Home care compositions

Abstract

A home care composition comprising a. one or more home care ingredients; and b. microcapsules, each microcapsule comprising a polymeric core and shell, said core including perfume; wherein each shell comprises at least one polymer comprising at least 50% by weight in relation to the total weight of the polymer of units corresponding to at least a monomer A of the formula (I): CH2=CR1(COO-R2O-[-CO-CH2-CH2-CH2-CH2-CH2-O-]x-H) (I) where - R1 is a hydrogen atom or methyl group, - R2 is a linear or branched alkylene group in C1-C6, preferably an ethylene group, and - x is a real number between 1 and 10, preferably between 1 and 3, or formula (II): CH2=CR1(CO-[O-CH2-CH2-CH2-CH2-CH2-CO-]x-OH) (II) where - R1 is a hydrogen atom or methyl group, and - x is a real number between 1 and 10, preferably between 1 and 3.

Description

[0001] HOME CARE COMPOSITIONS

[0002] The present invention relates to home care, including laundry, compositions comprising microcapsules that are polymer-based shell and a core with perfume included therein.

[0003] Microcapsules are used to protect, vectorize and / or control the release of perfume included in a core composition surrounded by a polymeric shell. The implementation of interfacial polymerization processes forming polymeric shells based on polyurethanes is for example widely used to encapsulate active ingredients. However, polyurethanes have limited properties and use and very low biodegradability.

[0004] EP0230329 describes a monomer comprising a (meth)acrylate group and a caprolactone-like group, as well as its use as a comonomer in emulsion or suspension polymerization processes.

[0005] W00220683 described in examples 3, 8, 9, 10 and 12, the formation of microcapsules comprising a core and a shell. The core is a polymerized adhesive with a composition of up to 10% by weight of carpolactone acrylate. The shell is formed of colloidal aqueous compositions. There is a need for alternative particles, which may not have an adhesive character.

[0006] Despite the prior art, there is a need for improved home care compositions, for example laundry compositions, comprising polymer-based core and shell microcapsules with perfume included in the core.

[0007] According to a first aspect of the invention, there is provided a home care composition comprising

[0008] a. one or more home care ingredients; and

[0009] b. microcapsules, each microcapsule comprising a polymeric core and shell, said core including perfume;

[0010] wherein each shell comprises at least one polymer comprising at least 50% by weight in relation to the total weight of the polymer of units corresponding to at least a monomer A of the formula (I):

[0011] CH2=CR1(COO-R2O-[-CO-CH2-CH2-CH2-CH2-CH2-O-]X-H) (I)

[0012] where

[0013] - R1is a hydrogen atom or methyl group,- R2is a linear or branched alkylene group in C1-C6, preferably an ethylene group, and - x is a real number between 1 and 10, preferably between 1 and 3,

[0014] or formula (II):

[0015] CH2=CR1(CO-[O-CH2-CH2-CH2-CH2-CH2-CO-]X-OH) (II)

[0016] where

[0017] - R1is a hydrogen atom or methyl group, and

[0018] - x is a real number between 1 and 10, preferably between 1 and 3.

[0019] According to a second aspect of the invention, there is provided a method of treating a home care substrate, the method comprising contacting the substrate with a composition of the first aspect.

[0020] According to a third aspect of the invention, there is provided a method of laundering a fabric, the method comprising contacting the fabric with a composition of the first aspect.

[0021] According to a fourth aspect of the invention, there is provided use of a laundry composition of the first aspect to launder a fabric.

[0022] According to a fifth aspect of the invention, there is provided a method of making a home care composition of the first aspect comprising the step of including in the composition:

[0023] a. one or more home care ingredients; and

[0024] b. microcapsules, each microcapsule comprising a polymeric core and shell, said core including perfume;

[0025] wherein the each shell comprises at least one polymer comprising at least 50% by weight in relation to the total weight of the polymer of units corresponding to at least a monomer A of the formula (I):

[0026] CH2=CR1(COO-R2O-[-CO-CH2-CH2-CH2-CH2-CH2-O-]X-H) (I)

[0027] where

[0028] - R1is a hydrogen atom or methyl group,

[0029] - R2is a linear or branched alkylene group in C1-C6, preferably an ethylene group, and - x is a real number between 1 and 10, preferably between 1 and 3,

[0030] or formula (II):CH2=CR1(CO-[O-CH2-CH2-CH2-CH2-CH2-CO-]X-OH) (II)

[0031] where

[0032] - R1is a hydrogen atom or methyl group, and

[0033] - x is a real number between 1 and 10, preferably between 1 and 3.

[0034] Preferably the home care substrate is a fabric, as defined herein.

[0035] Preferably the home care composition is a laundry composition.

[0036] Size of Perfume Microcapsule

[0037] Preferably, the microcapsules of the laundry compositions have a median volume size between 1 pm and 100 pm, preferably between 1 and 50 pm. The median volume size of particles, or droplets from which they are formed, also known as D50, corresponds to the size of the particles defined in such a way that 50% by volume of the particles are smaller than D50. The median volume size can be determined by light diffraction, where said particles or droplets are dispersed in a liquid medium. It can be determined by light diffraction, with a laser particle size analyzer. It can be for example determined by light diffraction using a Malvern MasterSizer® laser particle size analyzer, specifically MasterSizer® 3000, where said particles or droplets are dispersed in a liquid medium.

[0038] Monomer A

[0039] In a first aspect of the polymer, the monomer A is of the formula (III):

[0040] CH2=CH(COO-R2O-[-CO-CH2-CH2-CH2-CH2-CH2-O-]X-H) (III)

[0041] where

[0042] - R2is a linear or branched alkylene group in C1-C6, and

[0043] - x is a real number between 1 and 10, preferably between 1 and 3.

[0044] In a second aspect of the polymer, the monomer A has the formula (IV):

[0045] CH2=CCH3(COO-R2-O-[-CO-CH2-CH2-CH2-CH2-CH2-O-]X-H) (IV)

[0046] where

[0047] - R2is a linear or branched alkylene group in C1-C6, and

[0048] - x is a real number between 1 and 10, preferably between 1 and 3.

[0049] In a third aspect of the polymer, the monomer A has the formula (V):

[0050] CH2=CH(CO-[O-CH2-CH2-CH2-CH2-CH2-CO-]X-OH) (V)where

[0051] - x is a real number between 1 and 10, preferably between 1 and 3.

[0052] In a fourth aspect of the polymer, the monomer A has the formula (VI):

[0053] CH2=CCH3(CO-[O-CH2-CH2-CH2-CH2-CH2-CO-]X-OH) (VI)

[0054] where

[0055] - x is a real number between 1 and 10, preferably between 1 and 3.

[0056] In monomers A with the formula (I), (II), (III), (IV), (V), or (VI), x is often an average number. In this case, x reflects the presence and proportions of at least 2 monomers A1 and A2 of the same formula except that x is a natural number of different values for A1 and A2 respectively. In other words, monomer A can be a mixture of molecules with the same groups R1and R2so that x is a real number reflecting the average of the number of motifs of all the molecules in the composition of monomer A used for the synthesis of the polymer. For example, for a given monomer A, some molecules include a single motif -CO-CH2-CH2-CH2-CH2-CH2-O-, while others include 2 motifs -CO-CH2-CH2-CH2-CH2-CH2-O-, so the value of x is a decimal number between 1 and 2 corresponding to the molar mean of the molecules of monomer A.

[0057] In monomers A with the formula (I), (III) or (IV), R2 is often a linear alkylene group in C1-C6. In this case, R2is chosen from methylene, ethylene, n-propylene, n-butylene, n-pentylene and n-hexylene. R2is preferably an ethylene group (ethandiyl). R2can also be an alkylene group branched at C1-C6.

[0058] A particularly preferred monomer A, in which R1is a hydrogen atom, R2is an ethanediyl group, and x is equal to 2, has the formula (VII):

[0059] CH2=CH(COO-CH2-CH2-O-[-CO-CH2-CH2-CH2-CH2-CH2-O-]2-H) (VII)

[0060] In one aspect, monomer A is a mixture of monomers of different formulas. For example, monomer A may consist of a mixture of monomers with the formula (I) such that R1is a hydrogen and monomers with the formula (I) such as R1is a methyl, or consist of a mixture of these two monomers.

[0061] Commercially available monomers that can be used as A monomers include, but are not limited to, SartomerO's product SR495B, Daicel Chem Tech's Placcel® FA1, FA2, FA3, FA4, FA5, or FA10L products, Daicel Chem Tech's Placcel® FM1, FM2, FM3, FM4 or FM5 products,Photomer 4034, the products Miramer® M100 and SC1010 and SC1033S marketed by Miwon, the product Hydroxyethyl caprolactone Acrylate (HECLA) marketed by BASF.

[0062] Monomer A may include a mixture of monomers of the formula (I) and (II) or consist of a mixture of monomers of the formula (I) and (II).

[0063] Monomer A may also comprise a mixture of monomers of formula (III) and (IV) or consist of a mixture of monomers of formula (III) and (IV).

[0064] Monomer A may also comprise a mixture of monomers of the formula (V) and (VI) or consist of a mixture of monomers of the formula (V) and (VI).

[0065] Monomer A may also comprise a mixture of monomers of formula (III) and (V) or consist of a mixture of monomers of formula (III) and (V).

[0066] Monomer A may also comprise a mixture of monomers of the formula (IV) and (VI) or consist of a mixture of monomers of the formula (IV) and (VI).

[0067] Monomer A may also comprise a mixture of monomers of formula (III) and (VI) or consist of a mixture of monomers of formula (III) and (VI).

[0068] Monomer A may also comprise a mixture of monomers of formula (IV) and (V) or consist of a mixture of monomers of formula (IV) and (V).

[0069] When monomer A comprises a binary mixture of monomers with different formulas (I) to (VI) or consists of a binary mixture of monomers with different formulas (I) to (VI), the weight ratio between the two components of the mixture may vary. It is usually 0.1 :99.9 to 99.9:0.1 , often 1:99 to 99:1, for example 10:90 to 90:10.

[0070] In another aspect, monomer A comprises a ternary or quaternary mixture of monomers of different formulas (I) to (VI) or consists of a ternary or quaternary mixture of monomers of formula (I) to (VI) different.

[0071] In the microcapsules, the polymer often comprises more than 50% by weight in relation to the total weight of the polymer, preferably at least 60%, preferably at least 75%, preferably at least 90%, preferably at least 95% by weight, e.g. from 90% to 95% or from 95% to 96% or from 96% to 97% or from 98% to 99% of units corresponding to monomer A. In a particularly preferred aspect, the polymer comprises at least 99% by weight relative to the total weight of the polymer, preferably at least 99.5%, units corresponding to monomer A relative to the total weight of the polymer.In a process of making the microcapsules, the polymer comprises at least 85% by weight in relation to the total weight of the polymer, preferably at least 90%, e.g. from 90% to 97% or from 92% to 96% of units corresponding to monomer A. This embodiment applies in particular when the monomer A has the formula (I) or the formula (VII).

[0072] In an embodiment, the polymer does not include, or substantially not, units corresponding to a multifunctional monomer B.

[0073] Monomer B

[0074] The polymer may include units corresponding to a multifunctional monomer B.

[0075] The multifunctional nature of these units allows these units to cross-link, by linking them, typically linear macromolecular chains, if necessary with a comb structure, formed by units corresponding to monomer A and possibly other units corresponding to other monofunctional or multifunctional monomers.

[0076] The multifunctional B monomer can be chosen, for example, from molecules carrying at least two polymerizable functions with groups included in monomer A, in particular with -OH, -COOH and / or (meth)acrylic groups. These can be functions chosen from the group consisting of acrylate, methacrylate, vinyl ether, N-vinyl ether, mercaptoester, thiolene, siloxane, epoxy, oxetane, urethane, isocyanate, and peroxide. In a particular embodiment, the two or more polymerizable functions of monomer B are identical. In a particular embodiment, monomer B has two polymerizable functions. In a particular embodiment, monomer B has two identical polymerizable functions.

[0077] Advantageously, the multifunctional B monomer is a multi(meth)acrylate monomer, such as a polyacrylate or a polymethacrylate, comprising at least two (meth)acrylate groups, such as the acrylate or methacrylate group.

[0078] In a first embodiment, monomer B is a difunctional monomer, with exactly two reactive functions, also referred to as "difunctional monomer B1" or more simply "monomer B1". It is preferably a di(meth)acrylate,

[0079] i.e. with exactly two (meth)acrylate groups.The multi(meth)acrylate monomer typically comprises a multivalent moiety carrying from 2 to 8 methacrylate groups. In the case of a monomer B1 di(meth)acrylate, the two methacrylate groups are preferably at each end of the bivalent group.

[0080] The multivalent group can be saturated or unsaturated, linear, branched, alicyclic or cyclic, aliphatic or aromatic.

[0081] The multivalent group includes carbon and hydrogen atoms and may include one or more heteroatoms selected from oxygen and nitrogen. The multivalent group can therefore include at least one function chosen from ether, carbonyl, ester, urethane or amine.

[0082] The multivalent group is for example a group derived from a linear, branched or cyclic alkane or an aromatic compound.

[0083] A multivalent group may include one or more aromatic rings, such as a phenyl.

[0084] Monomer B can be a monomer referred to as polyol-multi(meth)acrylate, polyol comprising at least two alcohol functions, and polyol preferably comprising the same number of alcohol functions as the number of (meth)acrylate groups. Polyol-multi(meth)acrylate comprises a multivalent group, preferably derived from a polyol with 2 to 8 alcohol functions.

[0085] The polyol comprising from 2 to 8 alcohol functions can be chosen from alpha, omega-diols which comprise a linear or cyclic carbon chain, and correspond to a multivalent group derived from a linear alkane. Among the alpha-omega-diols, we can mention alpha-omega-diols in C2-C12, in particular alpha-omega-diols in C4-C10, including ethylene glycol, propylene glycol or a polyethylene glycol comprising at least two ethylene motifs. Examples of polyethylene glycol include diethylene glycol, triethylene glycol, tetraethylene glycol or tricyclodecane dimethanol. Polyol can be a branched or cyclic polyol. An example of a branched polyol is a branched diol such as 1,3-butanediol, or a branched polyol with six alcohol functions such as dipentaerytritol.

[0086] In the case of a monomer B1 di(meth)acrylate, the bivalent group may be referred to as "alkylene" or "alkanediyl". In this case, the monomer B1 di(meth)acrylate is, for example, an alkylene di(meth)acrylate, which can also be referred to as diol-di(meth)acrylate. Linear alkylene diacrylates, particularly C1 to C12, and linear alkylene dimethacrylates, including C1 to C12, are well suited as B1 di(meth)acrylate monomers. The monomer B1 alkylene-di(meth)acrylate can also be referred to as diol-di(meth)acrylate, diol being for example an alpha, omega-diol in C2-C12, and more particularly an alpha, omega-diol in C6-C10.In a particular embodiment, the multivalent group consists of carbon, hydrogen, and oxygen, or consists of carbon, hydrogen, and nitrogen. For example, the multivalent group is saturated and includes alcohol and / or ether and / or amine functions.

[0087] In particular, monomer B can be free of more than one urethane group. In particular, it can be free of any urethane group.

[0088] Monomer B1

[0089] The B1 monomer comprises a bivalent group. Monomer B1 can carry a reactive function, preferably a (meth)acrylate group, at each of its ends. The divalent group can be saturated or unsaturated, linear, branched, alicyclic or cyclic, aliphatic or aromatic.

[0090] The divalent group includes carbon and hydrogen atoms and may include one or more heteroatoms chosen from oxygen and nitrogen. The divalent group can therefore include at least one function chosen from ether, carbonyl, ester, urethane or amine.

[0091] In the first case, the bivalent group is a group derived from an alkane, linear, branched or cyclic, designated by the term "alkylene" or "alkanediyl". In this case, the monomer B1 di(meth)acrylate is, for example, an alkylene di(meth)acrylate, which can also be referred to as diol-di(meth)acrylate. Linear alkylene diacrylates, particularly C1 to C12, and linear alkylene dimethacrylates, including C1 to C12, are well suited as B1 di(meth)acrylate monomers. The monomer B1 alkylene-di(meth)acrylate can also be referred to as diol-di(meth)acrylate, diol being for example an alpha, omega-diol in C2-C12, and more particularly an alpha, omega-diol in C6-C10.

[0092] In the second case, the bivalent group may include one or more aromatic rings, such as a phenyl.

[0093] In a third case, the bivalent group consists of carbon, hydrogen and oxygen. It is preferably saturated and includes alcohol and / or ether functions.

[0094] In particular, the B1 monomer may be free of more than one urethane group. In particular, it can be free of any urethane group.

[0095] Difunctional B1 monomers include:

[0096] - 1,6-hexanediol diacrylate (HDDA)

[0097] ,- 1,6-hexanediol di methacrylate,- 1,10-decanediol diacrylate,

[0098] - 1,10-decanediol dimethacrylate (DDDMA),

[0099] - polyethylene glycol dimethacrylate,

[0100] - 1,9-nonanediol dimethacrylate,

[0101] - 1,4-butanediol dimethacrylate,

[0102] - 2,2-bis(4-methacryloxyphenyl) propane,

[0103] - 1,3-butanediol dimethacrylate,

[0104] - 1,4-butanediol diacrylate,

[0105] - ethylene glycol diacrylate,

[0106] - 1,5-pentanediol dimethacrylate,

[0107] - 1,4-phenylene diacrylate,

[0108] - tetraethylene glycol diacrylate,

[0109] - ethylene glycol dimethacrylate,

[0110] - diethylene glycol diacrylate,

[0111] - triethylene glycol diacrylate,

[0112] - triethylene glycol di methacrylate,

[0113] - difunctional amines (meth)acrylates,

[0114] - tricyclodecane dimethanol diacrylate,

[0115] In this first particular embodiment and its particular aspects, the polymer may comprise not more than 30%, preferably not more than 25% by weight, e.g. from 1% to 20%, of units corresponding to monomer B. For example, the polymer may consist of a maximum of 30%, preferably a maximum of 25% by weight, e.g. from 1% to 20%, of units corresponding to the multifunctional monomer B1 di(meth)acrylate in relation to the total weight of the polymer. Depending on a particular option, monomer B represents 1% to 15% by weight, e.g. 1% to 10% by weight, and preferably 3% to 7% by weight, in relation to the total weight of the monomers, and possibly the photoinitiator, which are used to prepare the microcapsules. The monomer B1 can for example represent from 1% to 15% by weight, for example from 1% to 10% by weight, and preferably from 3% to 7% by weight, in relation to the total weight of the monomers, and possibly of the photoinitiator, which are used to prepare the microcapsules.

[0116] Monomer B2

[0117] In a second embodiment, monomer B is a multifunctional multi(meth)acrylate monomer, different from a monomer B1 di(meth)acrylate, comprising at least two urethane groups and at least two (meth)acrylate groups.In particular, it can be a di(meth)acrylate monomer with urethane groups that can also be referred to as urethane di(meth)acrylate. The chemical structure of urethane dimethacrylate includes, for example, a carbon chain comprising at least two urethane functions and a (meth)acrylate group at each of the two ends of the chain.

[0118] In the first case, the monomer B2 is represented by the formula (VIII):

[0119] CH2=CR3-CO-O-R4-O-CO-NH-R5-NH-CO-O-R4-O-CO-CR3=CH2(VIII)

[0120] where- R3is a hydrogen atom or a methyl group,

[0121] - R4is a linear or branched aliphatic group in C1-C6, preferably an ethyl group,

[0122] - R5is a linear or branched aliphatic group in C6-C12 or an alicyclic group or an aromatic group.

[0123] In the first case, the monomer B2 can be a diurethane dimethacrylate in which the R3group is a methyl group, R4is an ethanedyyl, and the R5group is an alkylene branched to C6-C10, preferably to C8-C10. For example, the monomer B2 may correspond to formula (IX) and / or have as CAS number 72869-86-4:

[0124] CH2=C(CH3)-COO-(CH2)2-O-CO-NH-CH2-CH(CH3)-CH2-C(CH3)2-(CH2)2-NH-CO-O-(CH2)2- OCO-C(CH3)=CH2(IX)

[0125] In a second case, the monomer B2 can correspond to the formula (X):

[0126] CH2=CR3-CO-O-R4-O-[CO-NH-R5-NH-CO-O-R6-O]y-R4-O-CO-CR3=CH2(X)

[0127] where- R3is a hydrogen atom or a methyl group,

[0128] - R4is a linear or branched aliphatic group in C1-C6, preferably an ethyl group,

[0129] - R5and R6are linear or branched C6-C12 aliphatic groups or alicyclic groups or aromatic groups,

[0130] - y is a real number between 1 and 10, preferably between 1 and 3.

[0131] In a third case, the monomer B2 can be represented by the formula (XI):

[0132] R8(R7-O-CO-NH-R5-NH-CO-O-R4-O-CO-CR3=CH2)n (XI)

[0133] in which- R3, R4, R5are defined as above,

[0134] - R7is a linear or branched divalent aliphatic group in C1- C10 that can have ether, carbonyl, ester or amine functions,

[0135] - R8is an n-valent group,

[0136] - n is a real number between 3 and 10.

[0137] In a fourth case, the monomer B2 can correspond to formula (XII):

[0138] R8(R7- O[CO-NH-R5-NH-CO-O-R6-O]y-R4-O-CO-CR3=CH2)n2 (XII)

[0139] in which

[0140] - R3, R4, R5, R6, R7, R8, n and y are defined as above.

[0141] The monomer B2 according to formula (IX) can be obtained by reacting a diisocyanate compound with an aliphatic monoalcohol carrying a (meth)acrylate group. An isocyanate function reacts with the -OH function of a C1-C6 hydroxyalkyl methacrylate. The second isocyanate function can react with an R 6 chain expander carrying a function capable of reacting with the isocyanate as an alcohol and a function capable of reacting with the aliphatic monoalcohol carrying the (meth)acrylate group as a carboxylic acid-COOH function forming a diurethane di(meth)acrylate.

[0142] Monomer B2 according to formula (X) can be obtained by reacting three or more diisocyanate compounds with aliphatic monoalcohols carrying a (meth)acrylate group. An isocyanate function reacts with the -OH function of a C1-C6 hydroxyalkyl methacrylate. The second isocyanate function of isocyanate compounds reacts with a polyfunctional compound carrying the R7 and R8 groups such as a polyol to form a multifunctional poly(meth)acrylate and polyurethane monomer.

[0143] Monomer B2 according to formula (XI) can be obtained by the reaction of three or more diisocyanate compounds with aliphatic monoalcohols carrying a (meth)acrylate group. An isocyanate function of diisocyanate compounds reacts with the -OH function of a C1-C6 hydroxyalkyl methacrylate. The second function of diisocyanate compounds can also react with a difunctional R 6 chain expander, one of whose functions is capable of reacting with isocyanate. This function can be an alcohol. The second function of the chain expander can react with a polyfunctional compound carrying the R7and R8groups. This second function of the chain expander may be a carboxylic acid that may react with the polyfunctional compoundwhich may be a polyol. A multifunctional B2 polyurethane poly(meth)acrylate monomer is thus obtained.

[0144] Diisocyanate compounds that can be used for the preparation of B2 monomer according to formulas (VIII), (IX), (X) and (XI) can be:

[0145] - aliphatic such as hexamethylene diisocyanate, tetramethylene diisocyanate, dodecamethylene diisocyanate, 2,2,4-trimethylhexamethylene diisocyanate, 2,4,4-trimethylhexamethylene diisocyanate, 2-methylpentane-1,5-diisocyanate, 3-methylpentane-1,5-diisocyanate,

[0146] - alicyclics such as isophorone diisocyanate, xylylene diisocyanate hydrogenated, 4,4'-dicyclohexylmethane diisocyanate, 1,4-cyclohexane diisocyanate, methylcyclohexylene diisocyanate, 1,3-bis(isocyanate methyl)cyclohexane;

[0147] - Aromatic products such as naphthylene diisocyanate, toluene diisocyanate, 4,4'-diphenylmethanediisocyanate, 1,3-phenylene diisocyanate.

[0148] The so-called R6chain expander groups that can be used for formulas (IX) and (XI) can be difunctional linear or branched aliphatic compounds carrying a carboxylic acid function at the end of the chain and an alcohol function at the other end, such as glycolic acid, 3-hydroxypropanoic acid, 4-hydroxybutanoic acid, 5-hydroxypentanoic acid or 6-hydroxyhexaenoic acid.

[0149] R6chain extenders can also be reaction products between a diol and a carboxylic diacid, or between a diol and a cyclic ester. Diols that can be used are diethylene glycol, 2,2'-dimethyl-1,3-propan-diol or 1,1'-[(1-methyl-1,2-ethanediyl)bis(oxy)]bis-2-propanol while the carboxylic diacid can be hexanedioic acid. Cyclic esters can be lactones such as propiolactone, butyrolactone, valerocaprolactone, or caprolactone.

[0150] The R8group is a multivalent group to which n groups as given in the formulas are attached by covalent links. It can preferably include carbon and hydrogen atoms and may include one or more heteroatoms chosen from oxygen and nitrogen. The R8group can therefore include at least one function chosen from ether, carbonyl, ester, or amine.

[0151] Polyfunctional compounds carrying the R7and R8groups can be polyols such as

[0152] alpha, alpha', alpha"-1, 2, 3-propanetriyltris(omega-hydroxypoly(oxy(methyl-1,2-ethanediyl))), pentaerythritol or di pentaerythritol.In a third embodiment, monomer B is a monomer B3 selected from multi(meth)acrylates comprising 3, 4, 5 or 6 (meth)acrylate functionalities, such as epoxidized soybean oil and (meth)acrylate (CAS 91722-14-4), poly(methacrylate) polyols modified by caprolactone motifs, e.g. by at least two caprolactone motifs. These include Dipentaerythritol hexaacrylate modified with 2 to 6 moles of caprolactone (DP2CAHA or DP6CAHA), in particular the Etermer® products EM2692 (DP2CAHA) and EM2696 (DP6CAHA) marketed by Eternal.

[0153] Binary mixtures of B1 and B2, B1 and B3 or B2 and B3 monomers may be used as B monomers. It is also possible to use a ternary mixture of monomers B1, B2 and B3 as monomer B.

[0154] Additional examples of multifunctional B monomers include:

[0155] - allyl methacrylate,

[0156] - N,N'-methylenebisacrylamide,

[0157] - 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy)phenyl]propane,

[0158] - polyethylene glycol diglycidyl ether,

[0159] - N,N-diallylacrylamide,

[0160] - 2,2-bis[4-(2-acryloxyethoxy)phenyl]propane,

[0161] - multifunctional acrylates such as di pentaerythritol pentaacrylate, 1,1,1 -trimethylol propane triacrylate, 1,1,1 -trimethylolpropane trimethacrylate,

[0162] difunctional amines (meth)acrylates,

[0163] - ethylenediamine tetramethacrylate,

[0164] - pentaerythritol triacrylate,

[0165] - pentaerythritol tetraacrylate,

[0166] - acrylates also having other reactive functions, such as propargyl methacrylate, 2-cyanoethyl acrylate,

[0167] - tricyclodecane dimethanol diacrylate,

[0168] - hydroxypropyl methacrylate,

[0169] - N-acryloxysuccinimide,

[0170] - N-(2- hydroxypropyl)methacrylamide,

[0171] - N-(3-aminopropyl)methacrylamide hydrochloride,

[0172] - N-(t-BOC-aminopropyl)methacrylamide,

[0173] - 2-aminoethyl methacrylate hydrochloride,

[0174] - monoacryloxyethyl phosphate,

[0175] - o-nitrobenzyl methacrylate,

[0176] - acrylic anhydride,

[0177] - 2-(tert-butylamino)ethyl methacrylate,- N,N-diallylacrylamide,

[0178] - glycidyl methacrylate,

[0179] - 4-(2- acryloxyaehoxy)-2-hydroxybenzophenone,

[0180] - N-(Phthalimidomethyl)acrylamide,

[0181] - cinnamyl methacrylate.

[0182] In a first particular aspect of this particular embodiment, monomer A comprises a monomer of formula (I) and monomer B is a linear alkyleneediacrylate, in particular 1,6-hexanedioldiacrylate.

[0183] In a second particular aspect of this particular embodiment, monomer A comprises a monomer of formula (II) and monomer B is a linear alkyleneediacrylate, in particular 1 ,6-hexanedioldiacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a di pentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0184] In a third particular aspect of this particular embodiment, monomer A comprises a monomer of formula (III) and monomer B is a linear alkyleneediacrylate, in particular 1,6-hexanedioldiacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a di pentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0185] In a fourth particular aspect of this particular embodiment, monomer A comprises a monomer of formula (IV) and monomer B is a linear alkyleneediacrylate, in particular 1,6-hexanedioldiacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a di pentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0186] In a fifth particular aspect of this particular embodiment, monomer A comprises a monomer of formula (V) and monomer B is a linear alkyleneediacrylate, specifically 1,6-hexanedioldiacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a di pentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0187] In a particular sixth aspect of this particular embodiment, monomer A comprises a monomer of formula (VI) and monomer B is a linear alkyleneediacrylate, in particular 1,6-hexanedioldiacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a di pentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0188] In a particular seventh aspect of this particular embodiment, monomer A comprises a monomer of formula (VII) and monomer B is a linear alkylenediacrylate, specifically 1,6-hexanedioldiacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a di pentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0189] In an eighth particular aspect of this particular embodiment, monomer A comprises a monomer of formula (I) and monomer B is a linear alkyleneedimethacrylate, in particular 1,6-Hexanediol Dimethacrylate or ethylenedimethacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a dipentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0190] In a ninth particular aspect of this particular embodiment, monomer A comprises a monomer of formula (II) and monomer B is a linear alkyleneedimethacrylate, specifically 1,6-Hexanediol Di methacryl ate or ethylenedimethacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a dipentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0191] In a particular tenth aspect of this particular embodiment, monomer A comprises a monomer of formula (III) and monomer B is a linear alkyleneedimethacrylate, in particular 1,6-Hexanediol Di methacryl ate or ethylenedimethacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a dipentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0192] In a particular eleventh aspect of this particular embodiment, monomer A comprises a monomer of formula (IV) and monomer B is a linear alkyleneedimethacrylate, in particular 1,6-Hexanediol Di methacryl ate or ethylenedimethacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a dipentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0193] In a particular twelfth aspect of this particular embodiment, monomer A comprises a monomer of formula (V) and monomer B is a linear alkyleneedimethacrylate, in particular 1,6-Hexanediol Di methacryl ate or ethylenedimethacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a dipentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0194] In a thirteenth particular aspect of this particular embodiment, monomer A comprises a monomer of formula (VI) and monomer B is a linear alkyleneedimethacrylate, in particular 1 ,6-Hexanediol Dimethacrylate or ethylenedimethacrylate, or a polyol-poly(meth)acrylate modifiedby caprolactone units, in particular a di pentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone,

[0195] In a particular fourteenth aspect of this particular embodiment, monomer A comprises a monomer of formula (VII) and monomer B is a linear alkyleneedimethacrylate, in particular 1 ,6-Hexanediol Dimethacrylate or ethylenedimethacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a di pentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone.

[0196] In this first particular embodiment and its particular aspects, the polymer may comprise not more than 10%, preferably not more than 5% by weight, more particularly not more than 2% by weight, e.g. from 1% to 2% by weight, or from 2% to 3% by weight, or from 3% to 4% by weight, or from 4% to 5% by weight, relative to the total weight of the polymer of units corresponding to the multifunctional B monomer. In this particular embodiment, the polymer typically comprises at least 0.1% by weight, more specifically at least 0.5% by weight relative to the total weight of the polymer of units corresponding to the multifunctional B monomer.

[0197] Monomer C

[0198] In a second particular embodiment, the polymer also includes units corresponding to a monofunctional C monomer. Monomer C typically comprises a single polymerizable function with groups included in monomer A and / or monomer B, in particular with -OH, -COOH and / or (meth)acrylic groups. It is mentioned that monomer C is different from monomer A. The monofunctional C monomer may be chosen, for example, from the monomers carrying a selected function from the group consisting of acrylate, methacrylate, vinyl ether, N-vinyl ether, mercaptoester, thiolene, siloxane, epoxy, oxetane, urethane, isocyanate and peroxide.

[0199] Advantageously, the monofunctional C monomer is a (meth)acrylate.

[0200] Advantageously, monofunctional monomer C is an alkyl (meth)acrylate comprising a single methacrylate group, which can also be referred to as alkyl mono(meth)acrylate. It may be selected from linear or branched C1-C22 alkyl acrylates, or linear or branched C3-C22 alkenyl acrylates, or linear or branched C1-C22 alkyl methacrylates, or linear or branched C3-C22 alkenyl methacrylates, the term "alkenyl" designating a hydrocarbon moiety that includes at least one unsaturation.

[0201] Examples include linear or branched C2-C22 alkyl acrylates, or linear or branched C2-C22 alkenyl acrylates, or linear or branched C2-C22 alkyl methacrylate, or linear or branched C2-C22 alkenyl methacrylates.It may be selected from linear or branched C12-C22 alkyl acrylates, or linear or branched C12-C22 alkenyl acrylates, or linear or branched C12-C22 alkyl methacrylates, or linear or branched C12-C22 alkenyl methacrylates.

[0202] Examples include C16-C18 alkyl acrylates, such as stearyl acrylate, or C16-C18 alkyl methacrylates.

[0203] Examples include C20-C22 alkyl acrylates, such as behenyl acrylate, or C20-C22 alkyl methacrylates.

[0204] Examples include C12-C14 alkyl acrylates, such as lauryl acrylate, or C12-C14 alkyl methacrylates.

[0205] Other examples include C2-C10 alkyl acrylates or methacrylates, such as ethyl, propyl, n-butyl, tert-butyl, isobornyl, or 2-ethyl-hexyl acrylates or methacrylates.

[0206] In a particular embodiment, the monofunctional C monomer is stearyl acrylate.

[0207] In a first aspect of this particular second embodiment, the polymer comprises less than 50% by weight, more specifically at most 20% by weight in relation to the total weight of the polymer of units corresponding to monofunctional monomer C. In this particular embodiment, the polymer generally comprises at least 5% by weight, more particularly at a content greater than or equal to 10% by weight in relation to the total weight of the polymer of units corresponding to monofunctional monomer C.

[0208] In a second aspect of this particular second embodiment, the polymer generally comprises at least 50% by weight, more particularly at least 55% by weight in relation to the total weight of the polymer of units corresponding to the monofunctional C monomer. Depending on a particular option, the polymer comprises 60% to 80% or 65% to 75% by weight of units corresponding to monomer C relative to the total weight of the polymer.

[0209] In a particular embodiment, the polymer comprises units corresponding to monomer A and units corresponding to monomer B. In a particular embodiment, the polymer comprises units corresponding to monomer A and units corresponding to monomer C. In a particular embodiment, the polymer comprises units corresponding to monomer A, units corresponding to monomer B and units corresponding to monomer C.In a first particular mode of implementation, the polymer comprises units corresponding to monomer A and units corresponding to monomer B1.

[0210] The multifunctional nature of these units allows these units to cross-link, by linking them, typically linear macromolecular chains, possibly with a comb structure, formed by units corresponding to monomer A and possibly other units corresponding to other monofunctional monomers, or multifunctional, different from B1.

[0211] In this embodiment, the monomer B1 can be a monomer B2 as described above, if the said monomer B2 is a di(meth)acrylate, i.e. it has exactly two (meth)acrylate groups.

[0212] It is mentioned that in this first mode of realization other units, corresponding to other monomers, denoted monomers D, may be present.

[0213] In a particular embodiment and according to a first particular aspect, monomer A comprises a monomer of formula (I) and monomer B1 is a linear alkylenedi(meth)acrylate, in particular 1,6-hexanedioldiacrylate, 1,6-hexanedioldimethacrylate, 1,10-decanedioldiacrylate or 1,10-decanediol di methacrylate, or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a dipentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone,

[0214] In a second particular aspect of this particular embodiment, monomer A comprises a monomer of formula (I) such that R1 is a hydrogen.

[0215] In a third particular aspect of this particular embodiment, monomer A comprises a monomer of formula (I) such that R1 is a methyl.

[0216] In a fourth particular aspect of this particular embodiment, monomer A comprises a monomer of formula (II).

[0217] It is mentioned that the polymer can include groups corresponding to a photoinitiator. For example, the polymer may comprise from 0.1% to 5% by weight such groups, in relation to the total weight of the polymer.

[0218] In an embodiment, the polymer comprises, in relation to the total weight of the polymer: from 50% to 99.9% by weight of units corresponding to monomer A,

[0219] - from 0% to 10% by weight of units corresponding to monomer B,- from 0% to 10% by weight of units corresponding to the C monomer,

[0220] - from 0.1% to 5% by weight of groups corresponding to a photoinitiator.

[0221] In an embodiment, the polymer comprises, in relation to the total weight of the polymer: - from 75% to 99.9% by weight of units corresponding to monomer A,

[0222] - from 0% to 10% by weight of units corresponding to monomer B,

[0223] - from 0% to 10% by weight of units corresponding to the C monomer,

[0224] - from 0.1% to 5% by weight of groups corresponding to a photoinitiator.

[0225] In an embodiment, the polymer comprises, in relation to the total weight of the polymer: - from 75% to 99.9% by weight of units corresponding to monomer A,

[0226] - from 0% to 10% by weight of units corresponding to monomer B,

[0227] - from 0% to 10% by weight of units corresponding to the C monomer,

[0228] - from 0.1% to 5% by weight of groups corresponding to a photoinitiator.

[0229] In an embodiment, the polymer comprises, in relation to the total weight of the polymer: - from 90% to 99.9% by weight of units corresponding to monomer A,

[0230] - from 0% to 10% by weight of units corresponding to monomer B,

[0231] - from 0% to 10% by weight of units corresponding to the C monomer,

[0232] - from 0.1% to 5% by weight of groups corresponding to a photoinitiator.

[0233] In an embodiment, the polymer comprises, in relation to the total weight of the polymer: - from 90% to 99.9% by weight of units corresponding to monomer A,

[0234] - from 1% to 5% by weight of units corresponding to monomer B,

[0235] - from 0% to 10% by weight of units corresponding to the C monomer,

[0236] - from 0.1% to 5% by weight of groups corresponding to a photoinitiator.

[0237] In an embodiment, the polymer comprises, in relation to the total weight of the polymer: - from 75% to 99.9% by weight of units corresponding to monomer A,

[0238] - from 1% to 5% by weight of units corresponding to monomer B,

[0239] - from 1% to 10% by weight of units corresponding to monomer C,

[0240] - from 0.1% to 5% by weight of groups corresponding to a photoinitiator.

[0241] In an embodiment, the polymer comprises, in relation to the total weight of the polymer: - from 90% to 99.9% by weight of units corresponding to monomer A,

[0242] - from 1% to 5% by weight of units corresponding to monomer B,- from 1% to 5% by weight of units corresponding to monomer C,

[0243] - from 0.1% to 5% by weight of groups corresponding to a photoinitiator.

[0244] In an embodiment, the polymer comprises, in relation to the total weight of the polymer:

[0245] - from 85% to 99.8% by weight of units corresponding to monomer A,

[0246] - from 0.1% to 10% by weight of units corresponding to the B1 monomer,

[0247] - from 0.1% to 5% by weight of groups corresponding to a photoinitiator.

[0248] In an embodiment, the polymer comprises, in relation to the total weight of the polymer:

[0249] - from 93% to 96% by weight of units corresponding to monomer A,

[0250] - from 3.9% to 6% by weight of units corresponding to the B1 monomer,

[0251] - from 0.1% to 1% by weight of groups corresponding to a photoinitiator.

[0252] An example of an embodiment is derived from 1,6-hexanediol diacrylate , or a polyol-poly(meth)acrylate modified by caprolactone units, in particular a dipentaerythritol hexaacrylate modified by 2 to 6 moles of caprolactone, used as monomer B1, and monomer with formula (VII) as monomer A. In this example, monomer B1 is preferably 3% to 7% by weight, preferably 4% to 6% by weight, and monomer A is preferably 93% to 97% by weight of the mixture of monomers A and B1 used for microcapsule synthesis. In this example, the polymer is preferably essentially made up of monomer A, monomer B1 and photoinitiator.

[0253] The shell of microcapsules typically comprises at least 50% by weight relative to the total weight of shell weight of the polymer's microcapsules, as described above. Preferably, the polymer content is at least 75% by weight in relation to the total weight of the shell of the microcapsules. A polymer content of at least 90% by weight in relation to the shell of the microcapsules is particularly preferred. In some advantageous aspects, the polymer content reaches 95% by weight, or even 99% by weight compared to the total weight of the shell of the microcapsules.

[0254] The core

[0255] The core of the microcapsules is typically a substance or a composition, also referred to as the "core composition" or simply the "core”. The core may be in liquid, viscous, or solid form.

[0256] The core comprises the perfume. The core optionally comprises, further to the perfume, a so-called active compound, which can produce an effect, in home care applications. It may in particular be a substance, compound, or material of a chemical or biological nature.In the present application, the terms “actives,” “active compounds,” “active agents,” or “active substance” may be used to refer to so-called active compounds, or mixtures or combinations thereof.

[0257] Core Formulation.

[0258] It is mentioned that the core composition may include at least one formulation medium of the perfume and optional so-called active agent. It can be a compound or a mixture of compounds, preferably a liquid medium, whose viscosity can be adjusted. In the medium, the perfume and / or optional active agent can, for example, be in full or partially solubilized form, in the form of an emulsion or in the form of a dispersion. The medium is, for example, a solvent or a carrier oil.

[0259] The amount by weight of the core formulation medium, in relation to the total weight of the core, can depend on the the perfume and / or active agent, the application field and the desired activity. For example, it can be between 0.1% and 99.9%, for example between 1% and 99%, for example between 1% and 10%, or between 10% and 20%, or between 20% and 30%, or between 30% and 40%, or between 40% and 50%, or between 50% and 60%, or between 60% and 70%, or between 70% and 80%, or between 80% and 90%, or between 90% and 99%.

[0260] Solvents or carrier oils that can be used in core formulations include:

[0261] - natural oils, preferably selected from triglyceride oils such as neem oil, sesame oil, rapeseed oil, soybean oil, hydrogenated soybean oil, sunflower oil, coconut oil, almond oil, castor oil, hydrogenated castor oil, linseed oil, palm oil, wheat germ oil, cottonseed oil, hydrogenated cottonseed oil, coconut-caprylate / caprate oil, olive oil, safflower oil, corn oil, apricot kernel oil, peanut oil, arnica oil, argan oil, avocado oil, babassu oil, baobab oil, black seed oil, blackberry seed oil, blackcurrant seed oil, blueberry seed oil, borage oil, calendula oil, camelina oil, camellia seed oil, cherry kernel oil, cocoa butter, evening primrose oil, grapefruit oil, grapeseed oil, hazelnut oil, hemp oil, jojoba oil, lemon seed oil, lime seed oil, kukui nut oil, macadamia oil, mango butter, meadowfoam oil, melon seed oil, moringa oil, orange seed oil, papaya seed oil, passion fruit seed oil, peach kernel oil, plum oil, pomegranate seed oil, poppy seed oil, pumpkin seed oil, red raspberry seed oil, rice bran oil, rosehip oil, sea buckthorn oil, strawberry seed oil, walnut oil, fish oils (e.g., sardine oil, mackerel oil, herring oil, cod liver oil, oyster oil; animal oils and liquefied animal fats, and their extracts, derivatives, mixtures or combinations,

[0262] - synthetic oils, e.g. oils based on synthetic analogues of extracts or derivatives of the natural oils mentioned above, or alkane oils such as isododecane and isohexadecane, ester oils, ether oils and artificial triglycerides,- saturated or unsaturated fatty acids, preferably selected from butyric acid, caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid, behenic acid, lignoceric acid, oleic acid, palmitoleic acid, myristoleic acid and erucic acid, and polyunsaturated fatty acids such as linoleic acid, y-linolenic acid, arachidonic acid, a-linolenic, eicosapentaenoic acid and docosahexaenoic acid,

[0263] - fatty acid esters, citrate esters and lactate esters, preferably selected from complex esters, 2-ethylhexyl lactate, triethyl citrate, ethyl oleate and isononyl isononanoate, butyl stearate, glyceryl monooleate, isopropyl myristate, ethyl stearate, ethyl stearate, ethyl ethyl stearate, ethyl ethyl hydroxy stearate, pentaerythrityl tetraisostearate, dodecyl oleate, Octylededecyl Myristate, Ethyl Oleate, Apricot Kernels Oil 4- Polyglyceryl Ester, Oleic Acid Polyglycerol Ester, Stearyl Octanoate,

[0264] - esters and polyesters such as dilinoleyl dimer dilinoleate, dipentaisononanoate dipentaerythrityl, decyl 9-octadecanoate or such as Cargill's Priolube™ commercial esters such as Priolube™ 1426, Priolube™ 1446, Priolube™1847, Priolube™ 1851, Priolube™ 1875, Priolube™ 1921, Priolube™ 1929, Priolube™ 1936, Priolube™2046, Priolube™2087, Priolube™2087, Priolube 2088, Priolube™2088, Priolube™2510, Priolube™2520, Priolube™2568, Priolube™ Priolube™3970, Priolube™3986, Priolube™3997,

[0265] - glycols and carbonates, preferably selected from propylene carbonate and dipropylene glycol, - alcohols, preferably selected from glycerol, 2-ethyl hexanol,

[0266] - ketones, preferably selected from 1 -phenylethanone (acetophenone), cyclohexanone and 3,5,5-trimethyl-2-cyclohexene-1-one (isophorone),

[0267] - linear or branched aliphatic hydrocarbons such as linear or branched C6-C16 alkanes, e.g. undecane, dodecane, tridecane, and isoparaffins such as isohexadecane, isododecane, and isodecane, linear or branched hydrocarbons containing more than 16 carbon atoms, kerosene oils, liquid petroleum jelly, polydecenes and hydrogenated polyisobutenes such as Parleam and squalane, mixtures of alkanes, e.g. C9-12 alkanes, C10-13 alkanes, C13-14 alkanes, C13-15 alkanes, C14-17 alkanes, C14-19 alkanes, C15-19 alkanes, C15-23 alkane, C18-21 alkane, C8- 9 alkane / cycloalkane, C9-10 alkane / cycloalkane, C9-11 alkane / cycloalkane, C9-16 alkane / cycloalkane, C10-12 alkane / cycloalkane, Alkane / cycloalkane in C11-14, alkane / cycloalkane in C11-15, alkane / cycloalkane in C12-13,

[0268] - acetates, preferably selected from ethyl acetate,

[0269] - amides, preferably selected from the N,N-dimethylamides of C8-C18 fatty acids, - abietic acid esters, preferably selected from the methyl esters of abietic resin acids,

[0270] - aromatic hydrocarbons, preferably selected from methylbenzene (toluene), dimethylbenzene (xylene), and high boiling point aromatic hydrocarbons (C9-C11 alkylbenzenes), and

[0271] - their mixtures or combinations.The quantity and nature of solvents or carrier oils are typically such that the shell is not solubilized, and preferably not or only slightly plasticized.

[0272] The core composition is typically a C1 composition as described in the process detailed below. The quantity and nature of solvents or carrier oils are typically such that the monomer(s) corresponding to the units of the shell, typically put in a C2 composition as described in the process detailed below, are not soluble or solubilized.

[0273] The amount of core formulation medium, especially solvent or carrier oil, is for example of from 5 to 95% by weight in relation to the total weight of the heart, for example of from 5% to 10% or 10% to 20%, or 20% to 30%, or 30% to 40%, or 40% to 50% or 50% to 60%, or from 60% to 70%, or from 70% to 80%, or from 80% to 90%, or from 90% to 95%.

[0274] In a particular embodiment, the core or core composition comprises a mixture of a perfume and a core formulation medium, in particular a solvent or carrier oil.

[0275] The median volume size of the microcapsules is preferably between 1 pm and 50 pm, preferably between 1 pm and 20 pm, e.g. between 1 pm and 5 pm or between 5 pm and 10 pm or between 5 pm and 10 pm, or between 10 pm and 15 pm, or between 15 pm and 20 pm, or between 20 pm and 30 pm, or between 30 pm and 40 pm, or between 40 pm and 50 pm.

[0276] The microcapsules generally have substantial biodegradability.

[0277] This is assessed, for example, according to OECD guidelines 301 or 302. They may be biodegradable according to one of OECD guidelines 301 A, 301 B, 301 C, 301 D, 301 E or 301 F or 302 C, e.g. greater than 10% or 20%, or 30% or 40% or 50% or 60% or 70% or 80%. The appropriate assessment can be chosen depending on the area of application.

[0278] In particular, they may have a biodegradability value defined in accordance with the OECD Guidelines for the Testing of Chemicals, following the method described in Test No. 301 F "Manometric Respirometry Test" (in particular the document in its version with a single correction of 26 July 2013, available at the following address: https: / / www.oecd.org / content / dam / oecd / fr / publications / reports / 1992 / 07 / test-no-301-ready-biodegradability_g1gh2913 / 9789264070356-frpdf), which classifies a substance as "readily biodegradable" if its biodegradability reaches at least 60% within 10 days of the 28-day test.For example, microcapsules may exhibit substantial biodegradability according to OECD Guideline 301 F, including 301 F, at 28 days, greater than 10% or 20%, or 30% or 40% or 50% or 60% or 70%, or 80%.

[0279] Manufacture of the microcapsules to be included in home-care compositions, for example laundry compositions, of the invention.

[0280] The microcapsules that are to be included in laundry compositions of the invention, can be prepared by the following process:

[0281] A) the preparation of an emulsion comprising droplets comprising a hydrophobic phase comprising a monomer composition comprising at least monomer A and a polymerization initiator in a continuous aqueous phase

[0282] (B) polymerization by activation of the polymerization initiator, in order to obtain microcapsules comprising the polymer, and

[0283] C) optionally washing and or concentration of microcapsules.

[0284] The droplets comprise a hydrophobic phase comprising a composition of monomers comprising at least the monomer A and the initiator in which one or more droplets of an immiscible core phase in the hydrophobic phase are dispersed, or one or more solid particles. . The immiscible core phase or solid particles typically include the perfume and optionally a so-called active compound as described above. Depending on the embodiment, the perfume and the optional so-called active compound is in liquid form, or in solubilized or dispersed form in a liquid or viscous core formulation medium. According to another embodiment, the perfume and the optional so-called active compound is in the form of solid particles, dispersed in the hydrophobic phase.

[0285] In the process, the composition of monomers comprises at least one monomer A as described above. Generally, the monomer A content, expressed as a percentage by weight relative to the total weight of the monomer composition, corresponds to the A unit content in the polymer, described above. For clarity, the weight of the C monomer composition includes the weight of the initiator.

[0286] In one aspect of the process, the composition of monomers further comprises at least one monomer B as described above. In this case, the content of monomer B expressed as a percentage by weight relative to the total weight of the monomer composition generallycorresponds to the content of B units in the polymer, described above.

[0287] In another aspect of the process, the monomer composition further comprises at least one monomer C as described above. In this case, the C-monomer content expressed as a percentage by weight relative to the total weight of the monomer composition is generally the C-unit content in the polymer described above.

[0288] In an aspect of the process, the polymerization initiator is a photoinitiator. In this case, the polymerization is usually activated by UV. The photoinitiators that can be used are known in the technique and are described, for example in "Photoinitiators in the cross-linking of coatings", G. Li Bassi, Double Liaison - Chimie des Peintures, n°361, November 1985, p.34-41; "Industrial applications of photoinduced polymerization", Henri Strub, L'Actualite Chimie, February 2000, p.5-13; and "Photopolymers: theoretical considerations and setting reaction", Marc, J.M.

[0289] Abadie, Double Liaison - Chimie des Peintures, n°435-436, 1992, p.28-34.

[0290] These photoinitiators include:

[0291] a-hydroxyketones, such as 2-hydroxy-2-methyl-1-phenyl-1 -propanone, initially marketed for example under the names DAROCUR® 1173 and 4265, IRGACURE® 184, 2959, and 500 by BASF, and ADDITOL® CPK by CYTEC;

[0292] a-aminoketones, in particular 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)-butanone-1 , initially marketed, for example, under the names IRGACURE® 907 and 369 by BASF; aromatic ketones marketed, for example, under the name ESACURE® TZT by LAMBERTI; or thioxanthones initially marketed for example under the name ESACURE® ITX by LAMBERTI, and quinones. These aromatic ketones most often require the presence of a hydrogen-donating compound such as tertiary amines and in particular alkanolamines. One example is the ESACURE® EDB tertiary amine, initially marketed by the company LAMBERTI.

[0293] a-dicarbonyl derivatives, the most common representative of which is benzyldimethyl cetal, initially marketed under the name IRGACURE® 651 by BASF and by the company LAMBERTI under the name ESACURE® KB1, and

[0294] acylphosphine oxides, such as bis-acylphosphine oxides (BAPO) initially marketed for example under the names IRGACURE® 819, 1700, and 1800, DAROCUR® 4265, LUCIRIN®TPO, and LUCIRIN® TPO-L by the company BASF.

[0295] Photoinitiators also include aromatic ketones such as benzophenone, phenylglyoxylates, such as phenylglyoxylic acid methyl ester, oxime esters, such as benzoate, [1-(4-phenylsulfanylbenzoyl)heptylideneamino]benzoate, sulfonium salts, iodonium salts and oxime sulfonates.In the process, the concentration of initiator, in particular photoinitiator, is generally 0.5% to 5% by weight, often 1% to 4% by weight in relation to the total weight of the C2 monomer composition.

[0296] In the process, the droplets of the emulsion generally have a median volume size of between 1 pm and 100 pm, preferably between 1 and 50 pm.

[0297] According to a first embodiment of the process of preparing microcapsules being microcapsules, a process is implemented comprising the following steps:

[0298] a) the addition under stirring of a core composition C1, in a composition of monomers C2, the compositions C1 and C2 not being miscible into each other,

[0299] the viscosity of the C2 composition being between 30 mPa.s and

[0300] 100,000 mPa.s at 25°C and 10 s shear1, e.g. between 30 and 150 mPa.s or between 150 mPa.S and 500 mPa.s, and preferably higher than the viscosity of the C1 composition, by which we obtain an emulsion (E1) comprising drops of composition C1 dispersed in composition C2 or a dispersion (D1) comprising particles of composition C1 dispersed in composition C2.

[0301] b) the stirred addition of the emulsion (E1) or of dispersion (D1) in a C3 composition, the C2 and C3 compositions not being miscible into each other,

[0302] the viscosity of the C3 composition being between 500 mPa.s and 100000 mPa.s at 25°C, and preferably being higher than the viscosity of the emulsion (E1),

[0303] by which a double emulsion (E2) is obtained comprising drops dispersed in the composition C3; c) the application of emulsion shear (E2),

[0304] by which a double emulsion (E3) is obtained comprising drops of controlled size dispersed in the composition C3; and

[0305] d) polymerization of the C2 composition, which results in microcapsules dispersed in the C3 composition.

[0306] The above-mentioned process typically consists of making a double emulsion composed of droplets containing at least one core composition, enveloped in a polymerizable liquid phase. These double drops are then made monodisperse in size before being transformed by crosslinking or polymerization into capsules. Preparation can involve 4 steps described below in detail.

[0307] Step (a) of the process consists in preparing a first emulsion (E1) or dispersion (D1).

[0308] The first emulsion consists of a dispersion of droplets or particles of the composition C1 into acomposition of C2 monomers immiscible with C1, created, by example, by the drip addition or by one or more additions of C1 into C2 under agitation.

[0309] During step (a), a C1 composition is mixed, e.g. added to a C2 monomer composition, this step being performed under stirring, which means that the C2 composition is stirred, typically mechanically, while the C1 composition is added, in order to emulsify or disperse the mixture of C1 and C2 compositions.

[0310] The addition of composition C1 into composition C2 can be done drop by drop.

[0311] During step (a), the C1 composition is at a temperature between 0°C and 100°C, preferably between 10°C and 80°C, and preferably between 15°C and 60°C. During step (a), the C2 composition is at a temperature between 0°C and 100°C, preferably between 10°C and 80°C, and preferably between 15°C and 60°C.

[0312] Under the addition conditions of step (a), compositions C1 and C2 are not miscible into each other, which means that the quantity (by weight) of composition C1 capable of being solubilized in composition C2 is less than or equal to 20%, e.g. less than or equal to 10%, e.g. less than or equal to 5%, preferably less than 1%, and preferably less than 0.5%, in relation to the total weight of composition C2, and that the quantity (by weight) of the composition C2 capable of being solubilized in composition C1 is less than or equal to 5%, preferably less than 1%, and preferably less than 0.5%, in relation to the total weight of composition C1.

[0313] Thus, when the C1 composition comes into contact with the C2 composition under agitation, the latter is dispersed in the form of drops, known as simple drops or in the form of particles.

[0314] The immiscibility between the C1 and C2 compositions also avoids the migration of the asset from the C1 composition to the C2 composition.

[0315] Composition C2 is stirred to form an emulsion or dispersion comprising drops or particles of composition C1 dispersed in composition C2. This emulsion is also called a "simple emulsion" or dispersion C1-in-C2 emulsion. To implement step (a), any type of agitator commonly used to form emulsions can be used, such as a mechanical paddle agitator, a static foam concentrate, an ultrasonic homogenizer, a membrane homogenizer, a high-pressure homogenizer, a colloidal mill, a high-shear disperser, or a high-speed homogenizer. The C2 composition is intended to form the future envelope of the microcapsules.The volume fraction of C1 in C2 can vary from 0.1 to 0.6 in order to control the shell thickness of the capsules obtained at the end of the process.

[0316] Depending on one embodiment, the ratio between the composition volume C1 and the composition volume C2 varies between 1:10 and 10:1. Preferably, this ratio is between 1:3 and 5:1, preferably between 1:3 and 3:1.

[0317] Preferably, the viscosity of the C2 composition at 25°C and a shear of 10 s_1is between 100 mPa.s and 50000 mPa.s, preferably between 200 mPa.s and 25000 mPa.s, and for example between 300 mPa.s and 15000 mPa.s.

[0318] Preferably, the viscosity of the C2 composition is higher than the viscosity of the C1 composition.

[0319] Viscosity is measured using a Haake Rheostress rheometer™ 600 equipped with a 60 mm diameter cone with a 2 degree angle, and a temperature control cell set at 25°C. The viscosity value is read for a shear velocity equal to 10 s-1.

[0320] According to this embodiment, the destabilization kinetics of the emulsion drops (E1) or particles of dispersion (D1) are significantly slow, which allows the microcapsule shell to be polymerized during step d) before the emulsion destabilizes. Polymerization, once completed, then provides thermodynamic stabilization. Thus, the relatively high viscosity of the C2 composition ensures the stability of the emulsion (E1) or dispersion (D1) obtained at the end of step a).

[0321] Preferably, the interfacial tension between the C1 and C2 compositions is low. Typically, these interfacial tensions vary between 0 mN / m and 50 mN / m, preferably between 0 mN / m and 20 mN / m.

[0322] The low interfacial tension between the C1 and C2 compositions also advantageously ensures the stability of the emulsion (E1) or dispersion (D1) obtained at the end of step a).

[0323] Step (b) of the process consists in preparing a second emulsion (E2).

[0324] The second emulsion consists of a droplet dispersion of the first emulsion or dispersion into an immiscible C3 composition with C2, created by mixing, for example by dripping addition or by one or more additions of the emulsion (E1) or dispersion (D1) into C3 under agitation.During step b), the emulsion (E1) is at a temperature between 15°C and 90°C, for example between 20°C and 60°C. During step (b), composition C3 is at a temperature between 15°C and 90°C, for example between 20°C and 60°C.

[0325] Under the addition conditions of step (b), compositions C2 and C3 are not miscible into each other, which means that the quantity (by weight) of composition C2 capable of solubilization in composition C3 is less than or equal to 5%, preferably less than 1%, and preferably less than 0.5%, in relation to the total weight of composition C3, and that the quantity (by weight) of the C3 composition capable of being solubilized in the C2 composition is less than or equal to 5%, preferably less than 1%, and preferably less than 0.5%, relative to the total weight of C2 composition.

[0326] Thus, when the emulsion (E1) or dispersion (D1) comes into contact with the C3 composition under agitation, the latter is dispersed in the form of drops, known as double drops, the dispersion of these emulsion drops (E1) or dispersion (D1) in the continuous phase C3 being called the emulsion (E2).

[0327] Typically, a double drop formed during step b) corresponds to a single drop or particle of composition C1 as described above, surrounded by an envelope of composition C2 that totally encapsulates said single drop or particle.

[0328] The double drop formed during step (b) may also comprise at least two single drops or particles of composition C1, said single drops or particles being surrounded by an envelope of composition C2 which completely encapsulates said single droplets or particles.

[0329] Thus, said double drops comprise a core consisting of one or more single drops or particles of composition C1, and a layer of composition C2 surrounding said core.

[0330] The resulting emulsion (E2) is usually a double polydisperse emulsion (C1-in-C2-in-C3 emulsion or C1 / C2 / C3 emulsion), which means that the double drops do not have a clear size distribution in the emulsion (E2).

[0331] The immiscibility between the C2 and C3 compositions avoids mixing between the C2 composition layer and the C3 composition and thus ensures the stability of the emulsion (E2). The immiscibility between the C2 and C3 compositions also prevents any water-soluble substance included in the C1 composition from migrating from the heart of the drops to the C3composition.

[0332] To implement step (b), any type of agitator commonly used to form emulsions can be used, such as a mechanical paddle agitator, a static foam concentrate, an ultrasonic homogenizer, a membrane homogenizer, a high-pressure homogenizer, a colloidal mill, a high-shear disperser, or a high-speed homogenizer.

[0333] According to one embodiment, the viscosity of the C3 composition at 25°C is higher than the viscosity of the emulsion (E1) at25°C.

[0334] The viscosity of the C3 composition at 25°C is between 500 mPa.s and 100,000 mPa.s.

[0335] Preferably, the viscosity of the C3 composition at 25°C is between 3000 mPa.s and 100000 mPa.s, preferably between 5000 mPa.s and 80000 mPa.s, e.g. between 7000 mPa.s and 70000 mPa.s.

[0336] According to this embodiment, given the very high viscosity of the continuous phase formed by the C3 composition, the rate of destabilization of the double drops of the emulsion (E2) is significantly slow, which then provides a kinetic stabilization of the emulsions (E2) and then (E3) until the polymerization of the capsule shell is completed. The capsules, once cured, are thermodynamically stable.

[0337] Thus, the very high viscosity of the C3 composition ensures the stability of the emulsion (E2) obtained at the end of step b).

[0338] A low surface tension between C3 and the first emulsion as well as a high viscosity of the system advantageously ensure the kinetic stability of the double emulsion (E2), preventing it from becoming out of phase during the manufacturing process.

[0339] Preferably, the interfacial tension between compositions C2 and C3 is low. The low interfacial tension between the C2 and C3 compositions also advantageously ensures the stability of the emulsion (E2) obtained at the end of step b).

[0340] The volume fraction of the first emulsion in C3 can be varied from 0.05 to 0.5 in order to improve the production yield and to vary the average diameter of the capsules. At the end of this step, the size distribution of the second emulsion is relatively wide.Depending on the embodiment, the ratio between the emulsion volume (E1) or of dispersion volume (D1) and the composition volume C3 varies between 1:20 and 20:1, for example between 1:10 and 10:1. Preferably, this ratio is between 1:9 and 3:1, preferably between 1:9 and 1:1.

[0341] According to one embodiment, the C3 composition also comprises at least one branched polymer, preferably with a molecular weight greater than 5000 g.mol'1, and / or at least one polymer with a molecular weight greater than 5,000 g.mol'1, and / or solid particles such as silicates.

[0342] According to one embodiment, the C3 composition includes at least as a manufacturing intermediate a polymer with a molecular weight greater than 5000 g.mol'1, preferably between 10000 g.mol'1and 500000 g.mol'1, e.g. between 50000 g.mol'1and 300000 g.mol'1.

[0343] As a polymer with a molecular weight greater than 5,000 g.mol'1The following compounds can be used alone or mixed with each other:

[0344] cellulose derivatives, such as cellulose ethers: methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, methylhydroxyethyl cellulose, ethyl hydroxyethyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose or methylhydroxypropyl cellulose;

[0345] polyacrylates (also known as carbomers), such as polyacrylic acid (PAA), polymethacrylic acid (PMAA), poly(hydroxyethyl methacrylate) (pHEMA), poly(N-2-hydroxypropyl methacrylate) (pHPMA);

[0346] polyacrylamides such as poly(N-isopropylacrylamide) (PNIPAM);

[0347] polyvinylpyrrolidone (PVP) and its derivatives;

[0348] polyvinyl alcohol (PVA) and its derivatives;

[0349] poly(ethylene glycol), polypropylene glycol) and their derivatives, such as poly(ethylene glycol) acrylate / methacrylate, poly(ethylene glycol) diacrylate / dimethacrylate, polypropylene carbonate; polysaccharides such as carrageenans, locust bean gums or tara gums, dextran, xanthan gums, chitosan, agarose, hyaluronic acids, gellan gum, guar gum, gum arabic, tragacanth gum, diutan gum, oat gum, karaya gum, ghatti gum, curdlan gum, pectin, konjac gum, starch; protein derivatives such as gelatin, collagen, fibrin, polylysin, albumin, casein;

[0350] silicone derivatives such as polydimethylsiloxane (also called dimethicone), alkyl silicones, aryl silicones, alkyl aryl silicones, polyethylene glycol dimethicones, polypropylene glycol dimethicone;

[0351] waxes, such as diester waxes (alkanediol diesters, hydroxylacid diesters), tri ester waxes(triacylglycerols, 1,2-alkane-diol, w-hydroxy acid and fatty acid triesters, hydroxymalonic acid, fatty acid and alcohol esters, hydroxylacid, fatty acid and fatty alcohol triesters, fatty acid, hydroxylacid and diol triesters) and polyester waxes (fatty acid polyesters). Examples of fatty acid esters that can be used as waxes are cetyl palmitate, cetyl octanoate, cetyl laurate, cetyl lactate, cetyl isononanoate, cetyl stearate, stearyl stearate, myristyle stearate, cetyl myristate, isocetyl stearate, glyceryl trimyristate, glyceryl tripalmitate, glyceryl monostearate, or glyceryl cetyl palmitate;

[0352] fatty acids that can be used as waxes such as cerotic acid, palmitic acid, stearic acid, dihydroxystearic acid, behenic acid, lignoceric acid, arachidic acid, myristic acid, lauric acid, tridecyclic acid, pentadecyclic acid, margaric acid, nonadecyclic acid, heneicosylic acid, tricosylic acid, pentacosylic acid, heptacosylic acid, montanic acid or nonacosylic acid; fatty acid salts, including aluminum salts of fatty acids such as aluminum stearate, hydroxyl aluminum bis(2-ethyl hexanoate);

[0353] isomerized jojoba oil;

[0354] hydrogenated sunflower oil;

[0355] hydrogenated coconut oil;

[0356] hydrogenated lanolin oil;

[0357] castor oil and its derivatives, including modified hydrogenated castor oil or compounds obtained by esterification of castor oil with fatty alcohols;

[0358] polyurethanes and their derivatives;

[0359] styrenic polymers such as styrene butadiene; and

[0360] polyolefins such as polyisobutene.

[0361] According to one embodiment, composition C3 includes, as a manufacturing intermediate, at least one polymer with a molecular weight greater than 5000 g.mol’1and solid particles. Any mixture of the compounds mentioned above can be used.

[0362] Step (c) of the process consists in refining the droplet size of the second emulsion (E2). This can be a fragmentation stage.

[0363] This step may consist of applying a homogeneous controlled shear to the emulsion (E2), said applied shear speed being between 10 s_1and 100,000 s'1.

[0364] According to one embodiment, the polydisperse double drops obtained in step (b) are subjected to a refining in size consisting of subjecting them to a shear capable of fragmenting them into new double drops of homogeneous and controlled diameters.According to one embodiment, in step (c), the second emulsion (E2), obtained at the end of step (b), consisting of polydisperse double drops dispersed in a continuous phase, is subjected to shearing in a mixer, which applies a homogeneous controlled shear.

[0365] Thus, according to this embodiment, step (c) consists in applying a homogeneous controlled shear to the emulsion (E2), said applied shear speed being between 1000 s-1and 100000 s-1. According to this embodiment, in a mixer, the shear rate is said to be controlled and homogeneous, regardless of the duration, when it rises to a similar maximum value for all parts of the emulsion, at a given moment which may vary from one point of the emulsion to another. The exact configuration of the mixer is not essential, since the entire emulsion has been subjected to the same maximum shear when exiting this device. Suitable mixers for performing step (c) are described in US5938581.

[0366] In this way, during step (c), the second emulsion is introduced into the mixer and is then subjected to shearing which results in the formation of the third emulsion. The third emulsion (E3) is chemically identical to the second emulsion (E2) but consists of monodisperse double drops while the emulsion (E2) consists of polydisperse double droplets. The third emulsion (E3) typically consists of a dispersion of double drops comprising a core consisting of one or more drops of composition C1 and a layer of composition C2 encapsulating said core, said double drops being dispersed in composition C3.

[0367] The difference between the second emulsion and the third emulsion is the variance in size of the double droplets: the drops of the second emulsion are polydisperse in size while the drops of the third emulsion are monodisperse, thanks to the fragmentation mechanism described above.

[0368] Preferably, according to this embodiment, the second emulsion is continuously introduced into the mixer, which means that the amount of double emulsion (E2) introduced at the inlet of the mixer is the same as the amount of third emulsion (E3) at the exit of the mixer.

[0369] Since the drop size of the emulsion (E3) essentially corresponds to the size of the solid microcapsules after polymerization, it is possible to adjust the microcapsule size and the shell thickness by adjusting the shear rate during step (c), with a strong correlation between the decrease in drop size and the increase in shear rate. This allows the resulting dimensions of the microcapsules to be adjusted by varying the shear rate applied during step (c).According to another embodiment, step (c) consists of applying to the emulsion (E2) a shear speed of less than 1000 s-1. This embodiment may be preferred for a viscosity of the C3 composition greater than 200 mPa.s, preferably at 2000 mPa.s, at 25°C and a shear of 10 s-1.

[0370] According to this embodiment, the fragmentation step (c) can be carried out using any type of mixer usually used to form emulsions with a shear rate of less than 1,000 s-1. In particular, it is possible to operate under conditions such as those described in patent application FR1661787.

[0371] The geometric characteristics of the double drops formed at the end of this step will dictate those of the future capsules.

[0372] According to this embodiment, in step (c), the emulsion (E2), consisting of polydisperse drops dispersed in a continuous phase, is subjected to shear, e.g. in a mixer, at a low shear rate, i.e. less than 1 000 s'1.

[0373] According to this embodiment, the shear speed applied in step (c) is, for example, between 10 S’1and 1,000 s-1.

[0374] Preferably, the shear rate applied in step (c) is strictly less than 1,000 s-1.

[0375] According to this embodiment, emulsion drops (E2) can only be efficiently fragmented into fine, monodisperse emulsion drops (E3) if a high shear stress is applied to them.

[0376] Shear stress s applied to a drop of emulsion (E2) is defined as the tangential force per unit area of the drop resulting from the macroscopic shear applied to the emulsion during its agitation during step (d).

[0377] Shear stress s (expressed in Pa), the viscosity of the C3 composition h (expressed in Pa s) and the shear velocity g (expressed in s_1) applied to the emulsion (E2) during its stirring during step d) are related by the following equation:

[0378] s = hg

[0379] Thus, according to this embodiment, the high viscosity of the C3 composition allows a very high shear stress to be applied to the emulsion drops (E2) in the mixer, even if the shear rate is low and the shear inhomogeneous.

[0380] To implement step (c) in this way, any type of agitator commonly used to form emulsions can be used, such as a mechanical paddle stirrer, a static foam concentrate, an ultrasonichomogenizer, a diaphragm homogenizer, a high-pressure homogenizer, a colloidal mill, a high-shear disperser or a high-speed homogenizer.

[0381] A preferred embodiment is to use a simple foam concentrate such as a mechanical paddle stirrer or a static foam concentrate to implement step (c). This is because this is possible because this embodiment does not require a controlled shear or a shear greater than 1,000 s-1.

[0382] Step (d) of the process consists of the polymerization and thus the formation of the envelope of the microcapsules.

[0383] This step makes it possible both to achieve the expected performance of the capsules in terms of retention and to ensure their thermodynamic stability, by definitively preventing any destabilization mechanism such as coalescence or ripening.

[0384] According to one embodiment, where the C2 composition includes a photoinitiator, step (d) is a photopolymerisation step consisting of exposing the emulsion (E3) to a light source capable of initiating the photopolymerisation of the C2 composition, in particular to a UV light source emitting preferably in the wavelength range between 100 nm and 450 nm, and this in particular for a duration of less than 15 minutes.

[0385] Step (d) is preferably implemented in such a way as to obtain a conversion rate, by weight, of the monomers greater than 90%, preferably 95%, e.g. greater than 99%. The operating conditions can be adapted for this purpose, in particular the quantities and / or types of photoinitiator and / or the wavelengths used.

[0386] According to this embodiment, step d) consists of subjecting the emulsion (E3) to a photopolymerization, which will allow the photopolymerization of the C2 composition. This step will make it possible to obtain microcapsules encapsulating the water-soluble substance as defined above.

[0387] According to one embodiment, step d) consists of exposing the emulsion (E3) to a light source capable of initiating the photopolymerization of the C2 composition.

[0388] Preferably, the light source is a UV light source.According to one embodiment, the UV light source emits in the wavelength range between 100 nm and 450 nm.

[0389] According to one embodiment, the emulsion (E3) is exposed to a light source for less than 15 minutes, and preferably for 5 to 10 minutes.

[0390] During step (d), the envelope of the above-mentioned double droplets, consisting of photocrosslinkable C2 composition, is cross-linked and thus converted into a viscoelastic polymeric shell, encapsulating and protecting the water-soluble substance from release in the absence of mechanical triggering.

[0391] According to another embodiment, when the C2 composition does not include a photoinitiator, step (d) is a polymerization step, the duration of this step (d) of polymerization being preferably between 2 hours and 100 hours and / or this step (d) is carried out at a temperature between 20°C and 80°C.

[0392] According to this embodiment, polymerization is initiated, for example, by exposure to heat (thermal initiation), or by simply bringing monomers, polymers and cross-linking agents into contact with each other, or with a catalyst. The curing time is then generally more than several hours.

[0393] Preferably, step (d) of polymerization of the C2 composition is carried out for a period of between 2 hours and 100 hours, at a temperature between 20°C and 80°C.

[0394] At the end of step d), we obtain microcapsules dispersed in the composition C3.

[0395] The process may include a step C) of washing and / or concentrating the microparticles. This step typically follows step d). Thus, according to one embodiment, step (d) is typically followed by a washing step in which the manufacturing intermediates included in C3 are removed.

[0396] Centrifugation and washing with water can be used or another organic compound as a solvent to purify the microparticles and remove impurities, such as residual monomers. Examples of organic compounds include solvents such as methanol, ethanol, propanol, isopropanol, acetone, MEK, ethyl acetate, and THE These steps are known to those skilled in the art.

[0397] Washing can be carried out in several stages to control the purity of the microparticles, for example, in a manner adapted to the application of the microparticles, particularly from a regulatory standpoint. In particular, several washing and / or purification steps can be carried out using an aqueous and / or organic solvent, for example by resuspension and decantation, bysuccessive cycles of dilution-resuspension-separation, by filtration (for example under vacuum, on membrane, microfiltration / ultrafiltration, or tangential filtration), by centrifugation (batch or continuous), by gravity or assisted sedimentation, by column washing (fixed bed or fluidized bed), by co-current or counter-current washing, by dialysis, by liquid-liquid extraction, and / or by washing assisted by mechanical agitation, ultrasound, or any combination of these techniques. In this way, it is possible to obtain a dispersion of the microcapsules in an aqueous phase or organic, typically dispersed in such a phase. This can constitute a concentrated composition.

[0398] Depending on the embodiment, step (d) and / or the washing stage is followed by a concentration and / or drying stage, so as to obtain a concentrated composition, if necessary in powder form.

[0399] Such steps are known to those skilled in the art. Examples include fixed-bed drying, tray / oven drying, vacuum drying, freeze-drying, spray drying, fluidized bed drying, flash / pneumatic drying, drum or belt drying, thin-film drying (drop or wipe film), microwave or infrared drying, and processes using supercritical CO2.

[0400] In one embodiment, washing is carried out with ethanol and drying is achieved by spraying a dispersion in water, ethanol, or a mixture. This embodiment allows for high purity, particularly with regard to the quantity of residual monomers such as monomer A, as well as high distensibility in downstream formulations.

[0401] According to one embodiment, the solid microcapsules obtained at the end of step (d) are surfactant-free.

[0402] The microparticles that are obtained or obtainable by the process described above can be used for the aspects of the invention.

[0403] The microcapsules described, or manufactured as, above, are then included in a home care, for example a laundry compositions described below.

[0404] Definitions

[0405] Throughout the description and claims of this specification, the following terms are used and are defined below:

[0406] “alkyl”, “alkane”, “alkene” and “alkylene” include both straight and branched chain alkyl and alkylene groups respectively unless otherwise stated.“Ci-io“ or “C1-C10” means a group having from 1 to 10 carbons atoms therein, for example having 1,2, 3, 4, 5 etc up to 10 carbon atoms.

[0407] “Comprising” or “comprises” means including the component(s) specified but not to the exclusion of the presence of other components. The term “consisting essentially of” or “consists essentially of” means including the components specified but excluding other components except for components added for a purpose other than achieving the technical effect of the invention. The term “consisting of” or “consists of” means including the components specified but excluding other components.

[0408] “Detergent composition” in the context of this invention means cleaning compositions capable of laundering fabrics, generally containing fabric care ingredients with detersive function, preferably detersive surfactants, and preferably at least one further fabric care ingredient.

[0409] “Detersive surfactant” means a surfactant which provides a detersive (i.e. cleaning) effect to a fabric treated as part of a domestic treatment e.g. laundering process.

[0410] “Laundering” in the context of treating fabrics as defined herein with compositions of the invention, and includes wetting, applying to the substrate e.g. as an aqueous liquid or foam, cleaning, immersing in a wash liquor comprising composition of the invention diluted with water, soaking, pretreatment, spot treatment, washing, scrubbing, conditioning, lubricating, care, softening, easy-ironing, anti-static, anti-wrinkle, fragrancing, de-pilling, rejuvenation including colour rejuvenation, santisation, bleaching, colour treatments, soil removal, stain removal, and any combination thereof. Treatment may be manual or involve automatic machines such as fabric washing machines.

[0411] "Home Care Substrate” is any suitable substrate of the home. Substrates of the home include but are not limited to inanimate substrates such as a fabric as defined herein or a household surface, and dishes also defined herein. “Fabric” includes clothing, linens and other household textiles, such as upholstery, curtains, blinds etc. In the context of fabrics, the term “linen” is used to describe certain types of laundry items including bed sheets and bed covers, pillow cases, towels, tablecloths, table napkins, uniforms and the like, but also washable household items such as curtains and blinds, washable upholstery items such as cushion covers and the like. The term “household textiles” can include woven fabrics, non-woven fabrics, and knitted fabrics and fabrics can include natural or synthetic fibres such as silk fibres, linen fibres, cotton fibres, polyester fibres, polyamide fibres such as nylon, rayon, acrylic fibres, acetate fibres, and blends thereof including cotton and polyester blends, fabrics which are elastic and / or containelastane, and also viscose, modal and lyocell. “Hard surface” includes surfaces of dishes and other household surfaces. “Dishes” is meant generically and encompasses essentially any items which may be found in a dishwashing (manual or automatic machine) load, including crockery, chinaware, glassware, plasticware, siliconeware, silverware, hollowware and cutlery and any of these may comprise a hard surface; and “household surface” means any surface found in and around houses as in kitchens, bathrooms, e.g., floors, walls, tiles, windows, cupboards, sinks, showers, shower plastified curtains, wash basins, WCs, fixtures and fittings, and furniture. Hard surfaces may be made of different materials like ceramic, vinyl, no-wax vinyl, linoleum, melamine, glass, Inox®, Formica®, vitroceramic, any plastics, plastified wood, metal or any painted or varnished or sealed surface and the like; as well as household appliances including, but not limited to refrigerators, freezers, washing machines, automatic dryers, ovens, microwave ovens, dishwashers and so on.

[0412] “home care composition” Home care compositions are typically suitable for: (a) the care of finished textiles, cleaning of finished textiles, sanitization of finished textiles, disinfection of finished textiles, detergents, stain removers, softeners, fabric enhancers, stain removal or finished textiles treatments, pre and post wash treatments, washing machine cleaning and maintenance, with finished textiles intended to include garments and items made of cloth; (b) the care of dishes, glasses, crockery, cooking pots, pans, utensils, cutlery and the like in automatic, in-machine washing, including detergents, preparatory post treatment and machine cleaning and maintenance products for both the dishwasher, the utilized water and its contents; or (c) manual hand dish washing detergents; and means any type of treatment composition for home care substrates and may include, but are not limited to, liquid cleaning and disinfecting agents laundry cleaning compositions, fabric softening compositions, fabric enhancing compositions, fabric freshening compositions, laundry pre-treatment or pre-washing compositions, laundry pretreating compositions, laundry additives (e.g., rinse additives, wash additives, etc.), post-rinse fabric treatment compositions, dryer compositions, dry cleaning compositions, ironing aid, dish washing compositions, as well as cleaning auxiliaries such as bleach additives rinse aid formulations, hard surface cleaning compositions including hard surface cleaners for kitchens and bathrooms and other suitable compositions that may be apparent to one skilled in the art in view of the teachings herein. All of such products which are applicable may be in standard, concentrated or even highly concentrated form even to the extent that such products may in certain aspect be non-aqueous.

[0413] “Laundry composition” means compositions for the laundering of fabrics and includes liquid fabric cleaning and fabric disinfecting agents, laundry cleaning compositions, fabric softeningcompositions, fabric enhancing compositions, fabric freshening compositions, laundry pretreatment or pre-washing compositions, laundry pretreating compositions, laundry additives (e.g., rinse additives, wash additives, etc.), post-rinse fabric treatment compositions, dryer compositions, dry cleaning compositions, ironing aids, as well as laundry auxiliaries such as bleach additives, microbial control compositions. All of such products which are applicable may be in standard, concentrated or even highly concentrated form even to the extent that such products may in certain aspect be non-aqueous.

[0414] “Laundry detergent” denotes formulated compositions intended for and capable of wetting and cleaning domestic fabric (often referred to as “laundry”). Examples of liquid laundry detergents include heavy-duty liquid laundry detergents for use in the wash cycle of automatic washing machines, as well as liquid fine wash and liquid colour care detergents such as those suitable for washing delicate garments (e.g. those made of silk or wool) either by hand or in the wash cycle of automatic washing machines. The composition may be a handwash detergents which involve the consumer using their hands to wash laundry substrates. Fields of use principally involve laundry use (i.e. the hand washing of clothes). Handwash detergents involve intimate contact of the detergent liquor with the hands during the washing process. Laundry detergent composition is particularly preferred.

[0415] “Liquid” in the context of this invention denotes that a continuous phase or predominant part of the composition is liquid and that the composition is flowable at 15°C and above. Accordingly, the term “liquid” may encompass emulsions, suspensions, and compositions having flowable yet stiffer consistency, known as gels or pastes.

[0416] “Solid” in the context of a detergent composition refers to the ability of an article to substantially retain its shape (i e., without any visible change in its shape) at 20°C and under the atmospheric pressure, when it is not confined and when no external force is applied thereto.

[0417] "Substantially free of” or "substantially free from" refers to either the complete absence of an ingredient or a minimal amount thereof merely as impurity or unintended byproduct of another ingredient. A composition that is "substantially free" of / from a component means that the composition comprises less than 0.5%, 0.25%, 0.1%, 0.05%, or 0.01%, or even 0%, by weight of the composition, of the component.“polymer” refers to a molecule composed of repeating units typically connected by covalent chemical bonds. The term “polymer” is also meant to include the terms copolymer and oligomers, polymers with 2 or more type of repeat units.

[0418] “Unit dose” means an amount of composition suitable to treat one load of laundry, such as, for example, from about 0.05 g to about 100 g, or from 10 g to about 60 g, or from about 20 g to about 40 g. A unit dose product may be in the form of a polymeric film package containing the composition, the package may be referred to as a capsule or pouch. Suitable films are available from MonoSol, LLC (Indiana, USA).

[0419] “Water-soluble” means the article (film or package) dissolves in water at 20° C.

[0420] Unless otherwise noted, all component or composition levels are in reference to the active portion of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources of such components or compositions.

[0421] Dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. Accordingly except in the examples and comparative experiments, or where otherwise explicitly indicated, all numbers are to be understood as modified by the word “about”. For example, a value disclosed as "50 microns’ is intended to mean "about 50 microns." Unless otherwise noted, all component or composition levels are in reference to the active portion of that component or composition, and are exclusive of impurities, for example, residual solvents or by-products, which may be present in commercially available sources of such components or compositions.

[0422] All amounts are by weight of the final composition, unless otherwise specified. It should be noted that in specifying any ranges of values, any particular upper value can be associated with any particular lower value. Unless specified otherwise, amounts as used herein are expressed in percentage by weight based on the total weight of the composition and is abbreviated as “wt%” or “weight %”.

[0423] All conditions herein are at 20° C. and under the atmospheric pressure, unless otherwise specifically stated.Numerical ranges expressed in the format "from x to y" are understood to include x and y. When for a specific feature multiple preferred ranges are described in the format "from x to y", it is understood that all ranges combining the different endpoints are also contemplated. In specifying any range of values or amounts, any particular upper value or amount can be associated with any particular lower value or amount.

[0424] "Microcapsules" means, in particular, microparticles having at least one core having a first non-gaseous chemical composition and a polymeric shell having a second chemical composition, different from the first. The shell forms an envelope around at least one core.

[0425] Slurry / solvent / carrier

[0426] The microcapsules may be added to the composition in a slurry or solvent or carrier. When describing the microcapsule in this specification, it is means the microcapsule which is a shell and core (which includes perfume) i.e., without any such solvent / slurry I carrier.

[0427] The solvent I slurry I carrier suitably comprises at least 15%, preferably at least 30%, preferably at least 40%, preferably at least 50%wt, more preferably 60%wt, or even at least 80%wt, still more preferably at least 90% or most preferably 95% microparticles, by weight in relation to the total weight of the solvent I slurry I carrier.

[0428] Levels

[0429] The home care composition, for example the laundry composition, of the present invention preferably comprises 0.01 to 5%wt, more preferably from 0.05 to 3%wt, even more preferably from 0.1 to 1%wt by weight of microcapsules. In this exception, the weight of the microcapsules is of the material as supplied, and this may be in the form of the above-mentioned solvent I slurry I carrier comprising the microcapsules.

[0430] Perfume included in core of microcapsules

[0431] The perfume included in the core of the microcapsules is present at a level from 5 to 99 %, preferably 10 to 99%, more preferably 15 to 95%, and most preferably 20 to 93% by weight of the microcapsule.

[0432] Useful perfume components may include materials of both natural and synthetic origin. They include single compounds and mixtures. Specific examples of such components may be found in the current literature, e.g., in Fenaroli's Handbook of Flavor Ingredients, 1975, CRC Press;Synthetic Food Adjuncts, 1947 by M. B. Jacobs, edited by Van Nostrand; or Perfume and Flavor Chemicals by S. Arctander 1969, Montclair, N.J. (USA).

[0433] Particularly preferred perfume components are blooming perfume components and substantive perfume components. Blooming perfume components are defined by a boiling point less than 250°C and a LogP greater than 2.5. Substantive perfume components are defined by a boiling point greater than 250°C and a LogP greater than 2.5. Preferably a perfume composition will comprise a mixture of blooming and substantive perfume components. The perfume composition may comprise other perfume components.

[0434] Perfume components may be present in a perfume composition. In the compositions for use in the present invention it is envisaged that there will be three or more, preferably four or more, more preferably five or more, most preferably six or more different perfume components. An upper limit of 300 perfume ingredients may be applied.

[0435] Preferably, the perfume comprises a component selected from the group consisting of ethyl-2-methyl valerate (manzanate), limonene, (4Z)-cyclopentadec-4-en-1-one, dihyro myrcenol, dimethyl benzyl carbonate acetate, benzyl acetate, spiro[1,3-dioxolane-2,5'-(4',4',8',8'-tetramethyl-hexahydro-3',9'-methanonaphthalene)], benzyl acetate, Rose Oxide, geraniol, methyl nonyl acetaldehyde, decanal, octanal, undecanal, verdyl acetate, tert-butylcyclohexyl acetate, cyclamal, beta ionone, hexyl salicylate, tonalid, phenafleur, octahydrotetramethyl acetophenone (OTNE), the benzene, toluene, xylene (BTX) feedstock class such as 2-phenyl ethanol, phenoxanol and mixtures thereof, the cyclododecanone feedstock class, such as habolonolide, the phenolics feedstock class such as hexyl salicylate, the C5 blocks or oxygen containing heterocycle moiety feedstock class such as gamma decalactone, methyl dihydrojasmonate and mixtures thereof, the terpenes feedstock class such as dihydromycernol, linalool, terpinolene, camphor, citronellol and mixtures thereof, the alkyl alcohols feedstock class such as ethyl-2-methylbutyrate, the diacids feedstock class such as ethylene brassylate, and mixtures of these components.

[0436] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component ethyl-2-methyl valerate (manzanate).

[0437] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component limonene.Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component (4Z)-cyclopentadec-4-en-1-one.

[0438] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component dimethyl benzyl carbonate acetate.

[0439] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component dihyromyrcenol.

[0440] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component rose oxide.

[0441] Preferably, the perfume comprises from 0.5 to 30wt.%, more preferably from 2 to 15% and especially preferably from 6 to 10wt.% of the perfume component tert-butylcyclohexyl acetate.

[0442] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component verdyl acetate.

[0443] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component benzyl acetate.

[0444] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component spiro[1 ,3-dioxolane-2,5'-(4',4',8',8'-tetramethyl-hexahydro-3',9'-methanonaphthalene)].

[0445] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component geraniol.

[0446] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component methyl nonyl acetaldehyde.

[0447] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component cyclamal.Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component beta ionone.

[0448] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component hexyl salicylate.

[0449] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component tonalid.

[0450] Preferably, the perfume comprises from 0.5 to 30 wt.%, more preferably from 2 to 15 wt.% and especially preferably from 6 to 10 wt.% of the perfume component phenafleur.

[0451] Preferably, the perfume comprises a component selected from the benzene, toluene, xylene (BTX) feedstock class. More preferably, the perfume component is selected from 2-phenyl ethanol, phenoxanol and mixtures thereof.

[0452] Preferably, the perfume comprises a component selected from the cyclododecanone feedstock class. More preferably, the perfume component is habolonolide.

[0453] Preferably, the perfume comprises a component selected from the phenolics feedstock class. More preferably, the perfume component is hexyl salicylate.

[0454] Preferably, the perfume comprises a component selected from the C5 blocks or oxygen containing heterocycle moiety feedstock class. More preferably, the perfume component is selected from gamma decalactone, methyl dihydrojasmonate and mixtures thereof.

[0455] Preferably, the perfume comprises a component selected from the terpenes feedstock class. More preferably, the perfume component is selected from, linalool, terpinolene, camphor, citronellol and mixtures thereof.

[0456] Preferably, the perfume comprises a component selected from the alkyl alcohols feedstock class. More preferably, the perfume component is ethyl-2-methylbutyrate.

[0457] Preferably, the perfume comprises a component selected from the diacids feedstock class. More preferably, the perfume component is ethylene brassylate.Preferably, the perfume component listed above is present in the final composition at from 0.0001 to 1% by weight of the composition.

[0458] Home Care e.g. laundry Ingredients of the Invention

[0459] The composition comprises one or more home care e.g. laundry ingredients. The composition may comprise more than one home care e.g. laundry ingredient, preferably more than two home care e.g. laundry ingredients.

[0460] The one or more home care e.g. laundry ingredients may comprise any of the following:

[0461] Surfactants

[0462] The one or more home care e.g. laundry ingredients preferably comprise one or more surfactants which may be selected from anionic surfactants, non-ionic surfactants, cationic surfactants, amphoteric surfactant or mixtures thereof, preferably anionic surfactants and / or non-ionic surfactants.

[0463] Surfactants are present preferably from 0.1 % to 70%, more preferably 2 to 60%wt, from 1% to 50% or from 5% to about 40% or from 4 to 30 wt. %. total surfactant based on the total weight of the composition.

[0464] Anionic surfactant

[0465] The one or more home care e.g; laundry ingredients preferably comprise an anionic surfactant, and preferably this is selected from alkyl sulfate, alkyl ether sulfate, soap, alkyl sulfonate, alkaryl sulfonate, alpha-olefin sulfonate, alkyl isethionate, alkyl succinate, alkyl sulphosuccinate, alkyl ether sulphosuccinate, N-alkyl sarcosinate, alkyl phosphate, alkyl ether phosphate, alkyl ether carboxylic acid or mixtures thereof. Suitable anionic surfactants also include their corresponding salts, especially their sodium, potassium, calcium, magnesium, ammonium and mono-, di-, and triethanolamine salts. The alkyl radicals generally contain from 8 to 18, preferably from 10 to 18 carbon atoms and may be unsaturated. The alkyl ether sulfates, alkyl ether sulphosuccinates, alkyl ether phosphates and alkyl ether carboxylic acids and salts thereof may contain from 1 to 20 ethylene oxide (EO) or propylene oxide (PO) units per molecule.

[0466] Preferably the anionic surfactant is selected from alkyl sulfate, alkyl ether sulfate, soap and mixtures thereof, more preferably the anionic surfactant is selected from alkyl sulfate, alkyl ether sulfate and mixtures thereof.Most preferably the anionic surfactant comprises alkyl ether sulfate.

[0467] Alkyl ether sulfate is an anionic surfactant having a formula RO(CH2CH2O)nSO3M, wherein R is a linear or branched, alkyl or alkenyl group having 8 to 18 carbon atoms, preferably 10 to 18 carbon atoms, more preferably 12 to 14 carbon atoms; M is a positively charged ion comprising sodium, potassium, calcium, magnesium, ammonium, monoethanolamine, diethanolamine, triethanolamine or mixtures thereof, preferably sodium, potassium or mixtures thereof; n is the degree of ethoxylation of from 0.5 to 3, preferably from 1 to 3. A preferred example is sodium lauryl ether sulfate (SLES) in which the predominantly Ci2lauryl alkyl group has been ethoxylated with an average of 2EO units per molecule.

[0468] Preferably, the alkyl sulfate has an alkyl group having 8 to 18 carbon atoms, more preferably from 10 to 18 carbon atoms, even more preferably from 10 to 16 carbon atoms. The alkyl group may be liner or branched, but is preferably linear.

[0469] Preferably, the alkyl sulfate comprises a salt of an alkyl sulfate, comprising a positively charged ion and a negatively alkyl sulfate moiety. The positively charged ion may be a metal ion such as sodium, potassium or magnesium; or an ammoniacal ion such as ammonium, monoethanolamine, diethanolamine or triethanolamine or any mixture thereof e.gsodium and potassium.

[0470] Preferred alkyl sulfates comprise sodium, potassium, calcium, magnesium, ammonium or ethanolamine salts of alkyl sulfate having 8 to 18 carbon atoms, more preferably 10 to 18 carbon atoms, even more preferably from 10 to 16 carbon atoms. Illustrative yet non-limiting examples of alkyl sulfates include sodium lauryl sulfate (also known as sodium dodecyl sulfate), ammonium lauryl sulfate, diethanolamine (DEA) lauryl sulfate. Suitable examples also include alkyl sulfates commercially available from natural source with trade names Galaxy 689, Galaxy 780, Galaxy 789, Galaxy 799 SP, and llfarol TCL 92N and from synthetic origin with trade names Safol 23, Dobanol 23A or23S, Lial 123 S, Alfol 1412S, Empicol LC3, Empicol 075SR. Sodium lauryl sulfate (SLS), also known as sodium dodecyl sulfate, is particularly preferred as the alkyl sulfate.

[0471] The term “soap” as used herein, means the alkali metal or alkanol ammonium salts of aliphatic, alkanes, or alkene monocarboxylic acids. Preferred monocarboxylic acids are fatty acids with 6 to 22 carbon atoms, more preferably from 12 to 18 carbon atoms. Examples of suitable soap include, but not limited to, sodium, potassium, calcium, magnesium, ammonium,monoethanolamine, diethanolamine, triethanolamine salts of lauric acid, myristic acid, palmitic acid, stearic acid, (hydrogenated) erucic acid, behenic acid, coconut oil fatty acid, palm oil fatty acid, palm kernel oil fatty acid, olive oil fatty acid, tallow fatty acid or mixtures thereof. The fatty acids may be saturated or unsaturated, linear or branched. It is particularly preferred that the soap comprises sodium or potassium salts of coconut fatty acid, palm kernel oil fatty acid or mixtures thereof.

[0472] Preferably, as an addition or alternative to the above-mentioned surfactant, the one or more home care e.g; laundry ingredients comprise alkyl aryl sulphonate surfactant.

[0473] Preferably the alkyl aryl sulphonate surfactant comprises a sulphonate surfactant wherein the alkyl group comprises from C10 to C22 alkyl group. More preferably where the aryl group is benzene. The alkyl aryl sulphonate surfactant may be linear or branched, saturated or unsaturated and mixtures thereof.

[0474] More preferably the alkyl aryl sulphonate surfactant has a linear alkyl group comprising from C10 to C22 alkyl group, more preferably from C10 to C18 alkyl group, more preferably from C10 to C16 alkyl group still more preferably from C10 to C13 alkyl group.

[0475] Preferably the sulphonate surfactant is an alkyl benzene sulphonate surfactant. Preferably the alkyl chain in the alkyl benzene sulphonate is straight or branched, more preferably linear.

[0476] Preferably the sulphonate surfactant is a linear alkyl benzene sulphonate with a C10 to C18 alkyl group, still preferably C10 to C14 alkyl group and most preferably C10 to C13 linear alkyl benzene sulphonate. Preferably the higher linear alkyl benzene sulfonate is a sodium alkylbenzene sulfonate surfactant (LAS), which preferably has a straight chain alkyl radical of average length of about 11 to 13 carbon atoms. Suitable alkyl benzene sulphonate (LAS) is obtainable, preferably obtained, by sulphonating commercially available linear alkyl benzene (LAB); suitable LAB includes low 2-phenyl LAB, other suitable LAB includes high 2-phenyl LAB, such as those supplied by Sasol under the tradename Hyblene®.

[0477] Preferably C10 to C15 alkyl benzene sulfonates (LAS), still preferably C10 to C14 alkyl benzene sulfonates (LAS), still preferably the benzene sulfonate (LAS) has at least 50 wt.% of C12 alkyl benzene sulfonate, still preferably 80 wt.% C12 alkyl benzene sulfonates. The alkyl benzene sulphonate is preferably in the salt form with the cation selected from alkali metal, alkaline earthmetal or alkanolamine. Preferably alkali metal selected from sodium or potassium, most preferably sodium.

[0478] Examples of alkylbenzene sulfonates include sodium salt of linear alkylbenzene sulphonate, alkyl toluene sulphonate, alkyl xylene sulphonate, alkyl phenol sulphonate, alkyl naphthalenesulphonate, ammonium diamylnaphthalene-sulphonate and sodium dinonylnaphthalenesulphonate and mixtures with olefin sulphonates.

[0479] Preferably the laundry detergent composition includes from 1 wt.% to 25 wt.% alkyl aryl sulphonate surfactant. More preferably the alkyl aryl sulphonate surfactant is linear alkyl benzene sulphonate surfactant. Preferably the amount of linear alkyl benzene sulphonate surfactant ranges from 1 wt.% to 20 wt.%, still preferably from 2 wt.% to 20 wt.%, more preferably 7 wt.% to 20 wt.%, even more preferably 8 wt.% to 20 wt.%, still more preferably from 10 wt.% to 20 wt.%. Still preferably the amount of linear alkyl benzene sulphonate surfactant is preferably in an amount ranging from 1 wt.% to 25 wt.%, still preferably from 1 wt.% to 20 wt.%, more preferably 2 wt.% to 20 wt.%, still more preferably from 8 wt.% to 20wt.%. Preferably the amount of linear alkyl benzene sulphonate surfactant in the solid laundry detergent composition is not less than 1 wt.%, still preferably not less than 2 wt.%, more preferably not less than 5 wt.%, still more preferably not less than 8 wt.%, but typically not more than 20 wt.%, preferably not more than 18 wt.% or still preferably not more than 16 wt.%.

[0480] Preferably, as an additional or alternative surfactant to the above-mentioned surfactants, the anionic surfactant comprises biosurfactant such as sophorolipid or rhamnolipid, preferably mono-rhamnolipid or di-rhamnolipid or mixtures thereof.

[0481] The composition of the present invention preferably comprises a total of from 0.1 to 30% by weight of anionic surfactant (all anionic surfactant present, including any anionic surfactant of the invention), more preferably from 0.5 to 20%, even more preferably from 1 to 15% and most preferably from 2 to 10%, based on total weight of the composition and including all ranges subsumed therein.

[0482] Preferably, as an addition or alternative to the above-mentioned anionic surfactant / s, the one or more home care e.g; laundry ingredients of the invention comprise non-ionic surfactant.

[0483] Preferably the nonionic surfactant comprises Cs to Cis alkyl alcohol ethoxylates, more preferably C12 to C15 primary linear alcohol ethoxylates with an average of from 3 to 20, morepreferably from 3 to 10 moles of ethylene oxide per mole of alcohol. Particularly preferred are lauryl alcohol condensed with 3, 5, 7 and 9 moles of EO (AEO-3, AEO-5, AEO-7 and AEO-9).

[0484] A further preferred non-ionic surfactant are the C16 / 18 Alcohol ethoxylates.

[0485] Another preferred class of non-ionic surfactant is alkoxylated glycerol esters. The alkoxylated glycerol ester is represented by the following formula:

[0486]

[0487] Wherein each of R1 to R6is independently a hydrogen or a methyl group; each of R7to R9is independently a linear or branched, alkyl or alkenyl group having 5 to 30 carbon atoms, preferably from 8 to 22 carbon atoms7more preferably from 10 to 18 carbon atoms; m, n, p, x, y, or z is independently a number of from 1 to 30, preferably from 5 to 25 and more preferably from 12 to 21. The sum of m, n, p, x, y, z being in the range of 3 to 90.

[0488] Preferably, the alkoxylated glycerol ester comprises coconut fatty acid esters, palm oil fatty acid esters or mixtures thereof, most preferably palm kernel oil ethoxylates e.g. SOE-N-60 from Sinolight Surfactant Technology Co., Ltd. Other suitable alkoxylated glyceryl esters are commercially available from Kao under the Levenol brand name. Variants such as Levenol F-200 which has an average EO of 6 and a molar ratio between glycerol and coco fatty acid of 0.55, Levenol V501 / 2 which has an average EO of 17 and a molar ratio between glycerol and coco fatty acid of 1.5 and Levenol C201 which is also known as glycereth-17 cocoate.

[0489] Preferably, as an addition or alternative to the above-mentioned surfactants, The one or more home care e.g; laundry ingredients of the invention comprise methyl ester ethoxylate.

[0490] Methyl ester ethoxylate surfactant is of the form: R3(-C=O)-O-(CH2CH2-O)n-CH3

[0491] where R3COO is a fatty acid moiety, such as oleic, stearic, palmitic. Fatty acid nomenclature is to describe the fatty acid by 2 numbers A:B where A is the number of carbons in the fatty acid and B is the number of double bonds it contains. For example oleic is 18:1 , stearic is 18:0 and palmitic 16:0. The position of the double bond on the chain may be given in brackets, 18:1(9) for oleic, 18:2 (9,12) for linoleic where 9 if the number of carbons from the COOH end. The integer n is the mole average number of ethoxylates.Methyl ester ethoxylates (MEE) are described in chapter 8 of Biobased Surfactants (Second Edition) Synthesis, Properties, and Applications Pages 287-301 (AOCS press 2019) by G.A. Smith; J. Am. Oil. Chem.Soc. vol 74 (1997) page 847-859 by Cox M.E. and Weerasooriva II; Tenside Surf.Det. vol 28 (2001) page by 72-80 by Hreczuch et al; by C. Kolano. Household and Personal Care Today (2012) page 52-55; J.Am.Oil. Chem.Soc. vol 72 (1995) page 781-784 by A. Hama et al. MEE may be produced the reaction of methyl ester with ethylene oxide, using catalysts based on calcium or magnesium. The catalyst may be removed or left in the MEE. The methyl ester ethoxylate preferably has a mole average of from 8 to 13 ethoxylate groups (EO). The most preferred ethoxylate has a mol average of from 9 to 11 EO, even more preferably 10EO. When the MEE has a mole average of 10EO then at least 10 wt.% of the MEE should consist of ethoxylate with 9, 10 and 11 ethoxylate groups.

[0492] In the context of the wider MEE contribution, it is preferred that at least 40 wt.% of the total MEE in the composition is C18:1. In addition, it is preferred that the MEE component also comprises some C16 MEE. Accordingly, it is preferred that the total MEE component comprises from 5 to 50wt.% total MEE, C16 MEE. Preferably the C16 MEE is greater than 90wt.%, more preferably greater than 95wt.% C16:0.

[0493] Further, it is preferred that the total MEE component comprises less than 15 wt.%, more preferably less than 10 wt.%, most preferably less than 5 wt.% total MEE of polyunsaturated C18, i.e. C18:2 and C18:3. Preferably C18:3 is present at less than 1 wt.%, more preferably less than 0.5 wt.%, most preferably essentially absent. The levels of polyunsaturation may be controlled by distillation, fractionation or partial hydrogenation of the raw materials (triglyceride or methyl ester) or of the MEE. Further, it is preferred that the C18:0 component is less than 10wt.% by weight of the total MEE present.

[0494] Further, it is preferred that the components with carbon chains of 15 or shorter comprise less than 4wt% by weight of the total MEE present.

[0495] A particularly preferred MEE has 2 to 26 wt.% of the MEE C16:0 chains, 1 to 10 wt.% C18:0 chains, 50 to 85 wt.% 018:1 chains and 1 to 12 wt.% 018:2 chains.

[0496] Preferred sources for the alkyl groups for the MEE include methyl ester derived from distilled palm oil and distilled high oleic methyl ester derived from palm kernel oil, partially hydrogenated methyl ester of low euric rapeseed oil, methyl ester of high oleic sunflower oil, methyl ester of high oleic safflower oil and methyl ester of high oleic soybean oil. High Oleic oils are availablefrom DuPont (Plenish high oleice soybean oil), Monsanto (Visitive Gold Soybean oil), Dow (Omega-9 Canola oil, Omega-9 sunflower oil), the National Sunflower Association and Oilseeds International.

[0497] Preferably the double bonds in the MEE are greater than 80 wt.% in the cis configuration.

[0498] Preferably the 18:1 component is oleic. Preferably the 18:2 component is linoleic. The methyl group of the methyl ester may be replaced by an ethyl or propyl group. Methyl is most preferred. Additionally or alternatively, the one or more home care e.g; laundry ingredients preferably include such non-ionic surfactant as fatty acid amide and / or alky poly glycoside (APG)

[0499] Mixtures of two or more of the above non-ionic surfactants can be used.

[0500] If included, non-ionic surfactant is preferably present at a total (i.e. including any non-ionic surfactant of the invention) level from 0.01 to 30%, more preferably from 0.1 to 20% and most preferably from 1 to 10%, based on total weight of the composition and including all ranges subsumed therein.

[0501] Additionally or alternatively, the one or more home care e.g; laundry ingredients preferably include cationic surfactant.

[0502] The composition may also comprise cationic surfactant. Preferred cationic surfactant comprises an alkyl chain C10 to 24 carbon atoms. Preferred cationic surfactants include C8 to C18 alkyl dimethyl ammonium halides and derivatives thereof in which one or two hydroxyethyl groups replace one or two of the methyl groups, and mixtures thereof and / or those described in detail in U.S. Patent No. 4,497,718 hereby incorporated by reference and / or also quaternary ammonium compounds or any mixture thereof.

[0503] Additionally or alternatively, the one or more home care e.g; laundry ingredients preferably include amphoteric surfactant.

[0504] The composition may also comprise amphoteric surfactant, e.g. selected from alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulfobetaines (sultaines), alkyl glycinates, alkyl carboxyglycinates, alkyl amphoacetates, alkyl amphopropionates, alkylamphoglycinates, alkyl amidopropyl hydroxysultaines, acyl taurates and acyl glutamates, having alkyl radicals containing from about 8 to about 22 carbon atoms, the term “alkyl” being used to include the alkyl portion of higher acyl radicals.Preferred alkyl amine oxides are alkyl dimethyl amine oxide and alkyl amido propyl dimethyl amine oxide, more preferably alkyl dimethyl amine oxide. Especially preferred are lauryl dimethylamine oxide, coco dimethyl amine oxide and coco amido propyl dimethyl amine oxide.

[0505] Preferred alkyl betaines include alkyl betaine, alkyl amido betaine, alkyl amidopropyl betaine, alkyl sulphobetaine and alkyl phosphobetaine, wherein the alkyl groups preferably have from 8 to 19 carbon atoms. Examples include cocodimethyl sulphopropyl betaine, cetyl betaine, laurylamidopropyl betaine, caprylate / caprate betaine, capryl / capramidopropyl betaine, cocamidopropyl hydroxysultaine, cocobutyramido hydroxysultaine, and preferably lauryl betaine, cocamidopropyl betaine and sodium cocamphopropionate. Preferably the betaine is cocamidopropyl betaine (CAPB).

[0506] Advantageously, amphoteric surfactant may be present at less than 5%wt, preferably 0%wt. Advantageous, cationic surfactant may be present at less than 5%wt, preferably 0%wt. e.g. liquid laundry detergent compositions,

[0507] Advantageously, anionic surfactant may be present at less than 5%wt, preferably 0%wt. e.g. in fabric softening compositions.

[0508] Advantageously, compositions may be free from anionic surfactant if e.g. the comprise cationic actives e.g. quaternary ammonium compounds, such as fabric softening compositions.

[0509] Where the polymers of the invention are used as softeners in fabric treatment compositions, such compositions may comprise additional fabric softening actives e.g. polymeric materials or other softeners including quaternary ammonium compounds, silicone polymers, polysaccharides, clays, amines, fatty esters, fatty N-oxides, dispersible polyolefins, polymer latexes and mixtures thereof.

[0510] Preferred additional fabric softening actives are cationic or non-ionic material, preferably, cationic. The preferred softening actives for use in fabric conditioner compositions of the invention are quaternary ammonium compounds (QAC). Most preferably the quaternary ammonium compounds are tri-ethanol amine quaternary ammonium (TEA) compounds. The quaternary ammonium compounds may comprise fatty acid chains from any suitable source, preferably palm oil or tallow. It may be preferred that the fatty acid chains are sourced from plant sources.Home care e.g; laundry compositions, such as fabric treatment compositions may comprise less than10%wt, preferably less than 8%wt, more preferably less than 6%wt, more preferably less than 5%wt, even more preferably less than 4%wt, still more preferably less than 3%wt or less than 2%wt or less than 1%wt or less than 0.5%wt or less than 0.1 %wt of additional softening actives. Home care e.g; laundry compositions may be free from said additional softening actives.

[0511] Preferably home care compositions, such as laundry compositions, comprise less than10%wt, preferably less than 8%wt, more preferably less than 6%wt, more preferably less than 5%wt, even more preferably less than 4%wt, still more preferably less than 3%wt or less than 2%wt or less than 1%wt or less than 0.5%wt or less than 0.1 %wt of silicone. Laundry substrate treatment compositions may be free from silicone.

[0512] The one or more home care e.g; laundry ingredients of the invention may further comprise any of the following components:

[0513] Free Perfume

[0514] Home care e.g; laundry compositons of the present invention may further comprise free perfume, that is to say perfume which is not contained in the core of a microcapsule and which may comprise any of the above-listed materials for use with microcapsules (included in core). Preferably the free perfume is present at a level from 0.01 to 5%, more preferably from 0.05 to 3%, even more preferably 0.1 to 1% by weight of the composition.

[0515] Deposition Aids

[0516] Home care e.g; laundry compositions of the invention may comprise deposition aids, such as cationic polymers ( a polymer having an overall charge).

[0517] The cationic polymer may be naturally derived or synthetic. Cationic polymers include: acrylate polymers, cationic amino resins, cationic urea resins, and cationic polysaccharides, including: cationic celluloses, cationic guars and cationic starches. Alternative natural cationic polymers for example cationic alkyl polyglucoside PQ81 or cationic linoleates PQ88

[0518] The cationic polymer may be polysaccharide-based, and may include cationic celluloses, cationic guars and cationic starches. A preferred polysaccharide polymer is cationic cellulose. This refers to polymers having a cellulose backbone and an overall positive charge.Preferably the cationic cellulosic polymer is a quaternised hydroxy ether cellulose cationic polymer, known as Polyquaternium-10 and sold as llcare™ LR-400 by Dow.

[0519] Alternatively, the cationic cellulosic polymer may comprise quaternary ammonium salts of hydroxyethyl cellulose reacted with lauryl dimethyl ammonium- substituted epoxide e.g.

[0520] Polyquatemium 24.

[0521] The molecular weight of the cationic polymer is preferably greater than 20000 g / mol, more preferably greater than 25000 g / mol. The molecular weight is preferably less than 2000000 g / mol, more preferably less than 1 000000 g / mol.

[0522] Compositions according to the current invention preferably comprise cationic polymer at a level of 0.1 to 10 wt %, preferably 0.25 to 7.5 wt %, more preferably 0.5 to 5 wt % based on total weight of the composition.

[0523] Builders

[0524] Compositions of the invention may comprise builders or sequestrants / chelates which can be organic or inorganic or a mixture thereof. Suitable inorganic builders include chlorides, hydroxides, carbonates, sesquicarbonates, bicarbonates, silicates, zeolites, and mixtures thereof. Specific examples of such materials include sodium and potassium chloride, sodium and potassium hydroxide, sodium and potassium carbonate, sodium and potassium bicarbonate, sodium sesquicarbonate, sodium silicate and mixtures thereof.

[0525] Suitable organic builders include the alkali metal (e.g. sodium and potassium) citrates, succinates, malonates, carboxymethyl succinates, carboxylates, polycarboxylates and polyacetyl carboxylates. Specific examples include sodium, potassium and lithium salts of oxydisuccinic acid, mellitic acid, benzene polycarboxylic acids, and citric acid.

[0526] Aminopolycarboxylates are preferred. Suitable examples of aminopolycarboxylates include, but not limited to, glutamic acid N,N-diacetic acid (GLDA), methylglycinediacetic acid (MGDA), ethylenediaminedisuccinic acid (EDDS), iminodisuccinic acid (IDS), iminodimalic acid (IDM), nitrilotriacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA), diethylenetriaminepentaacetic acid (DTPA), hydroxyethylenediaminetetraacetic acid (HEDTA), iminodiacetic acid (IDA), hydroxyethyliminodiacetic acid (HEIDA), aspartic acid diethoxysuccinic acid (AES), aspartic acid-N,N-diacetic acid (ASDA), hydroxyethylethylene-diaminetriacetic acid (HEEDTA), iminodifumaric (IDF), iminoditartaric acid (IDT), iminodimaleic acid (IDMAL), ethylenediaminedifumaric acid (EDDF), ethylenediaminedimalic acid (EDDM),ethylenediamineditartaric acid (EDDT), ethylenediaminedimaleic acid (EDDMAL) or mixtures thereof.

[0527] Other examples are DEQUEST™, organic phosphonate type sequestering agents sold by Monsanto and alkanehydroxy phosphonates. Examples of phosphate sequestrants include, but not limited to, 1-hydroxyethylidene-1,1-diphosphnic acid (HEDP), diethylenetriaminepenta(methylenephosphonic acid) (DTPMP), hexamethylenediaminetetra(methylenephosphonic acid) (HDTMP), aminotris(methylenephosphonic acid) (ATMP), ethylenediaminetetra(methylenephosphonic acid) (EDTMP), tetramethylenediaminetetra(methylenephosphonic acid) (TDTMP), phosphonobutanetricarboxylic acid (PBTC) or mixtures thereof.

[0528] Organic builders include polymers e.g. polyacrylic acid, polymaleic acid, and polyacrylic / polymaleic acid copolymers and their salts, for example those sold by BASF under the name SOKALAN™. If utilized, the organic builder materials may comprise from about 0.5 to 20 wt.%, preferably from 1 to 10 wt.% of the composition. The preferred builder level is less than 10 wt.% and preferably less than 5 wt.% of the composition.

[0529] The sequestrant can be in the form of an acid or a corresponding salt. Preferably the sequestrant is in the form of a corresponding salt, more preferably an alkali metal salt and even more preferably a sodium salt.

[0530] Mixtures of any of the above-described materials may also be used.

[0531] The composition of the present invention preferably comprises the builders in an amount of from 0.01 to 10%, more preferably from 0.1 to 5%, even more preferably from 0.25 to 4% and most preferably from 0.5 to 2.5%, based on total weight of the composition and including all ranges subsumed therein.

[0532] Non-Aqueous Carrier

[0533] Compositions of the invention preferably comprise non-aqueous carriers selected from hydrotropes, co-solvents and phase stabilizers. Such materials are typically low molecular weight, water-soluble or water-miscible organic liquids such as C1 to C5 monohydric alcohols (such as ethanol and n- or i-propanol); C2 to C6 diols (such as monopropylene glycol and dipropylene glycol); C3 to C9 triols (such as glycerol); polyethylene glycols having a weight average molecular weight (Mw) ranging from about 200 to 600; C1 to C3 alkanolamines such as mono-, di- and triethanolamines; and alkyl aryl sulfonates having up to 3 carbon atoms in thelower alkyl group (such as the sodium and potassium xylene, toluene, ethylbenzene and isopropyl benzene (cumene) sulfonates). Mixtures of any of the above described materials may also be used.

[0534] Non-aqueous carriers, when included, may be present in an amount ranging from 0.01 to 50% by weight of the composition, preferably from 0.05 to 30%, more preferably from 0.1 to 15% and even more preferably from 0.2 to 5%, based on total weight of the composition and including all ranges subsumed therein. The level of hydrotrope used is linked to the level of surfactant and it is desirable to use hydrotrope level to manage the viscosity in such compositions. Preferred hydrotropes are monopropylene glycol, glycerol, triethanolamines or mixtures thereof.

[0535] Soil Release Polymer (SRP)

[0536] The composition of the invention preferably comprises soil release polymer SRP. SRPs may be charged (e.g. anionic) or non-charged monomer units, and structures may be linear, branched or star-shaped. The SRP may also include capping groups to control molecular weight or to alter polymer properties such as surface activity. The weight average molecular weight (Mw) of the SRP may suitably range from about 1000 to about 20,000 and preferably ranges from about 1500 to about 10,000.

[0537] SRPs for use in the invention may suitably be selected from copolyesters of dicarboxylic acids (for example adipic acid, phthalic acid or terephthalic acid), diols (for example ethylene glycol or propylene glycol) and polydiols (for example polyethylene glycol or polypropylene glycol). The copolyester may also include monomeric units substituted with anionic groups, such as for example sulfonated isophthaloyl units. Examples of such materials include oligomeric esters produced by transesterification / oligomerization of poly(ethyleneglycol) methyl ether, dimethyl terephthalate (“DMT”), propylene glycol (“PG”) and poly(ethyleneglycol) (“PEG”); partly- and fully-anionic-end-capped oligomeric esters such as oligomers from ethylene glycol (“EG”), PG, DMT and Na-3,6-dioxa-8-hydroxyoctanesulfonate; nonionic-capped block polyester oligomeric compounds such as those produced from DMT, Me-capped PEG and EG and / or PG, or a combination of DMT, EG and / or PG, Me-capped PEG and Na-dimethyl-5-sulfoisophthalate, and copolymeric blocks of ethylene terephthalate or propylene terephthalate with polyethylene oxide or polypropylene oxide terephthalate.

[0538] Other types of SRP for use in the invention include cellulosic derivatives such as hydroxyether cellulosic polymers, C1-C4 alkylcelluloses and C4 hydroxyalkyl celluloses; polymers with poly(vinyl ester) hydrophobic segments such as graft copolymers of poly(vinyl ester), forexample Ci-Ce vinyl esters (such as poly(vinyl acetate)) grafted onto polyalkylene oxide backbones; poly(vinyl caprolactam) and related co-polymers with monomers such as vinyl pyrrolidone and / or dimethylaminoethyl methacrylate; and polyester-polyamide polymers prepared by condensing adipic acid, caprolactam, and polyethylene glycol.

[0539] Preferred SRPs for use in the invention include copolyesters formed by condensation of terephthalic acid ester and diol, preferably 1,2 propanediol, and further comprising an end cap formed from repeat units of alkylene oxide capped with an alkyl group. Examples of such materials have a structure corresponding to general formula (VI):

[0540]

[0541] in which R14 and R15 independently of one another are X-(OC2H4)q-(OC3He)s;

[0542] in which X is C1-4 alkyl and preferably methyl;

[0543] q is a number from 12 to 120, preferably from 40 to 50;

[0544] s is a number from 1 to 10, preferably from 1 to 7; and

[0545] i is a number from 4 to 9.

[0546] Because they are averages, q, s and i are not necessarily whole numbers for the polymer in bulk.

[0547] Mixtures of any of the above described materials may also be used.

[0548] The overall level of SRP, when included, may range from 0.1 to 10% by weight of the composition, depending on the level of polymer intended for use in the final composition and which is desirably from 0.3 to 7%, more preferably from 0.5 to 5%, based on total weight of the composition and including all ranges subsumed therein.

[0549] Suitable SRPs are described in greater detail in II. S. Patent Nos. 5,574,179; 4,956,447;

[0550] 4,861,512; 4,702,857, WO 2007 / 079850 and WO2016 / 005271. If employed, SRPs will typically be incorporated into the composition herein in concentrations ranging from 0.01 to 10%, more preferably from 0.1 to 5% by weight of the composition.

[0551] Polymeric Cleaning Boosters

[0552] Preferably, compositions of the invention include polymeric cleaning boosters, as an alternative or in addition to the SRPs described above. Preferred polymeric cleaning boosters include antiredeposition polymers.Preferred are anti-redeposition polymers include alkoxylated polyethyleneimines. These comprise ethylene imine units -CH2CH2NH- and, where branched, the hydrogen on the nitrogen is replaced by another chain of ethylene imine units. Preferred alkoxylated polyethyleneimines have a polyethyleneimine backbone of about 300 to about 10000 weight average molecular weight (Mw). The polyethyleneimine backbone may be linear or branched. It may be branched to the extent that it is a dendrimer. The alkoxylation may typically be ethoxylation or propoxylation, or a mixture of both. Where a nitrogen atom is alkoxylated, a preferred average degree of alkoxylation is from 10 to 30, preferably from 15 to 25 alkoxy groups per modification. A preferred material is ethoxylated polyethyleneimine, with an average degree of ethoxylation being from 10 to 30, preferably from 15 to 25 ethoxy groups per ethoxylated nitrogen atom in the polyethyleneimine backbone. Mixtures of any of the above described materials may also be used.

[0553] More preferably, the polyamine is an alkoxylated cationic or zwitterionic polyamine polymer, wherein the positive charge is provided by quaternisation of the nitrogen atoms of the amines, and the anionic groups (where present) by sulphation or sulphonation of the alkoxylated group. Preferably the alkoxylate is selected from propoxy and ethoxy, most preferably ethoxy.

[0554] Preferably greater than or equal to 50 mol% of nitrogen amines are quaternised, preferably with a methyl group. Preferably the polymer contains 2 to 10, more preferably 2 to 6, most preferably 3 to 5 quanternised nitrogen amines. Preferably the alkoxylate groups are selected from ethoxy and propoxy groups, most preferably ethoxy.

[0555] Preferably the polymer contains ester (COO) or acid amide (CONH) groups within the structure, preferably these groups are placed, so that when all the ester or acid amide groups are hydrolysed, at least one, preferably all of the hydrolysed fragments has a molecular weight of less than 4000, preferably less than 2000, most preferably less than 1000. Preferably the polymer is of the form:

[0556]

[0557] where R1 is a C3 to C8 alkyl group, X is an a (C2H4O)nY group where n is from 15 to 30, where m is from 2 to 10, preferably 2, 3, 4 or 5 and where Y is selected from OH and SOa' and preferably the number of SOa' groups is greater than the number of OH groups. Preferablythere are from 0, 1 or 2 OH groups. X and Ri may contain ester groups within them. X may contain a carbonyl group, preferably an ester group. There is preferably 1 C2H4O unit separating the ester group from the N, such that the structural unit N- C2H4O-ester- (C2H4O)n-iY is preferred.

[0558] Such polymers are described in WO2021239547 (Unilever). An example polymer is sulphated ethoxylated hexamethylene diamine and examples P1, P2, P3, P4, P5 and P6 of WO2021239547. Acid amide and ester groups may be included using lactones or sodium chloroacetate respectively (Modified Williamson synthesis), addition to an OH or NH group, then subsequent ethoxylation. Addition of lactones is discussed in WO2021 / 165468.

[0559] A composition of the invention will preferably comprise from 0.025 to 8 wt.% of one or more anti-redeposition polymers such as, for example, the alkoxylated polyethyleneimines or zwitterionic polyamines which are described above.

[0560] Preservative

[0561] The composition preferably comprises a preservative or a mixture of preservatives. Preferably the preservative is selected from benzoic acid and salts thereof, alkylesters of p-hydroxybenzoic acid and salts thereof, sorbic acid, diethyl pyrocarbonate, dimethyl pyrocarbonate, preferably benzoic acid and salts thereof, most preferably sodium benzoate. An alternatively preferred preservative is selected from sodium benzoate, phenoxyethanol, dehydroacetaic acid and mixtures thereof.

[0562] The preservative is present in the composition at 0.1 to 3 wt.%, preferably 0.3 to 1.5 wt.%. Weights are calculated for the protonated form where appropriate.

[0563] Preferably, the composition comprises sodium benzoate at from 0.1 to 3 wt.%, preferably 0.3 to 1.5 wt.% of the composition. Preferably, the composition comprises phenoxyethanol at from 0.1 to 3 wt.%, preferably 0.3 to 1.5 wt.% of the composition. Preferably, the composition comprises dehydroacetic acid at from 0.1 to 3 wt.%, preferably 0.3 to 1.5 wt.% of the composition. Preferably, the composition comprises less than 0.1 wt.% isothiazolinone-based preservative, more preferably less than 0.05 wt.%.

[0564] Fluorescent Agent

[0565] Compositions of the invention may comprise a fluorescer, preferably as alkali metal salts, for example, the sodium salts, and preferably at level from 0.005 to 2%, more preferably 0.01 to0.5% by weight of the composition. Preferred classes of fluorescent agents are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g. Tinopal DMS pure Xtra, Tinopal 5BMGX, and Blankophor (Trade Mark) HRH, and Pyrazoline compounds, e.g. Blankophor SN.

[0566] Shading dyes

[0567] Compositions of the invention may comprise shading dyes. Preferred dyes are violet or blue. Shading dyes can mask yellowing of fabrics and / or compositions. Suitable and preferred classes of dyes include direct dyes, acid dyes, hydrophobic dyes, basic dyes, reactive dyes and dye conjugates. Preferred examples are Disperse Violet 28, Acid Violet 50, anthraquinone dyes covalently bound to ethoxylate or propoxylated polyethylene imine as described in WO2011 / 047987 and WO 2012 / 119859 alkoxylated mono-azo thiophenes, dye with CAS-No 72749-80-5, acid blue 59, and the phenazine dye selected from:

[0568]

[0569] wherein:

[0570] X3 is selected from: -H; -F; -CH3; -C2H5; -OCH3; and, -OC2H5;

[0571] X4 is selected from: -H; -CH3; -C2H5; -OCH3; and, -OC2H5;

[0572] Y2is selected from: -OH; -OCH2CH2OH; -CH(OH)CH2OH; -OC(O)CH3; and, C(O)OCH3.

[0573] Alkoxylated thiophene dyes are discussed in WO2013 / 142495 and W02008 / 087497.

[0574] Shading dye can be used with or without fluorescent agents, but preferably with fluorescent agents e.g. to reduce yellowing due to chemical changes in adsorbed fluorescent agents. If included in compositions of the invention, shading dye is preferably present from 0.0001 to 0.1 wt.%.

[0575] External Structurants

[0576] Compositions of the invention may include one or more further external structurants e.g. crystallizable glycerides such as hydrogenated castor oil; microfibrous cellulose, citrus pulp fibre, bacterial cellulose, copolymer of (meth)acrylic acid and C1-C2 alkyl (meth) acrylate. External structurants may form a structuring network in the composition to thereby alterrheology and may impart shear thinning rheology and may also enable stable suspension of materials e.g. encapsulates and visual cues stably in liquid compositions.

[0577] The composition preferably comprises a crystallizable glyceride. The composition preferably comprises an external structuring system (ESS) comprising a crystallizable glyceride for example the ESS of WO2011 / 031940, the contents of which, in particular as regards manufacture of the ESS are incorporated here by reference, referably, any ESS present comprises: (a) crystallizable glyceride(s); (b) alkanolamine; (c) anionic surfactant; (d) additional components; and (e) optional components, all discussed in detail below.

[0578] Crystallizable glyceride(s) of use herein preferably include "Hydrogenated castor oil" or "HCO". HCO as used herein most generally can be any hydrogenated castor oil, provided that it is capable of crystallizing in the ESS premix. Castor oils may include glycerides, especially triglycerides, comprising C10 to C22 alkyl or alkenyl moieties which incorporate a hydroxyl group. Hydrogenation of castor oil to make HCO converts double bonds, which may be present in the starting oil as ricinoleyl moieties, to convert ricinoleyl moieties to saturated hydroxyalkyl moieties, e.g., hydroxystearyl. The HCO herein may be selected from: trihydroxystearin; dihydroxystearin; and mixtures thereof. The HCO may be processed in any suitable starting form, including, but not limited those selected from solid, molten and mixtures thereof. HCO is typically present in the ESS of the present invention at a level of from about 2 percent to about 10 percent, from about 3 percent to about 8 percent, or from about 4 percent to about 6 percent by weight of the structuring system, the corresponding percentage of hydrogenated castor oil delivered into a finished laundry detergent product may be below about 1.0 percent, typically from 0.1 percent to 0.8 percent.

[0579] Useful HCO may have the following characteristics: a melting point of from about 40 degrees centigrade to about 100 degrees centigrade, or from about 65 degrees centigrade to about 95 degrees C; and / or Iodine value ranges of from 0 to about 5, from 0 to about 4, or from 0 to about 2.6. The melting point of HCO can be measured using either ASTM D3418 or ISO 11357; both tests utilize DSC: Differential Scanning Calorimetry. HCO of use in the present invention includes those that are commercially available. Non-limiting examples of commercially available HCO of use in the present invention include: THIXCIN(R) from Rheox, Inc. Further examples of useful HCO may be found in U.S. Patent 5,340,390. The source of the castor oil for hydrogenation to form HCO can be of any suitable origin. Castor oil may be hydrogenated using a precious metal, e.g., palladium catalyst, and the hydrogenation temperature and pressure arecontrolled to optimize hydrogenation of the double bonds of the native castor oil while avoiding unacceptable levels of dehydroxylation.

[0580] Any other suitable crystallizable glyceride(s) may be used, e.g. a substantially pure triglyceride of 12-hydroxystearic acid. This molecule represents the pure form of a fully hydrogenated triglyceride of 12-hydrox-9-cis-octadecenoic acid. In nature, the composition of castor oil is rather constant, but may vary somewhat. Likewise hydrogenation procedures may vary. Any other suitable equivalent materials, such as mixtures of triglycerides wherein at least 80 percent wt. is from castor oil, may be used. Exemplary equivalent materials comprise primarily, or consist essentially of, triglycerides; or comprise primarily, or consist essentially of, mixtures of diglycerides and triglycerides; or comprise primarily, or consist essentially of, mixtures of triglyerides with diglycerides and limited amounts, e.g., less than about 20 percent wt. of the glyceride mixtures, of monoglyerides; or comprise primarily, or consist essentially of, any of the foregoing glycerides with limited amounts, e.g., less than about 20 percent wt., of the corresponding acid hydrolysis product of any of said glycerides. A proviso in the above is that the major proportion, typically at least 80 percent wt, of any of said glycerides is chemically identical to glyceride of fully hydrogenated ricinoleic acid, i.e., glyceride of 12- hydroxy stearic acid. It is for example well known in the art to modify hydrogenated castor oil such that in a given triglyceride, there will be two 12-hydroxystearic- moieties and one stearic moiety.

[0581] Likewise it is envisioned that the hydrogenated castor oil may not be fully hydrogenated. In contrast, the invention excludes poly(oxyalkylated) castor oils when these fail the melting criteria.

[0582] Crystallizable glyceride(s) of use in the present invention preferably have a melting point of from about 40 degrees centigrade to about 100 degrees centigrade.

[0583] Enzymes

[0584] The composition preferably comprises an enzyme selected from cellulase, a protease and an amylase / mannase mixture. In addition, further enzymes may be present such as those described below.

[0585] Preferably, the composition may comprise an effective amount of one or more enzyme preferably selected from the group comprising lipases, hemicellulases, peroxidases, hemicellulases, xylanases, xantanase, lipases, phospholipases, esterases, cutinases, pectinases, carrageenases, pectate lyases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, p-glucanases,arabinosidases, hyaluronidase, chondroitinase, laccase, tannases, nucleases (such as deoxyribonuclease and / or ribonuclease), phosphodiesterases, or mixtures thereof.

[0586] Preferably the level of an enzyme is from 0.1 to 100, more preferably from 0.5 to 50, most preferably from 5 to 30 mg active enzyme protein per 100g finished laundry liquid composition. Examples of preferred enzymes are sold under the following trade names Purafect Prime®, Purafect®, Preferenz® (DuPont), Savinase®, Pectawash®, Mannaway®, Lipex®, Lipoclean ®, Whitzyme ® Stainzyme®, Stainzyme Plus®, Natalase ®, Mannaway ®, Amplify ® Xpect ®, Celluclean ® (Novozymes), Biotouch (AB Enzymes), Lavergy ® (BASF). Detergent enzymes are discussed in W02020 / 186028(Procter and Gamble), W02020 / 200600 (Henkel), W02020 / 070249 (Novozymes), W02021 / 001244 (BASF) and WO2020 / 259949 (Unilever). A nuclease enzyme is an enzyme capable of cleaving the phosphodiester bonds between the nucleotide sub-units of nucleic acids and is preferably a deoxyribonuclease or ribonuclease enzyme. Preferably the nuclease enzyme is a deoxyribonuclease, preferably selected from any of the classes E.C. 3.1.21.x, where x=l, 2, 3, 4, 5, 6, 7, 8 or 9, E.C. 3.1.22.y where y=l, 2, 4 or 5, E.C. 3.1.30.Z where z= 1 or 2, E.C. 3.1.31.1 and mixtures thereof.

[0587] Protease enzymes hydrolyse bonds within peptides and proteins, in the laundry context this leads to enhanced removal of protein or peptide containing stains. Examples of suitable proteases families include aspartic proteases; cysteine proteases; glutamic proteases; aspargine peptide lyase; serine proteases and threonine proteases. Such protease families are described in the MEROPS peptidase database (http: / / merops.sanger.ac.uk / ). Serine proteases are preferred. Subtilase type serine proteases are more preferred. The term "subtilases" refers to a sub-group of serine protease according to Siezen et al. , Protein Engng. 4 (1991) 719-737 and Siezen et al. Protein Science 6 (1997) 501 -523. Serine proteases are a subgroup of proteases characterized by having a serine in the active site, which forms a covalent adduct with the substrate. The subtilases may be divided into 6 sub divisions, i.e. the Subtilisin family, the Thermitase family, the Proteinase K family, the Lantibiotic peptidase family, the Kexin family and the Pyrolysin family.

[0588] Examples of subtilases are those derived from Bacillus such as Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in;

[0589] US7262042 and W009 / 021867, and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 and subtilisin 168 described in WO 89 / 06279 and protease PD138 described in (WO 93 / 18140). Other useful proteases may be those described in WO 92 / 175177,WO 01 / 016285, WO 02 / 026024 and WO 02 / 016547. Examples of trypsin-like proteases are trypsin (e.g. of porcine or bovine origin) and the Fusarium protease described in WO 89 / 06270, WO 94 / 25583 and WO 05 / 040372, and the chymotrypsin proteases derived from Cellumonas described in WO 05 / 052161 and WO 05 / 052146. Most preferably the protease is a subtilisins (E 3.4.21.62).

[0590] Examples of subtilases are those derived from Bacillus such as Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii described in;

[0591] US7262042 and W009 / 021867, and subtilisin lentus, subtilisin Novo, subtilisin Carlsberg, Bacillus licheniformis, subtilisin BPN', subtilisin 309, subtilisin 147 and subtilisin 168 described in WO89 / 06279 and protease PD138 described in (WO93 / 18140). Preferably the subsilisin is derived from Bacillus, preferably Bacillus lentus, B. alkalophilus, B. subtilis, B. amyloliquefaciens, Bacillus pumilus and Bacillus gibsonii as described in US 6,312,936 Bl, US 5,679,630, US 4,760,025, US7,262,042 and WO 09 / 021867. Most preferably the subtilisin is derived from Bacillus gibsonii or Bacillus Lentus.

[0592] Suitable commercially available protease enzymes include those sold under the trade names names Alcalase®, Blaze®; DuralaseTm, DurazymTm, Relase®, Relase® Ultra, Savinase®, Savinase® Ultra, Primase®, Polarzyme®, Kannase®, Liquanase®, Liquanase® Ultra, Ovozyme®, Coronase®, Coronase® Ultra, Neutrase®, Everlase® and Esperase® all could be sold as Ultra® or Evity® (Novozymes A / S).

[0593] Suitable amylases (alpha and / or beta) include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Amylases include, for example, alphaamylases obtained from Bacillus, e.g. a special strain of B. licheniformis, described in more detail in GB 1,296,839, or the Bacillus sp. strains disclosed in WO 95 / 026397 or WO00 / 060060. Commercially available amylases are Duramyl™, Termamyl™, Termamyl Ultra™, Natalase™, Stainzyme™, Fungamyl™ and BAN™ (Novozymes A / S), Rapidase™ and Purastar™ (from Genencor International Inc.).

[0594] Suitable cellulases include those of bacterial or fungal origin. Chemically modified or protein engineered mutants are included. Suitable cellulases include cellulases from the genera Bacillus, Pseudomonas, Humicola, Fusarium, Thielavia, Acremonium, e.g. the fungal cellulases produced from Humicola insolens, Thielavia terrestris, Myceliophthora thermophila, and Fusarium oxysporum disclosed in US 4,435,307, US 5,648,263, US 5,691 ,178, US 5,776,757, WO 89 / 09259, WO 96 / 029397, and WO 98 / 012307. Commercially available cellulases includeCelluzyme™, Carezyme™, Celluclean™, Endolase™, Renozyme™ (Novozymes A / S), Clazinase™ and Puradax HA™ (Genencor International Inc.), and KAC-500(B)™ (Kao Corporation). Celluclean™ is preferred.

[0595] Lipase

[0596] Lipases are lipid esterase enzymes and the terms lipid esterase and lipase are used herein synonymously.

[0597] The composition preferably comprises from 0.0005 to 0.5 wt.%, preferably from 0.005 to 0.2 wt.% of a lipase.

[0598] Cleaning lipid esterases are discussed in Enzymes in Detergency edited by Jan H. Van Ee, Onno Misset and Erik J. Baas (1997 Marcel Dekker, New York). The lipid esterase may be selected from lipase enzymes in E.C. class 3.1 or 3.2 or a combination thereof.

[0599] Preferably the cleaning lipid esterases is selected from:

[0600] (1) Triacylglycerol lipases (E.C. 3.1.1.3); (2) Carboxylic ester hydrolase (E.C. 3.1.1.1); (3) Cutinase (E.C. 3.1.1.74); (4) Sterol esterase (E.C. 3.1.1.13); (5) Wax-ester hydrolase (E.C. 3.1.1.50). Triacylglycerol lipases (E.C. 3.1.1.3) are most preferred.

[0601] Suitable triacylglycerol lipases can be selected from variants of the Humicola lanuginosa (Thermomyces lanuginosus) lipase. Other suitable triacylglycerol lipases can be selected from variants of Pseudomonas lipases, e.g., from P. alcaligenes or P. pseudoalcaligenes (EP 218 272), P. cepacia (EP 331 376), P. stutzeri (GB 1,372,034), P. fluorescens, Pseudomonas sp. strain SD 705 (WO 95 / 06720 and WO 96 / 27002), P. wisconsinensis (WO 96 / 12012), Bacillus lipases, e.g., from B. subtilis (Dartois et al. (1993), Biochemica et Biophysica Acta, 1131, 253-360), B. stearothermophilus (JP 64 / 744992) or B. pumilus (WO 91 / 16422).

[0602] Suitable carboxylic ester hydrolases can be selected from wild-types or variants of carboxylic ester hydrolases endogenous to B. gladioli, P. fluorescens, P. putida, B. acidocaldarius, B. subtilis, B. stearothermophilus, Streptomyces chrysomallus, S. diastatochromogenes and Saccaromyces cerevisiae.

[0603] Suitable cutinases can be selected from wild-types or variants of cutinases endogenous to strains of Aspergillus, in particular Aspergillus oryzae, a strain of Alternaria, in particular Alternaria brassiciola, a strain of Fusarium, in particular Fusarium solani, Fusarium solani pisi, Fusarium oxysporum, Fusarium oxysporum cepa, Fusarium roseum culmorum, or Fusarium roseum sambucium, a strain of Helminthosporum, in particular Helminthosporum sativum, astrain of Humicola, in particular Humicola insolens, a strain of Pseudomonas, in particular Pseudomonas mendocina, or Pseudomonas putida, a strain of Rhizoctonia, in particular Rhizoctonia solani, a strain of Streptomyces, in particular Streptomyces scabies, a strain of Coprinopsis, in particular Coprinopsis cinerea, a strain of Thermobifida, in particular Thermobifida fusca, a strain of Magnaporthe, in particular Magnaporthe grisea, or a strain of Ulocladium, in particular Ulocladium consortiale.

[0604] Preferably, the cutinase is selected from variants of the Pseudomonas mendocina cutinase described in WO 2003 / 076580 (Genencor), such as the variant with three substitutions at I178M, F180V, and S205G.

[0605] Preferably, the cutinase is a wild-type or variant of the six cutinases endogenous to Coprinopsis cinerea described in H. Kontkanen etal, App. Environ. Microbiology, 2009, p2148-2157.

[0606] Preferably, the cutinase is a wild-type or variant of the two cutinases endogenous to Trichoderma reesei described in W02009007510 (VTT). Highly preferred are cutinase derived from a strain of Humicola insolens, in particular the strain Humicola insolens DSM 1800.

[0607] Humicola insolens cutinase is described in WO 96 / 13580 which is hereby incorporated by reference. The cutinase may be a variant, such as one of the variants disclosed in WO 00 / 34450 and WO 01 / 92502. Preferred cutinase variants include variants listed in Example 2 of WO 01 / 92502. Preferred commercial cutinases include Novozym 51032 (available from Novozymes, Bagsvaerd, Denmark).

[0608] Suitable sterol esterases may be derived from a strain of Ophiostoma, for example Ophiostoma piceae, a strain of Pseudomonas, for example Pseudomonas aeruginosa, or a strain of Melanocarpus, for example Melanocarpus albomyces.

[0609] A highly preferred sterol esterase is the Melanocarpus albomyces sterol esterase described in H. Kontkanen et al, Enzyme Microb Technol., 39, (2006), 265-273.

[0610] Suitable wax-ester hydrolases may be derived from Simmondsia chinensis.

[0611] The lipid esterase is preferably selected from lipase enzyme in E.C. class 3.1.1.1 or 3.1.1.3 ora combination thereof, most preferably E.C.3.1.1.3. Examples of EC 3.1.1.3 lipases include those described in WIPO publications WO 00 / 60063, WO 99 / 42566, WO 02 / 062973, WO 97 / 04078, WO 97 / 04079 and US 5,869,438. Preferred lipases are produced by Absidia reflexa, Absidia corymbefera, Rhizmucor miehei, Rhizopus deleman Aspergillus niger, Aspergillus tubigensis, Fusaqum oxysporum, Fusarium heterosporum, Aspergillus oryzea, Penicilium camembertii, Aspergillus foetidus, Aspergillus niger, Thermomyces lanoginosus (synonym:Humicola lanuginosa) and Landerina penisapora, particularly Thermomyces lanoginosus.

[0612] Certain preferred lipases are supplied by Novozymes under the tradenames. Lipolase®, Lipolase Ultra®, Lipoprime®, Lipoclean® and Lipex® (registered tradenames of Novozymes) and LIPASE P "AMANO®" available from Areario Pharmaceutical Co. Ltd., Nagoya, Japan, AMANO-CES®, commercially available from Toyo Jozo Co., Tagata, Japan; and further Chromobacter viscosum lipases from Amersham Pharmacia Biotech., Piscataway, New Jersey, U.S.A, and Diosynth Co., Netherlands, and other lipases such as Pseudomonas gladioli.

[0613] Additional useful lipases are described in WIPO publications WO 02062973, WO 2004 / 101759, WO 2004 / 101760 and WO 2004 / 101763. Suitable lipases include the "first cycle lipases" described in WO 00 / 60063 and U.S. Patent 6,939,702 Bl, preferably a variant of SEQ ID No. 2, more preferably a variant of SEQ ID No. 2 having at least 90% homology to SEQ ID No. 2 comprising a substitution of an electrically neutral or negatively charged amino acid with R or K at any of positions 3, 224, 229, 231 and 233, with a most preferred variant comprising T23 IR and N233R mutations, such most preferred variant being sold under the tradename Lipex® (Novozymes).

[0614] The aforementioned lipases can be used in combination (any mixture of lipases can be used). Suitable lipases can be purchased from Novozymes, Bagsvaerd, Denmark; Areario Pharmaceutical Co. Ltd., Nagoya, Japan; Toyo Jozo Co., Tagata, Japan; Amersham Pharmacia Biotech., Piscataway, New Jersey, U.S.A; Diosynth Co., Oss, Netherlands and / or made in accordance with the examples contained herein.

[0615] Lipid esterase with reduced potential for odour generation and a good relative performance, are particularly preferred, as described in WO 2007 / 087243. These include lipoclean ® (Novozyme).

[0616] Preferred commercially available lipase enzymes include Lipolase™ and Lipolase Ultra™, Lipex™ and Lipoclean TM (Novozymes A / S).

[0617] Builder

[0618] Solid laundry detergent compositions of the invention preferably include from 0 wt.% to 8 wt.%, still preferably from 0 wt.% to 5 wt.%, more preferably from 0 wt.% to 1 wt.% of an inorganic non-carbonate builder selected from silica, zeolites, phosphate, or mixtures thereof. Preferably the composition of the present invention is substantially free of silicate salt, zeolite salt and phosphate builder. By substantially free it is meant that there is no deliberately added carbonate salt in the composition. Solid laundry detergent compositions of the invention preferably includepreferably include from 0 wt.% to 6 wt.% bicarbonate salt, preferably sodium bicarbonate. Solid laundry detergent compositions of the invention preferably include from 0 wt.% to 5 wt.% alkali metal silicate, more preferably 0 wt.% to 3 wt.% alkali metal silicate.

[0619] Other ingredients

[0620] Compositions of the invention may contain further optional ingredients to enhance performance and / or consumer acceptability. Examples of such ingredients include anti-foam, foam boosting agents, polyelectrolytes, anti-shrinking agents, anti-wrinkle agents, anti-oxidants, sunscreens, anti-corrosion agents, drape imparting agents, anti-static agents, ironing aids, colorants, pearlisers and / or opacifiers, silicones, clays, such as smectite clays. Each of these ingredients will be present in an amount effective to accomplish its purpose. Generally, these optional ingredients are included individually at an amount 0.1 - 5%wt, preferably 1-4%, more preferably 2-3%wt, based on total weight of the composition.

[0621] Packaging and dosing

[0622] The composition of the invention may be stored and / or supplied in any suitable packaging such as a bottle, or carton or multidose packs which may comprise a top or bottom closure. A dosing device for measuring the dose may be supplied with the pack for example as a part of a closure e.g. cap or in addition e.g. an over-cap, or as an integrated system e.g. with a reservoir.

[0623] Preferably, the packaging comprises a moulded article, preferably comprising post-consumer recycled material (PCR). Preferably the packaging is a non-food grade container.

[0624] Preferably, the composition is a liquid contained in a container, said container comprising at least 50% wt. post-consumer recycled resin (PCR) comprising polyolefin or polyester.

[0625] Methods

[0626] Methods of treatment of a laundry treatment laundry substrate using the composition may comprise the step of forming a liquid (known as a “wash liquor”) by adding to water, a dose of the composition of the present invention.

[0627] Other steps may include pre-treatment, adding to the wash liquor the substrate / s to be treated, rinsing, drying etc. The composition may be added during any step or steps of the method. Steps may be carried out manually or using a washing machine, preferably by machine and one or more may be carried out automatically as described herein. One or more rinse steps may follow a wash step and in such rinse step / s a fabric conditioner may be used. The fabric may then be dried e.g. air dried or dried using a tumble drier. Once dried the fabric may be storedbefore use or may be used straight away. Once the fabric has been used, it will then be treated, e.g. washed again, preferably with a composition of the present invention as described herein. AUTO-DOSING

[0628] Laundry compositions of the invention may also, advantageously used in automatic laundering methods e.g. in an auto-dosing washing machine.

[0629] Accordingly, and in a further aspect, there is provided a washing machine comprising a reservoir, said reservoir comprising from 80ml to 3000ml of a laundry composition according to the first aspect.

[0630] In a further aspect there is provided a method for cleaning fabric comprising filling a reservoir of a washing machine with from 80ml to 3000ml of a laundry composition according to the first aspect, and conducting at least two washing cycles before adding a further substrate treatment composition to the reservoir.

[0631] In a further aspect there is provided a method for cleaning fabric comprising filling a reservoir of a washing machine with from 80ml to 3000ml of a laundry treatment composition according to the first aspect, and conducting a washing cycle which draws a portion of the laundry substrate treatment composition from the reservoir and leaves at least 20ml in the reservoir.

[0632] In auto-dosing methods, the laundry composition is preferably a liquid, more preferably a liquid detergent, most preferably a liquid laundry detergent. The amount of 80ml to 3000 ml characterises an amount that is more than one dose. Preferably, the reservoir comprises from 250ml to 2500ml, more preferably from 400ml to 2000ml liquid detergent.

[0633] The washing machine preferably comprises a detergent reservoir which is able to store up to 3000 ml of detergent. Such a washing machine is known on the market as an auto-dosing washing machine and is capable of storing sufficient laundry liquid detergent for more than one washing cycle and preferably for many washing cycles. A typical example of such a machine is found in EP-A-3071 742 (Electrolux). Preferably, the washing machine is a front-loading automatic washing machine.

[0634] Preferably, the washing machine comprises an outer casing, a washing tub which is arranged inside the casing with its opening or mouth directly facing a laundry loading / unloading opening realized on a the front wall of the casing, a detergent dispensing assembly which is structuredfor supplying detergent into the washing tub, a main fresh-water supply circuit which is structured for being connected to the water mains and for selectively channelling a flow of fresh water from the water mains to the detergent dispensing assembly and / or to the washing tub, and an appliance control panel which is structured for allowing the user to manually select the desired washing-cycle.

[0635] The washing machine detergent dispensing assembly also comprises an auto-dosing detergent dispenser which is structured for automatically dosing, on the basis of the selected washing cycle, the suitable amount of detergent to be used during the selected washing cycle, and which comprises: one or more detergent reservoirs each of which is structured for receiving a quantity of detergent for performing a plurality of washing cycles; and, for each detergent reservoir, a respective detergent feeding pump which is structured to selectively suck, from the corresponding detergent reservoir, the amount of the detergent for performing the selected washing cycle, and to pump / channel said specific amount of detergent into a detergent collecting chamber fluidly communicating with the washing tub.

[0636] As well as the reservoir capable of containing the requisite amount of liquid laundry detergent, the washing machine of the invention comprises a motor to drive the agitation of a drum. Water is flushed through the machine and a pre-determined dose of detergent is added to this water to create the wash liquor.

[0637] Using an auto-dosing washing machine a consumer may conduct a number of washing cycles before needing to add further liquid detergent to the reservoir. Typically, a reservoir is sufficient to conduct five or more washes and potentially up to 20 or more depending on the size of the reservoir in the washing machine and also the dose to be used for each washing cycle.

[0638] Each washing cycle comprises the drawing of a volume of liquid laundry detergent from the reservoir sufficient to form an appropriate wash liquor to clean the fabric.

[0639] Preferably, this volume is from 10 to 75ml but this is likely dependent on the amount of fabric, the stains to be cleaned and the amount of surfactant and other cleaning agents in the liquid laundry composition.

[0640] After the first washing cycle is completed, the remaining liquid detergent is maintained in the washing machine until the next cycle starts, when a further dose is pumped from the reservoir and mixed with water to form a wash liquor.It is also possible that the compositions described herein are loaded into the washing machine by way of a cartridge which is co-operable with a component part to the washing machine. A cartridge may contain the requisite volume of liquid detergent composition required and which may be from 200ml to 3000ml.

[0641] Method of making the Laundry Composition

[0642] Sources

[0643] Allkyl chains of ingredients of laundry substrate treatment compositions, including but not exclusively surfactants and the polymer of the invention, may be based on fossil carbon or renewable carbon.

[0644] Preferably, they are obtained from a renewable carbon source which may be derived from the biomass, carbon capture (as in WO2022219118, WO2022219109, WO2022219132, etc.) , or chemical recycling. Alkyl chains may be produced by genetically engineered cells and microorganisms, e.g as in WO2013152051, W02008119082.

[0645] A renewable source is one where the material is produced by natural ecological cycle of a living species, preferably by a plant, algae, fungi, yeast or bacteria, more preferably plants, algae or yeasts. This excludes fossil based carbon sources.

[0646] Preferred plant sources of oils are rapeseed, sunflower, maze, soy, cottonseed, olive oil and tall oil, palm kernel and coconut oil. The required ratio of e.g. C12:C14 may be obtained by fractionation / distillation and mixing of components. Triglycerides are preferred and may be obtained from biomass using yeasts as described in Energy Environ. Sci., 2019,12, 2717 by Masri M.A. et al. Non edible plant oils may be used and are preferably selected from the fruit and seeds of Jatropha curcas, Calophyllum inophyllum, Sterculia feotida, Madhuca indica (mahua), Pongamia glabra (koroch seed), Linseed, Pongamia pinnata (karanja), Hevea brasiliensis (Rubber seed), Azadirachta indica (neem), Camelina sativa, Lesquerella fendleri, Nicotiana tabacum (tobacco), Deccan hemp, Ricinus communis L. (castor), Simmondsia chinensis (Jojoba), Eruca sativa. L., Cerbera odollam (Sea mango), Coriander (Coriandrum sativum L.), Croton megalocarpus, Pilu, Crambe, syringa, Scheleichera triguga (kusum), Stillingia, Shorea robusta (sal), Terminalia belerica roxb, Cuphea, Camellia, Champaca, Simarouba glauca, Garcinia indica, Rice bran, Hingan (balanites), Desert date, Cardoon, Asclepias syriaca (Milkweed), Guizotia abyssinica, Radish Ethiopian mustard, Syagrus, Tung, Idesia polycarpa var. vestita, Alagae, Argemone mexicana L. (Mexican prickly poppy, Putranjivaroxburghii (Lucky bean tree), Sapindus mukorossi (Soapnut), M. azedarach (syringe), Thevettia peruviana (yellow oleander), Copaiba, Milk bush, Laurel, Cumaru, Andiroba, Piqui, B. napus, Zanthoxylum bungeanum.

[0647] The C12 C14 linear alcohols which are suitable as an intermediate step in the manufacture of C12 C14 ether sulphate can be obtained from many different sustainable sources including primary sugars, biomas, recycled waste plastic, municipal solid waste, marine carbon, waste oils, methane capture.

[0648] EXAMPLES

[0649] The invention is described with reference to the following non-limiting examples.

[0650] Example 1 - Preparation of microcapsules

[0651] Microcapsules containing a so-called "core" phase and a polymeric shell are prepared according to the process detailed below. Raw materials and quantities committed are reported, in % by weight. They are then characterized and / or tested.

[0652] Particle Size Analysis Protocol

[0653] The particle size is then analyzed on a Mastersizer 3000 device. Microparticle dispersions are diluted with water at a ratio of 1:10 in a 1 mL Eppendorf tube. The particle size distribution is then analyzed using the Mastersizer 3000. Volumetric dimensions are reported in the tables below: the cumulative volume distribution of microparticle size is measured and then expressed as a cumulative volume percentage. Dv10 corresponds to the maximum value of 10% by volume of the microparticle sample volume, Dv50 corresponds to the maximum value of 50% by volume of the microparticle sample volume, and Dv90 corresponds to the maximum value of 90% by volume of the microparticle sample volume.

[0654] Process

[0655] In a first step, the components of a C1 pre-composition are mixed together.

[0656] In a second step, the components of a C2 pre-composition are mixed together.

[0657] In a third step, the C1 pre-composition is added to the C2 pre-composition until a C1:C2 = 30:70 ratio is reached, then it is mixed for 2 minutes at 250 rpm allowing the formation of a C1-in-C2 emulsion.In a fourth step, the C1-in-C2 emulsion is added to the C3 pre-composition until it reaches a C1-in-C2:C3 = 10:90 ratio, then it is mixed for 2 minutes at 2000 rpm allowing the formation of a double C1-in-C2-in-C3 monodisperse emulsion.

[0658] In a fifth step, the double C1-in-C2-in-C3 monodisperse emulsion is passed through a UV chamber to cure the droplets of the C1 pre-composition by light curing at a wavelength between 360 nm and 450 nm for 120 seconds, allowing the formation of microcapsules from the C2 precomposition light-curing.

[0659] In a sixth step, the microcapsules obtained by photopolymerization of the C2 pre-composition are extracted from the C3 continuous phase by centrifugation and washed in distilled water in which the continuous phase is soluble. A dispersion of microcapsules at 40% by weight is obtained.

[0660] Example 1.1

[0661] A composition of polymer capsules containing a model oil is prepared. The % is indicated by mass.

[0662]

[0663] Example 2 - Preparation of microcapsules with a fragrance

[0664] A composition of polymer microcapsules containing a fragrance is prepared. The % is indicated by mass.

[0665]

[0666] The microcapsules in example 2 are observed by microscopy. These observations confirm the formation of microcapsules comprising a polymeric shell and a core, as well as effective encapsulation, as core-composition sheets or puddles are not observed outside the polymeric shells.

[0667] The microcapsules are then added to laundry compositions of the invention, as described herein and as in specific example 3.Example 3: exemplary laundry Liquid Composition

[0668]

[0669]

[0670] 2also made with the C12-18 versions

Claims

Claims1. A home care composition comprising:a. one or more home care ingredients; andb. microcapsules, each microcapsule comprising a polymeric core and shell, said core including perfume;wherein each shell comprises at least one polymer comprising at least 50% by weight in relation to the total weight of the polymer of units corresponding to at least a monomer A of the formula (I):CH2=CR1(COO-R2O-[-CO-CH2-CH2-CH2-CH2-CH2-O-]x-H) (I)Where:- R1is a hydrogen atom or methyl group,- R2is a linear or branched alkylene group in C1-C6, preferably an ethylene group, and - x is a real number between 1 and 10, preferably between 1 and 3,or the formula (II):CH2=CR1(CO-[O-CH2-CH2-CH2-CH2-CH2-CO-]X-OH) (II)Where:- R1is a hydrogen atom or methyl group, and- x is a real number between 1 and 10, preferably between 1 and 3.

2. A home care composition according to claim 1 wherein said one or more home care ingredients comprises a surfactant selected from anionic surfactants, non-ionic surfactants, cationic surfactants, amphoteric surfactant or mixtures thereof, preferably anionic surfactants and / or non-ionic surfactants.

3. A home care composition according to claim 1 or claim 2 wherein the surfactant is present at a level from 0.1 % to 70% based on the total weight of the composition.

4. A home care composition according to any preceding claim wherein the surfactant comprises methyl ester ethoxylate.

5. A home care composition according to any preceding claim wherein the surfactant comprises linear alkylbenzene sulfonate.

6. A home care composition according to any preceding claim, wherein the one or more home care ingredients comprises an external structuring system comprising a crystallizable glyceride.

7. A home care composition according to any preceding claim, wherein the one or more home care ingredients comprises a soil release polymer.

8. A home care composition according to any preceding claim, wherein the one or more home care ingredients comprises a polyamine polymer preferably comprising an alkoxylated cationic or zwitterionic polyamine polymer.

9. A home care composition according to any preceding claim wherein the one or more home care ingredients comprises free perfume.

10. A home care composition according to any preceding claim wherein the one or more home care ingredients comprises an enzyme.

11. A home care composition according to any preceding claim, wherein the composition is a liquid contained in a container, said container comprising at least 50% wt. post-consumer recycled resin (PCR) comprising polyolefin or polyester.

12. A home care composition according to any preceding claim, wherein the laundry composition is a laundry liquid composition.

13. A method of laundering a home care substrate, the method comprising contacting a home care substrate with a composition of any one of claims 1 to 12.

14. Use of a home care composition of any one of claims 1 to 12 to launder a home care substrate.

15. A method of making a home care composition, the method comprising the step of including in the composition:a. one or more home care ingredients; andb. microcapsules, each microcapsule comprising a polymeric core and shell, said core including perfume;wherein each shell comprises at least one polymer comprising at least 50% by weight in relation to the total weight of the polymer of units corresponding to at least a monomer A of the formula (I):CH2=CR1(COO-R2O-[-CO-CH2-CH2-CH2-CH2-CH2-O-]x-H) (I)where- R1is a hydrogen atom or methyl group,- R2is a linear or branched alkylene group in C1-C6, preferably an ethylene group, and - x is a real number between 1 and 10, preferably between 1 and 3,or formula (II):CH2=CR1(CO-[O-CH2-CH2-CH2-CH2-CH2-CO-]X-OH) (II)where- R1is a hydrogen atom or methyl group, and- x is a real number between 1 and 10, preferably between 1 and 3.

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