Title:
RUBBER COMPOSITION AND METHOD FOR REDUCING ADHESION TO SURFACE OF KNEADER USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/188339
Kind Code:
A1
Abstract:
This rubber composition is obtained by incorporating carbon black having a DBP oil absorption amount of 100 ml/100 g or more and an iodine value of 75-90 g/kg at a proportion of 20-60 parts by weight relative to 100 parts by weight of an ethylene·butene·5-ethylidene-2-norbornene terpolymer. The rubber composition exhibits reduced adhesion to a surface of a kneader, and especially an open roll kneader, from the perspective of kneadability. This rubber composition can achieve stable, safe productivity and can be used in a sealing component that requires a high-pressure gas sealing function in a low temperature environment such as approximately -30 to -60ºC.
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Inventors:
KOGA ATSUSHI (JP)
Application Number:
PCT/JP2019/010522
Publication Date:
October 03, 2019
Filing Date:
March 14, 2019
Export Citation:
Assignee:
NOK CORP (JP)
International Classes:
C08L23/08; C08K3/04; C08K3/36; C08K5/14; C08L45/00; C09K3/10
Domestic Patent References:
| WO2009078185A1 | 2009-06-25 | |||
| WO2017170190A1 | 2017-10-05 |
Foreign References:
| JP2015189870A | 2015-11-02 | |||
| JP2014095073A | 2014-05-22 | |||
| JP2008291992A | 2008-12-04 | |||
| JPS6230137A | 1987-02-09 | |||
| JP2016030810A | 2016-03-07 | |||
| JP2009120731A | 2009-06-04 | |||
| JP2011213822A | 2011-10-27 |
Other References:
See also references of EP 3778756A4
Attorney, Agent or Firm:
YOSHIDA Toshio et al. (JP)
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