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. 23, 2021
Filed:
Apr. 13, 2016
Savarè I.c. S.r.l., Milan, IT;
Italo Corzani, Milan, IT;
Thomas James Klofta, Cincinnati, OH (US);
Laveeta Joseph, Cincinnati, OH (US);
Johannson Jimmy Tee, Jr., Cincinnati, OH (US);
SAVARÈ I.C. S.R.L., Milan, IT;
Abstract
The present invention relates to wetness indicator compositions that comprise at least one leuco dye and one color developer in a hot-melt adhesive matrix. Upon contact with water or with water-containing fluids, said wetness indicator compositions are apt to change their color from a colorless state to a colorful state or from a first colored state to a second colored state having a color different from the first one; in particular, from a first colorless, white, or translucent state to a second state having a visible color, or vice versa. The disclosed wetness indicator compositions can be used as wetness/fluid indicators in various applications, e.g. in packaging articles and in absorbent articles; in an absorbent mat or sheet or operatory cloth for medical use; in a wound dressing product; in an absorbent mat or sheet for food products.