C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 137/10 (2006.01) C07F 9/09 (2006.01) C07F 9/165 (2006.01) C10M 135/34 (2006.01) C10M 141/10 (2006.01) C10M 159/20 (2006.01) C10M 159/22 (2006.01) C10M 163/00 (2006.01)
Patent
CA 2077890
2077890 9212225 PCTABS00014 Trithiane and phosphorus and/or thiophosphorus acid derivatives are described which are useful as extreme pressure compositions. The composition comprises a lubricating base oil having dissolved therein a reaction product obtained by reacting (A) an aldehyde of structure (a) wherein R is a hydrocarbyl group containing from 1 to about 18 carbon atoms with (B) a phosphorus acid of structure (b) wherein R2 and R3 are each independently a hydrocarbyl group containing from 1 to about 30 carbon atoms, X1 and X2 are each independently oxygen or sulfur and n is independently zero or one. A neutralizing agent, component (C), may be reacted with the phosphorus acid and/or thiophosphorus acid intermediate formed by the reaction of components (A) and (B).
Ridout & Maybee Llp
The Lubrizol Corporation
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