C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/386 (2006.01) C11D 1/29 (2006.01) C11D 3/04 (2006.01) C11D 3/20 (2006.01) C11D 17/08 (2006.01)
Patent
CA 2124788
Liquid laundry detergent compositions containing anionic or nonionic surfactant, citric acid or a water-soluble salt thereof, proteolytic enzyme, cellulase, and a mixture of 1,2 propane diol and boric acid or its derivative. The compositions are prepared by adding the diol and boric acid before adding the citric acid/salt to the composition. This order of addition improves the stability of the cellulase.
Compositions détergentes liquides pour lessive contenant un surfactant anionique ou non ionique, de l'acide citrique ou un sel hydrosoluble de l'acide citrique, une enzyme protéolytique, de la cellulase et un mélange de 1,2-propanediol et d'acide borique ou de ses dérivés. Les compositions sont préparées par addition du diol et de l'acide borique avant l'addition de l'acide citrique/sel d'acide citrique. L'ordre dans lequel les constituants sont ajoutés permet d'améliorer la stabilité de la cellulase.
Boyer Stanton L.
Farwick Timothy J.
Kirby Eades Gale Baker
The Procter & Gamble Company
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