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:
Jul. 13, 2010
Filed:
Jul. 07, 2004
Thomas Daniel, Waldsee, DE;
Ulrich Riegel, Landstuhl, DE;
Mark Elliott, Ludwigshafen, DE;
Ubbo Von Oehsen, Neuluβheim, DE;
Kai Michael Exner, Eppelheim, DE;
Klemens Massonne, Bad Dürkheim, DE;
Thomas Daniel, Waldsee, DE;
Ulrich Riegel, Landstuhl, DE;
Mark Elliott, Ludwigshafen, DE;
Ubbo von Oehsen, Neuluβheim, DE;
Kai Michael Exner, Eppelheim, DE;
Klemens Massonne, Bad Dürkheim, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
A process for postcrosslinking a water-absorbing polymer comprises said polymer being treated with a postcrosslinker and, during or after said treating, being postcrosslinked and dried by temperature elevation, said postcrosslinker being a compound of the formula I where R, R, R, R, R, R, R, Rand Rare each independently hydrogen, C-C-alkyl, C-C-alkenyl or C-C-aryl, wherein C-C-alkyl, C-C-alkenyl or C-C-aryl may be halogen substituted. The liquid-absorbing polymers are useful in hygiene articles and packaging materials.