公开(公告)号：US20190218163A1

公开(公告)日：2019-07-18

申请号：US16363657

申请日：2019-03-25

Applicant: AGC INC.

Inventor： Masato FUKUSHIMA ,  Masaaki TSUZAKI ,  Maki SHIGEMATSU

IPC: C07C21/18 ,  F17C1/00 ,  C07C17/38 ,  C07C21/185 ,  F17C5/00

CPC classification number: C07C21/18 ,  C07C17/38 ,  C07C21/185 ,  F17C1/00 ,  F17C5/00 ,  F17C2203/0643 ,  F17C2203/0646 ,  F17C2203/0648 ,  F17C2221/03

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.

公开(公告)号：US20200346999A1

公开(公告)日：2020-11-05

申请号：US16935395

申请日：2020-07-22

Applicant: AGC INC.

Inventor： Masato FUKUSHIMA ,  Masaaki TSUZAKI ,  Maki SHIGEMATSU

IPC: C07C21/18 ,  F17C5/00 ,  C07C17/38 ,  C07C21/185 ,  F17C1/00

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.