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:
Dec. 05, 2017
Filed:
Apr. 22, 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;
Toshiyasu Sakakura, Tsukuba, JP;
Shouji Yamamoto, Tsukuba, JP;
Takashi Naniki, 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
A method for producing a heterogeneous catalyst for use of synthesizing cyclic carbonates by reacting an epoxide and carbon dioxide in the presence of the catalyst. A method for making a catalyst that includes forming a catalyst precursor then reacting the catalyst precursor with a tertiary phosphine.