Title:
LUBRICATING OIL ADDITIVE
Document Type and Number:
Japanese Patent JP2019099808
Kind Code:
A
Abstract:
To provide a polymeric additive for use in a lubricating oil composition for lubricating the crankcase of a spark-ignited or compression-ignited internal combustion engine, the polymeric additive providing friction reducing properties to a lubricating oil.SOLUTION: The lubricating oil composition is provided that comprises at least 50 mass%, based on the mass of the composition, of an oil having lubricating viscosity and 0.01 to 25 mass%, based on the mass of the composition, of an oil soluble poly(2-oxazine)polymer having a repeat unit represented by the following formula, wherein the number (n) of the repeat unit is an integer between 4 and 500, wherein the polymer carries an inorganic or organic nucleophilic polymerization terminating group (t) and an initiator group (i) connected to the N atom of one repeat unit, the initiator group (i) being effective to initiate polymerization of a linear, branched or cyclic hydrocarbyl moieties, wherein Rcomprises a linear, branch or cyclic hydrocarbyl group having 1 to 50 carbon atoms, and some or all having 12 to 50 carbon atoms, or only or a mixture of at least one macromonomer-based hydrocarbyl group having more than 50 carbon atoms.SELECTED DRAWING: None
Inventors:
ANTHONY JAMES STRONG
BEATRICE CATTOZ
DANIEL JAMES PHILLIPS
ANDREW DOUGLAS SCHWARZ
MANUEL HARTWEG
REMZI BECER
BEATRICE CATTOZ
DANIEL JAMES PHILLIPS
ANDREW DOUGLAS SCHWARZ
MANUEL HARTWEG
REMZI BECER
Application Number:
JP2018223224A
Publication Date:
June 24, 2019
Filing Date:
November 29, 2018
Export Citation:
Assignee:
INFINEUM INT LTD
International Classes:
C10M149/14
Domestic Patent References:
| JP2008516055A | 2008-05-15 | |||
| JPH03237195A | 1991-10-23 |
Foreign References:
| US4702854A | 1987-10-27 | |||
| US3483141A | 1969-12-09 | |||
| US3516944A | 1970-06-23 |
Attorney, Agent or Firm:
Shinichiro Tanaka
Disciple Maru Ken
▲吉▼田 和彦
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Satsuki Ichikawa
Hironobu Hattori
Takeshi Fujiwara
Disciple Maru Ken
▲吉▼田 和彦
Atsushi Hakoda
Kenji Asai
Kazuo Yamazaki
Satsuki Ichikawa
Hironobu Hattori
Takeshi Fujiwara