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:
Jul. 05, 1988
Filed:
Mar. 18, 1987
Applicant:
Inventors:
Assignee:
Idemitsu Kosan Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 73 ; 585-1 ; 585 21 ; 585360 ; 252-9 ; 252 11 ;
Abstract
The working fluid for traction drive use has a particularly high traction coefficient at high temperatures and the principal ingredient thereof is a decahydronaphthalene compound substituted, on either one or both of the decahydronaphthalene rings, with two or three substituent groups which may be cyclohexyl groups, cyclohexyl alkyl groups, e.g. cyclohexyl methyl, cyclohexyl ethyl, 1-methyl-1-cyclohexyl ethyl and 1-methyl-1-(methylcyclohexyl) ethyl groups, or a combination thereof. The working fluid can be a mixture of a base oil of various types and the above mentioned decahydronaphthalene compound in an amount of 5 to 250 parts by weight per 100 parts by weight of the base oil.