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.

Date of Patent:
Oct. 19, 2021

Filed:

Jan. 28, 2019
Applicant:

Agc Inc., Chiyoda-ku, JP;

Inventors:

Mai Tasaka, Chiyoda-ku, JP;

Hirokazu Takagi, Chiyoda-ku, JP;

Masato Fukushima, Chiyoda-ku, JP;

Toshiyuki Tanaka, Chiyoda-ku, JP;

Assignee:

AGC Inc., Chiyoda-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 5/04 (2006.01); F25B 1/00 (2006.01);
U.S. Cl.
CPC ...
C09K 5/044 (2013.01); C09K 5/04 (2013.01); F25B 1/00 (2013.01); C09K 2205/126 (2013.01); C09K 2205/22 (2013.01); Y02P 20/10 (2015.11);
Abstract

There is provided a working fluid for heat cycle that uses (Z)-1-chloro-2,3,3,3-tetrafluoropropane (HCFO-1224yd(Z)) which has a less impact on the ozone layer, has a less impact on global warming, and has excellent cycle performance, the working fluid for heat cycle having sufficiently ensured stability and having high productivity. The working fluid for heat cycle contains HCFO-1224yd(Z) and an impurity, wherein the impurity includes a specific trace component, and a total content ratio of the trace component to a total amount of the working fluid is less than 1.5 mass %.


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