C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
31/43
C09D 5/08 (2006.01) B05D 3/10 (2006.01) C09K 15/02 (2006.01) C09K 15/04 (2006.01) C09K 15/34 (2006.01) C23C 22/34 (2006.01) C23C 22/42 (2006.01) C23F 11/00 (2006.01) C23F 11/04 (2006.01)
Patent
CA 1160824
ABSTRACT OF THE DISCLOSURE An aqueous acidic composition provides improved corrosion resistance to a metal, e.g., ferrous, zinc or aluminum surface upon contact. The composition contains dissolved zirconium with or without hafnium and fluoride and preferably a vegetable tannin compound.
381650
Hooker Chemicals And Plastics Corp.
Swabey Ogilvy Renault
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