C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 5/12 (2006.01) C09D 1/00 (2006.01) C09D 183/02 (2006.01)
Patent
CA 2261281
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.
Morris Brenda S.
Pomrink Gregory J.
Betzdearborn Inc.
Borden Ladner Gervais Llp
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