2-propanol derivatives as corrosion inhibitors

Details 2-propanol derivatives as corrosion inhibitors 2-propanol derivatives as corrosion inhibitors

C - Chemistry, Metallurgy

07

C

31/48, 260/602

C07C 217/64 (2006.01) C09K 15/20 (2006.01) C10M 133/08 (2006.01)

Patent

CA 1282082

Abstract of the Disclosure 2-Propanol derivatives as corrosion inhibitors New composition comprises a functional fluid in contact with ferrous metal and a corrosion inhibiting amount of at least one compound of formula (I) Image (I) or a derivative thereof in which R1, R2 and R3 are, independently, hydrogen, a C1-C15 straight or branched chain alkyl residue, a C5-C12 cycloalkyl residue, a C6-C15 aryl residue or C7-C12 alkaryl residue, and R4 and R5 are, independently, hydrogen, 2-hydroxyethyl or 2-hydroxypropyl with the provisos that a) R4 and R5 are not simultaneously hydrogen, b) when R4 and R5 are each -Ch2-CH2-OH, R1 and R2 are not simulta- neously hydrogen and R3 is not a pentyl residue and c) that polyalkylene phenol or polycarboxylic ester co-additives are absent; as well as salts thereof. Some of the compounds of formula I are new.

540660

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