The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 1977
Filed:
May. 19, 1976
Applicant:
Inventors:
Masaaki Watanabe, Tokyo, JA;
Masao Hasegawa, Tokyo, JA;
Jiroe Yamada, Tokyo, JA;
Kouichi Kobayashi, Tokyo, JA;
Assignee:
Asahi-Dow Limited, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ; 2601 / ;
Abstract
A novel heating medium comprising 1,1-diphenyl ethane is provided for use in heating processes. Said heating medium has good thermal stability, a high boiling point and a low melting point. It is applicable over a wide range of temperatures and easily degradable by microorganisms. The oily substances, by-produced in the step of separating ethyl benzene from polyalkyl benzenes in production of ethyl benzene from the reaction between benzene and ethylene, may be available for preparation of said heating medium.