Dielectrics comprising methyl/benzyl derivatives of diphenylmeth

Details Dielectrics comprising methyl/benzyl derivatives of diphenylmeth Dielectrics comprising methyl/benzyl derivatives of diphenylmeth

1995-03-06

1997-02-11

Lieberman, Paul

Compositions

Fluent dielectric

252581, 585 25, 585 19, 174 25C, 174 23C, C07C 116, C07C 202, C07C 1516, H01B 322

Patent

active

056017553

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.

REFERENCES:
patent: 4189391 (1980-02-01), Kimura et al.
patent: 4493943 (1985-01-01), Sato et al.
patent: 4902841 (1990-02-01), Kawakami et al.

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