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:
Jan. 02, 2018
Filed:
Jul. 18, 2014
National Institute of Advanced Industrial Science and Technology, Chiyoda-ku, JP;
Maruzen Petrochemical Co., Ltd., Chuo-ku, JP;
Toshikazu Takahashi, Tsukuba, JP;
Hiroyuki Yasuda, Tsukuba, JP;
Shouji Yamamoto, Tsukuba, JP;
Takashi Naniki, Ichihara, JP;
Yasunori Hayashi, Ichihara, JP;
Takeshi Haruna, Ichihara, JP;
Takuro Furukawa, Ichihara, JP;
National Institute of Advanced Industrial Science and Technology, Chiyoda-ku, JP;
MARUZEN PETROCHEMICAL CO., LTD., Chuo-ku, JP;
Abstract
Provided is a method for producing a cyclic carbonate obtained by reacting epoxide and carbon dioxide in the presence of a quaternary onium salt as a counter ion or a quaternary phosphonium salt having a halogenated anion as a counter ion, or in the presence of a solid catalyst obtained by immobilizing the quaternary onium salt onto a carrier, wherein an organohalogen compound containing at least one halogen atom in one molecule is added to the reaction system.