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. 10, 2004
Filed:
Sep. 07, 2001
Applicant:
Inventors:
Eishun Tsuchida, Tokyo, JP;
Kenichi Oyaizu, Tokyo, JP;
Yosuke Kumaki, Tokyo, JP;
Kei Saito, Tokyo, JP;
Assignee:
Japan Science and Technology Corporation, Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 4/109 ; C07C 4/3205 ; C07C 4/3215 ;
U.S. Cl.
CPC ...
C07C 4/109 ; C07C 4/3205 ; C07C 4/3215 ;
Abstract
The synthesis of fluoropolyarylene ether with a high degree of polymerization is enabled, by using a copper complex catalyst with an oxidation potential in the range of −1V to 2V, for the oxidative polymerization of fluorophenols that contain at least one hydrogen atom as well as a fluorine atom bonded to the carbon atoms constituting the benzene ring.