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公开(公告)号:CA2678386A1
公开(公告)日:2010-03-19
申请号:CA2678386
申请日:2009-09-11
Applicant: XEROX CORP
Inventor: KAZMAIER PETER M , IFTIME GABRIEL , VANBESIEN DARYL W , ZWARTZ EDWARD G , WANG SHEN-GE , ESCHBACH REINER
Abstract: A toner set includes a plurality of toners, at least one toner but less than all toners of the toner set including binder, colorant and fluorescence agent and remaining additional toners including binder, colorant and free of fluorescence agent. At least a first toner grouping and a second toner grouping of the toner set form a combination, the first and second groupings of the combination exhibiting a substantially same color under ambient light conditions upon image formation. The first toner grouping and the second toner grouping of the combination contain a different amount of the fluorescence agent, wherein upon exposure to activating energy, the fluorescence agent fluoresces to cause a visible change in the color of a pattern formed in an image by the first toner grouping as compared to the second toner grouping.
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公开(公告)号:DE602007001413D1
公开(公告)日:2009-08-13
申请号:DE602007001413
申请日:2007-03-27
Applicant: XEROX CORP
Inventor: CHOPRA NAVEEN , YANG SAN-MING , IFTIME GABRIEL , TAM MAN CHUNG , KAZMAIER PETER M
IPC: G02F1/167
Abstract: Provided is an electrophoretic display device, comprising a multiplicity of individual reservoirs containing a display medium between conductive substrates, at least one of which is transparent, wherein the display medium comprises one or more set of colored particles in a dielectric fluid, and wherein the multiplicity of individual reservoirs comprise mesh openings (52) in a fabric mesh (50) whose fibers or filaments (56) segregate the reservoirs.
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公开(公告)号:CA2631603A1
公开(公告)日:2008-11-25
申请号:CA2631603
申请日:2008-05-20
Applicant: XEROX CORP
Inventor: PAN DAVID H , LIN PINYEN , KAZMAIER PETER M , CHOPRA NAVEEN
Abstract: Methods form multi-color electrophoretic displays. The method includes providing a solution containing microcapsules, wherein the microcapsules comprise a shell that is transparent and a display medium within the shell, wherein t he display medium comprised of either (a) at least two sets of differently colored particles in a substantially clear fluid, or (b) at least one set of colored particles in a differently colored fluid. The method includes dispensing the solution onto a substrate, wherein a display layer of microcapsules is formed on the substrate. The method includes positioning a conductive substrate adjacent to the substrate, wherein the substrate is located between the display layer and the conductive substrate, wherein the conductive substrate applies an electric field to at least one microcapsule of the display layer, wherein the sets of particles of each microcapsule in the display layer are movable within the microcapsule by the electric field to be displayed.
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公开(公告)号:DE60226806D1
公开(公告)日:2008-07-10
申请号:DE60226806
申请日:2002-05-24
Applicant: XEROX CORP
Inventor: FOUCHER DANIEL A , PATEL RAJ D , CHOPRA NAVEEN , KAZMAIER PETER M , WOJTYK JAMES , BUNCEL ERWIN
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公开(公告)号:MY134744A
公开(公告)日:2007-12-31
申请号:MYPI9302390
申请日:1993-11-15
Applicant: XEROX CORP
Inventor: GEORGES MICHAEL K , VEREGIN RICHARD P N , KAZMAIER PETER M , HAMER GORDON K
IPC: C08F299/00 , C08F2/00 , C08F2/38 , C08F4/00 , C08F4/04 , C08F4/28 , C08F4/42 , C08F293/00 , C08F297/00 , G03G9/08 , G03G9/087
Abstract: DISCLOSED IS A FREE RADICAL POLYMERIZATION PROCESS FOR THE PREPARATION OF A THERMOPLASTIC RESIN OR RESINS COMPRISING HEATING A MIXTURE OF A FREE RADICAL INITIATOR, A STABLE FREE RADICAL AGENT, AND AT LEAST ONE POLYMERIZABLE MONOMER COMPOUND TO FORM A THERMOPLASTIC RESIN OR RESINS WITH A HIGH MONOMER TO POLYMER CONVERSION; COOLING SAID MIXTURE; OPTIONALLY ISOLATING THE THERMOPLASTIC RESIN OR RESINS; AND OPTIONALLY WASHING AND DRYING THERMOPLASTIC RESIN OR RESINS. RELATED FREE RADICAL PROCESSES ARE ALSO DISCLOSED FOR THE PREPARATION OF MIXTURES AND BLOCK COPOLYMER THERMOPLASTIC RESINS. RESINS PREPARED BY THE DISCLOSED PROCESSES POSSESSES A NARROW POLYDISPERSITY AND A MODALITY THAT IS CONTROLLED BY THE SELECTION OF A FREE RADICAL INITIATOR AND STABLE FREE RADICAL AGENT ADDITION STEP OR STEPS.(FIG 1)
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公开(公告)号:CA2588322A1
公开(公告)日:2007-11-19
申请号:CA2588322
申请日:2007-05-11
Applicant: XEROX CORP
Inventor: CHOPRA NAVEEN , IFTIME GABRIEL , ENRIGHT THOMAS E , TAM MAN CHUNG , KAZMAIER PETER M , SABAN MARKO D
Abstract: An electrophoretic display device includes a display layer of a multiplicity of individual microcapsules containing a display medium therein and conductive substrates, at least one of the conductive substrates being transparent, wherein the display layer is located in between the conductive substrates, and wherein t he display medium includes one or more set of colored particles in a dielectric fluid a nd has an electrical conductivity of about 10 -11 to about 10 -15 S/m. The microcapsul es may be made by encapsulating the display medium in the wall forming material of the microcapsule, and for example a complex coacervation process may be used.
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公开(公告)号:CA2504997A1
公开(公告)日:2005-10-29
申请号:CA2504997
申请日:2005-04-22
Applicant: XEROX CORP
Inventor: CHOPRA NAVEEN , KAZMAIER PETER M , IFTIME GABRIEL
Abstract: An reimageable medium composed of: a substrate; and a photochromic material, wherein the medium is capable of exhibiting a color contrast and an absence of the color contrast, wherein the medium has a characteristic that when the medium exhibits the absence of the color contrast and is then exposed to an imaging light corresponding to a predetermined image to result in an exposed region and a non-exposed region, the color contrast is present between the exposed region and the non-exposed region to form a temporary image corresponding to the predetermined image that is visible for a visible time, wherein the medium has a characteristic that when the temporary image is exposed to an indoor ambient condition for an image erasing time, the color contrast changes to the absence of the color contrast to erase the temporary image in all of the following: (i) when the indoor ambient condition includes darkness at ambient temperature, (ii) when the indoor ambient condition includes indoor ambient light at ambient temperature, and (iii) when the indoor ambient condition includes both the darkness at ambient temperature and the indoor ambient light at ambient temperature, and wherein the medium is capable of undergoing multiple cycles of temporary image formation and temporary image erasure.
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公开(公告)号:AT188221T
公开(公告)日:2000-01-15
申请号:AT95918968
申请日:1995-05-02
Applicant: XEROX CORP
Inventor: GEORGES MICHAEL K , SABAN MARKO D , KAZMAIER PETER M , VEREGIN RICHARD P N , HAMER GORDON K , MOFFAT KAREN A
Abstract: A polymerization process for the preparation of homopolymeric acrylate containing thermoplastic resin or resins comprising heating a mixture comprised of a free radical initiator, an oxo nitroxide stable free radical agent, at least one polymerizable acrylate monomer compound, and optionally a solvent, to form a homopolymeric acrylate containing thermoplastic resin or resins with a high monomer to polymer conversion and a narrow polydispersity.
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公开(公告)号:BR9605438A
公开(公告)日:1998-08-04
申请号:BR9605438
申请日:1996-11-06
Applicant: XEROX CORP
Inventor: KEOSHKERIAN BARKEV , HAMER GORDON K , KAZMAIER PETER M , GEORGES MICHAEL K
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公开(公告)号:CA2126670C
公开(公告)日:1997-12-16
申请号:CA2126670
申请日:1993-10-01
Applicant: XEROX CORP
Inventor: HAMER GORDON K , KAZMAIER PETER M , VEREGIN RICHARD P N , GEORGES MICHAEL K
IPC: C08F2/00 , C08F2/38 , C08F4/00 , C08F4/04 , C08F4/28 , C08F4/42 , C08F293/00 , C08F297/00 , G03G9/08 , G03G9/087
Abstract: Disclosed is a free radical polymerization process for the preparation of a thermoplastic resin or resins comprising heating a mixture of a free radical initiator, a stable free radical agent, and at least one polymerizable monomer compound to form a thermoplastic resin or resins with a high monomer to polymer conversion; cooling said mixture; optionally isolating the thermoplastic resin or resins, and optionally washing and drying thermoplastic resin or resins. Related free radical processes are also disclosed for the preparation of mixtures and block copolymer thermoplastic resins. Resins prepared by the disclosed processes possess a narrow polydispersity and a modality that is controlled by the selection of a free radical initiator and stable free radical agent addition step or steps. The figure is a plot of percent conversion versus molecular weight of a polystyrene homopolymer product obtained from a bulk or solventless stable free radical agent moderated polymerization of styrene at 130 degrees centigrade.
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