Soot dispersant
AssigneeJinzhou DPF-TH Chemicals Co., Ltd.
InventorsJun Hua, Yantao Zhu, Xiao Wei, Rolfe Hartley, Ricardo Bloch, Yuan Gao
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Abstract
The present invention is directed to a use of a lubricant in a diesel engine to disperse soot produced by the diesel engine, the soot being dispersed without adversely affecting the viscosity of the lubricant; the lubricant comprising a major amount of oil of lubricating viscosity and a minor amount of a dispersant comprising (i) one or more olefin, (ii) one or more carboxylic acid, (iii) one or more polyetheramines and (iv) one or more aromatic amines along with co-additives.
Claims19
A composition used in an internal combustion engine, the composition comprising a major amount of oil of lubricating viscosity and a minor amount of a dispersant comprising (i) an olefin (ii), a carboxylic acid, (iii) a polyetheramine, and (iv) an aromatic amine, wherein the aromatic amine is a phenylene diamine;
- and wherein the dispersant has the formula
- wherein;
- R1 is alkyl, alkenyl, alkoxyl, arylalkyl, alkylaryl, or a mixture thereof having from about 20 to 60 carbon atoms;
- R2 is alkoxyl or polyether;
- R3 is NHaryl (diarylamine);
- R4 is polyolefin;
- X is 1;
- and
- Y is 1.
Dependencies are inferred from the claim text.