C - Chemistry – Metallurgy – 23 – F
Patent
C - Chemistry, Metallurgy
23
F
31/35
C23F 11/08 (2006.01) C02F 5/10 (2006.01) C02F 5/12 (2006.01) C02F 5/14 (2006.01)
Patent
CA 1131436
Abstract of the Invention The invention deals with a method and composition(s) for use in inhibiting corrosion of metallic parts in contact with aqueous systems. It has been discovered that protective oxide films can be formed on the metallic surface if such is allowed to contact an aqueous system containing a sufficient amount for the purpose of a polymer composed primarily of acrylic moieties and hydroxylated lower alkyl acrylate moieties and a water-soluble orthophosphate. Optionally but desirably, polyphosphates, organo-phosphonates, and copper corrosion inhibitors may be included.
351751
Geiger Gary E.
May Roger C.
Betz Laboratories Limited/limitee
Borden Ladner Gervais Llp
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