Particulate detergent compositions

C - Chemistry – Metallurgy – 11 – D

Patent

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C11D 3/08 (2006.01) C11D 3/06 (2006.01) C11D 3/10 (2006.01) C11D 3/12 (2006.01) C11D 3/16 (2006.01) C11D 3/20 (2006.01) C11D 17/06 (2006.01)

Patent

CA 2108906

Particulate compositions are provided incorporating from about 10 % to about 95 % by weight of a crystalline layered silicate material of the formula Na MSixO2x + 1 yH2O, where M is sodium or hydrogen, x is a number from about 1.9 to 4 and y is a number from 0 to about 20 and from about 5 % to about 90 % by weight of a solid water soluble ionisable material selected from organic acids, organic and inorganic acid salts and mixture thereof, said solid water soluble ionisable material naming a mean particle size not greater than about 100 micrometers, said particulate compositions being substantially free of unbound moisture. The particulates can optionally contain up to about 50 % by weight of a surfactant and/or up to about 50 % by weight of other detergent ingredients. Fully formulated detergent compositions incorporating the particulate compositions are also disclosed.

Compositions particulaires dans lesquelles sont incorporés environ 10 % à 95 % en poids d'un silicate stratifié cristallisé de formule Na MSixO2x + 1 yH2O - où M est du sodium ou de l'hydrogène, x est un nombre d'environ 1,9 à 4 et y est un nombre d'environ 0 à 20 - et environ 5 % à 90 % en poids d'une matière solide ionisable hydrosoluble, choisie parmi des acides organiques, des sels d'acides organiques et minéraux, ainsi que de leurs mélanges; la matière solide ionisable hydrosoluble est constituée de particules dont la taille ne dépasse pas 100 microns; les compositions particulaires sont pratiquement exemptes d'humidité libre. Les particules peuvent, facultativement, renfermer jusqu'à 50 % environ en poids d'un surfactif et (ou) jusqu'à 50 % environ en poids d'autres ingrédients détergents. L'invention présente également des compositions détergentes complètement formulées, incorporant les compositions particulaires.

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