Compositions – Electrolytes for electrical devices
Patent
1974-09-09
1976-06-29
Sneed, Helen M. S.
Compositions
Electrolytes for electrical devices
260125, 260128, C10M 148
Patent
active
039666220
ABSTRACT:
In the method of preparing sulfurized, alkoxylated, inorganic phosphorus acid free, steam hydrolyzed polyalkene-P.sub.2 S.sub.5 reaction product useful as a detergent-dispersant in lubricating oil compositions of improved antioxidant and odor properties comprising contacting polyalkene and P.sub.2 S.sub.5 in the presence of a catalytic amount of sulfur to form the polyalkene-P.sub.2 S.sub.5 reaction product, contacting the resultant polyalkene-P.sub.2 S.sub.5 reaction product with steam to form an inorganic phosphorus acid containing hydrolyzed polyalkene-P.sub.2 S.sub.5 reaction product, removing inorganic phosphorus acid from the hydrolyzed polyalkene-P.sub.2 S.sub.5 reaction product, contacting the inorganic acid free, hydrolyzed polyalkene-P.sub.2 S.sub.5 reaction product with alkylene oxide, the improvement which comprises the step selected from the group consisting of 1). contacting said inorganic acid free, steam hydrolyzed polyalkene-P.sub.2 S.sub.5 intermediate product with added sulfur, and 2). contacting the alkoxylated, inorganic phosphorus acid free, steam hydrolyzed polyalkene-P.sub.2 S.sub.5 reaction product with added sulfur. The invention is also directed to the resultant sulfurized alkoxylated product and lubricant compositions thereof.
REFERENCES:
patent: 2773861 (1956-12-01), Musselman
patent: 3201438 (1965-08-01), Reed
patent: 3272744 (1966-09-01), Schallenberg et al.
patent: 3285853 (1966-11-01), Lacoste
patent: 3389086 (1968-06-01), Reed et al.
Chafetz Harry
Cullen William P.
Hellmuth Walter W.
Kulason Robert A.
Ries C. G.
Sneed Helen M. S.
Texaco Inc.
Whaley T. H.
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