. Without theoretical limitations of any kind, it is believed that the laundry products of the present invention improve the efficiency of the supply in the fabrics of the water-insoluble beneficial agents for the care of the fabrics that are incorporated in them by including the delivery agents of cationic cellulose of the present invention. Surprisingly it has been found that the use of cationic celluloses as supply enhancing agents, greatly improves the supply of the beneficial agent in the fabrics, which in any other way would not be possible. Although cationic celluloses can act as beneficial agents in fabrics, the amount of cationic cellulose needed to provide important performance advantages is much greater than the amount of this type of cellulose needed as a supply enhancing agent. However, the incorporation of large amounts of cationic cellulose often has a negative effect on cleaning performance. This negative cleaning effect caused by the large amount of cationic cellulose will generally prevent its application in laundry detergent modalities as the beneficial agents alone. However, the concentration of cationic cellulose as the supply enhancing agent is important; The impact on cleanliness is generally very limited. Furthermore, it has surprisingly been found that the addition of the cationic celluloses of the present invention in laundry products can provide the fabrics with a considerable improvement in the supply / deposition of the water-insoluble beneficial agent versus the individual use of said agent. In fact, it is surprising to find that the addition in the washing machine of the laundry detergent containing cationic celluloses and the beneficial agent for the care of the fabrics improves the supply / deposition of the beneficial agent in the fabric between 5 and 10 times compared to the addition individual of the beneficial agent. It is also surprising that the enhancement of the supply / deposit can be achieved by mixing the cationic cellulose and the fabric care agent as an additive for washing a fabric of a fabric care compound or formulating these two ingredients in the detergent. for laundry or other laundry products. The water-soluble beneficial agents useful herein include water-insoluble silicone derivatives. The approximate particle size of the water-insoluble beneficial agent for fabric care preferably varies between 1 nm and 100 μm. The present invention also contains a detergent or fabric softening composition composed of: a. Approximately between 1 and 80% of an anionic, cationic, nonionic, amphoteric, zwitterionic surfactant or a combination thereof by weight; b. about 0.1 to 10% by weight of a water-insoluble beneficial agent, wherein said beneficial agent insoluble in water is a water-insoluble silicone derivative or a mixture thereof; and c. approximately between 0.01 and 2% of a cationic cellulose. Preferably, the approximate ratio of the supply enhancing agent to the beneficial agent for fabric care is from 1:50 to 1: 1.

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the use of cationic cellulose to enhance the deposition of water-insoluble beneficial agents for the care of the fabric, including water-insoluble silicone derivatives during the laundry process. Without theoretical limitations of any kind, the use of cationic cellulose-based supply enhancing agents of the present invention makes it possible to improve the supply of the water-insoluble beneficial agent for the care of the fabrics in them by increasing the softening of the fabrics, the protection of color, reduction of balls / fluff, the benefits of anti-abrasion and anti-wrinkle and other benefits of this type in garments and fabrics. Cationic cellulose, called a supply enhancing agent, and the water-insoluble beneficial agent for the care of the fabrics of the present invention can be mixed before being formulated, added or used together with the composition of the laundry product. The two components can be formulated into separate laundry products with different order of addition. The two components of the present invention can also be mixed in situ before they are incorporated into the composition of the laundry product. They can also be applied directly on the fabric together or separately. The deposition in the fabric of the water-insoluble beneficial agent for fabric care is greatly improved when the delivery enhancing agent of the present invention is used and in some cases that improvement is doubled (ie, by using the enhancing agent of the present invention the deposition of the beneficial agent in the fabrics may increase approximately 100% or more compared to the individual use of the water-insoluble beneficial agent). Preferably, the deposit in the fabric will increase by at least about 200%. Since the fabric care benefit is directly related to the amount of the beneficial agent deposited, the performance of the water-insoluble beneficial agent in the fabric should theoretically increase proportionally, approximately 100% and preferably at least approximately 200%. The approximate ratio of the water-insoluble beneficial agent to the fabric care agent should be from 1:50 to 1: 1 and preferably from 1: 20 to 1: 2. The two components of the present invention can be premixed to form a stable compound before its formulation in a laundry product, its addition during the laundry process or its application in a fabric. The two components can also be formulated independently in laundry products with different order of addition. Likewise, they can be mixed to form the fabric care compound of the present invention in situ after formulation in the laundry product or addition during the laundry process.

All percentages, ratios and ratios herein are based on weight, unless otherwise indicated. All documents cited herein are incorporated herein by reference.

SUPPLY ENABLING AGENTS As used herein, "supply enhancing agent" refers to any cationic cellulose or combination of cationic celluloses that substantially improves the deposit in the fabrics of the water-insoluble beneficial agent for the care of the fabrics during the operation of laundry. The delivery enhancing agent of the present invention has a considerable binding capacity with the beneficial agent insoluble in water for the care of the fabrics. It also has a considerable affinity with natural textile fibers, such as cotton fibers. An effective enhancing agent preferably has a considerable binding capacity with beneficial agents insoluble in water for fabric care by means of physical forces such as van der Waals forces or non-covalent chemical bonds such as ionic or hydrogen bonding. It preferably has a great affinity with natural textile fibers, especially cotton fibers. The delivery enhancing agent must be soluble in water and its molecular structure must be flexible so as to cover the particle surface of the water-insoluble beneficial agent for the care of the fabrics or to hold several particles together. Therefore, the supply enhancing agent is preferably not crosslinked nor has a network structure since these generally do not have flexibility at the molecular level. If it is desired to drive the beneficial agent for the care of the fabric on the fabric, the net charge of the supply enhancing agent will preferably be positive to avoid repulsion between the beneficial agent for the care of the fabric and the fabric since most of the The fabrics are composed of textile fibers with slightly negative charges in aqueous environments. Examples of fibers with a somewhat negative charge in water include but are not limited to cotton, rayon, silk, wool, etc. The supply enhancing agent is preferably a cationic or amphoteric polymer. The amphoteric polymers of the present invention also have a net cationic charge, ie the total cationic charges in these polymers will exceed the total anionic charge. The approximate degree of substitution of the cationic charge may vary between 0.01 (a cationic charge per 100 polymeric repeat units) and 1.00 (a cationic charge in each polymeric repeat unit) and preferably between approximately 0.01 and 0.20. The positive charges can be in the main chain or in the secondary chains of the polymers. While there are several ways to calculate the charge density of cationic celluloses, the degree of substitution of the cationic charge can be calculated simply by estimating the cationic charges per 100 units of glucose repetition. A cationic charge per 100 repeating units of glucose equals 1% of the charge density of the cationic celluloses.

Preferred cationic celluloses for use herein may be modified hydrophobically and have an approximate molecular weight of 50,000 to 2,000,000, more preferably between 100,000 and 1,000,000 and most preferably between 200,000 and 800,000. These cationic materials have substituted anhydraglucose repeating units corresponding to the following general structural formula: FORMULA STRUCTURAL I wherein each R1, R2, R3 is independently H, CH3) C8-24 alkyl R5 (straight or branched) CH2CH-O ^ -RX or mixtures thereof; n approximately between 1 and 10; Rx is H, CH3, C8.24 alkyl (branched linear) or mixtures thereof; Z is a water-soluble anion, preferably a chlorine or bromine ion; R5 is H, CH3, CH2CH3, or mixtures of these; R7 is CH3, CH2CH3, a phenyl group, an alkyl group of Cs-2 (linear or branched) or a mixture thereof; and each R8 and R9 is independently CH3, CH2CH3, phenyl or mixtures of these: R4 is H, or mixtures thereof where P is a repeating unit of an addition polymer formed by means of radical polymerization of a cationic monomer as in wherein 71 is a water-soluble anion, preferably a chlorine, bromine ion or mixtures of these and q is between about 1 and 10. Water-soluble anions useful herein include C 8 -C 24 alkyl sulfates, C8-C24 alkylalkoxy sulfates, preferably alkyl ethoxy sulphates, C8-C24 alkylsulfonates, C8-C16 alkylbenzene sulphonates, xylene sulphonates, toluene sulphonates, cumene sulfonates, fatty alkyl carboxylates, chlorine ions, bromine ions or mixtures of these, among which chlorine or bromine ions are preferred. The approximate loading density of the cationic celluloses of the present (defined by the amount of cationic charges per 100 units of glucose preferably varies between 0.5% and 60%, more preferably between 1% and 20% and most preferably between 2 % and 10% The approximate alkyl substitution in the anhydroglucose rings of the polymer varies between 0.01% and 5% and more preferably between 0.05% and 2% per glucose unit of the polymeric material.Casionic cellulose can be slightly cross-linked with a dialdehyde as glyoxyl to prevent the formation of lumps, nodules or other agglomerations when added to water at room temperature.

Also, the cationic cellulose ethers of Structural Formula I include those commercially distributed and also materials that can be prepared by conventional chemical modification of distributed materials. The cellulose ethers of the structural Formula I include the polymers JR 30M, JR 400, JR 125, LR 400 and LK 400 distributed by Dow Chemical.

WATER INSOLUBLE BENEFICIAL AGENTS FOR THE CARE OF FABRICS As used herein, "water insoluble agent for the care of fabrics" refers to silicone derivatives that are insoluble in water and can provide fabric care benefits such as increased softening, protection of color, reduction of balls / fluff, anti-abrasion, anti-wrinkle and the like in garments and fabrics, especially in garments and cotton fabrics when there is an adequate amount of material in the garment / cloth. Some non-limiting examples of water-insoluble beneficial agents for the care of fabrics include water-insoluble silicone derivatives and mixtures of these. Water Insoluble Silicone Derivatives For the purposes of the present invention, the water-insoluble silicone derivatives can be any silicone derivative that is not soluble in water, but can be prepared as an emulsion, latex, dispersion, suspension and the like with suitable surfactants before formulating laundry products. Any silicone capable of being directly emulsified or dispersed on laundry products will also be included in the present invention since laundry products usually contain a number of different surfactants that can behave as emulsifiers., dispersing agents, suspending agents, etc. and which thereby facilitate the emulsification, dispersion, and / or suspension of the water-insoluble silicone derivative. By depositing them on fabrics, these derivatives of silicones can provide one or more benefits for the care of fabrics including anti-wrinkle benefits, color protection, reduction of pellets / lint, anti-abrasion benefits, increased softening of the fabric and Similary. Water-insoluble silicone derivatives of the present invention include but are not limited to 1) groups of silicones not added to functional groups such as polydimethylsiloxane (PDMS), including linear, grafted and cyclic structures and 2) silicones or polymers added to functional groups with one or more types of functional groups such as amino, alkoxy, alkyl, phenyl, polyether, acrylate, siliconhydride, mercaptoproyl, carboxylic acid, quaternized nitrogen, etc. With respect to the silicone emulsions, the particle size may be in a range of least to greatest preference from 1 nm to 100 pm and from about 10 nm to 10 m including microemulsions (<150 nm), standard emulsions (approximately 200 nm to 500 nm) and macroemulsions (1 micron to 20 and approximately m). Water-soluble silicone derivatives are not within the scope of the present invention.

Some non-limiting examples of commercially available water insoluble silicone derivatives include SM2125 commercially available from GE Silicones, and DC8822 and DC 200 Fluid both commercially available from Dow Corning.

LAUNDRY PRODUCTS A non-restrictive list of optional components of the present invention includes laundry detergents, fabric conditioners and other products that are added in the wash, rinse and dryer. The laundry products may contain about 0.1% to 20% and preferably about 0.2% to 10% of the water-insoluble beneficial agent for the care of the fabrics. Likewise, they may also contain approximately between 0.01% and 5% and preferably approximately between 0.02% and 2% of the supply enhancing agent. Conventional components of fabric conditioners include but are not limited to surfactants and the like. Conventional components of detergent compositions include but are not limited to surfactants, bleach and bleach activators, enzymes and enzyme stabilizing agents, foam enhancers or suppressors, anti-lust and anti-corrosion agents, non-additive alkalinity sources, chelating agents, organic fillers and inorganic, solvents, hydrotropes, optical brighteners, dyes, perfumes and modified cellulose ether agents for the treatment of fabrics. The fabric care agents or the delivery enhancing agent described in the present invention may be a component or may be added in a detergent composition or a fabric conditioner. The detergent composition may be in granular, liquid or tablet form. The detergent compositions of the present invention can be made in accordance with US Pat. num. 6,274,540 and 6,306,817, and the WIPO publications nos. WO 01/16237 published March 8, 2001 and WO 01/16263 published March 8, 2001.

I. Surfactant The laundry products of the present invention may contain between about 1% and 80% of a surfactant by weight. Preferably, those compositions contain approximately between 5% and 50% of a surfactant by weight. The detergent surfactants which are used may be of the anionic, nonionic, zwitterionic, ampholytic or cationic type, or may comprise compatible mixtures of these types. The detergent surfactants useful herein are described in U.S. Pat. no. 3,664,961, granted to Norris on May 23, 1972, no. 3,919,678 issued to Laughlin et al. on December 30, 1975, no. 4,222,905 granted to Cockrell on September 16, 1980 and no. 4,239,659 issued to Murphy on December 16, 1980. Anionic and non-ionic surfactants are preferred.

The ammonium surfactants that are useful can, by themselves, be of several different types. For example, the water-soluble salts of higher fatty acids, ie, "soaps", are useful anionic surfactants in the compositions of the present invention. This includes alkali metal soaps, such as, for example, sodium, potassium, ammonium and alkylammonium salts of higher fatty acids containing from about 8 to 24 carbon atoms, and preferably from about 12 to 18 carbon atoms. Soaps can be made by direct saponification of fats and oils or by neutralization of free fatty acids. The sodium and potassium salts of the fatty acid mixtures derived from tallow and coconut oil, ie sodium or potassium tallow and coconut soap are particularly useful. Additional anionic non-soap surfactants which are suitable for use in the present invention include the water-soluble salts, preferably the alkali metal salts, and ammonium salts of organic sulfuric acid reaction products they have in their molecular structure an alkyl group containing from about 10 to 20 carbon atoms and a sulfonic acid or a sulfuric acid ester. (The term "alkyl" includes the alkyl part of the acyl groups.) Examples of this group of synthetic surfactants are: a) ammonium alkyl sulphates, sodium and potassium, especially those obtained by sulfatar higher alcohols (of C8-Ci8 carbon atoms), such as those pred by reducing tallow glycerides or coconut oil; b) sulfates of alkylpolyethoxylates of ammonium, sodium and potassium, in particular those in which the alkyl group contains from 10 to 22, preferably from 12 to 18 carbon atoms, and wherein the polyethoxylate chain contains from 1 to 15 , preferably from 1 to 6 ethoxylate entities; and c) potassium and sodium alkylbenzene sulphonates in which they contain from about 9 to 15 carbon atoms, in a straight or branched chain configuration, for example, those of the type described in U.S. Pat. num. 2,220,099 and 2,477,383. Particularly valuable are straight chain alkyl benzene sulphonates, in which the average number of carbon atoms in the alkyl group is from about 11 to 13, abbreviated as Cn.i3 LAS (linear alkylbenzene sulfonate). Preferred anionic surfactants are those of formula R1 (OC2H4) nOH, where R is a C6-C16 alkyl group or a C8-C12 alkylphenyl group, and n is from 3 to about 80. In particular, the condensation products of C12-C15 alcohols with about 5 to 20 moles of ethylene oxide per mole of alcohol, for example, a C2-C3 alcohol condensed with about 6.5 moles of ethylene oxide per mole of alcohol. Additional nonionic surfactants that are considered suitable include polyhydroxy fatty acid amides of the formula: wherein R is an alkenyl or Cg-17 alkyl, Ri and Z is glycidyl derived from a reduced sugar or an alkoxylated derivative thereof. Among them, N-methyl? -1-deoxyglucityl cocoamide and N-methyl? -1-deoxyglucitl oleamide. Processes for making the polyhydroxy fatty acid amides are known and can be found in U.S. Pat. no. 2,965,576 to Wilson, and U.S. Pat. no. 2,703,798, from Sc wartz, whose descriptions are incorporated herein by reference.

II Additives The compositions may also contain between about 0.1% and 80% of an additive by weight. Preferably, these compositions in liquid form will contain from about 1% to 10% by weight of the additive component. Preferably, these compositions in granular form will contain from about 1% to 50% by weight of the additive component. Detergent additives are well known in the technical field, and may contain, for example, phosphate salts, as well as various non-phosphorous organic and inorganic additives. The organic and water-soluble phosphorous additives which are useful in the present invention include the various polyacetates, carboxylates, polycarboxylates and polyhydroxysulfonates of substituted ammonium, ammonium and alkali metals. Examples of polyacetate and polycarboxylate additives are the salts of ethylenediaminetetraacetic acid, nitrilotriacetic acid, oxydisuccinic acid, mellitic acid, benzene polycarboxylic acids of sodium, potassium, lithium, ammonium and substituted ammonium. Other polycarboxylates suitable for use in the present invention are the polyacetal carboxylates described in U.S. Pat. no. 4,144,226, issued March 13, 1979 to Crutchfield et al., And US Pat. no. 4,246,495, issued March 27, 1979 to Crutchfield et al., Both are incorporated herein by reference. Particularly preferred polycarboxylate additives are oxydisuccinates and carboxylate ether additive compositions containing a combination of tartrate monosuccinate and tartrate disuccinate described in U.S. Pat. no. 4,663,071, of Bush et al., Issued May 5, 987, the description of which is incorporated herein by reference. Examples of inorganic non-phosphorous additives include silicates, aluminosilicates, borates and carbonates. Particularly preferred are carbonate, bicarbonate, sesquicarbonate, tetraborate decahydrate and the sodium and potassium silicates having a weight ratio of S02 to alkali metal oxide of about 0.5 to 4.0, preferably of about 1.0 to 2.4. Also preferred are aluminosilicates including zeolites. These materials and their use as detergent additives are discussed in more detail in U.S. Pat. no. 4,605,509 to Corkill et al., The description of which is incorporated herein by reference. Also, crystalline layered silicates, such as those discussed in U.S. Pat. no. 4,605,509, Corkill et al., Incorporated herein by reference, are suitable for use in the detergent compositions of the present invention.

III. Preferred Enzymes The laundry products of the present invention may also contain an enzyme amylase, lipase, a selected protease enzyme or mixtures thereof. Enzymes are generally incorporated in the detergent compositions at levels sufficient to provide an "effective amount of cleaning". The term "effective cleaning amount" refers to any amount capable of producing an improving effect of cleaning, stain removal, dirt removal, bleaching, deodorization or freshness on the substrates as is the case with fabrics. Preferably, the laundry product compositions described in the present invention may contain up to about 5 mg, more preferably between about 0.01 mg and 3 mg of active enzyme per gram of the detergent composition. Stated in any other way, the compositions herein generally contain between about 0.001% and 5%, preferably between 0.01% and 1% of a commercial enzyme preparation by weight of the composition. The concentration of the protease enzymes in these commercial preparations is usually sufficient to provide between 0.005 and 0.1 Anson units (AU) of activity per gram of the composition. Higher concentrations of the active may be desirable in highly concentrated detergent formulations.

Selected proteases useful herein include the subtilisins that are obtained from specific strains of B. subtilis and β. licheniformis. A preferred protease is obtained from a strain of Bacillus having a maximum activity in the range of pH 8-12, developed and marketed as ESPERASE® by Novo Industries A / S of Denmark, hereinafter "Novo". The preparation of this enzyme and analogous enzymes are described in GB 1, 243,784 of Novo. Other suitable proteases include ALCALASE® and SAVINASE® from Novo and MAXATASE® from International Bio-Synthetics, Inc., The Netherlands. When convenient, the compositions herein may include a protease that has less adsorption and greater hydrolysis, as described in WO 9507791 to Procter & Gamble. Another recombinant protease for detergents, similar to trypsin, suitable herein is described in WO 9425583 by Novo. Any known amylase can be included in the compositions of the present invention. Suitable lipase enzymes for use herein include those produced by microorganisms of the Pseudomonas group, such as Pseudomonas stutzeri ATCC 19,154, as described in GB 1, 372, 034. See also lipases in Japanese patent application no. 53,20487, open to public inspection on February 24, 1978. This lipase is distributed by Amano Pharmaceutical Co. Ltd., Nagoya, Japan under the trade name of Lipase P "Amano" or "Amano-P". Other suitable commercial lipases include Amano-CES, lipases ex Chromobacter viscosum, for example Chromobacter viscosum var. lipolyticum NRRLB 3673 from Toyo Jozo Co., Tagata, Japan; Chromobacter viscosum lipases from U.S. Biochemical Corp., U.S.A. and Disoynth Co., The Netherlands and lipases ex Pseudomonas gladioli. A preferred lipase for use herein is the LIPOLASE® enzyme derived from Humicola lanuginosa and commercially available from Novo, see also EP 341, 947. When the compositions of the present invention contain a compatible enzyme, they preferably also contain an effective enzyme stabilizing system. Therefore, the compositions containing enzymes described in the present invention may comprise, in order of least to greatest preference and at approximate intervals, between 0.001% and 10%, between 0.005% and 8% and between 0.01% and 6% of a system enzyme stabilizer, by weight. Any enzyme stabilizing system that is compatible with the enzymes useful herein can be used. This system can be inherently provided by other active ingredients in the formulation or, for example, the formulator or the enzyme manufacturer can add it separately. Stabilizing systems may contain, for example, calcium ion, boric acid, propylene glycol, short chain carboxylic acids, boronic acids or mixtures of these and their design may be directed to different stabilization problems depending on the type and physical form of the detergent composition.

Liquid Laundry Detergents The laundry product compositions described herein are preferably formulated as liquid laundry detergents. Liquid laundry detergent compositions preferably contain about 3% to 98%, more preferably about 15% to 95% of an aqueous carrier, preferably water, by weight of the liquid detergent composition. Liquid laundry compositions in accordance with the present invention preferably provide an approximate pH of the wash solution from 6 to 10, more preferably from about 7 to 9 so that liquid laundry products in accordance with the present invention maintain a adequate performance of stain removal. If necessary, the cleaning compositions may contain alkalizing agents, pH control agents or buffering agents. The approximate density of laundry detergent compositions of the present invention preferably ranges from 400 to 1200 g / L, more preferably from 500 to 100 g / L of composition measured at 20 ° C.

EXAMPLES The following illustrative formulations of laundry products can be made by traditional methods and means known to one of skill in the art.

EXAMPLES 1 v 2 Liquid detergent Provided by Dow Chemicals. Polydimethylsiloxane, provided by Dow Corning EXAMPLES 3 v 4 Detergent powder Provided by Dow Chemicals. Polydimethylsiloxane available from Dow Corning EXAMPLES 5 v 6 Fabric conditioners Provided by Dow Chemicals. Polydimethylsiloxane available from Dow Corning Although the particular embodiments of the present invention have been illustrated and described, it will be clear to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. It has been intended, therefore, to cover all the changes and modifications within the scope of the invention in the appended claims.

Claims (10)

NOVELTY OF THE INVENTION CLAIMS

1. A composition of a laundry product; the composition comprises a stable mixture of: a) between 0.1% and 10% of at least one beneficial agent insoluble in water for the care of fabrics, by weight of the composition; and b) between 0.01% and 5% of at least one supply enhancing agent, preferably a cationic cellulose, by weight of the composition.

2. The composition of a laundry product according to claim 1, further characterized in that the particle size of the beneficial agent insoluble in water for the care of the fabrics is from 1 nm to 100 μm.

3. The composition of a laundry product according to any of the preceding claims, further characterized in that the beneficial agent insoluble in water for the care of the fabrics is a derivative of the silicones insoluble in water, preferably a silicone not added to groups functional that has a linear, grafted or cyclic structure; a silicone added to functional groups; a copolymer with one or more types of different functional groups which is an amino, alkoxy, alkyl, phenyl, polyether, acrylate, siliconhydride, mercaptoproyl, carboxylic acid, quaternized nitrogen, or mixtures thereof; or a mixture thereof, more preferably polydimethylsiloxane.

4. The composition of a laundry product according to any of the preceding claims, further characterized in that the stable mixture is formed in situ.

5. The composition of a laundry product according to any of the preceding claims, further characterized in that the composition further comprises between 1% and 80% of a surfactant.

6. The composition of a laundry product according to claim 1, further characterized in that the proportion of the agent enhancing the supply to the beneficial agent for the care of the fabrics is from 1: 50 to 1: 1.

7. The composition of a laundry product according to any of the preceding claims, further characterized in that the cationic cellulose has the structure: wherein each R1, R2, R3 is independently H, CH3, C8-24 alkyl (linear or branched) 0; Rx is H, CH3, R9 Z or mixtures thereof, Z is a chlorine, bromine ion or mixtures of these "; R5 is H, CH3, CH2CH3 or mixtures thereof; R7 is CH3, CH2CH3, a phenyl group; , an alkyl group of Cs-24 (linear or branched) or a mixture thereof, and each R8 and R9 independently CH3, CH2CH3, phenyl or mixtures thereof: R is H, / m or mixtures thereof where P is a repeating unit of an addition polymer formed by radical polymerization of a cationic monomer ín where Z is a chlorine ion, of bromine or mixtures thereof and q is 1 to 10.

8. A detergent composition of the laundry product comprising: a) between 1% and 80% of a detergent surfactant which is an anionic, cationic, nonionic, amphoteric, zwitterionic surfactant or a mixture thereof, preferably a mixture of ammonium and nonionic surfactants, by weight of the composition; b) between about 0.1% and 10% by weight of the composition of a water-insoluble beneficial agent for fabric care, preferably a water-insoluble silicone derivative; c) between 0.01% and 5%, by weight of the composition, of a supply enhancing agent, preferably a cationic cellulose; and wherein the ratio of the enhancing agent of the supply to the beneficial agent for the care of the fabrics is from 1: 50 to 1: 1.

9. The detergent composition according to claim 8, further characterized in that the cationic cellulose has the structure: wherein each R \ R2, R3 is independently H, CH3, C8-24 alkyl R5 (linear or branched), /? or mixtures thereof; n is between 1 and - ^ - CH2CH-0 ^ -Rx OH R7 10; Rx is H, CH3, C8-24 alkyl (straight or branched), - CH2CHCH2-N-R9 Z R8 or mixtures thereof, Z is a chlorine ion, bromine ion or mixtures thereof "; R5 is H, CH3, CH2CH3 or mixtures thereof, R7 is CH3) CH2CH3, a phenyl group, an alkyl group of C8-24 ( linear or branched) or a mixture thereof, and each R8 and R9 is independently CH3, CH2CH3, phenyl or mixtures thereof: R is H, m or mixtures thereof, wherein P is a repeating unit of an addition polymer formed by radical polymerization of a cationic monomer wherein Z 'is a chlorine, bromine ion or mixtures of these and q is 1 to

10. The detergent composition according to claim 9, further characterized in that the composition is a liquid detergent and further contains a compatible enzyme.