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Title:
POLYMER COMPOSITION, LUBRICANT ADDITIVE, VISCOSITY INDEX IMPROVER, LUBRICANT COMPOSITION, METHOD FOR PRODUCING POLYMER COMPOSITION, AND METHOD FOR PRODUCING MACROMONOMER
Document Type and Number:
WIPO Patent Application WO/2021/193821
Kind Code:
A1
Abstract:
Provided is a polymer composition wherein the differential distribution value in the differential molecular weight distribution curve of the polymer composition as measured by gel permeation chromatography satisfies formula 1, and the maximum value of normalized back scattering intensity of a 35 wt% base oil solution of the polymer composition, where the size q of the scattering vector of small angle X-ray scattering at 25°C is in the range of 0.07 nm-1 to 2 nm-1, is not less than 40 cm-1.

Inventors:
FUKUTA HIROKI (JP)
MOCHIZUKI KATSUFUMI (JP)
FUJIE FUMIKO (JP)
MUKUDA TAKAHIRO (JP)
NIINO HIROSHI (JP)
OKAMOTO EIKO (JP)
MATSUMURA KAZUNARI (JP)
SHINADA HIROKO (JP)
HAMAMOTO HIROKI (JP)
Application Number:
PCT/JP2021/012531
Publication Date:
September 30, 2021
Filing Date:
March 25, 2021
Export Citation:
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Assignee:
MITSUBISHI CHEM CORP (JP)
International Classes:
C08F265/06; C08F220/18; C08F290/04; C10M101/02; C10M143/08; C10M145/04; C10M145/14; C10M169/04; C10M171/04; C10N20/04; C10N30/02; C10N40/04; C10N40/08; C10N40/25
Domestic Patent References:
WO2003072621A12003-09-04
WO1988004304A11988-06-16
Foreign References:
JPH1025488A1998-01-27
JPH08157855A1996-06-18
JP2015209447A2015-11-24
JP2014152303A2014-08-25
JP2000355616A2000-12-26
JP2020055130A2020-04-09
JP2020055131A2020-04-09
JP2013203913A2013-10-07
JPH10298576A1998-11-10
US4680352A1987-07-14
JPS60133007A1985-07-16
US5147952A1992-09-15
Other References:
JOURNAL OF PHYSICS: CONFERENCE SERIES, vol. 247, 2010, pages 012005
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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