Sun Ventures, Inc.

Sun Oil Company of Pennsylvania

Sun Oil Company

Sun Research and Development Co.

Marcus W Haseltine, Jr

Gary L Driscoll

Alexander D Recchuite

Thomas D Newingham

John Q Griffith, Iii

An improved method of lubrication of a controlled-slip differential comprises using a lubricant comprising major amounts of a hydrocarbon base stock and friction improving amounts of synthetic sulfurized oil consisting essentially of a cosulfurized blend of a triglyceride and a C.sub.2 -C.sub.128 monoolefin. The hydrocarbon base stock can have a kinematic viscosity at 210.degree. F. in the range of 1.5 to 200.0 cs. and contain paraffinic (by VGC) petroleum oil or a blend of at least one C.sub.13 -C.sub.29 naphthene and from 0.1 to 20 parts by weight, based on said naphthene of at least one member from at least one of the following groups (a), (b), (c) and (d):

Method of lubrication of a controlled-slip differential

A process for the preparation of a mixture of alkylnaphthalenes useful as a dye solvent for carbonless copy paper by:

Preparation of isopropylnaphthalene mixture

An organo-tin compound, useful as an antiwear additive to fuels or lubricants, is obtained by polymerization of isobutylene in the presence of stannic chloride in a solvent.

Organo tin compound

Novel compositions, useful as additives to lubricants, are produced by reaction of various reagents with novel polyisobutylene oligimers containing at least one pair of maximally crowded geminal methyl groups. For example, ozonolysis of the novel polyisobutylenes can produce oxygenated derivatives (ketones, esters, alcohols, etc.) which are useful as components of traction fluids. One such alcohol is 1,1,3,3,5,5,7,7-octamethyl-1-octanol, which has been identified by its NMR spectrum and that of its complex with Eu(DPM).sub.3. Other novel compounds are 4,4,6,6,8,8-hexamethyl-2-nonanone and 2,2,6,6,8,8-hexamethyl-4-nonanone.

Chemical reaction products of polyisobutylene

Polyolefins, paraffins and polar compounds containing a gem-structured hydrocarbon 'backbone' are useful as traction fluids or as components of traction fluids. For example, compositions, useful as additives to lubricants (e.g., components of traction fluids), are produced by ozonolysis of polyolefins, particularly of polyisobutylene oligomers containing at least one pair of maximally crowded geminal methyl groups to produce gem-structured, oxygenated derivatives (ketones, esters, acids, aldehydes, alcohols, etc.). Other polar compounds, useful as additives to lubricants or other mineral oil products (e.g., rubber process oils) can be obtained by conversion of polyisobutylene oligomers to polar compounds containing such functional groups as amine, imine, thioketone, amide, thioester, phosphate esters of the alcohols, ether, oxime, acyl halide, acyl hydrazide, chloride, bromide and maleic anhydride adducts. Salts of the carboxylic acids can also be useful as lubricant additives. A tin complex can also be made which has antiwear properties. Compositions comprising 0.1 to 100 weight percent of the gem-structured polar compounds and a base oil (e.g., a paraffinic lube, naphthenic lube, a hydrogenated naphthenic or paraffinic lube, polyolefins or hydrogenated polyolefins, synthetic esters and mixtures of such oils) are especially useful as lubricants.

Growing community of inventors

Brookhaven, PA, United States of America

Marcus W Haseltine, Jr