| abstract |
PURPOSE: To suppress the corrosion of an iron metal in contact with a water system without adversely affecting environment,. by adding a specified ether acid compd., which is active as a corrosion inhibitor, to a function liquid. n CONSTITUTION: The compd. expressed by the formula is incorporated at about 0.0001 to 5wt.% as the corrosion inhibitor into the function liquid of an oil base, etc. In the formula, R 1 denotes a linear or branched 4 to 20C alkyl group, phenyl group, etc., R 2 denotes a linear or branched 1 to 12C alkyl group, phenyl group, etc., X denotes CH 2 , O or S, Y denotes O or S, Z denotes -(CH 2 ) n -, etc. The salt or ester of this compd. is otherwise used. The compd. includes, for example, 2-(1-methoxymethylundecyloxy)acetic acid, 2-carboxylmethyl-1-isooctyl-3- methyglycerol, etc. This compd. is applied to metal working fluid, engine cooling systems, transformer oils, etc. n COPYRIGHT: (C)1990,JPO |