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:
May. 26, 2026
Filed:
Mar. 18, 2021
Basf SE, Ludwigshafen am Rhein, DE;
Faissal-Ali El-Toufaili, Ludwigshafen am Rhein, DE;
Daniel Barrera-Medrano, Ludwigshafen am Rhein, DE;
Dennis Loesch, Ludwigshafen am Rhein, DE;
Anna-Corina Schmidt, Trostberg, DE;
Kristian Alexander Gill, Ludwigshafen am Rhein, DE;
Tobias Joachim Zimmermann, Ludwigshafen am Rhein, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
Process and a plant for making polyacrylamides by polymerizing an aqueous solution comprising at least acrylamide and acrylic acid or salts thereof in the presence of initiators for radical polymerization under adiabatic conditions, wherein acrylamide and acrylic acid are stored at the site of the plant as dilute aqueous solutions in pressure-resistant tanks and also the monomer mixing vessel and the polymerization vessel are pressure-resistant. The combination of using diluted monomer solutions and pressure-resistant tanks ensures that even in case of an unintended and uncontrolled polymerization, said vessels don't burst and there is no spill out of the plant to the environment.