C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
31/44
C23F 11/00 (2006.01)
Patent
CA 1149597
ABSTRACT OF THE DISCLOSURE A composition is disclosed comprising a stable aqueous solution of (i) water-soluble zinc compound, (ii) water-soluble chromate compound and (iii) a particular type of water-soluble polymer composed essentially of moieties derived from acrylic acid and hydroxylated lower alkyl acrylates. The composition could additionally comprise (iiii) orthophosphate. The composition is used in a method for reducing corrosion of metal surfaces.
371586
Geiger Gary E.
May Roger C.
Betz Laboratories Ltd./ltee
Borden Ladner Gervais Llp
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