Title:
MANUFACTURING METHOD OF LUBRICANT ADDITIVE
Document Type and Number:
Japanese Patent JP2019151766
Kind Code:
A
Abstract:
To provide the manufacturing method of the lubricant additive, that can suppress occurrence of dirt that is difficult to clean in a reaction vessel after radical polymerization when a specific macromonomer is used as a raw material.SOLUTION: The manufacturing method of the lubricant additive comprises a polymerization step of copolymerizing two or more monomer components containing a macromonomer represented by the following formula (1) to obtain a copolymer, wherein a peroxide concentration after an average polymerization rate of the two or more monomer components is 80 mass% is 0.15 mass% or less with respect to a total amount of charged monomer components in the polymerization step (in the formula (1), Rrepresents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and X represents an urethane bond (-NH-CO-O-), an urea bond (-NH-CO-NH-), an ester bond (-CO-O-), an amide bond (-NH-CO-), a sulfonate ester bond (-SO-O-), or sulfonamide bond (-SO-NH-), and Rrepresents a hydrocarbon group having an iodine value of 45 or less).SELECTED DRAWING: None
Inventors:
YASUMURA KAZUNARI
IMAIZUMI YOHEI
MATSUI DAISUKE
IZUMI KEIKO
IMAIZUMI YOHEI
MATSUI DAISUKE
IZUMI KEIKO
Application Number:
JP2018039068A
Publication Date:
September 12, 2019
Filing Date:
March 05, 2018
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND
International Classes:
C10M149/02; C10M145/14; C10M149/06; C10M151/02; C10M169/04
Domestic Patent References:
| JP2014224246A | 2014-12-04 | |||
| JP2016169368A | 2016-09-23 | |||
| JP2006008842A | 2006-01-12 | |||
| JP2013537572A | 2013-10-03 | |||
| JP2015086314A | 2015-05-07 |
Attorney, Agent or Firm:
Green duck