A process for treating a surface

B - Operations – Transporting – 24 – C

Patent

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Details

B24C 11/00 (2006.01) A61C 3/025 (2006.01) A61C 3/06 (2006.01)

Patent

CA 2473732

A process for treating a surface (2) to clean or otherwise treat the surface (2) comprises a step of contacting the surface (2) with a particulate treating agent such that at least some of the particles (1) roll along at least a portion of the surface (2), wherein an angle of incidence of the particles (1) and the surface is between 0~ and 60~. The particles (1) are dimensioned to effect a rolling movement along the surface (2). The treating agent is substantially non-aqueous. The particles (1) comprise a precipitate or agglomerate of an insoluble alkali metal carbonate. The process comprises a blasting operation or a manual application. The use of the process of the invention in dental applications such as teeth whitening and plaque removal, treating bone, and skin exfoliation, is also disclosed. Also disclosed is a treating agent which comprises a plurality of particles (1), the particles (1) being dimensioned to effect a rolling movement along a surface (2), wherein the treating agent is substantially non-aqueous.

L'invention a trait à un procédé de traitement d'une surface (2) destiné à nettoyer ou à traiter la surface (2). Ce procédé consiste à amener un agent de traitement particulaire en contact avec la surface (2) de sorte qu'au moins quelques particules (1) roulent sur au moins une partie de la surface (2), les particules (2) formant un angle d'incidence compris entre 0· et 60· par rapport à la surface. Les particules (1) sont d'un calibre calculé pour leur permettre de rouler sur la surface (2). L'agent de traitement est sensiblement non aqueux. Les particules (1) comprennent un précipité ou un agglomérat d'un carbonate de métaux alcalins. Ce procédé consiste en une opération de décapage ou en une application manuelle. L'utilisation du procédé de l'invention dans des applications dentaires, telles qu'un blanchiment des dents et l'élimination de la plaque dentaire, dans le traitement des os et dans l'exfoliation de la peau est aussi décrite. L'invention a trait également à un agent de traitement comprenant une pluralité de particules (1), ces particules (1) présentant un calibre calculé de façon à leur permettre de rouler sur une surface (2), l'agent de traitement étant sensiblement non aqueux.

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