Cleaning compositions containing a crystalline builder...

Details Cleaning compositions containing a crystalline builder... Cleaning compositions containing a crystalline builder...

C - Chemistry, Metallurgy

11

D

C11D 3/12 (2006.01) C11D 3/10 (2006.01) C11D 17/06 (2006.01)

Patent

CA 2222543

The invention provides cleaning compositions containing a builder material which has substantially improved performance and is significantly less expensive than previous builders. The builder material has improved performance in that it unexpectedly has a high calcium ion exchange capacity and rate, and is easy to handle, process and disperse in washing solutions. The cleaning compositions contain a builder material having at least one crystalline microstructure including a carbonate anion, calcium cation and at least one water-soluble cation, wherein the builder has a particle size diameter within selected ranges for optimal performance. The microstructure should have a sufficient number of anions and cations so as to be "balanced" or "neutral" in charge.

Cette invention concerne des compositions de nettoyage contenant un adjuvant qui possède une efficacité sensiblement améliorée et qui est bien moins coûteux que les adjuvants actuels. Cet adjuvant possède une meilleure efficacité en ce sens qu'il possède une capacité et une rapidité d'échange d'ions calcium étonnamment élevées, et qu'il est facile à manipuler, à traiter et à disperser dans des solutions de lavage. Les compositions de nettoyage contiennent un adjuvant présentant au moins une microstructure cristalline comprenant un anion de carbonate, un cation de calcium et au moins un cation soluble dans l'eau, l'adjuvant présentant des particules d'un diamètre se situant dans des plages choisies en vue d'une meilleure efficacité. La microstructure doit posséder un nombre suffisant d'anions et de cations de manière à avoir une charge "équilibrée" ou "neutre".

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