Electrical insulating oil and oil-filled electrical appliances

C - Chemistry – Metallurgy – 07 – C

Patent

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31/102, 347/6, 2

C07C 15/50 (2006.01) H01B 3/20 (2006.01) H01B 3/22 (2006.01) H01G 4/22 (2006.01)

Patent

CA 1236122

ABSTRACT OF THE DISCLOSURE An improved electrical insulating oil which is stable in refining treatment and good electrical properties are maintained under high temperature conditions, and oil-filled electrical appliances impregnated therewith. The electrical insulating oil comprises 1,1-diarylalkenes which are represented by the following general formula (I): Image .......(I) wherein R1 to R4's are the same or different and each of them is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and m and n are integers from 0 to 3, inclusive.

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