Invention Grant
- Patent Title: Method for inhibiting generation of copper sulfide
- Patent Title (中): 抑制硫化铜产生的方法
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Application No.: US13881080Application Date: 2011-04-08
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Publication No.: US08728565B2Publication Date: 2014-05-20
- Inventor: Fukutaro Kato , Eiichi Nagao , Tsuyoshi Amimoto , Yoshio Kimura , Noboru Hosokawa , Junji Tanimura , Satoru Toyama
- Applicant: Fukutaro Kato , Eiichi Nagao , Tsuyoshi Amimoto , Yoshio Kimura , Noboru Hosokawa , Junji Tanimura , Satoru Toyama
- Applicant Address: JP Chiyoda-Ku, Tokyo
- Assignee: Mitsubishi Electric Corporation
- Current Assignee: Mitsubishi Electric Corporation
- Current Assignee Address: JP Chiyoda-Ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- International Application: PCT/JP2011/058928 WO 20110408
- International Announcement: WO2012/137350 WO 20121011
- Main IPC: B05D5/12
- IPC: B05D5/12 ; C23C16/52
Abstract:
The present invention provides a method for inhibiting production of copper sulfide in an electrical insulating oil inside an oil-filled electrical apparatus, including adding a benzotriazole compound not having a long-chain alkyl group when the oil-filled electrical apparatus is an open-type oil-filled electrical apparatus, or adding a benzotriazole compound having a long-chain alkyl group when the oil-filled electrical apparatus is a closed-type oil-filled electrical apparatus.
Public/Granted literature
- US20130216698A1 METHOD FOR INHIBITING GENERATION OF COPPER SULFIDE Public/Granted day:2013-08-22
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