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:
Sep. 16, 2025
Filed:
Dec. 01, 2020
Basf SE, Ludwigshafen, DE;
Michael Schoenherr, Ludwigshafen, DE;
Kati Schmidt, Ludwigshafen, DE;
Johannes Felix Haus, Ludwigshafen, DE;
Michael Klemens Mueller, Ludwigshafen, DE;
Frank Jaekel, Ludwigshafen, DE;
Marta Reinoso Garcia, Ludwigshafen, DE;
Volker Klock, Ludwigshafen, DE;
BASF SE, Ludwigshafen am Rhein, DE;
Abstract
A process for making a granule containing (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and of iminodisuccinic acid (IDS), and, optionally, (B) at least one homo- or copolymer of (meth) acrylic acid, partially or fully neutralized with alkali, the process including the steps of (a) providing an aqueous solution or slurry containing chelating agent (A) and, if applicable, (co) polymer (B), (b) removing most of the water by spray granulation in a fluidized bed, (c) treating the resultant granule in a vessel of which at least one part rotates around a horizontal axis and wherein the vessel is selected from paddle mixers, free-fall mixers and plough share mixers.