Solid anti-friction devices – materials therefor – lubricant or se – Lubricants or separants for moving solid surfaces and...
Patent
1998-08-04
1999-12-28
Johnson, Jerry D.
Solid anti-friction devices, materials therefor, lubricant or se
Lubricants or separants for moving solid surfaces and...
208 18, 208 24, 208 95, 208308, 585253, 585738, C10M10102, C10G 7344, C07C 513
Patent
active
060081643
ABSTRACT:
The instant invention is directed to a method for producing a lubricating base stock having a preselected oxidative stability comprising the steps of: (a) separating, into a plurality of fractions based on molecular shape, a hydroisomerized hydrocarbon wax, (b) collecting the fractions of step (a) which have the preselected oxidative stability for use as a lubricating base stock, wherein the fractions to be collected are determined by measuring the oxidative stability of each of said fractions of said plurality of fractions to determine which fractions have said preselected oxidative stability. The invention is also directed to an improved lubricating base oil and a formulated lubricating composition using said lubricating base oil.
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Aldrich Haven Scott
Wittenbrink Robert Jay
Bakun Estelle C.
Exxon Research and Engineering Company
Johnson Jerry D.
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