Salicyclic calixarenes and their use as lubricant additives

Details Salicyclic calixarenes and their use as lubricant additives Salicyclic calixarenes and their use as lubricant additives

C - Chemistry, Metallurgy

07

C

C07C 65/17 (2006.01) C07C 69/00 (2006.01) C07C 69/94 (2006.01) C10L 1/14 (2006.01) C10L 1/18 (2006.01) C10L 1/198 (2006.01) C10L 1/24 (2006.01) C10L 10/00 (2006.01) C10M 129/54 (2006.01) C10M 129/76 (2006.01) C10M 145/18 (2006.01) C10M 159/12 (2006.01) C10M 159/22 (2006.01) C10M 165/00 (2006.01) C10L 1/16 (2006.01) C10L 1/22 (2006.01)

Patent

CA 2277469

This invention relates to a cyclic compound comprising m units of formula (Ia) and n units of formula (Ib) joined together to form a ring, wherein each Y is a divalent bridging group which may be the same or different in each unit; R0 is H or an alkyl group of 1 to 6 carbon atoms; R5 is H or an alkyl group of 1 to 60 carbon atoms; j is 1 or 2; R3 is hydrogen, a hydrocarbyl or a hetero-substituted hydrocarbyl group; either R1 is hydroxy and R2 and R4 are independently either hydrogen, hydrocarbyl or hetero-substituted hydrocarbyl, or R2 and R4 are hydroxyl and R1 is either hydrogen, hydrocarbyl or hetero- substituted hydrocarbyl; m is from 1 to 8; n is at least 3, and m + n is 4 to 20. This invention also relates to metal salts of the foregoing compound, especially overbased metal salts. The invention also relates to additive compositions, finished lubricating oil compositions and fuel compositions containing the foregoing compound or metal salt thereof. The invention also relates to a process for making the foregoing compound and salts thereof.

L'invention concerne un composé cyclique comprenant m unités de formule (Ia) et n unités de formule (Ib) réunies pour former un cycle, formules dans lesquelles chaque Y représente un groupe de pontage bivalent qui peut être identique ou différent dans chaque unité; R<0> représente H ou un groupe alkyle de 1 à 6 atomes de carbone; R<5> représente H ou un groupe alkyle de 1 à 60 atomes de carbone; j vaut 1 ou 2; R<3> représente hydrogène, un groupe hydrocarbyle ou hydrocarbyle hétéro-substitué; soit R<1> représente hydroxy et R<2> et R<4> représentent séparément hydrogène, hydrocarbyle ou hydrocarbyle hétéro-substitué, soit R<2> et R<4> représentent hydroxyle et R<1> représente hydrogène, hydrocarbyle ou hydrocarbyle hétéro-substitué; m vaut de 1 à 8; n vaut au moins 3, et m + n égale 4 à 20. L'invention porte également sur des sels métalliques dudit composé, notamment des sels métalliques surbasique. Elle se rapporte encore à des compositions d'additif, des compositions lubrifiantes finies et des compositions de carburant contenant ledit composé ou le sel métallique de celui-ci. Pour finir, elle concerne un procédé de production dudit composé et de sels de celui-ci.

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