Diamond Shamrock Corporation

Jack A Borror

Edward A Rowe, Jr

Norman L Beckers

James J Lukes

Electrical devices such as transformers and power capacitors are improved by the use of a dielectric fluid prepared by combining perchloroethylene having a low chlorinated ethane content with an antioxidant. This fluid has excellent resistance to decomposition over long periods of time and under severe operational conditions.

Perchloroethylene dielectric fluid containing pyrrole and phenol

A method for preventing the undesired hydrochlorination of unsaturated hydrocarbons and chlorohydrocarbons in the presence of aluminum chloride involves the addition of a material capable of preferentially inactivating the ability of the AlCl.sub.3 to catalyze hydrochlorination.

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Chesterland, OH, United States of America

Jack A Borror