Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.

Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.

Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.

Abstract: Antioxidant additives for lubricating oils are prepared by reacting an acidic molybdenum compound or salt thereof and a basic nitrogen compound where the temperature of the process does not exceed 120° C., resulting in a product color that is light in intensity.

Abstract: A process for preparation of alkylated diphenylamine antioxidant which comprises alkylating diphenylamine with a polyisobutylene in the presence of a clay catalyst, wherein the polyisobutylene has an average molecular weight in the range of 120 to 600 and wherein the polyisobutylene contains at least 25% methylvinylidene isomer.

Abstract: A succinimide composition is prepared by reacting a mixture of a polyalkenyl derivative, an unsaturated acidic reagent copolymer, and a polyamine under reactive conditions. The polyalkenyl derivative is produced by reacting an unsaturated acidic reagent with a polyalkene in the presence of a strong acid. The unsaturated acidic reagent copolymer is a copolymer of an unsaturated acidic reagent and an olefin.

Abstract: Borated alkyl catechols can be stabilized by the addition of certain defined dialkylamines.Lubricating oils containing a borated alkyl catecholdialkylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: A process for alkylating an aromatic polyol, such as catechol, with an alpha olefin oligomer of alpha olefins having from about 8 to 14 carbon atoms or mixtures thereof using an organic sulfonic acid catalyst which is soluble under the alkylation reaction conditions. The liquid alkyl aromatic polyol product is useful as a lubricating oil additive or lubricating oil base stock.

Abstract: Borated alkyl catechols having a 3:2 mole ratio of catechol to boron can be stabilized by the addition of certain defined trialkylamines. Lubricating oils containing a 3:2 borated alkyl catechol-trialkylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: Borated alkyl catechols having a 3:2 mole ratio of alkyl catechol to boron can be stabilized by the addition of certain defined trialkylamines.Lubricating oils containing a 3:2 borated alkyl catechol-trialkylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: Borated alkyl catechols can be stabilized by the addition of certain defined monoalkylamines.Lubricating oils containing a borated alkyl catechol-monoalkylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: Lubricating oils containing a borated alkyl catechol-dialkylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: Borated alkyl catechols can be stabilized by the addition of certain defined monoalkylamines.Lubricating oils containing a borated alkyl catecholmonoalkylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: A method of preparing a borated alkylcatechol by first reacting catechol with boric acid and thereafter alkylating with an olefin.

Abstract: Lubricating oils containing a borated alkyl catechol-diethylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: Borated alkyl catechols can be stabilized by the addition of diethylamine.Lubricating oils containing a borated alkyl catecholdiethylamine complex are effective in reducing oxidation, wear and deposits in an internal combustion engine.

Abstract: A process for the production of tetra- and trialkylsilanes which comprises reacting(A) an alkylchlorosilane having the formulaR.sub.x SiCl.sub.(4-x)wherein R is an alkyl radical containing from one to three carbon atoms per molecule and x is an integer from 0 to 3, with(B) a trialkylaluminum compound having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and represent alkyl radicals containing from 6 to 20 carbon atoms per molecule, in a reaction zone, said reaction being conducted under hydrosilylation conditions. Selectivity to tetra- or trialkylsilanes, respectively, is controlled by the addition of particular alkaline metal salts to the reaction zone.

Abstract: Tetraalkylsilane compounds are produced by contacting an admixture comprising(A) at least one alkylsilane selected from the group consisting of(i) a monoalkylsilane having the formulaR--Si--H.sub.3,(ii) a dialkylsilane having the formulaR--SiH.sub.2 --R.sub.1,(iii) a trialkylsilane having the formulaR--SiH--(R.sub.1).sub.2,and mixtures thereof, wherein R and R.sub.1 each represent an alkyl radical of from one to 20 carbon atoms per molecule, and(B) at least one alpha olefin containing from two to about 20 carbon atoms per molecule, under an inert atmosphere with an oxygenated, platinum-containing catalyst in which the platinum catalyst is selected from the group consisting of (i) a platinum catalyst having a basicity substantially equal to or less than that provided by a platinum-containing catalyst having a triphenylphosphine ligand, or (ii) a heterogeneous platinum-containing catalyst, under hydrosilylation conditions.

Abstract: The silahydrocarbon product containing at least 75 weight percent of saturated silahydrocarbons with the remainder being unsaturated silahydrocarbons is produced by a process in which admixture comprising(A) at least one alpha-olefin containing from 2 to about 20 carbon atoms per molecule, and(B) at least one alkylsilane selected from the group consisting of(i) a dialkylsilane having the formulaR--SiH.sub.2 --R.sub.1(ii) a trialkylsilane having the formula ##STR1## and (iii) mixtures thereof,wherein R and R.sub.1, the same or different, each represent an alkyl radical of from one to 20 carbon atoms per molecule with a catalyst comprising a homogeneous rhodium-containing catalyst or a heterogeneous rhodium-containing catalyst in a halogen-free inert solvent, under hydrosilylation reaction conditions to produce a mixture containing saturated and unsaturated silane hydrocarbons useful as lubricants.

Abstract: A novel ether solution of dinitrobenzophenone and a process for preparing an ether solution of diaminobenzophenone therefrom which comprises subjecting a dinitrobenzophenone dissolved in said ether solvent to hydrogenation in contact with a continuous nickel catalyst to obtain said solution of diaminobenzophenone dissolved in said ether solvent. In a specific embodiment said nickel catalyst is mounted on an inert support. In a still further embodiment, said diaminobenzophenone dissolved in said ether solvent, after removal of water therefrom, is reacted with an aromatic dianhydride to obtain a polyamic acid solution. The polyamic acid solution can be heated at a temperature above 100.degree. C. to drive off water of cyclization and thereby obtain the corresponding polyimide resin.