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:
Apr. 13, 1993
Filed:
Sep. 10, 1991
Applicant:
Inventors:
Toshiya Hagihara, Izumisano, JP;
Akimitsu Sakai, Wakayama, JP;
Assignee:
Kao Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C10M / ;
U.S. Cl.
CPC ...
252 68 ; 252 / ; 252 / ; 252 67 ; 62114 ;
Abstract
The present invention is directed to a working fluid composition for refrigerating machine comprising: (i) a hydrofluorocarbon, (ii) a compound having an epoxycyclohexyl group and/or a compound having an epoxycyclopentyl group, and (iii) an ester formed between a neopentylpolyol and a saturated branched aliphatic monocarboxylic acid having a carbon number of 7 to 9. The working fluid composition of the present invention is excellent in compatibility, lubricity, thermal stability and insulating property.