Stabilized composition for treatment of metal surfaces

Compositions: coating or plastic – Coating or plastic compositions – Silicon containing other than solely as silicon dioxide or...

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10628724, 106 1414, 525100, 427387, C08G 7702

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active

059682469

ABSTRACT:
An aqueous stabilized composition for the treatment of surfaces such as metals, particularly aluminum, comprises a tetraalkyl silicate or a monomeric or oligomeric hydrolysis product thereof, an inorganic passenger powder below 100 nanometer diameter such as fumed or colloidal silica and a stabilizer, all dispersed in a fluid aqueous medium. The stabilizer comprises a carboxylic acid polymer, copolymer or salt thereof, preferably an acrylic acid polymer, copolymer or salt thereof, and most preferably a polyacrylic acid.

REFERENCES:
patent: 5514211 (1996-05-01), Marks et al.
patent: 5879437 (1999-03-01), Hartman

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