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:
Jan. 31, 2017
Filed:
Jun. 25, 2009
Xuedong Song, Alpharetta, GA (US);
Andrew M. Long, Appleton, WI (US);
Wanduk Lee, Seoul, KR;
Jun MO Gil, Deajeon, KR;
Xuedong Song, Alpharetta, GA (US);
Andrew M. Long, Appleton, WI (US);
WanDuk Lee, Seoul, KR;
Jun Mo Gil, Deajeon, KR;
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Abstract
A sensor that is sensitive to the presence of aqueous-based fluids is described. The sensor has a wetness indicating material immobilized or printed on a substrate. The indicating material contains at least one electron-donating leuco dye and one electron deficient receptor, and exhibits a visual signal (e.g., vivid or strong color intensity) in a dry state, which fades or disappears when in contact with a water-containing liquid. An absorbent article incorporating such a sensor to communicate to a user that the article has been exposed to water-containing fluids is also described.