POLYFLUORIDE COMPOUNDS, THEIR PREPARATION AND USE AS LUBRICANT ADDITIVES

摘要

ABSTRACT OF THE DISCLOSURE: The invention relates to new polyfluorinated compounds useful as anti-wear additives for lubricants. These compounds have the general formula: wherein RF is a perfluorinated radical, X represents a divalent linkage - (CH2CF2) a (It H2) b, -CF = CH-CH2- or -CFH-CH2CH2-, a is an integer ranging from 0 to 10 b is an integer from 1 to 4 but equal to 2 if a is zero, R1 represents a hydrogen atom or an alkyl radical, R2 represents a hydrogen atom or a methyl radical and R3 represents a alkyl. They are prepared by condensing an amino alcohol of formula RF-X-NH-CH 2 CH (R1) OH with an alkyl ester of unsaturated carboxylic acid of formula CH2 = C (R2) -COOR3.