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. 04, 1997
Filed:
Dec. 22, 1994
Applicant:
Inventors:
Jacek Dutkiewicz, Appleton, WI (US);
Xin Ning, Alpharetta, GA (US);
Jian Qin, Appleton, WI (US);
Tong Sun, Neenah, WI (US);
Assignee:
Kimberly-Clark Corporation, Neenah, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536 20 ; 536 553 ; 536124 ; 424443 ; 424488 ;
Abstract
Disclosed is a method for producing a water-swellable, water-insoluble chitosan salt having improved absorption properties. The method involves forming a mixture of a chitosan, water, an acid, and, optionally, a crosslinking agent, recovering the formed chitosan salt from the mixture and, optionally, treating said recovered chitosan salt with heat or under humid conditions.