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:
Jun. 24, 2014
Filed:
Mar. 30, 2010
Hideho Matsuda, Niigata, JP;
Yuuichi Sugano, Niigata, JP;
Yoshikazu Shima, Niigata, JP;
Masaki Takemoto, Niigata, JP;
Genki Nogami, Niigata, JP;
Hideho Matsuda, Niigata, JP;
Yuuichi Sugano, Niigata, JP;
Yoshikazu Shima, Niigata, JP;
Masaki Takemoto, Niigata, JP;
Genki Nogami, Niigata, JP;
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Abstract
Provided is a process for producing α-hydroxycarboxylic esters from α-hydroxycarboxylic amides and aliphatic alcohols, wherein it is a production process which is inhibited in a production cost and enhanced in a conversion rate and a selectivity and which is industrially advantageous. To be specific, it is a production process for α-hydroxycarboxylic ester characterized by subjecting α-hydroxycarboxylic amide and aliphatic alcohol to a gas phase reaction in the presence of a zirconium dioxide catalyst. A catalyst lifetime is improved to a large extent by using a zirconium dioxide catalyst containing a specific element.