摘要:
The invention relates to industrial gear oil compositions that have been specially designed to have improved friction and/or antiwear properties. That is the industrial gear oil compositions of the invention provide good performance and/or protection in the areas of friction and/or antiwear due to the use of a synergistic combination of additives. The industrial gear oil compositions of the invention utilize a combination of certain phosphorus-containing compounds and derivatives of a hydroxy-carboxylic acid, to provide a synergistic improvement in friction and/or antiwear properties.
摘要:
The invention relates to a lubricating composition containing (a) an N-substituted malimide, and (b) an oil of lubricating viscosity. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
摘要:
An object of the present invention is to provide an oil soluble compound and a lubricating composition and method of using the same in a differential. The compound can be of formula R'N((CH 2 ) 2 CONHR") 2 , wherein R' can be H or a C 8-28 hydrocarbyl group wherein up to 4 carbon atoms in the hydrocarbyl group may optionally be replaced by nitrogen or oxygen atoms, and R" can be H or a C 8-28 hydrocarbyl group. The invention further provides a method of producing an oil soluble compound suitable for limited slip performance. The method comprises preparing a Michael adduct from an acrylate and an alkylamine of formula R'NH 2 , followed by subjecting the Michael adduct to an amidation reaction with a further alkylamine of formula R"NH 2 .
摘要:
The invention relates to a lubricating composition comprising (a) a compound derived from a hydroxy-carboxylic acid, and (b) an oil of lubricating viscosity. The invention further provides for the use of the lubricating composition for lubricating a limited slip differential.
摘要:
The present technology includes an extreme pressure additive package formulated with a biodegradable sulfur component, which additive package can achieve suitable extreme pressure performance when formulated into a fully formulated industrial gear oil lubricant.