Protective compositions for steel surfaces and the process...

Details Protective compositions for steel surfaces and the process... Protective compositions for steel surfaces and the process...

C - Chemistry, Metallurgy

09

D

148/17, 31/43

C09D 5/08 (2006.01) C23C 22/10 (2006.01)

Patent

CA 1135040

ABSTRACT The invention refers to new composition for protecting steel surfaces from the oxidising action of atmosphere. The essential components are: glucosides of pyrogallic and/or allagic acid of molecular weight between 270 and 1200; phosphoric acid, phosphates of bivalent transition metals such as Zn and Mn and nitrates of bivalent metals such as Zn and Mn

347680

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