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. 13, 2020
Filed:
Nov. 15, 2016
Applicant:
Daikin Industries, Ltd., Osaka, JP;
Inventors:
Mitsushi Itano, Osaka, JP;
Yasufu Yamada, Osaka, JP;
Tatsumi Tsuchiya, Osaka, JP;
Hitomi Kuroki, Osaka, JP;
Assignee:
DAIKIN INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/04 (2006.01); F25B 9/00 (2006.01); F25B 1/00 (2006.01);
U.S. Cl.
CPC ...
C09K 5/045 (2013.01); C09K 5/04 (2013.01); F25B 9/006 (2013.01); C09K 2205/122 (2013.01); C09K 2205/126 (2013.01); C09K 2205/22 (2013.01); C09K 2205/43 (2013.01); F25B 1/00 (2013.01);
Abstract
The present invention provides a refrigerant composition that has a low GWP and ASHRAE non-flammability performance. Specifically, the present invention provides a composition comprising a mixture of fluorinated hydrocarbons, the mixture comprising difluoromethane (R32), pentafluoroethane (R125), 1,1,1,2-tetrafluoroethane (R134a), and 2,3,3,3-tetrafluoropropene (1234yf) at specific concentrations.