Dielectrics comprising methyl/benzyl derivatives of diphenylmethane
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United States of America Patent
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Feb 11, 1997
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N/A
app pub date -
Mar 6, 1995
filing date -
Feb 27, 1990
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Abstract
Novel dielectric liquids for such electrical components as transformers, capacitors and cables, especially adopted for low temperature applications, comprise immixtures of benzyltoluene, (methylbenzyl)toluene, benzylxylene and (methylbenzyl)xylene, and optionally include the benzyl or methylbenzyl derivatives thereof; these immixtures are facilely prepared by chlorinating a mixture of xylene and toluene and then adding a catalytically effective amount of a Friedel-Crafts catalyst to the medium of chlorination.
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