Aqueous liquid laundry detergent formulation
The use of a specific mixture of linear and branched alkyl polyglycosides in an aqueous laundry detergent formulation addresses solubility and cleaning performance issues, providing effective fabric cleaning.
Patent Information
- Application Number
- PCT/US2025/030085
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-05-23
- Filing Date
- 2025-05-20
- Publication Date
- 2025-11-27
AI Technical Summary
Existing aqueous liquid laundry detergents using sugar-based surfactants face challenges with poor water solubility and cleaning performance, especially in the presence of salts, and delivery to soiled fabrics is difficult.
An aqueous liquid laundry detergent formulation comprising a mixture of linear and branched alkyl polyglycosides, specifically linear alkyl polyglucosides and branched alkyl polysaccharides, with defined compositional ratios to enhance water solubility and cleaning performance.
The formulation achieves exceptional laundry cleaning performance with improved water solubility, ensuring effective delivery and cleaning of soiled fabrics.
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Figure US2025030085_27112025_PF_FP_ABST
Abstract
Description
Attorney Docket No. 86089-WO-PCTAQUEOUS LIQUID LAUNDRY DETERGENT FORMULATION
[0001] The present invention relates to an aqueous liquid laundry detergent formulation. In particular, the present invention relates to an aqueous liquid laundry detergent formulation, comprising (a) 35 to 99.9 wt%, based on weight of the aqueous liquid laundry detergent formulation, of water; (b) 0 to 60 wt%, based on weight of the aqueous liquid laundry detergent formulation of, a cleaning surfactant; and (c) 0.1 to 50 wt%, based on weight of the aqueous liquid laundry detergent formulation, of a mixture of alkyl polyglycosides comprising: a linear alkyl polyglucoside of formula A R1-O-(G)nH (A) wherein R1is a linear C6-15alkyl group; wherein n is an average of 1 to 5; wherein G is a monosaccharide of glucose; and a branched alkyl polysaccharide of formula B wherein R2is a linear oralkyl group; wherein g is an average of 1 to 5; wherein S is a monosaccharide with 5 or 6 carbon atoms; with the proviso that the mixture of alkyl polyglycosides comprises < 15 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula I (I) wherein R4is a linear or alkyl group; wherein G1is ato 4; with the proviso that R1is a linear C9-15alkyl group in at least some of the linear alkyl polyglucoside of formula A; with the proviso that when the sum of carbon atoms in R2and R3is 7 to 9, the mixture of alkyl polyglycosides comprises < 1 wt%, based on weight of the mixture of alkyl polyglycosides, of an alkyl oligoglucoside of formula II R16-O-(G2)y(II)Attorney Docket No. 86089-WO-PCTwherein R16is a branched C9-11alkyl group; wherein G2is a glucose unit and wherein y is 1.4 to 2.0; with the proviso that the mixture of alkyl polyglycosides comprises 0 to 35 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula III wherein R6is –(CH ) CH2 m (CH3) with 4 to 6 carbon atoms; wherein z is 1.1 to 4 and wherein m is 0 to 3; with the proviso that the mixture of alkyl polyglycosides comprises < 3 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula IV wherein R12is -(CH2)pCH3;monosaccharide with 4 to 6 carbon atoms; wherein p is 1 to 4; wherein f is 1.1 to 10; and with the proviso that when S is a monosaccharide with 5 carbon atoms, R3is a linear or branched C5alkyl group.
[0002] Aqueous liquid laundry detergent formulations having various petrochemical derived surfactants are widely used for cleaning laundry. Notwithstanding, there is demand from brand owners and consumers for development of alternative surfactants to those historically derived from petrochemicals. A proposed alternative has been sugar based surfactants. However, previously proposed sugar based surfactants have exhibited poor water solubility, especially in the presence of salts; and poor cleaning performance when used in single surfactant systems (e.g., without an anionic cosurfactant). Recent efforts have sought to overcome the poor cleaning performance by exploring sugar based surfactants with branched hydrophobes. However, these materials have lower water solubility than sugar based surfactants with linear hydrophobes, making delivery of the surfactants in laundry to be cleaned difficult.Attorney Docket No. 86089-WO-PCT
[0003] Accordingly, there remains a need for water soluble compositions of sugar based surfactants with improved cleaning performance and solubility in aqueous liquid laundry detergent formulations.
[0004] The present invention provides an aqueous liquid laundry detergent formulation, comprising: (a) 35 to 99.9 wt%, based on weight of the aqueous liquid laundry detergent formulation, of water; (b) 0 to 60 wt%, based on weight of the aqueous liquid laundry detergent formulation of, a cleaning surfactant; and (c) 0.1 to 50 wt%, based on weight of the aqueous liquid laundry detergent formulation, of a mixture of alkyl polyglycosides comprising: a linear alkyl polyglucoside of formula A R1-O-(G)nH (A) wherein R1is a linear C6-15 alkyl group; wherein n is an average of 1 to 5; wherein G is a monosaccharide of glucose; and a branched alkyl polysaccharide of formula B (B) wherein R2is a linear oralkyl group; wherein g is an average of 1 to 5; wherein S is a monosaccharide with 5 or 6 carbon atoms; with the proviso that the mixture of alkyl polyglycosides comprises < 15 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula I (I) wherein R4is a linear or alkyl group; wherein G1is ato 4; with the proviso that R1is a linear C9-15 alkyl group in at least some of the linear alkyl polyglucoside of formula A; with the proviso that when the sum of carbon atoms in R2and R3is 7 to 9, the mixture of alkyl polyglycosides comprises < 1 wt%, based on weight of the mixture of alkyl polyglycosides, of an alkyl oligoglucoside of formula II R16-O-(G2)y (II)Attorney Docket No. 86089-WO-PCTwherein R16is a branched C9-11alkyl group; wherein G2is a glucose unit and wherein y is 1.4 to 2.0; with the proviso that the mixture of alkyl polyglycosides comprises 0 to 35 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula III wherein R6is –(CH2)mCH(CH3) with 4 to 6 carbon atoms; wherein z is 1.1 to 4 and wherein m is 0 to 3; with the proviso that the mixture of alkyl polyglycosides comprises < 3 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula IV wherein R12is -(CH2)pCH3;monosaccharide with 4 to 6 carbon atoms; wherein p is 1 to 4; wherein f is 1.1 to 10; and with the proviso that when S is a monosaccharide with 5 carbon atoms, R3is a linear or branched C5alkyl group.
[0005] The present invention provides an aqueous liquid laundry detergent formulation, comprising: (a) 35 to 99.9 wt%, based on weight of the aqueous liquid laundry detergent formulation, of water; (b) 0 to 60 wt%, based on weight of the aqueous liquid laundry detergent formulation of, a cleaning surfactant; and (c) 0.1 to 50 wt%, based on weight of the aqueous liquid laundry detergent formulation, of a mixture of alkyl polyglycosides comprising: a linear alkyl polyglucoside of formula A; wherein R1is a linear C6-15 alkyl group; wherein n is an average of 1 to 5; wherein G is a monosaccharide of glucose; and a branched alkyl polysaccharide of formula B; wherein R2is a linear or branched C3-7 alkyl group; wherein R3is a linear or branched C5-7alkyl group; wherein g is an average of 1 to 5; wherein S is a monosaccharide with 5 or 6 carbon atoms; with the proviso that the mixture of alkyl polyglycosides comprises < 15 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula I; wherein R4is a linear or branched C3-4 alkyl group; wherein R5is a linear or branched C5-6alkyl group; wherein G1is a monosaccharideAttorney Docket No. 86089-WO-PCTwith 4 to 6 carbon atoms and wherein x is 1.1 to 4; with the proviso that R1is a linear C9-15alkyl group in at least some of the linear alkyl polyglucoside of formula A; with the proviso that when the sum of carbon atoms in R2and R3is 7 to 9, the mixture of alkyl polyglycosides comprises < 1 wt%, based on weight of the mixture of alkyl polyglycosides, of an alkyl oligoglucoside of formula II; wherein R16is a branched C9-11 alkyl group; wherein G2is a glucose unit and wherein y is 1.4 to 2.0; with the proviso that the mixture of alkyl polyglycosides comprises 0 to 35 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula III; wherein R6is –(CH2)mCH(CH3)2; wherein R7is –(CH2)m+2CH(CH3)2; G3is a monosaccharide with 4 to 6 carbon atoms; wherein z is 1.1 to 4 and wherein m is 0 to 3; with the proviso that the mixture of alkyl polyglycosides comprises < 3 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula IV; wherein R12is -(CH2)pCH3; wherein R13is -(CH2)p+1CH(CH3)2; wherein G6is a monosaccharide with 4 to 6 carbon atoms; wherein p is 1 to 4; wherein f is 1.1 to 10; with the proviso that when S is a monosaccharide with 5 carbon atoms, R3is a linear or branched C5 alkyl group; and wherein the mixture of alkyl polyglycosides comprises >85 to 99 wt%, based on weight of the mixture of alkyl polyglycosides, of a linear alkyl polyglucoside of formula A and 1 to < 15 wt%, based on weight of the mixture of alkyl polyglycosides, of the branched alkyl polysaccharide of formula B.
[0006] The present invention provides an aqueous liquid laundry detergent formulation, comprising: (a) 40 to 98 wt%, based on weight of the aqueous liquid laundry detergent formulation, of water; (b) 1 to 50 wt%, based on weight of the aqueous liquid laundry detergent formulation, of a cleaning surfactant; wherein the cleaning surfactant includes an anionic cleaning surfactant; and (c) 0.5 to 20 wt%, based on weight of the aqueous liquid laundry detergent formulation, of a mixture of alkyl polyglycosides comprising: a linear alkyl polyglucoside of formula A; wherein R1is a linear C6-15alkyl group; wherein n is an average of 1 to 5; wherein G is a monosaccharide of glucose; and a branched alkyl polysaccharide of formula B; wherein R2is a linear or branched C3-7 alkyl group; wherein R3is a linear or branched C5-7alkyl group; wherein g is an average of 1 to 5; wherein S is a monosaccharide with 5 or 6 carbon atoms; with the proviso that the mixture of alkyl polyglycosides comprises < 15 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula I; wherein R4is a linear or branched C3-4 alkyl group; wherein R5is a linear or branched C5-6alkyl group; wherein G1is a monosaccharide with 4 to 6 carbon atoms and wherein x is 1.1 to 4; with the proviso that R1is a linear C9-15 alkyl group in at least some of the linear alkyl polyglucoside of formula A; with the proviso that when the sumAttorney Docket No. 86089-WO-PCTof carbon atoms in R2and R3is 7 to 9, the mixture of alkyl polyglycosides comprises < 1 wt%, based on weight of the mixture of alkyl polyglycosides, of an alkyl oligoglucoside of formula II; wherein R16is a branched C9-11 alkyl group; wherein G2is a glucose unit and wherein y is 1.4 to 2.0; with the proviso that the mixture of alkyl polyglycosides comprises 0 to 35 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula III; wherein R6is –(CH2)mCH(CH3)2; wherein R7is –(CH2)m+2CH(CH3)2; G3is a monosaccharide with 4 to 6 carbon atoms; wherein z is 1.1 to 4 and wherein m is 0 to 3; with the proviso that the mixture of alkyl polyglycosides comprises < 3 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula IV; wherein R12is - (CH2)pCH3; wherein R13is -(CH2)p+1CH(CH3)2; wherein G6is a monosaccharide with 4 to 6 carbon atoms; wherein p is 1 to 4; wherein f is 1.1 to 10; with the proviso that when S is a monosaccharide with 5 carbon atoms, R3is a linear or branched C5 alkyl group; wherein the mixture of alkyl polyglycosides comprises >85 to 99 wt%, based on weight of the mixture of alkyl polyglycosides, of a linear alkyl polyglucoside of formula A and 1 to < 15 wt%, based on weight of the mixture of alkyl polyglycosides, of the branched alkyl polysaccharide of formula B; and wherein the mixture of alkyl polyglycosides comprises 95 to 100 wt%, based on weight of the aqueous liquid laundry detergent formulation, of all alkyl polyglycosides present in the aqueous cleaning formulation.
[0007] The present invention provides a method of washing a soiled fabric article, comprising: providing a soiled fabric article; providing an aqueous liquid laundry detergent formulation of the present invention; providing a wash water; and applying the wash water and the liquid laundry detergent formulation to the soiled fabric to provide a washed fabric article. DETAILEDDESCRIPTION
[0008] We have surprisingly found that an aqueous liquid laundry detergent formulation, comprising a mixture of alkyl polyglycosides comprising: a linear alkyl polyglucoside of formula A R1-O-(G)nH (A) wherein R1is a linear C6-15 alkyl group; wherein n is an average of 1 to 5; wherein G is a monosaccharide of glucose; and a branched alkyl polysaccharide of formula BAttorney Docket No. 86089-WO-PCT(B) 2wherein R is a linear or7group; a or7alkyl group; wherein g is an average of 1 to 5; wherein S is a monosaccharide with 5 or 6 carbon atoms; as defined herein, is both water soluble and provides exceptional laundry cleaning performance.
[0009] Unless otherwise indicated, ratios, percentages, parts, and the like are by weight. Weight percentages (or wt%) in the composition are percentages of dry weight, i.e., excluding any water that may be present in the composition.
[0010] The term “water soluble” as used herein and in the appended claims with respect to a given concentration of a mixture of alkyl polyglycosides in water, means that a 5 wt% solution of the mixture of alkyl polyglycosides in water will have a turbidity of < 15 Nephelometric Turbidity Units (NTU) measured at 20 °C using a turbidity meter.
[0011] Preferably, the aqueous liquid laundry detergent formulation of the present invention, comprises: (a) 35 to 99.9 wt% (preferably, 40 to 98.5 wt%; more preferably, 50 to 95 wt%; most preferably, 60 to 86 wt%), based on weight of the liquid laundry detergent formulation, of water; (b) 0 to 60 wt% (preferably, 1 to 50 wt%; more preferably, 4 to 40 wt%; most preferably, 10 to 30 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a cleaning surfactant (other than the mixture of alkyl polyglycosides of (c))(preferably, wherein the cleaning surfactant is selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants and mixtures thereof; more preferably, wherein the cleaning surfactant is selected from the group consisting of a mixture including an anionic surfactant and a non-ionic surfactant; most preferably, wherein the cleaning surfactant includes a mixture of a linear alkyl benzene sulfonate and a sodium lauryl ethoxysulfate); and (c) 0.1 to 50 wt% (preferably, 0.5 to 20 wt%; more preferably, 1 to 15 wt%; most preferably, 4 to 8 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a mixture of alkyl polyglycosides comprising: a linear alkyl polyglucoside of formula A (preferably, >85 to 99 wt% (more preferably, 86 to 95 wt%; still more preferably, 87 to 95 wt%; yet more preferably, 88 to 92.5 wt%; most preferably, 89 to 91 wt%), based on weight of the mixture of alkyl polyglycosides, of the linear alkyl polyglucoside of formula A)Attorney Docket No. 86089-WO-PCTR1-O-(G)nH (A) wherein R1is a linear C6-15alkyl group (preferably, a linear C8-14alkyl group; more preferably, a linear C8-10 alkyl group; still more preferably, at least one of a linear C8 alkyl group and a linear C10alkyl group; most preferably, a blend of a linear C8alkyl group and a linear C10 alkyl group); wherein n is an average of 1 to 5 (preferably, 1 to 3; more preferably, 1 to 2; most preferably, 1.1 to 2); wherein G is a monosaccharide of glucose; and a branched alkyl polysaccharide of formula B (preferably, 1 to <15 wt% (more preferably, 5 to 14 wt%; still more preferably, 5 to 13 wt%; yet more preferably, 7.5 to 12 wt%; most preferably, 9 to 11 wt%), based on weight of the mixture of alkyl polyglycosides, of the branched alkyl polysaccharide of formula B) (B) wherein R2is a linear oralkyl group; wherein g is an average of 1 to 5 (preferably, 1 to 3; more preferably, 1 to 2; most preferably, 1.1 to 2); wherein S is a monosaccharide with 5 or 6 carbon atoms (preferably, ribulose, xylulose, ribose, arabinose, xylose, lyxose, galactose, mannose, glucose and mixtures thereof; more preferably, arabinose, xylose, glucose and mixtures thereof; still more preferably, xylose, glucose and mixtures thereof; most preferably, glucose); with the proviso that the mixture of alkyl polyglycosides comprises < 15 wt% (preferably, 1 to 14 wt%; more preferably, 2 to 12.5 wt%; still more preferably, 5 to 12 wt%; most preferably, 8 to 11 wt%), based on weight of the mixture of alkyl polyglycosides, of a compound of formula I (I) wherein R4is a linear or alkyl group; wherein G1is ato 4; with the proviso that R1is a linear C9-15alkyl group in at least some of the linear alkyl polyglucoside of formula A; with the proviso that when the sum of carbon atoms in R2and R3is 7 to 9, the mixture of alkyl polyglycosides comprises < 1 wt% (preferably, < 0.5 wt%;Attorney Docket No. 86089-WO-PCTmore preferably, < 0.1 wt%; still more preferably, < 0.01 wt%; yet more preferably, < 0.001 wt%; still yet more preferably, < 0.0001 wt%; most preferably, less than detectable limit), based on weight of the mixture of alkyl polyglycosides, of an alkyl oligoglucoside of formula II R16-O-(G2)y (II) wherein R16is a branched C9-11alkyl group; wherein G2is a glucose unit and wherein y is 1.4 to 2.0; with the proviso that the mixture of alkyl polyglycosides comprises 0 to 35 wt% (preferably, 0 to 30 wt%; more preferably, 0 to 25 wt%; still more preferably, 0 to 20 wt%; yet more preferably, 0 to 15 wt%; still yet more preferably, 0 to 10 wt%; most preferably, less than the detectable limit), based on weight of the mixture of alkyl polyglycosides, of a compound of formula III wherein R6is -(CH2)mCH(CH3)2;with 4 to 6 carbon atoms; wherein z is 1.1 to 4 and wherein m is 0 to 3; with the proviso that the mixture of alkyl polyglycosides comprises < 3 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula IV wherein R12is -(CH2)pCH3; monosaccharide with 4 to 6the proviso that when S is a monosaccharide with 5 carbon atoms, R3is a linear or branched C5 alkyl group.
[0012] Preferably, the aqueous liquid laundry detergent formulation of the present invention, comprises: (a) 35 to 99.9 wt% (preferably, 40 to 98.5 wt%; more preferably, 50 to 95 wt%; most preferably, 60 to 86 wt%), based on weight of the liquid laundry detergent formulation, of water; (b) 0 to 60 wt% (preferably, 1 to 50 wt%; more preferably, 4 to 40 wt%; most preferably, 10 to 30 wt%), based on weight of the aqueous liquid laundry detergentAttorney Docket No. 86089-WO-PCTformulation, of a cleaning surfactant (other than the mixture of alkyl polyglycosides of (c))(preferably, wherein the cleaning surfactant is selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants and mixtures thereof; more preferably, wherein the cleaning surfactant is selected from the group consisting of a mixture including an anionic surfactant and a non-ionic surfactant; most preferably, wherein the cleaning surfactant includes a mixture of a linear alkyl benzene sulfonate and a sodium lauryl ethoxysulfate); and (c) 0.1 to 50 wt% (preferably, 0.5 to 20 wt%; more preferably, 1 to 15 wt%; most preferably, 4 to 8 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a mixture of alkyl polyglycosides comprising: a linear alkyl polyglucoside of formula A (preferably, >85 to 99 wt% (more preferably, 86 to 95 wt%; still more preferably, 87 to 95 wt%; yet more preferably, 88 to 92.5 wt%; most preferably, 89 to 91 wt%), based on weight of the mixture of alkyl polyglycosides, of the linear alkyl polyglucoside of formula A); wherein R1is a linear C6-15 alkyl group (preferably, a linear C8-14 alkyl group; more preferably, a linear C8-10 alkyl group; still more preferably, at least one of a linear C8 alkyl group and a linear C10 alkyl group; most preferably, a blend of a linear C8 alkyl group and a linear C10 alkyl group); wherein n is an average of 1 to 5 (preferably, 1 to 3; more preferably, 1 to 2; most preferably, 1.1 to 2); wherein G is a monosaccharide of glucose; and a branched alkyl polysaccharide of formula B (preferably, 1 to <15 wt% (more preferably, 5 to 14 wt%; still more preferably, 5 to 13 wt%; yet more preferably, 7.5 to 12 wt%; most preferably, 9 to 11 wt%), based on weight of the mixture of alkyl polyglycosides, of the branched alkyl polysaccharide of formula B); wherein R2is a linear or branched C3-7 alkyl group; wherein R3is a linear or branched C5-7 alkyl group; wherein g is an average of 1 to 5 (preferably, 1 to 3; more preferably, 1 to 2; most preferably, 1.1 to 2); wherein S is a monosaccharide with 5 or 6 carbon atoms (preferably, ribulose, xylulose, ribose, arabinose, xylose, lyxose, galactose, mannose, glucose and mixtures thereof; more preferably, arabinose, xylose, glucose and mixtures thereof; still more preferably, xylose, glucose and mixtures thereof; most preferably, glucose); with the proviso that the mixture of alkyl polyglycosides comprises < 15 wt% (preferably, 1 to 14 wt%; more preferably, 2 to 12.5 wt%; still more preferably, 5 to 12 wt%; most preferably, 8 to 11 wt%), based on weight of the mixture of alkyl polyglycosides, of a compound of formula I; wherein R4is a linear or branched C3-4 alkyl group; wherein R5is a linear or branched C5-6 alkyl group; wherein G1is a monosaccharide with 4 to 6 carbon atoms and wherein x is 1.1 to 4; with the proviso that R1is a linear C9-15 alkyl group in at least some of the linear alkyl polyglucoside of formula A; with the proviso that when the sum of carbon atoms in R2and R3Attorney Docket No. 86089-WO-PCTis 7 to 9, the mixture of alkyl polyglycosides comprises < 1 wt% (preferably, < 0.5 wt%; more preferably, < 0.1 wt%; still more preferably, < 0.01 wt%; yet more preferably, < 0.001 wt%; still yet more preferably, < 0.0001 wt%; most preferably, less than detectable limit), based on weight of the mixture of alkyl polyglycosides, of an alkyl oligoglucoside of formula II; wherein R16is a branched C9-11 alkyl group; wherein G2is a glucose unit and wherein y is 1.4 to 2.0; with the proviso that the mixture of alkyl polyglycosides comprises 0 to 35 wt% (preferably, 0 to 30 wt%; more preferably, 0 to 25 wt%; still more preferably, 0 to 20 wt%; yet more preferably, 0 to 15 wt%; still yet more preferably, 0 to 10 wt%; most preferably, less than the detectable limit), based on weight of the mixture of alkyl polyglycosides, of a compound of formula III; wherein R6is -(CH2)mCH(CH3)2; wherein R7is -(CH2)m+2CH(CH3)2; G3is a monosaccharide with 4 to 6 carbon atoms; wherein z is 1.1 to 4 and wherein m is 0 to 3; with the proviso that the mixture of alkyl polyglycosides comprises < 3 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula IV; wherein R12is -(CH2)pCH3; wherein R13is -(CH2)p+1CH(CH3)2; wherein G6is a monosaccharide with 4 to 6 carbon atoms; wherein p is 1 to 4; wherein f is 1.1 to 10; and with the proviso that when S is a monosaccharide with 5 carbon atoms, R3is a linear or branched C5alkyl group; with any one or more of the following additional mixture of alkyl polyglycoside provisos (i)-(xi)(each mixture proviso taken individually, all possible combinations of two or more mixture provisos and combinations of mixture proviso(s) with additional formulation proviso(s) discussed subsequently are contemplated): (i) with the proviso that at least 5 wt% (preferably, at least 10 wt%; more preferably, at least 25 wt%; still more preferably, at least 40 wt%; most preferably, at least 45 wt%) , based on weight of the linear alkyl polyglucoside of formula A, is a linear C10 alkyl polyglucoside; (ii) with the proviso that the linear alkyl polyglucoside of formula A is a blend comprising a linear C8 alkyl polyglucoside (preferably, 5 to 95 wt% (more preferably, 10 to 90 wt%; still more preferably, 25 to 75 wt%; yet more preferably, 40 to 60 wt%; most preferably, 45 to 55 wt%) , based on weight of the blend, of the linear C8 alkyl polyglucoside) and a linear C10alkyl polyglucoside (preferably, 5 to 95 wt% (more preferably, 10 to 90 wt%; still more preferably, 25 to 75 wt%; yet more preferably, 40 to 60 wt%; most preferably, 45 to 55 wt%) , based on weight of the blend, of the linear C10alkyl polyglucoside); (iii) with the proviso that the mixture of alkyl polyglycosides comprises >85 to 99 wt% (preferably, 86 to 95 wt%; more preferably, 87 to 95 wt%; still more preferably, 88 toAttorney Docket No. 86089-WO-PCT92.5 wt%; most preferably, 89 to 91 wt%), based on weight of the mixture of alkyl polyglycosides, of linear alkyl polyglucoside of formula A; and 1 to <15 wt% (preferably, 5 to 14 wt%; more preferably, 5 to 13 wt%; still more preferably, 7.5 to 12 wt%; most preferably, 9 to 11 wt%), based on weight of the mixture of alkyl polyglycosides, of branched alkyl polysaccharides of formula B; (iv) with the proviso that the mixture of alkyl polyglycosides comprises < 0.05 wt% (preferably, < 0.01; more preferably, < 0.005; still more preferably, < 0.001; yet more preferably, < 0.0005; still yet more preferably, < 0.0001 wt%; most preferably, less than detectable limit), based on weight of the mixture of alkyl polyglycosides, of a fatty acid alkyl ester alkoxylate of formula V R14CO2-(AO)h-R15(V) wherein R14is a linear or branched, saturated or unsaturated, alkyl group containing 5 to 21 carbon atoms; wherein AO is a C2-4 alkylene oxide unit; wherein h is 1 to 30 and wherein R15is a linear or branched alkyl group containing 1 to 6 carbon atoms; (v) with the proviso that the mixture of alkyl polyglycosides comprises < 0.05 wt% (preferably, < 0.01 wt%; more preferably, < 0.005 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0005 wt%; still yet more preferably, < 0.0001 wt%; most preferably, less than detectable limit), based on weight of the mixture of alkyl polyglycosides, of a compound of formula III wherein R6is –(CH2)mCH(CH3) with 4 to 6 carbon atoms;(vi) with the proviso that at least 5 wt% (preferably, at least 10; more preferably, at least 25 wt%; still more preferably, at least 40 wt%; most preferably, at least 45 wt%) of the linear alkyl polyglucoside of formula A is a linear C10 alkyl polyglucoside; (vii) with the proviso that the linear alkyl polyglucoside of formula A comprises a blend of 5 to 95 wt% (preferably, 10 to 90 wt%; more preferably, 25 to 75 wt%; still more preferably, 40 to 60 wt%; most preferably, 45 to 55 wt%), based on weight of the blend, of a linear C8 alkyl polyglucoside and (II) 5 to 95 wt% (preferably, 10 to 90 wt%; more preferably, 25 to 75 wt%; still more preferably, 40 to 60 wt%; most preferably, 45 to 55 wt%),Attorney Docket No. 86089-WO-PCTbased on weight of the blend, of a linear C10alkyl polyglucoside; wherein the linear alkyl polyglucoside comprises 90 to 100 wt% (preferably, 95 to 100 wt%; more preferably, 97.5 to 100 wt%; still more preferably, 98 to 100 wt%; yet more preferably, 99 to 100 wt%; still yet more preferably, 99.5 to 100 wt%; yet still more preferably, 99.9 to 100 wt%; most preferably, 100 wt%), based on weight of the linear alkyl polyglucoside, of the linear C8 alkyl polyglucoside plus the weight of the linear C10alkyl polyglucoside; (viii) with the proviso that the linear alkyl polyglucoside of formula A and the branched alkyl polysaccharide of formula B comprise 95 to 100 wt% (preferably, 97 to 100 wt%; more preferably, 98 to 100 wt%; still more preferably, 99 to 100 wt%; yet more preferably, 99.5 to 100 wt%; still yet more preferably, 99.9 to 100 wt%; yet still more preferably, 99.99 to 100 wt%; most preferably, 100 wt%) of all alkyl polyglycoside present in the aqueous liquid laundry detergent formulation; (ix) with the proviso that the mixture of alkyl polyglucosides comprises < 0.1 wt% (preferably, < 0.05 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; still yet more preferably, < 0.00001 wt%; most preferably, less than detectable limit), based on weight of the mixture of alkyl polyglucosides, of a compound of formula VI R19-O-(G7)kH (VI) wherein R19is a linear C1-8alkyl group; wherein G7is a monosaccharide with 5 or 6 carbon atoms and wherein k is an average of 1 to 10; (x) with the proviso that the mixture of alkyl polyglycosides comprises < 0.1 wt% (preferably, < 0.05 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; still yet more preferably, < 0.00001 wt%; most preferably, less than detectable limit), based on weight of the mixture of alkyl polyglucosides, of a compound of formula VII wherein R20is a linear or7alkyl group; wherein the sum ofmonosaccharide residue; and wherein r is 1 to 4; andAttorney Docket No. 86089-WO-PCT(xi) with the proviso that the mixture of alkyl polyglycosides is water soluble (i.e., that a 5 wt% solution of the mixture of alkyl polyglycosides alone in water will have a turbidity of < 15 Nephelometric Turbidity Units (NTU) measured at 20 °C using a turbidity meter).
[0013] Preferably, the aqueous cleaning composition of the present invention, comprises 35 to 99.9 wt% (preferably, 40 to 98.5 wt%; more preferably, 50 to 95 wt%; most preferably, 60 to 86 wt%), based on weight of the aqueous cleaning composition, of water. More preferably, the aqueous cleaning composition of the present invention, comprises 35 to 99.9 wt% (preferably, 40 to 98.5 wt%; more preferably, 50 to 95 wt%; most preferably, 60 to 86 wt%), based on weight of the aqueous cleaning composition, of water; wherein the water comprises at least one of distilled water, deionized water and industrial soft water.
[0014] Preferably, the aqueous liquid laundry detergent formulation of the present invention, comprises: 0 to 60 wt% (preferably, 1 to 50 wt%; more preferably, 4 to 40 wt%; most preferably, 10 to 30 wt%), based on weight of the aqueous liquid laundry detergent formulation, a cleaning surfactant other than the mixture of alkyl polyglycosides of (c). More preferably, the aqueous liquid laundry detergent formulation of the present invention, comprises: 0 to 60 wt% (preferably, 1 to 50 wt%; more preferably, 4 to 40 wt%; most preferably, 10 to 30 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a cleaning surfactant other than the mixture of alkyl polyglycosides of (c); wherein the cleaning surfactant is selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants and mixtures thereof. Still more preferably, the aqueous liquid laundry detergent formulation of the present invention, comprises: 0 to 60 wt% (preferably, 1 to 50 wt%; more preferably, 4 to 40 wt%; most preferably, 10 to 30 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a cleaning surfactant other than the mixture of alkyl polyglycosides of (c); wherein the cleaning surfactant comprises an anionic surfactant. Most preferably, the aqueous liquid laundry detergent formulation of the present invention, comprises: 0 to 60 wt% (preferably, 1 to 50 wt%; more preferably, 4 to 40 wt%; most preferably, 10 to 30 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a cleaning surfactant other than the mixture of alkyl polyglycosides of (c); wherein the cleaning surfactant comprises a mixture of a linear alkyl benzene sulfonate and a sodium lauryl ethoxysulfate.
[0015] Anionic surfactants include alkyl sulfates, alkyl benzene sulfates, alkyl benzene sulfonic acids, alkyl benzene sulfonates, alkyl polyethoxy sulfates, alkoxylated alcohols, paraffin sulfonic acids, paraffin sulfonates, olefin sulfonic acids, olefin sulfonates,Attorney Docket No. 86089-WO-PCTalpha-sulfocarboxylates, esters of alpha-sulfocarboxylates, alkyl glyceryl ether sulfonic acids, alkyl glyceryl ether sulfonates, sulfates of fatty acids, sulfonates of fatty acids, sulfonates of fatty acid esters, alkyl phenols, alkyl phenol polyethoxy ether sulfates, 2-acryloxy-alkane-1-sulfonic acid, 2-acryloxy-alkane-1-sulfonate, beta-alkyloxy alkane sulfonic acid, beta-alkyloxy alkane sulfonate and mixtures thereof. Preferred anionic surfactants include C8-20alkyl benzene sulfates, C8-20alkyl benzene sulfonic acid, C8-20alkyl benzene sulfonate, paraffin sulfonic acid, paraffin sulfonate, alpha-olefin sulfonic acid, alpha- olefin sulfonate, alkoxylated alcohols, C8-20alkyl phenols, sulfonates of fatty acids, sulfonates of fatty acid esters, C8-10 alkyl polyethoxy sulfates and mixtures thereof. More preferred anionic surfactants include C12-16alkyl benzene sulfonic acid, C12-16alkyl benzene sulfonate, C12-18 paraffin-sulfonic acid, C12-18 paraffin-sulfonate, C12-16 alkyl polyethoxy sulfate and mixtures thereof.
[0016] Non-ionic surfactants, other than the mixture of alkyl polyglycosides of the present, include alkoxylates (e.g., polyglycol ethers, fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, end group capped polyglycol ethers, mixed ethers, hydroxy mixed ethers, fatty acid polyglycol esters and mixtures thereof. Preferred non-ionic surfactants, other than the mixture of alkyl polyglycosides of the present invention, include fatty alcohol polyglycol ethers. More preferred non-ionic surfactants, other than the mixture of alkyl polyglycosides of the present invention, include secondary alcohol ethoxylates, ethoxylated 2-ethylhexanol, ethoxylated seed oils, butanol caped ethoxylated 2-ethylhexanol and mixtures thereof. Most preferred non-ionic surfactants, other than the mixture of alkyl polyglycosides of the present invention, include secondary alcohol ethoxylates.
[0017] Cationic surfactants include quaternary surface active compounds. Preferred cationic surfactants include quaternary surface active compounds having at least one of an ammonium group, a sulfonium group, a phosphonium group, an iodonium group and an arsonium group. More preferred cationic surfactants include at least one of a dialkyldimethylammonium chloride and alkyl dimethyl benzyl ammonium chloride. Still more preferred cationic surfactants include at least one of C16-18dialkyldimethylammonium chloride, a C8-18alkyl dimethyl benzyl ammonium chloride di-tallow dimethyl ammonium chloride and di-tallow dimethyl ammonium chloride. Most preferred cationic surfactant includes di-tallow dimethyl ammonium chloride.
[0018] Amphoteric surfactants include betaines, amine oxides, alkylamidoalkylamines, alkyl-substituted amine oxides, acylated amino acids, derivatives of aliphatic quaternary ammonium compounds and mixtures thereof. Preferred amphoteric surfactants includeAttorney Docket No. 86089-WO-PCTderivatives of aliphatic quaternary ammonium compounds. More preferred amphoteric surfactants include derivatives of aliphatic quaternary ammonium compounds with a long chain group having 8 to 18 carbon atoms. Still more preferred amphoteric surfactants include at least one of C12-14alkyldimethylamine oxide, 3-(N,N-dimethyl-N-hexadecyl-ammonio)propane-1-sulfonate, 3-(N,N-dimethyl-N-hexadecylammonio)-2-hydroxypropane-1-sulfonate. Most preferred amphoteric surfactants include at least one of C12-14 alkyldimethylamine oxide.
[0019] Preferably, the mixture of alkyl polyglycosides of the present invention comprises >85 to 99 wt% (more preferably, 86 to 95 wt%; still more preferably, 87 to 95 wt%; yet more preferably, 88 to 92.5 wt%; most preferably, 89 to 91 wt%), based on weight of the mixture of alkyl polyglycosides, of a linear alkyl polyglucoside of formula A; wherein R1is a linear C6-15 alkyl group (preferably, a linear C8-14 alkyl group; more preferably, a linear C8-10 alkyl group; still more preferably, at least one of a linear C8 alkyl group and a linear C10 alkyl group; most preferably, a mixture of a linear C8 alkyl group and a linear C10 alkyl group); wherein n is an average of 1 to 5 (preferably, 1 to 3; more preferably, 1 to 2; most preferably, 1.1 to 2); wherein G is a monosaccharide of glucose. More preferably, the mixture of alkyl polyglycosides of the present invention comprises >85 to 99 wt% (more preferably, 86 to 95 wt%; still more preferably, 87 to 95 wt%; yet more preferably, 88 to 92.5 wt%; most preferably, 89 to 91 wt%), based on weight of the mixture of alkyl polyglycosides, of a linear alkyl polyglucoside of formula A; wherein the linear alkyl polyglucoside of formula A is a blend comprising a linear C8alkyl polyglucoside and a linear C10alkyl polyglucoside. Most preferably, the mixture of alkyl polyglycosides of the present invention comprises >85 to 99 wt% (more preferably, 86 to 95 wt%; still more preferably, 87 to 95 wt%; yet more preferably, 88 to 92.5 wt%; most preferably, 89 to 91 wt%), based on weight of the mixture of alkyl polyglycosides, of a linear alkyl polyglucoside of formula A; wherein the linear alkyl polyglucoside of formula A is a blend comprising 5 to 95 wt% (preferably, 10 to 90 wt%; more preferably, 25 to 75 wt%; still more preferably, 40 to 60 wt%; most preferably, 45 to 55 wt%), based on weight of the blend, of a linear C8alkyl polyglucoside and 5 to 95 wt% (preferably, 10 to 90 wt%; more preferably, 25 to 75 wt%; still more preferably, 40 to 60 wt%; most preferably, 45 to 55 wt%), based on weight of the blend, of a linear C10alkyl polyglucoside.
[0020] Preferably, the mixture of alkyl polyglycosides of the present invention comprises 1 to <15 wt% (preferably, 5 to 14 wt%; more preferably, 5 to 13 wt%; still more preferably, 7.5 to 12 wt%; most preferably, 9 to 11 wt%), based on weight of the mixture of alkylAttorney Docket No. 86089-WO-PCTpolyglycosides, of a branched alkyl polysaccharide of formula B; wherein R2is a linear or branched C3-7alkyl group; wherein R3is a linear or branched C5-7alkyl group; wherein g is an average of 1 to 5 (preferably, 1 to 3; more preferably, 1 to 2; most preferably, 1.1 to 2); wherein S is a monosaccharide with 5 or 6 carbon atoms (preferably, ribulose, xylulose, ribose, arabinose, xylose, lyxose, galactose, mannose, glucose and mixtures thereof; more preferably, arabinose, xylose, glucose and mixtures thereof; still more preferably, xylose, glucose and mixtures thereof; most preferably, xylose). More preferably, the mixture of alkyl polyglycosides of the present invention comprises 1 to <15 wt% (preferably, 5 to 14 wt%; more preferably, 5 to 13 wt%; still more preferably, 7.5 to 12 wt%; most preferably, 9 to 11 wt%), based on weight of the mixture of alkyl polyglycosides, of a branched alkyl polysaccharide of formula B; wherein R2is a linear or branched C3-7 alkyl group; wherein R3is a linear or branched C5-7 alkyl group; wherein g is an average of 1 to 5 (preferably, 1 to 3; more preferably, 1 to 2; most preferably, 1.1 to 2) ; wherein S is a monosaccharide with 5 or 6 carbon atoms (preferably, ribulose, xylulose, ribose, arabinose, xylose, lyxose, galactose, mannose, glucose and mixtures thereof; more preferably, arabinose, xylose, glucose and mixtures thereof; still more preferably, xylose, glucose and mixtures thereof; most preferably, xylose).
[0021] Preferably, the aqueous cleaning composition of the present invention, further comprises an additive; wherein the additive is selected from the group consisting of an abrasive, an antimicrobial agent, a bleaching agent, a buffering agent, a builder, a chelating agent, a cleaning booster, a corrosion inhibitor, a dispersant polymer, a dye, an enzyme, a fabric softener, a fragrance, a hydrotrope, an organic solvent, a pH adjuster, a poly(alkylene oxide) polymer, a rheology modifier, a salt (e.g., sodium chloride, magnesium sulfate), a structuring agent, a sulfonated polymer and mixtures thereof.
[0022] Preferably, the aqueous liquid laundry detergent formulation of the present invention further comprises an organic solvent; wherein the organic solvent is a water miscible liquid, such as, C1-3 alkanols, C1-3 alkanediols and mixtures thereof. More preferably, the aqueous liquid laundry detergent formulation of the present invention, comprises 0 to 10 wt% (preferably, 0.2 to 8 wt%; more preferably, 0.5 to 7.5 wt%), based on weight of the aqueous liquid laundry detergent formulation, of organic solvent; wherein the organic solvent is a water miscible liquid selected from the group consisting of C1-3 alkanols, C1-3 alkanediols (e.g., propylene glycol) and mixtures thereof. Most preferably, the aqueous liquid laundry detergent formulation of the present invention comprises 0 to 10 wt% (preferably, 0.2 to 8 wt%; more preferably, 0.5 to 7.5 wt%), based on weight of the aqueous liquid laundryAttorney Docket No. 86089-WO-PCTdetergent formulation, of an organic solvent; wherein the organic solvent is a water miscible liquid selected from the group consisting of ethanol, propylene glycol and mixtures thereof.
[0023] Preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises a structurant. More preferably, the aqueous liquid laundry detergent formulation of the present invention, further comprises 0 to 2 wt% (preferably, 0.05 to 0.8 wt%; more preferably, 0.1 to 0.4 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a structurant. Most preferably, the aqueous liquid laundry detergent formulation of the present invention, further comprises 0 to 2 wt% (preferably, 0.05 to 0.8 wt%; more preferably, 0.1 to 0.4 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a structurant; wherein the structurant is a non-polymeric, crystalline hydroxy-functional materials capable of forming thread like structuring systems throughout the liquid laundry detergent formulation when crystallized in situ.
[0024] Preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises a hydrotrope. More preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises: 0 to 15 wt% (preferably, 0.1 to 12 wt%; more preferably, 0.2 to 10 wt%; most preferably, 0.5 to 7.5 wt%), based on the weight of the aqueous liquid laundry detergent formulation, of a hydrotrope. More preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises: 0 to 15 wt% (preferably, 0.1 to 12 wt%; more preferably, 0.2 to 10 wt%; most preferably, 0.5 to 7.5 wt%), based on the weight of the aqueous liquid laundry detergent formulation, of a hydrotrope; wherein the hydrotrope is selected from the group consisting of alkyl hydroxides; glycols; urea; monoethanolamine; diethanolamine; triethanolamine; calcium, sodium, potassium, ammonium and alkanol ammonium salts of xylene sulfonic acid, toluene sulfonic acid, ethylbenzene sulfonic acid, naphthalene sulfonic acid and cumene sulfonic acid; salts thereof and mixtures thereof. Most preferably, the aqueous liquid laundry detergent formulation of the present invention, further comprises: 0 to 15 wt% (preferably, 0.1 to 12 wt%; more preferably, 0.2 to 10 wt%; most preferably, 0.5 to 7.5 wt%), based on the weight of the aqueous liquid laundry detergent formulation, of a hydrotrope; wherein the hydrotrope is selected from the group consisting of ethanol, propylene glycol, sodium toluene sulfonate, potassium toluene sulfonate, sodium xylene sulfonate, ammonium xylene sulfonate, potassium xylene sulfonate, calcium xylene sulfonate, sodium cumene sulfonate, ammonium cumene sulfonate and mixtures thereof.
[0025] Preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises a fragrance. More preferably, the aqueous liquid laundryAttorney Docket No. 86089-WO-PCTdetergent formulation of the present invention, optionally further comprises: 0 to 10 wt% (preferably, 0.001 to 5 wt%; more preferably, 0.005 to 3 wt%; most preferably, 0.01 to 2.5 wt%), based on the weight of the aqueous liquid laundry detergent formulation, of a fragrance.
[0026] Preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises a builder. More preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises: 0 to 50 wt% (preferably, 5 to 50 wt%; more preferably, 7.5 to 30 wt%), based on the weight of the aqueous liquid laundry detergent formulation, of a builder. Most preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises: 0 to 50 wt% (preferably, 5 to 50 wt%; more preferably, 7.5 to 30 wt%), based on the weight of the aqueous liquid laundry detergent formulation, of a builder; wherein the builder; wherein the builder is selected from the group consisting of inorganic builders (e.g., tripolyphosphate, pyrophosphate); alkali metal carbonates; borates; bicarbonates; hydroxides; zeolites; citrates (e.g., sodium citrate); polycarboxylates; monocarboxylates; aminotrismethylenephosphonic acid; salts of aminotrismethylenephosphonic acid; hydroxyethanediphosphonic acid; salts of hydroxyethanediphosphonic acid; diethylenetriaminepenta(methylenephosphonic acid); salts of diethylenetriaminepenta(methylenephosphonic acid); ethylenediaminetetraethylene- phosphonic acid; salts of ethylenediaminetetraethylene-phosphonic acid; oligomeric phosphonates; polymeric phosphonates; mixtures thereof.
[0027] Preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises a fabric softener. More preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises: 0 to 10 wt% (preferably, 0.5 to 10 wt%), based on the weight of the aqueous liquid laundry detergent formulation, of a fabric softener. Most preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises: 0 to 10 wt% (preferably, 0.5 to 10 wt%), based on the weight of the aqueous liquid laundry detergent formulation, of a fabric softener; wherein the fabric softener is selected from the group consisting of a cationic coacervating polymer (e.g., cationic hydroxyl ethyl cellulose; polyquaternium polymers and combinations thereof); a silicone (e.g., a silicone emulsion) and mixtures thereof.
[0028] Preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises a pH adjusting agent. More preferably, the aqueous liquid laundry detergent formulation of the present invention, optionally further comprises a pH adjusting agent; wherein the liquid laundry detergent formulation has a pH from 6 to 12.5Attorney Docket No. 86089-WO-PCT(preferably, 6.5 to 11; more preferably, 7.5 to 10). Bases for adjusting pH include mineral bases such as sodium hydroxide (including soda ash) and potassium hydroxide; sodium bicarbonate; sodium silicate; ammonium hydroxide; and organic bases (e.g., mono-, di- or tri- ethanolamine; and 2-dimethylamino-2-methyl-1-propanol (DMAMP)). Acids to adjust the pH include mineral acids (e.g., hydrochloric acid, phosphorus acid and sulfuric acid) and organic acids (e.g., acetic acid).
[0029] Preferably, the aqueous liquid laundry detergent formulation of the present invention, comprises: (a) 35 to 99.9 wt% (preferably, 40 to 98.5 wt%; more preferably, 50 to 95 wt%; most preferably, 60 to 86 wt%), based on weight of the liquid laundry detergent formulation, of water; (b) 0 to 60 wt% (preferably, 1 to 50 wt%; more preferably, 4 to 40 wt%; most preferably, 10 to 30 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a cleaning surfactant (other than the mixture of alkyl polyglycosides of (c)) (preferably, wherein the cleaning surfactant is selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants and mixtures thereof; more preferably, wherein the cleaning surfactant is selected from the group consisting of a mixture including an anionic surfactant and a non-ionic surfactant; most preferably, wherein the cleaning surfactant includes a mixture of a linear alkyl benzene sulfonate and a sodium lauryl ethoxysulfate); and (c) 0.1 to 50 wt% (preferably, 0.5 to 20 wt%; more preferably, 1 to 15 wt%; most preferably, 4 to 8 wt%), based on weight of the aqueous liquid laundry detergent formulation, of a mixture of alkyl polyglycosides comprising: a linear alkyl polyglucoside of formula A (preferably, >85 to 99 wt% (more preferably, 86 to 95 wt%; still more preferably, 87 to 95 wt%; yet more preferably, 88 to 92.5 wt%; most preferably, 89 to 91 wt%), based on weight of the mixture of alkyl polyglycosides, of the linear alkyl polyglucoside of formula A) R1-O-(G)nH (A) wherein R1is a linear C6-15 alkyl group (preferably, a linear C8-14 alkyl group; more preferably, a linear C8-10 alkyl group; still more preferably, at least one of a linear C8 alkyl group and a linear C10alkyl group; most preferably, a blend of a linear C8alkyl group and a linear C10 alkyl group); wherein n is an average of 1 to 5 (preferably, 1 to 3; more preferably, 1 to 2; most preferably, 1.1 to 2); wherein G is a monosaccharide of glucose; and a branched alkyl polysaccharide of formula B (preferably, 1 to <15 wt% (more preferably, 5 to 14 wt%; still more preferably, 5 to 13 wt%; yet more preferably, 7.5 to 12 wt%; most preferably, 9 to 11 wt%), based on weight of the mixture of alkyl polyglycosides, of the branched alkyl polysaccharide of formula B)Attorney Docket No. 86089-WO-PCT(B) 2wherein R is a linear or7group; a or7alkyl group; wherein g is an average of 1 to 5 (preferably, 1 to 3; more preferably, 1 to 2; most preferably, 1.1 to 2); wherein S is a monosaccharide with 5 or 6 carbon atoms (preferably, ribulose, xylulose, ribose, arabinose, xylose, lyxose, galactose, mannose, glucose and mixtures thereof; more preferably, arabinose, xylose, glucose and mixtures thereof; still more preferably, xylose, glucose and mixtures thereof; most preferably, glucose); with the proviso that the mixture of alkyl polyglycosides comprises < 15 wt% (preferably, 1 to 14 wt%; more preferably, 2 to 12.5 wt%; still more preferably, 5 to 12 wt%; most preferably, 8 to 11 wt%), based on weight of the mixture of alkyl polyglycosides, of a compound of formula I (I) wherein R4is a linear oralkyl group; wherein G1is a monosaccharide with 4 to 6 carbon atoms and wherein x is 1.1 to 4; with the proviso that R1is a linear C9-15 alkyl group in at least some of the linear alkyl polyglucoside of formula A; with the proviso that when the sum of carbon atoms in R2and R3is 7 to 9, the mixture of alkyl polyglycosides comprises < 1 wt% (preferably, < 0.5 wt%; more preferably, < 0.1 wt%; still more preferably, < 0.01 wt%; yet more preferably, < 0.001 wt%; still yet more preferably, < 0.0001 wt%; most preferably, less than detectable limit), based on weight of the mixture of alkyl polyglycosides, of an alkyl oligoglucoside of formula II R16-O-(G2)y (II) wherein R16is a branched C9-11alkyl group; wherein G2is a glucose unit and wherein y is 1.4 to 2.0; with the proviso that the mixture of alkyl polyglycosides comprises 0 to 35 wt% (preferably, 0 to 30 wt%; more preferably, 0 to 25 wt%; still more preferably, 0 to 20 wt%; yet more preferably, 0 to 15 wt%; still yet more preferably, 0 to 10 wt%; most preferably, lessAttorney Docket No. 86089-WO-PCTthan the detectable limit), based on weight of the mixture of alkyl polyglycosides, of a compound of formula III wherein R6is –(CH2)mCH(CH3)– with 4 to 6 carbon atoms; wherein z is 1.1 to 4 and wherein m is 0 to 3; with the proviso that the mixture of alkyl polyglycosides comprises < 3 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula IV wherein R12is -(CH2)pCH3;monosaccharide with 4 to 6 carbon atoms; wherein p is 1 to 4; wherein f is 1.1 to 10; with the proviso that when S is a monosaccharide with 5 carbon atoms, R3is a linear or branched C5alkyl group; and with any one or more of the following additional formulation provisos (i)- (vii)(each formulation proviso taken individually, all possible combinations of two or more formulation provisos and combinations of formulation proviso(s) with additional mixture proviso(s) discussed previously are contemplated): (i) with the proviso that the aqueous liquid laundry detergent formulation comprises ≤ 100 wt%, based on weight of the aqueous liquid laundry detergent formulation, of (a)+(b)+(c). (ii) with the proviso that the aqueous liquid laundry detergent formulation comprises < 0.05 wt% (preferably, < 0.01; more preferably, < 0.005; still more preferably, < 0.001; yet more preferably, < 0.0005; still yet more preferably, < 0.0001 wt%; most preferably, less than detectable limit), based on weight of the aqueous liquid laundry detergent formulation, of a fatty acid alkyl ester alkoxylate of formula V R14CO2-(AO)h-R15(V)Attorney Docket No. 86089-WO-PCTwherein R14is a linear or branched, saturated or unsaturated, alkyl group containing 5 to 21 carbon atoms; wherein AO is a C2-4alkylene oxide unit; wherein h is 1 to 30 and wherein R15is a linear or branched alkyl group containing 1 to 6 carbon atoms; (iii) with the proviso that the aqueous liquid laundry detergent formulation comprises < 0.01 wt% (preferably, < 0.005 wt%; more preferably, < 0.001 wt%; still more preferably, < 0.0001 wt%; yet more preferably, < 0.0001 wt%; still yet more preferably, < 0.00001 wt%; most preferably, less than detectable limit), based on weight of the aqueous liquid laundry detergent formulation, of a fatty acid ester of an alkyl glycoside having a fatty acid residue selected from the group consisting of R17(O)O- and / or R18(O)O-, wherein R17is a C12 or higher hydrocarbon and R18is a C6-10hydrocarbon; and (iv) with the proviso that the aqueous liquid laundry detergent formulation comprises < 0.1 wt% (preferably, < 0.05 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; still yet more preferably, < 0.00001 wt%; most preferably, less than detectable limit), based on weight of the aqueous liquid laundry detergent formulation, of a compound of formula VI R19-O-(G7)kH (VI) wherein R19is a linear C1-8alkyl group; wherein G7is a monosaccharide with 5 or 6 carbon atoms and wherein k is an average of 1 to 10; (v) with the proviso that the aqueous liquid laundry detergent formulation comprises < 0.1 wt% (preferably, < 0.05 wt%; more preferably, < 0.01 wt%; still more preferably, < 0.001 wt%; yet more preferably, < 0.0001 wt%; still yet more preferably, < 0.00001 wt%; most preferably, less than detectable limit), based on weight of the aqueous liquid laundry detergent formulation, of a compound of formula VII wherein R20is a linear or7alkyl group; wherein the sum ofmonosaccharide residue; and wherein r is 1 to 4; (vi) with the proviso that when the aqueous liquid laundry detergent formulation comprises both an anionic surfactant and a nonionic surfactant, the weight ratio of the anionic surfactant to the nonionic surfactant in the aqueous liquid laundry detergent formulation isAttorney Docket No. 86089-WO-PCT>1:1 (preferably, >2:1; more preferably >2.5:1); wherein the mixture of alkyl polyglycosides is not considered a nonionic surfactant for purposes of the weight ratio of anionic surfactant to nonionic surfactant (i.e., the anionic cleaning surfactant predominates over any nonionic surfactant present, excluding the mixture of alkyl polyglycosides) (i.e., the mixture of alkyl polyglycosides is not considered a nonionic surfactant for purposes of calculating this weight ratio of anionic to nonionic surfactant); and (vii) with the proviso that the aqueous liquid laundry detergent formulation is formulationally stable having a turbidity of 0 to < 15 Nephelometic Turbidity Units (NTU) measured usint a turbidity meter at 20 °C.
[0030] Preferably, the method of washing a soiled fabric article of the present invention, comprises: providing a soiled fabric article (preferably, wherein the soiled fabric article is soiled with at least one of sebum oil, dust and clay soil; more preferably, wherein the soiled fabric article is soiled with sebum oils and clay soil)(preferably, wherein the soiled fabric article is selected from the group consisting of stained cotton fabric, stained cotton interlock fabric, stained cotton terry fabric, stained polyester cotton blend fabric, stained polyester knit fabric, stained polyester woven fabric and mixtures thereof; more preferably, wherein the soiled fabric article is at least one of stained cotton fabric and stained cotton interlock fabric); providing an aqueous liquid laundry detergent formulation of the present invention; providing a wash water; and applying the wash water and the aqueous liquid laundry detergent formulation to the soiled fabric article to provide a washed fabric article. More preferably, the method of washing a soiled fabric article of the present invention, comprises: providing a soiled fabric article (preferably, wherein the soiled fabric article is soiled with at least one of sebum oil, dust and clay soil; more preferably, wherein the soiled fabric article is soiled with sebum oils and clay soil)(preferably, wherein the soiled fabric article is selected from the group consisting of stained cotton fabric, stained cotton interlock fabric, stained cotton terry fabric, stained polyester cotton blend fabric, stained polyester knit fabric, stained polyester woven fabric and mixtures thereof; more preferably, wherein the soiled fabric article is at least one of stained cotton fabric and stained cotton interlock fabric); providing an aqueous liquid laundry detergent formulation of the present invention; providing a wash water; providing a rinse water; applying the wash water and the aqueous liquid laundry detergent formulation to the soiled fabric article to provide a washed fabric article; and then applying the rinse water to the washed fabric article to remove the aqueous liquid laundry detergent formulation from the washed fabric article.Attorney Docket No. 86089-WO-PCT
[0031] Some embodiments of the present invention will now be described in detail in the following Examples. Syntheses S1-S8: Alkyl polyglycosides
[0032] A round-bottomed reactor was placed in an aluminum heating block and fitted with a 25 mL Dean-Stark trap (containing 15 mL hexanes) and a magnetic stir bar. To the reactor was added Sugar and n-butanol as noted in TABLE 1. The reactor contents were then stirred vigorously under a nitrogen blanket (bubbler). To the stirring reactor contents was added para-toluenesulfonic acid monohydrate (1 mol%) and the aluminum heating block set at temperature T1(noted in TABLE1) and maintained at that temperature until the rate of increase in water volume slowed to zero, for ~2-3 hours. The reactor contents were then allowed to cool to ambient temperature with continued stirring. Then Alcohol B (B molar equivalents) was added to the reactor contents as noted in TABLE 1. The Dean-Stark trap was then replaced with a still head and a condenser flask. The reactor contents were then vacuum distilled with the aluminum heating block set at temperature T2(noted in TABLE 1) and the condenser flask set in an ice-cooled bath. The vacuum was periodically adjusted to a flow rate of 1–2 drops / second. The vacuum was maintained for 2 to 4 hours. The distillation was then stopped. The distillation apparatus was placed back under a nitrogen atmosphere and the stirred contents of the reactor were allowed to cool to ambient temperature. A solution of sodium hydroxide was added to the stirring reactor contents as noted in TABLE 1. After vigorous stirring, the pH was measured (pH paper) to ensure the reactor contents were basic. A sample of the reactor contents was diluted with hexanes and purified via automated column chromatography. The alcohol eluted at a mobile phase concentration of 100% hexanes to 20 / 80 ethyl acetate / hexanes. The solvent mixture was then ramped over 2 column volumes to 100% ethyl acetate. The solvent system was then changed to ethyl acetate-methanol, and the solvent ratio was ramped over 1-6 column volumes to 60-100% methanol – during which time the product eluted as a mixture of mono- and polysaccharides. The solvent was removed under reduced pressure to give the final product.Attorney Docket No. 86089-WO-PCTTABLE 1 C 2 0 5 5 0 5 5 0 0 Cp p p q Formulation
[0033] An aqueous surfactant formulation was prepared in each of Comparative Examples CF1-CF19 and Examples F1-F2 having a 0.1 wt% concentration in water of the mixture of alkyl polyglycosides as noted in TABLE 2. Aqueous surfactant formulations were prepared in each of Comparative Example CF20 and Examples F3-F4 having a 5 wt% concentration in water of the mixture of alkyl polyglycosides as noted in TABLE 2. The formulations were prepared by adding the surfactants noted in TABLE2 to deionized water and vortex mixing for 30 seconds at a speed of 3,000 rpm. Following mixing, the samples were allowed to incubate in an oven set at 60 °C for ~12 hours. The samples were then allowed to cool to room temperature before further evaluation. Turbidity
[0034] The turbidity of the aqueous surfactant formulations prepared according to Comparative Examples CF1-CF20 and Examples F1-F4 was measured using a turbidity meter at 20 °C. The meter was calibrated according to instructions included with the machine. The results of the turbidity measurements are provided in TABLE 2. The aqueous surfactant formulations having a measured turbidity of < 15 Nephelometric Turbidity Units (NTU) are marked as clear and those with a turbidity of > 15 NTU are marked as turbid. Cleaning Performance
[0035] The cleaning performance of the aqueous surfactant formulations prepared according to Comparative Examples CF1-CF19 and Examples F1-F2 was determined using the following procedure. Beef tallow stained polycotton (CFT PC-S-62 from Testfabrics Inc.) were cut into 2.6" x 4.5" swatches which were subsequently glued to Leneta cards (using E6000 adhesive from Eclectic Products, LLC). The initial L*a*b* color values were measured for the soiled fabric using a colorimator. The cards were then placed in a device for retaining a nonporous substrate as described in U.S. Patent Application Publication No.Attorney Docket No. 86089-WO-PCT20100083778, the disclosure of which is incorporated herein by reference in its entirety, wherein the removable well insert had 24 openings. The individual openings were filled with 40 mL of a 1 wt% surfactant solution from one of Comparative Examples CF1-CF19 and Examples F1-F2 and capped with brushes made of nylon bristles adhered to 12.7 g conic weight. The plate and tile were mechanically moved laterally back and forth relative to one another at a rate of 50 strokes per minute for 30 minutes. The cards were then removed and the polycotton swatches on the cards were rinsed with deionized water for ~10 seconds and then placed in a dark room for 4 hours to dry. The L*a*b* color values were remeasured for the treated fabric and the cleaning was quantified by the color difference between post and prewashed color values (∆E). The test method results are correlated well with the industry standard Terg-O-Tometer test. The results are provided in TABLE2. TABLE 2 Surfactant(s) 4 4 1 1 3 1 6 2 1 7 3 1 1 2 1 3 1 1 1 1 4 yAttorney Docket No. 86089-WO-PCT(Prophetic) Comparative Examples C1-C19 and Examples 1-2: Liquid Laundry Detergent
[0036] Liquid laundry detergent formulation are prepared as described in TABLE 3 with surfactant from one of Comparative Examples C1-C19 and Example 1-2 as noted in TABLE 4. TABLE 3 In redient Commercial Name wt%Example Surfactant )
[0037] The primary cdry detergent formulations of Comparative Examples C1-C19 and Examples 1-2 are assessed in a Launder-Ometer (SDL Atlas, Model M228AA) at a set test temperature of 22 °C using an 18 minute wash cycle. Twenty of the 1.2 liter canisters are filled with 500 mL of hardness adjusted water at 100 ppm by mass with 2:1 Ca:Mg molar ratio are used for each run. TheAttorney Docket No. 86089-WO-PCTwashed fabrics are rinsed in 300 mL of 100 ppm (2 / 1 Ca / Mg) hardness adjusted water at ambient temperature for 5 minutes at 260 osc / min pm on an Eberbach E6000 reciprocal shaker. The stained fabrics and soiled ballasts used in the tests are PCS-S-132 high discriminative sebum BEY pigment and PCS-S-94 sebum / dust ASTM stains from Testfabrics stitched to a pre-shrunk cotton interlock fabric. The size of the cotton interlock is 5x5 cm. The stained swatches are 2.5 x 3 cm. One 5 x 5 cm cut SBL-CFT soil ballast is added to each canister to provide baseline soil to the wash solution. The total surfactant concentration in the wash liquor is 200 ppm. Reflectance measurement and Stain Removal Index (SRI) (Prophetic)
[0038] The soil removal index (SRI) for each of the aqueous liquid laundry Detergent formulations evaluated in Primary Cleaning Performance Test are determined using ASTM Method D4265-14. The average SRI is taken from 8 swatches per condition (two swatches per pot, 4 pots).
[0039] The L*, a*and b*values of the stained fabrics are measured pre and post wash with a Mach 5 spectrophotometer from Colour Consult. The L*, a*and b*values for the unwashed, unstained polycotton fabric are measured in the SRI calculations as follows: (∆^∗(^ − ∆^∗ ^^^ = ^^^^) (^^^^^)∗ × 100wherein US is the fabric area, WS is thewashed stain area, ΔE*(US-UF)is the ΔE*color difference between the unwashed stain and the unwashed fabric and ΔE*(WS-UF) is the ΔE*color difference between the washed stain and the unwashed fabric. The value of ΔE*is calculated as ΔE*= (ΔL*2+ Δa*2+ Δb*2)½The performance for the inventive aqueous liquid laundry detergent formulation is determined to have improved cleaning performance relative to the comparative formulations.
Claims
Attorney Docket No. 86089-WO-PCTWe claim:
1. An aqueous liquid laundry detergent formulation, comprising: (a) 35 to 99.9 wt%, based on weight of the aqueous liquid laundry detergent formulation, of water; (b) 0 to 60 wt%, based on weight of the aqueous liquid laundry detergent formulation of, a cleaning surfactant; and (c) 0.1 to 50 wt%, based on weight of the aqueous liquid laundry detergent formulation, of a mixture of alkyl polyglycosides comprising: a linear alkyl polyglucoside of formula A R1-O-(G)nH (A) wherein R1is a linear C6-15 alkyl group; wherein n is an average of 1 to 5; wherein G is a monosaccharide of glucose; and a branched alkyl polysaccharide of formula B (B) wherein R2is a linear oralkyl group; wherein g is an average of 1 to 5; wherein S is a monosaccharide with 5 or 6 carbon atoms; with the proviso that the mixture of alkyl polyglycosides comprises < 15 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula I (I) wherein R4is a linear or alkyl group; wherein G1is ato 4; with the proviso that R1is a linear C9-15alkyl group in at least some of the linear alkyl polyglucoside of formula A;Attorney Docket No. 86089-WO-PCTwith the proviso that when the sum of carbon atoms in R2and R3is 7 to 9, the mixture of alkyl polyglycosides comprises < 1 wt%, based on weight of the mixture of alkyl polyglycosides, of an alkyl oligoglucoside of formula II R16-O-(G2)y(II) wherein R16is a branched C9-11 alkyl group; wherein G2is a glucose unit and wherein y is 1.4 to 2.0; with the proviso that the mixture of alkyl polyglycosides comprises 0 to 35 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula III wherein R6is –(CH2)mCH(CH3)with 4 to 6 carbon atoms; wherein z is 1.1 to 4 and wherein m is 0 to 3; with the proviso that the mixture of alkyl polyglycosides comprises < 3 wt%, based on weight of the mixture of alkyl polyglycosides, of a compound of formula IV wherein R12is -(CH2)pCH3;monosaccharide with 4 to 6 with the proviso that when S is a monosaccharide with 5 carbon atoms, R3is a linear or branched C5alkyl group.
2. The aqueous liquid laundry detergent formulation of claim 1, wherein the mixture of alkyl polyglycosides comprises >85 to 99 wt%, based on weight of the mixture of alkyl polyglycosides, of the linear alkyl polyglucoside of formula A; and 1 to < 15 wt%, based on weight of the mixture of alkyl polyglycosides, of the branched alkyl polysaccharide of formula B.
3. The aqueous liquid laundry detergent formulation of claim 1, wherein the mixture of alkyl polyglycosides comprises 95 to 100 wt%, based on weight of the aqueousAttorney Docket No. 86089-WO-PCTliquid laundry detergent formulation, of all alkyl polyglycosides present in the aqueous cleaning formulation.
4. The aqueous liquid laundry detergent formulation of claim 3, wherein the mixture of alkyl polyglycosides comprises >85 to 99 wt%, based on weight of the mixture of alkyl polyglycosides, of the linear alkyl polyglucoside of formula A; and 1 to < 15 wt%, based on weight of the mixture of alkyl polyglycosides, of the branched alkyl polysaccharide of formula B.
5. The aqueous liquid laundry detergent formulation of claim 4, wherein the aqueous liquid laundry detergent formulation comprises 1 to 50 wt%, based on weight of the aqueous liquid laundry detergent formulation, of the cleaning surfactant; wherein the cleaning surfactant is an anionic cleaning surfactant.
6. The aqueous liquid laundry detergent formulation of claim 5, further comprising an ingredient selected from the group consisting of an abrasive, an antimicrobial agent, a bleaching agent, a buffering agent, a builder, a chelating agent, a cleaning booster, a corrosion inhibitor, a dispersant polymer, a dye, an enzyme, a fabric softener, a fragrance, a hydrotrope, an organic solvent, a pH adjuster, poly(alkylene oxide) polymer, a rheology modifier, a salt, a structuring agent, sulfonated polymer and mixtures thereof.
7. The aqueous liquid laundry detergent formulation of claim 6, further comprising an organic solvent.
8. The aqueous liquid laundry detergent formulation of claim 7, further comprising a hydrotrope.
9. A method of washing a soiled fabric article, comprising: providing a soiled fabric article; providing an aqueous liquid laundry detergent formulation according to claim 1; providing water; applying the water and the aqueous liquid laundry detergent formulation to the soiled fabric article to provide a washed fabric article.
10. The method of claim 9, wherein the aqueous liquid laundry detergent formulation is an aqueous liquid laundry detergent formulation according to claim 8.
Citation Information
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