Title:
COMPOSITE LUBRICATING MATERIAL, ENGINE OIL, GREASE, AND LUBRICATING OIL
Document Type and Number:
WIPO Patent Application WO/2016/002268
Kind Code:
A1
Abstract:
Provided are a composite lubricating material having superior lubricity, an engine oil, a grease, and a lubricating oil. The composite lubricating material results from graphene delaminated from at least a graphitic carbon material and/or a graphitic carbon member being dispersed in a matrix, and is characterized in that the graphitic carbon material has rhombohedral graphite layers (3R) and hexagonal graphite layers (2H), and the fraction Rate (3R) defined by the following formula 1 resulting from an X-ray diffraction method of the rhombohedral graphite layers (3R) and the hexagonal graphite layers (2H) is at least 31%: Rate (3R) = P3/(P3+P4)×100 …(formula 1). Here, P3 is the peak strength in the (101) plane resulting from the X-ray diffraction method of the rhombohedral graphite layers (3R), and P4 is the peak strength in the (101) plane resulting from the X-ray diffraction method of the hexagonal graphite layers (2H).
Inventors:
HASEGAWA SHOJI (JP)
KAMIYA NAGISA (JP)
KAMIYA NAGISA (JP)
Application Number:
PCT/JP2015/058789
Publication Date:
January 07, 2016
Filing Date:
March 23, 2015
Export Citation:
Assignee:
GRAPHENE PLATFORM CORP (JP)
International Classes:
C10M125/02; C01B31/04; C10N20/06; C10N30/06; C10N40/02; C10N40/04; C10N40/25; C10N50/10
Domestic Patent References:
| WO2014064432A1 | 2014-05-01 | |||
| WO2014087992A1 | 2014-06-12 | |||
| WO2014064432A1 | 2014-05-01 |
Foreign References:
| JP2014514231A | 2014-06-19 | |||
| JP2013536141A | 2013-09-19 | |||
| JP2013233790A | 2013-11-21 | |||
| JP2000348727A | 2000-12-15 | |||
| JP2013203905A | 2013-10-07 | |||
| JP2008298097A | 2008-12-11 | |||
| JP2013538914A | 2013-10-17 | |||
| JP2007277500A | 2007-10-25 |
Other References:
MICHIO INAGAKI; HISAE MUGISHIMA; KENJI HOSOKAWA, STRUCTURAL CHANGE OF GRAPHITE WITH GRIDING, 1 February 1973 (1973-02-01)
TOKITI NODA; MASAAKI IWATSUKI; MICHIO INAGAKI, CHANGES OF PROBABILITIES P1, PABA, PABC WITH HEAT TREATMENT OF CARBONS, 16 September 1966 (1966-09-16)
G.PARTHASARATHY: "Spectroscopic and X-ray diffraction studies on fluid deposited rhombohedral graphite from the Eastern Ghats Mobile Belt", CURRENT SCIENCE, vol. 90, no. 7, 10 April 2006 (2006-04-10)
SHINJI KAWASAKI: "Classification of solid carbon materials and their structural characteristics", NAGOYA INSTITUTE OF TECHNOLOGY
"Carbon Products for Mechanical Applications", 12 September 2013, TOYO TANSO CO., LTD.
H. KINOSHITA; Y. NISHINA; A.A. ALIAS; M. FUJII: "Tribological properties of monolayer graphene oxide sheets as water-based lubricant additives", CARBON, vol. 66, January 2014 (2014-01-01), pages 720 - 723, XP028758964, DOI: doi:10.1016/j.carbon.2013.08.045
See also references of EP 2993219A4
TOKITI NODA; MASAAKI IWATSUKI; MICHIO INAGAKI, CHANGES OF PROBABILITIES P1, PABA, PABC WITH HEAT TREATMENT OF CARBONS, 16 September 1966 (1966-09-16)
G.PARTHASARATHY: "Spectroscopic and X-ray diffraction studies on fluid deposited rhombohedral graphite from the Eastern Ghats Mobile Belt", CURRENT SCIENCE, vol. 90, no. 7, 10 April 2006 (2006-04-10)
SHINJI KAWASAKI: "Classification of solid carbon materials and their structural characteristics", NAGOYA INSTITUTE OF TECHNOLOGY
"Carbon Products for Mechanical Applications", 12 September 2013, TOYO TANSO CO., LTD.
H. KINOSHITA; Y. NISHINA; A.A. ALIAS; M. FUJII: "Tribological properties of monolayer graphene oxide sheets as water-based lubricant additives", CARBON, vol. 66, January 2014 (2014-01-01), pages 720 - 723, XP028758964, DOI: doi:10.1016/j.carbon.2013.08.045
See also references of EP 2993219A4
Attorney, Agent or Firm:
SHIGENOBU Kazuo et al. (JP)
Shigenobu Kazuo (JP)
Shigenobu Kazuo (JP)
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