Having Nonchromogenic Liquid Spread-control Or Transfer-improving Agent Or Component, Color Modifier, Stabilizer Or Preservative Patents (Class 503/209)
  • Patent number: 11084307
    Abstract: The invention relates to a compound of the formula (I) Ar(NHSO2Ar1)l(SO2NHAr1)m(NHC(O)NHAr2)n (I), wherein l and m independently of one another are 0, 1, 2, 3, and/or 4 and the sum of l+m is equal to or more than 1, n is 2, 3, 4, or 5, Ar is a benzol group which is substituted (l+m+n) times, Ar1 is an unsubstituted or substituted aromatic group, and Ar2 is an unsubstituted or substituted phenyl group or a benzoyl group. The invention also relates to a heat-sensitive recording material comprising a carrier substrate and a heat-sensitive color-forming layer which contains at least one color former and at least said color developer.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: August 10, 2021
    Assignee: PAPIERFABRIK AUGUST KOEHLER SE
    Inventors: Michael Horn, Timo Stalling, Kerstin Zieringer
  • Patent number: 10226957
    Abstract: An object of the invention is to provide a recording material and recording sheet having excellent color-developing performance, storage stability, etc. A recording material having good color-developing performance and storage stability may be obtained by using a specific compound having a benzhydrol skeleton as an additive in a recording material employing color development through a reaction between a color former and a color-developing agent.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: March 12, 2019
    Assignee: NIPPON SODA CO., LTD.
    Inventors: Shuntaro Kinoshita, Kazumi Hamakawa, Hiroshi Sakai, Kayoko Tada
  • Patent number: 10160245
    Abstract: The invention relates to a heat-sensitive recording material. A heat-sensitive recording material, comprising a carrier substrate and a heat-sensitive, color-forming layer that contains at least one color former and at least one phenol-free color developer, is characterized in that said at least one color developer is a compound of formula (I) where Ar1 and Ar2 are a phenyl group and/or a C1-C4-alkyl substituted phenyl group. The invention also relates to a method for producing this heat-sensitive recording material and to the use, in a heat-sensitive recording material, of the color developer of formula (I) that is present in said heat-sensitive, color-forming layer.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: December 25, 2018
    Assignee: Papierfabrik August Kohler SE
    Inventor: Michael Horn
  • Patent number: 10086634
    Abstract: A heat-sensitive recording material includes a heat-sensitive recording layer containing a basic dye and a developer and provided on a supporting body, in which the developer is at least one type of an N-substituted amino acid derivative represented by the following General Formula: (R—X)m—Y—(Z)m . . . (1) (In Formula (1), R represents an alkyl group or an aryl group which may have a substituent. X is a group bonded to the N-terminus of Y, and represents —OCO—, —SO2NHCO—, —NHCO—, —NHCS—, or —SO2—. Y represents an amino acid residue or a peptide residue. Z represents a group bonded to the C-terminus of Y and represents an OH group or an OR? group. When Y is an amino acid residue other than a cystine residue or when Y is a peptide residue not having a cystine residue, m=1, and when Y is a peptide residue having n cystine residues, m=n+1 and n is 1 or 2.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: October 2, 2018
    Assignee: SANKO CO., LTD.
    Inventors: Yoshimi Ishibashi, Ryoichi Kinishi, Yoshito Nakagawa
  • Patent number: 9434199
    Abstract: A thermal recording material having both of excellent coloring property and storage stability with a low cost is provided. The thermal recording material contains a leuco dye and a developer in a coloring layer, and the developer contains 2,4?-dihydroxydiphenylsulfone and 4,4?-dihydroxydiphenylsulfone with a specific ratio, and the above-mentioned two kinds of the dihydroxydiphenylsulfones are made a material obtained by sequentially undergoing a separating step for heightening the weight ratio of a 2,4? material from a dichlorodiphenylsulfone mixture containing the 2,4? material and a 4,4? material, a reaction step of hydrolyzing the mixture to obtain a dihydroxydiphenylsulfone mixture, and a post-treatment step of subjecting to decolorization and purification.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: September 6, 2016
    Assignee: Fine Ace Corporation
    Inventor: Kazuo Kabashima
  • Patent number: 9340709
    Abstract: A support film for tape which is used for a tape, the support film for tape includes: a film-shaped support formed of polyurethane; and a barrier layer which includes a water-soluble polymer compound and montmorillonite and is formed on one surface of the support. The support film for tape has a percentage content of the montmorillonite in the barrier layer is equal to or more than 2 percent by weight and equal to or less than 22 percent by weight.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: May 17, 2016
    Assignees: HISAMITSU PHARMACEUTICAL CO., INC., TOPPAN PRINTING CO., LTD., MARUTO SANGYO CO., LTD.
    Inventors: Yasunori Takada, Takito Shima, Tetsurou Tateishi, Tsuguki Nishihara, Chiaki Yoshida, Atsushi Matsushima, Tsuyoshi Takamiya
  • Patent number: 9298143
    Abstract: According to one embodiment, a method for erasing an image includes erasing an image formed using a toner containing at least a binder resin, an electron donating color developable agent, and an electron accepting color developing agent by heating for 10 seconds or less. A color difference ?E between a region where the image is erased and a paper is 5 or less.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: March 29, 2016
    Assignee: Toshiba Tec Kabushiki Kaisha
    Inventors: Takayasu Aoki, Koji Imamiya, Katsunori Mizuta
  • Patent number: 9181658
    Abstract: A basecoat including a pigment blend including a calcined clay component and a hyper-platy clay component, wherein the hyper-platy clay component has a shape factor of at least about 40:1, and wherein the pigment blend has a sediment void volume of at least about 50 percent.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: November 10, 2015
    Assignee: WestRock MWV, LLC
    Inventors: Steven G. Bushhouse, Terry L. Clark, Gary P. Fugitt, James P. E. Jones, Anthony V. Lyons, Roger W. Wygant
  • Patent number: 9073376
    Abstract: The present invention provides a compound represented by the formula (1). The compound represented by the formula (1) is a developing agent superior in both color-developing sensitivity with low energy and image stability [in the following formula, wherein R1 is a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or an aralkyl group, R2 in the number of m are each independently an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an alkoxy group, a halogen atom, a hydroxy group, a cyano group, a nitro group, a carboxy group or an amino group, R3 in the number of n are each independently an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an alkoxy group, a halogen atom, a hydroxy group, a cyano group, a nitro group, a carboxy group or an amino group, and m and n are each independently an integer of 0-4.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: July 7, 2015
    Assignees: NIPPON PAPER INDUSTRIES CO., LTD., Mitsubishi Chemical Corporation
    Inventors: Akihito Ogino, Yoshimi Midorikawa, Yukiko Sato, Keiichiro Inada, Mai Higuchi, Mamoru Suga
  • Patent number: 9034790
    Abstract: The invention describes a thermally-responsive record material substantially free of aromatic isocyanate. The record material comprises a support having provided thereon a heat-sensitive composition comprising a substantially colorless dye precursor comprising a fluoran; and a developer material selected from the group consisting of 4,4?-diaminodiphenylsulfone and 3,3?-diaminodiphenylsulfone, which upon being heated react with said dye precursor to develop color, and including a binder material. Optionally, a modifier compound is included in the heat-sensitive composition. The modifier compound can be selected from the group consisting of a fatty acid amide, preferably a saturated fatty acid amide such as an alkyl amide, a bis methylene alkyl amide, or a bis ethylene alkyl amide, or any of 1,2-diphenoxy ethane, dimethyl diphenoxy ethane, and dimethyl phthalate.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 19, 2015
    Assignee: Appvion, Inc.
    Inventors: Fadi Selim Chakar, Mark Robert Fisher
  • Patent number: 8975212
    Abstract: The invention provides a phenolsulfonic acid aryl ester represented by formula (1) wherein each symbol is as defined in the description. The phenolsulfonic acid aryl ester is useful as a developer to provide a thermal recording material with good color-developing sensitivity, image density when printed at a low application energy (i.e., high start-up sensitivity), and heat and plasticizer resistance. The invention also provides a thermal recording material using the developer.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: March 10, 2015
    Assignees: Mitsubishi Chemical Corporation, Nippon Paper Industries Co., Ltd.
    Inventors: Mai Higuchi, Yoshimune Aosaki, Keiichiro Inada, Mamoru Suga, Katsuto Ohse, Yoshimi Midorikawa, Yukiko Sato
  • Patent number: 8962521
    Abstract: Disclosed is a humidity indicator which contains no heavy metal and has good visibility of a color change that occurs when the humidity is increased. The humidity indicator can be produced by applying an aqueous coating comprising a leuco dye, an acidic compound which is in a solid state at ambient temperature, a deliquescent substance and an aqueous resin emulsion onto a substrate such as a resin film, a nonwoven fabric or a paper, and heating and drying the resulting product.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: February 24, 2015
    Assignee: Kyodo Printing Co., Ltd.
    Inventors: Kunio Nakatsubo, Tatsuya Ogawa, Hitoshi Otomo, Midori Fujisaki
  • Patent number: 8962522
    Abstract: The present invention relates to a thermochromic color-memory composition containing: (I) an electron donating coloring organic compound, (II) an electron accepting compound, and (III) an ester compound represented by the following formula (1) as a reaction medium which controls color reaction of the components (I) and (II): (in the formula, X represents any of a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and a halogen atom, m represents an integer of from 1 to 3, and n represents an integer of from 1 to 20).
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: February 24, 2015
    Assignee: The Pilot Ink Co., Ltd.
    Inventor: Yoshiaki Ono
  • Publication number: 20150051070
    Abstract: A thermal recording material having both of excellent coloring property and storage stability with a low cost is provided. The thermal recording material contains a leuco dye and a developer in a coloring layer, and the developer contains 2,4?-dihydroxydiphenylsulfone and 4,4?-dihydroxydiphenylsulfone with a specific ratio, and the above-mentioned two kinds of the dihydroxydiphenylsulfones are made a material obtained by sequentially undergoing a separating step for heightening the weight ratio of a 2,4? material from a dichlorodiphenylsulfone mixture containing the 2,4? material and a 4,4? material, a reaction step of hydrolyzing the mixture to obtain a dihydroxydiphenylsulfone mixture, and a post-treatment step of subjecting to decolorization and purification.
    Type: Application
    Filed: March 19, 2013
    Publication date: February 19, 2015
    Inventor: Kazuo Kabashima
  • Patent number: 8921266
    Abstract: A method for preparing a color laser marked article comprising the steps of: a) infrared laser marking a security element including a polymeric support and a color forming layer comprising a color forming compound, an infrared dye and a polymeric binder comprising vinyl acetate and at least 85 wt % of vinyl chloride based on the total weight of the binder; and b) exposing the laser marked security element with light having a wavelength higher than 440 nm. The light exposure of step b) hinders the falsification of an issued security document without significant increase of background density.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: December 30, 2014
    Assignee: Agfa-Gevaert N.V.
    Inventors: Bart Waumans, Paul Callant
  • Patent number: 8916496
    Abstract: The invention describes an improved thermally-responsive record material substantially free of aromatic isocyanate yielding an image of high intensity and useful for bar codes. The record material comprises a support having provided thereon a heat-sensitive composition comprising a substantially colorless color former comprising a fluoran; and a developer material selected from the group consisting of 4,4?-diaminodiphenylsulfone and 3,3?-diaminodiphenylsulfone, and an organic acid which upon being heated reacts with said color former to develop color, and including a binder material. Optionally, a modifier compound is included in the heat-sensitive composition. The compound can be selected from the group consisting of a fatty acid amide, such as stearmide. Optionally, magnesium state is included.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: December 23, 2014
    Assignee: Appvion, Inc.
    Inventors: Fadi Selim Chakar, Mark Robert Fisher
  • Patent number: 8916497
    Abstract: The invention describes a thermally-responsive record material substantially free of aromatic isocyanate. The record material comprises a support having provided thereon a heat-sensitive composition comprising a substantially colorless dye precursor comprising a fluoran; and a developer material selected from the group consisting of 4,4?-diaminodiphenylsulfone and 3,3?-diaminodiphenylsulfone in combination with N-[(butylamino)carbonyl]-4-methylbenzene sulfonamide, which upon being heated react with said dye precursor to develop color, and including a binder material.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: December 23, 2014
    Assignee: Appvion, Inc.
    Inventors: Mark Robert Fisher, Fadi Selim Chakar, Yves Defrenne
  • Publication number: 20140315713
    Abstract: The present invention provides a compound represented by the formula (1). The compound represented by the formula (1) is a developing agent superior in both color-developing sensitivity with low energy and image stability [in the following formula, wherein R1 is a hydrogen atom, an alkyl group, an alkenyl group, an aryl group or an aralkyl group, R2 in the number of m are each independently an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an alkoxy group, a halogen atom, a hydroxy group, a cyano group, a nitro group, a carboxy group or an amino group, R3 in the number of n are each independently an alkyl group, an alkenyl group, an aryl group, an aralkyl group, an alkoxy group, a halogen atom, a hydroxy group, a cyano group, a nitro group, a carboxy group or an amino group, and m and n are each independently an integer of 0-4.
    Type: Application
    Filed: October 31, 2012
    Publication date: October 23, 2014
    Applicants: NIPPON PAPER INDUSTRIES CO., LTD., MITSUBISHI CHEMICAL CORPORATION
    Inventors: Akihito Ogino, Yoshimi Midorikawa, Yukiko Sato, Keiichiro Inada, Mai Higuchi, Mamoru Suga
  • Patent number: 8859460
    Abstract: A heat-sensitive recording material includes at least a paper substrate, a heat-sensitive recording layer arranged on the front side of the substrate and which has at least one dye precursor and at least one color acceptor, wherein dye precursor and color acceptor react with one another under the action of heat to form color, and an authenticating security feature. The authenticating security feature is a mark which is applied to the back side of the paper substrate and which is made of a tincture having at least one organic solvent. A barrier coating is arranged between the substrate and heat-sensitive recording layer and is suitable to protect the heat-sensitive recording layer against penetration of the tincture into the heat-sensitive recording layer from the back side.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: October 14, 2014
    Assignee: Mitsubishi HiTec Paper Europe GmbH
    Inventors: Ulf Behrens, Gerhard Stork, Svenja Eisernitz, Matthias Marx
  • Publication number: 20140263673
    Abstract: The invention describes an improved thermally-responsive record material substantially free of aromatic isocyanate yielding an image of high intensity and useful for bar codes. The record material comprises a support having provided thereon a heat-sensitive composition comprising a substantially colorless color former comprising a fluoran; and a developer material selected from the group consisting of 4,4?-diaminodiphenylsulfone and 3,3?-diaminodiphenylsulfone, and an organic acid which upon being heated reacts with said color former to develop color, and including a binder material. Optionally, a modifier compound is included in the heat-sensitive composition. The compound can be selected from the group consisting of a fatty acid amide, such as stearmide. Optionally, magnesium state is included.
    Type: Application
    Filed: October 11, 2013
    Publication date: September 18, 2014
    Applicant: Appvion, Inc.
    Inventors: Fadi Selim Chakar, Mark Robert Fisher
  • Publication number: 20140274681
    Abstract: A heat-sensitive recording material includes at least a substrate, a heat-sensitive recording layer arranged on the front side of the substrate and has at least one color former and at least one color acceptor, wherein the color former and color acceptor react with one another under the action of heat to form color, a protective layer covering the heat-sensitive recording layer, a barrier coating which contains ethylene vinyl alcohol copolymer (EVOH) and suitable for protecting the heat-sensitive recording layer against penetration of chemicals causing uncontrolled desensitizing reactions and color reactions in the heat-sensitive recording layer, wherein the barrier coating is arranged between the substrate and the heat-sensitive recording layer, and a tincture, as authenticating security feature, introduced into the substrate and/or applied to at least one side of the substrate.
    Type: Application
    Filed: September 13, 2010
    Publication date: September 18, 2014
    Applicant: Mitsubishi HiTec Paper Europe GmbH
    Inventors: Ulf Behrens, Gerhard Stork, Svenja Eisernitz, Matthias Marx
  • Patent number: 8592342
    Abstract: A thermal paper is described for the formation of images in thermal printing equipment and their manufacturing process, using high smoothness paper as a base or substrate. The thermal paper object of this invention is more economical and has a fully-acceptable performance. The high smoothness non-coated base paper has a greater high smoothness superficial finish than uncoated paper, and this development had not previously been used industrially for this purpose, since on trying to use the state of art of the process coupled with uncoated paper characteristics, the result was a low quality product. Hence, until now base papers had to be used with a previous coating the preparation of which increased production costs due to finished product characteristics, such as heavier weight (weight by square meter) and also a higher caliber.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: November 26, 2013
    Inventors: Ricardo Millares Neyra, Ricardo Millares Sotres, Dalila Rivera Carmona
  • Patent number: 8557732
    Abstract: A coating material capable of making a coating surface smoother, improving glossiness and being suitably used especially as a thermosensitive recording material, is provided, along with a method for producing the same. As a means for realizing the foregoing, there is provided a coating material produced by a multilayer simultaneous coating process, including: an outermost coating surface having moisture evaporation pores, wherein the moisture evaporation pores are 1.5 ?m or less in average diameter. And there is a method for producing the coating material, including: simultaneously depositing two or more types of coating solutions over a continuously running web, and drying the coating solutions, wherein a coating solution which constitutes a coating other than an outermost coating surface is formed of a dispersion solution, and dispersed particles contained in the dispersion solution are 1 ?m or less in average diameter.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: October 15, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideyuki Kobori, Shuji Hanai, Tomohito Shimizu, Yasuhide Takashita
  • Patent number: 8551911
    Abstract: An object of the present invention is to provide a recording material or a recording sheet that is excellent in background and image stabilities and further excellent in color-developing sensitivity. The recording material of the present invention contains a color-forming compound, an additive, and at least one compound represented by formula (I) [wherein R1 and R4 each independently represent a C1-C6 alkyl group or the like; p represents 0 or any integer of 1 to 4; q represents 0 or any integer of 1 to 5; when p and q represents 2 or more, each of R1 and each of R4 are the same or different; R2 and R3 each independently represent a hydrogen atom or the like; R5 represents a hydrogen atom or the like; and the bond represented by the wavy line represents E, Z, or a mixture thereof].
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: October 8, 2013
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hiroshi Sakai, Toshio Aihara, Satoshi Kodama, Shuntaro Kinoshita, Kazumi Jyujyo, Tadahiro Kondo
  • Publication number: 20130237414
    Abstract: The invention provides a phenolsulfonic acid aryl ester represented by formula (1) wherein each symbol is as defined in the description. The phenolsulfonic acid aryl ester is useful as a developer to provide a thermal recording material with good color-developing sensitivity, image density when printed at a low application energy (i.e., high start-up sensitivity), and heat and plasticizer resistance. The invention also provides a thermal recording material using the developer.
    Type: Application
    Filed: September 16, 2011
    Publication date: September 12, 2013
    Applicants: NIPPON PAPER INDUSTRIES CO., LTD., API CORPORATION
    Inventors: Mai Higuchi, Yoshimune Aosaki, Keiichiro Inada, Mamoru Suga, Katsuto Ohse, Yoshimi Midorikawa, Yukiko Sato
  • Patent number: 8492308
    Abstract: The present invention provides a thermosensitive recording medium with excellent color developing sensitivity, moist heat resistance and plasticizer resistance, as well as excellent heat resistance, background coloring, light resistance and the like in the printed image. A diphenyl sulfone derivative containing a hydroxyl group on one end and an alkoxy group on the other end has a higher melting point than the one containing hydroxyl groups on both ends. As a result, the thermosensitive recording medium obtained using the diphenyl sulfone derivative as the color developing agent in the thermosensitive color developing layer has excellent heat resistance. However the color developing sensitivity of the thermosensitive recording medium generally declines simultaneously, when a color developing agent with a high melting point is ordinarily used.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: July 23, 2013
    Assignees: Nippon Paper Industries Co., Ltd., API Corporation
    Inventors: Tatsuyuki Kurihara, Tatsuo Nagai, Yoshimi Midorikawa, Akihito Ogino, Mamoru Suga, Yoshimune Aosaki
  • Patent number: 8466085
    Abstract: The present invention provides a thermosensitive recording medium, which has a satisfactory color developing sensitivity, an excellent general printability (surface strength) and an excellent anti-sticking property. The thermosensitive recording layer of the thermosensitive recording medium of the present invention contains an alkylketene dimer. Without forming a protecting layer, the thermosensitive recording medium of the present invention is superior in color developing sensitivity, general printability (surface strength) and anti-sticking property.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: June 18, 2013
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Aya Kato, Tatsuyuki Kurihara, Tatsuo Nagai, Yoshimi Midorikawa, Kenji Hirai, Akihito Ogino
  • Patent number: 8372782
    Abstract: There are disclosed imaging members wherein a chemical compound in a crystalline form is converted, at least partially, and preferably substantially completely or completely, to an amorphous form that has intrinsically a different color from the crystalline form. Also described are imaging methods utilizing the imaging members. The conversion of the compound from the crystalline form to an amorphous form can be effected by laser exposure.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: February 12, 2013
    Assignee: Zink Imaging, Inc.
    Inventors: William T. Vetterling, Chien Liu, Suhail Shabbir Saquib, Brian David Busch, Stephen Telfer
  • Patent number: 8367581
    Abstract: To provide a thermosensitive recording medium including: a support; a thermosensitive recording layer composed mainly of a leuco dye and a developer, formed on a surface of the support; and at least two antibacterial agents which include a zirconium phosphate antibacterial agent and an imidazole antibacterial agent and which are internally contained in the thermosensitive recording medium.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: February 5, 2013
    Assignee: Ricoh Company, Ltd.
    Inventor: Tohru Kitano
  • Patent number: 8324399
    Abstract: A heat resistance improver including a heat resistance improving component which has a benzotriazole skeleton having an electron attractive group and a reactive aliphatic hydroxyl group or a reactive aliphatic mercapto group, wherein the heat resistance improver is used in a reversible thermosensitive recording medium.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: December 4, 2012
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsunobu Morita, Jun Maruyama
  • Patent number: 8277696
    Abstract: The present invention relates to a thermochromic color-memory composition comprising a solubilized mixture of (I) an electron donating coloring organic compound, (II) an electron accepting compound and (III) an ester compound represented by the following formula (1) as a reaction medium which controls color reactions of the components (I) and (II): wherein R represents an alkyl group having 1 to 21 carbon atoms or an alkenyl group having 1 to 21 carbon atoms, and n represents an integer of from 1 to 3.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: October 2, 2012
    Assignee: The Pilot Ink Co., Ltd.
    Inventor: Yoshiaki Ono
  • Patent number: 8202821
    Abstract: Provided is a thermal recording material superior in color development sensitivity, and having good preservation properties such as in heat resistance, moisture resistance, water resistance and the like.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: June 19, 2012
    Assignees: Nippon Paper Industries Co., Ltd, API Corporation
    Inventors: Junpei Natsui, Hiroshi Kohama, Mamoru Suga, Yoshimune Aosaki
  • Patent number: 8101545
    Abstract: The present invention provides coating compositions for marking substrates, which comprises a color former, an amine salt of an organic metal compound, a binder, a solvent, and optionally additional components, wherein the amine salt of the organic metal compound is of formula (I) in which X is silicon or boron, and E and F are the same or different and are selected from the group consisting of a, b, c, d, e, f, g, h in which R6 and R7 are the same or different are hydrogen, C1-4-alkyl, C1-4-alkoxy, halogen, amino or carboxy, and for X=silicon o=1 and p=0, and R1 is aryl, aralkyl or C1-4-alkyl, or o=1 and p=1, and R1 and R2 together form a one residue selected from the group consisting of a, b, c, d, e, f, g and h, and for X=boron o=0 and p=0, and R3, R4 and R5 are the same or different and are hydrogen, C1-12-alkyl, C1-6-hydroxyalkyl, allyl, aralkyl or arylsulfonyl, in which aralkyl or arylsulfonyl can be substituted with C1-4-alkyl, or R3 and R4 together with the nitrogen to which they are attached form a m
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: January 24, 2012
    Assignee: Datalase Ltd.
    Inventors: Jonathan Campbell, John Whitworth, Alan Platt, Ian Street
  • Patent number: 8093179
    Abstract: Storage-stable compositions comprising a color developer, an anionic dispersant and a thickening agent as well as heat-sensitive recording materials comprising such compositions, a process for its manufacture and its use.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: January 10, 2012
    Assignee: BASF SE
    Inventor: Robert Montgomery O'Neil
  • Patent number: 8062993
    Abstract: The present invention relates to a developer mixture for a thermal recording material, which comprises a mixture of the first organic developer comprising a condensate or a condensed composition represented by the formula (I): wherein R is a lower alkyl group or an aralkyl group, n is an integer of 0 to 5, and X and Y are each a hydrogen atom, an alkyl group or an aryl group, and the second organic developer other than the first organic developer (except 2,2-bis(3-methyl-4-hydroxyphenyl)propane), a developer mixture for a thermal recording material, and a thermal recording material having a heat-coloring layer containing the developer mixture. Using the developer mixture for a thermal recording material of the present invention, a thermal recording material sufficiently satisfying the recent requirement for high sensitivity, and having superior preservation stability of color images and non-image areas can be realized.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: November 22, 2011
    Assignees: API Corporation, Nippon Paper Industries Co., Ltd.
    Inventors: Mamoru Suga, Nanako Okamoto, Aya Kato, Takashi Date, Yoshihide Kimura
  • Publication number: 20110177941
    Abstract: A thermosensitive recording material including: a support; an undercoat layer containing at least a water-soluble resin; a thermosensitive coloring layer containing a leuco dye and a developer; and a protective layer containing a water-soluble resin and a fluorescent whitening agent, wherein the undercoat layer, the thermosensitive coloring layer, and the protective layer are formed in this order over the support, wherein the undercoat layer has a single layer structure or a multilayer structure, and the protective layer has a single layer structure or a multilayer structure, and wherein the undercoat layer has an air permeance of 150 mL/min or less.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 21, 2011
    Applicant: RICOH COMPANY, LTD.
    Inventor: Kazuhiro UCHIMURA
  • Patent number: 7972991
    Abstract: Disclosed herein is a heat-sensitive recording material shows good barcode printability and provides printed images having an excellent milk resistance. The heat-sensitive recording material comprises a heat-sensitive recording layer contains 3,3?-diallyl-4,4?-dihydroxydiphenylsulfone and 1,2-di(methylphenoxy)ethane in a specific amount relative to the leuco dye, and contains a crosslinked diphenylsulfone-based compound in an specific ratio based on the total solid in the heat-sensitive recording layer.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: July 5, 2011
    Assignee: Oji Paper Co., Ltd.
    Inventors: Masaharu Nojima, Takashi Takemura
  • Patent number: 7956007
    Abstract: A heat-sensitive recording material comprising a support and a heat-sensitive recording layer, the heat-sensitive recording layer comprising a colorless or pale-colored basic dye and a developer, the developer being 4-allyloxy-4?-hydroxydiphenylsulfone, and the heat-sensitive recording layer further comprising a compound represented by formula (I): wherein R1 is an unsubstituted aromatic group, or an aromatic group substituted with at least one member selected from the group consisting of a methyl group and a chlorine atom, and R2 is a divalent organic group.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: June 7, 2011
    Assignee: Oji Paper Co., Ltd.
    Inventors: Yoshimi Ishibashi, Yukie Mori
  • Publication number: 20110130281
    Abstract: The present invention provides a thermosensitive recording medium with excellent color developing sensitivity, moist heat resistance and plasticizer resistance, as well as excellent heat resistance, background coloring, light resistance and the like in the printed image. A diphenyl sulfone derivative containing a hydroxyl group on one end and an alkoxy group on the other end has a higher melting point than the one containing hydroxyl groups on both ends. As a result, the thermosensitive recording medium obtained using the diphenyl sulfone derivative as the color developing agent in the thermosensitive color developing layer has excellent heat resistance. However the color developing sensitivity of the thermosensitive recording medium generally declines simultaneously, when a color developing agent with a high melting point is ordinarily used.
    Type: Application
    Filed: August 21, 2008
    Publication date: June 2, 2011
    Inventors: Tatsuyuki Kurihara, Tatsuo Nagai, Yoshimi Midorikawa, Akihito Ogino, Mamoru Suga, Yoshimune Aosaki
  • Publication number: 20110121557
    Abstract: Multi-layer articles capable of forming color images are provided. The articles include a multi-layer construction with at least two layers in which at least one of the layers includes a thermally activatable composition. The thermally activatable composition includes a non-linear light to heat converter composition and a color forming compound. Upon activation with a light source an image forms.
    Type: Application
    Filed: May 4, 2009
    Publication date: May 26, 2011
    Inventors: Pingfan Wu, Douglas A. Dunn, Dennis E. Vogel, Stanley C. Busman
  • Publication number: 20110065575
    Abstract: To provide a thermosensitive recording material, containing a base, a thermosensitive recording layer disposed on the base and containing a leuco dye and a color developer, an intermediate layer disposed on the thermosensitive recording layer, and a protective layer disposed on the intermediate layer, wherein the intermediate layer contains a resin, and an aziridine compound.
    Type: Application
    Filed: September 10, 2010
    Publication date: March 17, 2011
    Applicant: RICOH COMPANY, LTD.
    Inventors: Kenji SHIMIZU, Shinji Okada
  • Publication number: 20110003687
    Abstract: A thermal paper is described for the formation of images in thermal printing equipment and their manufacturing process, using high smoothness paper as a base or substrate. The thermal paper object of this invention is more economical and has a fully-acceptable performance. The high smoothness non-coated base paper has a greater high smoothness superficial finish than uncoated paper, and this development had not previously been used industrially for this purpose, since on trying to use the state of art of the process coupled with uncoated paper characteristics, the result was a low quality product. Hence, until now base papers had to be used with a previous coating the preparation of which increased production costs due to finished product characteristics, such as heavier weight (weight by square meter) and also a higher caliber.
    Type: Application
    Filed: November 11, 2008
    Publication date: January 6, 2011
    Inventors: Ricardo Millares Neyra, Ricardo Millares Sotres, Dalila Rivera Carmona
  • Publication number: 20100069240
    Abstract: A thermal recording material comprises a support and a thermal recording layer formed thereon, the thermal recording layer containing an electron-donating dye precursor and an electron-receiving developer that causes said dye precursor to develop a color, wherein said thermal recording layer contains vapor-phase synthesis silica, preferably, the vapor-phase synthesis silica has a specific surface area, measured by a BET method, of 50 to 200 m2/g and further is doped with aluminum oxide, and the thermal recording layer further contains the above vapor-phase synthesis silica and a diphenyl sulfones-bridged type compound, and the thermal recording material is excellent in anti-sticking property and image stability.
    Type: Application
    Filed: February 13, 2008
    Publication date: March 18, 2010
    Inventor: Yoshimi Ikezawa
  • Patent number: 7674748
    Abstract: (1) A 4-hydroxy-4?-isopropoxydiphenylsulfone developer dispersion characterized by being obtained by wet grinding a 4-hydroxy-4?-isopropoxydiphenylsulfone developer in the presence of at least one compound selected from the group consisting of 1,1,3-tris(2-methyl-4-hydroxy-5-cyclohexylphenyl)butane and 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, or in the presence of 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanuric acid; (2) a method for wet grinding a 4-hydroxy-4?-isopropoxydiphenylsulfone developer, characterized by wet grinding a 4-hydroxy-4?-isopropoxydiphenylsulfone developer in the presence of at least one compound selected from the group consisting of 1,1,3-tris(2-methyl-4-hydroxy-5-cyclohexylphenyl)butane and 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane, or in the presence of 1,3,5-tris(4-tert-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanuric acid; and (3) a heat-sensitive recording material having a heat-sensitive recording layer containing the developer dispersio
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: March 9, 2010
    Assignee: OJI Paper Co., Ltd.
    Inventor: Yoshimi Ishibashi
  • Patent number: 7645719
    Abstract: A thermal paper with a fluorescent security mark printed on the thermosensitive coating that is responsive to wavelengths in the range of 200 nanometers to 400 nanometers. The mark is either printed on the thermosensitive coating directly or on an optional protective top coat positioned over the thermosensitive coating. Methods of preparing the thermal paper comprise printing a solution, dispersion or emulsion of a fluorescent compound on the thermal paper by flexographic printing.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: January 12, 2010
    Assignee: NCR Corporation
    Inventors: Mary Ann Wehr, Zackary D. Baggett, Wendell B. Halbrook, Jr.
  • Patent number: 7645396
    Abstract: In a thermal recording medium including a basic chromogenic dye, a developer and a sensitizer, a composition for a thermal recording medium which composition contains 50 ppm to 5.0 mass % of 1-(3-methylphenoxy)-2-(4-methylphenoxy)ethane and/or 1,2-bis(4-methylphenoxy)ethane in 1,2-bis(3-methylphenoxy)ethane is used as said sensitizer, whereby the 1,2-bis(3-methylphenoxy)ethane compound is remarkably improved in milling property in the preparation of the above sensitizer, and a thermal recording medium is provided without impairing the colorability, etc., such as thermal colorability.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: January 12, 2010
    Assignee: Sanko Co., Ltd.
    Inventor: Shigeru Oda
  • Patent number: 7642218
    Abstract: An optical recording medium, comprises a substrate, an imaging composition disposed on said substrate, said compound comprising: a matrix, a color-forming agent, and a nucleating agent. The nucleating agent increases the nucleation density of at least one component of the color-forming agent.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: January 5, 2010
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brian Risch, Michael J Day, Vladek P Kasperchik, William Dorogy
  • Patent number: 7566682
    Abstract: In a thermal recording medium including a basic chromogenic dye, a developer and a sensitizer, a composition for a thermal recording medium which composition contains 50 ppm to 5.0 mass % of 1-(3-methylphenoxy)-2-(4-methylphenoxy)ethane and/or 1,2-bis(4-methylphenoxy)ethane in 1,2-bis(3-methylphenoxy)ethane is used as said sensitizer, whereby the 1,2-bis(3-methylphenoxy)ethane compound is remarkably improved in milling property in the preparation of the above sensitizer, and a thermal recording medium is provided without impairing the colorability, etc., such as thermal colorability.
    Type: Grant
    Filed: February 16, 2004
    Date of Patent: July 28, 2009
    Assignee: Sanko Co., Ltd
    Inventor: Shigeru Oda
  • Patent number: 7557065
    Abstract: The invention provides a heat-sensitive recording material, which is highly sensitive, is almost free of staining on the background, and gives a recorded image excellent in stability during storage, by using a finely divided sensitizer dispersion excellent in shelf stability produced in a short time with high volumetric efficiency. The invention relates to a method of producing a sensitizer dispersion, which comprises emulsifying and finely dividing a heat-sensitive recording sensitizer by melting under heating in an aqueous emulsifying dispersant, and then crystallizing the finely divided emulsified dispersion under rapid cooling, wherein the sensitizer is at least one member selected from the group consisting of 1,2-bis(phenoxy)ethane, 1,2-bis(3-methylphenoxy)ethane, 1,2-bis(4-methylphenoxy)ethane, p-benzylbiphenyl, di-p-methylbenzyl oxalate, and ?-naphthyl benzyl ether.
    Type: Grant
    Filed: April 8, 2004
    Date of Patent: July 7, 2009
    Assignee: Sanko Co., Ltd.
    Inventors: Shigeru Oda, Eiji Kawabata, Takaaki Mori, Tjang Kie Tan, Hiroshi Sumitomo, Yoshito Nakagawa
  • Patent number: 7452847
    Abstract: A reversible thermosensitive recording medium including a substrate, and a thermosensitive layer including an electron donating coloring compound, an electron accepting compound, and a phenol anti-oxidation agent containing one or more sulfur atoms having an alkyl group on one side. In addition, the thermosensitive layer reversibly changes its color tone depending on temperature to reversibly record and erase an image thereon.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: November 18, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroki Kuboyama, Satoshi Arai, Tadafumi Tatewaki, Satoru Sampei