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Title:
VISCOSITY INDEX IMPROVER COMPOSITION AND LUBRICANT COMPOSITION
Document Type and Number:
Japanese Patent JP2017031400
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a viscosity index improver composition excellent in shear stability of a lubricant composition, low in HTHS viscosity of the lubricant composition, hard to increase low temperature viscosity of the lubricant composition and easy to handle under ambient temperature.SOLUTION: There is provided a viscosity index improver composition containing a polymer (A) with a monomer (a) represented by the general formula (1) as a constitutional unit and a base oil and having a value (V1) of 40°C kinetic viscosity divided by 100°C kinetic viscosity in a range of 0.2 to 5.SELECTED DRAWING: None

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Inventors:
NAKADA SHIGEKUNI
TATSUMI TAKENORI
Application Number:
JP2016146299A
Publication Date:
February 09, 2017
Filing Date:
July 26, 2016
Export Citation:
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Assignee:
SANYO CHEMICAL IND LTD
International Classes:
C10M149/10; C08F8/00; C08F36/06; C08F290/04; C10M101/02; C10M145/14; C10M157/04; C10M169/04
Domestic Patent References:
JP2015007225A2015-01-15
JP2013129730A2013-07-04
JP2013133460A2013-07-08
JPH08169922A1996-07-02
JP2008031459A2008-02-14
JP2009191258A2009-08-27
Foreign References:
WO2014170169A12014-10-23



 
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