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:
Feb. 12, 2008
Filed:
Jul. 24, 2003
Norbert Herfert, Charlotte, NC (US);
Michael M. Azad, Charlotte, NC (US);
Michael A. Mitchell, Waxhaw, NC (US);
Guy Thomas Woodrum, Suffolk, VA (US);
William G.-j. Chiang, Yorktown, VA (US);
Patricia D. Brown, Charlotte, NC (US);
James C. Robinson, Chesapeake, VA (US);
Norbert Herfert, Charlotte, NC (US);
Michael M. Azad, Charlotte, NC (US);
Michael A. Mitchell, Waxhaw, NC (US);
Guy Thomas Woodrum, Suffolk, VA (US);
William G.-J. Chiang, Yorktown, VA (US);
Patricia D. Brown, Charlotte, NC (US);
James C. Robinson, Chesapeake, VA (US);
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Superabsorbent polymer (SAP) particels containing a clay are disclosed. The clay is added to an SAP hydrogel prior to SAP neutralization to provide particles having improved fluid acquisition rates and an improved permeability of a fluid through the swollen SAP-clay particles. Diaper cores and absorbent articles containing the SAP-clay particles also are disclosed.