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. 14, 2023
Filed:
Oct. 31, 2018
Basf SE, Ludwigshafen, DE;
Kristine Hartnagel, Ludwigshafen, DE;
Wanthip Poomsuwan, Chon Buri, TH;
Patrick Neal Hamilton, Freeport, TX (US);
Norbert Herfert, Shanghai, CN;
Thomas Daniel, Ludwigshafen, DE;
Olaf Hoeller, Charlotte, NC (US);
BASF SE, Ludwigshafen, DE;
Abstract
In an improved superabsorbent complexed with aluminum ions, the aluminum ions are applied in the form of an aqueous solution comprising aluminum ions, which has the feature that it comprises aluminum ions in a proportion within the range of 0.5%-15% by weight (converted if appropriate to Al), based on the total mass of the solution, and further comprises anions of lactic acid (lactate ions) and phosphoric acid (phosphate ions), where the molar proportion of the lactate ions is within the range of 0.01-2.99 times the molar amount of Aland the molar proportion of the phosphate ions is within the range of 0.01-2.99 times the molar amount of Al.