POLI(AMIDA-ESTER) MICROCAPSULAS

Abstract

The present invention relates to a process for preparing a suspension of poly(amide-ester) core-shell microcapsules, characterized in that it comprises the following steps: a) dissolving at least one acyl chloride in a hydrophobic material, preferably a perfume, to form an oily phase; b) dispersing the oily phase obtained in step a) in an aqueous phase comprising an amino compound A or a base to form an oil-in-water emulsion;c) adding to the oil-in-water emulsion obtained in step b) an amino compound B, and d) performing a curing step to form poly(amide-ester) microcapsules in suspension form, wherein a stabilizer is added in step a) and / or in step b), and wherein a polyol is added in step a) and / or in step b) and / or in step c), wherein the polyol is selected from the group consisting of triethanolamine, di(trimethylolpropane), ethylene glycol, glycerol, 1,4-butanediol, 1,2-hexanediol, 1,6-hexanediol, 2-ethyl-2-(hydroxymethyl)propane-1,3-diol (trimethylolpropane, TMP), 2,2-bis(hydroxymethyl)propane-1,3-diol, 2,2'-azanediylbis(ethan-1-ol), 2-aminopropane-1,3-diol, 2-amino-2-methylpropane-1,3-diol, polyphenols or mixtures thereof.;

Description

POLY (AMIDE-ESTER) MICROCAPSULES Field of Invention The present invention relates to a novel process for the preparation of poly(amide-ester) microcapsules. The poly(amide-ester) microcapsules are also an object of the invention. Fragrance compositions and consumer products comprising the capsules, in particular fragranced consumer products in the form of household or personal care products, are also part of the invention. Background of the Invention One of the challenges facing the perfume industry lies in the relatively rapid loss of the olfactory benefit provided by odoriferous compounds due to their volatility, particularly that of top notes. In order to adapt the release rates of volatiles, delivery systems such as microcapsules containing a perfume are needed to protect and then release the core payload upon activation. A key industry requirement for these systems is their ability to survive suspension in challenging bases without dissociating or physically degrading. This is known as delivery system stability. For example, scented personal and household cleaners containing Ref. 325306 High levels of aggressive surfactant detergents pose a major challenge to the stability of microcapsules. The polyurea-polyurethane-based microcapsule suspension is widely used, for example, in the perfume industry, as it provides a long-lasting, pleasant fragrance after application to various substrates. These microcapsules have been extensively described in the prior art (see, for example, WO2007 / 004166 or EP 2300146 from the applicant). Therefore, there is still a need to use alternative microcapsules, without compromising the performance of the microcapsules, particularly in terms of stability in a challenging environment such as a consumer product base, as well as in providing good performance in terms of active ingredient delivery, for example, olfactory performance in the case of perfume ingredients. The present invention proposes a solution to the aforementioned problem, providing new poly(amide-ester) microcapsules. Summary of the Invention Surprisingly, it has now been discovered that core-shell microcapsules encapsulating hydrophobic material or materials can be obtained by reacting an acyl chloride and a polyol with at least one amino compound during interfacial polymerization. 9971 I n / l 7P7 / B / YILI Therefore, the process of the invention provides a solution to the aforementioned problems since it allows the preparation of microcapsules with the desired stability on challenging bases. In a first aspect, the present invention relates to a process for preparing a suspension of poly(amide-ester) core-shell microcapsules comprising the following steps: a) Dissolve at least one acyl chloride in a hydrophobic material, preferably a perfume, to form an oily phase; b) Dispersing the oily phase obtained in step a) in an aqueous phase optionally comprising an amino compound A or a base to form an oil-in-water emulsion; c) Add to the oil-in-water emulsion obtained in step b) an amino compound B d) Perform a curing step to form poly(amide-ester) microcapsules in suspension form, wherein a stabilizer is added in step a) and / or in step b), and wherein a polyol is added in step a) and / or in step b) and / or in step c). A second object of the invention is a poly(amide-ester) core-shell microcapsule comprising: - an oil-based core comprising a hydrophobic material, preferably a perfume, and - a poly(amide-ester) cover. A third object of the invention is a suspension of poly(amide-ester) core-shell microcapsules having at least one poly(amide-ester) core-shell microcapsule, wherein the poly(amide-ester) core-shell microcapsule comprises: - an oil-based core comprising a hydrophobic material, preferably a perfume, and - a poly(amide-ester) cover. A fourth object of the invention is a suspension of poly(amide-ester) core-shell microcapsules obtainable by the process defined above. A fragrance composition comprising: (i) a suspension of microcapsules or microcapsules as defined above, wherein the hydrophobic material comprises a perfume, (ii) at least one ingredient selected from the group consisting of a perfume carrier and a perfume base, (iii) optionally at least one perfume adjuvant, is another object of the invention. Another object of the invention is a consumer product comprising: - an active self-care base, and - microcapsules or suspension of microcapsules as defined above or the perfume composition as defined above, wherein the consumer product is in the form of a personal care composition. Another object of the invention is a consumer product comprising: - an active base of home care or fabric care, and - microcapsules or suspension of microcapsules as defined above or the perfume composition as defined above, wherein the consumer product is in the form of a home care or fabric care composition. Brief Description of the Figures Figure 1 represents an SEM image of microcapsules according to the invention. Figures 2 and 3 represent a TGA measurement of microcapsules according to the invention. Detailed Description of the Invention Unless otherwise stated, percentages (%) are intended to designate a percentage by weight of a composition. Hydrophobic material means any hydrophobic material - a single material or a mixture of materials - that forms a two-phase dispersion when mixed with water. An ingredient is understood to be a single compound or a combination of ingredients. 9971 I n / l 7Π7 / E / YΙΛΙ Perfume or flavoring oil means a single perfume or flavoring compound or a mixture of several perfume or flavoring compounds. A consumer product or final product is understood to be a manufactured product ready to be distributed, sold and used by a consumer. A polyol is understood to be a compound that has at least two hydroxyl functions. For the purposes of clarity, the term dispersion in the present invention means a system in which the particles are dispersed in a continuous phase of a different composition and specifically includes a suspension or an emulsion. A microcapsule, or the like, in the present invention means that the core-shell microcapsules have a particle size distribution in the range of microns (e.g., an average diameter (Dv(50)) between approximately 1 and 3000 microns, preferably between 1 and 1000 microns, more preferably between 1 and 500 microns, and even more preferably between 5 and 50 microns) and comprise a solid polymer-based outer shell and a continuous oily phase and a continuous internal oily phase enclosed by the outer shell. A microcapsule suspension refers to microcapsules dispersed in a liquid. In one formulation, the suspension is an aqueous suspension, meaning the microcapsule is dispersed in an aqueous phase. An amino compound should be understood to be a compound that has at least two reactive amine groups. In the present invention, the terms acyl chloride and acid chloride are used interchangeably. It has been found that poly(amide-ester) core-shell microcapsules with good overall behavior in challenging bases could be obtained when an acyl chloride and a polyol react with at least one amino compound during interfacial polymerization. Process for preparing a suspension of poly(amide-ester) microcapsules Therefore, a first object of the invention is a process for preparing a suspension of poly(amide-ester) core-shell microcapsules comprising the following steps: a) Dissolve at least one acyl chloride in a hydrophobic material, preferably a perfume, to form an oily phase; b) Dispersing the oily phase obtained in step a) in an aqueous phase optionally comprising an amino compound A or a base to form an oil-in-water emulsion; c) Add to the oil-in-water emulsion obtained in step b) an amino compound B; d) Perform a curing step to form poly(amide-ester) microcapsules in suspension form, wherein a stabilizer is added in step a) and / or in step b), and wherein a polyol is added in step a) and / or in step b) and / or in step c). According to one modality, the polyol is added in the oil phase. In one step of the process, an oily phase is formed by mixing at least one hydrophobic material with at least one acyl chloride. According to one embodiment, acyl chloride is selected from the group consisting of benzene-1,2,4-tricarbonyl trichloride, benzene-1,2,4,5-tetracarbonyl tetrachloride, cyclohexane-1,3,5-tricarbonyl trichloride, isophthalyol dichloride, diglycolyl dichloride, terephthaloyl chloride, succinic dichloride, and mixtures thereof. According to a particular modality, acyl chloride is 1,3,5-benzene tricarbonyl chloride. According to a particular modality, acyl chloride has the following formula (I) C / P )(1) Cl \ Cl / n where n is an integer that varies between 1 and 8, preferably between 1 and 6, more preferably between 1 and 4, 9971 I n / l 7Π7 / E / YΙΛΙ And wherein X is a C3 to C6 (n + l)-valent alkyl group, or a C2 to C45 (n + l)-valent hydrocarbon group comprising at least one group selected from (i) to (vi), OOO (i) (¡i) (iü) (iv) (V) (vi) where R is a hydrogen atom or a methyl or ethyl group, preferably a hydrogen atom. According to one modality, if the hydrocarbon group X includes several groups selected from (i) to (vi), each of them is separated by at least one carbon atom from X. The term "hydrocarbon group" means that the group consists of hydrogen and carbon atoms and may be in the form of an aliphatic hydrocarbon, i.e., a linear or branched saturated hydrocarbon (e.g., an alkyl group), a linear or branched unsaturated hydrocarbon (e.g., an alkenyl or alkynyl group), a saturated cyclic hydrocarbon (e.g., a cycloalkyl) or an unsaturated cyclic hydrocarbon (e.g., a cycloalkenyl or cycloalkynyl), or it may be in the form of an aromatic hydrocarbon, i.e., an aryl group, or it may also be in the form of a mixture of the types of groups, e.g., a specific group may comprise a linear alkyl, a branched alkenyl (e.g., having one or more carbon-carbon double bonds), a (poly)cycloalkyl and an aryl moiety, unless a specific limitation to a single type is mentioned.Similarly, in all embodiments of the invention, when a group is referred to as having more than one type of topology (e.g., linear, cyclic, or branched) and / or being saturated or unsaturated (e.g., alkyl, aromatic, or alkenyl), it is also understood to be a group that may include residues having any of the topologies or that are saturated or unsaturated, as explained above. Likewise, in all embodiments of the invention, when a group is referred to as having one type of saturation or unsaturation (e.g., alkyl), it is meant that the group may have any type of topology (e.g., linear, cyclic, or branched) or that it has several residues with different topologies. The term "...a hydrocarbon group, possibly comprising..." means that the hydrocarbon group optionally comprises heteroatoms to form ether, thioether, amine, nitrile, or carboxylic acid groups. These groups may replace a hydrogen atom of the hydrocarbon group and thus be laterally attached to the hydrocarbon, or replace a carbon atom (if chemically possible) of the hydrocarbon group and thus be inserted into the hydrocarbon chain or ring. According to one modality, when group (vi) is present, it is only present in combination with any of groups (i) to (v). According to a particular embodiment, the acyl chloride is selected from the group consisting of propane-1,2,3-tricarbonyl trichloride, cyclohexane-1,2,4,5-tetracarbonyl tetrachloride, 2,2'-disulfanyldisuccinyl dichloride, 2-(2-chloro-2-oxoethyl)sulfanylbutanedioyl dichloride, (4-chloro-4-oxobutanoyl)-L-glutamoyl dichloride, (S)-4-((1,5-dichloro-1,5-dioxopentan-2-yl)amino)-4-oxobutanoic acid, [2-[2,2-bis[(4-chloro-4-oxobutanoyl)oxymethyl]butyl 4-chloro-4-oxobutanoate, [2—[2,2—bis[ (4-chloro-4-oxo-butanoyl)oxymethyl]butoxymethyl]-2-[ (4-chloro-4-oxo-butanoyl)oxymethyl]butyl], 2,2-bis[(2-chlorocarbonylbenzoyl)oxymethyl]butyl 2-chlorocarbonylbenzoate, [2-[2,2-bis[(2-chlorocarbonylbenzoyl)oxymethyl]butoxymethyl]-2-[(2-chlorocarbonylbenzoyl)oxymethyl]butyl 2-chlorocarbonylbenzoate], 4-(2,4,5-trichlorocarbonylbenzoyl)oxybutyl 2,4,5-trichlorocarbonylbenzoate, and mixtures thereof. The weight ratio between the acyl chloride and the hydrophobic material is preferably between 0.01 and 0.09, more preferably between 0.03 and 0.07. Acyl chloride can be dissolved directly in the hydrophobic material or it can be pre-dispersed in an inert solvent such as benzyl benzoate before mixing it with the hydrophobic material, preferably a perfumed oil. According to a particular modality, a polyisocyanate with at least two isocyanate functions is added to the oil phase. Suitable polyisocyanates used according to the invention include aromatic polyisocyanate, aliphatic polyisocyanate, and mixtures thereof. The polyisocyanate comprises at least two, preferably at least three, but may include up to six, or even only four, isocyanate functional groups. According to one particular embodiment, a triisocyanate (3-isocyanate functional group) is used. According to one modality, the polyisocyanate is an aromatic polyisocyanate. The term aromatic polyisocyanate herein means any polyisocyanate comprising an aromatic moiety. Preferably, it comprises a phenyl, toluyl, xylyl, naphthyl, or diphenyl moiety, more preferably a toluyl or xylyl moiety. Preferred aromatic polyisocyanates are biurets, polyisocyanurates, and trimethylolpropane diisocyanate adducts, most preferably comprising one of the specified aromatic moiety members. 9971 I n / l 7P7 / B / YILI cited above. More preferably, the aromatic polyisocyanate is a toluene diisocyanate polyisocyanurate (commercially available from Bayer under the trade name Desmodur® RC), a toluene diisocyanate trimethylolpropane adduct (commercially available from Bayer under the trade name Desmodur® L75), or a xylylene diisocyanate trimethylolpropane adduct (commercially available from Mitsui Chemicals under the trade name Takenate® D-110N). In a more preferred embodiment, the aromatic polyisocyanate is a xylylene diisocyanate trimethylolpropane adduct. According to another definition, the polyisocyanate is an aliphatic polyisocyanate. The term aliphatic polyisocyanate is defined as a polyisocyanate that does not include any aromatic residues. Preferred aliphatic polyisocyanates are a hexamethylene diisocyanate trimer, an isophorone diisocyanate trimer, a hexamethylene diisocyanate trimethylol propane adduct (available from Mitsui Chemicals), or a hexamethylene diisocyanate biuret (commercially available from Bayer under the trade name Bayer Nme 100), with a hexamethylene diisocyanate biuret being the most preferred. According to another embodiment, the at least one polyisocyanate is in the form of a mixture of at least one aliphatic polyisocyanate and at least one aromatic polyisocyanate, both comprising at least two or three isocyanate functional groups, such as a mixture of hexamethylene diisocyanate biuret with a trimethylol propane adduct of xylylene diisocyanate, a mixture of hexamethylene diisocyanate biuret with toluene diisocyanate polyisocyanurate, and a mixture of hexamethylene diisocyanate biuret with a trimethylol propane diisocyanate. Most preferably, it is a mixture of hexamethylene diisocyanate biuret with a trimethylol propane adduct of xylylene diisocyanate. Preferably, when used as a mixture, the molar ratio between aliphatic polyisocyanate and aromatic polyisocyanate is in the range of 80:20 to 10:90. According to one embodiment, at least one polyisocyanate used in the process of the invention is present in amounts representing from 0.1 to 15%, preferably from 0.5 to 10% and more preferably from 0.8 to 6%, and even more preferably from 1 to 3% by weight based on the total amount of oil phase. Polyol Examples of polyols that can be used in the present invention are triethanolamine, di(trimethylolpropane), ethylene glycol, glycerol, 1,4-butanediol, 1,2-hexanediol, 1,6-hexanediol, 2-ethyl-2-(hydroxymethyl)propane-1,3-diol (trimethylolpropane, TMP), 2,2-bis(hydroxymethyl)propane-1,3-diol (pentaerythritol), 2-amino-2-ethylpropane-1,3-diol, 2-amino2-(hydroxymethyl)propane-1,3-diol, 2,2'-azanediylbis(ethan-1), 2-aminopropane-1,3-diol, 2-amino-2-methylpropane-1,3-diol, polyphenols, or a mixture thereof. According to one modality, the polyol is a non-scintable polyol. According to one definition, polyol is not polyvinyl alcohol. According to one definition, polyol is not glycerol. Polyphenols can be simple monocyclic phenols (such as phloroglucinol) or polymers of them (such as condensed tannins, hydrolyzable tannins). Polyphenols can be monocyclic or polycyclic plant polyphenols such as flavonoids, isoflavonoids, neoflavonoids, gallotannins and ellagotannins, catechol and derivatives thereof such as DL-3,4-dihydroxyphenylalanine or DL-DOPA, catecholamines such as 3-hydropogliamine acids such as caffeic acid, dihydrocaffeic acid, protocatechuic acid, chlorogenic acid, isochlorogenic acid, gentisic acid, homogentisic acid, gallic acid, hexahydroxydiphenic acid, ellagic acid, rosmarinic acid or lithospermic acid, phenolic acid derivatives, in particular their esters or their heterosides, curcumin, polyhydroxylated coumarins, polyhydroxylated lignans or neolignans, or a mixture containing one or more plant polyphenols or derivatives thereof, such as silymarin. When using a polyphenol, it is preferably added in step b) (in the aqueous phase) and / or in step c) (once the oil-in-water emulsion has formed). When added in step c), it is preferably added before the addition of amino compound B. According to any embodiment of the invention, the polyol represents between approximately 0.1% and 5%, or even between 0.2% and 3%, by weight, with respect to the total weight of the dispersion obtained after step b). The polyol can be pre-dissolved in an inert solvent, such as ethyl acetate. According to a particular embodiment, the molar ratio between the polyol and the acyl chloride is between 0.01 and 2, preferably between 0.05 and 1.5. Hydrophobic material The hydrophobic material according to the invention can be an inert material such as solvents or active ingredients. When hydrophobic materials are an active ingredient, they are preferably chosen from the group consisting of flavor, flavoring ingredients, perfume, perfume ingredients, nutraceuticals, cosmetics, pest control agents, biocidal actives and mixtures thereof. According to a particular modality, the material 9971 I n / l 7P7 / B / YILI hydrophobic comprises a mixture of a perfume with another ingredient selected from the group consisting of nutraceuticals, cosmetics, pest control agents and biocidal actives. According to a particular modality, the hydrophobic material comprises a mixture of biocidal actives with another ingredient selected from the group consisting of perfumes, nutraceuticals, cosmetics, pest control agents. According to a particular modality, the hydrophobic material comprises a mixture of pest control agents with another ingredient selected from the group consisting of perfumes, nutraceuticals, cosmetics, biocidal actives. According to a particular modality, the hydrophobic material comprises a perfume. According to one particular modality, the hydrophobic material consists of a perfume. According to a particular modality, the hydrophobic material consists of biocidal actives. According to one particular modality, the hydrophobic material consists of pest control agents. By perfume (or perfume oil) we mean here an ingredient or composition that is a liquid at approximately 20°C. According to either of the above definitions, the perfume oil may be a single fragrance ingredient or a mixture of ingredients in the form of a fragrance composition. A fragrance ingredient here is understood to be a compound used primarily to impart or modulate a scent. In other words, for an ingredient to be considered a perfume, it must be recognized by someone skilled in the art as capable of at least imparting or modifying the scent of a composition in a positive or pleasant way, and not merely as having a scent itself.For the purpose of the present invention, perfume oil also includes the combination of perfume ingredients with substances that together improve, enhance, or modify the delivery of the perfume ingredients, such as precursors, emulsions, or perfume dispersions, as well as combinations that impart an additional benefit beyond modifying or imparting a scent, such as long-lasting, bloom-free, odor-counteracting, antimicrobial effect, microbial stability, and pest control. The nature and type of the fragrance ingredients present in the oil phase do not warrant a more detailed description here, which in any case would not be exhaustive. A person experienced in the technique is able to select them based on their general knowledge and according to the intended use or application and the desired organoleptic effect. Generally speaking, these fragrance ingredients belong to chemical classes as varied as alcohols, aldehydes, ketones, esters, ethers, acetates, nitriles, terpenoids, nitrogenous or sulfurous heterocyclic compounds, and essential oils, and the co-fragrance ingredients can be natural or of synthetic origin. Many of these co-ingredients are, in any case, listed in reference texts such as S.'s book.Arctander, Perfume and Flavor Chemicals, 1969, Montclair, New Jersey, USA, or its more recent versions, or in other works of a similar nature, as well as in the abundant patent literature in the field of perfumery. It is also understood that the ingredients may also be compounds known to release various types of perfume compounds in a controlled manner. In particular, one can cite perfumery ingredients that are commonly used in perfume formulations, such as: - Aldehydic ingredients: decanal, dodecanal, 2-methylundecanal, 10-undecenal, octanal, nonanal and / or nonenal; - Herbal ingredients: eucalyptus oil, camphor, eucalyptol, 5-methyltriiotoxy[6.2.1.0~2,7~]undecan-4-one, l-methoxy-3-hexanethiol, 2-ethyl-4,4-dimethyl-l,3-oxatian, 2,2,7 / 8,9 / 10-tetramethylspiro[5.5]undec-8-en-l-one, menthol and / or alpha-pinene; Balsamic ingredients: coumarin, ethyl vanillin and / or vanillin; - Citrus ingredients: dihydromyrcenol, citral, orange oil, linalyl acetate, citronella nitrile, orange terpenes, limonene, lp-menthen-8-yl acetate and / or 1,4(8)-p-mentadiene; Floral ingredients: methyl dihydrojasmonate, linalool, citronellol, phenylethanol, 3-(4-terc-butylphenyl)-2methylpropanal, hexylcinnamic aldehyde, benzyl acetate, benzyl salicylate, tetrahydro-2-isobutyl-4-4-4-hypyrone, beta-pyranol (2) 2-(methylamino)methyl benzoate, (E)-3methyl-4-(2, 6,6-trimethyl-2-cyclohexen-l-yl)-3-butene-2-one, (1E)-1-(2,6,6-trimethyl-2-cyclohexen-l-yl)-l-penten-3-one, 1(2,6,6-trimethyl-l,3-cyclohexadiene-l-yl)-2-butene-l-one, (2E)-1(2,6,6-trimethyl-2-cyclohexen-l-yl)-2-butene-l-one, (2E)-1[2,6,6-trimethyl-3-cyclohexen-l-yl]-2-butene-l-one, (2E)-1(2,6,6-trimethyl-l-cyclohexen-l-yl)-2-buten-l-one, 2,5-dimethyl2-indanmethanol, 2,6,6-trimethyl-3-cyclohexenol-l-carboxylate, 3(4,4-dimethyl-l-cyclohexen-l-yl)propanal, hexyl salicylate, 3,7-dimethyl-l,6-nonadiene-3-ol, 3-(4-isopropylphenyl)-vermetalylpropanal,2 geraniol, p-menth-l-en-8ol, 4-(1,1-dimethylethyl)-1-cyclohexyl acetate, 1,l-dimethyl-2-phenylethyl acetate, 4-cyclohexyl-2-methyl-2-butanol,salicilato de amilo, dihidrojasmonato de metilo alto en cis, 3-metil-5-fenil-l-pentanol, propionato de verdilo, acetato de geranilo, tetrahidrolinalol, cis-7-p-metanol, (S)-2- (1,19971 I n / l 7Π7 / Ε / ΥΙΛΙ dimetilpropoxi)propanoato de propilo, 2-metoxinaftaleno, acetato de 2,2,2-tricloro-l-feniletilo, 4 / 3-(4-hidroxi-4metilpentil)-3-ciclohexeno-l-carbaldehido, aldehido amilcinámico, 8-decen-5-o1 i do, 4 - f eni 1 - 2-bu t anona, acetato de isononilo, acetato de 4 - ( 1, 1-dimethylethyl)-1cyclohexylo, verdigris isobutyrate and / or mixture of methylionone isomers;, Fruity ingredients: gamma-undecalactone, 2,2,5trimethyl-5-pentylcyclopentanone, 2-methyl-4-propyl-l,3oxatiano, 4-decanolida, 2-methyl-pentanoato de etilo, acetate de hexilo, 2-methylbutanoato de etilo, gamma-nonalactona, heptanoato de alilo, isobutirato de 2-phenoxyethyl, 2-methyl1,3-dioxolan-2-ethyl acetate, 3-(3,3 / 1,l-dimethyl-5indanyl)propanal, 1,4-cyclohexanodicarboxylate, diethyl acetate, 3-methyl-2-hexen-l-yl, [3-ethyl-2-oxyranyl]acetate 1-[3,3-dimethylcyclohexyl]ethyl y / o dicarboxylate of diethyl 1,4-cyclohexane; - Green ingredients: 2-methyl-3-hexanona(E)-oxime, 2,4dimethyl-3-cyclohexeno-l-carbaldehyde, 2-terc-butyl1-cyclohexylo acetate, ester acetate, (2-methylbutoxy)acetate de alyl, 4-methyl-3-decen-5-ol, diphenyl ether, (Z)-3-hexen-1-ol y / o 1-(5,5-dimethyl-1-cyclohexen-1-yl)-4-penten-1-one; Musk ingredients: 1,4-dioxa-5,17cycloheptadecanodione, (Z)-4-cyclopentadecen-l-one, 3methylcyclopentadecanone, l-oxa-12-cyclohexadecen-2-one, 1-oxa22 13-cyclohexadecen-2-one, (9Z)-9-cycloheptadecen-l-one, 2—(lS)— 1-[(IR)-3,3-dimethylcyclohexyl]ethoxy}-2-oxoethyl propionato 3methyl-5-cyclopentadecen-l-one, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8hexamethyl-cyclopenta-g-2-benzopyrano, (1S,l'R)-2-[1(3',3'-dimethyl-l'-cyclohexyl)propanoate ethoxy]-2-methylpropyl, oxacyclohexadecan-2-one and / or (1S,1'R)-[1-(3',3'dimethyl-1'-cyclohexyl)ethoxycarbonyl]-methyl propanoate; Wood ingredients: 1-[(1RS,6SR)-2,2,6trimethylcyclohexyl]-3-hexanol, 3,3-dimethyl-5-[(lR)-2,2,3trimethyl-3-cyclopenten-l-yl ]-4-penten-2-ol, 3,4'dimethylspiro[oxirane-2,9'-tricyclo[6.2.1.02·7]undec [4 ] ene, (1ethoxyethoxy)cyclododecane, 2,2,9,11tetramethylspiro[5.5]undec-8-en-l-yl acetate, 1-(octahydro-2,3,8,8tetramethyl-2-naphthalenyl)-1-ethanone, patchouli oil, patchouli oil terpene fractions, clearwood®, (1' R, E)-2-ethyl-4-(2',2',3'-trimethyl-3'-cyclopenten-1'-yl)-2buten-l-ol, 2-ethyl-4-(2,2,3-trimethyl-3-cyclopenten-l-yl)-2buten-l-ol, methyl cedryl ketone, 5-(2,2,3-trimethyl-3cyclopentenyl)-3-methylpentan-2-ol, 1-(2,3,8,8-tetramethyl1,2,3,4,6,7,8,8a-octahydronaphthalen-2-yl)ethane-l-one and / or isobornyl acetate; - Other ingredients (e.g., amber, spiced powder or aqueous): dodecahydro-3a,6,6,9a-tetramethyl-naphtho[2,1b]furan and any of its stereoisomers, heliotropin, anisaldehyde, eugenol, cinnamic aldehyde, clove oil, 9971 I n / l 7Π7 / Ε / ΥΙΛΙ 3-(1,3-benzodioxol-5-il)-2-metilpropanal, 7-metil-2H-l,5benzodioxepin-3(4H)-ona, 2,5,5-trimetil-l,2,3,4,4a,5,6,7octahidro-2-naftalenol, acetato de 1-fenilvinilo, 6-metil-7oxa-l-tia-4-azaespiro[4.4]nonan y / o 3-(3-isopropil-lfenil)butanal. It is also understood that the ingredients may also be known to release in a controlled manner various types of perfume compounds also known as propufume or profragrance.Non-limiting examples of suitable propfumes may include 4-(dodecylthio)-4-(2,6,6-trimethyl-2cyclohexen-l-yl)-2-butanone, 4-(dodecylthium)-4-(2,6,6-trimethyl1-cyclohexene-l-butanone), trans-3-(dodecylthio)-1-(2,6,6trimethyl-3-cyclohexene-l-yl)-1-butanone, 2-phenylethyl oxo(phenyl)acetate, (Z)-hex-3-en-yl oxo (phenyl)acetate, hexadecanoate 3,7-dimethyl-2,6-octadiene-l-yl, bis(3,7-dimethylocta-2,6-dien-l-yl) succinate, (2-((2-methylundec-l-en-lyl)oxy)ethyl)benzene, l-methoxy-4-(3-phene-4-butyl-benzene) (3-methyl-4-fetooxybut-3-en-l-yl)benzene, 1-(((Z)hex-3-en-l-oxy)-2-methylundec-l-eno, (2-((2-methylundec-l-en1-yl)ethoxy)benzene, 2-methi1-1- (octane-3-yloxy)undec-l-eno, l-methoxy-4-(1-phethoxyprop-l-en-2-yl)benzene, l-methyl-4-(1phethoxyprop-l-en-2-yl)benzene, 2-(1-phethoxyprop-l-en-211)naphthaleno, (2-benzene, vinyl) 2-(l-((3,7-dimethyloct-6en-l-yl)oxy)prop-l-en-2-yl)naphthalene or a mixture thereof. The fragrance ingredients may be dissolved in a solvent commonly used in the perfume industry. Preferably, the solvent is not an alcohol. Examples of such solvents include diethyl phthalate, isopropyl myristate, Abalyn® (rosin resins, available from Eastman), benzyl benzoate, ethyl citrate, limonene or other terpenes, or isoparaffins. Preferably, the solvent is highly hydrophobic and highly spherically hindered, such as Abalyn® or benzyl benzoate. Preferably, the perfume comprises less than 30% solvent. More preferably, the perfume comprises less than 20%, and even more preferably, less than 10% solvent; all these percentages are defined by weight relative to the total weight of the perfume. Most preferably, the perfume is solvent-free. The preferred fragrance ingredients are those with high spherical hindrance, particularly those from one of the following groups: - Group 1: perfume ingredients comprising a cyclohexane, cyclohexene, cyclohexanone or cyclohexenone ring substituted with at least one linear or branched Ci to C4 alkyl or alkenyl substituent; Group 2: Perfume ingredients comprising a cyclopentane, cyclopentene, cyclopentanone or cyclopentenone ring substituted with at least one linear or branched C4 to Os alkyl or alkenyl substituent; - Group 3: Perfume ingredients comprising a phenyl ring or perfume ingredients comprising a cyclohexane, cyclohexene, cyclohexanone or cyclohexenone ring substituted with at least one linear or branched Cs to Os alkyl or alkenyl substituent or with at least one phenyl substituent and optionally one or more linear or branched Ci to C3 alkyl or alkenyl substituents; Group 4: Perfume ingredients comprising at least two fused or joined C5 and / or Os rings; - Group 5: perfume ingredients comprising a camphor-type ring structure; Group 6: Perfume ingredients comprising at least one ring structure 07 to 020; - Group 7: perfume ingredients having a logP value greater than 3.5 and comprising at least one tere-butyl or at least one trichloromethyl substituent; Examples of ingredients from each of these groups are: Group 1: 2,4-dimethyl-3-cyclohexene-l-carbaldehyde (origin: Firmenich SA, Geneva, Switzerland), Isocyclocitral, menthone, isomenthone, methyl 2,2-dimethyl-6-methylene-lcyclohexanecarboxylate (origin: Firmenich SA, Geneva, Switzerland), nerone, terpineol, dihydroterpineol, terpenyl acetate, terpenyl acetate dihydroterpene, dipentene, eucalyptol, hexylate, rose oxide, (S)-l,8-p mentadiene-7-ol (origin: Firmen i ch SA, Geneva, 9971 I n / l 7Π7 / Β / YΙΛΙ Suiza), 1 -p-ment eno-4 - o 1, acetate de (lRS,3RS,4SR)-3-pmentañilo, (lR,2S,4R)-4,6,6-trimethyl-biciclo[3.1.1]heptan-2ol, tetrahidro-4-methyl-2-phenyl-2H-pyran (origen: Firmenich SA, Ginebra, Suiza), cyclohexil acetate, cyclanol acetate, diethyldicarboxylate of 1,4-cyclohexane (origen: Firmenich SA, Ginebra, Suiza), (3ARS,6SR,7ASR)perhydro-3, 6dimethyl-benzo[B]furan-2-ona (origen: Firmenich SA, Ginebra, Suiza) , ( (6R)-perhidro-3,6-dimethyl-benzo[B]furan-2-ona (origen: Firmenich SA, Ginebra, Suiza), 2,4,6-trimethyl-4phenyl-1,3-dioxane, 2,4,6-trimethyl-3-cyclohexeno-lcarbaldehido; - Group 2: (E)-3-methyl-5-(2,2,3-trimethyl-3-cyclopentene-1yl)-4-penten-2-ol (origin: Givaudan SA, Vernier, Switzerland), (1' R, E)-2-ethyl-4-(2',2',3'-trimethy1-3'-ciclopentene -1 'c yl)-2buten-l-ol (origin: Firmenich SA, Geneva, Switzerland), (l'R,E)3,3-dimethyl-5-(2',2',3'-trimethyl-3'-cyclopentene-1'-yl)-4penten-2-ol (origin: Firmenich SA, Geneva, Sutiliza), 2-acetapenone, methyl-cis-3-oxo-2-pentyl-lcyclopentane (origin: Firmenich SA, Geneva, Switzerland), 2,2,5trimethyl-5-pentyl-l-cyclopentanone (origin: Firmenich SA, Geneva, Switzerland), 3,3-dimethyl-5-(2,2,3-trimethyl-3-cyclopentene1-yl)-4-penten-2-ol, origin: Firmenich SA, Geneva, Switzerland), 3methyl-5-(2,2,3-trimethyl-3-cyclopenten-l-yl)-2-pentanol (origin, Givaru and Vernier, SA); - Group 3: damasconas, 1-(5,5-dimethyl-l-cyclohexen-l-yl) 9971 I n / l 7Π7 / Ε / ΥΙΛΙ 4-penten-l-ona (origen: Firmenich SA, Ginebra, Suiza), neotalactona ((1' R)-2-[2-(4'-meti1-3'-ciclohexen-1' il)propyl]ciclopentanona), alpha-ionona, beta-ionona, damascenona, mezcla de 1-(5,5-dimethyl-l-cyclohexen-l-yl)-4penten-l-one and 1-(3,3-dimethyl-l-cyclohexen-l-yl)-4-penten-lona (origen: Firmenich SA, Ginebra, Suiza), 1-(2,6,6-trimethyl1-cyclohexen-l-yl)-buten-2-l-ona (origen: Firmenich SA, Ginebra, Suiza), de(1S,1'R)-[1-(3,3'-Dimethyl-1'cyclohexyl)ethoxicarbonyl]methyl propanoate (origen: Firmenich SA, Ginebra, Suiza), 2-terc-butyl-l-cyclohexyl acetate (origen: International Flavors and Fragrances, EUA), 1(2,2,3,6-tetramethyl-cyclohexyl)-3-hexanol (origen: Firmenich SA, Ginebra, Suiza), trans-1-(2,2,6-trimethyl-l-cyclohexyl)-3hexanol (origen: Firmenich SA, Ginebra, Suiza), (E)-3-methyl-4(2,6,6-trimethyl-2-cyclohexen-l-yl)-3-buten-2-ona, terpenyl isobutyrate, (4-(1,1-dimethylethyl)-1-cyclohexyl acetate (origen: Firmenich SA, Ginebra, Suiza), 8methoxi-lp-menteno, (1S,lR)-2-[1-(3',3'-dimethyl-1'cyclohexyl)ethoxy]-2-methylpropyl, origin: Firmenich SA, Ginebra, Suiza), para-terc-butylcyclohexanone, mentenothiol, 1methyl-4-(4-methyl-3-pentenyl)-3-cyclohexeno-l-carbaldehyde, cyclohexylpropionate de alylo, cyclohexilo salicylate, methyl carbonate de 2-methoxy-4-methylphenyl, 2-methoxy-4methylphenyl carbonate de ethyl, 4-ethyl-2 carbonate 9971 I n / l 7Π7 / Ε / ΥΙΛΙ methoxyphenyl methyl; - Group 4: Methyl cedryl ketone (origin: International Flavors and Fragrances, USA), a mixture of (1RS,2SR6RS,7RS,8SR)-tricyclo[5.2.1.0~2,6~]dec-3-en-8-yl 2-methylpropanoate and (1RS,2SR,6RS,7RS,8SR)-tricyclo[5.2.1.0~2,6~]dec-4-en-8-yl 2-methylpropanoate, vetiverol, vetiverone, 1-(octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)-1-ethanone (origin: International Flavors and Fragrances, USA), (5RS,9RS,10SR)-2,6,9,10-tetramethyl-l-oxaspiro[4.5]deca-3,6diene and the isomer (5RS,9SR,1ORS), 6-ethyl-2,10,10-trimethyl-loxaspiro[4.5]deca-3,6-diene, 1,2,3,5,6,7-hexahydro-1,1,2,3,3-pentamethyl-4-indenone (origin: International Flavors and Fragrances, USA), a mixture of 3-(3,3-dimethyl-5-indanyl)propanal and 3-(1,1-dimethyl-5-indanyl)propanal, origin: Firmenich SA, Geneva, Switzerland), 3',4-dimethyltricyclo[6.2.1.0(2,7)]undec-4-ene-9-spiro-2'-oxirane (origin: Firmenich SA, Geneva, Switzerland), 9 / 10-ethyldiene-3-oxatricyclo[6.2.1.0(2,7)]undecane, perhydro-5,5,8-trimethyl-2-naphthalenyl acetate (origen: Firmenich SA, Geneva, Switzerland), octalinol, (dodecahydro-3a,6,6,9a-tetramethyl-naphtho[2,1b]furan (origen: Firmenich SA, Geneva, Switzerland), tricyclo[5.2.1.0(2,6)]dec-3-en-8-yl acetate and tricyclo[5.2.1.0(2,6)]dec-4-en-8-yl acetate as well as tricyclo[5.2.1.0(2,6)]dec-3-en-8-yl propanoate and tricyclo[5.2.1.0(2,6)]dec-4-en-8-yl propanoate, (+)-(lS,2S,3S)-2,6,6-trimethy1bicyclo[3.1.1]heptane-3-espiro-2'-cyclohexen-4'-ona;. - Group 5: alcanfor, borneol, isobornyl acetate, 8-isopropyl-6-methyl-bicyclo[2.2.2]oct-5-eno-2-carbaldehyde, pinene, campheno, 8-methoxycedrano, (8-methoxy-2,6,6,8tetramethyl-triciclo[5.3.1.0(1,5)]undecane (origen: Firmenich SA, Geneva, Switzerland), cedreno, cedrenol, cedrol, mezcla de 9etiliden-3-oxatriciclo[6.2.1.0(2,7)]undecan-4-ona y 10etiliden-3-oxatriciclo [6.2.1.0 (2, 7) ] undecan-4-ona, origen: Firmenich SA, Geneva, Switzerland), 3-methoxy-7,7-dimethyl-10-methylenebicyclo[4.3.1]decane (origen: Firmenich SA, Ginebra, Suiza); - Group 6: (trimethyl-13-oxabicyclo-[10.1.0]-trideca-4,8-diene (origin: Firmenich SA, Geneva, Switzerland), Ambretolide LG ((E)-9-hexadecen-16-olide (origin: Firmenich SA, Geneva, Switzerland), pentadecenolide (origin: Firmenich SA, Geneva, Switzerland), muscenone (3-methyl-(4 / 5)-cyclopentadecenone, origin: Firmenich SA, Geneva, Switzerland), 3-methylcyclopentadecanone (origin: Firmenich SA, Geneva, Switzerland), pentadecanolide (origin: Firmenich SA, Geneva, Switzerland), cyclopentadecanone (origin: Firmenich SA, Geneva, Switzerland), 1-ethoxyethoxy)cyclododecane (origin: Firmenich SA, Geneva, Switzerland), 1-4,dioxacycloheptadecane-5,17-dione, 4,8cyclododecadien-1-one; Group 7: (+-)-2-methyl-3-[4-(2-methyl-2-propanyl-2propanyl)phenyl]propanal (origin: Givaudan SA, Vernier, Switzerland), 2,2,2-trichloro-l-phenylethyl acetate. Preferably, the perfume comprises at least 30%, preferably at least 50%, and more preferably at least 60% of ingredients selected from Groups 1 to 7, as defined above. More preferably, the perfume comprises at least 30%, and preferably at least 50% of ingredients from Groups 3 to 7, as defined above. Most preferably, the perfume comprises at least 30%, and preferably at least 50% of ingredients from Groups 3, 4, 6, or 7, as defined above. According to another particular modality, the perfume comprises at least 30%, preferably at least 50%, more preferably at least 60% of ingredients that have a logP greater than 3, preferably greater than 3.5 and even more preferably greater than 3.75. Preferably, the perfume used in the invention contains less than 10% by weight of primary alcohols, less than 15% by weight of secondary alcohols, and less than 20% by weight of tertiary alcohols. Advantageously, the perfume used in the invention contains no primary alcohols and contains less than 15% of secondary and tertiary alcohols. According to one modality, the oil phase (or oil-based core) comprises: - 25-100% by weight of a perfume oil comprising at least 15% by weight of high-impact perfume raw materials having a Log T <-4, and - 0-75% by weight of a density having a density greater than 1.07 g / cm3. The nature of high-impact perfume raw materials having a Loq T <-4 and a density equilibrium material having a density greater than 1.07 g / cm3 is described in WO2018115250, the contents of which are included for reference. The term biocide refers to a chemical substance capable of killing living organisms (e.g., microorganisms) or reducing or preventing their growth and / or accumulation. Biocides are commonly used in medicine, agriculture, forestry, and industry, where they prevent contamination of, for example, water, agricultural products (including seeds), and pipelines. A biocide can be a pesticide, which includes fungicides, herbicides, insecticides, algaecides, molluscicides, acaricides, and rodenticides; and / or an antimicrobial, such as a germicide, antibiotic, antibacterial, antiviral, antifungal, antiprotozoal, and / or antiparasitic. As used in this document, a pest control agent refers to a substance that repels or attracts pests, or that reduces, inhibits, or promotes their growth, development, or activity. Pests refer to any living organism—animal, plant, or fungal—that is invasive or troublesome to plants or animals. Pests include insects, particularly arthropods, mites, spiders, fungi, weeds, bacteria, and other microorganisms. According to a particular embodiment, the hydrophobic material is free of any active ingredient (such as perfume). According to this particular embodiment, it is understood to preferably consist of hydrophobic solvents, preferably selected from the group consisting of isopropyl myristate, triglycerides (e.g., Neobee® MCT oil, vegetable oils), D-limonene, silicone oil, mineral oil, and mixtures thereof, with optionally hydrophilic solvents, preferably selected from the group consisting of 1,4-butanediol, benzyl alcohol, triethyl citrate, triacetin, benzyl acetate, ethyl acetate, propylene glycol (1,2-propanediol), 1,3-propanediol, dipropylene glycol, glycerol, glycol ethers, and mixtures thereof. According to any embodiment of the invention, the hydrophobic material represents between 10% and 60% w / w, or even between 15% and 45% w / w, by weight, with respect to the total weight of the dispersion obtained after step b). According to a particular modality, the oily phase consists essentially of acyl chloride, a polyol, and a perfume or flavoring oil. In another step of the process according to the invention, the oily phase of step a) is dispersed in an aqueous solution optionally comprising an amino compound A and / or a base to form an oil-in-water emulsion. The average droplet size of the emulsion is preferably between 1 and 1000 microns, more preferably between 1 and 500 microns, and even more preferably between 5 and 50 microns. By amino compound A should be understood a compound capable of reacting with acyl chloride to form an amide bond. When present, amino compound A may be selected from the group consisting of L-lysine, L-lysine ethyl ester, guanidine carbonate, chitosan, 3-aminopropyltriethoxysilane, and mixtures thereof, and, when present, the base is preferably NaOH. According to one particular embodiment, amino compound A is L-lysine. When present, the amino compound A or base is preferably added in an amount between 0.1% and 10% by weight based on the dispersion obtained after step b), more preferably between 0.5% and 5% by weight. According to the invention, a stabilizer is added to the aqueous phase and / or the oil phase to stabilize the emulsion. The stabilizer can be an ionic or non-ionic emulsifier or a colloidal stabilizer. The stabilizer can be a molecular emulsifier (standard emulsion) or a solid particle emulsifier (Pickering emulsion). Stabilizer and emulsifier are used interchangeably in the present invention. According to one modality, the stabilizer is chosen from the group consisting of gum arabic, modified starch, polyvinyl alcohol, PVP (polyvinylpyrrolidone), CMC (carboxymethylcellulose), anionic polysaccharides, acrylamide copolymer, inorganic particles, proteins, and mixtures thereof. According to one modality, the stabilizer is selected from the group consisting of gum arabic, modified starch, polyvinyl alcohol, PVP, CMC, anionic polysaccharides, acrylamide copolymer, inorganic particles, protein such as soy protein, rice protein, whey protein, egg white albumin, sodium caseinate, gelatin, bovine serum albumin, hydrolyzed soy protein, hydrolyzed sericin, pseudocollagen, silk protein, sericin powder, and mixtures thereof. When the stabilizer is added to the oil phase, it is preferably chosen from the group consisting of proteins such as soy protein, rice protein, whey protein, egg white albumin, sodium caseinate, gelatin, bovine serum albumin, and soy protein. 9971 I n / l 7P7 / E / YILI hydrolyzed, hydrolyzed sericin, pseudocollagen, silk protein, sericin powder and mixtures thereof. When added to the oil phase, the stabilizer can be pre-dispersed in an inert solvent such as benzyl benzoate. When the stabilizer is added to the aqueous phase, it is preferably chosen from the group consisting of gum arabic, modified starch, polyvinyl alcohol, PVP, CMC, anionic polysaccharides, acrylamide copolymer, inorganic particles, protein such as soy protein, rice protein, whey protein, egg white albumin, sodium caseinate, gelatin, bovine serum albumin, hydrolyzed soy protein, hydrolyzed sericin, pseudocollagen, silk protein, sericin powder, and mixtures thereof. According to any of the preceding embodiments of the present invention, the dispersion comprises between approximately 0.01% and 3.0% of at least one stabilizer, the percentage being expressed on a w / w basis with respect to the total weight of the dispersion obtained after step b). In yet another aspect of the invention, the dispersion comprises between approximately 0.05% and 1.0% of at least one stabilizer. In yet another aspect of the invention, the dispersion comprises between approximately 0.1% and 0.8% of at least one stabilizer. In another step of the process according to the invention, an amino compound B is added to the oil-in-water emulsion obtained in step b). An amino compound B should be understood to be a compound capable of reacting with acyl chloride to form an amide bond. As non-limiting examples, amino compound B is selected from the group consisting of a xylenediamine, 1,2-diaminocyclohexane, 1,4-diaminocyclohexane, L-lysine, L-lysine ethyl ester, Jeffamine® (O,O'-Bis(2-aminopropyl)polypropylene glycol-block-polyethylene glycol-block-polypropylene glycol), ethylenediamine, diethylenetriamine, spermine, spermidine, polyamidoamine (PAMIM), guanidine carbonate, chitosan, tris-(2-aminoethyl)amine, 3-aminopropyltriethoxysilane, L-arginine, an amine having a disulfide bond such as cystamine, cystamine hydrochloride, cystine, cystine hydrochloride, cystine dialkyl ester, cystine dialkyl ester hydrochloride, and mixtures thereof. According to one modality, the amino compound B is an amine having a disulfide bond and is chosen from the group consisting of cystamine, cystamine hydrochloride, cystine, cystine hydrochloride, cystine dialkyl ester, cystine dialkyl ester hydrochloride, and mixtures thereof. According to another modality, the amino compound B is selected from the group consisting of xylylenediamine, 1,2-diaminocyclohexane, 1,4-diaminocyclohexane, L-lysine, L-lysine ethyl ester, Jeffamine® (O,O'-Bis(2-aminopropyl)polypropylene glycol-block-polyethylene glycol-block-polypropylene glycol), ethylenediamine, diethylenetriamine, spermine, spermidine, polyamidoamine (PAMAM), guanidine carbonate, chitosan, tris-(2-aminoethyl)amine, 3-aminopropyltriethoxysilane, L-arquinine, or mixtures thereof. According to a particular modality, amino compound A and amino compound B are equal. According to another particular modality, amino compound A and amino compound B are different. According to one embodiment, the weight ratio between amino compound A and amino compound B is between 0.5 and 25, preferably between 1.3 and 7. The process of the invention is notably characterized by the fact that a polyol and an acyl chloride react with at least one amino compound during the process. In fact, without adhering to any specific theory, the inventors observed that this combination leads to stable microcapsules in consumer goods. The amount of amino compound B used is typically adjusted so that the molar ratio between the NH2 functional groups of amino compound B and COCl of acyl chloride is between 0.01 and 7.5, preferably between 0.1 and 3.0. Depending on the method, a base is added to adjust the pH. Non-limiting examples include guanidine carbonate, sodium bicarbonate, or triethanolamine. The base is preferably added in an amount between 0.1% and 10% by weight based on the dispersion, more preferably between 0.5% and 5% by weight. This is followed by a curing step (d) which results in microcapsules in the form of a suspension or liquid dispersion. To enhance the kinetics, this step can be carried out at a temperature between 50 and 130°C, possibly under pressure, for 15 minutes to 8 hours. No specific action is required to induce polymerization between acyl chloride and amino compounds. Optional outer coating: According to a particular embodiment of the invention, at the end of step d) or during step d) a polymer selected from the group consisting of a non-ionic polysaccharide, a cationic polymer and mixtures thereof can also be added to the suspension of the invention to form an outer coating of the microcapsule. Nonionic polysaccharide polymers are well known to a person experienced in the technique and are 0071 i η / ι znz / E / YiAi are described, for example, in WO2012 / 007438 page 29, lines 1 to 25 and in WO2013 / 026657 page 2, lines 12 to 19 and page 4, lines 3 to 12. The preferred nonionic polysaccharides are selected of the gue group consists of carob gum, xyloglucan, guar gum, hydroxypropyl guar, hydroxypropyl cellulose and hydroxypropyl methyl cellulose. Cationic polymers are well known to those skilled in the art. Preferred cationic polymers have cationic charge densities of at least 0.5 meq / g, more preferably at least approximately 1.5 meq / g, but also preferably less than approximately 7 meq / g, and more preferably less than approximately 6.2 meq / g. The cationic charge density of cationic polymers can be determined by the Kjeldahl method as described in the United States Pharmacopeia under Chemical Tests for the Determination of Nitrogen. Preferred cationic polymers are selected from those containing units comprising primary, secondary, tertiary, and / or quaternary amine groups, which may be part of the main polymer chain or supported by a side substituent directly attached to it. The weight-average molecular weight (Mw) of the cationic polymer is preferably between 10,000 and 3.5 M Dalton, more preferably between 50,000 and 1.5 M Dalton. According to a particular embodiment, cationic polymers based on acrylamide, methacrylamide, N-vinylpyrrolidone, quaternized N,N-dimethylaminomethacrylate, diallyldimethylammonium chloride, quaternized vinylimidazole (3-methyl-l-vinyl-lH-imidazole-3-io chloride), vinylpyrrolidone, acrylamidopropyltrimonium chloride, cassia hydroxypropyltrimonium chloride, guar hydroxypropyltrimonium chloride or 2-hydroxypropyltrimethylammonium polygalactomannan ether chloride, starch hydroxypropyltrimonium chloride and cellulose hydroxypropyltrimonium chloride will be used.Preferably, the copolymers shall be selected from the group consisting of polyquaternium-5, polyquaternium-6, polyquaternium-7, polyquaternium-10, polyquaternium-11, polyquaternium-16, polyquaternium-22, polyquaternium-28, polyquaternium-43, polyquaternium-44, polyquaternium-46, cassia hydroxypropyltrimonium chloride, guar hydroxypropyltrimonium chloride or 2-hydroxypropyltrimethylammonium polygalactomannan ether chloride, starch hydroxypropyltrimonium chloride and cellulose hydroxypropyltrimonium chloride. Specific examples of commercially available products include Saleare® SC60 (acrylamide acrylamide acrylamide cationic copolymer, source: BASF) or Luviquat®, such as PQ 11N, FC 550 or Style (polyquaternium-11 to 68 or vinylpyrrolidone quaternized copolymers, source: BASF), or also Jaguar® (C13S or C17, source: Rhodia). According to any of the preceding embodiments of the invention, an amount of polymer described above is added, comprising between approximately 0% and 5% w / w, or even between approximately 0.1% and 2% w / w, the percentage being expressed in w / w based on the total weight of the suspension obtained after step d). A person skilled in the art will clearly understand that only a portion of the added polymers will be incorporated / deposited on the microcapsule coating. Another object of the invention is a process for preparing a microcapsule powder comprising the steps defined above and an additional step (e) consisting of subjecting the suspension obtained in step (d) to drying, such as spray drying, to provide the microcapsules as such, i.e., in powder form. It is understood that any standard method known to a person skilled in the art for performing such drying is also applicable. In particular, the suspension may be spray dried, preferably in the presence of a polymeric carrier material such as polyvinyl acetate, polyvinyl alcohol, dextrins, natural or modified starch, vegetable gums, pectins, xanthan gums, alginates, carrageenans, or cellulose derivatives, to provide microcapsules in powder form. However, other drying methods can also be cited, such as extrusion, plating, spray granulation, fluidized bed or even room temperature drying using materials (carrier, desiccant) that meet the specific criteria described in W02017 / 134179. According to a particular modality, the carrier material contains free perfume oil that may be the same as or different from the perfume of the microcapsule core. Multi-capsule system According to one embodiment, the microcapsules of the invention (first type of microcapsules) can be used in combination with a second type of microcapsules. Another object of the invention is a microcapsule delivery system comprising: the microcapsules of the present invention as a first type of microcapsules, and - a second type of microcapsules, wherein the first type of microcapsules and the second type of microcapsules differ in their hydrophobic material and / or their wall material and / or their coating material. Poly(amide-ester) microcapsule Another object of the invention is a suspension of poly(amide-ester) microcapsules obtainable by the process described above. The specific composition of the poly(amide9971 I n / l 7P7 / E / YILI ester) wall is key to obtaining microcapsules that exhibit the desired stability in the product base (e.g., it effectively counteracts the extraction of the perfume by the surfactants in the consumer product). Therefore, another object of the invention is a poly(amide-ester) core-shell microcapsule or a suspension of poly(amide-ester) core-shell microcapsules having at least one poly(amide-ester) core-shell microcapsule, the poly(amide-ester) core-shell microcapsule comprising: - an oil-based core comprising a hydrophobic material, preferably a perfume, and - a poly(amide-ester) cover. According to one embodiment, the poly(amidaester) cover comprises: - optionally a stabilizer, preferably 0% to 75% w / w of a stabilizer, - an acyl chloride, preferably from 10% to 90% w / w, more preferably from 23% to 90% of an acyl chloride, - optionally an amino compound A, preferably 0 to 50%, more preferably 5% and 50% w / w of an amino compound A, - an amino compound B, preferably 1% to 40% w / w of an amino compound B, and - a polyol, preferably from 1 to 60% w / w of a polyol, 9971 I n / l 7Π7 / Β / YILI based on the total weight of the cover. It should be understood that the sum of all components is 100%. A poly(amide-ester) shell comprising an acyl chloride, at least one amino compound, and a polyol is understood to mean that the poly(amide-ester) shell is derived from an acyl chloride, at least one amino compound, and a polyol. In other words, the poly(amide-ester) shell comprises the reaction product of an acyl chloride with at least one amino compound and a polyol. According to one embodiment, when a stabilizer is present in the shell, the poly(amide-ester) shell is understood to be derived from an acyl chloride, at least one amino compound, a polyol, and a stabilizer. In other words, according to this embodiment, the poly(amide-ester) shell comprises the reaction product of an acyl chloride with at least one amino compound, a stabilizer, and a polyol. Another object of the invention is a solid particle comprising: a carrier material, preferably a polymeric carrier material selected from the group consisting of polyvinyl acetate, polyvinyl alcohol, dextrins, natural or modified starch, vegetable gums, pectins, xanthan gums, alginates, carrageenans, cellulose derivatives and mixtures of 9971 I n / l 7Π7 / Ε / ΥΙΛΙ the same, and - microcapsules as defined above trapped in the carrier material, and - optionally free perfume introduced into the carrier material. The solid particle as defined above and the microcapsule powder can be used interchangeably in the present invention. The above modalities described with respect to the nature of the hydrophobic material, the polyol, the stabilizer, the acyl chloride, the amino compound A and the amino compound B also apply to poly(amide-ester) microcapsules. According to a particular modality, when the amino compound A is present, the amino compounds A and B included in the poly(amide-ester) microcapsule shell are different. The composition of the coating can be quantified, for example, by elemental analysis and identified by solid-state NMR, which are two techniques well known to people experienced in the field. Fragrance composition / consumer products The microcapsules of the invention can be used in combination with active ingredients. Therefore, an object of the invention is a composition comprising: CC7I I Π / l 7Π7 / Β / YΙΛΙ (i) microcapsules or microcapsule suspension as defined above; (ii) an active ingredient, preferably selected from the group consisting of a cosmetic ingredient, skin care ingredient, perfume ingredient, flavor ingredient, odor-counteracting ingredient, bactericidal ingredient, fungicidal ingredient, pharmaceutical or agrochemical ingredient, disinfectant ingredient, insect repellent or attractant and mixtures thereof. The microcapsules of the invention can be used for the preparation of flavoring or aromatizing compositions that are also the subject of the invention. The capsules of the invention show very good performance in terms of stability in challenging environments. Another object of the present invention is a perfume composition comprising: (i) microcapsules or suspension of microcapsules as defined above, wherein the oil comprises a perfume; (ii) at least one ingredient selected from the group consisting of a perfumery carrier, a perfumery co-ingredient and mixtures thereof; (iii) optionally at least one perfumery adjuvant. As a liquid carrier for perfumery, one can cite, such as 0071 i η / ι znz / E / YiAi Non-limiting examples include an emulsifying system, i.e., a solvent and a surfactant system, or a solvent commonly used in perfumery. A detailed description of the nature and type of solvents commonly used in perfumery cannot be exhaustive. However, non-limiting examples may include solvents such as dipropylene glycol, diethyl phthalate, isopropyl myristate, benzyl benzoate, 2-(2-ethoxyethoxy)-1-ethanol, or ethyl citrate, which are the most commonly used.For compositions comprising both a fragrance carrier and a fragrance co-ingredient, other suitable fragrance carriers besides those previously specified may also include ethanol, water / ethanol mixtures, limonene or other terpenes, isoparaffins such as those known under the registered trademark Isopar® (origin: Exxon Chemical), or glycol ethers and glycol ether esters such as those known under the trade name Dowanol® (origin: Dow Chemical Company). A fragrance co-ingredient herein is understood to be a compound used in a fragrance preparation or composition to impart a hedonic effect and that is not a microcapsule as previously defined. In other words, for a co-ingredient to be considered a fragrance, it must be recognized by a person skilled in the art as capable of at least imparting or modifying, in a positive or agreeable way, the scent of a composition, and not merely as having a scent. The nature and type of the fragrance co-ingredients present in the fragrance composition do not warrant a more detailed description here, which in any case would not be exhaustive. An experienced person in the technique will select them based on their general knowledge and according to the intended use or application and the desired organoleptic effect. Generally speaking, these fragrance co-ingredients belong to chemical classes as varied as alcohols, lactones, aldehydes, ketones, esters, ethers, acetates, nitriles, terpenoids, nitrogenous or sulfurous heterocyclic compounds, and essential oils, and the fragrance co-ingredients can be of natural or synthetic origin. Many of these co-ingredients are, in any case, listed in reference texts such as S.'s book.Arctander, Perfume and Flavor Chemicals, 1969, Montclair, New Jersey, USA, or its more recent versions, or in other works of a similar nature, as well as in the abundant patent literature in the field of perfumery. It is also understood that co-ingredients may also be compounds known to release various types of perfume compounds in a controlled manner. By perfumery adjuvant, we mean here an ingredient capable of imparting an additional benefit, such as color, a particular lightfastness, chemical stability, etc. A detailed description of the nature and type of adjuvant commonly used in perfume bases cannot be exhaustive, but it should be mentioned that the ingredients are well known to a person experienced in the technique. Preferably, the perfume composition according to the invention comprises between 0.01 and 30% by weight of microcapsules as defined above. The microcapsules of the invention can be advantageously used in many fields of application and in consumer products. The microcapsules can be used in liquid form for liquid consumer products, as well as in powder form for powdered consumer products. According to a particular modality, the consumer product as defined above is liquid and comprises: a) from 2 to 65% by weight, with respect to the total weight of the consumer product, of at least one surfactant; b) water or a hydrophilic organic solvent miscible in water; and c) microcapsule suspension or microcapsules as defined above, d) optionally non-encapsulated perfume. According to a particular modality, the product of 9971 I n / l 7P7 / E / YILI consumption as defined above is in powder form and comprises: a) from 2 to 65% by weight, with respect to the total weight of the consumer product, of at least one surfactant; b) microcapsule powder as defined above. c) optionally powdered perfume different from the microcapsules defined above. In the case of microcapsules containing a perfume oil-based core, the products of the invention can be used particularly in perfumed consumer products such as fine fragrances or functional perfumery. Functional perfumery includes, in particular, personal care products such as hair care, body wash, skin care, and hygiene products, as well as household products such as laundry and air care products. Accordingly, another object of the present invention is a perfumed consumer product comprising, as a perfume ingredient, the microcapsules defined above or a perfume composition as defined above.The perfume element of the consumer product may be a combination of perfume microcapsules as defined above and free or unencapsulated perfume, as well as other types of perfume microcapsules than those described herein. In particular, a liquid consumer product comprising: a) from 2 to 65% by weight, with respect to the total weight of the consumer product, of at least one surfactant; b) water or a hydrophilic organic solvent miscible in water; and c) a perfume composition as defined above is another object of the invention. Also, a powdered consumer product comprising (a) from 2 to 65% by weight, with respect to the total weight of the consumer product, of at least one surfactant; and (b) a perfume composition as defined above is part of the invention. Therefore, the microcapsules of the invention can be added as such or as part of a perfume composition of the invention in a perfumed consumer product. For clarity, it should be mentioned that a perfumed consumer product is understood to be a consumer product that is expected to provide, among other benefits, a perfumed effect on the surface to which it is applied (e.g., skin, hair, textiles, paper, or household surfaces) or in the air (air freshener, deodorant, etc.). In other words, a perfumed consumer product according to the invention is a manufactured product that includes a functional formulation, also called a base, along with beneficial agents, including an effective quantity of microcapsules according to the invention. The nature and type of the other components of the perfumed consumer product do not warrant a more detailed description here, which in any case would not be exhaustive. A person skilled in the art can select them based on their general knowledge and in accordance with the nature and desired effect of the product. Basic formulations of consumer products into which the microcapsules of the invention can be incorporated can be found in the extensive literature relating to such products. These formulations do not warrant a detailed description here, which in any case would not be exhaustive. A person skilled in the art of formulating consumer products can perfectly select the appropriate components based on their general knowledge and the available literature. Non-limiting examples of a suitable scented consumer product may include a perfume, such as a fine perfume, cologne, aftershave lotion, or body spray; a fabric care product, such as a liquid or solid detergent, tablets and capsules, fabric softener, dryer sheet, fabric refresher, ironing water, or bleach; a personal care product, such as a hair care product (e.g., shampoo, hair conditioner, coloring preparation, or hairspray), a cosmetic preparation (e.g., vanishing cream, body lotion, or deodorant or antiperspirant), or a skin care product (e.g., perfumed soap, shower or bath foam, body gel, oil or gel, bath salts, or a hygiene product); an air care product, such as an air freshener or a ready-to-use powder air freshener;or a household care product, such as multi-purpose cleaners, liquid or powder dishwashing products or tablets, toilet cleaners or products for cleaning various surfaces, for example, sprays and wipes for the treatment / refreshing of textiles or hard surfaces (floors, tiles, stone floors, etc.); a hygiene product such as sanitary napkins, diapers, toilet paper.; Another object of the invention is a consumer product comprising: - an active self-care base, and - microcapsules or suspension of microcapsules as defined above or the perfume composition as defined above, wherein the consumer product is in the form of a personal care composition. The active base for personal care products into which the microcapsules of the invention can be incorporated can be found in the extensive literature relating to such products. These formulations do not guarantee a detailed description here, which, in any case, would not be exhaustive. Those experienced in the art of formulating consumer products can perfectly select the appropriate components based on their general knowledge and the available literature. The personal care composition is preferably chosen from the group consisting of a hair care product (e.g., a shampoo, hair conditioner, a coloring preparation or hairspray), a cosmetic preparation (e.g., a fading cream, body lotion or a deodorant or antiperspirant), or a skin care product (e.g., a perfumed soap, shower or bath foam, bath gel, oil or gel, bath salts or a hygiene product); Another object of the invention is a consumer product comprising: - an active base of home care or tissue care, and - microcapsules or microcapsule suspension as defined above or the perfume composition as defined above, wherein the consumer product is in the form of a CC7I I Π / l 7Π7 / Β / YΙΛΙ composition for home care or for fabric care. In the extensive literature relating to such products, one can find an active base for household or fabric care into which the microcapsules of the invention can be incorporated. These formulations do not warrant a detailed description here, which, in any case, would not be exhaustive. A person experienced in the art of formulating consumer products can perfectly select the appropriate components based on their general knowledge and the available literature. Preferably, the consumer product shall contain between 0.1 and 15% by weight, more preferably between 0.2 and 5% by weight, of the microcapsules of the present invention. These percentages are defined by weight with respect to the total weight of the consumer product. Of course, the above concentrations may be adjusted according to the desired beneficial effect in each product. Fabric softener An object of the invention is a consumer product in the form of a fabric softening composition comprising: - an active fabric softening base; preferably selected from the group consisting of quaternary dialkyl ammonium salts, quaternary dialkyl ammonium ester salts (esterquats), Hamburg esterquat (HEQ), TEAQ (triethanolamine quat), silicones and mixtures thereof, preferably in an amount between 85 and 99.95% by weight based on the total weight of the composition, - a suspension or microcapsules as defined above, preferably in an amount between 0.05 and 15% by weight, more preferably between 0.1 and 5% by weight based on the total weight of the composition. Liquid detergent An object of the invention is a consumer product in the form of a liquid detergent composition comprising: - a liquid detergent active base; preferably the liquid in the group consisting of anionic surfactant such as alkylbenzenesulfonate (ABS), secondary alkyl sulfonate (SAS), primary alcohol sulfate (PAS), lauryl ether sulfate (LES), methyl ester sulfonate (MES) and non-ionic surfactant such as alkylamines, alkanolamide, poly(ethylene glycol) alcohol ether, alcohol ethoxylate (FAE), ethylene oxide (EO) and propylene oxide (PO) copolymers, amine oxides, alkyl polyglucosides, alkyl polyglucosamides, preferably in an amount between 85 and 99.95% by weight based on the total weight of the composition, - a suspension or microcapsules of microcapsules as defined above, preferably in an amount between 0.05 and 15% by weight, more preferably between 0.1 and 5% by weight based on the total weight of the composition. Solid detergent An object of the invention is a consumer product in the form of a solid detergent composition comprising: - a solid detergent active base; preferably selected from the group consisting of anionic surfactant such as alkylbenzenesulfonate (ABS), secondary alkyl sulfonate (SAS), primary alcohol sulfate (PAS), lauryl ether sulfate (LES), methyl ester sulfonate (MES) and non-ionic surfactant such as alkylamines, alkanolamide, fatty alcohol poly(ethylene glycol) ether, fatty alcohol ethoxylate (FAE), ethylene oxide (EO) and propylene oxide (PO) copolymers, amine oxides, alkyl polyglucosides, alkyl polyglucosamides, preferably in an amount between 85 and 99.95% on a weight basis of the composition, a microcapsule suspension as defined above, preferably in an amount between 0.05 and 15% by weight, more preferably between 0.1 and 5% by weight on a total weight basis of the composition. Shampoo / shower gel An object of the invention is a consumer product in the form of a shampoo or shower gel composition that 9971 I n / l 7Π7 / Ε / ΥΙΛΙ includes: a shampoo or shower gel active base; preferably selected from the group consisting of sodium alkyl ether sulfate, ammonium alkyl ether sulfates, alkylamphoacetate, cocamidopropyl betaine, cocamide MEA, alkyl glucosides and amino acid-based surfactants and mixtures thereof, preferably in an amount between 85 and 99.95% by weight based on the total weight of the composition, - a suspension of microcapsules or microcapsules as defined above, preferably in an amount between 0.05 and 15% by weight, more preferably between 0.1 and 5% by weight based on the total weight of the composition. Rinse-Out Conditioner An object of the invention is a consumer product in the form of a rinse-out conditioner composition comprising: an active rinse-off conditioner base; preferably selected from the group consisting of cetyltrimonium chloride, stearyltrimonium chloride, benzalkonium chloride, behentrimonium chloride and mixtures thereof, preferably in an amount between 85 and 99.95% by weight based on the total weight of the composition, - a suspension of microcapsules or microcapsules as defined above, preferably in an amount between 0.05 and 15% by weight, more preferably between 0.1 and 5% by weight based on the total weight of the composition. Hair coloring An object of the invention is a consumer product in the form of an oxidative hair coloring composition comprising: - an oxidizing phase comprising an oxidizing agent and an alkaline phase comprising an alkaline agent, a dye precursor and a coupling compound; wherein the dye precursor and the coupling compound form an oxidative hair dye in the presence of the oxidizing agent, preferably in an amount between 85 and 99.95% by weight based on the total weight of the composition, - a suspension or microcapsules as defined above, preferably in an amount between 0.05 and 15% by weight, more preferably between 0.1 and 5% by weight based on the total weight of the composition. An oxidative hair coloring composition is understood to be a composition comprising two groups of colorless dye molecules: the dye precursor and the coupling agent. By reacting with each other through an oxidation process, they form a wide range of colored molecules (dyes) that are then trapped in the hair due to their size. In other words, the dye precursor and the coupling compound form an oxidative hair dye in the presence of the oxidizing agent. Dye precursor and oxidative dye precursor are used interchangeably in the present invention. Dye precursors can be aromatic compounds derived from benzene substituted by at least two electron-donating groups such as NH2 and OH in para or ortho positions to confer the property of easy oxidation. According to one modality, the dye precursors are selected from the group consisting of p-phenylenediamine, 2,5-diaminoluene, N,N-bis(2-hydroxymethyl)-p-phenylenediamine, 4-aminophenol, 1,4-diaminobenzene, and mixtures thereof. Primary dye precursors are used in combination with coupling agents. Coupling agents are preferably aromatic compounds derived from benzene and substituted with groups such as NH2 and OH at the meta position. They do not produce color individually, but they modify the color, hue, or intensity of the colors developed by the dye precursor. According to one embodiment, the coupling agent is selected from the group consisting of resorcinol, 2-methyl resorcinol, 4-chlororesorquinol, 2,5-diaminotoluene, 1,3-diaminobenzene, 2,4-diaminophenoxyethanol HCl, 2-aminohydroxyethylaminoanisole sulfate, 4-amino-2-hydroxytoluene, and mixtures thereof. The oxidative dye precursor is preferably used in an amount between 0.001% and 5%, preferably between 0.1% and 4% by weight based on the total weight of the composition. The use of oxidizing dye precursors and coupling agents in hair color formulations has been extensively described in the prior art and is well known to those experienced in the technique. For example, document EP0946133A1, the contents of which are incorporated by reference, may be cited. The alkaline phase includes an alkaline agent, preferably chosen from the group consisting of ammonium hydroxide, ammonium carbonate, ethanolamine, potassium hydroxide, sodium borate, sodium carbonate, triethanolamine, and mixtures thereof. The alkaline agent is preferably used in an amount between 1% and 10%, preferably between 3% and 9% by weight based on the total weight of the composition. According to the invention, the coupling agent 9971 I n / l 7P7 / E / YILI and the dye precursor in an alkaline medium form an oxidative hair dye in the presence of the oxidizing agent. The oxidizing agent will supply the oxygen gas needed to develop color molecules and create a change in hair color. The oxidizing agent must be safe and effective for use in the compositions herein. Preferably, the oxidizing agents suitable for use in the present invention shall be soluble in the compositions according to the present invention when in liquid form and / or in the form intended for use. Preferably, the oxidizing agents suitable for use in the present invention shall be water-soluble. The oxidizing agents suitable for use in the present invention are selected from inorganic peroxygenated oxidizing agents, preformed organic peroxyacid oxidizing agents, and organic peroxide oxidizing agents, or mixtures thereof. The oxidizing agent is preferably used in an amount between 5 and 30%, preferably between 5 and 25% by weight based on the total weight of the composition. Components commonly used in cosmetic compositions can be added to the hair coloring composition as defined in the present invention. Examples include surfactants, cationic polymers, oily substances, silicone derivatives, fragrance, preservatives, ultraviolet absorbers, antioxidants, germicides, propellants, and thickeners. According to a particular modality, the hair coloring composition comprises one or more quaternary ammonium compounds, preferably chosen from the group consisting of cetyltrimonium chloride, stearyltrimonium chloride, benzalkonium chloride, behentrimonium chloride and mixtures thereof to confer hair conditioning benefits. Perfume composition According to a particular modality, the consumer product is presented in the form of a perfume composition comprising: - 0.1 to 30%, preferably 0.1 to 20% of microcapsules or microcapsule suspension as defined above, - 0 to 40%, preferably 3-40% perfume, and 20-90%, preferably 40-90% ethanol, by weight based on the total weight of the perfume composition. The invention will now be described in more detail by way of examples. It will be appreciated that the invention as claimed is not intended to be limited in any way by these examples. EXAMPLES 9971 I n / l 7Π7 / E / YΙΛΙ Materials Table 1: List of ingredients used in the examples Ingredients Function ETC® Acyl Chloride mXDA2> Amino Compound L-Lysine3) Amino Compound Jeffamine® D2304) Amino Compound EDA5) Amino Compound Diethylene Triamine6) Amino Compound Spermine Dihydrate 7) Amino Compound 1,3-Diaminopropane8) Amino Compound Guanidine Carbonate 9) Amino Compound Cystamine Hydrochloride 10) Amino Compound Gum Arabic111 Colloidal Stabilizer Bovine Serum Albumin 12) Colloidal Stabilizer Triethanolamine-3' Polyol Trimethylolpropane14) Polyol 1) 1,3,5-benzene tricarbonyl chloride; origin: Aldrich, Switzerland 2) m-xylylenediamine; origin: Aldrich, Switzerland 3) L-lysine; origin: Aldrich, Switzerland 4) Jeffamine® D230; origin: Aldrich, Switzerland 5) Ethylenediamine; origin: Aldrich, Switzerland 6) Diethylenetriamine; origin: Aldrich, Switzerland 7) Spermine Dihydrate; origin: Aldrich, Switzerland 8) 1,3-diaminopropane; origin: Aldrich, Switzerland 9) Guanidine carbonate; origin: Aldrich, Switzerland 10) Cystamine hydrochloride, origin: Aldrich, Switzerland 11) Superstab AA acacia gum, origin: Nexira, France 12) Bovine serum albumin; origin: Aldrich, Switzerland 13) Triethanolamine; origin: Aldrich, Switzerland 14) Trimethylolpropane; origin: Aldrich, Switzerland Composition of perfume oil: 9971 I n / l 7Π7 / Β / YΙΛΙ Table 2: Perfume oil composition Raw Materials % in oil 2,4-Dimethyl-3-cyclohexene-l-carbaldehyde 3.30% Allyl Heptanoate 5.50% Allyl amyl glycolate 10.99% Delta Damascone 1.65% Verdyl Acetate 20.30% Methyl Dihydro-asmonate 4.95% 1-(octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)-1-ethanone 16.49% Aid. Hexylcinnamic acid 9.89% Ethyl-2-methylvalerate 3.3% (+-)-2-methyl-3-[4-(2-methyl-2-propanyl)phenyl]propanal 21.98% (Z)-hex-3-en-l-yl butyrate 1.1% (-)-(8R)-8,12-epoxy-l3,14,15,16-tetranorlabdane 0.55% Total 100% 1) Firmenich SA, Geneva, Switzerland 2) International Flavors and Fragrances, USA 3) Firmenich SA, Geneva, Switzerland Example 1 Preparation of poly(amide-ester) microcapsules with a colloidal stabilizer in oil phase Capsules A: Preparation of capsules A using trimethylolpropane as the polyol. 1,3,5-Benzene tricarbonyl chloride (BTC, 0.88 g, Table 1) was dissolved in benzyl benzoate (2 g). Bovine serum albumin (0.95 g) was dispersed in benzyl benzoate at 60°C, and the acyl chloride solution was added and stirred for two minutes. Trimethylolpropane (0.45 g) was dissolved in ethyl acetate (2 g) at room temperature, and the solution was added to a second solution of 1,3,5-Benzene tricarbonyl chloride (0.88 g) in benzyl benzoate (2 g). The solution and the dispersion were added to perfume oil (25 g, Table 2) at room temperature to form an oil phase. The oil phase was added to an aqueous solution of L-lysine (2.5 g) (amino compound A) in water (95 g). The reaction mixture was stirred with an Ultra Turrax at 24,000 rpm for one minute to produce an emulsion. Polyamine (Amino B compound) (Table 3) was dissolved in water (5 g) and this solution was added dropwise to the emulsion.The reaction mixture was stirred at 30°C for 4 h to produce a white dispersion. Table 3: Compositions of capsule A CC7I I Π / l 7Π7 / Β / YΙΛΙ Capsules Compound Amino B Amine (g) A1 Ethylenediamine 0.5 A2 m-Xylenediamine 1.08 A3 Spermine dihydrate 1.90 A4 Diethylenetriamine 0.82 A5 Cystamine hydrochloride 1.80 Example 2 Preparation of poly(amide-ester) microcapsules with colloidal stabilizer in aqueous phase B Capsules - Preparation of B capsules with trimethylolpropane as the polyol Trimethylolpropane (MRP) was dissolved in ethyl acetate (5 g) at 40°C. A polyol solution was added to a solution of 1,3,5-benzene tricarbonyl chloride in benzyl benzoate (5 g), and the solution was stirred for 10 minutes at room temperature. The solution was added to perfume oil (25 g, Table 2) to form an oil phase. L-Lysine (3.5 g, 24 mmol) was dissolved in an aqueous solution of gum arabic (95 g, 1 wt%). The solution was stirred for 15 minutes to form an aqueous phase. The oil phase was added to the aqueous phase, and the reaction mixture was stirred with an Ultra Turrax at 24,000 rpm for 30 seconds to produce an emulsion. Polyamine (Table 4) was dissolved in 9971 I n / l 7P7 / B / YILI water (1 g) and this solution was added dropwise to the emulsion. A guanidine carbonate solution (10% by weight) was added to obtain a pH value of 7. The reaction mixture was stirred at 200 rpm with an anchor at 30°C for 2 h, then at 60°C for 2 h to produce a white dispersion. Table 4: Compositions of capsule B Capsules Acid Chloride (g) TMP (g) Amino Compound A (g) Amino Compound B (g) BI 1.77 0.90 L-Lysine 3.5 1,2-Diaminocyclohexane 0.14 B2 1.77 0.90 L-Lysine 3.5 m-Xylylene Diamine 0.17 B3 1.77 0.90 L-Lysine 3.5 1,4-Diaminocyclohexane 0.14 B4 2.66 0.90 L-Lysine + Guanidine Carbonate 30% 2.5 10.78 Jeffamine T403 1.18 B5 2.66 0.45 L-Lysine + Guanidine Carbonate 30% 2.5 10.25 Jeffamine T403 2.35 B6 2.66 0.90 L-Lysine + Guanidine Carbonate 30% 2.5 13.45 Lysine ethyl aster 0.99 B7 2.66 0.45 L-Lysine + Guanidine Carbonate 30% 2.5 12.45 Lysine ethyl aster 1.95 B8 2.65 0.45 L-Lysine 2.5 Ethylene diamine 0.48 B9 2.65 0.45 L-Lysine 2.5 Diethylene triamine 0.82 B10 2.65 0.45 L-Lysine 2.5 Hespermin 1.90 BU 2.65 0.45 L-Lysine + Guanidine Carbonate 30% 2.5 6.38 Cystamine 1.80 B12 1.77 0.90 L-Lysine 2.5 1,2-diaminocyclohexane 0.91 B13 7.72 1.30 L-Lysine 7.30 m-xylylene diamine 3.60 C Capsules - Preparation of C Capsules with triethanolamine as polyol Capsules C were prepared as described above for capsules B with triethanolamine (0.50 g) in ethyl acetate (2.5 g), 1,3,5benzene tricarbonyl chloride (1.76 g) in benzyl benzoate (5 g), xylylenediamine in water (5 g), L-lysine (2.5 g) in a 1 wt% aqueous solution of gum arabic (95 g), for 4 h at 30°C. D Capsules- Preparation of D capsules with ethylene glycol as polyol Ethylene glycol (0.12 g) was dissolved in ethyl acetate (2.5 g) at 40°C. A polyol solution (ethylene glycol) was added to a solution of 1,3,5-benzene tricarbonyl chloride (0.35 g) in benzyl benzoate (2.5 g), and the solution was stirred for 60 minutes at 60°C. This solution was added to perfume oil (25 g, Table 2) in which colloidal stabilizer (sodium caseinate, 0.95 g) and a solution of 1,3,5-benzene tricarbonyl chloride (1.4 g) in benzyl benzoate (2.5 g) were dispersed to form an oil phase. L-Lysine (2.5 g, 17 mmol) was dissolved in water. The solution was stirred for 15 minutes to form an aqueous phase. Oil phase was added to the aqueous phase, and the reaction mixture was stirred with an Ultra Turrax at 24,000 rpm for 30 seconds to produce an emulsion. Ethylenediamine (0.2 g) was dissolved in water (5 g), and this solution was added dropwise to the emulsion. The reaction mixture was stirred at 250 rpm in an incubator at 30°C for 4 h. The average size of D microcapsules is around 30 pm. The microcapsules show a perfume leakage of 16% in a fabric softener base (see composition in table 5) for 3 days at 43°C. E Capsules- Preparation of E capsules with pentaerythritol as polyol E capsules were prepared as described above for D capsules with pentaerythritol (0.2 g) in ethanol (2.5 g), 1,3,5-benzene tricarbonyl chloride (1.76 g total) in benzyl benzoate (5 g total), ethylenediamine (0.18 g) in water (5 g), L-Lysine (2.5 g) in water, for 4 h at 30°C. The TGA measurement from 30°C to 50°C (5°C / min) and maintained at 50°C for 250 min shows that the microcapsules retain 100% of the perfume oil after 250 min. F Capsules - Preparation of F capsules with di(trimethylolpropane) as a polyol The F capsules were prepared as described above for the D capsules with di(trimethylolpropane) (0.25 g) in acetone (2.5 g), 1,3,5-benzene chloride 9971 I n / l 7Π7 / Ε / ΥΙΛΙ tricarbonyl (1.76 g total) in benzyl benzoate (5 g total), ethylene diamine (0.23 g) in water (5 g), L-Lysine (2.5 g) in water, for 4 h at 30°C. The average size of F microcapsules is around 30 pm. Example 3 Preparation of poly(amide-ester) microcapsules with polyphenols G capsules: Preparation of G capsules using tloroglucinol as a polyol 1,3,5-Benzene tricarbonyl chloride (BTC, 1.7799 g, Table 1) was dissolved in benzyl benzoate (5.02 g). Sodium caseinate (0.95 g) was dispersed in 5.10 g of benzyl benzoate. The solution and dispersion were added to perfume oil (25.30 g, Table 2) at room temperature to form an oil phase. The oil phase was then rapidly added to an aqueous solution of L-lysine (2.5 g) in water (94 g) before emulsifying with an Ultra Turrax at 24,000 rpm for 30–45 seconds. A pre-prepared solution of phloroglucinol (0.13 g) in ethanol (1 g) was then added to the emulsion while stirring with a propeller at 400 rpm. Three to five minutes later, a solution of ethylenediamine (EDA, 0.18 g, Table 1) dissolved in water (5 g) was slowly added to the reaction mixture while stirring. The reaction mixture was stirred at 30°C for 4 h to produce a white dispersion. The average size of the G microcapsule is 50 microns (see Figure 1). The TGA measurement from 30°C to 50°C (10°C / min) and holding at 50°C for 240 min shows that the microcapsules retain 100% of the perfume oil after 240 min (see Figure 2). Stability in the base of the fabric softener of the G microcapsule: The amount of G microcapsule suspension corresponding to 0.116% perfume was dispersed in a fabric softener (see Table 5) and stored for 3 days at 38°C. Perfume leakage was then quantified and measured at 14% after 3 days. H Capsules: Preparation of H capsules using a condensed tannin as a polyphenol 1,3,5-Benzene tricarbonyl chloride (BTC, 1.7878 g, Table 1) was dissolved in benzyl benzoate (5.20 g). Sodium caseinate (0.96 g) was dispersed in 5.05 g of benzyl benzoate. The solution and dispersion were added to perfume oil (25.22 g, Table 2) at room temperature to form an oil phase. The oil phase was then rapidly added to an aqueous solution of L-lysine (2.51 g) in water (95 g) before emulsifying with an Ultra Turrax at 24,000 rpm for 30–45 seconds. A pre-prepared solution of condensed tannin from Tan'activ U (0.20 g) in water (5 g) was then added to the emulsion while stirring with a propeller at 400 rpm. Three to five minutes later, a solution of ethylenediamine (EDA, 0.24 g, Table 1) dissolved in water (5 g) was slowly added to the reaction mixture while stirring. The reaction mixture was stirred at 30°C for 4 h to produce a white dispersion. The average size of the H microcapsule is 50 microns. The TGA measurement from 30°C to 50°C (10°C / min) and maintaining at 50°C for 240 min shows that the microcapsules retain 100% of the perfume oil after 240 min (see Figure 3). Stability in the base of the fabric softener of the H microcapsule: The amount of H microcapsule suspension corresponding to 0.116% perfume was dispersed in a fabric softener (see composition in Table 5) and stored for 3 days at 38°C. Perfume leakage was then quantified and measured at 14% after 3 days. Example 4 Fabric softener composition Capsules A, B, C, D, E, F, G or H (AH) are dispersed in a fabric softening base described in Table 5 to obtain a concentration of encapsulated perfume oil 0071 i η / ι znz / E / YiAi 0.22%. 9971 I n / l 7Π7 / E / YΙΛΙ Table 5: Composition of fabric softener Product % by weight Stepantex VL 90A 8.88 Calcium chloride solution 10% 0.36 Proxel GXL 0.04 Perfume 1 Water 89.72 TOTAL 100 Example 5 Liquid detergent composition The AH capsules are dispersed in a liquid detergent base described in Table 6 to obtain an encapsulated perfume oil concentration of 0.22%. Table 6: Composition of liquid detergent Ingredients Concentration [% by weight] Sodium C14-17 Alkyl Sec Sulfonate 7 Fatty Acids, C12-18 and C18 Unsaturated® 7.5 C12 / 14 Polyglycol Ether Grain Alcohol with 7 mol EO3) 17 Triethanolamine 7.5 Propylene Glycol 11 Citric Acid 6.5 Potassium Hydroxide 9.5 Protease 0.2 Amylase 0.2 Mannanase 0.2 Acrylates / Methacrylate Steareth-20 Structuring Crosspolymer 4) 6 Deionized Water 27.4 1) Hostapur SAS 60; Origin: Clariant 2) Edenor K 12-18; Origin: Cognis 3) Genapol LA 070; Origin: Clariant 4) Aculyn 88; Origin: Dow Chemical Example 6 Rinse-out conditioner The AH capsules are dispersed in a rinse-out conditioner base and are described in Table 7 to obtain a concentration of encapsulated perfume oil of 0.5%. Table 7; Rinse-out conditioner composition Ingredients Concentration [% by weight] A Deionized Water 81.8 Behentrimonium Chloride 11 2.5 Hydroxyethylcellulose 2) 1.5 B Cetearyl Alcohol 3) 4 Glyceryl Stearate (and) PEG-100 Stearate 4> 2 Behentrimonium Methosulfate (and) Cetyl Alcohol (and) Butylene Glycol 5) 4 Ethoxy (20) Stearyl Alcohol 6) 1 C Amodimethicone (and) Trideceth-12 (and) Cetrimonium Chloride 71 3 20% Aqueous Chlorhexidine Digluconate Solution 81 0.2 D 10% Aqueous Citric Acid Solution to pH 3.5-4 qs TOTAL: 100 1) Genamin KDM P, Clariant 2) Tylose H10 Y G4, Shin Etsu 3) Lanette O, BASF 4) Arlacel 165-FP-MBAL-PA- (RB) , Croda 5) Incroquat Behenyl TMS-50-MBAL-PA- (ΜΗ) HA4112, Croda 6) SP Brij S20 MBAL-PA (RB), Croda 7) Emulsión Xiameter DC MEM-0949, Dow Corning 8) Alpha Aesar Example 7 Composición de champú The capsules AH of the present invention are heavy and mixed in a composition of champagne to add them 9971 I n / l 7Π7 / Ε / ΥΙΛΙ equivalent to 0.2% of perfume. Table 8: Champagne composition Ingredients Concentration [% en peso] A Deionized water 44.4 Polyquaternio-10 ® 0.3 Glycerin 85% 21 1 Hydantoina DMDM ​​31 0.2 B Sodium Laureth Sulfate 4) 28 Cocamidopropyl Betaine 5i 3.2 Disodium Cocoamphodiacetate 6) 4 Alcohol ethoxy (20) estearyl 61 1 C Sodium Laureth Sulfate 4) 3 Glyceryl Laureth Sulfate 7) 0.2 D Deionized Water 1 Sodium Methylparaben 8) 0.1 E 10% Aqueous Sodium Chloride Solution 15 10% Aqueous Citric Acid Solution to pH 5.5-6 qs Perfume 0.5 TOTAL: 100 1) Ucare JR-400 Polymer, Noveon 2) Schweizerhall 3) Glydant, Lonza 4) Texapon NSO IS, Cognis 5) Tego Betain F 50, Evonik 6) Amphotensid GB 2009, Zschimmer and Schwarz 7) Monomuls 90 L-12, Gruenau 8) Nipagina monosodica, ÑIPA Example 8 Composition of antiperspirant roll-on emulsion The AH capsules of the present invention are weighed and mixed into a roll-on antiperspirant emulsion composition to add the equivalent of 0.2% perfume. Table 9: Composition of the antiperspirant roll-on emulsion Ingredient Quantity (% by weight) Steareth-2lf (Part A) 3.25 Steareth-212 (Part A) 0.75 PPG-15 Stearyl Ether3 (Part A) 4 Deionized Water (Part B) 51 Aqueous Aluminum Chlorohydrate Solution 50% (Part C) 40 Fragrance (Part D) 1 1) BRIJ 72; origin: HERE 2) BRIJ 721; origin: HERE 3) ARLAMOL E; origin: UNIQEMA-CRODA 4) LOGRON L; origin: CLARIAN Parts A and B are heated separately to 75°C; Part A is added to Part B with stirring and the mixture is homogenized for 10 min. The mixture is then cooled with stirring; and Part C is added slowly when the mixture reaches 45°C and Part D when the mixture reaches 35°C while stirring. The mixture is then cooled to room temperature. Example 9 Shower gel composition The AH capsules of the present invention are weighed and mixed in the following composition to add the equivalent of 0.2% perfume. 9971 I n / l 7Π7 / Β / YΙΛΙ Table 10: Composition of shower gel Ingredients Quantity (% by weight) Function Deionized Water 49.350 Solvent Tetrasodium EDTA 0.050 Chelating Agent Acrylates Copolymer 6.000 Thickener Pareth Sodium C12-C15 Sulfate 35.000 Surfactant 20% Aqueous Sodium Hydroxide Solution 1.000 pH Adjuster Cocamidopropyl Betaine 8.000 Surfactant Methylchloroisothiazolinone and Methylchloroisothiazolinone 0.100 Preservatives Citric Acid (40%) 0.500 pH Adjuster 1) EDETA B POWDER; brand and origin: BASF 2) CARBOPOL AQUA SF-1 POLYMER; brand and origin: NOVEON 3) ZETESOL AO 328 U; brand and origin: ZSCHIMMER & SCHWARZ 4) TEGO-BETAIN F 50; registered trademark and origin: GOLDSCHMIDT 5) ΚΆΤΗΟΝ CG; trademark and origin: ROHM & HASS It is hereby stated that, as of this date, the best method known to the applicant for putting the aforementioned invention into practice is the one that is clear from the present description of the invention.

Claims

1. A process for preparing a suspension of poly(amide-ester) core-shell microcapsules, characterized in that it comprises the following steps: a) Dissolving at least one acyl chloride in a hydrophobic material, preferably a perfume, to form an oil phase; b) Dispersing the oil phase obtained in step a) in an aqueous phase optionally comprising an amino compound A or a base to form an oil-in-water emulsion; c) Adding an amino compound B to the oil-in-water emulsion obtained in step b); and d) Performing a curing step to form poly(amide-ester) microcapsules in suspension form, wherein the stabilizer is added in step a) and / or step b), and wherein a polyol is added in step a) and / or step b) and / or step c).

2. The process according to claim 1, characterized in that the acyl chloride is selected from the group consisting of 1,3,5-benzene tricarbonyl chloride, benzene-1,2,4-tricarbonyl trichloride, benzene-1,2,4,5-tetracarbonyl tetrachloride, cyclohexane-1,3,5-tricarbonyl trichloride, isophthaliol dichloride, diglycolyl dichloride, terephthaloyl chloride, succinic dichloride, and mixtures thereof.

3. The process according to claim 1 or claim 2, characterized in that the aqueous phase comprises an amino compound A.

4. The process according to any of the preceding claims, characterized in that the amino compound A is selected from the group consisting of L-lysine, L-lysine ethyl ester, guanidine carbonate, gitosane, 3-aminopropyltriethoxysilane and mixtures thereof.

5. The process according to any of the preceding claims, characterized in that the amino compound B is selected from the group consisting of cystamine, cystamine hydrochloride, cystine, cystine hydrochloride, cystine dialkyl ester, cystine dialkyl ester hydrochloride, xylylenediamine, 1,2-diaminocyclohexane, 1,4-diaminocyclohexane, L-lysine, L-lysine ethyl ester, (0,0' Bis(2-aminopropyl)polypropylene glycol-block-polyethylene glycol-block-polypropylene glycol, ethylenediamine, diethylenetriamine, spermine, spermidine, polyamidoamine (PAMAM), guanidine carbonate, chitosan, tris-(2-aminoethyl)amine, 3-aminopropyltriethoxysilane, L-arginine, and mixtures thereof.

6. The process in accordance with any of claims 3 to 5, characterized in that amino compound A and amino compound B are different.

7. The process according to any of the preceding claims, characterized in that the stabilizer is selected from the group consisting of gum arabic, modified starch, polyvinyl alcohol, polyvinylpyrrolidone, carboxymethylcellulose, anionic polysaccharides, acrylamide copolymer, inorganic particles, proteins, and mixtures thereof.

8. The process according to any of the preceding claims, characterized in that the molar ratio between the NH2 functional groups of the amino compound B and the COCI functional groups of the acyl chloride is between 0.01 and 7.

5.

9. The process according to any of the preceding claims, characterized in that the weight ratio between the acyl chloride and the hydrophobic material is between 0.02 and 0.

09.

10. The process according to any of the preceding claims, characterized in that the polyol is selected from the group consisting of triethanolamine, di(trimethylolpropane), ethylene glycol, glycerol, 1,4-butanediol, 1,2-hexanediol, 1,6-hexanediol, 2-ethyl-2-(hydroxymethyl)propane-1,3-diol (trimethylolpropane, TMP), 2,2-bis(hydroxymethyl)propane-1,3-diol (pentaerythritol), 2-amino-2-ethylpropane-1,3-diol, 2-amino-2-(hydroxymethyl)propane-1,3-diol, 2,2'-azanediylbis(ethan-1-ol), 2-aminopropane-1,3-diol, 2-amino-2-methylpropane-l, 3-diol, polyphenols or mixtures thereof.

11. A poly(amide ester) core-shell microcapsule characterized in that it comprises: - an oil-based core comprising a hydrophobic material, preferably a perfume, and - a poly(amide ester) shell.

12. The poly(amide ester) core-shell microcapsule according to claim 11, characterized in that the poly(amide ester) shell includes: - optionally a stabilizer, preferably from 0% to 75% w / w of a stabilizer, - an acyl chloride, preferably from 10% to 90% w / w of an acyl chloride, - optionally an amino compound A, preferably from 0 to 50%, preferably from 5% to 50% w / w of an amino compound A, - an amino compound B, preferably from 1% to 40% w / w of an amino compound B, and - a polyol, preferably from 1 to 60% w / w of a polyol, based on the total weight of the shell.

13. A perfume composition, characterized in that it comprises: (i) a perfume microcapsule according to claim 11 or 12, wherein the hydrophobic material comprises a perfume, (ii) at least one ingredient selected from the group consisting of a perfume carrier and a perfume base, and (iii) optionally at least one perfume adjuvant.

14. A consumer product, characterized in that it comprises: - an active personal care base, and - microcapsules according to claim 11 or 12 or the perfume composition according to claim 13, wherein the consumer product is in the form of a personal care composition.

15. A consumer product, characterized in that it comprises: - an active base for home care or fabric care, and - microcapsules according to claims 11 or 12 or the perfume composition according to claim 13, wherein the consumer product is in the form of a composition for home care or fabric care.