Fluid composition, process for preparation thereof and its use as an electric insulating oil.

摘要

A fluid composition comprising from 30 to 65% by weight of 1-phenyl-1-( alpha -naphthyl)ethane and from 70 to 35% by weight of 1-phenyl-1-( beta -naphthyl)ethane and a process for preparing the same by reacting naphthalene and styrene. The composition has an excellent fluidity at a low temperature, and thus is useful as an electric insulating oil, a heat medium oil or an intermediate material for preparation of fluid for traction drive.