C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 1/65 (2006.01) C11D 1/86 (2006.01) C11D 3/34 (2006.01) C11D 17/00 (2006.01) C11D 1/29 (2006.01) C11D 1/52 (2006.01) C11D 1/72 (2006.01)
Patent
CA 2189544
Concentrated heavy duty liquid laundry detergent compositions containing an anionic surfactant component, polyhydroxy fatty acid amide surfactant and a water-soluble salt of toluene sulfonic acid, and containing no more than about 50 % water. The concentration of all surfactants in the detergent compositions is greater than about 10 % by weight of the composition. The anionic surfactant component comprises between about 50 % and 100 % alkyl polyethoxylate sulfates. The compositions are substantially clear and isotropic when prepared and remain stable after extended periods of time and under extreme conditions. Toluene sulfonate salts, although known hydrotropes, provides improved phase stability to the compositions unlike other standard hydrotopes and solvents.
L'invention concerne une composition concentrée de détergent liquide pour le lavage du linge ordinaire en machine, contenant un tensioactif anionique, un tensioactif du type amide polyhydroxylé d'acide gras et un sel hydrosoluble de l'acide toluène sulfonique. Le détergent ne contient pas plus de 50 % d'eau environ. La concentration de tous les tensioactifs de la composition détergente est supérieure à environ 10 % en poids de la composition. Le composant tensioactif anionique contient entre environ 50 % et environ 100 % d'alkyléthersulfates. Les compositions sont sensiblement limpides et isotropes au moment de leur préparation et restent stables après une longue conservation, même dans des conditions extrêmes. Les sels toluène sulfonates, qui sont des hydrotropes connus, permettent d'améliorer la stabilité de la composition davantage que d'autres hydrotropes et solvants usuels.
Kirby Eades Gale Baker
The Procter & Gamble Company
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