Effervescence components

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 3/10 (2006.01) C11D 1/22 (2006.01) C11D 3/00 (2006.01) C11D 3/20 (2006.01) C11D 3/34 (2006.01) C11D 11/00 (2006.01) C11D 17/06 (2006.01)

Patent

CA 2352627

The present invention provides an effervescence composition comprising an acid source and a carbon dioxide source, wherein at least 85 % of said acid source has a particle size from 0.1 to 150 microns, preferably from 0.5 to 100 microns. The carbon dioxide source is preferably also of a small particle size. The effervescence composition is in particular useful in solid detergent compositions. The effervescence component is preferably in the form of a granule comprising at least part of the acid source and the at least part of the carbon dioxide source. The effervescence component can also be coated by a coating comprising an alkoxylated alcohol having an alkoxylation degree of at least 20.

L'invention concerne une composition effervescente qui comprend une source d'acide et une source de dioxyde de carbone, dans laquelle au moins 85 % de la source d'acide a une granulométrie comprise entre 0,1 et 150 micromètres, de préférence entre 0,5 et 100 micromètres. De préférence, la source de dioxyde de carbone a aussi une faible granulométrie. La composition effervescente est particulièrement utile dans des compositions détergentes solides. Le composant effervescent se présente de préférence sous la forme d'une granule comprenant au moins une partie de la source d'acide et au moins une partie de la source de dioxyde de carbone. Le composant effervescent peut également être enrobé avec une substance possédant un degré d'alcoxylation d'au moins 20.

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