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Title:
GREASE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2019/044624
Kind Code:
A1
Abstract:
A grease composition containing a base oil (A), a urea-based thickener (B), an antioxidant (C), and a rust inhibitor (D), wherein the maximum frequency peak in the particle size distribution curve on a volume basis obtained by measuring the light scattering particle size of particles containing the urea-based thickener (B) in the grease composition satisfies requirements (I) and (II). ∙Requirement (I): the particle diameter at the maximum frequency peak is 1.0 μm or less. ∙Requirement (II): the half width of the peak is 1.0 μm or less.

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Inventors:
WATANABE GO (JP)
SHISHIKURA AKIHIRO (JP)
KOGA ASAMI (JP)
Application Number:
PCT/JP2018/030988
Publication Date:
March 07, 2019
Filing Date:
August 22, 2018
Export Citation:
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Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M115/08; C10M129/10; C10M129/74; C10M133/04; C10N20/02; C10N20/06; C10N30/10; C10N30/12; C10N40/02; C10N40/04; C10N50/10
Domestic Patent References:
WO2014142198A12014-09-18
Foreign References:
JP2017115109A2017-06-29
JP2007217609A2007-08-30
JPH02196894A1990-08-03
JPS61162595A1986-07-23
JPS52156274A1977-12-26
JP2008013624A2008-01-24
Other References:
See also references of EP 3677661A4
Attorney, Agent or Firm:
HIRASAWA, Kenichi et al. (JP)
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