Concentrated aqueous surfactants

C - Chemistry – Metallurgy – 11 – D

Patent

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31/10, 167/3, 13

C11D 1/29 (2006.01) A01N 25/30 (2006.01) B01F 17/00 (2006.01) C11D 1/37 (2006.01) C11D 1/83 (2006.01) C11D 3/08 (2006.01) C11D 3/10 (2006.01) C11D 3/14 (2006.01) C11D 7/02 (2006.01) C11D 7/10 (2006.01) C11D 7/22 (2006.01) C11D 17/00 (2006.01) C11D 1/04 (2006.01) C11D 1/14 (2006.01) C11D 1/22 (2006.01) C11D 1/72 (2006.01)

Patent

CA 2040150

Concentrated surfactant compositions comprise water and from 30 to 55% by weight of surfactant based on the total weight of surfactant and water. The surfactant comprises at least 8% based on the total weight of the composition of at least one anionic surfactant which is capable of forming a 20% L1 micellar solution with a cloud point below 0°C such as an alkyl ether sulphate and preferably at least one other surfactant such as sodium alkyl benzene sulphonate, soap and or a nonionic surfactant. In the absence of electrolyte the composition is a viscous, pourable phase with hexagonal symmetry by x-ray diffraction. Electrolyte forms an optically isotropic clear, Newtonian liquid detergent composition with an x-ray scattering peak between 4 and 6 nm and sufficient-desolubiliser forms a spherulitic suspending medium capable of suspending builders such as zeolite to provide compact liquid detergents.

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