2-propanol derivatives as corrosion inhibitors

Abstract From the Canadian patent

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), (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 …