GREASE COMPOSITION - IDEMITSU KOSAN CO

Title:

GREASE COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2021/200120

Kind Code:

A1

Abstract:

Provided is a grease composition including a base oil (A) and a urea-based thickening agent (B), the grease composition containing particles including the urea-based thickening agent (B) which satisfy requirement (I), wherein the base oil (A) is a base oil mixture comprising a high-viscosity base oil (A1) having a 40°C dynamic viscosity of 250 mm2/s to 550 mm2/s, a low-viscosity base oil (A2) having a 40°C dynamic viscosity of 5.0-110 mm2/s, and an ultrahigh-viscosity hydrocarbon-based synthetic oil (A3) having a number-average molecular weight (Mn) of 2,500-4,500 and a 40°C dynamic viscosity of 25,000-50,000 mm2/s and the base oil (A) has a 40°C dynamic viscosity of 25 mm2/s to 105 mm2/s and a viscosity index of 120 or greater. The grease composition can combine low-temperature properties with a lubricating life.

More Like This:

JP2965794	[Title of Invention] Grease Composition for Rolling Bearing
WO/2012/165562	BEARING GREASE
WO/2002/094970	METHOD OF MANUFACTURING A MULTIFUNCTIONAL ADDITIVE AND USING THE SAME

Inventors:

WATANABE GO (JP)

Application Number:

PCT/JP2021/010632

Publication Date:

October 07, 2021

Filing Date:

March 16, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

IDEMITSU KOSAN CO (JP)

International Classes:

C10M169/02; C10M107/02; C10M115/08; C10N20/00; C10N20/02; C10N20/04; C10N20/06; C10N30/00; C10N30/02; C10N30/06; C10N40/02; C10N40/04; C10N50/10

Domestic Patent References:

WO2017146257A1	2017-08-31
WO2003006590A1	2003-01-23
WO2016125859A1	2016-08-11
WO2017126703A1	2017-07-27
WO2020179589A1	2020-09-10

Foreign References:

JP2016069409A	2016-05-09
JP2010248442A	2010-11-04
JP2017145284A	2017-08-24
KR20140056920A	2014-05-12
JP2016204623A	2016-12-08
JP2018115235A	2018-07-26

Other References: