Title:
ELECTRICAL INSULATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2013/141227
Kind Code:
A1
Abstract:
Provided, as an electrical insulating oil composition which has improved dielectric breakdown voltage and excellent insulation performance, while being extremely insusceptible to deposition of crystals particularly at -50°C, is an electrical insulating oil composition which is characterized by containing: 1-phenyl-1-xylylethane and/or 1-phenyl-1-ethylphenylethane in an amount of 30-70% by mass in total; methylnaphthalene and/or dimethylnaphthalene in an amount of 1-30% by mass in total; and a fused or unfused bicyclic and/or tricyclic aromatic compound other than the above-mentioned compounds in an amount of 29-69% by mass, said aromatic compound having a boiling point of from 220°C to 350°C (inclusive).
Inventors:
KAWAGUCHI TAKAHIRO (JP)
KIMURA NOBUHIRO (JP)
HOSHINO HIROYUKI (JP)
KIMURA NOBUHIRO (JP)
HOSHINO HIROYUKI (JP)
Application Number:
PCT/JP2013/057770
Publication Date:
September 26, 2013
Filing Date:
March 19, 2013
Export Citation:
Assignee:
JX NIPPON OIL & ENERGY CORP (JP)
International Classes:
H01B3/22; C10M105/06; C10M129/18; H01B3/20; C07C15/16; C07C15/24; C10N20/00; C10N20/02; C10N30/00; C10N40/16
Foreign References:
| JPS5750708A | 1982-03-25 | |||
| JPS4928847A | 1974-03-14 | |||
| JPS61241907A | 1986-10-28 | |||
| JPS60143508A | 1985-07-29 | |||
| JPS5975503A | 1984-04-28 | |||
| JPS51147798A | 1976-12-18 | |||
| JP2012256449A | 2012-12-27 |
Attorney, Agent or Firm:
MORITA, NOBUYUKI (JP)
Yoriyuki Morita (JP)
Yoriyuki Morita (JP)
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