C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
253/42
C10M 129/44 (2006.01) C10M 129/04 (2006.01) C10M 137/10 (2006.01)
Patent
CA 2001875
The shear stability of a multipurpose grease comprising (i) a lubricating oil, (ii) a lithium soap of an hydroxy fatty acid, (iii) a polyhydric alcohol having at least three hydroxy groups, and (iv) at least two metal hydrocarbylthiophosphate compounds in which the metal is different in at least two compounds, is enhanced by incorporating at least a major portion of the polyhydric alcohol into the mixture of lubricating oil and lithium soap of an hydroxy fatty acid and before the metal hydrocarbylthiophosphate compounds are added during the grease preparation process. Preferred ingredients are 12-hydroxystearic acid, glycerol, antimony dialkyldithiophosphate, and zinc dialkyldithiophosphate.
Alexander Albert G.
O'dell Brown Terrance
Slack David A.
Alexander Albert G.
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
O'dell Brown Terrance
Slack David A.
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