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US 10,370,611 B2Granted
Low ash lubricant and fuel additive comprising alkoxylated amine
AssigneeLANXESS Solutions US Inc.
InventorsRon Muir, John Louis DiFlavio, James-Jianjun Wei
Life of this patent
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Abstract
A lubricating oil detergent composition comprises an overbased calcium sulfonate and a low ash detergent, which low ash detergent is metal free and comprises the reaction product of an acidic organic compound such as an alkylated salicylic acid, a boron compound and an amine component.
Claims12
A lubricant composition comprising:
- at least 70 wt % of an oil of lubricating viscosity based on the weight of the lubricant composition, of an oil of lubricating viscosity and
- a detergent composition for lubricants and fuels, said detergent composition comprising
- an overbased calcium sulfonate having a TBN of about 410 and
- 4 to 7 wt % of a low ash detergent, based on the weight of the combination of overbased calcium sulfonate and low ash detergent,
- wherein the detergent composition contains no phenate, and the low ash detergent is the reaction product of:
- a) one or more alkylated salicylic acids of formula I:
- wherein R1 is selected from the group consisting of dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl and isomers thereof, and ‘a’ is an integer of 1 or 2;
- b) boric acid;
- and
- c) ethoxylated tallow amine
- wherein the low ash detergent has a TBN of from 96 to 115 and contains no metals, phosphorus or sulfur, and the lubricant composition contains no phenate.
8 more elements
Dependencies are inferred from the claim text.