Patent application number | Description | Published |
20080218540 | DUAL PRINTER FOR REGULAR AND RAISED PRINT - Disclosed is an ink jet printing device including an ink jet print head and a print region surface toward which ink is jetted from the ink jet print head, wherein a height distance between the ink jet print head and the print region surface is adjustable. The ink jet printing device is thus a dual printing device capable of printing both regular height and raised height images such as Braille. | 09-11-2008 |
20080220187 | DOCUMENT AND METHOD OF MAKING DOCUMENT INCLUDING INVISIBLE INFORMATION FOR SECURITY APPLICATIONS - A document includes paper having an average surface roughness of at least about 0.5 microns and including one or more optical brighteners, and includes at least one image thereon wherein the at least one image includes clear binder and light absorbing material that absorbs light only at wavelengths below 350 nm. The image is substantially not detectable to a naked human eye through differential gloss or exposure to light having wavelengths of 365 nm or more, but may be revealed to the naked human eye by exposing the document to light having a wavelength at which the light absorbing material absorbs light. | 09-11-2008 |
20080237550 | PARTICLES FOR ELECTROPHORETIC MEDIA - Compositions of encapsulated triboelectrically charged particles and methods for making them using a spinning disc process are disclosed. The methods can be used to make charged pigment particles embedded in a neutral polymer matrix. The polymer matrix keeps oppositely charged pigment particle from agglomerating. The particles can be used for electrophoretic displays. | 10-02-2008 |
20080261159 | Electrophoretic Display Device - An electrophoretic display device includes a multiplicity of individual reservoirs containing a display medium between conductive substrates, at least one of which is transparent, wherein the display medium includes one or more set of colored particles in a dielectric fluid, and wherein the multiplicity of individual reservoirs are defined by a unitary grid whose walls segregate the reservoirs. The gird may be formed via photolithography or from a master stamp derived from a mold of the grid pattern. | 10-23-2008 |
20080264796 | LATERAL WIRE APPARATUS AND METHOD FOR MONITORING OF ELECTROPHORETIC INK PARTICLE MOTION - A lateral wire apparatus allows direct lateral viewing of particles of electrophoretic ink (e.g., liquid emulsion aggregation particle (LEAP) ink) that are undergoing electrophoretic migration. Electrophoretic ink movement is commonly monitored by placing the ink through the top electrode, but as the toner particles migrate back and forth between the two electrodes, the viewer can not see what lies beneath the top electrode. This may hide commonly known failure modes, such as particle agglomeration, swishing of particles due to hydrodynamic effects. The lateral wire apparatus includes two narrow gauge wires glued to a glass substrate and held apart at a fixed distance to help maintain a uniform electric field across the gap. A plastic block with pegs that situated at a fixed distance and threaded screws is used to make the lateral wire apparatus with precise wire spacing that may be reproducibly made in less than five minutes using inexpensive and readily available materials. | 10-30-2008 |
20080291526 | Core-Shell Particles Containing Fluorescent Components for Electrophoretic Displays - An electrophoretic ink includes fluid having either (a) at least two sets of differently colored particles with the fluid been a substantially clear fluid, or (b) at least one set of colored particles with the fluid been a differently colored fluid than the colored particles, wherein at least one set of colored particles includes at least one electrophoretic particle having a core-shell structure. The at least one electrophoretic particle includes a shell and a core located within the shell, wherein the core includes a colorant and a fluorescent compound. An electric field may be applied adjacently to the fluid of the ink, and the at least one set of colored particles having the core-shell structure is movable within the fluid of the ink by the electric field. | 11-27-2008 |
20080292782 | METHOD FOR FORMING AN ELECTRONIC PAPER DISPLAY - 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 the 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. | 11-27-2008 |
20080292978 | METHOD FOR FORMING AN ELECTRONIC PAPER DISPLAY - Methods form a multi-color electrophoretic display. The methods include providing microcapsules, wherein the microcapsules have an electrostatic charge, and wherein the microcapsules comprise, a shell that is transparent and a display medium within the shell, wherein the display medium is 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 methods include transferring the microcapsules to a substrate, wherein the electrostatic charge of the microcapsules attracts the microcapsules to the substrate, wherein a display layer of microcapsules is formed on the substrate. The methods include positioning a conductive substrate adjacent to the substrate, wherein the substrate is located between the display layer and the conductive substrate. In use, the conductive substrate applies an electric field to the display layer, and wherein the sets of particles within each microcapsule in the display layer are moveable within the microcapsule by the electric field. | 11-27-2008 |
20080310869 | SYSTEM AND METHOD FOR PRINTING REIMAGEABLE TRANSIENT DOCUMENTS - A system and a method print one or more images to one or more reimageable documents, wherein the one or more representative of at least a portion of a digital file. The method includes a connecting a portable printer to a computing device. Moreover, the method includes emitting ultraviolet light from a light source, wherein an imaging layer of the reimageable document is imageable by ultraviolet light, wherein ultraviolet light forms a color contrast on the imaging layer that defines an image representative of at least a portion of the digital file. | 12-18-2008 |
20080311489 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into a substrate, where the imaging layer is formed of an imaging composition that includes a solvent or a polymeric binder, and a photochromic material selected from substituted fulgides and substituted dithienylethenes, dissolved or dispersed in the solvent or polymeric binder, and where the imaging composition exhibits a reversible homogeneous-heterogeneous transition between a colorless state, an intermediate colorless or colored erasable state, and a final colored stable state, the photochromic material converting from the colorless state to the colored stable state upon irradiation with light of a first wavelength and converting from the colored stable state to the colorless state upon exposure to heat and light. | 12-18-2008 |
20080311490 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into said substrate, where the imaging layer includes a photochromic material dispersed in an ionomer, optionally with an additional polymeric binder, and where the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and optional light. | 12-18-2008 |
20080311491 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate, and an imaging layer coated on or impregnated into the substrate, wherein the imaging layer includes a photochromic ploymer, optionally dispersed in a polymeric binder or a phase change binder, the photochromic polymer including a polymer having at least one photochromic unit grafted therein, wherein the imaging layer exhibits a reversible transition between a colorless state and a colored state in response to heat and light and wherein the imaging layer does not exhibit a transition from the colored state to colorless state when heated in the absence of light. | 12-18-2008 |
20080311492 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into the substrate, where the imaging layer includes a photobase generator and a coupling agent. In the image forming medium, irradiation of the imaging layer cause the photobase generator to generate a base that reacts with the coupling agent to produce an image. | 12-18-2008 |
20080311493 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or inpregnated into said substrate, where the imaging layer includes a photochromic material and an optional intermolecular hydrogen bond stabilizer, dispersed in a polymeric binder, where the photochromic material reversibly forms intramolecular hydrogen bonds or reversibly forms intermolecular hydrogen bonds with the intermolecular hydrogen bond stabilizer, and thereby exhibits a reversible transition between a colorless state and a colored state in response to heat and light. | 12-18-2008 |
20080311494 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a paper substrate and an imaging layer coated on or impregnated into a paper substrate, where the imaging layer is formed of an imaging composition that includes an alkoxy substituted diarylethene photochromic material dissolved or dispersed in a solvent or polymeric binder, and where the imaging composition exhibits a reversible transition between a colorless and a colored state. | 12-18-2008 |
20080311495 | PHOTOCHROMIC MATERIAL, INKLESS REIMAGEABLE PRINTING PAPER, AND METHODS - An image forming medium includes a substrate and an imaging layer coated on or impregnated into said substrate, where the imaging layer includes as a photochromic material a spiropyran compound having a conjugated pathway, dispersed in a polymeric binder, wherein the photochromic material exhibits a reversible transition between a colorless state and a colored state in response to heat and light. | 12-18-2008 |
20080311496 | REIMAGEABLE PAPER PROTECTED AGAINST UV LIGHT - An image forming medium includes a substrate; an imaging layer including an imaging material coated on said substrate, wherein the imaging material exhibits a reversible transition between a colorless state and a colored state; and a protective layer over the imaging layer, the protection layer including dipolar molecules that can be reversibly switch between a UV light transmission state and a UV light absorption state, wherein the dipolar molecules in their random orientation absorb in substantially the same spectral region as the imaging material in its un-imaged state, and wherein the imaging layer is imageable by ultraviolet light when the dipolar molecules are in the UV light transmission state, but the imaging layer is substantially not imageable by ultraviolet light when the dipolar molecules are in the UV light absorption state. | 12-18-2008 |
20080311516 | INKLESS PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into the substrate, where the imaging layer includes a photobase generator and coupling agent. In the image forming medium, irradiation of the imaging layer causes the photobase generator to generate base that reacts with the coupling agent to produce an image. | 12-18-2008 |
20080311517 | INKLESS PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into the substrate, where the imaging layer includes a photoacid generator and an acid-base indicator. In the image forming medium, irradiation of the imaging layer causes the photoacid generator to generate an acid that reacts with the acid-base indicator to produce an image. | 12-18-2008 |
20080311518 | INKLESS PRINTING PAPER AND METHOD - An image forming medium includes a substrate and an imaging layer coated on or impregnated into the substrate, where the imaging layer includes a photobase generator and an acid-base indicator. In the image forming medium, irradiation of the imaging layer causes the photobase generator to generate a base that reacts with the acid-base indicator to produce an image. | 12-18-2008 |
20080311519 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate, and an imaging layer coated on or impregnated into said substrate, wherein the imaging layer includes an imaging composition including a photochromic or photochromic-thermochromic material dissolved or dispersed in a solvent or polymeric binder, wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of heat and light of a second wavelength such that simultaneous erase with heat and light of the second wavelength is faster than erase by heat alone and exhibits a reversible transition between a colorless and a colored state. | 12-18-2008 |
20080311521 | INKLESS REIMAGEABLE PRINTING PAPER AND METHOD - An image forming medium includes a substrate, and an imaging layer coated on or impregnated into said substrate, wherein the imaging layer includes an imaging composition including a photochromic or photochromic-thermochromic material dissolved or dispersed in a solvent or polymeric binder, wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of heat and light of a second wavelength such that simultaneous erase with heat and light of the second wavelength is faster than erase by heat alone and exhibits a reversible transition between a colorless and a colored state. | 12-18-2008 |
20090097898 | HAND HELD PHOTOCHROMIC MARKING IMPLEMENT - Disclosed is a hand-held photochromic marking implement including photochromic colorants and a solid phase colorant carrier which can be used in direct-to-media marking and a method of forming same. | 04-16-2009 |
20090128290 | INDIVIDUALLY UNIQUE HYBRID PRINTED ANTENNAE FOR CHIPLESS RFID APPLICATIONS - A method of printing chipless RFID tags with unique features, includes printing a RFID antenna pattern precursor using a first printing process, wherein the RFID antenna pattern precursor includes a plurality of disconnected wire segments; and printing a conductive ink using a second print process to interconnect at least two of the plurality of disconnected wire segments, to produce a final RFID antenna with a unique antenna geometry. | 05-21-2009 |
20090130299 | GALVANIC PROCESS FOR MAKING PRINTED CONDUCTIVE METAL MARKINGS FOR CHIPLESS RFID APPLICATIONS - A process for printing a metal wire pattern on a substrate, including: printing a first salt solution including a metal ion that will undergo a reduction half-reaction; printing a second salt solution containing an oxidizing agent that will undergo an oxidation half-reaction in contact with the first salt solution, resulting in the reduction of the metal ions of the first salt solution; and allowing the first and second salt solutions to react by a galvanic reaction, causing reduced metal ions of the first salt solution to precipitate as a solid, on the substrate. | 05-21-2009 |
20090142481 | AIR STABLE COPPER NANOPARTICLE INK AND APPLICATIONS THEREFOR - Low-cost copper nanoparticle inks that can be annealed onto paper substrate for RFID antenna applications, using substituted dithiocarbonates as stabilizers during copper nanoparticle ink production. | 06-04-2009 |
20090159176 | SEALING METHOD FOR CONTAINING MATERIALS - A method to seal cells includes providing a substrate having at least one cell, laminating a membrane onto the cells such that there is at least one aperture over each cell, introducing a functional material into each cell through the aperture, and sealing the apertures with a sealant that is self-supporting. A device has at least one cell having walls, a membrane forming a lid of the cell, having at least one aperture, a functional material in the cell, and a self-supporting sealant to seal the aperture. | 06-25-2009 |
20090200792 | DOCUMENT WITH INVISIBLE ENCODED INFORMATION AND METHOD OF MAKING THE SAME - A document includes a paper substrate having an average surface roughness of at least about 0.5 microns, wherein the paper substrate includes encoded information printed thereon, and wherein the encoded information is printed with an ink comprised of light absorbing material that absorbs light only at wavelengths below 350 nm and an optional clear binder in a solvent. The encoded information is substantially not detectable to a naked human eye through differential gloss or exposure to light having wavelengths of 365 nm or more, and is only revealed upon exposing the document to light having a wavelength at which the light absorbing material absorbs light, which is less than 350 nm. | 08-13-2009 |
20090212115 | SYSTEM FOR EMBEDDING MACHINE-READABLE INFORMATION WITH FLUORESCENT MATERIALS - Disclosed is a system for embedding and recovering machine readable information on a substrate, including an image forming device containing at least two fluorescent marking materials, wherein the image forming device receives data representative of the machine readable information, and forms an image corresponding to the data in a machine readable code format with the at least two fluorescent marking materials on the substrate, and a document reading device including a radiation emitting unit that emits radiation effecting fluorescence of a first fluorescent marking material and/or second fluorescent marking material, and a reader that detects the data in the image on the image receiving substrate while the first fluorescent marking material and/or second fluorescent marking material is fluorescing. | 08-27-2009 |
20090258156 | PHOTO-ERASABLE INK FOR FULL COLOR PRINTING - An ink compatibility including a dye and surface functionalized photocatalytically active semiconductor nanoparticles is provided. This ink composition enables the reuse of a print substrate, because the surface functionalized photocatalytically active semiconductor nanoparticles bleach the dye under an activating radiation. | 10-15-2009 |
20090274834 | BIMETALLIC NANOPARTICLES FOR CONDUCTIVE INK APPLICATIONS - A method of forming conductive features on a substrate from a solution of metal nanoparticles by providing a depositing solution and liquid depositing the depositing solution onto a substrate. The depositing solution is then heated to a temperature below about 140° C. to anneal the first and second nanoparticles and remove any reaction by-products. The depositing solution may be comprised of a mixture of first metal nanoparticles and second metal nanoparticles or a combination of first metal nanoparticles and a soluble second metal nanopartical precursor. Furthermore, the average diameter of the first metal nanoparticles is about 50 nm to about 100 μm and the average diameter of the second metal nanoparticles is about 0.5 nm to about 20 nm. | 11-05-2009 |
20090288517 | PHOTOCHEMICAL SYNTHESIS OF METALLIC NANOPARTICLES FOR INK APPLICATIONS - A method of forming an ink, including photochemically producing stabilized metallic nanoparticles and formulating the nanoparticles into an ink. | 11-26-2009 |
20090321676 | FERROMAGNETIC NANOPARTICLES WITH HIGH MAGNETOCRYSTALLINE ANISOTROPY FOR MICR INK APPLICATIONS - An ink including stabilized magnetic single-crystal nanoparticles, wherein the value of the magnetic anisotropy of the magnetic nanoparticles is greater than or equal to 2×10 | 12-31-2009 |
20090325098 | FERROMAGNETIC NANOPARTICLES WITH HIGH MAGNETOCRYSTALLINE ANISOTROPY FOR MICR TONER APPLICATIONS - A toner including stabilized magnetic single-crystal nanoparticles, wherein the value of the magnetic anisotropy of the magnetic nanoparticles is greater than or equal to 2×10 | 12-31-2009 |
20100009071 | BIMODAL METAL NANOPARTICLE INK AND APPLICATIONS THEREFOR - A bimodal metal nanoparticle composition includes first metal nanoparticles having an average diameter of from about 50 nm to about 1000 nm, and second stabilized metal nanoparticles having an average diameter of from about 0.5 nm to about 20 nm, the second stabilized metal nanoparticles including metal cores having a stabilizer attached to the surfaces thereof, wherein the stabilizer is a substituted dithiocarbonate. | 01-14-2010 |
20100071590 | SOLID PHASE CHANGE FLUORESCENT INK AND INK SETS - An ink set includes a plurality of inks, at least one ink but less than all inks of the ink set including an ink vehicle, colorant and fluorescence agent and remaining additional inks including an ink vehicle, colorant and free of fluorescence agent. At least a first ink grouping and a second ink grouping of the ink 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 ink grouping and the second ink 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 ink grouping as compared to the second ink grouping. | 03-25-2010 |
20100075241 | TONERS WITH FLUORESCENCE AGENT AND TONER SETS INCLUDING THE TONERS - 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. | 03-25-2010 |
20100083869 | FLUORESCENT NANOSCALE PARTICLES - A nanoscale pigment particle composition includes a fluorescent compound, such as a benzothioxanthene pigment, including at least one functional moiety, and a stabilizer compound including at least one functional group, wherein the functional moiety associates non-covalently with the functional group; and the presence of the associated stabilizer limits the extent of particle growth and aggregation, to afford nanoscale-sized particles. | 04-08-2010 |
20100086768 | PARTICLES WITH LIGHT ABSORBING MATERIAL FOR REIMAGEABLE MEDIUM - A plurality of particles including: (a) a binder; (b) a photochromic material; and (c) a light absorbing material. | 04-08-2010 |
20100086867 | TONER CONTAINING FLUORESCENT NANOPARTICLES - 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. | 04-08-2010 |
20100147686 | SYSTEMS AND METHODS FOR TRANSPORTING PARTICLES - Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described. | 06-17-2010 |
20100147687 | SYSTEMS AND METHODS FOR TRANSPORTING PARTICLES - Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described. | 06-17-2010 |
20100147691 | SYSTEMS AND METHODS FOR TRANSPORTING PARTICLES - Various particle transport systems and components for use in such systems are described. The systems utilize one or more traveling wave grids to selectively transport, distribute, separate, or mix different populations of particles. Numerous systems configured for use in two dimensional and three dimensional particle transport are described. | 06-17-2010 |
20100173239 | LOW MELT COLOR TONERS WITH FLUORESCENCE AGENTS - A low melt or ultra low melt toner includes at least one amorphous polyester of an alkoxylated bisphenol based polyester, a crystalline polyester derived from the reaction of an aliphatic dicarboxylic acid or aromatic dicarboxylic acid with an aliphatic diol, at least one colorant and at least one fluorescence agent. Methods of authentication of the toner, of authentication of documents formed from the toner, of embedding information in documents, and the like are also set forth. | 07-08-2010 |
20100216635 | REVERSE WRITE ERASABLE PAPER - An image-forming medium and methods for forming and imaging the medium are provided. The disclosed medium can be strongly colored under room illumination (or deliberate UV) and can be selectively discolored at an appropriate light wavelength to form an image. In one embodiment, the image-forming medium can include a substrate (e.g., a sheet of paper), a photochromic material incorporated with the substrate, and a photo-absorbing material incorporated with the photochromic material. Exemplary methods for using the image-forming medium to make a transient image can include first forming the image-forming medium by applying a coating solution containing photochromic material to the substrate or paper. The image-forming medium can have a medium color and can then be selectively exposed to a radiation through a mask to convert the photochromic material from a colored form to a colorless form and thus to form an image having a color contrast with its background. | 08-26-2010 |
20100227270 | REUSABLE PAPER MEDIA WITH COMPATIBILITY MARKINGS AND PRINTER WITH INCOMPATIBLE MEDIA SENSOR - A reusable image forming medium, including a substrate; an imaging layer coated on or impregnated into the substrate, wherein an irradiation of the imaging layer produces an image; and a signature material coated on or impregnated into the substrate or the imaging layer, the signature material being detectable by a sensor. | 09-09-2010 |
20100227760 | REIMAGEABLE AND REUSABLE MEDIUM AND METHOD OF PRODUCING AND USING THE REIMAGEABLE AND REUSABLE MEDIUM - The present disclosure provides a reusable and reimageable medium including a substrate coated with a photochromic polymer. The photochromic polymer has a glass transition temperature ranging from 30° C. to 150° C., such as from about 30° C. to about 100° C., and the coated substrate converts to a colored state when both UV light and temperatures ranging from 30° C. up to 100° C. are applied to the coated substrate. The present disclosure also provides a method for producing and using the reusable and reimageable medium. | 09-09-2010 |
20110056282 | SENSORS AND METHODS FOR DETERMINING WHETHER AN ITEM HAS BEEN EXPOSED TO AN ENVIRONMENTAL CONDITION - 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. | 03-10-2011 |
20110082035 | PHOTOCHROMIC MATERIALS INCORPORATED IN POLYMER BACKBONE - Exemplary embodiments provide compositions and methods for making and using an erasable medium that can include a photochromic layer disposed over a substrate. The photochromic layer can include one or more photochromic molecule-polymer systems, wherein each of the one or more photochromic molecule-polymer systems can include a photochromic molecule covalently bonded within a polymer main chain, the photochromic molecule including one or more photochromic moieties (PM) linked together via a linker. | 04-07-2011 |
20110092364 | OLIGOMERIC SPIROPYRANS FOR ERASABLE MEDIUM APPLICATIONS - Exemplary embodiments provide compositions and methods for making and using an erasable medium that can contain oligomeric photochromic materials such as spiropyran oligomers, wherein the oligomeric photochromic material can include a plurality of photochromic groups such as spiropyrans covalently connected together by one or more linkers. | 04-21-2011 |
20110130279 | ERASABLE MEDIA WITH BINDER - Exemplary embodiments provide compositions and methods for an erasable medium that can include a photochromic composite containing a photochromic polymer dispersed in a polymer binder, a similar type polymer of a backbone portion of the photochromic polymer. | 06-02-2011 |
20110143274 | TONER PROCESSES - The present disclosure provides toners and processes for making said toners. In embodiments, the toners are invisible when viewed under natural light, but possess a UV emitter that renders them visible when exposed to UV light of a specific wavelength. By selecting the appropriate UV emitter and utilizing an ionic crosslinker, the gloss of the toner may be tailored to match the gloss of any substrate, such as paper, to which the toner is to be applied, thereby further enhancing its invisibility under visible light. | 06-16-2011 |
20110143278 | TONER PROCESSES - The present disclosure provides toners and processes for making said toners. In embodiments, the toners are invisible when viewed under natural light, but possess a fluorescent agent that renders them visible when exposed to UV light of a specific wavelength. In other embodiments the toners have a color under natural light, and a different color when exposed to UV light. | 06-16-2011 |
20110157267 | REUSABLE PAPER MEDIA WITH COMPATIBILITY MARKINGS AND PRINTER WITH INCOMPATIBLE MEDIA SENSOR - A reusable image forming medium, including a substrate; an imaging layer coated on or impregnated into the substrate, wherein an irradiation of the imaging layer produces an image; and a signature material coated on or impregnated into the substrate or the imaging layer, the signature material being detectable by a sensor. | 06-30-2011 |
20110215283 | PHOTOCHROMIC POLYMER WITH BINDER - The present disclosure relates to the process of making a photochromic composite having a photochromic polymer and a binder polymer. The photochromic polymer is made by solution polymerization of the photochromic monomer and two monomers in the presence of a base and the binder polymer is made by solution polymerization of the two monomers in the presence of a base. | 09-08-2011 |
20110281104 | NON-STICKY ERASABLE MEDIA WITH OVERCOAT - Exemplary embodiments provide an erasable medium having an overcoat layer on a photochromic layer to provide a non-adhesive surface for the erasable medium when exposed to high temperatures, wherein the overcoat layer can include a latex or a mixture of a latex and a wax. | 11-17-2011 |
20110281482 | NOVEL LOWER COST REUSABLE POLYMER BINDER - Exemplary embodiments provide compositions for erasable media and methods of forming polymers for erasable media. The method can include providing a first monomer, the first monomer including one or more alkoxylated bisphenols and adding at least one second monomer and a catalyst to the first monomer to form a mixture at a first temperature, the second monomer selected from the group consisting of an organic diacid, a dialkyl ester of the organic diacid, and combinations thereof. The method can also include melt condensing the mixture by increasing the temperature from the first temperature to a second temperature over a first amount of time to form one or more polymers, wherein the one or more polymers has an acid value in the range of about 0.1 mg-KOH to about 12 mg-KOH. | 11-17-2011 |
20120038718 | STABILIZED PHOTOCHROMIC INK FOR REUSABLE PAPER ANNOTATION - Provided are ink compositions, methods for making photochromic inks, and methods of using the photochromic inks for erasable media annotation. In accordance with various embodiments, there is an ink composition including a carrier medium and one or more photochromic species in the carrier medium, wherein each of the one or more photochromic species can be selected from the group consisting of monomeric photochromic molecules, photochromic oligomers, and photochromic polymers, and wherein each one of the one or more photochromic species exhibits a reversible transition from a colorless state to a colored state upon exposure to a radiant condition wherein the radiant condition can be selected from the group consisting of a radiant energy and a combination of a radiant energy and thermal energy. | 02-16-2012 |
20120237865 | TONERS WITH FLUORESCENCE AGENT AND TONER SETS INCLUDING THE TONERS - 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. | 09-20-2012 |