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:
Mar. 31, 2020
Filed:
Dec. 20, 2017
Sabic Global Technologies B.v., Bergen op Zoom, NL;
Paulus Johannes Maria Eijsbouts, Bergen op Zoom, NL;
Rene Heinink, Bergen op Zoom, NL;
Michel Mulder, Bergen op Zoom, NL;
SABIC GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Abstract
The invention is directed to a method for manufacturing bisphenol A. The method for manufacturing bisphenol A comprises: a) reacting phenol and acetone in the presence of an acidic catalyst to form a reaction effluent, and b) crystallising p,p-bisphenol A from the reaction effluent so as to produce a crystal slurry, wherein reacting in step a) is performed in the presence of an inert co-solvent or wherein an inert co-solvent is added to the reaction effluent prior to crystallising in step b), and wherein the weight ratio between said inert co-solvent and said phenol during said crystallising is 60:40 or more.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile