The invention relates to a seal swell agent which is a substituted sulfonyldibenzene compound, and lubricating compositions containing the seal swell agent. The substituents on the benzene rings may be hydrocarbyl groups of 4 to 20 carbon atoms or alkylene groups of 1-2 carbon atoms with further functional groups.
Gel additives for fuel that reduce soot and/or emissions from engines
申请人:The Lubrizol Corporation
公开号:EP2243816A1
公开(公告)日:2010-10-27
The invention relates to using a gel as an additive for fuel in a fuel system for decreasing the amount of soot in the lubricating oil of an engine and/or decreasing the emissions from an engine.
本发明涉及在燃料系统中使用凝胶作为燃料添加剂,以减少发动机润滑油中的烟尘量和/或减少发动机的排放。
Star polymer and lubricating composition thereof
申请人:The Lubrizol Corporation
公开号:EP2610332A1
公开(公告)日:2013-07-03
The present invention relates to a lubricating composition containing an oil of lubricating viscosity and a star polymer that has at least two inner blocks, at least one of which is in turn bonded to one or more outer blocks. The invention further relates to methods of lubricating a mechanical device with the lubricating composition.
Functionalised copolymers and lubricating compositions thereof
申请人:The Lubrizol Corporation
公开号:EP2669356A1
公开(公告)日:2013-12-04
The present invention relates to a lubricating composition comprising an oil of lubricating viscosity and a (thio)phosphate salt of an amine-functionalized esterified copolymer, wherein the esterified copolymer comprises units derived from monomers: (i) an α-olefin and (ii) an ethylenically unsaturated carboxylic acid or derivatives thereof, that are esterified with an alcohol, or mixtures thereof, and wherein at least a portion of carboxylic acid groups not esterified react with an amine. The invention further provides for a lubricating composition containing said copolymer. The invention further provides a method and use of lubricating composition in a mechanical device.
本发明涉及一种润滑组合物,该组合物包含具有润滑粘度的油和胺官能化酯化共聚物的(硫代)磷酸酯盐,其中酯化共聚物包含衍生自单体的单元:(i) α-烯烃和 (ii) 乙烯基不饱和羧酸或其衍生物,这些单体与醇或其混合物酯化,其中至少一部分未酯化的羧酸基团与胺反应。本发明进一步提供了一种含有所述共聚物的润滑组合物。本发明进一步提供了一种润滑组合物在机械装置中的使用方法和用途。