CN102177232A - Microcapsules in surfactant-containing compositions - Google Patents

Abstract

A composition comprising, 1-99%wt of surfactant and at least one micro-particle having a diameter of 100nm-2mm, said micro-particle comprising: i) a core comprising a hydrophobic benefit agent (preferably a perfume or a dye), and, ii) a shell comprising an uncharged hydrophobically-modified, water-soluble film-forming polymer (preferably a modified PVOH), whereby the film remains substantially intact in the presence of surfactant but dissolves when the concentration of surfactant is reduced, thereby releasing the benefit agent. The invention provides a process for treatment of surfaces comprising the step of contacting a composition according to the invention with fabric, hair, or living tissue. The invention also provides a method for preparing compositions according to claims 1-13 which comprises the steps of: a) providing an aqueous solution of uncharged, hydrophobically-modified, film forming polymer having a hydrophobic benefit agent dispersed therein, b) forming a layer of the uncharged, hydrophobically-modified, film forming polymer around the dispersed hydrophobic benefit agent, and c) stabilizing said layer with surfactant.

Description

Contain the microcapsule in the composition of tensio-active agent

Technical field

The present invention relates to comprise that the particulate that contains useful reagent contains composition and its purposes of tensio-active agent, especially as detergent for washing clothes or fabric conditioner product.The present invention also is applicable to other product that contains tensio-active agent those as being suitable for using on fur and crust.

Background technology

The present invention will be that perfume compound, dyestuff and cats product are described with reference to beneficial agent especially.

Perfume compound is that laundry detergent composition contains the important and expensive component of the product of tensio-active agent with other.Importantly guarantee during the processing of composition or do not lose perfume compound during storage and they are deposited on the article and surface that are washed.Because volatility, perfume compound is easy to evaporate from composition, if when said composition is subjected to high temperature especially.The method that deposits fragrance components and other beneficial agent from the composition that contains tensio-active agent is different and perfume compound usually is incorporated in carrier or other delivery system.The carrier system of perfume compound is typically based on perfume compound is encapsulated or is trapped in the matrix.Perfume compound can be by emulsification simply, usually is inefficient and can occurs keeping or the problem of poor stability but deposit on substrate such as fabric, skin or the hair.By being diffused into, perfume compound prepares the substrate deposition that material may lock into preparation reservation complicated, diffusion, the difference of perfume compound in matrix for a long time and difference subsequently in the carrier.

As the method that addresses these problems, advised the perfume compound encapsulation.EP 332175 (Lion, 1988) discloses the method for producing the water-insoluble microcapsule, comprises mixings (i) aqueous dispersion, and it comprises capsule, and this capsule has the wall film, comprises PVOH and contains the electrolytical aqueous solution and (ii) comprise the step of the linking agent of aldehyde.Ionogen is stablized capsule and is crosslinked up to the wall film.These particles are for washing and being stable in aqueous dispersion.

The commercially available perfume compound encapsulant that gets based on the aminoplastics material and can with the cationic materials modification improve the surface as the deposition on the textiles.If use in as capsular environment comprising anion surfactant, these charged capsules suffer that difficulty and tensio-active agent will interact.

Polyvinyl alcohol (PVOH) has been used to form water-soluble pouch, and it comprises cats product.WO 2004/031271 discloses modified polyethylene alcohol (PVOH) pouch, and it is that the film of 50-500 micron centers on by preferred mean thickness.Pouch preferably comprises the material of 0.5ml-100ml as the laundry amendment.

GB 0803165.0 (applying date is on February 8th, 2008) discloses a kind of microcapsule, its diameter is less than 2mm, comprise: (a) beneficial agent (as perfume compound) and (b) with the water-soluble polymers film forming material of the hydrophobic grouping and the first charged deriveding group modification.Film: in the presence of tensio-active agent, be kept perfectly basically, and when surfactant concentrations fully reduces, decompose, discharge beneficial agent thus.

Dyestuff is many another useful components that contain the composition of tensio-active agent.For example, in laundry composition, dyestuff can be used as " shading " or " toning " agent.Dyestuff may reside in the hair products so that make coloring hairs.As perfume compound, dyestuff is difficult to deposit from surfactant composition, because tensio-active agent has auxiliary article or surperficial tendency of removing dyestuff from just being washed.The situation of many other beneficial agents also is the same.

Summary of the invention

We have determined hydrophobically modified polymers (modified polyvinyl alcohol (mPVOH) especially), it does not have the charged deriveding group that is required by GB 0803165.0, can be used for applying the microparticle and these particles that comprise beneficial agent, though stable under the high surface agent concentration, under low surfactant concentration, discharge beneficial agent.These microparticles are much smaller than the pouch of WO 2004/031271 and be different from crosslinked, the formulated with insoluble particles of EP 332175, do not need to pulverize to discharge its content.

Therefore, a first aspect of the present invention provides a kind of composition, and it comprises that the tensio-active agent of 1-99wt% and at least a diameter are the microparticle of 100nm-2mm, and described microparticle comprises:

I) comprise hydrophobic benefit reagent core and,

Ii) comprise shell uncharged hydrophobically modified, water miscible film-forming polymer, wherein film is kept perfectly in the presence of tensio-active agent basically, but dissolving when surfactant concentrations reduces discharges beneficial agent thus.

Preferably, the diameter of microparticle is the 1-1000 micron, more preferably 1-100 micron, most preferably 1-50 micron.

According to a further aspect of the present invention, provide a kind of and be used for preparation according to method for compositions of the present invention, it is made of following step:

A) provide the aqueous solution of the film-forming polymer of uncharged, hydrophobically modified, have the hydrophobic benefit reagent that is dispersed in wherein,

B) around dispersive hydrophobic benefit reagent, form uncharged, hydrophobically modified film-forming polymer layer and

C) stablize described layer with tensio-active agent.

In scope of the present invention, the ClogP of hydrophobic benefit reagent is greater than 0.5, is preferably more than 1 and more preferably greater than 2.Be not intended to be bound by theory, it is believed that when core and polymkeric substance compile, hydrophobic parts causes that polymkeric substance assembles at the interface at water-core.In particularly preferred embodiments, when the temperature of solution is enhanced the lower bound critical solution temperature (LCST that is higher than polymkeric substance, lower critical solution temperature) time, this coating crystallization becomes a part water insoluble and the formation shell.When adding suitable tensio-active agent, form other layer by the interaction between the hydrophobic parts on tensio-active agent and the polymkeric substance, produce shell thus around core.When temperature drops to when being lower than LCST, it is stable that the surfactant and polymer shell keeps, and condition is to have enough tensio-active agents.In containing the product of tensio-active agent, shell is stable.Yet when diluted product, shell becomes instability and beneficial agent is released.

Preferably, polymer-modified have:

A) in comprising greater than the water of one or more anionic/nonionic of the concentration of 1 grams per liter or cats product 20 ℃ solubleness or dispersiveness: less than 0.5 Grams Per Hour and,

When b) concentration in water is less than 1 grams per liter when anionic/nonionic or cats product, solubleness or dispersiveness: greater than 0.5 Grams Per Hour.

Beneficial agent when the drop that is applied to oily material such as free perfume oil, or even comprise the particle of pre-packaged perfume compound, carbamate or aminoplastics encapsulant (comprise especially, melamine-formaldehyde encapsulant) and during polyolefine encapsulant (comprise based on poly-(methyl) acrylate those), the present invention finds special practicality.Other oily materials that are fit to comprise having the oil-soluble colourant that are dispersed in wherein, or the oil of other beneficial agent.In preferred embodiments, the solubleness (at 20 ℃) of beneficial agent in water is less than 600mg/L, preferably less than 200mg/L.

The present invention can also be used to encapsulate charged material, and preferably cationic materials so that they can be added to the solution of the material that contains opposite charges, and does not cause flocculation/unstable.

Preferably, the hydrophobic deriveding group of polymkeric substance stems from ClogP greater than 0.5 fertile material.According to a further aspect of the present invention, provide a kind of method that is used to handle fabric, it comprises makes the step that contacts with fabric according to composition of the present invention (with form pure or dilution).Should be noted in the discussion above that purposes of the present invention is not limited to laundry applications and can be used in other surface as on hair or the living tissue surface.The present invention can be used for stable and sends from any significantly hydrophobic benefit reagent of the system that contains tensio-active agent of dilution that will experience during use.Therefore, the present invention further provides a kind of surface-treated method that is used for, it comprises makes the step that contacts with the surface according to composition of the present invention (with form pure or dilution).

Embodiment

In order further to understand the present invention, below described with particular reference to the preferred feature of specific factor of the present invention.

Polymkeric substance

The all or part of polymkeric substance of main chain that is suitable for use as the water-soluble polymers of hydrophobically modified preferably is selected from polyvinyl alcohol, polyvinyl acetate, ether of cellulose, polyoxyethylene, starch, polyvinylpyrrolidone, polyacrylamide, polyvinyl methyl ether-maleic anhydride, polymaleic anhydride, styrene-maleic anhydride, Natvosol, methylcellulose gum, polyoxyethylene glycol, Cellulose,ether with glycolic acid, polyacrylate, alginate esters or salt, acrylamide copolymer, guar gum, casein, ethene-maleic anhydride resin series, polymine, Type 3U, ethylmethylcellulose and hydroxyethylmethyl-cellulose.Copolymer mixture derived from the polymkeric substance of above-mentioned main chain also is suitable.Preferably, water-soluble polymers has the main chain that comprises pendant hydroxyl group.

The most preferred main chain of water-soluble polymers comprises polyvinyl alcohol (PVAc), and preferably molecular-weight average is 10kD to 300kD, preferably 20kD to 200kD, most preferably 75kD to 175kD.

Polyvinyl alcohol (PVOH) can provide with the form that comprises a certain amount of polyvinyl acetate (PVAc), and wherein the hydroxyl (OH) of the PVOH material of certain level is replaced by acetate moiety group (OCOCH3).The hydrolysis of PVAc is the common methods that is used to prepare PVOH.Yet, realize that hydrolysis completely is only about at the most 99% hydrolysis of material high price and typical.Therefore, PVOH used herein generally includes some PVAc.PVOH material (hydrophobic modified before or after) can comprise 0.01 to 40%PVAc, preferably 0.01 to 20%, more preferably 0.1 to 15%, most preferably 0.5 to 10%, and based on the per-cent of the monomeric sum that constitutes polymkeric substance.As used in this article, term PVOH comprises the PVOH compound of the PVAc level that has as defined above.In this respect, referring to material is that the uncharged PVOH of being meant comprises uncharged deriveding group, as being needed by GB 0803165.0, is not that it does not contain remaining PVAc.

Preferably, polymer-modified average hydrolysis degree is 70-99%.Preferably, polymer-modified have according to DIN 53 015 measure 20 ℃ 1 to 100mPa.s viscosity, by 4% solution.

As mentioned above, water-soluble polymers is modified and comprises hydrophobic substituent.Preferred hydrophobicity deriveding group comprises based on those of the precursor group that is selected from acetal, aldehyde, ketal, ester, fluorinated organic compounds, ether, alkane, alkene and aromatic substance.Highly preferred hydrophobic substituent is the hydrocarbyl group of C4 to C22 carbon chain lengths.These hydrocarbyl groups can be based on alkyl or alkenyl, and it can be straight chain, branching or comprise ring; It also can or alternatively introduce the aromatics part.

More preferably, hydrocarbyl group has C4 to C20, C4 to C15 more preferably, and C4 to C10 most preferably, for example, the carbon chain lengths of C4 to C8.

Hydrocarbyl chain length greater than C22 is undesirable, because react relatively poor or reaction by fertile material that wherein obtains deriveding group and main polymer chain.The hydrocarbyl group that is shorter than C4 provides inappreciable other hydrophobicity.

Be applicable to that the particularly preferred material that the hydrophobicity deriveding group is incorporated on the water-soluble polymers is aldehyde such as butyraldehyde, octanal, dodecyl aldehyde, 2-ethyl hexanal, hexanaphthene formaldehyde, citral and 4-amino butyraldehyde dimethyl acetal (4-aminobutyraldehyde dimethyl acetal).

Based on the gross weight of polymkeric substance, hydrophobic material is preferably with 0.1 to 40wt%, and more preferably 2 to 30%, most preferably 5 to 15% level is present in the polymkeric substance.

When wherein main polymer chain was based on polyvinyl alcohol, the hydrophobicity derived material preferably existed with such level, made that the right number ratio of free hydroxyl group on hydrophobic grouping and the main chain is 1:3 to 1:30, more preferably 1:4 to 1:20, most preferably 1:7 to 1:15.

The performance that the variation of the level of deriving of polymkeric substance makes it possible to the modification shell makes shell will discharge the material in the core under the level especially of tensio-active agent.Therefore, can prepare shell, it is stable in containing the product of tensio-active agent, but the level of the tensio-active agent that it exists in washings become instability (for example, its in the main washing of laundry processes or become during with this product treatment skin or hair in the presence of the water unsettled).Such system can help the stability at the beneficial agent of product memory period.In alternatives, shell can be stable washings, but is becoming instability during processed surface or article flushing washings.Therefore, can form particle, it discharges beneficial agent during flushing process, and reduces the trend that beneficial agent is removed by tensio-active agent.May reside in more than one type particle and to prevent for example interaction of opalizer (itself otherwise may interact) of component in the given product.

Other film composition

For water-soluble film, maybe advantageously provide by material with partial cross-linked polymer architecture.Yet crosslinked level should be held low so that avoid forming insoluble material.Preferably, the material of making film is not crosslinked at all.

Specially suitable linking agent comprises formaldehyde; Polyester; Epoxide, amido amine, acid anhydrides, phenol; Isocyanic ester; Vinyl ester; Carbamate; Polyimide; Acrylic acid or the like; Two (methacryloxy (methacrylkoxy) propyl group) tetramethyl-silica alkane (vinylbenzene, Jia Jibingxisuanyizhi (ethylmethacrylate)); N-diazonium pyruvate; Phenyl-boron dihydroxide (phenyboronic acids); Cis-platinum; Vinylstyrene; Polymeric amide; Dialdehyde; Triallyl cyanurate; N-(2-ethane alkylsulfonyl ethyl) pyridinium halide; Tetralkyl titanate (tetraalkyltitanate); The mixture of titanate and borate or zirconate; Cr, Zr, the polyvalent ion of Ti; Dialdehyde, diketone; The alcohol complex of organic titanate/salt, zirconate/ester (zircoates) and borate/ester and copper (II) complex compound.For PVOH type film, preferred cross-linking agents is quasi-metal oxide such as borate, tellurate, arsenate and its precursor.Other known linking agent comprises vanadyl (vanadyl) ion, just tervalent titanium ion, or high manganese ion (being disclosed among the patent US 3,518,242).Alternative linking agent provides in following books: Polyvinylalcohol-Properties and applications, Chapter 9 by CA. Finch (John Wiley ﹠amp; Sons, New York, 1973).

Film can be in conjunction with softening agent and/or degree of crystallinity disrupting agent.Should will be appreciated that term " softening agent " and phrase " degree of crystallinity disrupting agent " are interchangeable, make and mention that one is that implicit expression is mentioned another.

For the mPVOH film, water itself is suitable manufacturing methods, but other common softening agent comprises: polyol, glycerine for example, TriMethylolPropane(TMP), glycol ether, triglycol, Sorbitol Powder, dipropylene glycol, polyoxyethylene glycol; Starch, starch ethers for example, esterification starch, Sumstar 190 and from the starch of potato, cassava and wheat; Mierocrystalline cellulose/carbohydrate, for example amylopectin, dextrin, carboxymethyl-Mierocrystalline cellulose and pectin.Amine is particularly preferred softening agent.

For mPVP type film, suitable manufacturing methods can be selected from one or more in following: phosphoric acid ester is tri-2-ethylhexyl phosphate for example, p isopropylbenzoic acid base diphenyl ester, tributyloxyethyl phosphate (tributoxyethylphosphate); Polyvalent alcohol is glycerine for example, Sorbitol Powder, two n-nonanoic acid glycol ether esters (diethylene glycol diperlargonate), poly-two-2 ethyl hexanoic acid glycol ester, dibutyl tartrate; Polyol ester is the polycaprolactone of hydroxyl for example, the poly--L-rac-Lactide of hydroxyl; Rudimentary phthalic ester is dimethyl phthalate for example, diethyl phthalate, dibutyl phthalate; With sulphonamide toluol sulfonamide for example, N-ethyltoluene sulphonamide.

For mPEO type film, suitable manufacturing methods can be selected from one or more in following: phosphoric acid ester is tri-2-ethylhexyl phosphate for example, p isopropylbenzoic acid base diphenyl ester, tributyloxyethyl phosphate (tributoxyethylphosphate); Polyvalent alcohol is glycerine for example, Sorbitol Powder, two n-nonanoic acid glycol ether esters (diethylene glycol diperlargonate), poly-two-2 ethyl hexanoic acid glycol ester, dibutyl tartrate; Rudimentary phthalic ester is dimethyl phthalate for example, diethyl phthalate, dibutyl phthalate; With sulphonamide toluol sulfonamide for example, N-ethyltoluene sulphonamide.

The package surface promoting agent

The tensio-active agent that is used for forming the gel barrier with film is anionic preferably, although nonionic or cats product can use.Be used for detergent for washing clothes as fruit granule, used tensio-active agent preferentially is a negatively charged ion or non-ionic.The negatively charged ion product also typically is used for hair and/or skin-cleaning composition.Be used for the rinsing clothes amendment as fruit granule, so tensio-active agent positively charged ion or non-ionic preferably.Equally, cats product typically is used for the hair-conditioning product.

Suitable anion surfactant is: linear alkylbenzene sulfonate (LAS, linear alkyl benzene sulphonate), primary alkyl sulfuric acid (PAS, primary alkyl sulphate), fatty ether sulfuric acid (LES, fatty ether sulphates), secondary paraffin sulfonate (secondary alkane sulphonate), sulfonated (α-olefin sulphonate), alpha-sulfo fatty acid methyl ester (α-sulphonic fatty acid methyl ester), methyl ester sulfonate (MES, methyl ester sulphonates).Preferred surfactants is LAS, PAS, LES and its mixture.Preferred material comprises fatty alcohol sulphuric acid ester sodium salt (sodium fatty alcohol sulphate), fatty alcohol sulphuric acid ester ammonium salt (ammonium fatty alcohol sulphate), alcohol ether sulfuric ester ammonium salt (ammonium alcohol ether sulphate), aliphatic ether sulfuric ester sodium salt (sodium fatty ether sulphate), alcohol ether carboxylate (alcohol ether carboxylate) and nonylphenol polyoxy ethyleneether carboxylate salt (nonylphenol polyoxyethylene ether carboxylate).The most preferred tensio-active agent that is used for laundry composition is LAS.

Suitable ionic surfactant pack is drawn together the straight chain and the branched-chain alcoho of ethoxylation, the alkylphenol of ethoxylation, fatty acid ester, amine and amide derivatives, APG, EO/PO segmented copolymer, polyvalent alcohol and ethoxylation polyvalent alcohol.

For hair and skin products, existing tensio-active agent preferably has 8-14 carbon, more preferably 10-12 and the most preferably anion surfactant of 12 carbon.More preferably, these carbon are present in the single alkyl.For hair and skin products, the preferred anionic surfactants tensio-active agent comprises alkyl sulfuric ester an alkali metal salt (alkali metal alkyl sulphate), more preferably alkyl ether sulphate salts (alkyl ether sulphate).Particularly preferred negatively charged ion clean surface promoting agent comprises lauryl ether sulfuric ester sodium salt (sodium lauryl ether sulphate).Typically, the cleaning phase of hair or skin products (that is, except that any conditioning or humidification mutually) comprises 27-70wt%, the clean surface promoting agent of 35-50wt% preferably, by composition.

In hair and skin condition product, preferred cationic surfactants has following formula: N⁺(R¹) (R²) (R³) (R⁴), R wherein¹, R², R³And R⁴Be (C16-C30) alkyl or benzyl independently.Preferably, R¹, R², R³And R⁴In 1,2 or 3 be (C16-C30) alkyl and other R independently¹, R², R³And R⁴Group is (C1-C6) alkyl or benzyl.Randomly, in alkyl chain, alkyl can comprise one or more esters (OCO-or-COO-) and/or ether (O-) key.Alkyl can randomly be replaced by one or more hydroxyls.Alkyl can be straight or branched and, for alkyl, can be cyclic with 3 or more a plurality of carbon atoms.Alkyl can be the saturated one or more carbon-to-carbon double bonds (for example oil base) that maybe can comprise.Alkyl randomly on alkyl chain by the ethoxylation of one or more ethyleneoxy group group.

Be used for comprising palmityl trimethyl ammonium chloride according to the suitable cationic surfactants of conditioner composition of the present invention, INCROQUAT TMC-80, pyrisept, tetramethyl ammonium chloride, etamon chloride, stearyl dimethyl benzyl ammonium chloride, cocoyl trimethyl ammonium chloride (cocotrimethylammonium chloride), PEG-2-ole ammonium chloride and its corresponding oxyhydroxide.Other suitable cationic surfactants comprises those materials with CTFA name Quaternium-5, Quaternium-31 and Quaternium-18.The mixture of any above-mentioned materials also may be suitable.The useful especially cats product that is used for according to amendment of the present invention is a palmityl trimethyl ammonium chloride, the commercially available for example GENAMIN CTAG that derives from, Hoechst Gelanese.Another the useful especially cats product that is used for according to amendment of the present invention is an INCROQUAT TMC-80, commercially available deriving from, for example, GENAMIN KDMP, Clariant.

One class is used for another example of suitable cationic surfactants of the present invention, randomly individually or with the blended form of one or more other cationic conditioning tensio-active agents, be amido amine.Useful in this article preferred amido amine comprises the stearamide propyl dimethyl amine, the stearamide propyl diethylamide, stearylamide ethyl diethylamide, stearylamide ethyl dimethyl amine, the palmitic amide propyl-dimethyl amine, palmitic amide propyl group diethylamide, palmitic amide ethyl diethylamide, palmitic amide ethyl dimethyl amine, mountain Yu amido propyl dimethyl amine, mountain Yu amido propyl diethylamide, mountain Yu acid amides ethyl diethylamide, mountain Yu acid amides ethyl dimethyl amine, peanut amido propyl dimethyl amine, peanut amido propyl diethylamide, peanut acid amides ethyl diethylamide, peanut acid amides ethyl dimethyl amine and its mixture.

Useful in this article particularly preferred amido amine is the stearamide propyl dimethyl amine, stearylamide ethyl diethylamide and its mixture.

The useful in this article commercially available amido amine that gets comprises: the stearamide propyl dimethyl amine, commodity are called LEXAMINE S-13, can be available from Inolex (Philadelphia Pennsylvania, the U.S.) and AMIDOAMINE MSP, can be available from Nikko (Tokyo, Japan), stearylamide ethyl diethylamide, commodity are called AMIDOAMINE S, can be available from Nikko, mountain Yu amido propyl dimethyl amine, commodity are called INCROMINE BB, can be available from Croda (North Humberside, Britain) and various amido amine, commodity are called SCHERCODINE series, can available from Scher (Clifton New Jersey, USA).

The level of cats product will be generally 0.01-10% in the hair-conditioning product, 0.02-7.5% more preferably, and 0.05-5% most preferably is by the gross weight of cats product, based on the gross weight of composition.

Beneficial agent

Use the present invention, can introduce various beneficial agents.Preferred beneficial agent comprises perfume compound, lubricant, any other oily material.Particularly preferred beneficial agent includes but not limited to, below:

A) silicone oil, resin and its variant such as straight chain and X 2-1401, amino-modification, allyl group (allcyl), aryl and alkylaryl silicone oil, it preferably has greater than 50, the viscosity of 000cst;

B) fragrance components comprises spices (fragrance), essence (perfumery) and volatile oil, and resin;

C) sensitive materials, comprise dyestuff and pigment, comprise and have hydrophobically modified surface and/or be dispersed in mineral compound in oil or the hydrophobic liquid, also comprise fluorescent agent: for example: in laundry product, be used for fabric (as cotton, nylon, polyester cotton (polycotton) or polyester) on 2, two (2-benzoxazolyl) thiophene of 5-; UV protective material: for example: methoxy cinnamic acid octyl group ester (octyl methoxycinnamate) (Parsol MCX) as opalizer, butyl methoxydibenzoylmethise (Parsol 1789) and benzophenone-3 (Uvinul M-40), and forulic acid (ferulic acid), organic sunscreen activity thing, for example, methoxy cinnamic acid octyl group ester (octylmethoxy cinnamate);

D) biocide, for example, 2-hydroxyl-4,2,4-three chlorodiphenyl ethers; Antidandruff agent: for example: oxygen mercaptopyridine zinc (zinc pyrithione);

E) skin lightening agent, for example 4-ethyl resorcinol;

F) ester solvent; For example, Isopropyl myristate;

G) lipid and lipid material, for example, cholesterol; Fish and vegetables oil, the hydrophobicity plant milk extract; Wax;

H) hydrocarbon such as paraffin, vaseline and mineral oil

I) pre-packaged material, for example perfume compound encapsulant;

J) with the tensio-active agent of package surface promoting agent opposite charges;

K) other medicinal and other bioactive compounds is as biocides and agrochemicals.

Fragrance components is in most preferred beneficial agent.Fragrance components comprises fragrance materials and preceding fragrant material, no matter whether encapsulates.As the oily material (being the carrier of quantity) of the carrier of more a spot of oil soluble beneficial agent less than 50wt% also in preferred beneficial agent.Such oil soluble beneficial agent comprises hydrophobic dye and other hydrophobic active thing such as agrochemicals.

Preceding perfume (or spice) can for example be the food lipid.The food lipid is oily material and typically comprises and have remarkable hydrophobic structural unit.Most of lipid stems from lipid acid.In these " acyl group " lipids, lipid acid mainly exists and comprises list, two, triacylglycerol with the form of ester, phosphatide, glycolipid, glycol lipid, wax, sterol ester and tocopherol.In their state of nature, vegetable lipid comprises antioxidant so that prevent its oxidation.Though these may be removed at least in part during separating oil from plant, some antioxidants may remain.These antioxidants also may be preceding perfume (or spice).Especially, carotenoid and relevant compound comprise that vitamin A, Vogan-Neu, retinene, vitamin A acid and provitamin A can be changed into aromatoising substance, comprise ionone, trans-Damascenone (damascones) and damascone (damscenones).Fragrant food lipid comprises sweet oil, plam oil, Canola oil, squalene, wunflower seed oil, wheat germ oil, Prunus amygdalus oil, Oleum Cocois, wine stone oil, rapeseed oil, Viscotrol C, Semen Maydis oil, oleum gossypii seminis, Thistle oil, peanut oil, poppyseed oil, plam oil, Rice pollard oil, sesame oil, soybean oil, pumpkin-seed oil, Jojoba oil and tori seed oil before preferred.As further describing in detail below the fragrance components of fragrance materials.

Perfume compound as beneficial agent:

Perfume compound typically exists with following quantity, 10-85%, and by the particulate gross weight, preferably 20 to 75%, by the particulate gross weight.Perfume compound suitably has 50 to 500 molecular weight.

The useful components of perfume compound comprises the material in natural and synthetic source.They comprise individualized compound and mixture.The specific example of such component is found in the current literature, for example, and Fenaroli's Handbook of Flavour Ingredients, 1975, CRC Press; Synthetic Food Adjuncts, 1947 author M. B. Jacobs, editor Van Nostrand; Or Perfume and Flavour Chemicals author S. Arctander 1969, Montclair, N.J. (USA).These materials are to make consuming product fragrance, add flavor and/or sweetening treatment, promptly give smell and/or fragrance or taste and give convention by the consuming product of fragrance or perfuming, or it is well-known to change the technician in field of the smell of described consuming product and/or taste.

Perfume compound not only is meant the product spices (fragrance) of preparation fully in this respect, but also refers to the selected component of this spices (fragrance), and those that are easy to especially lose are as so-called " head fragrant (tope notes) ".

Head is fragrant by following document definition: Poucher (Journal of the Society of Cosmetic Chemists 6 (2): 80 [1955]).The fragrant example of well-known head comprises citrus oil, linalool, Linalyl acetate, lavender, dihydromyrcenol, rose oxide and suitable-3-hexanol.Head is fragrant typically to be accounted for the 15-25wt% of perfume composition and in those embodiments of the present invention that contain the head perfume that improves content, estimates that 20wt% will be present in the encapsulant at least.

Typical fragrance components, wherein advantageously with its encapsulation, comprise have more lower boiling those, preferably boiling point less than 300, those of 100-250 degree centigrade preferably.

Encapsulation has the fragrance components (that is, will being assigned in the water those) of low LogP also advantageously, preferably wherein LogP less than 3.0.These materials, than lower boiling and low LogP, be called as " postponing floating loosing (delayed blooming) " perfume compound composition and comprise following material:

Pineapple aldehyde, amyl acetate-n, amyl propionate, aubepine, methyl-phenoxide, phenyl aldehyde, jasmal, benzyl acetone, phenylcarbinol, benzyl formate, benzyl isovalerate, benzyl propionate, β γ hexenol, camphor glue, L-CARVONE, the d-Karvon, styryl carbinol, formic acid cinnamyl (cinamyl) ester, suitable-jasmone, suitable-acetate 3-hexenyl ester, cuminyl alcohol, ligustral, dimethyl benzyl carbinol, dimethyl benzyl carbinyl acetate, ethyl acetate, methyl aceto acetate, EAK, ethyl benzoate, ethyl butyrate, ethyl hexyl ketone, the acetate ethyl phenyl ester, eucalyptol, allylguaiacol (eugenol), acetate fenchyl ester, Flor acetic ester (tricyclodecenyl acetate), Frutene (propionic acid tricyclodecenyl ester), Geraniol, hexenol, acetate hexenyl ester, hexyl acetate, hexyl formate, black nightshade alcohol, laurine, indone, primary isoamyl alcohol, isomenthone, isopulegyl acetate, isoquinolines, ligustral, linalool, Linalool oxide, any ester in the formic acid, piperitone, menthyl phenyl methyl ketone (acetphenone), Methyl amyl ketone, methyl o-aminobenzoate, methyl benzoate, acetate methyl-benzyl ester (methyl benyl acetate), methyleugenol (eugenol), Sulcatone, methylheptine carbonate (methyl heptine carbonate), methyl heptyl ketone, methyl hexyl ketone, styroyl acetate, wintergreen oil, N-methyl methyl o-aminobenzoate, vernol, caprylolactone, octanol, p-cresol, the p-cresol methyl ether, right-methoxyacetophenone, right-methyl acetophenone, phenoxyethyl alcohol, phenyl acetaldehyde, ethyl phenyl acetate, phenylethyl alcohol, dimethyl phenylethyl carbinol, prenyl acetate, tripropoxy-boron (propyl bornate), pulegone, rose oxide, safrole, the 4-terpinenol, α-terpinenol and/or 1,1-dimethoxy-2-phenylethane (viridine).

Usually, multiple fragrance components is present in the preparation.In encapsulant of the present invention, expectation will exist 4 kinds or more kinds of, preferably 5 kinds or more kinds of, more preferably 6 kinds or more kinds of, or even the fragrance components of 7 kinds or more kinds of different given tabulations from the floating perfume compound that looses of delay that provides more than in the perfume compound that is present in encapsulation.

Can be applicable to another group perfume compound of the present invention is so-called " aromatherapy " material.These comprise many components that are used for essence (perfumery) equally, comprise the component of volatile oil such as Salvia sclarea (Clary Sage), folium eucalypti (Eucalyptus), Flos Pelargonii (Geranium), lavender (Lavender), Semen Myristicae (Mace) extract, orange flower oil (Neroli), Semen Myristicae (Nutmeg), Mentha viridis L (Spearmint), Viola odorata leaf (Sweet Violet Leaf) and valerian (Valerian).By the present invention, these materials can be transferred to textiles, and the latter will be worn or otherwise contact with human body (as handkerchief and bed linen).

As mentioned above, particulate core of the present invention can itself be the perfume compound of encapsulation, as melamine/urea/formaldehyde encapsulant.By adding the other layer that not influenced by perfume compound, the present invention can be used for " improvement " seepage capsule.In use, in cleaning process, remove other layer (PVOH and tensio-active agent).In for some time, and/or under the situation of laundry, pledging clothes is worn and capsule when crushed, so capsule can discharge perfume compound.

As illustrational below with reference to certain embodiments, the present invention can be used in the pre-packaged beneficial agent (as perfume compound) of encapsulation, and the latter has had the positively charged ion capsule when it encapsulates for the first time.Such positively charged ion capsule it is believed that to demonstrate than not charged capsule and is for example better depositing on the cloth.Yet they demonstrate the negative interaction with anion surfactant.By further encapsulate these capsules according to the present invention, can reduce these undesirable interactions.

Dyestuff as beneficial agent

As the alternatives of perfume compound or except that perfume compound, dyestuff is the beneficial agent that possible be present in the particle.Dyestuff is typically so that the level that they are effective as toning (shading) dyestuff exists.Dope dye is preferably blue or purple.Suitable and preferred dope dye is WO05/003274, WO06/032327, WO06/032397, EP08167033, WO06/045375, those described in WO06/053598 and the WO08/017570.Can use the mixture of dope dye.

The dope dye of preferred kind is positively charged ion thiazole (thiazolium) dyestuff, positively charged ion isothiazole (isothiazolium) dyestuff, positively charged ion azines, positively charged ion pyridine/pyridazine dyestuff, acid azines, hydrophobic anthraquinone dye and hydrophobicity azoic dyestuff.Most preferred dope dye is to be selected from following those: directly purple 9; Direct purple 35; Direct purple 51; Direct purple 99; Acid violet 50; 63 ,DIS,PER,SE ,Vio,let, 63 28 Hes, solvent violet 13.Under the packed situation of some other beneficial agents according to the present invention, dyestuff can be present in the capsule with other appendicular form or the product body in.

Tensio-active agent as beneficial agent

Beneficial agent may itself be that tensio-active agent maybe may comprise tensio-active agent.In laundry product, for example, beneficial agent can be a cats product, its by the shell that forms around its prevent with the product body in anion surfactant interact.For laundry product, suitable such cats product is the water-soluble cationic material, and it has at least one alkyl or alkenyl chain.Preferably the length summation of alkyl chain is less than 20.Preferred cationic surfactants is: the quaternary ammonium compound with single long-chain aliphatic group.Palmityl trimethyl ammonium chloride is particularly preferred.

Other beneficial agent

Beneficial agent can comprise siloxanes, preferably as adjusting agent, is used to be applicable to the product of hair and skin products especially.Alternatively or in addition, siloxanes is adjusted agent and be may reside in the composition body.It is silicone emulsion those as being formed by siloxanes that particularly preferred siloxanes is adjusted agent, as polydiorganosiloxane, the polydimethylsiloxane of CTFA called after dimethicone especially, the amino of the polydimethylsiloxane of CTFA called after dimethiconol and CTFA called after amodimethicone-functional polydimethylsiloxane with hydroxyl end groups.

Also suitable is such silicone emulsion, and wherein the high-molecular weight surfactivity segmented copolymer of some type has mixed with the silicone emulsion drop, as for example describing among the WO03/094874.In such material, the silicone emulsion drop is preferably formed by polydiorganosiloxane such as above-mentioned those.A kind of surfactivity segmented copolymer of preferred form is according to following formula:

Wherein the mean value of x be 4 or bigger and mean value y be 25 or bigger.

The surfactivity segmented copolymer of another preferred form is according to following formula:

Wherein the mean value of a be 2 or bigger and mean value b be 6 or bigger.

Also can use the mixture of any above-mentioned silicone emulsion.

Above-described siloxanes will be usually in composition of the present invention with 0.05-15%, preferably the level of 0.5-12% exists, by the gross weight of siloxanes, based on the gross weight of composition.

Can estimate other hydrophobic benefit reagent.Many agrochemicals materials are hydrophobic and perhaps in use are potentially dangerouss.Such material can exist with the form of the solution in oily material, and it has formed according to particulate core of the present invention.Existence around the stable shell of the tensio-active agent of these cores it is believed that the release that has postponed these materials is diluted up to composition, preferably exactly before use, has therefore reduced undesirable exposure.

Estimate that these materials can prepare as described in this manual.

Manufacture method (polymkeric substance)

The modification of polymkeric substance can realize by a series of known methods.For example, in making the PVOH of modification, the acidic solution of PVOH (preferably be higher than form under 80 degrees centigrade the temperature) about 70 degrees centigrade with aldehyde/aldolization (preferably dripping).After adding component, make to be reflected under the normal temperature-pressure and carry out a few hours.Yet the suitable polymers material is commercially available that get and comprise Mowiflex LPFX 416 (Kuraray).

Particularly preferred embodiment of the present invention is the main washing detergent composition that comprises anion surfactant.Tensio-active agent preferably is present in the composition with the level of 1wt% to 60wt%.Suitable anion surfactant is that those skilled in the art are well-known and comprise alkylbenzene sulfonate (alkyl benzene sulphonate), primary and secondary alkyl sulfuric ester salt (primary and secondary alkyl sulphates), C8-C15 primary alkyl sulfuric acid (primary alkyl sulphates) especially; Alkyl ether sulphate salts (alkyl ether sulphates); Alkene sulfonate (olefin sulphonates); Alkylxylene sulfonate (alkyl xylene sulphonate), dialkyl sulfosuccinate succinate salt (dialkyl sulphosuccinate); Ether carboxylate (ether carboxylate); Isethionate (isethionates); Sarcosinate (sarcosinates); Fatty sulfonate (fatty acid ester sulphonates) and its mixture.Usually, sodium salt is preferred.When being included in wherein, composition comprises about 1%-about 50% usually, the anion surfactant of 10wt%-40wt% preferably, based on fabric treatment composition, as linear alkylbenzene sulfonate (linear alkylbenzenesulfonate), sulfonated (α-olefinsulfonate), alkyl sulfuric ester salt (alkyl sulfate) (fatty alcohol sulfate salt (fatty alcohol sulfate)), alcohol ethoxy sulfuric acid (alcohol ethoxysulfate), secondary alkyl sulfonate (secondary alkanesulfonate), alpha-sulfo fatty acid methyl ester (alpha-sulfo fatty acid methyl ester), alkyl or alkenyl succsinic acid or soap.Preferred surfactants is the blend of alkyl ether sulphate salts (alkyl ether sulphate) and alkoxylated alkyl group nonionogenic tenside and alkylsulfonate (alkyl sulphonate) or alkyl ether sulphate salts (alkyl ether sulphate).Preferred alkyl ether sulphate salts is C8-C15 alkyl and the ethoxylation (ethoxlation) with 2-10 mole.Preferred alkyl sulfuric ester salt (alkyl sulphates) is alkylbenzene sulfonate (alkylbenzene sulphonates), has the linear alkylbenzene sulfonate of C8-C15 alkyl chain length especially.The counter ion of anion surfactant are sodium typically, though other counter ion such as TEA or ammonium can be used.Suitable anion surfactant material can get in market, as ' Genapol', from Clariant.In these embodiment preferred, beneficial agent is selected from:

A) perfume compound itself;

B) packed perfume compound; With,

C) cats product.

For can be further and understand the present invention better, below be illustrated with reference to certain embodiments.

Granulometry

Use two kinds of methods to measure granularity.

1. use the Olympus BX-41 opticmicroscope that digital camera is housed, the particle in the solution is carried out imaging.Catch image, use Olympus Cell P software, it allows to measure granularity.

2. the particle dry air is carried out imaging to the nonabsorbable surface and in Hitachi-TM 1000 desk type scanning electronic microscopes.Use is determined granularity by the length scales that related software adds in the image.

Embodiment:

Embodiment 1: perfume compound and dyestuff are as beneficial agent

1a) do not contain the contrast solution of polymkeric substance:

The 30ml demineralized water

500 μ l AKK* perfume compound+5 μ l oil red EGN (* type 15-component perfume compound)

Use high speed agitator, mix perfume compound, water and oil red EGN20 minute (1200rpm, Jiffy agitator).Then, use water-bath, temperature is elevated to 55 ℃, and other 10 minutes of mix products.Add 20% living solution of the linear alkylbenzene sulfonate (LAS) of 10ml.Other 10 minutes of 800rpm mix products, stir under 20 minutes at 800rpm then and make it be cooled to room temperature.

1b) the solution of polymkeric substance-modification:

10ml Mowiflex LPFX 416 (5% active mPVOH, Kuraray)

500 μ l AKK* perfume compound+5 μ l oil red EGN (* type 15-component perfume compound)

The 20ml demineralized water

Use high speed agitator, mix perfume compound, water and oil red EGN10 minute (1200rpm, Jiffy agitator).Add Mowiflex LPFX 416 and continue and stirred other 10 minutes.Then, use water-bath, temperature is elevated to 55 ℃, and continue to mix other 10 minutes.Add 10ml linear alkylbenzene sulfonate (LAS) 20% living solution and continue to mix other 10 minutes at 800rpm.Under stirring 20 minutes, 800rpm make product be cooled to room temperature.

After 24 hours, contrast solution (1a) has the significant red color layer of free perfume compound and dyestuff.The solution that contains Mowiflex (1b) remains uniform.

Embodiment 2: perfume compound and dyestuff are as beneficial agent

The solution of the preparation in embodiment (1b) of 1ml is dispersed in the 19ml five equilibrium non-fragrance detergent base and form product (2a), also the solution for preparing among embodiment (1b) with 1ml is dissolved in the demineralized water of 19ml and forms product (2b).

Two solution are placed cuvette, seal and at room temperature left standstill 24 hours.After during this period of time, estimate the existence of perfume compound in the headspace of two samples.

Under the situation of (2a), do not detect perfume compound.In (2b), detect perfume compound.

Embodiment 3: cats product is as beneficial agent

(3a) there is not the contrast encapsulant of polymkeric substance

At 50 ℃, (trolamine diester quat methosulphate Clariant) is dispersed in the demineralized water of 46.5ml with the Praepagen TQ of 1.75g.Then solution is cooled to 20 ℃ and add the AKK type perfume compound of 0.5ml.Use high speed agitator then, stirred solution 10 minutes.Make solution be warming up to 60 ℃ and stirred other 10 minutes then.Added 20% linear alkylbenzene sulfonate (LAS) solution of 1.25ml and stirred solution then other 10 minutes.Then solution is cooled to 20 ℃ and stirred other 20 minutes.

(3b) has modification PVOH

Use the demineralized water of 42.75ml, 1.75gPraepagen TQ, (Mowiflex LPFX 416 Kuraray), repeats identical process to the 5% modified poly ethylene alcoholic solution of the AKK type perfume compound of 0.5ml and 3.75ml.

When (3a), when adding LAS, observe extensive flocculation at the preparation contrast solution, this show as expected between LAS and Praepagen TQ, formed insoluble complex.

Yet, when preparation contains the solution (3b) of modification PVOH, do not observe flocculation, this shows the shell by Mowiflex, protection perfume compound/Praepagen TQ drop is not subjected to the influence of anion surfactant.

Embodiment 4: the perfume compound encapsulant is as beneficial agent

In embodiment 3, but Praepagen TQ replace with cation-modified perfume compound capsule (encaps) (Coolwear, Firmenich).

After finishing, the solution that contains modification PVOH is translucent, knows under opticmicroscope that wherein the dispersive encapsulant is a visible.Contrast solution is opaque, has few encapsulant.After 24 hours, contrast solution demonstrates sedimentation (sedimentation) and creaming (creaming), and the two is not present in the solution that contains modification PVOH.

In embodiment 3, the existence of modification PVOH shields cationic charge and the anion surfactant on (screen) encapsulant effectively, therefore makes it stable in the Betengent product of negatively charged ion-enrichment.

Embodiment 5: the dyestuff as beneficial agent is a product scope

In these embodiments, selected beneficial agent is a solvent violet 13, a kind of cosmetic level hydrophobic dye, and it is suitable as the fabric opalizer.The mineral oil (white, lightweight, Sigma Aldrich, CAS No. 8042-47-5) of mixing colouring agent (0.1g) and 10ml is up to dissolving fully.

Following acquisition comprises the product sample of the SV13 of encapsulation: use the Jiffy agitator under 1200rpm and 10 minutes, oil/SV13 of 500ul is dispersed in the demineralized water of 50ml.Solution is heated to 50 ℃ then, adds the 20% LAS solution of 10ml and stirring velocity is dropped to 800rpm.After 3 minutes, under 800rpm stirs, solution is cooled to 20 ℃.

Following acquisition comprises the product sample of the SV13 of encapsulation: use the Jiffy agitator under 1200rpm and 5 minutes, oil/SV13 of 500ul is dispersed in the demineralized water of 32ml.Added 5% solution of Mowiflex LPFX416 of 18ml and stirred solution then other 5 minutes.Solution is heated to 50 ℃ then, adds the 20% LAS solution of 10ml and stirring velocity is dropped to 800rpm.After 3 minutes, under 800rpm stirs, solution is cooled to 20 ℃.

For whether test dye is successfully encapsulated, each solution of 3ml is added in the commercially available product that contains tensio-active agent that gets of 10ml.Measure the reflection spectrum of solution then by following manner: fill 1 centimetre of PMMA cuvette with solution, cover three sides with blank sheet of paper, the slit that then blank face is butted on mutually Color 17 spectrophotometers (6mm slit plate, minute surface is got rid of, the UV eliminating) is placed.Bigger-b* value shows that more dyestuff is released in the product.

?	Product	B* before interpolation	B* with SV13	B* with SV13+Mowiflex
					5a	The Small-and-Mighty detergent for washing clothes	6.94	-10.17	-0.49
5b	Dettol antimicrobial surface sanitising agent	-1.69	-7.52	-5.37
					5c	PantenePro-V ices bright shampoo	-0.23	-6.43	-5.19
5d	The pleasant shower Gel of Simple mile	-0.63	-5.26	-4.33
					5e	The Boots bathing is revealed	-7.19	-10.92	-9.94
5f	Palmolive Aquarium Gel Liquid soap	-2.35	-7.18	-5.89

All can find out that the encapsulation of dyestuff reduces the degree of dyeing product body significantly among the embodiment 5a-5f.

Claims (14)

1. composition, it comprises that the tensio-active agent of 1-99wt% and at least a diameter are the microparticle of 100nm-2mm, described microparticle comprises:

I) comprise hydrophobic benefit reagent core and,

Ii) comprise shell uncharged hydrophobically modified, water-soluble, film-forming polymers, wherein film keeps complete basically in the presence of tensio-active agent, but dissolves when reducing surfactant concentrations, discharges beneficial agent thus.

2. according to the composition of claim 1, wherein said particle or each particulate diameter are the 1-1000 micron, preferably 1-100 micron, most preferably 1-50 micron.

3. according to each composition in the aforementioned claim, wherein the main chain of film-forming polymer is selected from: polyvinyl alcohol, polyvinyl acetate, ether of cellulose, polyoxyethylene, starch, polyvinylpyrrolidone, polyacrylamide, polyvinyl methyl ether-maleic anhydride, polymaleic anhydride, styrene-maleic anhydride, Natvosol, methylcellulose gum, polyoxyethylene glycol, Cellulose,ether with glycolic acid, polyacrylate, alginic acid ester or salt, acrylamide copolymer, guar gum, casein, ethene-maleic anhydride resin series, polymine, Type 3U, ethylmethylcellulose, hydroxyethylmethyl-cellulose and its mixture.

4. according to each composition in the aforementioned claim, wherein the pre-reaction by film-forming polymer and acetal or aldehyde obtains hydrophobic modified.

5. according to each composition in the aforementioned claim, wherein the polymkeric substance of modification has:

A) in comprising greater than the water of one or more anionic/nonionic of the concentration of 1 grams per liter or cats product 20 ℃ solubleness or dispersiveness: less than 0.5 Grams Per Hour and,

When b) concentration in water is less than 1 grams per liter when anionic/nonionic or cats product, solubleness or dispersiveness: greater than 0.5 Grams Per Hour.

6. according to each composition in the aforementioned claim, wherein to stem from molecular weight be 10kD to 300kD, preferably 20kD to 200kD, the polyvinyl alcohol of 75kD to 175kD most preferably to the polymkeric substance of modification.

7. according to each composition in the aforementioned claim, wherein the polymkeric substance of modification stems from the polyvinyl alcohol that the hydrolysis scope is 60-99%.

8. according to each composition in the aforementioned claim, wherein the polymkeric substance of modification stem from polyvinyl alcohol and have according to DIN 053 015 measure 20 ℃ 1 to 100mPa.s viscosity, by 4% solution.

9. according to each composition in the aforementioned claim, wherein polymkeric substance is with hydrophobic deriveding group modification, and described hydrophobic deriveding group stems from ClogP greater than 0.5 fertile material.

10. according to each composition in the aforementioned claim, wherein the fertile material of hydrophobic deriveding group is selected from the group that comprises butyraldehyde, octanal, dodecyl aldehyde, 2-ethyl hexanal, hexanaphthene formaldehyde, citral, propionic aldehyde, (2-methoxy ethoxy) dimethylacetal ((2-methoxyethoxy) acetaldehyde dimethylacetal) and phenyl aldehyde.

11. according to each composition in the aforementioned claim, wherein tensio-active agent is selected from anionic detersive surfactant or cats product, it is the softening actives of conditioning.

12. according to each composition in the aforementioned claim, wherein beneficial agent comprises perfume compound.

13. a method that is used for treat surface, it comprises the steps: to make according to each composition among the claim 1-12 and contacts with fabric, hair or living tissue.

14. a method for compositions for preparing according to claim 1-13, it comprises the steps:

A) provide the aqueous solution of the film-forming polymer of uncharged, hydrophobically modified, have the hydrophobic benefit reagent that is dispersed in wherein,

B) around dispersive hydrophobic benefit reagent, form uncharged, hydrophobically modified film-forming polymer layer and

C) stablize described layer with tensio-active agent.