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:
Nov. 04, 2025
Filed:
May. 11, 2022
Daicel Corporation, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Norihiro Kimoto, Tokyo, JP;
Hisayoshi Ito, Tokyo, JP;
Kouichi Umemoto, Tokyo, JP;
Takeru Kashiwagi, Tokyo, JP;
Daisuke Shiro, Tokyo, JP;
Hidekazu Takeuchi, Tokyo, JP;
Hideki Matsuura, Osaka, JP;
Shogo Moroe, Osaka, JP;
Arisa Kawae, Osaka, JP;
Masaru Tanaka, Osaka, JP;
DAICEL CORPORATION, Osaka, JP;
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Abstract
Provided is a composition for a refrigeration machine capable of reducing a friction coefficient in friction between sliding members in a refrigeration machine, and a composition kit for a refrigeration machine for providing the composition for a refrigeration machine. A composition for a refrigeration machine of the present disclosure includes a refrigeration machine oil, nanodiamond particles dispersed in the refrigeration machine oil, and a dispersant. The refrigeration machine oil preferably contains a polyvinyl ether, a polyol ester, a polyalkylene glycol, an alkylbenzene, or a mineral oil. The composition kit for a refrigeration machine of the present disclosure includes a refrigeration machine oil (A) containing a base oil and nanodiamond particles dispersed in the base oil, and a refrigerant (B).