摘要:
A solution process is disclosed for preparing a solubilized metal salt ester by reacting an ester compound, such as 2,2'-thiodiethyl-bis (octadecenyl) succinate ester, with a metal carboxylate, such as calcium acetate, in the process of a mixture of (a) a first co-solvent and/or third co-solvent, such as toluene and/or dodecylbenzene respectively, and (b) a second co-solvent such as methanol, to form the metal salt ester product and an effluent mixture of an acid, such as acetic acid, optional co-solvent first, and second co-solvent, followed by the optional addition of a third co-solvent, and vacuum distilling the resulting mixture to remove the effluent mixture to produce a solution of the product and third co-solvent.
摘要:
A phosphorous- and sulfur-containing additive and its use to impart anti-wear properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmission fluids, is disclosed. The additive comprises a mixture of products formed, for example, by simultaneously reacting (1) a beta-hydroxy thioether, such as thiobisethanol, (2) a phosphorous-containing reactant, such as triethyl phosphite and (3) optionally, a nucleophilic reactant capable of reacting with the episulfonium cation ##STR1## to form thioether species.
摘要:
There are disclosed mineral or synthetic oil functional fluids which are suppressed in their tendency to form H.sub.2 S at elevated temperatures by use of an additive of the formula ##STR1## wherein X is .dbd.O or H.sub.2, R is alkyl and M is a metal such as zinc. The invention is especially useful in automatic transmission fluid compositions.
摘要:
There are disclosed power shaft transmission fluids such as automatic transmission fluids containing a multifunctional anti-oxidant, anti-corrosion and friction modification additive being an oil soluble aliphatic succinate ester of alkoxylated mercaptan.
摘要:
A phosphorous- and sulfur-containing additive and its use to impart anti-wear and/or antioxidant properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmission fluids, is disclosed. The additive comprises a mixture of products formed by simultaneously reacting (1) a beta-hydroxy thioether, such as thiobisethanol, and (2) a phosphorous-containing reactant, such as tributyl phosphite. The reaction is carried out under reduced pressure conditions (e.g., -40 KPa to -100 KPa) to limit the amount of thioether species in said additive to less than about 45 mole %.
摘要:
The present invention provides certain metal (e.g., Ca or Mg) ester salt derivatives capable of exhibiting friction modification, oxidation inhibition, and corrosion inhibition properties in power transmitting fluids such as automatic transmission fluids. These salts are derived from mono or diesters prepared by the reaction of an alkanol (e.g., thio-bis-ethanol) and a hydrocarbon substituted succinic acid or anhydride, such as octadecenyl succinic anhydride.
摘要:
A phosphorous- and sulfur-containing additive and its use to impart anti-wear properties to oleaginous compositions such as fuels and lubricating oils, particularly power transmission compositions, such as automatic transmission fluids, is disclosed. The additive comprises a mixture of products formed, for example, by simultaneously reacting (1) a beta-hydroxy thioether, such as thiobisethanol, (2) a phosphorous-containing reactant, such as triethyl phosphite and (3) optionally, a nucleophilic reactant capable of reacting with the episulfonium cation ##STR1## to form thioether species.
摘要:
The present invention provides substantially saturated, e.g., hydrogenated, phospholipid compounds, such as hydrogenated lecithin, which are useful as friction modifying agents for oleaginous compositions such as fuels, and lubricating oils, particularly automatic transmission fluids. The present invention also provides oleaginous compositions containing such phospholipid compounds, and processes for preparing the hydrogenated phospholipids, such as hydrogenated lecithin, and the compositions in which they are contained.
摘要:
Oleaginous compositions comprising a fuel oil or a lubricating oil, a friction modifying amount of a hydroxy ether amine compound such as that having the formula: ##STR1## where X is O or S, R.sub.3 is H, R.sub.1 is C.sub.18 alkylene, R.sub.2 is C.sub.3 alkylene, and R.sub.4 and R.sub.5 are C.sub.2 alkylene, and, optionally an amount effective to impart anti-wear properties to the composition of an organic phosphite ester, such as triphenyl phosphite, are disclosed.
摘要:
Mineral oil based power transmitting fluids, such as automatic transmission fluids, are disclosed which contain 0.05 to 2.0 weight percent of an ester of a thio-bis alkanol and a C.sub.12 -C.sub.50 hydrocarbon succinic acid or anhydride, the ester being a multifunctional additive providing the properties of friction modification, corrosion inhibition, anti-wear, oxidation inhibition and extreme pressure properties to the fluids.