DISPERSION COMPRISING CERIUM OXIDE, SILICON DIOXIDE AND AMINO ACID

A dispersion comprising particles of cerium oxide and sheet silicate and one or more aminocarboxylic acids and/or salts thereof, where the zeta potential of sheet silicate particles is negative and that of the cerium oxide particles is positive or equal to zero, and the zeta potential of the dispers...

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Bibliographic Details
Main Authors HEBERER STEFAN, DAUTH KATHARINA, KROELL MICHAEL
Format Patent
LanguageEnglish
Published 08.07.2010
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
POLISHING COMPOSITIONS OTHER THAN FRENCH POLISH
SKI WAXES
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Summary:A dispersion comprising particles of cerium oxide and sheet silicate and one or more aminocarboxylic acids and/or salts thereof, where the zeta potential of sheet silicate particles is negative and that of the cerium oxide particles is positive or equal to zero, and the zeta potential of the dispersion is negative overall, the mean diameter of the*cerium oxide particles is not more than 200 nm*sheet silicate particles is less than 100 nm, the content, based in each case on the total amount of the dispersion, of*cerium oxide particles is from 0.1 to 5% by weight*sheet silicate particles is from 0.01 to 10% by weight and*aminocarboxylic acid or salt thereof is from 0.01 to 5% by weight and the pH of the dispersion is from 7.5 to 10.5.
Bibliography:Application Number: US20080601576