|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||252/51 ; 564/355 ; 564/366 ; 564/462|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 9 인용 특허 : 3|
In order to improve the wear resistance properties of lubricants, at least one compound of the following formula is incorporated therein: [Figure] (I) Rf is a perfluorinated radical, a=0 to 10, b=0 or 1 (if a=o and c=1), c=1 to 4 (2 if a≠0), m=0 or 1, n=0 or 1, X is an aryl radical, Y is a 2-hydroxy-1-phenylethyl group, R1 and R′1 each represent a hydrogen atom or an alkyl, cycloalkyl or aryl radical, R2 and R′2 each represent a hydrogen atom or an acyl residue, at least one of the symbols R1 and R2 being other than H or CH3 if the sum a+m+n=0.
Lubricating oils comprising from 0.01 to 0.5% by weight of at least one polyfluorinated compound of the general formula: [Figure] (I) in which: Rf denotes a perfluorinated radical, a is an integer ranging from 0 to 10, b is equal to 0 or 1, but can be equal to 1 only if simultaneously, a is equal to 0 and c is equal to 2, c is an integer ranging from 1 to 4, but is equal to 2 when a is other than 0, m and n are equal to 0 or 1, X represents an optionally substituted aryl radical, Y represents the 2-hydroxy-1-phenylethyl group, R1 and R′1, which may b...