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:
Oct. 22, 2024
Filed:
Jul. 15, 2019
Basf SE, Ludwigshafen, DE;
Marco Krueger, Ludwigshafen, DE;
Ruediger Funk, Ludwigshafen, DE;
Thomas Pfeiffer, Ludwigshafen, DE;
Karl Possemiers, Antwerp, BE;
Juergen Schroeder, Ludwigshafen, DE;
Matthias Weismantel, Ludwigshafen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for producing superabsorbent particles by polymerizing a monomer solution or suspension, comprising the steps of continuously preneutralizing a monomer while cooling and partly recycling the preneutralized monomer into the preneutralization, continuously heating the preneutralized monomer by means of a heat exchanger and continuously postneutralizing the heated monomer, wherein the monomer solution or suspension prior to entry into the polymerization reactor is at a temperature of 70 to 99° C. and the temperature of the heating medium used in the heat exchanger is less than 160° C.