A cleaning agent for lubricating oil with the sufficient low-temperature characteristic, and a manufacturing method for the same

Japanese Patent JP6168774

B2

A carboxylate detergent prepared by the process comprising (a) alkylating a hydroxyaromatic compound with at least one alpha olefin oligomer, derived from C8 to C20 alpha olefins, to thereby produce an alkylhydroxyaromatic compound, and wherein at least 90% of the molecules in the alkylhydroxyaromatic compound have the alkyl group attached at the 4-position or higher from the terminus of the longest chain of the alkyl group, and further wherein the alkyl group comprises at least one hydrocarbon tail of at least 7 carbons; (b) neutralizing the resulting alkylated hydroxyaromatic compound with an alkali metal base; (c) carbonating the alkali metal salt from step (b) with carbon dioxide; (d) acidifying the salt produced in step (c); and (e) overbasing the resulting alkylated hydroxyaromatic carboxylic acid.

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Curtis Bay Campbell
Jill P. Sankhan
Jean-Louis Le Comte
Jean Anthony Verbal

JP2012542104A

July 26, 2017

November 24, 2010

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Chevron Oronite Company LRC
Chevron Oronite S.S.S.

C10M129/54; C10M159/20; C10M177/00

JP2007039689A

WO2009086140A1

Asamura patent office

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