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. 07, 2006
Filed:
Jul. 01, 2003
Applicants:
Brian Carvill, Evansville, IN (US);
Katherine Glasgow, Evansville, IN (US);
Michael Roland, Evansville, IN (US);
Inventors:
Brian Carvill, Evansville, IN (US);
Katherine Glasgow, Evansville, IN (US);
Michael Roland, Evansville, IN (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 39/12 (2006.01); C07C 39/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the production of a bisphenol comprises reacting a feed comprising a phenol, a ketone and water in the presence of an ion exchange resin catalyst to produce an effluent; determining the para—para bisphenol selectivity of the reaction; and adjusting the concentration of the water in the feed based upon the para—para bisphenol selectivity in the effluent.