C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/10 (2006.01) C11D 3/12 (2006.01) C11D 3/22 (2006.01) C11D 17/00 (2006.01)
Patent
CA 2231646
A detergent composition containing an inexpensive detergent builder in the form of a selected crystalline calcium carbonate that has been coated with an encapsulating material such as a carbohydrate is provided. The crystalline calcium carbonate can be calcite and the encapsulating material can be sucrose. The crystalline calcium carbonate of the present invention is extremely inexpensive because it performs well even when used at large median particle sizes (e.g. less than 10 m2/g surface areas).
L'invention porte sur une composition détergente renfermant un adjuvant peu coûteux sous forme d'un carbonate de calcium cristallisé sélectionné, revêtu d'une matière d'encapsulation, comme un glucide. Le carbonate de calcium cristallisé peut être du calcite et la matière d'encapsulation du sucrose. Le carbonate de calcium cristallisé de la présente invention est d'un coût extrêmement bas, car il agit efficacement même lorsqu'il est employé sous forme de particules de grande taille médiane (p. ex. moins de 10 m2/g d'aire surfacique).
Kvietok Frank Andrej
Pancheri Eugene Joseph
Kirby Eades Gale Baker
The Procter & Gamble Company
The University Of North Carolina At Chapel Hill
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