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:
Feb. 16, 2021
Filed:
Sep. 03, 2018
Applicant:
Showa Denko K.k., Tokyo, JP;
Inventors:
Assignee:
SHOWA DENKO K.K., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 67/04 (2006.01); B01J 21/08 (2006.01); B01J 35/00 (2006.01); B01J 35/02 (2006.01); B01J 35/10 (2006.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01);
U.S. Cl.
CPC ...
C07C 67/04 (2013.01); B01J 21/08 (2013.01); B01J 35/0026 (2013.01); B01J 35/023 (2013.01); B01J 35/1019 (2013.01); B01J 35/1038 (2013.01); B01J 37/0018 (2013.01); B01J 37/0211 (2013.01);
Abstract
In a method for producing an aliphatic carboxylic acid ester by reacting an aliphatic carboxylic acid having from 1 to 5 carbon atoms and an olefin having from 2 to 4 carbon atoms in a gas phase by use of a solid acid catalyst, a solid acid catalyst in which a heteropolyacid or a salt thereof is supported on a silica carrier obtainable by kneading fumed silica obtained by a combustion method, silica gel obtained by a gel method, and colloidal silica obtained by a sol-gel method or a water glass method, molding the resulting kneaded product, and calcining the resulting molded body, is used.