Process for producing low temperature high performance grease

Details Process for producing low temperature high performance grease Process for producing low temperature high performance grease

1988-02-29

1989-11-07

Dixon, Jr., William R.

Compositions

Electrolytes for electrical devices

252 56S, C10M11102

Patent

active

048790540

ABSTRACT:
A method is provided for manufacturing a grease that exhibits high performance qualities at extremely cold temperatures and moderately elevated temperatures, as well as under normal operating conditions. In the method, a lithium soap thickener is formed in, heated, and mixed with polyalphaolefin. Upon cooling, a diester oil is blended with the polyalphaolefin and lighium soap thickener. Subsequently, extreme pressure antiwear additives and oxidation and corrosion inhibitors are added to the grease. Special hydroxides can also be intermittently added to enhance the performance of the grease under extreme temperatures as well as to minimize oil bleeding and transesterification.

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patent: 3860522 (1975-01-01), Fischer et al.
patent: 4749502 (1988-06-01), Alexander et al.

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