Gel laundry detergent composition
First Claim
1. A shear thinning, transparent lamellar-phase gel laundry detergent composition, comprising a surfactant system containing surfactant material selected from an anionic surfactant, a nonionic surfactant or a mixture thereof, and from 0.5 to 5% by weight of a clarity improving agent being a glycol dialkyl ether selected from a mono- or polyethylene glycol dialkyl ether having the formula
(CpH2p+1)O—
- (CH2CH2O)n—
(CqH2q+1)
(I)a mono- or polypropylene glycol dialkyl ether having the formula
(CpH2p+1)O—
(CH2CH(CH3)O)n—
(CqH2q+1)
(II),
and mixtures thereof,wherein p and q independently are integers in the range of from 1 to 5, and n is an integer in the range of from 1 to 50, preferably 1 to 10.
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Abstract
The present invention provides a shear thinning, transparent gel laundry detergent composition, comprising a surfactant system containing surfactant material selected from an anionic surfactant, a nonionic surfactant or a mixture thereof, and from 0.1 to 10% by weight of a clarity improving agent being a glycol dialkyl ether selected from
- a mono-or polyethylene glycol dialkyl ether having the formula
(CpH2p+1)O—(CH2CH2O)n—(CqH2q+1), (I) - a mono- or polypropylene glycol dialkyl ether having the formula
(CpH2p+1)O—(CH2CH (CH3)O)n—(CqH2q+1), (II) - and mixtures thereof,
wherein p and q independently are integers in the range of from 1 to 5, and n is an integer in the range of from 1 to 50, preferably 1 to 10. It has been found that this gel laundry composition is highly transparent, such that particles can be suspended therein for improving visual appearance.
- a mono-or polyethylene glycol dialkyl ether having the formula
-
Citations
15 Claims
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1. A shear thinning, transparent lamellar-phase gel laundry detergent composition, comprising a surfactant system containing surfactant material selected from an anionic surfactant, a nonionic surfactant or a mixture thereof, and from 0.5 to 5% by weight of a clarity improving agent being a glycol dialkyl ether selected from a mono- or polyethylene glycol dialkyl ether having the formula
(CpH2p+1)O—- (CH2CH2O)n—
(CqH2q+1)
(I)a mono- or polypropylene glycol dialkyl ether having the formula
(CpH2p+1)O—
(CH2CH(CH3)O)n—
(CqH2q+1)
(II),
and mixtures thereof,wherein p and q independently are integers in the range of from 1 to 5, and n is an integer in the range of from 1 to 50, preferably 1 to 10. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
wherein; R1, R2 are independently selected from hydrogen and saturated or unsaturated, linear or branched, C1—
C16 alkyl groups, wherey the total number of carbon atoms in the fatty alcohol is between 8 and 17.
- (CH2CH2O)n—
-
5. A composition according to claim 4, wherein the fatty alcohol gelling agent is selected from 1-decanol, 1-dodecanol, 2-decanol, 2-dodecanol, 2-methyl-1-decanol, 2-methyl-1-dodecanol, 2-ethyl-1-decanol, and mixtures thereof.
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6. A composition according to claim 3, wherein the gelling agent is a non-neutralised fatty acid having the formula
R3—- (COOH)—
R4
(IV),wherein; R3 and R4 are independently selected from hydrogen and saturated or unsaturated, linear or branched C1-C22 alkyl groups, whereby the total number of carbon atoms in the fatty acid is between 10 and 23.
- (COOH)—
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7. A composition according to claim 6, wherein the fatty acid gelling agent is selected from oleic acid, lauric acid, myristic acid, palmitic acid, stearic acid, linoleic acid, linolenic acid and mixtures thereof.
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8. A composition according to claim 3, wherein the gelling agent is a naturally obtainable fatty acid selected from tallow, coconut, and palm kernel fatty acids.
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9. A composition according to claim 1, wherein the surfactant system contains an anionic surfactant selected from the group consisting of linear alkyl benzene sulphonate, alkyl polyether sulphate, alkyl sulphate, alkyl sulphonate and mixtures thereof.
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10. A composition according to claim 1, wherein the anionic surfactant is present at a concentration of from 5 to 50% by weight, preferably from 5 to 25% by weight.
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11. A composition according to claim 1, wherein the nonionic surfactant is an ethoxylated alcohol having 3 to 11 ethylene oxide groups.
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12. A composition according to claim 1, wherein the nonionic surfactant is present at a concentration of from 5 to 50% by weight, preferably from 5 to 30% by weight.
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13. A composition according to claim 1, wherein the composition additionally comprises a detergency builder selected from the group consisting of carboxylates, polycarboxylates, aminocarboxylates, carbonates, bicarbonates, phosphates, phosphonates, silicates, borates, and mixtures thereof.
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14. A composition according to claim 1, wherein the composition has at least 50%, preferably at least 70%, transmittance of light using a 1 centimeter cuvette at a wavelength of 410-800 nm, preferably 570-690 nm, whereby the composition is measured in the absence of dyes.
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15. Method of improving the clarity and transparency of a shear thinning, transparent, lamellar-phase gel laundry detergent composition, said method comprising the steps of (a) preparing said composition by mixing the ingredients thereof, said composition comprising a surfactant system containing surfactant material selected from an anionic surfactant, a nonionic surfactant or a mixture thereof, and (b) adding from 0.5-5 by weight of a glycol dialkyl ether, as specified in claim 1, to said composition.
Specification