摘要:
Methylol polyester derivatives of C.sub.12 -C.sub.22 hydrocarbon substituted succinic anhydride or acid which are the equimolar reaction products of said C.sub.12 -C.sub.22 hydrocarbon substituted succinic anhydride or acid and a cyclic poly(methylol) compound provide activity: in fuels as rust inhibitors; in automatic transmission fluids as copper corrosion inhibitors; and, in automotive, industrial and lubricating oils as sludge dispersants, rust-inhibitors, friction reducers (lubricity agents) and copper alloy corrosion inhibitors.
摘要:
Borated derivatives of: (a) hydrocarbyl substituted mono- and bis-oxazolines obtained as a reaction product of hydrocarbyl substituted dicarboxylic acid, ester, or anhydride, for example, polyisobutenylsuccinic anhydride with from 1 to 2 molar equivalents of a 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethylamino)methane (THAM); and, (b) lactone oxazolines obtained as a reaction product of hydrocarbyl substituted lactone carboxylic acids, for example, polybutyl lactone carboxylic acid, with 2,2-disubstituted-2-amino-1-alkanols, such as tris-(hydroxymethyl)aminomethane (THAM), and their derivatives are useful additives in lubricating oils since both the sludge dispersant and/or varnish inhibiting properties of said oil are enhanced.
摘要:
Lubricating oil compositions which contain polycarboxylic acid-glycol esters as friction modifiers in combination with hydrocarbon soluble borated or non-borated alkenyl succinimide dispersant and especially those also containing metal additives are stabilized against tendency of such components to form sediment upon storage through addition of small proportions of a co-dispersant being an oil-soluble hydrocarbyl substituted mono or bis-oxazoline or lactone oxazoline.
摘要:
A lubricating oil composition having improved friction reducing properties and the method of reducing friction in internal combustion engines by lubricating said engines with said lubricating oil which contains an effective friction reducing amount of an additive which is the reaction product of dimer carboxylic acid and a polyhydric alcohol having at least 2 hydroxyl groups in combination with an oil soluble alkanol or an oil soluble alkyl phosphate.
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:
A mutually compatible combination of additives and their use to impart anti-wear, oxidation inhibition and friction modification to power transmission compositions, particularly automatic transmission fluids, is disclosed. The additives comprise an organic phosphite ester such as triphenyl phosphite and a hydroxyl amine compound, such as that having the formula ##STR1## preferably in combination with a dispersant such as a polyisobutenyl succinimide or a borated derivative thereof.
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:
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:
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.