Lubricant additive compositions

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C - Chemistry, Metallurgy

07

F

C07F 5/02 (2006.01) C07F 9/572 (2006.01) C08F 8/00 (2006.01) C10M 133/52 (2006.01) C10M 133/56 (2006.01) C10M 155/04 (2006.01) C10M 159/12 (2006.01) C10M 159/16 (2006.01) C10M 177/00 (2006.01)

Patent

CA 2148975

Multifunctional additives having a variety of advantageous properties are described. They are formed by a process which comprises heating concurrently or in any sequence a) an oil-soluble ashless dispersant containing basic nitrogen with b) an alkoxylated alcohol and c) a borating agent in proportions on an active ingredient basis of about 0.03 to about 0.35 part by weight of b) per part by weight of a) and about 0.005 to about 0.06 part by weight of boron as c) per part by weight of a) to a temperature in the range of about 50 to about 150°C, and if water and/or solids are present in the resultant mixture, removing both of them or whichever of them is present in the resultant mixture. Preferably, another component is used in the formation of these additives, this component being an inorganic oxy acid or anhydride phosphorus used in proportions on an active ingredient basis of about 0.0005 to about 0.03 part by weight of phosphorus as the component per part by weight of a).

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