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:
Jul. 22, 2014
Filed:
Mar. 28, 2012
Applicants:
Naoto Takada, Iruma-gun, JP;
Masamune Okamoto, Fujimino, JP;
Hideaki Imura, Iruma-gun, JP;
Inventors:
Assignee:
Central Glass Company, Limited, Ube-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/58 (2006.01); C07C 53/38 (2006.01); C07C 51/64 (2006.01); C07C 53/48 (2006.01);
U.S. Cl.
CPC ...
C07C 51/64 (2013.01); C07C 51/58 (2013.01); C07C 53/48 (2013.01);
Abstract
A method for purifying difluoroacetic acid chloride, including the step of bringing a difluoroacetic acid chloride composition that contains at least difluoroacetic acid fluoride into contact with calcium chloride at a temperature enabling reaction thereof thereby converting difluoroacetic acid fluoride into difluoroacetic acid chloride.