Title:
SEALING MATERIAL RUBBER COMPOSITION AND SEALING MATERIAL USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/195696
Kind Code:
A1
Abstract:
Provided is a rubber composition which is for sealing materials and which contains 100 parts by mass of a rubber component, 50-140 parts by mass of silica, 1-20 parts by mass of a silane coupling agent, and 15-35 parts by mass of carbon black. The rubber component is preferably an ethylene-propylene-diene rubber.
Inventors:
UEDA AKIRA (JP)
YOSHIDA SAYAKA (JP)
NISHIHARA RYOHEI (JP)
YOSHIDA SAYAKA (JP)
NISHIHARA RYOHEI (JP)
Application Number:
PCT/JP2020/009615
Publication Date:
October 01, 2020
Filing Date:
March 06, 2020
Export Citation:
Assignee:
VALQUA LTD (JP)
International Classes:
C08L21/00; C08K3/04; C08K3/36; C09K3/10
Domestic Patent References:
| WO2007145313A1 | 2007-12-21 | |||
| WO2008001625A1 | 2008-01-03 | |||
| WO2003104317A1 | 2003-12-18 |
Foreign References:
| JP2013072004A | 2013-04-22 | |||
| JP2011153220A | 2011-08-11 | |||
| JP2014015575A | 2014-01-30 | |||
| JP2020051540A | 2020-04-02 | |||
| JP2015206002A | 2015-11-19 | |||
| JP2015108104A | 2015-06-11 |
Other References:
See also references of EP 3950818A4
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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