Liquid detergent composition

Abstract

The liquid detergent composition comprises a first surfactant which is a mixture of surfactant isomers of Formula 1 and a surfactant of Formula 2, [Formula 1] TIFF2024544943000019.tif51150 A first surfactant, wherein about 50% to about 100% by weight of the first surfactant is the isomer having m+n=11, and about 25% to about 50% of the mixture of surfactant isomers of Formula 1 have n=0, and about 0.001% to about 25% by weight of the first surfactant is a surfactant of Formula 2, where X is a hydrophilic moiety; and an encapsulating agent comprising a shell and a core, wherein the shell comprises a polyacrylate and the core comprises a fragrance.

Description

[Technical Field]

[0001] A liquid detergent composition comprising a first surfactant and an encapsulating agent comprising a shell and a core, wherein the shell comprises polyacrylate and the core comprises a fragrance. [Background technology]

[0002] Liquid detergent compositions are routinely used to clean substrates such as fabrics. The formulation of a liquid detergent composition is, above all, a balance between its ability to thoroughly clean the target substrate without damaging it. In addition, many consumers prefer that washed substrates have a pleasant scent after washing. While some fragrance can be applied to the substrate throughout the washing process, it may not be at a level preferred by consumers. This can lead to the use of fragrance technologies, such as fragrance encapsulants, to help further enhance the scent. However, encapsulants can be difficult to deliver efficiently to the target substrate, and much of it is washed away in the wastewater, rendering its benefits unavoidable. Therefore, it is beneficial to find and utilize materials in the formulation that can help deposit encapsulants onto the target substrate. Thus, there is a need for materials that can be used in liquid detergent compositions that can help deposit encapsulants onto the target substrate. [Overview of the project] [Means for solving the problem]

[0003] This specification includes, for example, a liquid detergent composition, a) a first surfactant essentially comprising a mixture of surfactant isomers of formula 1 and a surfactant of formula 2 in an amount of about 1% to about 30% by weight of the composition.

[0004] [ka] Approximately 50% to 100% by weight of the first surfactant is an isomer having m+n=11. Surfactant isomers of formula 1 Approximately 25% of the mixture weight %~about 50 weight % However, n=0 Surfactant isomers of Equation 1 And, The liquid detergent composition comprises: a) a) a first surfactant comprising about 0.001% to about 25% by weight of the first surfactant, wherein X is a hydrophilic portion of the formula 2, b) an encapsulating agent comprising a shell and a core, comprising about 0.1% to about 5% by weight of the composition, wherein the shell comprises a polyacrylate and the core comprises a fragrance, and c) a detergent auxiliary.

[0005] Furthermore, this specification includes, for example, a liquid detergent composition, a) a first surfactant essentially comprising a mixture of surfactant isomers of formula 1 and a surfactant of formula 2,

[0006] [ka] Approximately 50% to 100% by weight of the first surfactant is an isomer having m+n=11. Surfactant isomers of formula 1 Approximately 25% of the mixture weight %~about 50 weight % However, n=0 Surfactant isomers of Equation 1 And, The liquid detergent composition comprises a first surfactant in which approximately 0.001% to approximately 25% by weight is the surfactant of formula 2, where X is a hydrophilic portion, and an encapsulating agent comprising a shell and a core, wherein the shell comprises polyacrylate and the core comprises a fragrance, and the weight ratio of the first surfactant to the encapsulating agent is approximately 300:1 to approximately 2:1.

[0007] These and other embodiments will be described more fully throughout this specification. [Modes for carrying out the invention]

[0008] Consumers can equate the scent of the substrate with its level of cleanliness. Additionally, some consumers generally prefer a strongly scented substrate after washing. This can be achieved at least in part by the use of fragrances, but depositing the fragrance on the substrate can be inefficient, meaning that much of the fragrance flows into the drain. Additionally, since fragrances can be expensive, adding more fragrance to the product increases the cost of the product. Furthermore, formulating high levels of fragrance can pose problems with product stability.

[0009] This led to the development of fragrance technologies. One such fragrance technology is encapsulating agents. Generally speaking, encapsulating agents have a shell and a core. The shell is induced by an event (such as moisture or friction) and releases the contents stored in the core (which can be, for example, a fragrance). However, encapsulating agents can have their own difficulties. For example, like fragrances, they can be difficult to deposit on the target substrate. Thus, the inventors investigated whether it was possible to find a synergistic effect between certain surfactants and encapsulating agents that could assist in depositing the encapsulating agents on the target substrate.

[0010] One surfactant investigated was a branched alkyl sulfate (a mixture of surfactant isomers of formula 1 and surfactant of formula 2:

[0011]

Chemical formula

[0012] To investigate whether a synergistic effect exists between these materials, a liquid detergent composition is prepared (comparative composition A). This composition is a liquid detergent chassis that does not contain either branched alkyl sulfate or encapsulating agent. Comparative compositions B, C, and D are also prepared, which are liquid detergent chassis containing an encapsulating agent, while comparative compositions E, F, and G are liquid detergent chassis with added branched alkyl sulfate. Compositions 1 to 5 of the present invention are prepared using both branched alkyl sulfate and encapsulating agent. The formulations for comparative compositions A to G and compositions 1 to 5 of the present invention are given in the following Examples section.

[0013] The encapsulating agent deposition on the target substrate is measured using fabric headspace analysis. Typically, a higher concentration of encapsulating agent on the target substrate correlates with a higher fragrance intensity (measured by headspace analysis). Here, the terry cloth is obtained from Calderon (Indianapolis, IN, USA). The terry cloth is peeled, pre-conditioned, and then subjected to a washing test. Details of this process can be found in the section on the method referred to as fabric headspace analysis.

[0014] When searching for synergistic effects, we look for those greater than additive effects. Therefore, we individually examine the effect of each given material, the expected effect of using them together, and the actual effect of using them together. Headspace intensity is calculated using single-point calibration of fragrance ingredients. The total headspace concentration for each vial is calculated from the sum of the concentrations of each detected fragrance ingredient. The headspace average is taken for the fabric being treated. In addition, to take into account the chassis (comparative composition A) and any benefits observed from the chassis, the values ​​in Tables 1-2 were determined for comparative composition A (delta headspace vs. comparative composition A).

[0015] As discussed in Table 1, the dry fabric odor was measured, as further details will be considered in the fabric headspace analysis method. As seen in Table 1 below, the actual headspace level of composition 1 of the present invention is 0.15 nmol / L higher, or 26% higher, than expected based on the individual measurements of comparative compositions B and E. The same is true for compositions 2-5 of the present invention, whose actual headspace values ​​are 22%-52% higher than expected based on the performance of the individual components in the chassis. This demonstrates a synergistic effect between the branched alkyl sulfate and the encapsulating agent, which results in improved deposition of the encapsulating agent onto the target substrate, particularly for terry cloth.

[0016] [Table 1]

[0017] Additional testing is completed using pulverized fabric samples. The pulverized fabric samples are prepared in the same way as the dry fabric samples, except that the pulverized samples are uncapped in the apparatus, the rod is lowered into the vial, and an equal weight of 67 psi is applied to the fabric in the vial for 10 seconds. As seen in Table 2 below, the synergistic effect is even more pronounced when looking at the pulverized fabric samples.

[0018] [Table 2]

[0019] Considering the synergistic effect observed between branched alkyl ethoxysulfates and encapsulating agents, it is conceivable that liquid detergent formulations with fewer fragrance encapsulating agents but with similar or better fragrance performance than liquid detergents with higher levels of encapsulating agents that do not contain branched alkyl sulfates can be formulated. This can provide additional formulation flexibility, cost reduction, and opportunities for more sustainable formulations.

[0020] Liquid detergent composition Liquid detergent composition is branched alkyl sulfate To Contains the first surfactant and encapsulating agents The liquid detergent composition may contain about 5% to about 60% by weight of total surfactants. The liquid detergent composition may contain about 5%, 6%, 7%, 8%, 9%, or 10% to about 8%, 9%, 10%, 14%, 16%, 18%, 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38%, 40%, 45%, 50%, or any combination thereof of total surfactants. The weight ratio of the first surfactant to the encapsulating agent may be about 300:1 to about 2:1, about 200:1 to about 2:1, about 100:1 to about 2:1, about 50:1 to about 2:1, about 35:1 to about 2:1, about 30.5:1 to about 2:1, about 15.5:1 to about 2:1, or about 7.5:1 to about 2:1. The liquid detergent composition may also contain about 1% to about 95% of a carrier such as water. The liquid detergent composition may be a laundry detergent composition. The liquid "laundry detergent composition" includes any composition capable of cleaning fabrics in a washing machine or by hand. The liquid laundry detergent composition can be used in high-efficiency and standard washing machines, in addition to hand washing in a tub or basin, for example.

[0021] The liquid detergent composition may have a higher dry fabric odor than the combination of the dry fabric odor of a first reference composition containing a first surfactant and a second reference composition containing an encapsulating agent. The liquid detergent composition may have a higher ground fabric odor than the combination of the ground fabric odor of a first reference composition containing a first surfactant and a second reference composition containing an encapsulating agent. The dry fabric odor and / or ground fabric odor may be about 10% or more, about 29% or more, or about 30% or more higher than that of the combination of the first reference composition containing a first surfactant and a second reference composition containing an encapsulating agent. The first reference composition does not contain microcapsules, and the second reference composition does not contain the first surfactant. An example of a chassis that may be used to prepare the first and second reference compositions is Comparative Example A. The odor values ​​of the dry fabric and ground fabric can be measured as disclosed herein. The fabric used for measurement may be, for example, terry cloth.

[0022] Branched alkyl sulfate The liquid detergent composition may contain a first surfactant comprising a branched alkyl sulfate in an amount of about 1% to about 30% by weight of the composition. The liquid detergent composition may also contain branched alkyl sulfate in an amount of about 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, or 10% to about 5%, 6%, 7%, 8%, 9%, 10%, 12%, 14%, 16%, 18%, 20%, 22%, 24%, 26%, 28%, or any combination thereof of the composition. The branched alkyl sulfate may include 2-alkyl branched alkyl alcohols. 2-alkyl branched alcohols are positional isomers in which the position of the hydroxymethyl group (consisting of a methylene crosslink (-CH2- unit) bonded to a hydroxy(-OH) group) on the carbon chain changes. Therefore, 2-alkyl branched alkyl alcohols generally consist of a mixture of positional isomers. Furthermore, it is well known that aliphatic alcohols such as 2-alkyl branched alcohols and surfactants are characterized by their chain length distribution. In other words, aliphatic alcohols and surfactants generally consist of a blend of molecules having different alkyl chain lengths (although it is possible to obtain single-chain-length pieces). In particular, the 2-alkyl primary alcohols described herein, which may have a specific alkyl chain length distribution and / or a specific proportion of a particular positional isomer, cannot be obtained by simply blending commercially available materials. Specifically, a distribution of surfactants with m+n=11 in a range of about 50% to about 100% by weight cannot be achieved by blending commercially available materials.

[0023] The liquid detergent composition may contain a first surfactant, which essentially consists of a mixture of surfactant isomers of formula 1 and a surfactant of formula 2.

[0024] [ka] Approximately 50% to 100% by weight of the first surfactant is an isomer having m+n=11. Surfactant isomers of formula 1 Approximately 25% of the mixture weight %~about 50 weight % However, n=0 Surfactant isomers of Equation 1 And, Approximately 0.001% to 25% by weight of the first surfactant is the surfactant of formula 2, where X is the hydrophilic portion.

[0025] X can be neutralized with, for example, sodium hydroxide, potassium hydroxide, magnesium hydroxide, lithium hydroxide, calcium hydroxide, ammonium hydroxide, monoethanolamine, diethanolamine, triethanolamine, monoisopropanolamine, diamine, polyamine, primary amine, secondary amine, tertiary amine, amine-containing surfactant, or a combination thereof.

[0026] X is sulfate, alkoxylated alkyl sulfate, sulfonate, amine oxide, polyalkoxylate, polyhydroxy moiety, phosphate ester, glycerol sulfonate, polygluconate, polyphosphate ester, phosphonate, sulfosuccinate, sulfosaccharinate, polyalkoxylated carboxylate, glucamide, taurinate, sarcosinate, glycinate, isethionate, dialkanolamide, monoalkanolamide, monoalkanolamide sulfate, diglycolamide, diglycolamide sulfate, glycerol ester, glycerol The following can be selected from ester sulfates, glycerol ethers, glycerol ether sulfates, polyglycerol ethers, polyglycerol ether sulfates, sorbitan esters, polyalkoxylated sorbitan esters, ammonia alkanesulfonates, amidopropyl betaine, alkylated quaternary ammonium compounds, alkylated / polyhydroxyalkylated quaternary ammonium compounds, alkylated / polyhydroxylated oxypropyl quaternary ammonium compounds, imidazoline, 2-yl-succinate, sulfonated alkyl esters, sulfonated fatty acids, and mixtures thereof.

[0027] The first surfactant is, Surfactant isomers of formula 1 about 15 of the mixture weight %~about 40 weight %, for example, about 20 weight %~about 40 weight %, about 25 weight % ~ approx. 35 weight %, or approximately 30 weight %~about 40 weight It may have surfactant isomers of formula 1 having n=1, such as %. The first surfactant is Surfactant isomers of formula 1 About 60% of the mixture weight %~about 90 weight %, for example, about 65 weight %~about 85 weight %, about 70 weight %~about 90 weight %, or approximately 80 weight %~about 90 weight The detergent composition may have surfactant isomers of formula 1 having n<3, such as %. The first surfactant Approximately 90 weight %~about 100 weight %, for example, about 95 weight %~100 weight %, etc. 、m +n=11 isomer It may have.

[0028] The first surfactant is, formula 1 Surfactant isomers For approximately 15% to 40% by weight of the mixture, n=1, Equation 1 surfactants isomers, formula 1 Surfactant isomers For approximately 5% to 20% by weight of the mixture, n=2, Equation 1 surfactants It may have isomers. The first surfactant is a compound of formula 1 where n is 6 or more. surfactants It does not need to have isomers. The first surfactant is Surfactant isomers of formula 1 The mixture up to approximately 40 weight It may have a percentage of surfactant isomers of formula 1 where n > 2. The first surfactant is Surfactant isomers of formula 1 The maximum of approximately 25% of the mixture weight The first surfactant may have a surfactant isomer of formula 1 having n > 2 in % of the total. The first surfactant may have an isomer of formula 2 in up to about 20% by weight.

[0029] impurities The process for producing the above-mentioned 2-alkyl primary alcohol-derived surfactant may generate various impurities and / or contaminants at different steps in the process.

[0030] The starting C15 and C13 aldehydes, as well as the C14 and C12 olefin sources used in hydroformylation to produce the subsequent alcohols and corresponding surfactants used in the present invention, can only contain low levels of impurities in the starting C15 and C13 alcohols, and therefore impurities in the C15 and C13 alkyl sulfates. While not bound by theory, such impurities present in the C14 and C12 olefin feedstocks may include vinylidene olefins, branched olefins, paraffins, aromatic components, and low levels of olefins having chain lengths other than the intended 14 or 12 carbons. Branched and vinylidene olefins are typically present in C14 and C12 alpha-olefin sources at 5% or less. The impurities in the resulting C15 and C13 alcohols may include low levels, typically less than 5% by weight, preferably less than 1%, of linear and branched alcohols in the range of C10 to C17 alcohols, particularly C11 and C15 alcohols in the C13 alcohol, and particularly C13 and C17 alcohols in the C15 alcohol; low levels of branching at positions other than the 2-alkyl position resulting from branching and vinylidene olefins, typically less than about 5% by weight, preferably less than 2% by weight, of the alcohol mixture; paraffin and olefins, typically less than 1% by weight, preferably less than about 0.5%, of the alcohol mixture; and low levels of aldehydes having a carbonyl value typically less than 500 mg / kg, preferably less than about 200 mg / kg. These impurities in the alcohol may result in the formation of low levels of paraffin, linear and branched alkyl sulfates with a total number of carbon atoms other than C15 or C13, and alkyl sulfates with branches at positions other than the 2-alkyl position, where these branches are typically linear alkyl chains with 1 to 6 carbon atoms, although their length may vary. The hydroformylation process may also produce impurities such as linear and branched paraffin, residual olefins from incomplete hydroformylation, and esters, formates, and heavy fractions (dimers, trimers).Impurities that are not reduced to alcohol during the hydrogenation process can be removed during the final purification of the alcohol by distillation.

[0031] Furthermore, it is well known that the process of sulfated aliphatic alcohols to obtain alkyl sulfate surfactants also results in various impurities. The exact nature of these impurities depends on the sulfated and neutralized conditions. However, generally speaking, impurities in the sulfated process include one or more inorganic salts, unreacted aliphatic alcohols, and olefins ("The Effect of Reaction By-Products on the Viscosities of Sodium Lauryl Sulfate Solutions," Journal of the American Oil Chemists' Society, Vol. 55, No. 12, pp. 909-913 (1978), CFPutnik and SEMcGuire).

[0032] Alkoxylated impurities may include dialkyl ethers, polyalkylene glycol dialkyl ethers, olefins, and polyalkylene glycols. The impurities may also include catalysts or catalyst components used in various processes.

[0033] Encapsulating agent The liquid detergent composition may contain an encapsulating agent. The composition may contain, for example, about 0.05% to about 5% by weight of the composition, or about 0.05% to about 5% by weight, or about 0.1% to about 5% by weight, or about 0.2% to about 2% by weight of the encapsulating agent. The composition may contain an amount of encapsulating agent sufficient to provide the composition with about 0.05% to about 10% by weight, or about 0.1% to about 5% by weight, or about 0.1% to about 2% by weight of fragrance. The encapsulating agent includes a shell and a core. The core may be surrounded by the shell.

[0034] In this specification, the amount or weight percentage of the inclusion means the sum of the shell material and the core material.

[0035] The encapsulating agent may have a median volume weight size of about 0.5 micrometers to about 100 micrometers, or more preferably 10 to 100 micrometers, more preferably about 1 micrometer to about 60 micrometers, or more preferably 10 to 50 micrometers, or more preferably 20 to 45 micrometers, or alternatively 20 to 60 micrometers.

[0036] core The core may contain fragrances. The fragrances may consist of a single fragrance raw material or a mixture of fragrance raw materials. The term “fragrance raw material” (or “perfume raw material, PRM”), as used herein, means a compound having a molecular weight of at least about 100 g / mol and useful for imparting a scent, aroma, essence, or fragrance, either alone or in combination with other fragrance raw materials. Typical PRMs include, in particular, alcohols, ketones, aldehydes, esters, ethers, nightlights, and alkenes such as terpenes. A general list of PRMs can be found in various references, such as “Perfume and Flavor Chemicals” Vol. I and II; Steffen Arctander Allured Pub. Co. (1994) and “Perfumes: Art, Science and Technology,” Miller, P.M. and Lamparsky, D., Blackie Academic and Professional (1994).

[0037] The fragrance in the core may contain a mixture of fragrance raw materials. The fragrance in the core may contain at least three, or at least four, or at least five, or at least six, or at least seven, or at least eight, or at least nine, or at least ten fragrance raw materials. The mixture of fragrance raw materials may provide a more complex and desirable aesthetic, and / or better fragrance performance or longevity, for example, at various touchpoints.

[0038] The fragrance in the core may contain fewer than approximately 50, or fewer than approximately 40, or fewer than approximately 30, or fewer than approximately 25, or fewer than approximately 20 fragrance ingredients. It may be desirable to limit the number of fragrance ingredients in the fragrance as a way to reduce or limit the complexity and / or cost of the formulation.

[0039] The fragrance may contain at least one naturally derived fragrance ingredient. Such ingredients may be desirable for sustainability / environmental reasons. The naturally derived fragrance ingredient may contain natural extracts or essences that may contain a mixture of PRMs. Examples of such natural extracts or essences include orange oil, lemon oil, rose extract, lavender, musk, patchouli, balsam essence, sandalwood oil, pine root oil, and cedar.

[0040] The core of the encapsulating agent of this disclosure may contain a partitioning denaturant. In addition to the encapsulated beneficial agent, the core may contain a partitioning denaturant in an amount greater than 0% and up to about 80%, preferably greater than 0% and up to about 50%, more preferably greater than 0% and up to about 30%, and most preferably greater than 0% and up to about 20%, based on the total weight of the core.

[0041] The distribution regulators are vegetable oil, modified vegetable oil, C4-C 24 The distribution regulator may include materials selected from the group consisting of fatty acid monoesters, diesters, and triesters, isopropyl myristate, dodecanophenone, lauryl laurate, methyl behenate, methyl laurate, methyl palmitate, methyl stearate, and mixtures thereof. The distribution regulator may preferably include isopropyl myristate or consist of isopropyl myristate. The modified vegetable oil may be esterified and / or brominated. The modified vegetable oil may preferably include castor oil and / or soybean oil. U.S. Patent Application Publication No. 20110268802, incorporated herein by reference, describes other distribution regulators that may be useful in the fragrance encapsulants described herein.

[0042] shell The encapsulating agent may include a shell. The shell may partially or completely enclose the core. The wall material may include an aminoplast. The aminoplast may include polyurea, polyurethane and / or polyurea urethane. The aminoplast may include an aminoplast copolymer, e.g., melamine formaldehyde, urea formaldehyde, cross-linked melamine formaldehyde, or mixtures thereof. The wall may contain melamine formaldehyde, and the shell may further include a coating as described below. The encapsulant may have a core containing a fragrance and a wall containing melamine formaldehyde and / or cross-linked melamine formaldehyde. The encapsulant may have a core containing a fragrance and a wall containing melamine formaldehyde and / or cross-linked melamine formaldehyde, poly(acrylic acid) and poly(co-butyl acrylate acrylate).

[0043] The shell may contain a polymer material. The polymer material may contain a (meth)acrylate material. As described above, fragrances with an acid value greater than 5.0 mg KOH / g have been found to perform remarkably well when encapsulated in a shell containing an acrylate material. The polymer material of the shell may be formed at least partially by a radical polymerization process.

[0044] The acrylate material of the shell may include (meth)acrylate materials selected from the group consisting of polyacrylate, polyethylene glycol acrylate, polyurethane acrylate, epoxy acrylate, polymethacrylate, polyethylene glycol methacrylate, polyurethane methacrylate, epoxy methacrylate, and mixtures thereof.

[0045] As used herein, references to the terms “(meth)acrylate” or “(meth)acrylic” should be understood to mean both the acrylate and methacrylate versions of a particular monomer, oligomer, and / or prepolymer. For example, “allyl (meth)acrylate” may refer to both allyl methacrylate and allyl acrylate; similarly, references to alkyl esters of (meth)acrylic acid may refer to both alkyl esters of acrylic acid and alkyl esters of methacrylic acid; and similarly, poly(meth)acrylate may refer to both polyacrylate and polymethacrylate. Poly(meth)acrylate materials include, for example, polyester poly(meth)acrylate, urethane and polyurethane poly(meth)acrylate (especially those prepared by the reaction of hydroxyalkyl(meth)acrylate with polyisocyanate or urethane polyisocyanate), methyl cyanoacrylate, ethyl cyanoacrylate, diethylene glycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, ethylene glycol di(meth)acrylate, allyl(meth)acrylate, glycidyl(meth)acrylate, (meth)acrylate-functionalized silicones, di-, tri-, and tetraethylene glycol di(meth)acrylate, dipropylene glycol di(meth)acrylate, polyethylene glycol di(meth)acrylate. This is intended to encompass a wide range of polymer materials, including acrylates, di(pentamethylene glycol) di(meth)acrylate, ethylene di(meth)acrylate, neopentyl glycol di(meth)acrylate, trimethylolpropane tri(meth)acrylate, ethoxylated bisphenol A di(meth)acrylate, bisphenol A di(meth)acrylate, diglycerol di(meth)acrylate, tetraethylene glycol dichloroacrylate, 1,3-butanediol di(meth)acrylate, neopentyl di(meth)acrylate, trimethylolpropane tri(meth)acrylate, polyethylene glycol di(meth)acrylate, and dipropylene glycol di(meth)acrylate, as well as various polyfunctional (meth)acrylates.Monofunctional acrylates, i.e., those containing only one acrylate group, may also be advantageously used. Typical monoacrylates include 2-ethylhexyl(meth)acrylate, 2-hydroxyethyl(meth)acrylate, cyanoethyl(meth)acrylate, 2-hydroxypropyl(meth)acrylate, p-dimethylaminoethyl(meth)acrylate, lauryl(meth)acrylate, cyclohexyl(meth)acrylate, tetrahydrofurfuryl(meth)acrylate, chlorobenzyl(meth)acrylate, aminoalkyl(meth)acrylate, various alkyl(meth)acrylates, and glycidyl(meth)acrylate. Mixtures of (meth)acrylates or their derivatives, as well as combinations of one or more (meth)acrylate monomers, oligomers, and / or prepolymers or their derivatives, and other copolymerizable monomers including acrylonitrile and methacrylonitrile, may also be used.

[0046] The main shell material may contain polyacrylate. The shell material may contain approximately 25% to 100% by weight of polyacrylate polymer, or approximately 50% to 100% by weight, or approximately 65% ​​to 100% by weight of polyacrylate polymer. The polyacrylate may also contain cross-linked polyacrylate polymer.

[0047] The (meth)acrylate material of the encapsulating agent may include a polymer derived from a material containing one or more polyfunctional acrylate moieties. The polyfunctional acrylate moieties may be selected from the group consisting of trifunctional acrylates, tetrafunctional acrylates, pentafunctional acrylates, hexafunctional acrylates, heptafunctional acrylates, and mixtures thereof. The polyfunctional acrylate moieties are preferably hexafunctional acrylates. The acrylate material may include a polyacrylate containing a moiety selected from the group consisting of an acrylate moiety, a methacrylate moiety, an amine acrylate moiety, an amine methacrylate moiety, a carboxylic acid acrylate moiety, a carboxylic acid methacrylate moiety, and combinations thereof, preferably an amine methacrylate moiety or a carboxylic acid acrylate moiety.

[0048] The (meth)acrylate material may include a material comprising one or more polyfunctional acrylates and / or polyfunctional methacrylate moieties. The ratio of the material comprising one or more polyfunctional acrylate moieties to the material comprising one or more methacrylate moieties may be about 999:1 to about 6:4, preferably about 99:1 to about 8:1, and more preferably about 99:1 to about 8.5:1.

[0049] Examples of polyfunctional acrylates include CN975 (hexafunctional aromatic urethane acrylate), CN9006 (hexafunctional aliphatic urethane acrylate), CN296, CN293, CN2295 (hexafunctional polyester acrylate oligomer or acrylic polyester), CN2282, CN294E, CN299 (tetrafunctional polyester acrylate oligomer or acrylic polyester), SR494, SR295, SR255 (tetrafunctional acrylate oligomer), and SR90 Examples of materials sold by Sartomer Inc. include 09, SR9011 (trifunctional methacrylate oligomer), SR929 (polyester urethane acrylate oligomer), SR9053 (acid ester trifunctional acrylate oligomer), CN989, CN9301 (aliphatic urethane acrylate), SR350, SR353 (trifunctional acrylate oligomer), SR9012 (trifunctional acrylate ester), and / or SR368 (tris(2-hydroxyethyl) isocyanurate triacrylate).

[0050] The acrylate material may be derived from monomers selected from hexafunctional acrylates, triacrylates, or mixtures thereof, preferably hexafunctional aromatic acrylates, isocyanurate triacrylates, or mixtures thereof, more preferably hexafunctional aromatic urethane acrylates, tris(2-hydroxyethyl) isocyanurate triacrylates, or mixtures thereof, because such materials have been found to be useful for producing robust capsules.

[0051] For example, the particle shell described herein may include a poly(meth)acrylate polymer containing a reaction product of at least one monomer or its oligomer. The monomer has a structure according to formula I,

[0052] [ka] In the formula, R 1 It is selected from C1 to C8, R 2is hydrogen or methyl, n is an integer from 1 to 3, and A is a cyclic structure selected from any of the formulas II to VI.

[0053] [ka]

[0054] The encapsulating shell may not substantially contain a melamine derivative. Examples of melamine derivatives include melamine monomers, such as polymers or other materials derived from melamine-formaldehyde materials. While not theoretically bound, it is thought that melamine-formaldehyde materials provide a relatively strong negative charge for encapsulating the shell, resulting in insufficient interaction and / or poor performance with quaternary ammonium ester compounds, and thus yielding certain compounds containing tryster quats and / or derived from triethanolamine.

[0055] The encapsulating agent may contain about 0.5% to about 40%, more preferably 0.8% to 5%, of the total weight of the encapsulating agent as an emulsifier. The emulsifier may be useful as a processing aid during the formation of the encapsulating agent. The emulsifier may be embedded in the shell and / or located on the shell. The emulsifier is selected from the group consisting of polyvinyl alcohol, carboxylated or partially hydrolyzed polyvinyl alcohol, methylcellulose, hydroxyethylcellulose, carboxymethylcellulose, methylhydroxypropylcellulose, salts or esters of stearic acid, lecithin, organic sulfonic acid, 2-acrylamido-2-alkylsulfonic acid, styrenesulfonic acid, polyvinylpyrrolidone, N-vinylpyrrolidone copolymer, polyacrylic acid, polymethacrylic acid, copolymer of acrylic acid and methacrylic acid, and water-soluble surfactant polymers that reduce the surface tension of water.

[0056] The emulsifier preferably contains polyvinyl alcohol. Preferably, the polyvinyl alcohol has at least one of the following properties or a mixture thereof: (i) a degree of hydrolysis of 70% to 99%, preferably 75% to 98%, more preferably 80% to 96%, more preferably 82% to 96%, most preferably 86% to 94%, and / or (ii) a viscosity of 2 mPa.s to 150 mPa.s, preferably 3 mPa.s to 70 mPa.s, more preferably 4 mPa.s to 60 mPa.s, and even more preferably 5 mPa.s to 55 mPa.s in a 4% aqueous solution at 20°C. Suitable polyvinyl alcohol materials may be selected from Selvol 540 PVA (Sekisui Specialty Chemicals, Dallas, TX), Mowiol 18-88 = Poval 18-88, Mowiol 3-83, Mowiol 4-98 = Poval 4-98 (Kuraray), Poval KL-506 = Poval 6-77 KL (Kuraray), Poval R-1130 = Poval 25-98 R (Kuraray), and Gohsenx K-434 (Nippon Synthetic Chemical Industry).

[0057] The encapsulating agents of this disclosure may include a coating. The shell may also include a coating, for example, the coating may be present on the outer surface of the shell. The encapsulant may be manufactured and then subsequently coated with a coating material. The coating may be useful as an adhesion aid. Non-limiting examples of coating materials include poly(meth)acrylate, poly(ethylene-maleic anhydride), polyamine, wax, polyvinylpyrrolidone, polyvinylpyrrolidone copolymer, polyvinylpyrrolidone-ethyl acrylate, polyvinylpyrrolidone-vinyl acrylate, polyvinylpyrrolidone methacrylate, polyvinylpyrrolidone / vinyl acetate, polyvinyl acetal, polyvinyl butyral, polysiloxane, poly(propylene-maleic anhydride), maleic anhydride derivatives, maleic anhydride derivative copolymers, polyvinyl alcohol, styrene-butadiene latex, gelatin, gum arabic, carboxymethylcellulose, carboxymethyl hydroxyethylcellulose, hydroxy Examples of materials selected from the group consisting of ethylcellulose, other modified celluloses, sodium alginate, chitosan, casein, pectin, modified starch, polyvinyl acetal, polyvinyl butyral, polyvinyl methyl ether / maleic anhydride, polyvinylpyrrolidone and its copolymers, poly(vinylpyrrolidone / methacrylamidopropyltrimethylammonium chloride), polyvinylpyrrolidone / vinyl acetate, polyvinylpyrrolidone / dimethylaminoethyl methacrylate, polyvinylamine, polyvinylformamide, polyallylamine, and copolymers of polyvinylamine, polyvinylformamide, and polyallylamine, as well as mixtures thereof, include, but are not limited to, materials. The coating material may be a cationic polymer. The coating material may contain chitosan.

[0058] The composition may include, as measured by the encapsulating agent shell thickness test method described herein, at least 75% of the encapsulating agent having an encapsulating agent shell thickness of about 10 nm to about 350 nm, about 20 nm to about 200 nm, or 25 nm to about 180 nm, according to the encapsulating agent shell thickness test method described herein.

[0059] Additional surfactants Liquid detergent compositions may further contain additional surfactants. These additional surfactants may be present in levels ranging from about 0.25% to about 50% by weight of the liquid detergent composition. The additional surfactants may be anionic, nonionic, cationic, zwitterionic, amphoteric, or combinations thereof. The additional surfactants may include alkyl sulfates, alkyl ethoxy sulfates (AES), alkylbenzene sulfonates, ethoxylated alcohol nonionic surfactants, amine oxides, methyl ester sulfonates, glycolipid surfactants, alkyl polyglucoside surfactants, or combinations thereof. The additional surfactants may be selected from the group consisting of alkyl ethoxy sulfates, alkylbenzene sulfonates, ethoxylated alcohol nonionic surfactants, amine oxide surfactants, and mixtures thereof. The additional surfactants may include linear alkylbenzene sulfonates, alkyl sulfates, alkyl ethoxylated sulfates, nonionic surfactants, or combinations thereof.

[0060] The liquid detergent composition may contain additional surfactants, including AES. The liquid detergent composition may also contain alkyl ethoxysulfates in about 1% by weight, 2% by weight, 3% by weight, 4% by weight, 5% by weight, 6% by weight, 7% by weight, 8% by weight, 9% by weight, or 10% by weight to about 5% by weight, 6% by weight, 7% by weight, 8% by weight, 9% by weight, 10% by weight, 12% by weight, 14% by weight, 16% by weight, 18% by weight, 20% by weight, 22% by weight, 24% by weight, 26% by weight, 28% by weight, or any combination thereof. The AES surfactant comprises multiple AES compounds, each AES compound containing an alkyl chain. The alkyl chain of a particular AES compound can be characterized by the total number of carbon atoms in the alkyl portion, also known as the alkyl chain length. A given amount of AES surfactant may contain various AES compounds having chain lengths that are within a certain proportion or distribution range. Therefore, a given amount or sample of AES can be characterized by the distribution of AES compounds having a particular chain length, and / or the weight-average number of carbon atoms in the alkyl moiety.

[0061] Examples of commercially available AES surfactants include AES with a weight-average chain length of 12-15, known as C12-15 AES, or AES with a chain length of 12-14, known as C12-14 AES. These are described as having a specific range of weight-average chain lengths, but materials within these ranges may also have carbon chain lengths outside the specified range. As long as the weight-average chain length of the AES material falls within the defined range, the material is included in the range even if it has some carbon chain lengths other than those specified.

[0062] Another AES surfactant suitable for use herein may contain a relatively high proportion of AES compounds having 15 carbon atoms in their alkyl chain ("C15 AES"). C15 AES may be desirable because the relatively long alkyl chain increases the hydrophobicity of the AES surfactant, thereby potentially resulting in improved stain removal, such as grease removal. The AES surfactant may contain C15 AES in amounts ranging from about 40% by weight, or about 45% by weight to about 70% by weight, or about 60% by weight, of the AES surfactant. C15 AES may constitute the main part of the AES surfactant, meaning that there is a greater weight of C15 AES surfactant than any other single type of AES surfactant. C15 AES may constitute at least half, or even the majority, of the weight of the AES surfactant.

[0063] AES surfactants may contain AES compounds having 14 carbon atoms in an alkyl chain ("C14 AES"), for example, at least about 1% by weight of C14 AES in the AES surfactant. AES surfactants may contain relatively limited amounts of C14 AES. For example, an AES surfactant may contain about 30% by weight or less, or about 25% by weight or less, or about 20% by weight or less, or about 15% by weight or less, or about 10% by weight or less of C14 AES in the AES surfactant. If a composition or surfactant system contains a relatively high proportion of C15 AES, it may be desirable to limit the amount of C14 AES, for example, for stability reasons.

[0064] AES surfactants may contain AES compounds having 13 carbon atoms in their alkyl chain ("C13 AES"). C13 AES may be desirable because the relatively short alkyl chain reduces the relative hydrophobicity of the AES surfactant, thereby allowing the AES surfactant to remove different types of dirt and / or be relatively more physically stable than more hydrophobic AES surfactants. An AES surfactant may contain C13 AES in up to about 15% by weight, or about 20% by weight, or about 25% to about 50% by weight, or about 40% by weight, or about 35% by weight of the AES surfactant, preferably about 15% to about 35% by weight. C13 AES may be the most or second most abundant AES compound in the AES surfactant; for example, an AES surfactant may contain the most C15 AES and C13 AES, both of which are present in relatively high concentrations compared to AES of other chain lengths.

[0065] AES surfactants may contain AES compounds having 12 carbon atoms in an alkyl chain ("C12 AES"). AES surfactants may contain at least about 1% by weight, or at least about 3% by weight, or at least about 5% by weight, or at least about 10% by weight of C12 AES. AES surfactants may contain about 20% by weight or less, or about 15% by weight or less, or about 12% by weight or less, or about 10% by weight or less, or about 5% by weight or less of C12 AES. AES surfactants may contain about 1% by weight, or from about 3% by weight to about 20% by weight, or from about 15% by weight, preferably about 3% by weight to about 15% by weight of C12 AES. C12 AES may be desirable, for example, to counteract the hydrophobicity of C15 AES, resulting in a broader cleaning profile and / or a better stability profile.

[0066] The AES surfactant may contain, in addition to the amount of the C15 surfactant described above, at least 1% by weight of each of the C12 AES, C13 AES, and C14 AES surfactants. The AES surfactant of this disclosure may contain about 30% to about 60% by weight of the AES surfactant, preferably a mixture thereof, of C12 AES, C13 AES, C14 AES, or a mixture thereof.

[0067] The AES surfactant may comprise about 1% to about 20% by weight of C12 AES, about 25% to about 50% by weight of C13 AES, about 1% to about 10% by weight of C14 AES, and about 45% to about 60% by weight of C15 AES (each weight % is by weight of the AES surfactant), and may be characterized by an alkyl chain length having an average molecular weight of about 205 to about 220, preferably about 208 to about 218, provided that the weight % provided can total about 95% to about 100% by weight.

[0068] AES surfactants may contain AES compounds having 16 carbon atoms in the alkyl chain ("C16 AES"). For example, the amount of C16 present may be limited because longer chain lengths may cause phase instability. The AES surfactants of this disclosure may contain about 0.1% to less than 5% by weight of the AES surfactant, or less than 3% by weight, or less than 1.5% by weight, or less than 1% by weight of C16 AES.

[0069] AES surfactants can be characterized by the weight-average molecular weight of the chain length of the AES compounds in their distribution. Overall, AES surfactants may be characterized by a lower-than-expected weight-average molecular weight chain length, considering the relatively high proportion of C15 AES.

[0070] The weight-average molecular weight of a chain can be determined by finding the weight-average molecular weight of the aliphatic alcohol consisting of an alkyl chain and a hydroxyl group. Calculating the molecular weight of a chain in this manner offers several advantages. For example, AES surfactants are typically synthesized from such aliphatic alcohols that function as raw materials before being subjected to alkoxylation (e.g., ethoxylation) and sulfation to reach the final AES compound. Therefore, relevant information regarding the aliphatic alcohol raw materials is typically available from the raw material supplier and / or the AES manufacturer. In addition, reporting the molecular weight based on the aliphatic alcohol containing the alkyl chain, rather than the molecular weight of the AES surfactant itself, helps eliminate the uncertainty arising from variable alkoxylation. For example, a C15 AES material may contain several molecules with 1 mole of ethoxylation, as well as other molecules with 2 and / or 3 moles of ethoxylation.

[0071] For example, the molecular weight of the alkyl chain of a C15 AES compound is given by the following empirical formula: C 15 H 31 It is based on C15 aliphatic alcohols that may contain OH groups. Such C15 aliphatic alcohols have a molecular weight of approximately 228 daltons. For convenience, Table 4 shows the molecular weights of some exemplary aliphatic alcohols.

[0072] [Table 3]

[0073] AES surfactants may be characterized by chain lengths having a weight-average molecular weight of about 200, or about 205, or about 208, or about 210, or about 211, or about 214 to about 220, or about 218, or about 215 daltons, where the molecular weight of a particular alkyl chain is based on the molecular weight of the aliphatic alcohol containing the alkyl chain (i.e., the aliphatic alcohol consisting of an alkyl chain and a hydroxyl group). AES surfactants may be characterized by chain lengths having a weight-average molecular weight of about 200 to about 220, or about 210 to about 220, or about 211 to about 218 daltons. AES surfactants may be characterized by chain lengths having a weight-average molecular weight of about 208 to 215 daltons or less. AES characterized by chain lengths with relatively low weight-average molecular weights (e.g., 208 to 215 daltons) may be particularly preferred in detergent compositions having a relatively large amount of surfactant (e.g., more than 20% by weight) because it promotes improved physical stability.

[0074] AES surfactants can also be characterized by their degree of ethoxylation. Within a population of AES compounds, AES molecules can have a variety of degrees of ethoxylation. Therefore, a given amount or sample of AES can also be characterized by its weight-average degree of ethoxylation, which is reported as the number of moles of ethoxy groups (-O-CH2-CH2) per mole of AES. The AES surfactants of this disclosure may be characterized by a weight-average degree of ethoxylation of about 0.5 to about 5, or about 1 to about 3, or about 1.5 to about 2.5.

[0075] AES may contain at least some unethoxylated alkyl sulfate ("alkyl sulfate, AS") surfactants. Unethoxylated AS may be present as a result of incomplete reactions during the ethoxylation process and / or added as a separate component. For the purposes of this disclosure, (unethoxylated) AS is considered part of the AES surfactant when determining its concentration, chain length, molecular weight, and / or degree of ethoxylation.

[0076] AES surfactants may include AES compounds having linear alkyl chains, AES compounds having branched alkyl chains, or mixtures thereof. AES surfactants may include AES surfactants branched at the C2 position, where C2 is the second carbon from the ethoxysulfate head group (i.e., the carbon adjacent to the ethoxysulfate head group is at the C1 position). AES surfactants may contain about 10% to about 30% by weight of AES surfactants that are branched at the C2 position. Branched alkyl chains can improve and / or broaden the cleaning profile of AES surfactants. Linear alkyl portions of AES compounds may also be preferred. At least about 50% by weight, or at least about 75% by weight, or at least about 90% by weight, or at least about 95% by weight, or about 100% by weight of AES compounds may have alkyl chains that are linear alkyl chains. AES may comprise a mixture of C15 AES, where at least 60% by weight of C15 AES is linear and at least 10% by weight of C15 AES is branched, preferably at the C2 position. AES may comprise a mixture of C13 AES, where at least 60% by weight of C13 AES is linear and at least 10% by weight of C13 AES is branched, preferably at the C2 position.

[0077] As described above, AES compounds are typically produced by sulfating ethoxylated aliphatic alcohols. First, an aliphatic alcohol may be provided and then ethoxylated according to known methods. Thus, an AES compound, or at least the alkyl chain of an AES compound, can be described in terms of its source of origin, e.g., oil or aliphatic alcohol. The AES compounds of this disclosure may include alkyl chains derived from non-petroleum sources, preferably natural sources. The AES of this disclosure may include mixtures of AES containing naturally derived alkyl chains and AES containing alkyl chains of synthetically derived (e.g., petroleum-derived) AES, such mixtures may be useful in considering supply chain variability, disruption, and / or price fluctuations, for example, so that shortages of one type of AES can be back-filled by another type.

[0078] Natural sources include plant or animal sources, preferably oils derived from plants. Typical non-limiting examples of vegetable oils include canola oil, rapeseed oil, coconut oil, corn oil, cottonseed oil, olive oil, palm oil, peanut oil, safflower oil, sesame oil, soybean oil, sunflower oil, linseed oil, palm kernel oil, tili oil, jatropha oil, mustard oil, tea berry oil, camellia oil, castor oil, or mixtures thereof. Suitable feedstock oils typically include metathesis oils formed by a metathesis reaction in the presence of a suitable metathesis catalyst. The alkyl portion may be derived from coconut oil, palm kernel oil, or a mixture thereof, preferably coconut oil, palm kernel oil, or a mixture thereof. Such origins are desirable for environmental and / or sustainability reasons because they do not depend on fossil fuels. Furthermore, the alkyl chains of AES compounds derived from natural sources typically contain an even number of carbon atoms.

[0079] Other sources of alkyl chains (e.g., starting alcohols) may include commercially available alcohols, such as those sold by Shell (e.g., under the trademark name Neodol(trademark), e.g., Neodol(trademark) 23, Neodol(trademark) 3, Neodol(trademark) 45, and / or Neodol(trademark) 5), and / or those sold by Sasol (e.g., Lial(trademark), Isalchem(trademark), Safol(trademark), etc.).

[0080] The AES does not have to be derived from the Fischer-Tropsch process. The AES in this disclosure may be obtained from the well-known Shell-modified oxo process. The AES in this disclosure may include an AES obtained from the Ziegler process.

[0081] AES can exist in acid form, salt form (e.g., neutralized), or mixtures thereof. AES in salt form may be an alkali metal salt, preferably a sodium salt, ammonium salt, or alkanolamine salt.

[0082] Additional surfactants may include alkylbenzene sulfonate surfactants. The alkyl group may contain about 9 to about 15 carbon atoms in a straight-chain (linear) or branched-chain structure. The alkyl group may be linear. Such linear alkylbenzene sulfonates are known as "linear alkylbenzene sulfonate, LAS". Linear alkylbenzene sulfonates may have an average number of carbon atoms of about 11 to 14 in the alkyl group. Linear alkylbenzene sulfonates may have an average number of carbon atoms of about 11.8 in the alkyl group and may be abbreviated as C11.8 LAS. Linear alkylbenzene sulfonates may mainly have 12 carbon atoms in the alkyl group, with more than 50% being C12, more than 75% being C12, and more than 96% being C12. Alkylbenzene sulfonates may exist at least partially as alkali metal salts, preferably sodium salts, or amine salts, such as ethanolamine salts such as monoethanolamine salt.

[0083] Additional surfactants may include amine oxide surfactants. Preferred amine oxides are alkyldimethylamine oxide or alkylamidopropyldimethylamine oxide, more preferably alkyldimethylamine oxide, and especially cocodimethylamine oxide. Amine oxides may have linear or medium-chain branched alkyl moieties. Typical linear amine oxides include water-soluble amine oxides containing one R1 C8-18 alkyl moiety and two R2 and R3 moieties selected from the group consisting of C1-3 alkyl groups and C1-3 hydroxyalkyl groups. Preferably, the amine oxide is characterized by the formula R1-N(R2)(R3)O, where R1 is a C8-18 alkyl group and R2 and R3 are selected from the group consisting of methyl, ethyl, propyl, isopropyl, 2-hydroxyethyl, 2-hydroxypropyl, and 3-hydroxypropyl. Examples of linear amine oxide surfactants include linear C10-C18 alkyldimethylamine oxide and linear C8-C12 alkoxyethyl dihydroxyethylamine oxide. Preferred amine oxides include linear C10, linear C10-C12, and linear C12-C14 alkyldimethylamine oxides. As used herein, “medium-chain branched” means that the amine oxide has one alkyl moiety having n1 carbon atoms, and one alkyl branch in this alkyl moiety has n2 carbon atoms. The alkyl branch is located on the nitrogen to alpha carbon on the alkyl moiety. This type of branching of amine oxide is also known in the art as internal amine oxide. The compositions of this disclosure may contain amine oxide in an amount of about 0.1% to about 5% by weight, or about 3% by weight, or about 1% by weight of the composition.

[0084] The additional surfactant may include a nonionic surfactant. The nonionic surfactant may be an ethoxylated alcohol. The nonionic surfactant has the formula R(OC2H4) nIt may have OH, wherein R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 16 carbon atoms, and the average value of n is from about 5 to about 15. For example, the nonionic surfactant may be selected from ethoxylated alcohols having on average about 12 to 14 carbon atoms in the alcohol (alkyl part) and an average degree of ethoxylation of from about 7 to about 9 moles of ethylene oxide per mole of alcohol.

[0085] As additional non-limiting examples, the formula R(OC2H4) n OH (wherein R includes an alkylphenyl radical having an alkyl group containing from about 8 to about 12 carbon atoms and the average value of n is from about 5 to about 15), ethoxylated alkylphenols, C such as NEODOL® nonionic surfactants from Shell 12 ~C 18 alkyl ethoxylates; C 14 ~C 22 mid-chain branched alcohols; C 14 ~C 22 mid-chain branched alkyl ethoxylates, BAE x (wherein x is from 1 to 30). The nonionic ethoxylated alcohol surfactants herein may further contain residual alkoxylation catalysts, which can be regarded as residues or impurities from the reaction. It may further contain various impurities or by-products of the alkoxylation reaction. The impurities can vary depending on the catalyst used and the reaction conditions. Examples of impurities include alkyl ethers, such as dialkyl ethers like didodecyl ether, glycols, such as diethylene glycol, triethylene glycol, pentaethylene glycol, and other polyethylene glycols.

[0086] The nonionic ethoxylated alcohol may be a narrow range of ethoxylated alcohols. The narrow range of ethoxylated alcohols may have the following general formula (I),

[0087]

Chemical formula

[0088] The composition may contain approximately 10 average values ​​of n. The composition may have the following ranges for each of the following n: n=0 is up to 5%, n=1, 2, 3, 4, 5 are each up to 2%, n=6 is up to 4%, n=7 is up to 10%, n=8 is 12% to 20%, n=9 is 15% to 25%, n=10 is 15% to 30%, n=11 is 10% to 20%, n=12 is up to 10%, and n>12 is up to 10%. The composition may also have n between 9 and 10 at 30% to 70%. The composition may also have n between 8 and 11 at more than 50% of its composition.

[0089] The alcohol ethoxylates described herein are typically not single compounds as suggested by their general formula (I), but rather alcohol ethoxylates comprise mixtures of several congeners having varying polyalkylene oxide chain lengths and molecular weights. Among the congeners, those with a number of total alkylene oxide units per mole of alcohol that is close to the most dominant alkylene oxide adduct are desirable, while congeners with a number of total alkylene oxide units that is much less or much more than that of the most dominant alkylene oxide adduct are less desirable. In other words, “narrow range” or “peaked” alkoxylated alcohol compositions are desirable. “Narrow range” or “peaked” alkoxylated alcohol compositions refer to alkoxylated alcohol compositions with a narrow distribution of the number of alkylene oxide addition moles.

[0090] Alkoxylated alcohol compositions with a "narrow range" or "peaked" distribution may be desirable for selected applications. Congeners within the distribution range of the selected purpose may have an appropriate lipophilic-hydrophilic balance for the selected application. For example, in the case of an ethoxylated alcohol product containing an average ratio of 5 ethylene oxide (EO) units per molecule, congeners with the desired lipophilic-hydrophilic balance may be in the range of 2EO to 9EO. Congeners with shorter EO chain lengths (<2EO) or longer EO chain lengths (>9EO) may be too lipophilic or too hydrophilic for applications where surfactants with an α=5 EO / alcohol ratio are typically selected, thus being undesirable for applications where such longer or shorter congeners utilize this product. Therefore, it is advantageous to develop alkoxylated alcohols with a peaked distribution.

[0091] The narrow range of alkoxylated alcohol compositions of this disclosure may have an average ethoxylation degree in the range of about 0 to about 15, for example, about 4 to about 14, about 5 to 10, about 8 to 11, and about 6 to 9. The narrow range of alkoxylated alcohol compositions of this disclosure may have an average ethoxylation degree of 10. The narrow range of alkoxylated alcohol compositions of this disclosure may have an average ethoxylation degree of 9. The narrow range of alkoxylated alcohol compositions of this disclosure may have an average ethoxylation degree of 5.

[0092] Non-limiting examples of cationic surfactants include quaternary ammonium surfactants, which may have 26 or fewer carbon atoms, such as alkoxylate quaternary ammonium (AQA) surfactants; dimethylhydroxyethyl quaternary ammonium surfactants; dimethylhydroxyethyl laurylammonium chloride; polyamine cationic surfactants; cationic ester surfactants; and amino surfactants, such as amidopropyldimethylamine (APA). The compositions of this disclosure do not have to substantially contain cationic surfactants and / or surfactants that become cationic at pH less than 7 or pH less than 6, because cationic surfactants may negatively interact with other components such as anionic surfactants.

[0093] Examples of zwitterionic surfactants include secondary and tertiary amine derivatives, heterocyclic secondary and tertiary amine derivatives, or derivatives of quaternary ammonium compounds, quaternary phosphonium compounds, or tertiary sulfonium compounds. Zwitterionic surfactants include betaines containing alkyldimethyl betaine and cocodimethylamidopropyl betaine, as well as C8-C 18 (For example, C 12 ~C 18 ) Amine oxide, and N-alkyl-N,N-dimethylamino-1-propanesulfonate (alkyl group is C8~C 18 or C 10 ~C 14 It may contain sulfo and hydroxybetaines such as (or may contain)

[0094] Detergent auxiliary Liquid detergent compositions may contain one or more auxiliary components, for example, at levels ranging from about 0.1% to about 50%. Examples of auxiliary components include: color care agents; organic solvents; cosmetic dyes; color dyes; leuco dyes; opacifying agents such as those marketed under the Acusol brand name; glossing agents including FWA49, FWA15, and FWA36; dye transfer inhibitors including PVNO, PVP, and PVPVI dye transfer inhibitors; builders including citric acid and fatty acids; chelating agents; enzymes; fragrance capsules; preservatives; antioxidants such as potassium sulfite or potassium bisulfite, and those marketed under the brand name Ralox; and Tinosan, available from BASF. Antibacterial and antiviral agents including 4,4'-dichloro-2-hydroxydiphenyl ether such as HP100; anti-mite active substances such as benzyl benzoate; structuring agents including hydrogenated castor oil; silicone-based defoaming materials; inorganic electrolytes such as sodium chloride, potassium chloride, magnesium chloride, and calcium chloride, and related sodium sulfate, potassium sulfate, magnesium sulfate, and calcium sulfate salts; and organic electrolytes such as sodium, potassium, magnesium, and calcium salts of carbonates, bicarbonates, and carboxylates such as formate, citrate, and acetate; sodium hydroxide, hydrogen chloride, Examples include pH adjusters containing alkanolamines, including monoethanolamine, diethanolamine, triethanolamine, and monoisopropanolamine; probiotics; sanitizing agents; quaternary ammonium salts such as zinc ricinoleate, thymol, and Bardac®; polyethyleneimines (such as Lupasol® from BASF) and their zinc complexes; silver and silver compounds; cationic biocides including octyldecyldimethylammonium chloride; dioctyldimethylammonium chloride; didecyldimethylammonium chloride; dispersants; cleaning polymers; glucans; or mixtures thereof. For example, detergent auxiliaries include enzymes, enzyme stabilizers, builders, colorants, stain inhibitors, bleaches, or combinations thereof.

[0095] Organic solvents may include alcohols and / or polyols. For example, organic solvents may include ethanol, propanol, isopropanol, sugar alcohols, glycols, glycol ethers, or combinations thereof. Organic solvents may include polyethylene glycol, particularly low molecular weight polyethylene glycols such as PEG 200 and PEG 400; diethylene glycol; glycerol; 1,2-propanediol; polypropylene glycols including dipropylene glycol and tripropylene glycol, and low molecular weight polypropylene glycols such as PPG400; or mixtures thereof.

[0096] Chelating agents may include, for example, EDDS, HEDP, GLDA, DTPA, DTPMP, DETA, EDTA, MGDA, or mixtures thereof. Chelating agents may be biodegradable. Examples of biodegradable chelating agents include NTA, IDS, EDDG, EDDM, HIDS, HEIDA, HEDTA, DETA, or combinations thereof.

[0097] The enzymes may include, for example, proteases, amylases, cellulases, mannanases, lipases, xyloglucanases, pectin lyases, nuclease enzymes, or mixtures thereof.

[0098] Examples of cleaning polymers include those that can help clean stains or dirt from clothing and / or prevent these stains from re-adhering to clothing during washing. Examples include optionally modified carboxymethylcellulose, modified polyglucans, poly(vinylpyrrolidone), poly(ethylene glycol), poly(vinyl alcohol), poly(vinylpyridine-N-oxide), poly(vinylimidazole), polycarboxylates such as polyacrylate, maleic acid / acrylic acid copolymers, and lauryl methacrylate / acrylic acid copolymers.

[0099] The composition may comprise one or more amphiphilic cleansing polymers. Such polymers have a balanced combination of hydrophilic and hydrophobic properties to remove grease particles from fabrics and surfaces. Suitable amphiphilic alkoxylated grease cleansing polymers comprise a core structure and a plurality of alkoxylate groups bonded to the core structure. These may comprise alkoxylated polyalkyleneimines, particularly ethoxylated polyethyleneimines, or polyethyleneimines having an inner polyethylene oxide block and an outer polypropylene oxide block. Typically, these can be incorporated into the composition of the present invention in amounts of 0.005% to 10% by weight, generally 0.5% to 8% by weight.

[0100] water The detergent composition may also contain water. Water may be present at a level of about 5% to about 95% by weight of the composition.

[0101] pH The detergent composition may have a pH of about 5.0 to about 12, preferably 6.0 to 10.0, and more preferably 8.0 to 10, and the pH of the detergent composition is measured as a 10% dilution in desalinated water at 20°C.

[0102] viscosity Liquid detergent compositions may be in the form of aqueous solutions, homogeneous dispersions, or suspensions. Such solutions, dispersions, or suspensions have acceptable phase stability. Liquid detergent compositions are available at 1 to 1500 centipoise (1 to 1500 mPa) at 20s⁻¹ and 21°C. * s), more preferably 100-1000 cmpoise (100-1000 mPa) * s), most preferably 200-500 centipoise (200-500 mPa) *It may have a viscosity of s). Viscosity can be measured by conventional methods. Viscosity may also be measured using an AR550 rheometer manufactured by TA instruments, which uses a plate steel spindle with a diameter of 40 mm and a gap size of 500 μm. The high shear viscosity at 20 s⁻¹ and the low shear viscosity at 0.05 s⁻¹ can be obtained from a logarithmic shear rate sweep of 0.1 s⁻¹ to 25 s⁻¹ for 3 minutes at 21°C. The preferred rheology described herein can be obtained by using an internal structural agent together with the detergent component or by using an external rheology modifier. More preferably, the laundry care composition, e.g., liquid detergent composition, has a viscosity at high shear rates of about 100 centipoise to 1500 centipoise, more preferably 100 to 1000 cps.

[0103] Preparation of composition Liquid compositions can be prepared by combining their components in any convenient order and mixing, for example, stirring, the resulting combination of components to form a phase-stable liquid laundry care composition. In the process of preparing such a composition, a liquid matrix can be formed containing at least the majority, or even substantially all, of the liquid components, such as a nonionic surfactant, a non-surfactant liquid carrier, and other optionally selected liquid components, and the liquid components are thoroughly mixed by applying shear stirring to this combination of liquids. For example, high-speed stirring with a mechanical stirrer can be useful. While maintaining shear stirring, substantially all of any anionic surfactant and components in solid form can be added. The stirring of the mixture can be continued and, if necessary, increased to form a solution or homogeneous dispersion of insoluble solid particles in the liquid phase. After some or all of the solid-form substances have been added to this stirred mixture, particles of any enzymatic substances to be included, such as enzyme prills, can be incorporated. As a variation of the composition preparation procedure described above, one or more solid components may be added to the stirred mixture as a solution or slurry of particles pre-mixed with one or more trace amounts of liquid components. After all the composition components have been added, the mixture is stirred for a sufficient amount of time to form a composition having the required viscosity and phase stability. In most cases, this involves stirring for a period of about 30 to 60 minutes.

[0104] combination 1. A liquid detergent composition, a) A first surfactant comprising, in an amount of about 1% to about 30% by weight of the composition, a mixture of surfactant isomers of formula 1 and a surfactant of formula 2,

[0105] [ka] Approximately 50% to 100% by weight of the first surfactant is an isomer having m+n=11, approximately 25% to 50% of the mixture is the surfactant isomer of formula 1 having n=0, and approximately 0.001% to 25% by weight of the first surfactant is the surfactant of formula 2, where X is the hydrophilic portion. b) An encapsulating agent comprising a shell and a core, comprising about 0.1% to about 5% by weight of the composition, wherein the shell comprises polyacrylate and the core comprises a fragrance. c) A liquid detergent composition comprising a detergent auxiliary agent. 2. The liquid detergent composition according to claim 1, wherein the liquid detergent composition has a higher dry fabric odor, preferably 10% higher, than a combination of scores of a first reference composition containing a first surfactant but not an encapsulating agent and a second reference composition containing an encapsulating agent but not the first surfactant. 3. The liquid detergent composition according to claim 1 or 2, wherein the liquid detergent composition has a higher crushed fabric odor, preferably 10% higher, than a combination of scores of a first reference composition containing a first surfactant but not an encapsulating agent and a second reference composition containing an encapsulating agent but not the first surfactant. 4. A liquid detergent composition according to any one of 1 to 3, wherein the weight ratio of the first surfactant to the encapsulating agent is about 300:1 to about 2:1, preferably about 35:1 to about 5:1. 5. A liquid detergent composition according to any one of 1 to 4, further comprising an additional surfactant. 6. The additional surfactant includes linear alkylbenzene sulfonates, alkyl sulfates, alkyl ethoxylated sulfates, nonionic surfactants, or combinations thereof. 5 The liquid detergent composition described above. 7. A liquid detergent composition according to any one of 1 to 6, wherein the detergent auxiliary comprises an enzyme, an enzyme stabilizer, a builder, a colorant, a stain re-adhesion inhibitor, a bleach, or a combination thereof. 8. A liquid detergent composition according to any one of 1 to 7, wherein n=1 is a mixture of surfactant isomers of formula 1 in an amount of about 15% to about 40% by weight of the first surfactant. 9. A liquid detergent composition according to any one of 1 to 8, wherein a mixture of surfactant isomers of Formula 1, in an amount of about 60% to about 90% by weight of the first surfactant, has n < 3. 10. A liquid detergent composition according to any one of 1 to 9, wherein about 90% to about 100% by weight of the first surfactant is a surfactant isomer having m+n=11. 11. A liquid detergent composition according to any one of 1 to 10, wherein X contains sulfate. 12. A liquid detergent composition according to any one of 1 to 11, further comprising about 10% to about 90%, preferably about 15% to about 85%, of water. 13. A liquid detergent composition according to any one of 1 to 12, wherein the shell of the encapsulating agent has a thickness of about 60 nanometers to about 200 nanometers. 14. A liquid detergent composition according to any one of 1 to 13, wherein the shell wall contains about 70% or more, preferably about 90% or more, aliphatic urethane acrylate polymer. [Examples]

[0106] Example 1: Preparation of branched C15 alcohol product The homogeneous rhodium organophosphorus catalyst used in this embodiment is prepared in a high-pressure stainless steel stirred autoclave. 0.027 wt% Rh(CO)2ACAC ((acetylacetonato)dicarbonylrhodium(I)), 1.36 wt% tris(2,4-di-t-butylphenyl) phosphite ligand, and 98.62 wt% Synfluid® PAO 4 cSt (Chevron Phillips Chemical Company LP, POBox4910, The Woodlands, TX 77387-4910, Tel. (800)231-3260) inert solvent were added to the autoclave. The mixture was heated at 80°C for 4 hours in a CO / H2 atmosphere and under a pressure of 2 bar (g) to produce an activated rhodium catalyst solution (109 ppm rhodium, P:Rh molar ratio = 20). A C14 linear alpha-olefin starting material (1-tetradecene) from Chevron Phillips Chemical Company LP (AlphaPlus® registered trademark 1-tetradecene, manufactured by Chevron Phillips Chemical Company LP (POBox 4910, The Woodlands, TX 77387-4910, Tel. (800)231-3260)) was added. The resulting mixture had a rhodium concentration of approximately 30 ppm. The 1-tetradecene linear alpha-olefin was then isomerized at 80°C for 12 hours in a CO / H2 atmosphere and at a pressure of 1 bar (g). The isomerized olefin was then hydroformylated at 70°C for 8 hours in a CO / H2 atmosphere and at a pressure of 20 bar (g). The resulting reaction product was flash-distilled at 150-160°C and 25 millibars to recover the rhodium catalyst solution as the bottom product and the branched C15 aldehyde top product. Next, the recovered rhodium catalyst solution was used again to complete the second 1-tetradecene batch isomerization (4 hours) and hydroformylation (6 hours). The C15 aldehyde products obtained from the two batches were combined to obtain a branched C15 aldehyde product containing the following:

[0107] [Table 4]

[0108] The weight percentage of branching in the branched C15 aldehyde product was 87.8%.

[0109] The branched C15 aldehyde product was hydrogenated in a high-pressure Inconel 625 stirred autoclave at 150°C and a hydrogen pressure of 20 bar(g). The hydrogenation catalyst used was Raney® Nickel 3111 (WRGrace & Co., 7500 Grace Drive, Columbia, MD21044, US, Tel. 1-410-531-4000) used at a 0.25 wt% loading. The aldehyde was hydrogenated for 10 hours, and the resulting reaction mixture was filtered to produce a branched C15 alcohol product containing the following:

[0110] [Table 5]

[0111] The weight percentage of 2-alkyl branching in the branched C15 alcohol product was 83.6%.

[0112] Example 2. Synthesis of narrowly branched pentadecanol (C15) sulfate using a drip-membrane sulfate reactor (Branched alkyl sulfate Example Z) The alcohol obtained from Example 1 was sulfated in a falling film using a Chemithon single 15 mm × 2 m tubular reactor with SO3 produced from a sulfur combustion gas plant operating at 5.5 lb / hour of sulfur, producing 3.76% SO3 by volume. The alcohol feed rate was 17.4 kg / hour and the feed temperature was 83°F. The conversion of the alcohol to the alcohol sulfate acid mixture was achieved with 97% integrity. Neutralization with 50% sodium hydroxide was completed to 0.54% excess sodium hydroxide at ambient process temperature. The C15 narrow branched alcohol sulfate paste was neutralized with 30 gallons of sodium. Analysis by standard cationic SO3 titration determined the final mean product activity to be 74.5%. The mean non-sulfating level was 2.65% w / w.

[0113] [Table 6] * Depending on the weight of the starting alcohol ** By weight of 2-alkyl branched C15 alcohol

[0114] [Table 7]

[0115] [Table 8]

[0116] [Table 9] 1 PAC PMC CN975, available from Sartomer Inc. 2 Branched alkyl sulfate example Z, 3 C12-15EO2.5S alkylethoxysulfate, available from P&G Chemicals, with the alkyl portion of AES having a molecular weight of 211-218 Daltons. 4High C12 approximately 96% linear alkylbenzene sulfonate supplied by P&G Chemicals, 5 C12 / C14 alkyl sulfates supplied by P&G Chemicals, 6 The Surfonic L24-9, which is sold commercially by Huntsman, 7 The DISSOLVINE GL-47-S, which is commercially available from AkzoNobel, 8 Citrosol 502, available from Archer Daniels Midland. 9 Preferenz, which is sold commercially by DuPont, 10 Disodium tetraborate pentahydrate, commercially supplied by Univar Solutions, 11 The PE-20, which is commercially available from BASF, 12 DOWSIL AF-8017, a foam inhibitor sold by Dow.

[0117] Comparative examples and examples of the present invention are prepared by combining all the raw materials to obtain comparative composition A, except that all of the foam inhibitors, hydrogenated castor oil, and water are omitted in comparative compositions B to G and compositions 1 to 5 of the present invention in order to leave space (referred to as holes) for the addition of branched alkyl sulfates and encapsulating agents. The following raw materials are rapidly mixed in a mixing impeller for about 60 minutes to achieve a vortex: water, solvent, surfactant, stabilizer, borax, neutralizer, builder, chelating agent, polymer, and enzyme to yield a stable one-phase liquid.

[0118] To prepare comparative compositions B-G and compositions 1-5 of the present invention, branched alkyl sulfate for balancing, encapsulating foam inhibitor, hydrogenated castor oil, and water were added to the top of comparative composition A (with holes) to achieve the desired levels. A consistent pH of 8.4-8.7 was measured for all tested formulations.

[0119] method Fabric headspace analysis method The method involves using a turgotometer to simulate fabric washing in a washing machine. Terry fabric was obtained from Calderon (Indianapolis, IN, USA). The fabric was stripped using two wash-and-rinse cycles with 48g of AATCC detergent in soft water at 140°F, and two wash-and-rinse cycles without the product in soft water at 140°F. Pre-conditioned fabric was produced using three detergent / LFE cycles with 85g of unscented / fragrance-encapsulating detergent and 48.5g of liquid unscented / fragrance-encapsulating fabric enhancer. Each cycle was performed with 7gpg of water at 90°F wash / 60°F rinse.

[0120] The washing tests consisted of four internal replicas and three external replicas for each treatment A-L described below (Table 2). Each washing test included a ratio of 18.93 L of water to 48.48 g of the liquid detergent test composition. The test fabrics were stirred for 12 minutes at 25°C and 7 US gpg, rinsed for 3 minutes in 25°C water at 7 US gpg, and centrifuged. After rinsing, the fabrics were dried at 145°F for 30 minutes. Before analyzing the fabrics, they were exposed to 73°F and 50% humidity for 4 hours. GC-MS headspace analysis was performed on each fabric sample using the method described below.

[0121] Fabric headspace analysis will be performed using the solid-phase microextraction gas chromatography-mass spectrometry (SPME GC MS) method described below. Generally, there is a correlation between the concentration of fragrance encapsulants on the fabric and the intensity of the fragrance (measured by headspace analysis). Headspace analysis of fragrance encapsulants will be performed on treated 100% cotton terry towels (30.5cm x 30.5cm, RN37000ITL, available from Calderon Textiles, LLC, Indianapolis, IN, USA) prepared and processed according to the fabric preparation method described above.

[0122] Headspace analysis was performed on a total of 12 fabric samples (four processed fabrics were obtained from each of three different washing cycles). Approximately eight 1 cm dot test fabrics were placed in 20 mL headspace sample vials (#24694, available from Restek (Bellefonte, PA)) and the vials were capped (#093640-094-00, available from Gerstel (Linthicum, MD)). The dry fabrics were equilibrated for 4 hours in a room at a constant temperature and humidity of 21°C and 50% RH before capping. The crushed fabrics were uncapped using an instrument, and then the rods were lowered to a weight equal to 67 psi. The pressure was applied for 10 seconds, and then a 10-second wait was made before capping the vials.

[0123] The sample vials are then loaded onto a Gerstel MPS2 autosampler (Gerstel Inc., Linthicum, MD, USA). Before headspace analysis, each sample is pre-conditioned at 65°C for 10 minutes. The headspace is extracted into an Agilent 7890B / 5977A GC-MS system (Agilent Technologies, Santa Clara, CA, USA) equipped with Supelco 50 / 30 micrometer DVB / CAR / PDMS 23Ga solid-phase microextraction fibers (Supelco Inc., Bellefonte, PA, USA). GC analysis is performed on an electrodeless capillary column (DB-5MS UI, 30 m (nominal diameter), 0.25 mm (nominal diameter), 25 micrometer thickness), and headspace components (i.e., fragrance raw materials) are monitored by mass spectrometry (EI, 70 eV detector). Headspace intensity is calculated using single-point calibration of the fragrance raw materials. The total headspace concentration for each vial is calculated from the sum of the concentrations of each detected fragrance ingredient. The average headspace is taken for 12 treated fabrics. The improvement in headspace may be judged relative to the baseline treatment.

[0124] The dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​listed. Instead, unless otherwise specified, each such dimension is intended to mean both the listed value and the functionally equivalent range encompassing that value. For example, a dimension disclosed as "40 mm" is intended to mean "approximately 40 mm."

[0125] All documents referenced herein, including any patents or patent applications that are cross-referenced or related, and any patent applications or patents on which this application claims priority or benefit thereof, are incorporated herein by reference in their entirety unless explicitly stated to be excluded or limited. No reference to any document shall be deemed prior art to any invention disclosed or claimed herein, nor shall it be deemed to teach, suggest or disclose any such invention, either alone or in combination with any other reference. Furthermore, any meaning or definition of a term in this document shall be governed by the meaning or definition given to that term in this document to the extent that it conflicts with any meaning or definition of the same term in any document incorporated by reference.

[0126] While specific embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. Therefore, it is intended that all such changes and modifications within the scope of the invention be covered in the appended claims.

Claims

1. A liquid laundry detergent composition, a) A first surfactant comprising a mixture of surfactant isomers of formula 1 and a surfactant of formula 2 in an amount of 1% to 30% by weight of the composition, 【Chemistry 1】 The first surfactant comprises 90% to 100% by weight of an isomer having m + n = 11, 25% to 50% by weight of a mixture of surfactant isomers of formula 1 having n = 0, and 0.001% to 25% by weight of the first surfactant comprises a surfactant of formula 2, wherein X is a hydrophilic portion selected from the group consisting of sulfates. b) An encapsulating agent comprising a shell and a core in an amount of 0.1% to 2% by weight of the composition, wherein the shell comprises a polyacrylate and the core comprises a fragrance, c) A detergent auxiliary, including, The liquid laundry detergent composition further comprises an additional surfactant selected from the group consisting of alkylethoxysulfates, alkylbenzene sulfonates, ethoxylated alcohol nonionic surfactants, amine oxide surfactants, and mixtures thereof.

2. The liquid laundry detergent composition has a higher dry fabric odor score, as measured according to a fabric headspace analysis method, relative to the sum of the score of a first reference composition representing the liquid laundry detergent composition without the encapsulating agent and the score of a second reference composition representing the liquid laundry detergent composition without the first surfactant. The aforementioned fabric headspace analysis method, (a) Wash the terry cloth sample with 48.48 g of liquid laundry detergent composition per 18.93 L of water at 25°C and 7 US gpg (grains per gallon) for 12 minutes while stirring. (b) Rinse the fabric sample obtained in (a) with 7 US gpg in 25°C water for 3 minutes. (c) The fabric samples obtained in (b) are subjected to centrifugal dehydration. (d)(c) Dry the fabric samples obtained in (d) and (c) at 145°F for 30 minutes. (e)(d) Expose the fabric samples obtained in (e) and (d) to 73°F and 50% humidity for 4 hours. (f) Transfer the measured portion of the fabric sample obtained in (e) to the headspace sample vial, and (g) Perform solid-phase microextraction gas chromatography-mass spectrometry on the dough sample in the headspace sample vial. A liquid laundry detergent composition according to claim 1, comprising:

3. The liquid laundry detergent composition has a higher crushed fabric odor score, measured according to a fabric headspace analysis method, relative to the sum of the score of a first reference composition representing the liquid laundry detergent composition without the encapsulating agent and the score of a second reference composition representing the liquid laundry detergent composition without the first surfactant. The aforementioned fabric headspace analysis method, (a) Wash the terry cloth sample with 48.48 g of liquid laundry detergent composition per 18.93 L of water at 25°C and 7 US gpg (grains per gallon) for 12 minutes while stirring. (b) Rinse the fabric sample obtained in (a) with 7 US gpg in 25°C water for 3 minutes. (c) The fabric samples obtained in (b) are subjected to centrifugal dehydration. (d)(c) Dry the fabric samples obtained in (d) and (c) at 145°F for 30 minutes. (e)(d) Expose the fabric samples obtained in (e) and (d) to 73°F and 50% humidity for 4 hours. (f) Transfer the measured portion of the fabric sample obtained in (e) to the headspace sample vial, and (g) Apply 67 psi to the dough sample with a rod for 10 seconds to grind the dough sample in the headspace sample vial, and then perform solid-phase microextraction gas chromatography-mass spectrometry on the dough sample. A liquid laundry detergent composition according to claim 1 or 2, comprising:

4. The liquid laundry detergent composition according to claim 1 or 2, wherein the weight ratio of the first surfactant to the encapsulating agent is 35:1 to 5:

1.

5. The liquid laundry detergent composition according to claim 1 or 2, wherein the detergent auxiliary agent comprises an enzyme, an enzyme stabilizer, a builder, a colorant, a stain re-adhesion inhibitor, a bleaching agent, or a combination thereof.

6. The liquid laundry detergent composition according to claim 1 or 2, wherein 15% to 40% by weight of the mixture of surfactant isomers of formula 1 is a surfactant isomer of formula 1 having n=1.

7. The liquid laundry detergent composition according to claim 1 or 2, wherein 60% to 90% by weight of the mixture of surfactant isomers of formula 1 is a surfactant isomer of formula 1 having n < 3.

8. A liquid laundry detergent composition according to claim 1 or 2, wherein X contains sulfate.

9. The liquid laundry detergent composition according to claim 1 or 2, further comprising 10% to 90% by weight of water in the liquid laundry detergent composition.

10. The liquid laundry detergent composition according to claim 1 or 2, wherein the shell of the encapsulating agent has a thickness of 60 nanometers to 200 nanometers.

11. The liquid laundry detergent composition according to claim 1 or 2, wherein the shell comprises 65% to 100% by weight of the polyacrylate of the shell.

Images