Abstract: Lubricating oil compositions having improved viscosity properties, such as viscosity index, are produced by combining with a lubricant a viscosity index-improving amount of an atactic polymer of C.sub.5 -C.sub.22 alpha-olefins prepared by polymerizing at least one C.sub.5 -C.sub.22 alpha-olefin monomer in the presence of a highly active olefin-polymerization catalyst. Also disclosed is a process for the preparation of the atactic polymers, which can be homopolymers of copolymers of C.sub.5 -C.sub.22 alpha olefins.

Abstract: A process for making an organicammonium dialkyl phosphorodithioate has been discovered which involves a critical order of reactant addition. Thus it is essential to the process that the amine be added to a mixture of phosphonate and elemental sulfur.

Abstract: A copper (1) dihydrocarbyl phosphordithioate is made by a method comprising reacting a bis(dihydrocarbyl phosphorothionyl) disulfide with activated copper metal.

Abstract: A lubricant additive produced by reacting an alcohol and a maleic anhydride-olefin copolymer reduces low temperature micro-crystalline wax formation in hydrodewaxed based stock.

Abstract: A novel process for reducing Mo(V) or Mo(VI) dialkyldithiophosphates to Mo(IV) dialkyldithiophosphates with H.sub.2 S is provided. Homologues higher than the ethyl compound are oil soluble and novel. Lubricant compositions containing same provide reduced wear and friction.

Abstract: An intaglio ink composition and method of using the same for printing by the intaglio process are disclosed. The composition comprises a pigment, a vehicle composed basically of a resin and solvent, and a small amount, e.g., 0.005 to 0.5 wt.%, of an antioxidant composition consisting of a mixture of phenolic and amine antioxidants. The antioxidant composition serves to reduce the tendency of gravure ink formulations to streak during the printing process. A preferred gravure ink formulation contains a small amount of an antioxidant composition consisting of a mixture of 2,6-di-tert-butyl-4-methylphenol and 4,4'-bis(1,1,3,3-tetramethylbutylphenyl)amine.

Abstract: The invention provides a molybdate compound that is useful in lubricants, especially hydrocarbyl lubricating oils, to reduce friction and to decrease fuel consumption in internal combustion engines.

Abstract: Lubricant compositions are provided containing antiwear improving amounts of a bis-oxazoline having an alkyl group containing from about 4 to about 24 carbon atoms.

Abstract: Certain new adducts of benzotriazole and oxazolines are provided in which the oxazolines may contain alkyl, alkenyl or cycloalkyl radicals of from 6 to about 20 carbon atoms. Lubricant compositions are also provided having excellent anticorrosion characteristics when minor amounts of such adducts are added thereto.

Abstract: Improved synthesis of boroxarophenanthrenes, comprising the step of adding gaseous BCl.sub.3 to a liquid hydrocarbon slurry of 2-hydroxybiphenyl at a specified temperature. Known methods involve the reaction of BCl.sub.3 with the phenol at -70.degree. C., the reaction being carried out in methylene chloride.

Abstract: The invention provides a phosphomolybdate compound that is useful in lubricants, especially lubricating oils, to reduce friction and to decrease fuel consumption in internal combustion engines. The phosphomolybdates are new compounds obtained at or near room temperature.

Abstract: Certain new adducts of benzotriazole and dialkylamines, the alkyl groups of which contain from 4 to 20 carbon atoms, are provided. Lubricant compositions having excellent anticorrosion characteristics are also provided when minor amounts of such adducts are added thereto.

Abstract: A process is provided for improving the stability of a hydrocarbon mineral oil, particularly a hydrocracked stock, normally susceptible to thermal oxidation and the effect of light rays and for decreasing the tendency of the oil to form sludge material. The process involves reacting the hydrocarbon mineral oil before or after conventional treatment, such as dewaxing operations, with a stabilizing agent, such as an olefin, alcohol, ester or alkyl halide in the presence of a heterogeneous acidic catalyst which includes acid resins, clays and aluminosilicates, and which has a controlled alkylation activity. The final oil product has improved light stability over a conventionally treated oil.

Abstract: Novel oil-soluble compounds and lubricating compositions containing them are provided containing an antiwear or antioxidant improving amount of a solubilized borate of a bis-oxazoline resulting from reaction of an alkyloxazoline, boric acid and a substituted phenol.

Abstract: Aryl phosphonates of high purity, prepared by heating the corresponding aryl di-t-alkyl phosphite in the presence of a heterogeneous acidic reticular resin catalyst, are incorporated into various lubricant compositions to provide such compositions with improved antiwear properties.

Abstract: Compositions of improved antioxidant characteristics are provided comprising organic media, normally susceptible to oxidation, e.g., oils of lubricant viscosity and greases prepared therefrom containing a minor amount sufficient to impart antioxidant properties thereto of an admixture of a polydisulfide having at least one unit therein with the following structure: ##STR1## WHERE N IS FROM 2 TO ABOUT 20 AND R and R.sub.1 are hydrogen or C.sub.1 -C.sub.10 alkyl; and a compound selected from the group consisting of arylamines and hindered phenols.

Abstract: Aryl phosphonates of high purity, prepared by heating the corresponding aryl di-t-alkyl phosphite in the presence of a heterogeneous acidic reticular resin catalyst, are incorporated into various lubricant compositions to provide such compositions with improved antiwear properties.

Abstract: An improved process for preparing a stabilized lubricating oil resistant to oxidation and sludge formation upon exposure to a highly oxidative environment, such as when metals are present and an overbased component is present in the lubricating oil, is provided. In the present process wherein a lubricating oil stock to be upgraded is contacted with elemental sulfur in the presence of a catalyst material selected from the group consisting of alumina, aluminosilicate, a metal of Groups II-A, II-B, VI-B or VIII of the Periodic Table of Elements, an oxide of a metal of Groups II-A, II-B, VI-B or VIII, a sulfide of a metal of Groups II-A, II-B, VI-B or VIII, clay, silica, silica combined with an oxide of a metal of Groups II-A, III-A, IV-B or V-B, and combinations thereof, at relatively low temperatures of from about 150.degree. to about 225.degree.

Abstract: Lubricant compositions are provided, comprising oils of lubricating viscosity, and greases prepared therefrom, containing a minor antiwear improving amount of an alkyl beta-thiopropionic acid ester.

Abstract: A method is provided for reactivation of color removal activity of hydrofinishing catalyst which comprises contacting aged hydrofinishing catalyst exhibiting degraded color removal activity with a small amount of added elemental sulfur dissolved in hydrocarbon oil under mild contact conditions for a time sufficient to reactivate the color removal activity of the catalyst.