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:
May. 03, 2018
Basf SE, Ludwigshafen, DE;
Martin Weber, Maikammer, DE;
Christian Maletzko, Altrip, DE;
Joerg Erbes, Karlsruhe, DE;
Tobias Kortekamp, Mannheim, DE;
Bastiaan Bram Pieter Staal, Limburgerhof, DE;
Thomas Heil, Wachenheim, DE;
BASF SE, Ludwigshafen, DE;
Abstract
The present invention relates to a method of forming a polyarylene ether sulfone polymer by converting a reaction mixture (R) comprising a dihalogen component (A1), a dihydroxy component (B1) and potassium carbonate (C1) having a volume-average particle size of <25 μm. The present invention further relates to the polyarylene ether sulfone polymers obtainable by said method, to products obtainable from said polyarylene ether sulfone polymer and to membranes formed from said polyarylene ether sulfone polymer.