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:
Nov. 14, 2017
Filed:
Sep. 22, 2015
Applicant:
Solvay Advanced Polymers, L.l.c., Alpharetta, GA (US);
Inventor:
Chantal Louis, Alpharetta, GA (US);
Assignee:
Solvay Advanced Polymers, L.L.C., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/40 (2006.01); C07C 315/06 (2006.01); C08G 8/02 (2006.01); C01D 7/00 (2006.01); C07C 45/78 (2006.01); C08G 75/23 (2006.01);
U.S. Cl.
CPC ...
C08G 65/4012 (2013.01); C01D 7/00 (2013.01); C07C 45/78 (2013.01); C07C 315/06 (2013.01); C08G 8/02 (2013.01); C08G 65/4087 (2013.01); C08G 65/4093 (2013.01); C08G 75/23 (2013.01); C08G 2261/3444 (2013.01);
Abstract
The present invention describes a process for preparing a poly(aryl ether ketone) by reacting a nucleophile with 4,4'-difluorobenzophenone (4,4′-DFBP) that is improved through the use of 4,4′-DFBP that meets one or more particular purity conditions. Also described are improved poly(aryl ether ketone) produced using the invention 4,4′-DFBP. Amounts of 2,4′-difluorobenzophenone (2,4′-DFBP), 4-monofluorobenzophenone (4-FBP), chlorine, and monochloromonofluorobenzophenone in 4,4′-DFBP are discussed.