High active granular detergents comprising chelants and...

Details High active granular detergents comprising chelants and... High active granular detergents comprising chelants and...

C - Chemistry, Metallurgy

11

D

C11D 1/02 (2006.01) C11D 3/16 (2006.01) C11D 3/33 (2006.01) C11D 3/36 (2006.01) C11D 3/37 (2006.01) C11D 11/00 (2006.01) C11D 17/00 (2006.01) C11D 17/06 (2006.01)

Patent

CA 2159178

A free-flowing granular detergent component or composition having a bulk density of at least 650 g/l which comprises (i) at least 35 % by weight of anionic surfactant; (ii) 0.5 % to 10 % by weight of a chelating agent; (iii) 0.5 % to 30 % by weight of a polymer or co-polymer wherein the weight ratio of chelating agent to polymer/co-polymer is from 1:100 to 1:1. A process for making the granular detergent component or composition is also described. It is an essential feature of this process that aqueous solutions of a chelating agent and a polymer or co-polymer are added to a high active surfactant paste.

Composant ou composition de détergents granuliformes à écoulement libre, d'une masse volumique non tassée d'au moins 650 g/l et dont le poids est composé (i) pour au moins 35 % d'un surfacteur anionique, (ii) pour 0,5 % à 30 % d'un agent chélatant et (iii) pour 0,5 % à 35 % d'un polymère ou copolymère, le rapport de poids entre l'agent chélatant et celui du polymère/copolymère se situant entre 1:100 et 1:1. On décrit également un procédé de production de ce composant ou de cette composition de détergent granuliforme. Ce procédé se caractérise en ce que l'on additionne des solutions aqueuses d'un agent chélatant et d'un polymère ou copolymère à une pâte hautement tensioactive.

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