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:
Mar. 11, 2025
Filed:
Mar. 12, 2020
Applicant:
Bostik, Inc., Wauwatosa, WI (US);
Inventors:
Kimberly E. Secrist, Wauwatosa, WI (US);
Neil G. Janetski, Milwaukee, WI (US);
Assignee:
Bostik Inc., Wauwatosa, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 13/42 (2006.01); A61F 13/84 (2006.01); A61L 15/34 (2006.01); A61L 15/56 (2006.01); A61L 15/58 (2006.01); A61F 13/511 (2006.01); A61F 13/514 (2006.01); A61L 26/00 (2006.01);
U.S. Cl.
CPC ...
A61F 13/42 (2013.01); A61F 13/8405 (2013.01); A61L 15/34 (2013.01); A61L 15/56 (2013.01); A61L 15/585 (2013.01); A61F 2013/422 (2013.01); A61F 2013/426 (2013.01); A61F 2013/427 (2013.01); A61F 2013/51165 (2013.01); A61F 2013/51411 (2013.01); A61L 26/0071 (2013.01); A61L 2300/22 (2013.01); A61L 2300/802 (2013.01);
Abstract
A hot melt wetness indicator comprising an adhesive base composition utilizing a halogen-free species, namely nitrazine yellow, to trigger color change in hygiene articles, such as disposable diapers, to serve as moisture or wetness indicator upon insult. In some embodiments of the invention, the wetness indicator turns from yellow to purple.