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:
Oct. 03, 2023
Filed:
Apr. 25, 2019
Applicant:
Daikin Industries, Ltd., Osaka, JP;
Inventors:
Mitsushi Itano, Osaka, JP;
Hitomi Kuroki, Osaka, JP;
Shun Ohkubo, Osaka, JP;
Tatsumi Tsuchiya, Osaka, JP;
Kenji Gobou, Osaka, JP;
Assignee:
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/04 (2006.01); C10M 105/38 (2006.01); C10M 107/24 (2006.01); C10M 107/34 (2006.01); F25B 13/00 (2006.01); C10N 40/30 (2006.01);
U.S. Cl.
CPC ...
C09K 5/045 (2013.01); C10M 105/38 (2013.01); C10M 107/24 (2013.01); C10M 107/34 (2013.01); F25B 13/00 (2013.01); C09K 2205/106 (2013.01); C09K 2205/122 (2013.01); C09K 2205/126 (2013.01); C09K 2205/40 (2013.01); C10M 2207/2835 (2013.01); C10M 2209/043 (2013.01); C10M 2209/1033 (2013.01); C10N 2040/30 (2013.01);
Abstract
The present disclosure addresses the problem of providing a refrigerant composition that has a low GWP and a refrigerating capacity equivalent to that of R404A, which is currently widely used. As a solution to the problem, the present disclosure provides a composition containing carbon dioxide and a mixture of fluorinated hydrocarbons, the mixture containing difluoromethane (R32), pentafluoroethane (R125), 2,3,3,3-tetrafluoropropene (R1234yf), 1,1,1,2-tetrafluoroethane (R134a), and carbon dioxide (CO) in specific concentrations.