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:
Mar. 20, 2018
Filed:
Nov. 28, 2014
Applicant:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Inventors:
Assignee:
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 311/94 (2006.01); C07D 311/92 (2006.01);
U.S. Cl.
CPC ...
C07D 311/92 (2013.01);
Abstract
The method according to the present invention is a method for purifying a compound represented by a specific formula (1) or a resin having a structure represented by a specific formula (2), the method including a step of bringing a solution (A) including an organic solvent optionally immiscible with water, and the compound or the resin into contact with an acidic aqueous solution.