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:
Aug. 02, 2022
Filed:
Dec. 26, 2019
Industrial Technology Research Institute, Hsinchu, TW;
Chih-Yao yang, Hsinchu, TW;
Kuo-Ching Wu, Lieyu Township, TW;
Hsi-Yen Hsu, Hsinchu, TW;
Yu-Shan Chao, Hsinchu, TW;
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu, TW;
Abstract
A method of forming dialkyl carbonate is provided, which includes introducing carbon dioxide into a catalyst to form dialkyl carbonate, wherein the catalyst is formed by activating a catalyst precursor using alcohol, wherein alcohol is R—OH, and Ris Calkyl group or Caryl or heteroaryl group. The catalyst precursor is formed by reacting Sn(R)(L)and Ti(OR), and Sn(R)(L)and Ti(OR)have a molar ratio of 1:2 to 2:1. Ris Calkyl group, Ris H or Calkyl group, and L is O—(C═O)—R, and Ris Calkyl group. The dialkyl carbonate is