C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
400/9294
C09D 5/08 (2006.01) C08K 3/22 (2006.01) C08L 33/00 (2006.01)
Patent
CA 1047666
ABSTRACT OF THE DISCLOSURE An aqueous composition for treating a metal surface consisting essentially of from about 0.1 grams/liter to about 3.5 grams/liter of a soluble zirconium compound, measured as ZrO2, and from about 0.1 grams/liter to about 5.0 grams/liter of a polymeric material selected from the group consisting of polyacrylic acid, esters, and salts thereof, said composition having a pH from about 6.0 to about 8Ø Metal surfaces treated with such a composition exhibit improved bonding characteristics toward a siccative coating.
304595
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