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:
Apr. 06, 2021
Filed:
Apr. 29, 2020
Korea Institute of Science and Technology, Seoul, KR;
Bok Ryul Yoo, Seoul, KR;
Daejin Kim, Seoul, KR;
Korea Institute of Science and Technology, Seoul, KR;
Abstract
A method for producing tetraalkoxysilane includes reacting a compound represented by Chemical Formula 1 below with an alkali metal at a molar ratio ranging from 1.0:1.0 to 1.0:1.1 and in the absence of a solvent to produce a basic catalyst represented by Chemical Formula 2 below; and mixing the basic catalyst represented by Chemical Formula 2, silicon metal, and an alcohol represented by Chemical Formula 3 below to produce tetraalkoxysilane: Chemical Formula 1O(CHRCHO)—H, Chemical Formula 2O(CHRCHO)-, and Chemical Formula 3OH, where M is alkali metal, Rrepresents a C1-C5 linear hydrocarbon group or a C3-C5 branched hydrocarbon group, Rrepresents H or a C1-C3 linear hydrocarbon group, Rrepresents a C1-C2 alkyl group, and n is an integer of 2-3. Thus, it is possible to increase the proportion of the catalyst in the process, and to minimize production of impurities caused by solvent decomposition.