Title:
MARINE ENGINE LUBRICATION
Document Type and Number:
Japanese Patent JP2019099817
Kind Code:
A
Abstract:
To provide an additive concentrate suitable for an MDCL lubricant and having excellent stability, which does not cause adverse problems, and to provide a method for producing the same and a lubricant composition containing the same.SOLUTION: A method of preparing an additive concentrate for a marine engine lubricating oil composition includes a step (i) of providing the following (A) and (B) as separate additive components: (A) at least one overbased metal detergent, and (B) an oil-soluble alkoxylated alcohol, having an HLB in a range 7-9.5, represented by a formula R-[O-(CH)]-OH, where R is a linear alkyl group having from 12 to 20 carbon atoms, x is an integer from 1 to 10, y is an integer from 2 to 10, and a ratio of x/y is a value to provide the HLB in the above range; and a step (ii) of mixing an oil having lubricating viscosity in a concentrate-forming amount with an additive compound comprising (A) and (B).
Inventors:
LOUISE RENOUF
STUART ALEXANDER TAYLOR
PHILIP JAMES WOODWARD
STUART ALEXANDER TAYLOR
PHILIP JAMES WOODWARD
Application Number:
JP2018224864A
Publication Date:
June 24, 2019
Filing Date:
November 30, 2018
Export Citation:
Assignee:
INFINEUM INT LTD
International Classes:
C10M169/04; C10M129/16; C10M129/18; C10M159/22; C10M159/24
Domestic Patent References:
| JP2010209182A | 2010-09-24 | |||
| JP2000319678A | 2000-11-21 | |||
| JPS6485293A | 1989-03-30 |
Foreign References:
| WO2015023575A1 | 2015-02-19 | |||
| WO2013175530A1 | 2013-11-28 | |||
| WO2016123106A2 | 2016-08-04 | |||
| WO2014107315A1 | 2014-07-10 | |||
| US4493776A | 1985-01-15 | |||
| US5397486A | 1995-03-14 | |||
| EP0311166A1 | 1989-04-12 |
Attorney, Agent or Firm:
Shinichiro Tanaka
Disciple Maru Ken
▲吉▼田 和彦
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Satsuki Ichikawa
Hironobu Hattori
Kobayashi Machiko
Disciple Maru Ken
▲吉▼田 和彦
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Satsuki Ichikawa
Hironobu Hattori
Kobayashi Machiko