C - Chemistry – Metallurgy – 10 – M
Patent
C - Chemistry, Metallurgy
10
M
C10M 109/02 (2006.01) C08K 5/00 (2006.01) C09D 5/04 (2006.01) C10M 103/06 (2006.01) C10M 105/38 (2006.01) C10M 159/20 (2006.01)
Patent
CA 2102098
A metal overbased composition is disclosed that comprises (A) at least one natural oil comprising an animal oil or veg- etable oil comprising a triglyoeride of formula (1) wherein R1, R2 and R3 are independently saturated or unsaturated aliphatic hydrocarbyl groups containing from about 8 to about 24 carbon atoms and (B) a metal base oxide (MO), hydroxide (MOH) or alkoaida (R4OM) wherein the motel comprises an alkali or alkaline earth and R4 is a hydrocarbyl group containing from about 1 to about 24 carbon atoms, and wherein the equivalent ratio of (A):(B) is from 0.90-10:1 to form a saponified inter- mediate, adding 2-11 equivalents of (B) per equivalent of formed saponified intermediate and reacting excess (B) with (C) an acidic gas comprising carbon dioxide, sulfur dioxide or sulfur trioxide. This composition may also be gelled to produce a rheology control agent.
Barrer Daniel E.
Nichols Willis P.
Quinn Robert E.
Schroeck Calvin W.
Ridout & Maybee Llp
The Lubrizol Corporation
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