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:
Dec. 15, 2015
Filed:
Dec. 11, 2012
Applicant:
Solvay Specialty Polymers Usa, Llc., Alpharetta, GA (US);
Inventors:
Walter Reichle, Warren, NJ (US);
Olivier Vidberg, Pace, FR;
Nicholas Almeter, Augusta, GA (US);
Chantal Louis, Alpharetta, GA (US);
Assignee:
SOLVAY SPECIALTY POLYMERS USA, LLC, Alpharetta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 17/361 (2006.01); C07C 315/00 (2006.01); C07C 303/02 (2006.01); C07C 303/06 (2006.01); C07C 17/35 (2006.01); C07C 25/06 (2006.01); C07C 25/08 (2006.01);
U.S. Cl.
CPC ...
C07C 17/361 (2013.01); C07C 17/35 (2013.01); C07C 25/06 (2013.01); C07C 25/08 (2013.01); C07C 303/02 (2013.01); C07C 303/06 (2013.01); C07C 315/00 (2013.01);
Abstract
A process for the manufacture of a haloaryl compound which comprises contacting a mixture of dihalodiarylsulfone isomers [mixture (M)] with sulfuric acid to provide a mixture of haloarylsulfonic acid isomers [mixture (M1)] and reacting mixture (M1) in the presence of water. The process is independent on the manufacturing process of mixture (M) and is advantageous in that the obtained haloaryl compound can be recycled to the first step of a dihalodiarylsulfone manufacturing process.