Amphiphilic water-soluble alkoxylated polyalkyleneimines...

C - Chemistry – Metallurgy – 08 – G

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C08G 73/02 (2006.01) C08L 79/02 (2006.01)

Patent

CA 2702921

The present invention relates to amphiphilic water-soluble alkoxylated polyalkyleneimines having an inner polyethylene oxide block comprising 20 to 50 polyethylene oxide units and an outer polypropylene oxide block comprising 10 to 50 polyethylene oxide units and especially to such alkoxylated polyalkyleneimines wherein the ratio of polyethylene oxide units and polypropylene oxide units is proportionally related to the square root of the number of polyalkyleneimine units present in the backbone. The present invention further relates to the use of these alkoxylated polyalkyleneimines as a soil detachment promoting additive to laundry detergents and cleaning compositions and to laundry detergents and cleaning compositions which comprise these alkoxylated mono- or polyalkyleneimines.

La présente invention concerne des polyalkylèneimines alcoxylés amphiphiles solubles dans l'eau présentant un bloc interne d'oxyde de polyéthylène constitué de 20 à 50 unités d'oxyde de polyéthylène, et un bloc externe d'oxyde de polypropylène constitué de 10 à 50 unités d'oxyde de polypropylène. Elle concerne en particulier des polyalkylèneimines alcoxylés dans lesquels le ratio des unités d'oxyde de polyéthylène aux unités d'oxyde de polypropylène se rapporte en proportion à la racine carrée du nombre d'unités de polyalkylèneimines présentes dans le squelette. L'invention concerne également l'utilisation desdits polyalkylèneimines alcoxylés comme additifs anti-taches pour détergents à lessive et compositions de nettoyage. Elle concerne en outre des détergents à lessive et des compositions de nettoyage comprenant ces mono- ou polyalkylèneimines alcoxylés.

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