Synthetic Resin Capsule Walls Patents (Class 503/215)
  • Patent number: 10286708
    Abstract: A laser markable composition includes (a) an aqueous medium; (b) capsules composed of a polymeric shell surrounding a core; (c) a color developing agent or color developing agent precursor; and (d) an optothermal converting agent; characterized in that the core of the capsule contains a leuco dye.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 14, 2019
    Assignee: AGFA-GEVAERT
    Inventors: Fabienne Goethals, Johan Loccufier, Dirk Kokkelenberg, Lionel Petton
  • Patent number: 10168307
    Abstract: Color change compositions that transition from a first to second color state upon application of an applied stimulus are provided. Also provided are substrates having the compositions on a surface thereof, as well as methods of making and using the compositions.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: January 1, 2019
    Assignee: Segan Industries, Inc.
    Inventor: Hans O. Ribi
  • Patent number: 9085192
    Abstract: A microencapsulated pigment including a leuco dye system is incorporated as one or more layers in a roll of adhesive tape. The tape is applied and may be rubbed by hand or another object to induce a color change. The change may serve as an indicator that the tape is well adhered for masking purposes in a painting operation, or to present a design where only selected portions of the tape are rubbed to induce the color change. The microencapsulated pigment may be constructed so that the color change is irreversible or reversible.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: July 21, 2015
    Assignee: Chromatic Technologies, Inc.
    Inventors: Terrill Scott Clayton, Timothy J. Owen, Patrick Edson
  • Patent number: 8912119
    Abstract: Masking tapes that changes color when the tape is rubbed down or dispensed onto an adherend and methods of making such tapes are disclosed herein. The tape includes a backing, a layer of adhesive on the bottom surface of the backing, and a release structure on the top surface of the backing that includes a pressure-chromic indicator and a release layer. The pressure-chromic indicator is characterized in that it is not activated by the pressure applied during the manufacturing process, but is activated by the pressure applied when the tape is rubbed or dispensed onto an adherend.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: December 16, 2014
    Assignee: Intertape Polymer Corp.
    Inventors: John K. Tynan, Jr., James Apap Bologna
  • Patent number: 8889590
    Abstract: An irreversible thermochromic ink composition can include thermochromic pigment capsules dispersed in a carrier. The irreversible thermochromic pigment capsules can include an inner core having a color changing dye, a color activator for activating the color changing dye, and a wax, an outer core surrounding the inner core and comprising a color destroying agent, and a shell surrounding the outer core. Alternatively, the irreversible thermochromic pigment capsules can include an inner core having a color destroying agent and a wax, an outer core surrounding the inner core and comprising a color changing dye and a color activator for activating the color changing dye, and a shell surrounding the outer core. Written marks made with the irreversible thermochromic inks can be rendered a different color or substantially colorless by application of a sufficient amount of heat to melt or substantially liquefy the wax in the irreversible thermochromic pigment capsules.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: November 18, 2014
    Assignee: Sanford, L.P.
    Inventor: Wing Sum Vincent Kwan
  • Patent number: 8859288
    Abstract: Methods to produce pH-sensitive microparticles that have an active agent dispersed in a polymer matrix have certain advantages over microcapsules with an active agent encapsulated in an interior compartment/core inside of a polymer wall. The current invention relates to pH-sensitive microparticles that have a corrosion-detecting or corrosion-inhibiting active agent or active agents dispersed within a polymer matrix of the microparticles. The pH-sensitive microparticles can be used in various coating compositions on metal objects for corrosion detecting and/or inhibiting.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: October 14, 2014
    Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Wenyan Li, Jerry W. Buhrow, Scott T. Jolley, Luz M. Calle
  • Patent number: 8664156
    Abstract: An irreversible thermochromic ink composition can include thermochromic pigment capsules dispersed in a carrier. The irreversible thermochromic pigment capsules can include an inner core having a color changing dye, a color activator for activating the color changing dye, and a wax, an outer core surrounding the inner core and comprising a color destroying agent, and a shell surrounding the outer core. Alternatively, the irreversible thermochromic pigment capsules can include an inner core having a color destroying agent and a wax, an outer core surrounding the inner core and comprising a color changing dye and a color activator for activating the color changing dye, and a shell surrounding the outer core. Written marks made with the irreversible thermochromic inks can be rendered a different color or substantially colorless by application of a sufficient amount of heat to melt or substantially liquefy the wax in the irreversible thermochromic pigment capsules.
    Type: Grant
    Filed: December 31, 2011
    Date of Patent: March 4, 2014
    Assignee: Sanford, L.P.
    Inventor: Wing Sum V. Kwan
  • Patent number: 8314050
    Abstract: A material for pressure measurement is provided, the material having a substrate made of plastic, a color forming agent layer containing a colorless electron-donating dye precursor and a color developing agent layer containing an electron-accepting compound, the material for pressure measurement forming a color utilizing a color forming reaction between the colorless electron-donating dye precursor and the electron-accepting compound, wherein the colorless electron-donating dye precursor is included in a microcapsule containing an urethane bond, wherein at least one kind of the electron-accepting compound is a metal salt of salicylic acid having a substituent, and wherein the microcapsule satisfies a relation ?/D=from 1.0×10?3 to 2.0×10?2, where ? is a number-average wall thickness (?m) of the microcapsules, and D is a median diameter (?m) of microcapsules on a volume basis.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: November 20, 2012
    Assignee: FUJIFILM Corporation
    Inventor: Masanobu Takashima
  • Patent number: 8283284
    Abstract: The present invention presents a thermosensitive recording medium having an excellent color developing property, water resistance and preservation properties (such as anti-self-color-development) and is harmless to the environment. The present invention is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored basic leuco dye and an electron accepting developing agent on a substrate, wherein the thermosensitive recording layer further comprises a resin containing a carboxyl group, an epichlorohydrin resin and a polyamine/amide resin. This thermosensitive recording medium is suitable for recording with a low applied energy.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: October 9, 2012
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Kenji Hirai, Akihito Ogino
  • Publication number: 20120100988
    Abstract: A note pad includes: a stack of carbonless note sheets each of which includes: a substrate; and a color-developing coating layer formed on an upper surface of the substrate, and including a plurality of microcapsules and a carbonless color-developing material, each of the microcapsules encapsulating a reactive dye and being breakable, when subjected to a pressure, to release the reactive dye to react with the carbonless color-developing material for color development.
    Type: Application
    Filed: March 1, 2011
    Publication date: April 26, 2012
    Applicant: TAIWAN HOPAX CHEMICALS MFG. CO., LTD.
    Inventors: Tsung-Tien KUO, Jen-Rong LIU, Hsien-Min KUO, Tsun-Rung HSU
  • Patent number: 8163670
    Abstract: To provide a thermal recording medium, which can realize easy maintenance, does not produce wastes such as cartridges, and can realize easy control of recording sheets, and an apparatus and method for image formation. [MEANS FOR SOLVING PROBLEMS]A high-temperature color development capsule (23), a low-temperature color development capsule (27), and a low-temperature color development suppression capsule (28) are incorporated in a recording sheet (10). In a printer, the low-temperature color development capsule (27) is subjected to low-temperature color development and is then pressed to break the low-temperature color development suppression capsule (28), whereby low-temperature color development is fixed. Thereafter, the high-temperature color development capsule (23) is subjected to high-temperature color development.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: April 24, 2012
    Assignee: Alps Electric Co., Ltd
    Inventor: Hiroyasu Miyata
  • Publication number: 20110065576
    Abstract: The present invention provides a laser-sensitive coating composition comprising titanium dioxide in the anatase form or polymeric particles comprising a polymeric matrix comprising one or more water-insoluble polymers and titanium dioxide in the anatase form encapsulated in the polymeric matrix, and a polymeric binder. The present invention also provides a process for the preparation of the compositions, processes for preparing substrates coated with the coating compositions, substrates coated with the compositions, processes for marking the substrates coated with the compositions, and marked substrates obtainable by the latter processes.
    Type: Application
    Filed: August 12, 2008
    Publication date: March 17, 2011
    Applicant: CIBA CORPORATION
    Inventors: Jonathan Campbell, Marc Mamak, Clifford John Coles
  • Patent number: 7807076
    Abstract: An improved process for the preparation of microcapsules consisting essentially of a wall material and a core material in condensing a melamine-formaldehyde precondensate and/or methyl ethers thereof in an aqueous dispersion of a water-insoluble core material and in the presence of an acrylic acid/acrylamide copolymer at acidic pH and at a temperature in the range of from 20° to 100° C., and hardening thereafter the melamine-formaldehyde precondensate to form the walls of the microcapsules at an elevated temperature, wherein the core material is dispersed in the precondensate/copolymer solution without initial partial condensation of the precondensate and copolymer and wherein the hydrophobe point of the precondensate and/or its methyl esters is less than 90° C., as well as microcapsules, paper and pressure-sensitive recording material comprising such microcapsules.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: October 5, 2010
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Ann Hunt, Robert Montgomery O'Neil
  • Patent number: 7651975
    Abstract: The present invention is a thermally sensitive recording medium containing a thermally sensitive color developing layer containing a colorless or pale colored basic leuco dye and a color-developing agent as the main components on a substrate, wherein the thermally sensitive recording layer contains an acrylic polymer obtained by the copolymerization of an alkyl acrylate, alkyl methacrylate and vinylsilane as monomer components and a colloidal. Further, the present invention is a thermally sensitive recording medium, wherein the colloidal silica possesses a chain structure.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: January 26, 2010
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Takashi Date, Junpei Natsui, Yoshimi Midorikawa, Tatsuo Nagai, Yoshihide Kimura
  • Publication number: 20090186759
    Abstract: A thermochromic material mainly includes a fabric base, a thermosensitive coating layer formed by printing thermochromic paint on at least one portion of a surface of the fabric base, and a film layer adhered to a surface of the thermosensitive coating layer. The film layer is formed by fusing and mixing a thermoplastic polyurethane (TPU) material and an UV-cut material to obtain a fused material and then printing the fused material in a sheet-like manner. The film layer has a thickness ranging from 0.08 mm to 3 mm.
    Type: Application
    Filed: January 22, 2008
    Publication date: July 23, 2009
    Inventor: Ping-Kun Lin
  • Publication number: 20090005244
    Abstract: An image receptive medium comprising a semi-translucent polymer containing semi-translucent particulate capable of attenuating visible light and imparting color or haze is disclosed. The image receptive medium includes an image receiving layer containing particulate with various light attenuating properties. The image receiving layer can receive a dye through sorption or diffusion. The attenuating properties of the particulate act to enhance the quality of the image by obscuring background and scattering light to illuminate the dye. The result is a durable image requiring only a single layer which is highly visible on opaque, clear, or colored substrates.
    Type: Application
    Filed: May 1, 2007
    Publication date: January 1, 2009
    Inventor: Paul Ramsden
  • Publication number: 20080103042
    Abstract: Coating compositions and industrial packages including the coating compositions are disclosed.
    Type: Application
    Filed: October 25, 2006
    Publication date: May 1, 2008
    Inventors: Molly L. Hladik, Mehrgan Khavari, Cari L. Dorsh
  • Patent number: 7335624
    Abstract: A reversible thermochromic display article which comprises a substrate and, formed thereon, a heat coloration image containing a heat coloration type reversible thermochromic composition which is colored by heating and is decolored by cooling and a heat decoloration image containing a heat decoloration type reversible thermochromic composition which is decolored by heating and is colored by cooling, or having a multilayer structure comprising a heat coloration layer containing the heat coloration type reversible thermochromic composition and a heat decoloration layer containing the heat decoloration type reversible thermochromic composition, wherein the heat coloration type reversible thermochromic composition is a microcapsule composition which contains, enclosed therein, (a) an electron-donating chromatic organic compound, (b)? an electron-accepting compound selected from gallic acid esters, and (c) a reaction medium having a melting point lower than 50° C.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: February 26, 2008
    Assignee: The Pilot Ink Co., Ltd.
    Inventors: Kuniyuki Senga, Katsuyuki Fujita, Shigehiro Koide
  • Patent number: 7279443
    Abstract: A direct thermographic material has one or more thermographic layers comprising a film-forming polymer binder on a polymeric support. The binder for at least one thermographic layer comprises a hydrophobic, organic soluble binder that is a polyvinyl acetal having a degree of polymerization greater than 650 and less than 2500.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: October 9, 2007
    Assignee: Carestream Health, Inc.
    Inventors: Takuzo Ishida, David G. Baird, Raymond J. Kenney
  • Patent number: 7276465
    Abstract: 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: Grant
    Filed: November 4, 2005
    Date of Patent: October 2, 2007
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Satoshi Takayama, Kenji Sano, Takeshi Gotanda
  • Patent number: 7270928
    Abstract: The present invention provides an isocyanate composition including an adduct of a multifunctional isocyanate compound having two or more isocyanate groups in the molecule thereof with a polymer obtained by radically polymerizing in the presence of a chain transfer agent having active hydrogen at least a vinyl monomer including a polymerizable compound having a polyether represented by the following Formula (I): A1-(L-O)n-B1 ??Formula (I) wherein A1 represents a group having an ethylenically unsaturated double bond; L represents an alkylene group; B1 represents an alkyl group or an aryl group; and n is an average polymerization degree of the polyether and represents a number of 8 to 300.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: September 18, 2007
    Assignee: Fujifilm Corporation
    Inventors: Takashi Tamura, Koreshige Ito
  • Patent number: 7235512
    Abstract: The present invention provides a heat-sensitive recording material comprising a substrate; and at least two heat-sensitive recording layers provided on the substrate, the heat-sensitive recording layers including microcapsules encapsulating an electron-donating dye precursor, and an electron-accepting compound, which reacts with the electron-donating dye precursor to develop a color and is disposed outside of the microcapsules, wherein the microcapsules include at least two kinds of microcapsules having different glass transition temperatures. A difference between each of the glass transition temperatures of the at least two microcapsules having different glass transition temperatures is preferably in a range from 20° C. to 70° C. According to the invention, a heat-sensitive recording material, which is superior in the reproduction of the gradation of an image and enables recording at high density, is obtained.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: June 26, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroshi Kamikawa
  • Patent number: 7176162
    Abstract: The present invention provides a heat-sensitive recording material including a support having disposed thereon a heat-sensitive recording layer containing microcapsules in which an electron-donating dye precursor is encapsulated and outside which an electron-accepting compound is present, the electron-donating dye precursor being capable of reacting with the electron-accepting compound to develop color, wherein the microcapsules include at least two kinds of microcapsules having mutually different volume average particle diameters or different glass transition temperatures. A difference between each of the glass transition temperatures of the at least two microcapsules having different glass transition temperatures is preferably in a range from 20° C. to 70° C. According to the invention, a heat-sensitive recording material, which is superior in the reproduction of the gradation of an image and enables recording at high density, is obtained.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: February 13, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroshi Kamikawa
  • Patent number: 7122503
    Abstract: The present invention teaches an improved process for preparing a population of microcapsules having a substantially uniform size distribution, especially useful for manufacture of carbonless paper. The improved process teaches use of membrane material having a pre-selected pore size in the capsule manufacture process. A core material is provided along with a receiving solution for receiving the core material. The receiving solution is a nonsolvent for the core material. The core material is passed under pressure through the membrane into a moving or turbulent receiving solution forming uniform droplets of core material dispersed in the receiving solution. Wall-forming material is added to the receiving solution for coating the core material droplets. The coating on the droplets is polymerized forming microcapsules. This novel process also lends itself to microcapsule formation in a continuous process.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: October 17, 2006
    Assignee: Appleton Papers Inc.
    Inventors: Troy Ronald Seehafer, George Arthur Stahler
  • Patent number: 7022823
    Abstract: The present invention relates to a diazonium salt represented by the following general formula (1) and a synthesizing method thereof, as well as a recording material using the diazonium salt. In general formula (1), R1 represents a hydrogen atom, an alkyl group or an aryl group. R2 represents an alkyl group or an aryl group. Each of R3, R4, R5 and R6 independently represents a hydrogen atom or a monovalent substituent. Here, at least one of R3, R4, R5 and R6 represents —N2+X?. X? represents an anion.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: April 4, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kimiatsu Nomura, Hisato Nagase, Yasuhiro Mitamura
  • Patent number: 7011922
    Abstract: The present invention provides a thermal recording material comprising a support and at least a thermal recording layer disposed on the support, wherein at least one of the thermal recording layer includes, together with an electron donating colorless dye, at least an electron accepting compound represented by the following general formula (1). R1 and R2 each independently represents a hydrogen atom, an alkyl group or an aryl group; and Ar is represented by the following general formula (2). In the general formula (2), R11 to R14 each independently represents a hydrogen atom, an alkyl group with 1 to 4 carbon atoms or an aryl group.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: March 14, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazumori Minami, Hisao Yamada, Hiroshi Sato
  • Patent number: 6964836
    Abstract: A process for forming photosensitive microcapsules having discrete capsule walls comprising the steps of forming an emulsion of an oily core material in a continuous aqueous phase containing a carboxyvinyl polymer and enwrapping particles of the oily core material in an amine-formaldehyde condensation product produced by in situ condensation of an amine and formaldehyde wherein the carboxyvinyl polymer comprises a crosslinked polymer of acrylic acid is disclosed.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: November 15, 2005
    Assignee: Eastman Kodak Company
    Inventors: Ibrahim Katampe, Alexander Y. Polykarpov, Joseph C. Camillus
  • Patent number: 6953645
    Abstract: The present invention relates to a nanocapsule composition and its toner composition for thermosensitive rewritable recording media, more particularly to a core/shell-type nanocapsule composition for thermosensitive rewritable recording media, which has fine capsule of a few nanometers in size and superior recording property and heat stability, a preparation method thereof and its toner composition for thermosensitive rewritable recording media. The toner composition according to the present invention is suitable for high-resolution electrostatic image toner, paper and film. Also, it enables reuse of recording media because the recording is erased when the media (e.g.: paper and OHP film) is heated to a high temperature.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: October 11, 2005
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Eun Kyoung Kim, Young Soon Kim, Soo Kyung Kim
  • Patent number: 6890879
    Abstract: The present invention provides a recording material comprising a support, a recording layer provided on the support, and at least one protective layer provided on the recording layer, wherein, the recording layer contains a coloring component A encapsulated in heat-responsive microcapsules, and a substantially colorless compound B, which is outside the heat-responsive microcapsules and has a coloring site that colors when reacted with the coloring component A, and wherein, at least one of the protective layer or a layer adjacent thereto comprises a layer containing titanium oxide.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: May 10, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Nagata, Shintaro Washizu
  • Patent number: 6890880
    Abstract: A heat-sensitive recording material includes a support having disposed thereon a heat-sensitive layer including microcapsules, which contain an achromic or hypochromic electron-donating dye precursor, and a developer, wherein the microcapsules contain at least one metal compound.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: May 10, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisao Yamada, Naoto Yanagihara, Kazumori Minami
  • Patent number: 6890592
    Abstract: The present invention teaches an improved process for preparing a population of microcapsules having a substantially uniform size distribution, especially useful for manufacture of carbonless paper. The improved process teaches use of membrane material having a pre-selected pore size in the capsule manufacture process. A core material is provided along with a receiving solution for receiving the core material. The receiving solution is a nonsolvent for the core material. The core material is passed under pressure through the membrane into a moving or turbulent receiving solution forming uniform droplets of core material dispersed in the receiving solution. Wall-forming material is added to the receiving solution for coating the core material droplets. The coating on the droplets is polymerized forming microcapsules. This novel process also lends itself to microcapsule formation in a continuous process.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: May 10, 2005
    Assignee: Appleton Papers Inc.
    Inventors: Troy Ronald Seehafer, George Arthur Stahler
  • Patent number: 6869908
    Abstract: The invention provides a thermal recording material, which includes at least one recording layer containing an electron donating dye precursor and an electron accepting compound, and additionally, the recording layer includes a polymerizable compound having an ethylenic unsaturated bond.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: March 22, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shiki Ueki, Kazumori Minami
  • Patent number: 6869907
    Abstract: In a color image-forming medium, a substrate is coated with a color-developing layer which is composed of at least one kind of heat-sensitive color-developing component, and a plurality of pressure-sensitive microcapsules. Each of the pressure-sensitive microcapsules is filled with a dye exhibiting a first single-color, and features a pressure/temperature characteristic to be broken when being subjected to a predetermined pressure within a first temperature range. The heat-sensitive color-developing component features a thermal color-developing characteristic to develop a second single color within a second temperature range defined by a first critical temperature and a second temperature. The first critical temperature is in the first temperature range, and the second critical temperature exceeds an upper limit temperature of the first temperature range.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: March 22, 2005
    Assignee: PENTAX Corporation
    Inventor: Minoru Suzuki
  • Patent number: 6797670
    Abstract: The invention relates to microcapsules for which the walls comprise reaction products of polyisocyanates, guanidine compounds, and optionally amines, wherein the polyisocyanates have an isocyanurate content of at least 30% by weight, based on polyisocyanate, and the walls comprise on average less than 9% by weight, based on the total weight of the microcapsule.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: September 28, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Martin Kleban, Günter Klug, Jürgen Weisser
  • Publication number: 20040186019
    Abstract: The present invention provides a heat-sensitive recording material including a support having disposed thereon a heat-sensitive recording layer containing microcapsules in which an electron-donating dye precursor is encapsulated and outside which an electron-accepting compound is present, the electron-donating dye precursor being capable of reacting with the electron-accepting compound to develop color, wherein the microcapsules include at least two kinds of microcapsules having mutually different volume average particle diameters or different glass transition temperatures. A difference between each of the glass transition temperatures of the at least two microcapsules having different glass transition temperatures is preferably in a range from 20° C. to 70° C. According to the invention, a heat-sensitive recording material, which is superior in the reproduction of the gradation of an image and enables recording at high density, is obtained.
    Type: Application
    Filed: December 24, 2003
    Publication date: September 23, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Hiroshi Kamikawa
  • Patent number: 6759368
    Abstract: A thermally imageable element can be imaged using heat alone without the need for photosensitivity or post-imaging processing. The element contains image-forming chemistry that comprises i) image precursor chemistry and ii) a catalyst or a catalyst precursor that upon imagewise heating is capable of promoting thermally induced image formation with the image precursor chemistry. The image-forming chemistry i) and ii) components are in reactive association and uniformly dispersed or dissolved within a binder in one or more layers of the element. Thus, the element is capable of being thermally addressed to provide a visible image as a result of thermally induced catalytic transformation of the image-forming chemistry.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: July 6, 2004
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, Henry J. Gysling, David F. Jennings
  • Patent number: 6746984
    Abstract: In an image-forming medium, a sheet of paper is coated with a layer of microcapsules which is composed of a binder material and a plurality of microcapsules filled with dye and uniformly distributed in the binder material. The binder material exhibits a predetermined thermal melting point, and the microcapsules exhibit a pressure-breaking characteristic so as to be squashed and broken under a predetermined pressure when said binder material is thermally softened or melted. When a leuco-pigment-based dye is used, a color developer is substituted for the binder material.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: June 8, 2004
    Assignee: PENTAX Corporation
    Inventors: Minoru Suzuki, Kazuyuki Shimbo, Yutaka Igari
  • Patent number: 6743750
    Abstract: A heat-sensitive recording material includes, on a support thereof, a heat-sensitive recording layer containing a diazo compound and a coupler.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: June 1, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisato Nagase, Yoshihiro Jimbo
  • Publication number: 20040091810
    Abstract: The present invention relates to a microcapsule produced by using at least an isocyanate compound, a heat-sensitive recording material including the microcapsules and a multicolor heat-sensitive recording material including the microcapsules, wherein the isocyanate compound is a reaction product of an isocyanate compound with a polyether derivative.
    Type: Application
    Filed: October 28, 2003
    Publication date: May 13, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Masatoshi Yumoto, Takashi Tamura, Koreshige Ito
  • Patent number: 6727203
    Abstract: A method capable of producing, with industrially realizable production efficiency, microcapsules whose particle diameters are small and whose particle diameter distribution is limited, specifically microcapsules for a heat-sensitive recording material, and a heat-sensitive recording material including the thus produced microcapsules. In this method, microcapsules are produced by the steps of preparing an emulsion from an oil phase that contains a material to be micro-encapsulated and a microcapsule wall material, and an aqueous phase, and micro-encapsulating the materials by using the emulsion, the emulsion preparing step being conducted by using a microreactor having channels whose equivalent diameter is no more than 1 mm, and a heat-sensitive recording material having the thus obtained microcapsules is also provided.
    Type: Grant
    Filed: February 12, 2002
    Date of Patent: April 27, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kimio Ichikawa
  • Patent number: 6716793
    Abstract: An image-recording composition comprising: a microcapsule enclosing a leuco-dye; a phenol color-developing agent; and a reaction-accelerating agent catalyzing a color-developing reaction between the leuco-dye and the phenol color-developing agent, the reaction-accelerating agent being an organic compound having at least two carboxyl groups. An image-recording sheet comprising a substrate and a color-developing layer disposed by applying the image-recording composition to the substrate is also provided.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: April 6, 2004
    Assignee: Pentax Corporation
    Inventors: Yukio Kubota, Minoru Suzuki, Kazuyuki Shimbo
  • Publication number: 20040056641
    Abstract: A battery powered device, such as a breast pump, that includes a battery terminal that is configured to also serve a receptacle for an auxiliary power cord. The battery powered device also includes a battery stop that allows a pin, which is configured to receive the auxiliary power cord, to also serve as a battery terminal. More specifically, the battery stop prevents a user from over-inserting the battery into the battery cavity and thereby breaking or bending the battery terminal, which is typically configured as a pin that also functions as a male receptacle for the auxiliary power cord. In this manner, the battery stop allows the same pin to serve as the battery terminal and as a male contact for the auxiliary power cord receptacle without exposing the pin to damage from over-insertion of the battery into the battery cavity.
    Type: Application
    Filed: September 23, 2003
    Publication date: March 25, 2004
    Inventors: Kenneth Myers, Drew Meincke
  • Patent number: 6703345
    Abstract: The present invention provides a diazonium salt represented by the following general formula (1) wherein R1 represents a branched alkyl group; R2 and R3 separately represent an alkyl group and may bond to each other to form a ring; R4, R5, and R6 separately represent a hydrogen atom, an alkyl group, or an aryl group and R4 and R5 may bond to each other to form a ring; and X− represents an anion and a heat-sensitive recording material comprising a heat-sensitive recording layer including the diazonium salt and a coupler.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: March 9, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kimiatsu Nomura, Tatsuo Kawabuchi, Hisato Nagase, Satoshi Higuchi, Kimi Ikeda, Yoshihiro Jinbo
  • Patent number: 6703344
    Abstract: The invention provides a thermal recording material comprising a support and at least one thermal recording layer disposed on the support, wherein the layer comprises at least one electron-accepting compound, and microcapsules, which encapsulate an electron-donating dye precurser and are formed using a compound represented by the following general formula (I) and a compound represented by the following general formula Formula (II): wherein each of R1 and R2 represents an alkyl group; n is an integer selected from 0 to 3; and M represents Na, Mg, K or Ca.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: March 9, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shiki Ueki, Kazumori Minami
  • Patent number: 6680281
    Abstract: Disclosed is a heat-sensitive recording material comprising a support and a heat-sensitive coloring layer formed on the support, wherein the heat-sensitive coloring layer contains either composite particles in which a leuco dye is contained in solid resin particles or microcapsules in which a leuco dye and a hydrophobic organic solvent are contained, the heat-sensitive coloring layer optionally contains other leuco dye which forms a color different from the color formed by the leuco dye contained in the composite particles or in the microcapsules, and the developer is N-p-toluenesulfonyl-N′-3-(p-toluenesulfonyloxy)phenylurea.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: January 20, 2004
    Assignee: Oji Paper Co., Ltd.
    Inventors: Masanao Tajiri, Takashi Umemoto, Shigeru Suzuki, Rie Harunaga
  • Publication number: 20030236165
    Abstract: Product package, comprising a data storage device, packaging material, and an authentication system. The authentication system comprises first and second coatings coated on the storage device and the packaging material. One of the coatings comprises chromogenic microcapsules capable of reacting to produce color. The other coating comprises color developer. The coatings can be bonded to each other or a composite coating can be a self-contained color former such as on the storage device. The invention further comprises methods of affirming authenticity of a data storage device. The method comprises applying to the storage device a color-reactable coating which can react with a color-producing second composition, packaging the storage device to provide a closed and sealed packaged, opening the package, and concurrent with or after opening the package, reacting the chemical compositions to produce the color as an indication of authenticity of the data storage device.
    Type: Application
    Filed: June 25, 2002
    Publication date: December 25, 2003
    Applicant: Appleton Papers Inc.
    Inventors: Jan L. Peebles, Chandrakant B. Patel
  • Patent number: 6635601
    Abstract: A thermally imageable element can be imaged using heat alone without the need for photosensitivity or post-imaging processing. The element contains image-forming chemistry that comprises i) image precursor chemistry and ii) a catalyst or a catalyst precursor that upon imagewise heating is capable of promoting thermally induced image formation with the image precursor chemistry. The image-forming chemistry i) and ii) components are in reactive association and uniformly dispersed or dissolved within a binder in one or more layers of the element. Thus, the element is capable of being thermally addressed to provide a visible image as a result of thermally induced catalytic transformation of the image-forming chemistry.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: October 21, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, Henry J. Gysling, David F. Jennings
  • Publication number: 20030191022
    Abstract: The present invention provides a heat-sensitive recording material comprising a substrate; and at least two heat-sensitive recording layers provided on the substrate, the heat-sensitive recording layers including microcapsules encapsulating an electron-donating dye precursor, and an electron-accepting compound, which reacts with the electron-donating dye precursor to develop a color and is disposed outside of the microcapsules, wherein the microcapsules include at least two kinds of microcapsules having different glass transition temperatures. A difference between each of the glass transition temperatures of the at least two microcapsules having different glass transition temperatures is preferably in a range from 20° C. to 70° C. According to the invention, a heat-sensitive recording material, which is superior in the reproduction of the gradation of an image and enables recording at high density, is obtained.
    Type: Application
    Filed: March 25, 2003
    Publication date: October 9, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Hiroshi Kamikawa
  • Publication number: 20030176282
    Abstract: The present invention teaches an improved process for preparing a population of microcapsules having a substantially uniform size distribution, especially useful for manufacture of carbonless paper. The improved process teaches use of membrane material having a pre-selected pore size in the capsule manufacture process. A core material is provided along with a receiving solution for receiving the core material. The receiving solution is a nonsolvent for the core material. The core material is passed under pressure through the membrane into a moving or turbulent receiving solution forming uniform droplets of core material dispersed in the receiving solution. Wall-forming material is added to the receiving solution for coating the core material droplets. The coating on the droplets is polymerized forming microcapsules. This novel process also lends itself to microcapsule formation in a continuous process.
    Type: Application
    Filed: March 13, 2002
    Publication date: September 18, 2003
    Applicant: Appleton Papers Inc.
    Inventors: Troy Ronald Seehafer, George Arthur Stahler
  • Patent number: 6586364
    Abstract: A first heat-sensitive microcapsule of the present invention comprises a shell wall and a liquid coloring composition, and has such a temperature-breaking characteristic that the shell wall is broken by heating to a temperature equal to or higher than a boiling point of the liquid coloring composition. The first heat-sensitive microcapsule is stable to light and easy to handle. A second heat-sensitive microcapsule of the present invention comprises a shell wall, a coloring composition and a heat decomposition-type gas-developing agent, and has such a temperature-breaking characteristic that the shell wall is broken by heating to a temperature equal to or higher than a decomposition temperature of the gas-developing agent. The second heat-sensitive microcapsule can be sensitively broken even by heating in a short time.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: July 1, 2003
    Assignee: Pentax Corporation
    Inventors: Yukio Kubota, Minoru Suzuki, Kazuyuki Shimbo, Yutaka Igari