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:
Jul. 17, 2012
Filed:
Oct. 06, 2008
Gabriel Iftime, Mississauga, CA;
C. Geoffrey Allen, Waterdown, CA;
Maria M. Birau, Mississauga, CA;
Christopher A. Wagner, Etobicoke, CA;
Daryl W. Vanbesien, Burlington, CA;
Jordan H. Wosnick, Toronto, CA;
Peter G. Odell, Mississauga, CA;
Gabriel Iftime, Mississauga, CA;
C. Geoffrey Allen, Waterdown, CA;
Maria M. Birau, Mississauga, CA;
Christopher A. Wagner, Etobicoke, CA;
Daryl W. Vanbesien, Burlington, CA;
Jordan H. Wosnick, Toronto, CA;
Peter G. Odell, Mississauga, CA;
Xerox Corporation, Norwalk, CT (US);
Abstract
Radiation curable compositions, such as UV curable ink compositions, contain a polymeric dispersant, a curable material, that includes a carrier and at least one nanoscale fluorescent pigment particle and an optional non-fluorescent colorant. The fluorescent organic nanoparticle composition includes one or more fluorescent dyes dispersed in a polymeric matrix obtained by modified EA latex process or by emulsion polymerization. In a different embodiment, the nanoscale fluorescent pigment particle composition includes pigment molecules with at least one functional moiety, and a sterically bulky stabilizer compound including at least one functional group, the functional moiety of the pigment associates non-covalently with the functional group of the stabilizer, and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized pigment particles.