Electrical insulating oil and oil-filled electrical appliances
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United States of America Patent
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Oct 21, 1986
Grant Date -
N/A
app pub date -
Feb 28, 1985
filing date -
Mar 8, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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): ##STR1## wherein R.sub.1 to R.sub.4 '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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