Process of cleaning enamel surfaces

Details Process of cleaning enamel surfaces Process of cleaning enamel surfaces

C - Chemistry, Metallurgy

11

D

C11D 11/00 (2006.01) C11D 3/02 (2006.01) C11D 3/10 (2006.01) C11D 3/20 (2006.01) C11D 1/14 (2006.01) C11D 1/72 (2006.01)

Patent

CA 2349535

The present invention describes a process of cleaning an enamel surface with a liquid acidic composition comprising an enamel safe buffering system wherein said buffering system comprises a salt having: and anion selected from the group consisting of hydroxide and carbonate; and a cation that has an ionic radius larger than 115 pm; with the proviso that no ethers of diethylene glycol are present in said composition. The compositions employed in said process are safe to enamel.

Cette invention se rapporte à un procédé de nettoyage d'une surface en émail à l'aide d'une composition d'acide liquide contenant un système tampon préservant l'émail, ce système renfermant un sel constitué: par un anion choisi dans le groupe de l'hydroxyde et du carbonate; et un cation ayant un rayon ionique supérieur à 115 pm; à condition qu'aucun éther de diéthylèneglycol ne soit présent dans ladite composition. Les compositions utilisées dans ce procédé préservent l'émail.

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