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Title:
FLUORORUBBER COMPOSITION AND FLUORORUBBER MOLDED ARTICLE
Document Type and Number:
WIPO Patent Application WO/2019/087941
Kind Code:
A1
Abstract:
Provided are: a fluororubber composition which satisfies, in a balanced manner, mixing and kneading processability, fluidity of uncrosslinked materials, storage properties of uncrosslinked materials, and gas barrier properties; and a fluororubber molded article comprising a crosslinking substance of the fluororubber composition. This fluororubber composition comprises: a peroxide crosslinkable ternary fluororubber comprising vinylidene fluoride, hexafluoropropylene, and tetrafluoroethylene; a non-reinforcing filler; and a peroxide crosslinking agent. The fluororubber composition is characterized in that the ternary fluororubber has a Mooney viscosity ML1+10 (121°C) of 10 to 35, the non-reinforcing filler is barium sulfate or barium sulfate and talc, and the fluororubber composition comprises 25 to 100 parts by mass of the non-reinforcing filler relative to 100 parts by mass of the ternary fluororubber as dictated by the Mooney viscosity of the ternary fluororubber. Additionally, this fluororubber molded article comprises a crosslinking substance of the fluororubber composition.

Inventors:
OTANI KEITA (JP)
Application Number:
PCT/JP2018/039768
Publication Date:
May 09, 2019
Filing Date:
October 25, 2018
Export Citation:
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Assignee:
NOK CORP (JP)
International Classes:
C08L27/16; C08K3/34; C08K5/14; C08L27/18; C08L27/20; F16J3/02
Domestic Patent References:
WO2008038555A12008-04-03
WO2015072491A12015-05-21
Foreign References:
JP2004162022A2004-06-10
JP2016531992A2016-10-13
JPH11129398A1999-05-18
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P.C. (JP)
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