Identified Organic Electron Acceptor (developer) Other Than Phenolic Resin Patents (Class 503/216)
  • Patent number: 11801659
    Abstract: A thermally expandable sheet includes: a first thermally expansive layer that is formed on one side of a base and contains a first thermally expandable material and a first binder, the first thermally expansive layer having a first ratio of the first thermally expandable material with respect to the first binder; and a second thermally expansive layer that is formed on the first thermally expansive layer and contains a second thermally expandable material and a second binder, the second thermally expansive layer having a second ratio of the second thermally expandable material with respect to the second binder, wherein the second ratio is lower than the first ratio.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 31, 2023
    Assignee: CASIO COMPUTER CO., LTD.
    Inventors: Yoshimune Motoyanagi, Yuji Horiuchi
  • Patent number: 11752793
    Abstract: A heat-sensitive recording material including a substrate, a heat-sensitive recording layer which includes N-(4-methylphenylsulfonyl)-/V-(3-(4-methylphenylsulfonyloxy)pheny-purea and/or N42-(3-phenylureido)phenyl]benzol sulfonamide, and an intermediate layer which is arranged between the substrate and the heat-sensitive recording layer and which includes calcined aluminum silicate, and a method for producing a heat-sensitive recording material and to the use of calcined aluminum silicate in an intermediate layer of a heat-sensitive recording material.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: September 12, 2023
    Assignee: MITSUBISHI HITEC PAPER EUROPE GMBH
    Inventors: Nadia El-Karzazi, Claas Boxhammer
  • Patent number: 11571921
    Abstract: In one aspect, the present invention relates to a thermosensitive recording medium comprising at least: —a support layer; —a thermosensitive colouring layer over the support layer, the thermosensitive colouring layer containing a leuco dye; and —a protective layer over the thermosensitive colouring layer; wherein the thermosensitive colouring layer comprises a developer having the general formula (I) below: wherein R1 to R3 each independently represent a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a C1-C6 alkoxyl group, a C1-C6 fluoroalkyl group; characterized in that the protective layer comprises particles of wax with an average particle size of at least 0.05 ?m and at most 2.0 ?m. In further aspects, the present invention relates to a label for attachment to a product comprising the thermosensitive recording medium of the invention, and to a consumer product package to which a thermosensitive recording medium or a label of the invention has been attached.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: February 7, 2023
    Assignee: Ricoh Company, Ltd.
    Inventors: Pauline Bie, Daiki Iwata, Erkan Kocak
  • Patent number: 10633344
    Abstract: The subject invention concerns a method for identifying complementary chemical functionalities to form a desired supramolecular synthon. The subject invention also pertains to binary phase compositions comprising one or more pharmaceutical entities and methods for producing such compositions.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: April 28, 2020
    Assignees: University of South Florida, The Regents of the University of Michigan
    Inventors: Michael J. Zaworotko, Nair Rodriguez-Hornedo, Brian Moulton
  • Patent number: 10513137
    Abstract: The objective of the present invention is to provide a thermosensitive recording medium excellent in color developing property, especially excellent in bar code readability, under severe environment. Provided is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains a specific sulfone compound and a specific urea-urethane-based compound in a specific ratio.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: December 24, 2019
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Yasuaki Matsumori, Akihito Ogino, Yoshimi Midorikawa
  • Patent number: 10265984
    Abstract: The disclosure provides a novel crystal form of N-(2-(3-phenylureido)phenyl)benzenesulfonamide, which is crystalline modification thereof specified by an X-ray diffraction diagram having peaks at diffraction angles (2?±0.1°) of 23.60°, 20.80°, 12.24° and 13.80° in a powder X-ray diffractometry using Cu-K? ray.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: April 23, 2019
    Assignee: NIPPON SODA CO., LTD.
    Inventors: Hiroshi Sakai, Shuntaro Kinoshita
  • Patent number: 10265985
    Abstract: The invention relates to a heat-sensitive recording material, comprising a supporting substrate and a heat-sensitive color-forming layer, which contains at least one color former and at least one phenol-free color developer, characterized in that the at least one color developer is a compound of formula (I), wherein Ar is an aryl residue, a heteroaryl residue, or a benzyl residue and Y is an aryl residue, a heteroaryl residue, a benzyl residue, an aryloxy residue, a heteroaryloxy residue, a benzyloxy residue, an arylamino residue, a heteroarylamino residue, or a benzylamino residue. The invention further relates to a method for producing said heat-sensitive recording material.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: April 23, 2019
    Assignee: PAPIERFABRIK AUGUST KOEHLER SE
    Inventor: Michael Horn
  • Patent number: 10131169
    Abstract: A heat-sensitive recording material including a web-shaped substrate having a front side and an opposite reverse side, and at least one heat-sensitive recording layer on either or both of the sides of the web-shaped substrate. The heat-sensitive recording layer contains at least one dye precursor at least one salicylic acid derivative as a (color) developer reactive with this at least one dye precursor, and polyvinylpyrrolidone as auxiliary component augmenting the (color) developer the at least one salicylic acid derivative is 3,5-di(?-methylbenzyl)salicylic acid.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: November 20, 2018
    Assignee: Mitsubish HiTec Paper Europe GmbH
    Inventors: Diana Valentina Becerra Siabato, Nora Wilke
  • Patent number: 10000083
    Abstract: A thermosensitive recording medium is provided that is excellent in heat discoloration resistance in the blank portions and in bar code readability. It also has excellent water resistance and printing (recording) run-ability. The thermosensitive recording medium includes a support, a thermosensitive recording layer installed on the support, and a protective layer on the thermosensitive recording layer. The thermosensitive recording layer contains two kinds of electron accepting color developing agents, a sulfonic acid compound and a diphenyl sulfone compound. Both the thermosensitive recording layer and the protective layer contain crosslinking agents, and at least one, and preferably both, of the thermosensitive recording layer and the protective layer contain an ammonium zirconium carbonate as the crosslinking agent.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: June 19, 2018
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Akihito Ogino, Kenji Hirai
  • Patent number: 9931877
    Abstract: A heat-sensitive recording material including a web-shaped substrate having a front side and an opposite reverse side, and at least one heat-sensitive recording layer on either or both of the sides of the web-shaped substrate.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: April 3, 2018
    Assignee: Mitsubishi HiTec Paper Europe GmbH
    Inventors: Gerhard Stork, Diana Valentina Becerra Siabato, Matthias Neukirch
  • Patent number: 9518011
    Abstract: An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol compound that is a safe compound in no danger of corresponding to an endocrine disruptor and is good in color developing performance. The non-phenol compound used in the present invention is at least one selected from the group consisting of compounds represented by the following formulas (I) to (III).
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: December 13, 2016
    Assignee: NIPPON SODA CO., LTD.
    Inventors: Hiroshi Sakai, Tadahiro Kondo, Kayoko Tada, Shuntaro Kinoshita, Kazumi Jyujyo
  • Patent number: 9375966
    Abstract: A sensitizer particle dispersion containing stearic acid amide, a preparation method thereof, a mixed dispersion composition for a thermosensitive recording layer using the sensitizer particle dispersion, and a thermosensitive recording medium using the mixed dispersion composition are provided. The sensitizer particle dispersion can be safely prepared under atmospheric pressure by mixing stearic acid amide and another sensitizer at a mass ratio of 95:5˜51:49; co-melting the mixture by heat in emulsifier-dispersed water, whereby the mixture is unified and emulsified into particles, or emulsifying the co-melted mixture of stearic acid amide and the other sensitizer unified by co-melting the mixture by heat, into particles in emulsifier-dispersed water; and quenching the obtained emulsified dispersion, thus crystallizing sensitizer particles from the emulsified particles.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: June 28, 2016
    Assignee: Sanko Co., Ltd.
    Inventors: Tjangkie Tan, Yoshito Nakagawa
  • 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: 9029442
    Abstract: A method of increasing the solubility and/or dispersibility of a perylene dye in a liquid medium. The method comprises binding the perylene dye to a polymer which is soluble in the liquid medium. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: May 12, 2015
    Assignee: SICPA Holding SA
    Inventors: Thomas Tiller, Cecile Pasquier, Aurélien Georges Jean Commeureuc
  • 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
  • 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
  • Patent number: 8888906
    Abstract: A heat-sensitive color-developing composition containing a hydroxyquinoline compound having a methyl group and an acid anhydride compound represented by general formula (1): wherein ring A represents a substituted or unsubstituted aromatic hydrocarbon ring, and n represents an integer of 1 to 3, and a heat-sensitive recording material containing the composition in a recording layer.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: November 18, 2014
    Assignee: Yamamoto Chemicals, Inc.
    Inventors: Ryoji Yamaguchi, Toshihiro Masaoka, Keisuke Takuma
  • Patent number: 8865620
    Abstract: The present invention provides heat-sensitive coating compositions, which comprise a color developer of formula (1) or mixtures thereof wherein R1 can be hydrogen, C1-20-alkyl, C3-8-cycloalkyl, C2-10-alkenyl, aryl or SO3H, and R2 and R3 can be the same or different and can be hydrogen, halogen, C1-20-alkyl, C3-8-cyclo-alkyl, C2-10-alkenyl, aryl, OR6, NR7R8, SR9, SO3H or COOR10 and R4 and R5 can be the same or different, and can be hydrogen, halogen, C1-20-alkyl, C3-8-cyclo-alkyl, C2-10-alkenyl, aryl, OR6, NR7R8 or SR9, R6, R7, R8, R9 and R10 can be the same or different and can be hydrogen, C1-30-alkyl, C3-8-cycloalkyl, C2-10-alkenyl or aryl, wherein C1-20-alkyl can be unsubstituted or substituted with one or more C3-8-cycloalkyl, C2-10-alkenyl, phenyl, halogen, OR11, NR12R13, SR14, SO3H or COOR15, and aryl can be unsubstituted or substituted with one or more halogen, C1-10-alkyl, halogenated C1-10-alkyl, C3-8-cycloalkyl C2-10-alkenyl, phenyl, OR11, NR12R13, SR14, SO3H or COOR15, wherein R11, R12, R13, R14 an
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: October 21, 2014
    Assignee: Datalase, Ltd.
    Inventors: Allan Francis Cunningham, Thomas Ehlis, Jean-Luc Birbaum, Pascal Hayoz, Kamalesh Pai Fondekar
  • 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: 20140235437
    Abstract: A color acceptor for chemical reaction with a dye precursor to form a visually recognizable color. The color acceptor is constructed of lactic acid monomers. Also disclosed is a heat-sensitive recording material with a substrate and a heat-sensitive recording layer, wherein the heat-sensitive recording layer contains at least one dye precursor and at least one color acceptor which react with one another in a color-forming manner when heat is applied, and wherein the color acceptor is constructed of lactic acid monomers.
    Type: Application
    Filed: November 8, 2012
    Publication date: August 21, 2014
    Inventor: Matthias Neukirch
  • Publication number: 20140231529
    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: Application
    Filed: April 29, 2014
    Publication date: August 21, 2014
    Applicant: Appvion, Inc.
    Inventors: Mark Robert Fisher, Fadi Selim Chakar, Yves Defrenne
  • Patent number: 8722576
    Abstract: A thermosensitive recording label is provided having a thermosensitive recording layer and a tackifier layer installed sequentially on a transparent film substrate. The thermosensitive recording label has excellent water and weather resistance.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: May 13, 2014
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Junichi Hayakawa, Hiroshi Kohama, Akihito Ogino, Yasuaki Matsumori
  • Publication number: 20140106963
    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: Application
    Filed: September 27, 2013
    Publication date: April 17, 2014
    Applicant: Segan Industries, Inc.
    Inventor: Hans O. Ribi
  • Patent number: 8697601
    Abstract: A rewritable recording material can be provided which contains at least one kind of phenolic compounds represented by formula (I) and which is capable of stably repeating coloring and discoloring for a long period of time as well as exerting superior storage properties such as heat resistance and moisture and heat resistance of the colored image and light resistance of the background. Also provided are a composition for forming a rewritable color-forming layer which is capable of forming a color-forming layer of the recording material, and a composition of a color-developing agent for a rewritable recording material.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: April 15, 2014
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Satoshi Kodama, Hiroshi Fujii, Tadashi Kawakami
  • Patent number: 8664157
    Abstract: An object of the present invention is to provide a recording material or a recording sheet that is excellent not only in whiteness of a background but also in storage property for a background and an image, and further has excellent dynamic sensitivity. In order to achieve the object, a phenol compound represented by Formula (I) [wherein R1 represents a hydroxyl group or a halogen atom, p represents 0 or an integer of 1 to 5, R2 and R3 each independently represent a hydrogen atom or a C1-C6 alkyl group, R4 represents a hydrogen atom, a C1-C6 alkyl group, an optionally substituted phenyl group or an optionally substituted benzyl group; and a bond shown with a wavy line represents E- or Z-form, or a mixture thereof] and having a color space b* of 10 or less, and preferably having brightness by Hunter of 75 or more, is used as a recording material.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: March 4, 2014
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hiroshi Sakai, Shuntaro Kinoshita, Tadahiro Kondo, Kazumi Jyujyo
  • Patent number: 8629082
    Abstract: The present invention provides a heat-sensitive recording material that suffers no defective coating and is superior in color-exhibiting sensitivity, image quality, and chemical resistance. The heat-sensitive recording material successively comprising, on a support, an undercoat layer, a heat-sensitive recording layer containing a leuco dye and a developer, and a protective layer, wherein the heat-sensitive recording layer contains, as a main pigment, kaolin having an average particle diameter of 0.1 to 0.4 ?m measured by a sedimentation method in an amount of 4 to 60 mass % based on a total solids content of the heat-sensitive recording layer, and wherein the heat-sensitive recording layer and the protective layer are formed by applying a heat-sensitive recording layer coating composition and a protective layer coating composition by a simultaneous multilayer curtain coating method, and drying resulting coatings.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: January 14, 2014
    Assignee: OJI Holdings Corporation
    Inventors: Shin-ichi Doi, Masahiro Morie, Kenji Muto, Toshizo Yamamoto
  • Patent number: 8603943
    Abstract: A proposed heat-sensitive recording material comprises a substrate, a heat-sensitive recording layer containing color formers and color acceptors, and a protective layer covering this heat-sensitive recording layer. The heat-sensitive recording layer has, as color acceptor, at least 66? percent by weight of 4,4?-dihydroxydiphenyl sulfone based on the total percentage of color acceptors in the heat-sensitive recording layer, and the protective layer has, as binder, at least 60 percent by weight of diacetone-modified polyvinyl alcohol based on the total percentage of binder in the protective layer.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: December 10, 2013
    Assignee: Mitsubishi HiTec Paper Europe GmbH
    Inventors: Gerhard Stork, Annette Schreiber, Diana Valentina Becerra Siabato
  • Publication number: 20130316900
    Abstract: Moisture-activated invisible stencil technology is created by applying a moisture-blocking agent in accordance with an artwork is applied to a base substrate. The base substrate is preferably fabricated of a moisture absorbing material. When the object is subjected to moisture, moisture wets to the exposed portion of the base substrate and is repelled in the areas where the moisture-blocking agent is applied thereon. The wetted portion of the base substrate changes in shade or color to expose the concealed image. The moisture-activated invisible stencil technology can be applied for simple aesthetic applications or advanced for applications to identify wet objects. The advanced applications can include warnings for wet roadways, pool decks, umbrellas, and the like.
    Type: Application
    Filed: August 5, 2013
    Publication date: November 28, 2013
    Inventor: James Philip Drago
  • Patent number: 8569208
    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: December 21, 2009
    Date of Patent: October 29, 2013
    Assignee: Segan Industries, Inc.
    Inventor: Hans O. Ribi
  • Patent number: 8563468
    Abstract: Provided is a color-developing composition containing a molecular compound which has as a component compound a compound represented by formula (I) [wherein Y represents a C1-C12 hydrocarbon group which is chained or branched and saturated or unsaturated, or a C1-C8 hydrocarbon group which is chained or branched, saturated or unsaturated and has an ether or thioether bond; R1, R2, R3 and R4 each independently represent a C1-C6 alkyl group or C2-C6 alkenyl group; n, p, q and r each represents any integer of 0 to 4; and m represents any integer of 0 to 2]. Also provided is a recording material with a sufficient color-forming sensitivity, superior storage stability, and especially with an extremely little background fogging in a heat resistance test.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: October 22, 2013
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Satoshi Kodama, Kazumi Jyujyo
  • 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: 20130260992
    Abstract: Hybrid topcoat formulations comprising a water soluble polymer and a water dispersible polymer provide improved adhesion to underlying surfaces. Paper products coated with these formulations, such as thermal paper, achieve high stain resistance and improved adhesion of UV cured silicone release layers.
    Type: Application
    Filed: March 27, 2012
    Publication date: October 3, 2013
    Applicant: NCR CORPORATION
    Inventor: Steven Nahm
  • Patent number: 8546299
    Abstract: Provided is a recording material with a superior heat resistance and having a low content of a dihydroxydiphenylsulfone derivative, and a color-developing composition for producing the recording material. With the use of this color-developing composition, a recording material with a superior heat resistance at the background part can be provided and the content of a dihydroxydiphenylsulfone derivative, such as 4,4?-dihydroxydiphenylsulfone, in the color-developing composition can be reduced to 2% by mass or less, or further to 1% by mass or less.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: October 1, 2013
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Hiroshi Fujii, Tadashi Kawakami, Satoshi Kodama, Kazumi Jyujyo
  • 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
  • Publication number: 20130225402
    Abstract: A reversible thermosensitive recording medium including an electronic information recording sheet having at least an electronic information recording element projecting from a surface thereof, a first sheet having a through hole into which the electronic information recording element can be inserted, and a second sheet having a cut-out portion capable of housing the entire electronic information recording sheet, wherein the second sheet houses in the cut-out portion the entire electronic information recording sheet, with being laid over the first sheet, and the electronic information recording element inserted into the through hole.
    Type: Application
    Filed: April 8, 2013
    Publication date: August 29, 2013
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tadafumi Tatewaki, Hiroyuki Ina, Nobuyoshi Sugiyama
  • Patent number: 8497227
    Abstract: Diphenylsulfone bridged compounds of the general formula: (1) wherein n is an integer of 1 to 10. Further, there is disclosed a thermal recording material comprising a support and, superimposed thereon, a thermosensitive color forming layer containing a color forming substance for thermal recording consisting of any of the diphenylsulfone bridged compounds and a color forming substance consisting of a colorless or light-colored leuco dye. This thermal recording material excels in the storability, especially wet heat resistance and oil resistance, of image areas and further exhibits excellent characteristics in the storability, especially heat resistance, of undeveloped areas.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: July 30, 2013
    Assignee: Nicca Chemical Co., Ltd.
    Inventors: Hajime Saito, Takeo Hasegawa
  • 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: 8470734
    Abstract: A heat-sensitive recording material includes a paper web with recycled fibers and a heat-sensitive recording layer includes color formers and color acceptors. The amount of recycled fiber contained in the paper web is at least 70 percent by weight, and the heat-sensitive recording layer has, as color acceptor, at least 33? percent by weight of N-(p-toluenesulphonyl)-N?-3-(p-toluenesulphonyloxyphenyl)urea in relation to the total content of color acceptors in the heat-sensitive recording layer.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: June 25, 2013
    Assignee: Mitsubishi HiTec Paper Europe GmbH
    Inventors: Gerhard Stork, Annette Schreiber, Svenja Eisernitz, Falk Jahns
  • Patent number: 8470735
    Abstract: Provided are a coating solution for a thermosensitive color developing layer of excellent storability wherein color development during its storage or during producing a thermal recording material is suppressed, and a thermal recording material with excellent print portion (image portion) storability and suppressed staining in the background color (white background). A coating solution for a thermosensitive color developing layer, which comprises a colorless or pale-colored electron-donating leuco dye, a hindered phenol compound and, as an electron-accepting developer, a diphenylsulfone derivative represented by the following formula (1): wherein the aforementioned hindered phenol compound has an average particle size (D50) of not more than 0.5 ?m, and the coating solution has a color tone a* of not less than ?4.0 as measured according to JIS Z 8729 and a whiteness W of not less than 62 as measured according to JIS Z 8715.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: June 25, 2013
    Assignees: Nippon Paper Industries Co., Ltd., API Corporation
    Inventors: Yoshimune Aosaki, Mai Kaneko, Katsuto Ohse, Yukiko Sato
  • Publication number: 20130137570
    Abstract: An object of the present invention is to provide a recording material or a recording sheet that is excellent not only in whiteness of a background but also in storage property for a background and an image, and further has excellent dynamic sensitivity. In order to achieve the object, a phenol compound represented by Formula (I) [wherein R1 represents a hydroxyl group or a halogen atom, p represents 0 or an integer of 1 to 5, R2 and R3 each independently represent a hydrogen atom or a C1-C6 alkyl group, R4 represents a hydrogen atom, a C1-C6 alkyl group, an optionally substituted phenyl group or an optionally substituted benzyl group; and a bond shown with a wavy line represents E- or Z-form, or a mixture thereof] and having a color space b* of 10 or less, and preferably having brightness by Hunter of 75 or more, is used as a recording material.
    Type: Application
    Filed: August 29, 2011
    Publication date: May 30, 2013
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Hiroshi Sakai, Shuntaro Kinoshita, Tadahiro Kondo, Kazumi Jyujyo
  • Publication number: 20130123101
    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: Application
    Filed: November 30, 2010
    Publication date: May 16, 2013
    Applicant: Mitsubishi HiTec Paper Europe GmbH
    Inventors: Ulf Behrens, Gerhard Stork, Svenja Eisernitz, Matthias Marx
  • Patent number: 8431513
    Abstract: An object of the present invention is to provide a recording material that is excellent in color-developing properties and background and image stabilities, and a compound used therein. The present invention relates to a compound represented by the formula (I) [wherein R11 to R14 each independently represent a halogen atom or the like; n, p, q, and r each independently represent 0 or any integer of 1 to 4; m represents 0 or any integer of 1 to 2; a represents any integer of 1 to 10; R2 represents a hydrogen atom or the like; R3 represents an OR51 group or the like; and R41 and R42 each independently represent a hydrogen atom or the like], a composition containing the compound, a method for producing the compound, a recording material containing at least one compound represented by the formula (I), and a recording sheet having the recording material.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: April 30, 2013
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Toshio Aihara, Hiroshi Sakai, Shuntaro Kinoshita, Satoshi Kodama, Tadahiro Kondo, Kazumi Jyujyo
  • Patent number: 8420568
    Abstract: Provided is a color-developing composition for recording materials having a superior heat resistance. The color-developing composition is a reaction composition containing a mixture of compounds represented by formula (III) obtained by reacting a dihydroxydiphenylsulfone derivative represented by formula (I) with a dihalide represented by formula (II) X—Y—X (II), wherein, in a composition where the content of a compound with n=1 in said reaction composition is from 5 to 80% by mass of the total solid content of the composition, at least 10% by mass of the compound with n=1 is a crystalline material.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: April 16, 2013
    Assignee: Nippon Soda Co., Ltd.
    Inventors: Satoshi Kodama, Toshiyuki Fukami, Hiroshi Fujii, Tadashi Kawakami, Toshio Aihara
  • 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: 8303857
    Abstract: The invention relates to a composite with inverse thermochromic properties, the composite changing from a colorless into a colored state with increasing temperature. The composite thereby contains a colorant, a developer and a fluxing agent and also an inorganic filler. The invention likewise relates to a composite material which contains a polymer-based matrix into which at least one composite with inverse thermochromic properties is doped. These composite materials are used in the field of sensor technology, solar technology, transport and communications technology and medical technology.
    Type: Grant
    Filed: April 16, 2008
    Date of Patent: November 6, 2012
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Arno Seeboth, Olaf Mühling, Ralf Ruhmann, Renate Vetter
  • Patent number: 8288313
    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: Grant
    Filed: February 13, 2008
    Date of Patent: October 16, 2012
    Assignee: Mitsubishi Paper Mills Limited
    Inventor: Yoshimi Ikezawa
  • Patent number: 8283286
    Abstract: A thermosensitive recording material which comprises a color forming layer comprising a color forming substance, which comprises a colorless or light color leuco dye, and a color developer and disposed on a support, wherein a mixture of (A) at least one compound selected from 4-hydroxy-4?-allyloxydiphenylsulfone, 4-hydroxy-4?-ethyloxydiphenylsulfone and 4-hydroxy-4?-n-propoxydiphenylsulfone and (B) a diphenylsulfone bridged compound represented by general formula (1): n representing an integer of 1 to 10, in amounts such that the ratio of the amounts by mass of (A) to (B) is 85:15 to 25:75 is used as the color developer. In the thermosensitive recording material, color is formed with a great density, image portions exhibit excellent properties for storage, in particular, excellent resistance to plasticizers, and portions of no color formation exhibit excellent properties for storage, in particular, excellent heat resistance.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: October 9, 2012
    Assignee: Nicca Chemical Co., Ltd.
    Inventor: Hajime Saito