Title:
SEAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2018/151016
Kind Code:
A1
Abstract:
The present invention provides a seal material having abrasion resistance that enables use thereof in construction machines intended to be used under severe conditions while maintaining mechanical strength. This seal material comprises a fluorine resin composition that contains (1) and (2), and further contains (3) or (4), indicated in the following. A composite metal oxide of the present invention contains (1) a fluorine resin, (2) bronze, (3) tricobalt tetroxide, and (4) cobalt and aluminum. The composite metal oxide further contains at least one metal selected from the group consisting of chromium, titanium, magnesium, calcium, and lithium. The fluorine resin is preferably polytetrafluoroethylene. Further, the seal material can be used in construction machines.
Inventors:
KITAGAWA ASAHI (JP)
SUZUKI YUICHI (JP)
SUZUKI YUICHI (JP)
Application Number:
PCT/JP2018/004489
Publication Date:
August 23, 2018
Filing Date:
February 08, 2018
Export Citation:
Assignee:
NOK CORP (JP)
International Classes:
F16J15/20; C01G51/00; C08J5/16; F16J15/18
Foreign References:
| JP2003336744A | 2003-11-28 | |||
| JP2010138404A | 2010-06-24 |
Other References:
See also references of EP 3584471A4
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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