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Title:
ARC-EXTINGUISHING INSULATION MATERIAL MOLDING AND CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2019/116945
Kind Code:
A1
Abstract:
Provided is an arc-extinguishing insulation material molding which comprises a thermosetting resin cured body in which the contained amount of oxygen atoms per unit volume is at least 1.75×10-2 [mol/cm3]. The thermosetting resin cured body is preferably a cured body of an epoxy resin composition that comprises: an epoxy resin in which the proportion of the number of oxygen atoms included per molecule is at least 9.0% of the total number of constituent atoms; and an acid anhydride in which the number of oxygen atoms included per molecule is at least 12.5% of the total number of constituent atoms.

Inventors:
HOSOKOSHI, Fumihiko (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
HIZA, Shuichi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
WATANABE, Shinya (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
ISHIKURA, Satoshi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
KAWANA, Takashi (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
Application Number:
JP2018/044384
Publication Date:
June 20, 2019
Filing Date:
December 03, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H01H9/34; C08G59/20; C08J5/00; H01H73/18
Foreign References:
JP2009295419A2009-12-17
JPS549756A1979-01-24
JP2012197340A2012-10-18
JPS4938717B11974-10-19
JPS4933839B11974-09-10
JP2012522854A2012-09-27
Attorney, Agent or Firm:
SOGA, Michiharu et al. (S. Soga & Co, 8th Floor Kokusai Building, 1-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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