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:
May. 22, 2018
Filed:
Mar. 14, 2014
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Denso Corporation, Kariya-shi, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya-shi, JP;
Masato Kaneko, Ichihara, JP;
Masataka Muto, Kariya, JP;
Masami Sanuki, Kariya, JP;
Takahiro Hoshida, Kariya, JP;
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
DENSO CORPORATION, Kariya-shi, JP;
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya-shi, JP;
Abstract
Provided is a refrigerating machine oil composition, which is to be used for a refrigerant including a mixture of an unsaturated fluorinated hydrocarbon compound, a saturated fluorinated hydrocarbon compound and CO, contains a base oil which includes at least one selected from a polyoxyalkylene glycol, a polyvinyl ether, a copolymer of a poly(oxy)alkylene glycol or a monoether thereof and a polyvinyl ether, and a polyol ester and has a kinematic viscosity at 100° C. of 2 mm/s or more and 50 mm/s or less and a hydroxyl value of 5 mgKOH/g or less, is able to be used for a refrigerating machine system using a refrigerant having a low global warming potential and usable especially for a car air conditioner or the like and including a mixture of an unsaturated fluorinated hydrocarbon compound, a saturated fluorinated hydrocarbon compound and CO, and exhibits not only excellent compatibility with the refrigerant but also excellent stability.