| abstract |
PURPOSE: To obtain a compsn. excellent in oxidation preventing effect by adding a small amt. of a specified compd. to natural or processed oil. n CONSTITUTION: Natural or processed oil is blended with a small amt. of a compd. represented by the formula (where R is a 1-5C alkyl and X is a substituent other than H and preventing the dimerization of the compd. at the time of oxidation), preferably 6-ethoxy2,2,4,8-tetramethyl-1,2-dihydroquinoline or 6,8- diethoxy2,2,4-trimethyl-1,2-dihydroquinoline to obtain the objective compsn. The oxidation preventing effect of the compd. is not lower than that of a compd. having H as X in the formula. n COPYRIGHT: (C)1990,JPO |