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. 25, 2003
Filed:
May. 04, 2000
Dave A. Soerens, Roswell, GA (US);
Yihua Chang, Portland, OR (US);
William S. Pomplun, West End, NC (US);
Franklin M. C. Chen, Portland, OR (US);
Frederick J. Lang, Neenah, WI (US);
Pavneet S. Mumick, Belle Mead, NJ (US);
Kimberly Clark Worldwide, Inc., Neenah, WI (US);
Abstract
A method of making an ion-sensitive composition is disclosed. The method of the present invention comprises dispersing in a sulfonate anion modified acrylic acid-based polymer a non-crosslinking poly(ethylene-vinyl acetate). The ion sensitive compositions made by the method of the present invention have differing solubilities in neutral salt solutions containing at least about 1 weight percent of one or more monovalent salt ions and water containing up to about 200 ppm of one or more multivalent ions.