Fluoran Or Derivative Containing Patents (Class 106/31.22)
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Patent number: 8791045Abstract: The invention describes a color-developing composition that contains at least three major components: (1) a leuco dye or a combination of leuco dyes, (2) an color-developer or a combination of color-developers that can form colored complexes with the leuco dyes, and (3) a desensitizer to temporarily remove the effect of the developer so the leuco dye appears in its colorless form. An optional binder may be included so that the composition may be applied to a substrate as an ink. The ink composition may be applied to synthetic polymeric substrates and other substrates that are incorporated into absorbent articles or personal care products.Type: GrantFiled: November 9, 2011Date of Patent: July 29, 2014Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ning Wei, Xuedong Song, JinHo Ryu, JunMo Gil
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Patent number: 8506695Abstract: Coating compositions and industrial packages including the coating compositions are disclosed.Type: GrantFiled: October 25, 2006Date of Patent: August 13, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Molly L. Hladik, Mehrgan Khavari, Cari L. Dorsh
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Publication number: 20130116644Abstract: The invention describes a color-developing composition that contains at least three major components: (1) a leuco dye or a combination of leuco dyes, (2) an color-developer or a combination of color-developers that can form colored complexes with the leuco dyes, and (3) a desensitizer to temporarily remove the effect of the developer so the leuco dye appears in its colorless form. An optional binder may be included so that the composition may be applied to a substrate as an ink. The ink composition may be applied to synthetic polymeric substrates and other substrates that are incorporated into absorbent articles or personal care products.Type: ApplicationFiled: November 9, 2011Publication date: May 9, 2013Inventors: Ning Wei, Xuedong Song, JinHo Ryu, JunMo Gil
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Patent number: 7807607Abstract: There are described novel rhodamine color-forming compounds. The rhodamine color-forming compounds exhibit a first color when in a crystalline form and a second color, different from the first color, when in an amorphous form. Thermal imaging members containing these color-formers are also described.Type: GrantFiled: December 23, 2008Date of Patent: October 5, 2010Assignee: Zink Imaging, Inc.Inventors: Kap-Soo Cheon, Michael P. Filosa, Fariza Hasan, Xavier Herault, John L. Marshall
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Patent number: 7569515Abstract: An erasable image forming material includes a color former containing crystal violet lactone, a developer, a first binder resin of styrene-butadiene copolymer and a second binder resin of a styrene-based resin containing ?-methylstyrene, the first and second binder resins being in a compatible state.Type: GrantFiled: February 15, 2008Date of Patent: August 4, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Takayama, Kenji Sano, Takeshi Gotanda, Yumiko Sekiguchi
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Patent number: 7329630Abstract: Compositions and methods for production of color images having increased light stability and reduced browning are described. The color forming composition can include a leuco dye, an infrared absorber, and at least one of a stabilizer and an anti-fade agent. The color forming compositions can be stabilized such that less than about a 30% decrease in optical density occurs over a three year period. The stabilizers can include chroman, thiolane-nickel complexes, spiroindanes, while suitable anti-fade agents can include vitamin E, vitamin E analogs, astaxanthin, chroman, ascorbic acid, carotene, and mixtures thereof. The color forming compositions are ambient light stable and are useful in forming images on a wide variety of substrates such as optical disks.Type: GrantFiled: September 5, 2003Date of Patent: February 12, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventor: Makarand P. Gore
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Publication number: 20070270310Abstract: In one aspect, a method includes directing electromagnetic radiation to a structure, the structure including a substrate, a first layer, and a marking composition between the substrate and the first layer. At least a portion of the electromagnetic radiation is transmitted through the first layer, and the structure is marked.Type: ApplicationFiled: May 22, 2006Publication date: November 22, 2007Inventors: David H. Blank, Benjamin J. Brown, Michael P. Secord, James W. Foley
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Publication number: 20070245925Abstract: A no-mess water-based ink including a composition including water, an organic solvent, a coloring agent dissolved in the organic solvent, an emulsifier and a thickening agent for use in conjunction with a specially treated substrate containing a color developer.Type: ApplicationFiled: August 3, 2006Publication date: October 25, 2007Inventors: Jie Li, Leena Vadaketh, Jacqueline Aseng
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Patent number: 7276465Abstract: An erasable image forming material includes a color former, a developer, and a binder resin, the color former containing Crystal Violet Lactone and a specific fluorane compound can enhance light fastness as well as heat decolorizing performance.Type: GrantFiled: November 4, 2005Date of Patent: October 2, 2007Assignee: Kabushiki Kaisha ToshibaInventors: Satoshi Takayama, Kenji Sano, Takeshi Gotanda
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Patent number: 7060654Abstract: A coating includes an antenna uniformly distributed in both a matrix and a leuco-dye phase of the coating. A method for preparing an imaging material includes providing a powder having an activator and an antenna, dissolving the activator/antenna powder to form an activator/matrix pre-polymer solution, providing a leuco-dye alloy, and dispersing the leuco-dye alloy into the activator/matrix pre-polymer solution to form a radiation-curable paste. An image-recording medium includes a matrix having an antenna and an activator, and an alloy dispersed in the matrix as an independent phase. The alloy includes an antenna, a leuco-dye, and an accelerator.Type: GrantFiled: October 28, 2003Date of Patent: June 13, 2006Assignee: Hewlett-Packard Development CompanyInventors: Vladek P Kasperchik, Makarand P. Gore, Marshall Field, Jayprakash Bhatt
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Patent number: 6635602Abstract: A process for the manufacture of mixtures of fluoran compounds by the reaction of keto acids of formula (II) with a compound of formula (III) in the presence of a dehydrating condensation agent, wherein R1 and R2 independently represent hydrogen; an alkyl of 1-18 carbon, a secondary alkyl with respect to the carbon atom bonded to the nitrogen atom of 3-13 carbon atoms, a cycloalkyl of 4-8 carbon atoms or a phenyl, both of which may be substituted by at least one substituted selected from the group consisting of halogen atoms and alkyls having 1-4 carbon atoms, an aralkyl of 7-10 carbon atoms; or R1 and R2, together with the adjacent nitrogen atom from a heterocyclic ring; R3 is hydrogen, an alkyl of 1-4 carbon atoms, an alkoxy of 1-4 carbon atoms, a phenyl; a substituted phenyl or a halogen; R4 is an alkyl group of 1-18 carbon atoms, a carboxyalkyl of 1-18 carbon atoms, a carboxycycloalkyl of 4-8 carbon atoms, an alkylamino of 1-18 carbon atoms, a cycloalkylamino of 4-8 carbon atoms, a dialkylamino or dicycloType: GrantFiled: February 26, 2001Date of Patent: October 21, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: James Philip Taylor, Michael Heneghan
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Patent number: 6566302Abstract: A monophase solid solution comprising a plurality of color formers selected from the group consisting essentially of the fluoran type, phthalide type, phenoxazine type, phenothiazine type, rhodamine lactam type, leuco-auramine type, triphenylmethane type, spiropyran type, benzoxazine type, quinazoline type of color formers and mixtures thereof, preferably wherein the color forming materials are selected from the fluoran and phthalide type of color former and mixtures thereof.Type: GrantFiled: February 26, 2001Date of Patent: May 20, 2003Assignee: Ciba Specialty Chemicals CorporationInventors: James Philip Taylor, Michael Heneghan
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Patent number: 6217643Abstract: A color former composition which is composed of a mixture of the color formers 3-diethylamino-6-methyl-7-(2′,4′-dimethylanilino)fluoran and 3-dibutylamino-6-methyl-7-anilinofluoran in defined amounts. Further compositions contain mixtures of color formers including one or both of these fluoran compounds and the color formers 3-dibutylamino-6-methyl-7-anilinofluoran and/or 3-diethylamino-6-methyl-7-(3′-methylanilino)fluoran. Microcapsules containing the color former compositions can be prepared from a composition which also contains an organic solvent and can be used to prepare a pressure sensitive or thermal recording material. The mixture of color formers can provide a higher concentration in various organic solvents and/or can be used with less expensive solvents.Type: GrantFiled: February 7, 2000Date of Patent: April 17, 2001Assignees: ESCO Company, Yamamoto Chemicals, Inc.Inventors: Francis R. Kearney, Sean L. Daly, Darrel E. Cardy