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. 06, 2013
Filed:
Mar. 16, 2009
Ying Sun, Liaoning, CN;
Hua Wang, Liaoning, CN;
Zhongmin Liu, Liaoning, CN;
Martin Philip Atkins, Middlesex, GB;
Ying Sun, Liaoning, CN;
Hua Wang, Liaoning, CN;
Zhongmin Liu, Liaoning, CN;
Martin Philip Atkins, Middlesex, GB;
Dalian Institute of Chemical Physics, Liaoning, CN;
Chinese Academy of Sciences BP P.L.C., London, GB;
Abstract
Process for producing glycolic acid by contacting carbon monoxide and formaldehyde, optionally in the presence of a solvent, with a catalyst including a solid acid. The solid acid is an acidic polyoxometalate compound insoluble in formaldehyde, glycolic acid and the optional solvent, and has a concentration of acid sites of greater than 60 μmol gon the external surface and/or a Hammett Acidity value of less than −12.8.