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. 13, 2009
Filed:
Sep. 19, 2005
Lei Huang, Duluth, GA (US);
Xuedong Song, Roswell, GA (US);
Lei Huang, Duluth, GA (US);
Xuedong Song, Roswell, GA (US);
Kimberly-Clark Worldwide, Inc., Neenah, WI (US);
Abstract
A composition and method for encapsulating colorant molecules in polymeric particles are described. Colorant molecules, such as dye, are doped or embedded in a particle, at least in part, composed of a halogen-containing polymeric matrix that can effectively isolate the dye molecules from reaction with photo-oxidizing or reducing agents. The isolated colorant molecule is protected from photo-bleaching and other color degradation, and show superior photo-stability. The encapsulating polymer matrix can be cross-linked and can have a variety of surface functional groups, which may be adapted to help achieve either strong ionic or covalent binding to desired substrates. Also described are methods for producing protective particles, and ink mediums for applying the particles to substrates.