摘要:
The invention provides a method of lubricating an internal combustion engine equipped with a centrifugal oil mist separator, wherein the lubricant contains 0.1 wt % to 8 wt % soot resulting from operation of the engine, and wherein the lubricant composition comprises an oil of lubricating viscosity, and 0.2 wt % to 3 wt % of a soot dispersing additive, wherein the soot dispersing additive comprises a polymer chain having a number average molecular weight of 500 to 20,000, and wherein the soot dispersing additive has a shear stability index of 0 to 20.
摘要:
PCT No. PCT/US97/14028 Sec. 371 Date Mar. 23, 1998 Sec. 102(e) Date Mar. 23, 1998 PCT Filed Aug. 8, 1997 PCT Pub. No. WO98/05741 PCT Pub. Date Feb. 12, 1998A process for reacting certain carboxylic reactants with olefinic compounds then reacting the intermediate prepared thereby with ammonia, a hydrazine or an amine, and/or a reactive metal or reactive metal compound, products prepared thereby and, additive concentrates and lubricating oil and fuel compositions.
摘要:
This invention relates to a cold rolling oil additive and an emulsion type cold rolling oil composition. The additive according to the invention is a compound obtainable by reacting at least one member of polyalkylenepolyamines and polyalkyleneimines each containing 3 to 200 N atoms with at least one member of fatty acid compounds, glycidyl ether compounds and epoxy compounds. With this additive, cold rolling oil compositions having excellent lubricating and stable circulation characteristics can be easily obtained.
摘要:
An oil soluble dispersant comprising the reaction products of:
(1) oil soluble salts, amides, imides, oxazolines, esters, or mixtures thereof of long chain hydrocarbyl substituted mono- and dicarboxylic acids or their anhydrides, (ii) long chain hydrocarbon having a polyamine attached directly thereto, and (iii) Mannich condensation product formed by condensing a long chain hydrocarbyl substituted hydroxy aromatic compound with an aldehyde and a polyalkylene polyamine, said adduct containing at least one reactive group selected from reactive amino groups and reactive hydroxyl groups; and (2) at least one polyepoxide.
摘要:
Properties of paraffinic or naphthenic mineral oil lubricants may be improved by admixing therewith a polyalkylene oxide compound having a C 2 -C 4 alkylene oxide moiety and a C 6 -C 40 alkylene oxide moiety.
摘要:
Properties of paraffinic or naphthenic mineral oil lubricants may be improved by admixing therewith a polyalkylene oxide compound having a C 2 -C 4 alkylene oxide moiety and a C 6 -C 40 alkylene oxide moiety.