Corrosion inhibitor

Details Corrosion inhibitor Corrosion inhibitor

C - Chemistry, Metallurgy

23

F

31/49

C23F 11/14 (2006.01) B05D 7/14 (2006.01) C09K 15/20 (2006.01)

Patent

CA 1300868

3-16073/= Corrosion inhibitor Abstract Corrosion inhibitors comprising a) an imidazoline of the formula I Image (I) in which R1 is hydrogen, C1-C6-hydroxyalkyl, C1-C6-amino- alkyl or C2-C19-carboxyalkyl or an ammonium or amine salt thereof and R2 is hydrogen, C1-C17-alkyl or C2-C17- alkenyl, b) a heterocyclic polyacid of the formula II Image (II) in which R3 is C2-C6-carboxyalkyl or an alkali metal, alkaline earth metal, ammonium or amine salt thereof, c) at least one alkanolamine of the formula III Image (III) in which R4 is C1-C6-hydroxyalkyl and R5 and R6, which can be identical or different, are hydrogen, C1-C6-alkyl or C1-C6-hydroxyalkyl, and d) water are outstandingly suitable for the corrosion-inhibiting treat- ment of shaped iron and steel parts.

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