Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
低温特性の良い潤滑油用清浄剤およびその製造方法
Document Type and Number:
Japanese Patent JP2013512993
Kind Code:
A
Abstract:
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.

Inventors:
Curtis Bay Campbell
Jill P. Sankhan
Jean-Louis Le Comte
Jean Anthony Verbal
Application Number:
JP2012542104A
Publication Date:
April 18, 2013
Filing Date:
November 24, 2010
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
Chevron Oronite Company LRC
Chevron Oronite S.S.S.
International Classes:
C10M129/54; C10M159/20; C10M177/00; C10N20/02; C10N30/08; C10N40/25; C10N70/00
Domestic Patent References:
JPH0748586A1995-02-21
JPH07242892A1995-09-19
JPH09511015A1997-11-04
JP2007039689A2007-02-15
Foreign References:
WO2009086140A22009-07-09
Attorney, Agent or Firm:
Yanagawa Yasuo