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    TONER CONTAINING FLUORESCENT NONOPARTICLES
    14.
    发明专利
    TONER CONTAINING FLUORESCENT NONOPARTICLES 未知

    公开(公告)号：CA2680954C

    公开(公告)日：2013-04-16

    申请号：CA2680954

    申请日：2009-09-29

    Applicant: XEROX CORP

    Inventor： IFTIME GABRIEL ,  VANBESIEN DARYL W ,  BIRAU MARIA ,  WOSNICK JORDAN ,  KAZMAIER PETER M

    IPC: G03G9/08

    Abstract: A method for making toners to include at least one nanoscale fluorescent pigment particle composition and/or a fluorescent organic nanoparticle composition. The particles are incorporated into emulsion of toner and used in making toner via emulsion aggregation. Such toners may have a core and/or a shell and the clay composites may be included within the core, the shell or both. The fluorescent organic nanoparticle composition includes a polymeric matrix obtained by modified EA latex process and/or emulsion polymerization and one or more fluorescent dyes and 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.

    SENSORS AND METHODS FOR DETERMINING WHETHER AN ITEM HAS BEEN EXPOSED TO AN ENVIRONMENTAL CONDITION
    16.
    发明专利
    SENSORS AND METHODS FOR DETERMINING WHETHER AN ITEM HAS BEEN EXPOSED TO AN ENVIRONMENTAL CONDITION 未知

    公开(公告)号：CA2714321A1

    公开(公告)日：2011-03-10

    申请号：CA2714321

    申请日：2010-09-03

    Applicant: XEROX CORP

    Inventor： KAVASSALIS THOMAS A ,  KAZMAIER PETER M ,  IFTIME GABRIEL ,  MORIMITSU KENTARO ,  GOREDEMA ADELA

    IPC: G01J1/50 ,  C09K9/00 ,  G01J5/00

    Abstract: A method for determining whether an item has been exposed to an environmental condition during a monitoring period. The method includes placing a sensor at least in proximity to the item at the beginning of the monitoring period so that the sensor will be exposed to a level of an environmental condition that can be correlated to an exposure level of the item to the environmental condition; reading the sensor; and determining from reading the sensor whether the item has been exposed to the environmental condition. The sensor includes a detecting material comprising a photochromic or photothermochromic material, the detecting material selected so that upon exposure to the environmental condition the detecting material exhibits a detectable color change.

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