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. 12, 2021
Filed:
Nov. 13, 2017
Samhwa Paints Industries Co., Ltd., Ansan-si, KR;
Myeng Chan Hong, Pyeongtaek-si, KR;
Yeong Sup Choi, Ansan-si, KR;
Da Eun Kwon, Gunpo-si, KR;
Jong Yun Kwak, Seoul, KR;
SAMHWA PAINTS INDUSTRIES CO., LTD., Ansan-si, KR;
Abstract
The present invention relates to a method for producing fluorine-containing dialkyl carbonate compounds, which are suitable as non-aqueous solvents for non-aqueous electrolytes used in secondary batteries. When an alkyl chloroformate and an alcohol are reacted in the presence of an ether-containing imidazole derivative base, the reaction can be carried out at room temperature as compared with the prior art, and the products can be separated within a short time from the reactants. This is an economical process, and according to the present invention, it is possible to obtain alkyl carbonates containing fluorine atoms simply and without difficulty in the removal of solvents, salts formed during the reaction, and by-products.