Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1973-07-23
1976-08-03
Sneed, Helen M. S.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
252 32, 252 45, 252 482, 252 498, 252 50, 252 515H, 252 52R, 252 56R, 252 58, 260348A, 2604292, 260455R, 260456R, 260457, 260478, 260526R, 260544R, 260561R, 260561H, 260566F, 260583R, 260593R, 260609R, 260614R, 260632R, 260652R, 260963, 260967, F16h 1508
Patent
active
039722430
ABSTRACT:
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.
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Rounds, J. Chem. and Eng. data, vol. 5, No. 4, pp. 499 to 507, (1960).
Driscoll Gary L.
Haseltine, Jr. Marcus W.
Hess J. Edward
Johnson Donald R.
Maloney Richard P.
Sneed Helen M. S.
Sun Research and Development Co.
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