Compositions – Electrolytes for electrical devices
Patent
1989-05-17
1991-06-18
Medley, Margaret B.
Compositions
Electrolytes for electrical devices
252 33, 252 332, 252 334, 252 39, 568716, 568780, C10M12900, C10M13500
Patent
active
050247735
ABSTRACT:
The present invention is directed toward a method for preparing Group II metal overbased sulfurized alkylphenols. In particular, the present invention employs a sulfurization catalyst in the preparation of Group II metal overbased sulfurized alkylphenols. Use of a sulfurization catalyst in this preparation results in a product generally characterized as having lower crude sediment, a higher Total Base Number and lower viscosity than a similar product prepared without using a sulfurization catalyst.
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Caroli C. J.
Chevron Research Company
Gaffney R. C.
Medley Margaret B.
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