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:
Sep. 12, 2017
Filed:
Jun. 17, 2016
Applicant:
Asahi Glass Company, Limited, Tokyo, JP;
Inventors:
Assignee:
Asahi Glass Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
F17C 5/00 (2006.01); F17C 5/02 (2006.01); F17C 5/04 (2006.01); F17C 5/06 (2006.01); C07C 21/18 (2006.01); C07C 17/38 (2006.01); C07C 21/185 (2006.01);
U.S. Cl.
CPC ...
C07C 21/18 (2013.01); C07C 17/38 (2013.01); C07C 21/185 (2013.01); F17C 5/00 (2013.01);
Abstract
To provide a method for stably storing tetrafluoropropene filled in a container for e.g. storage or transportation, without occurrence of reaction such as polymerization. A method for storing tetrafluoropropene in a gaseous-liquid state composed of a gas phase and a liquid phase in a closed container, wherein the oxygen concentration (content) in the above gas phase is adjusted to at least 3 vol ppm and less than 3,000 vol ppm at a temperature of 25° C.