Optical Brightening Compositions Patents (Class 252/301.21)
  • Patent number: 11434364
    Abstract: To provide a transparent resin composition having excellent optical characteristics, particularly, excellent optical characteristics under high temperature and high humidity. There is provided a transparent resin composition, including: an aromatic polycarbonate resin; and a water-insoluble organic sulfonic acid and/or a metal salt thereof, in which a content of the water-insoluble organic sulfonic acid and/or the metal salt thereof is 0.01 to 3.0 pts·mass to 100 pts·mass of the aromatic polycarbonate resin, and a dissolved amount of the water-insoluble organic sulfonic acid and/or the metal salt thereof is not more than 0.5 g to 100 g of pure water.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: September 6, 2022
    Assignee: Sony Corporation
    Inventors: Akito Kuriyama, Yasuhito Inagaki, Takahiro Ohe, Kenji Ueda, Kohei Shimizu
  • Patent number: 10139385
    Abstract: The invention provides methods and compositions for utilizing encapsulated tracer dyes in difficult liquids such as wastewater or with highly reactive treatment chemicals such as aluminum-based coagulants. In difficult liquids or highly reactive treatment chemicals even so-called “inert” tracers end up reacting and their fluorescence changes. As a result they are inconsistent and cannot be used to measure the amount of treatment chemical present. But by encapsulating the tracer dyes, even non inert tracer dyes become inert and they can reliably be used to measure the amount of treatment chemical present even if highly reactive or in a difficult liquid.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: November 27, 2018
    Assignee: Ecolab USA Inc.
    Inventors: Lan Xiao, Yanjiao Xie
  • Patent number: 9868858
    Abstract: The instant invention relates to mixtures of stilbene compounds which provide superior fluorescent whitening effects when applied to the surface of ink-jet papers.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: January 16, 2018
    Assignee: ARCHROMA IP GMBH
    Inventors: David Atkinson, Cristina Dominguez, Andrew Jackson
  • Patent number: 9657203
    Abstract: A two part curable composition is provided, where the composition comprises: (a) a first part comprising: (i) a (meth)acrylate component; (ii) 1,4-quinones, such as napthoquinone or benzoquinone and derivatives thereof in an amount less than or equal to about 0.05 weight percent; (iii) triaryl or alkaryl phenylphosphine in an amount greater than or equal to about 0.5 weight percent; and (iv) an amine; and (b) a second part comprising: (i) benzoyl peroxide in an amount greater than about 1.0 weight percent.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: May 23, 2017
    Assignee: Henkel IP & Holding GmbH
    Inventors: James Murray, Charles F. Schuft, Chih-Min Cheng
  • Patent number: 9534123
    Abstract: The present invention relates to a polymer, and a composition containing a particulate solid, an aqueous medium, and a polymer chain having at least one fused aromatic imide pendant group. The invention further provides compositions for millbases, dispersions, coatings and inks.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: January 3, 2017
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Andrew J. Shooter, Dean Thetford, Stuart N. Richards
  • Patent number: 9475982
    Abstract: A multi-wavelength composite light-storing powder and method of manufacturing and applying the same. It utilizes organic compound having double-imide-bond steric structure, to produce high speed collisions with light-storing material containing rare earth elements in an environment of extremely low temperature, to make collision surface produce instantaneous high temperature, so that the organic compound is sputtered onto a surface of the light-storing material. The surface is cooled instantly due to extremely low temperature to produce the composite light-storing powder. The composite light-storing powder is apt to engage cross linked structure of thermoplastic polymer in a high temperature blending process. Then, through a filament process, to produce successfully light-storing fiber capable of emitting multi-wavelengths with high heat resistance and wash endurance.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: October 25, 2016
    Assignee: TAIWAN TEXTILE RESEARCH INSTITUTE
    Inventors: Sheng-Jen Lin, Ying-Hsiu Hsiao
  • Patent number: 9290435
    Abstract: Disclosed is a molecular glass of a spirofluorene derivative having a molecular structure as follows: formula (I), wherein each of R1-R12 is a hydrogen atom, a hydroxyl group, a methoxyl group or an acid-sensitive substituent; substituents R1˜R12 can be identical or different, but on the same benzene ring the substituents cannot all be hydrogen atoms. The molecular glass has a good solubility in various polar solvents, is suitable to be made into a film; meanwhile the molecular glass has a very high glass transition temperature and meets the requirements of the photolithography processing technology. Also disclosed is a preparation method of the above-mentioned molecular glass of a spirofluorene derivative. The synthetic process of the method is simple and suitable for industrialization.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: March 22, 2016
    Assignee: Technical Institute of Physics and Chemistry of the Chinese Academy of Sciences
    Inventors: Yi Li, Qingshan Hao, Jinping Chen, Yi Zeng, Tianjun Yu
  • Patent number: 8894815
    Abstract: The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4?-diaminostilbene-2,2?-disulphonic acid and of organic acids which do not need extra solubilizing additives.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: November 25, 2014
    Assignee: Clariant Finance (BVI) Limited
    Inventors: John Martin Farrar, Andrew Clive Jackson, Margaret Mahon, Martin Oberholzer
  • Patent number: 8859679
    Abstract: The instant invention relates to storage stable aqueous solutions of stilbene optical brighteners with polyvinyl alcohols which can be directly used by the papermaker in that they may be diluted with water and/or be metered directly into a coating composition, to provide coated papers of a particularly high whiteness.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: October 14, 2014
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Andrew Clive Jackson, Alec Stewart Tindal, Mariela Gauto
  • Patent number: 8821770
    Abstract: Microstructured films comprising surface modified inorganic oxide particles and polymerizable resins are described.
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: September 2, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Taun L. McKenzie, David B. Olson, Nathaniel K. Naismith
  • Patent number: 8784612
    Abstract: The instant invention relates to storage stable solutions of optical brighteners based on certain salt forms of anilino-substituted bistriazinyl derivatives of 4,4?-diaminostilbene-2,2?-disulphonic acid and of organic acids which do not need extra solubilizing additives.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: July 22, 2014
    Assignee: Clariant Finance (BVI) Limited
    Inventors: John Martin Farrar, Andrew Clive Jackson, Margaret Mahon, Martin Oberholzer
  • Patent number: 8663820
    Abstract: The invention relates to a printed document of value having at least one authenticity feature in the form of a luminescent substance based on doped host lattices. The host lattice has a strong crystal field and is doped with at least one chromophore with the electron configuration (3d)2.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: March 4, 2014
    Assignee: Giesecke & Devrient GmbH
    Inventors: Thomas Giering, Rainer Hoppe, Fritz Stahr
  • Patent number: 8608907
    Abstract: A composition suitable for paper brightening, wherein the composition contains one or more specified fluorescent whitening agents with taurine groups. The composition is used for whitening paper, in particular at the wet-end, in the size press or by coating.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: December 17, 2013
    Assignee: Blankophor GmbH & Co. KG
    Inventors: Bernhard Hunke, Michael Kraemer, Andrei Tauber, Günter Klug
  • Patent number: 8535576
    Abstract: Inorganic nanoparticles having a refractive index of at least 1.60 wherein the nanoparticles are surface modified with a surface treatment comprising a compound comprising a carboxylic acid end group and a C3-C8 ester repeat unit.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: September 17, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Taun L. McKenzie, David B. Olson, Nathan K. Naismith
  • Publication number: 20130200307
    Abstract: A W/O-type emulsion ink composition for a writing tool having an aqueous component dispersed in an oil component, the oil component including a fluorescent coloring agent, and the aqueous component including a fluorescent whitening agent and water.
    Type: Application
    Filed: December 27, 2010
    Publication date: August 8, 2013
    Applicant: ZEBRA CO., LTD.
    Inventors: Makoto Ugajin, Eriko Nemoto, Makoto Fuse, Taku Fukai
  • Patent number: 8475630
    Abstract: Compositions and methods of producing an optically-enhanced paper-based material are disclosed. The composition can include an optical brightening agent and an additive having an aromatic portion, where the aromatic portion is associated with an optical brightening agent. The paper-based material can exhibit a higher capacity for the optical brightening agent relative to a paper-based material that lacks the additive. Techniques for increasing optical brightening agent retention in a paper-based material are also disclosed. The techniques include using an additive having an aromatic portion, where the aromatic portion associates with an optical brightening agent so that the retention of the optical brightening agent is improved.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: July 2, 2013
    Assignee: NanoPaper, LLC
    Inventors: Lynn Reis, Gangadhar Jogikalmath, David S. Soane
  • Patent number: 8282863
    Abstract: Microstructured films comprising surface modified inorganic oxide particles, surface modified inorganic nanoparticles having a high refractive index, and polymerizable resins are described.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: October 9, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Taun L. McKenzie, David B. Olson, Nathan K. Naismith
  • Publication number: 20120217439
    Abstract: This invention seeks to provide an extrusion-molded product formed from a resin composition that contains an aromatic polycarbonate resin and is excellent in transparency, appearance and flame retardancy. This invention is an extrusion-molded product formed from a resin composition comprising 100 parts by weight of an aromatic polycarbonate resin having a branched structure and a branching ratio of 0.7 to 1.5 mol % (component A) and 0.005 to 5 parts by weight of a flame retardant.
    Type: Application
    Filed: November 5, 2010
    Publication date: August 30, 2012
    Applicant: Teijin Chemicals Ltd.
    Inventors: Yuji Higaki, Takashi Oda
  • Publication number: 20120199250
    Abstract: A method of preparing an aluminum or aluminum alloy substrate to accept an adherent coating thereon is provided. The method includes the steps of degreasing the substrate, deoxidizing the substrate, and providing a prepaint conversion coating on the degreased and deoxidized substrate. The prepaint conversion coating composition comprises i) a source of fluoride ions; ii) a source of zirconium ions; iii) an acrylic resin; and iv) an optical brightener and forms a colorless, chromium-free conversion coating on the aluminum substrate that can be observed by exposing the treated substrate to UV light.
    Type: Application
    Filed: February 4, 2011
    Publication date: August 9, 2012
    Inventors: Roberto Zoboli, Sara Salsa, Massimo Garzone
  • Patent number: 8197722
    Abstract: Compositions capable of simultaneous two-photon absorption and higher order absorptivities are provided. Compounds having a donor-pi-donor or acceptor-pi-acceptor structure are of particular interest, where the donor is an electron donating group, acceptor is an electron accepting group, and pi is a pi bridge linking the donor and/or acceptor groups. The pi bridge may additionally be substituted with electron donating or withdrawing groups to alter the absorptive wavelength of the structure. Also disclosed are methods of generating an excited state of such compounds through optical stimulation with light using simultaneous absorption of photons of energies individually insufficient to achieve an excited state of the compound, but capable of doing so upon simultaneous absorption of two or more such photons. Applications employing such methods are also provided, including controlled polymerization achieved through focusing of the light source(s) used.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: June 12, 2012
    Assignee: The California Institute of Technology
    Inventors: Seth Marder, Joseph Perry
  • Patent number: 8187726
    Abstract: A nanoparticle-resin composite material is provided. The material has a transparent characteristic and a refractive index of at least 1.55 in the visible light region. The composite material includes inorganic nanoparticles dispersed in a polymer having a siloxane bond, the inorganic nanoparticles being coated with an organic compound. The organic compound is at least one compound selected from the group consisting of carboxylic acids, phosphinic acid, phosphonic acid, sulfinic acid, sulfonic acid, and thiols, and the selected compound contains an aryl group or an aryloxy group. The polymer is selected from the group consisting of methylphenyl polysiloxane, methylphenyl hydrogen polysiloxane, a mixture methylphenyl polysiloxane and methylphenyl hydrogen polysiloxane, or methylphenyl polysiloxane, methylphenyl hydrogen polysiloxane, and a mixture of methylphenyl polysiloxane and methylphenyl hydrogen polysiloxane.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: May 29, 2012
    Assignee: Sony Corporation
    Inventors: Yuuichi Sasaki, Mikihisa Mizuno, Sung-kil Lee, Hitoshi Katakura, Teiichi Miyauchi
  • Patent number: 8157961
    Abstract: The present invention relates to a sizing composition that, when applied to paper substrate, creates a substrate, preferably suitable for inkjet printing, having increased print density, print sharpness, low HST, and/or image dry time, the substrate preferably having high brightness and reduced color-to-color bleed as well. In addition, the present invention relates to a method of reducing the HST of a paper substrate by applying the sizing composition to at least one surface thereof. Further, the application relates to methods of making and using the sizing composition, as well as methods of making and using the paper containing the sizing composition.
    Type: Grant
    Filed: March 22, 2010
    Date of Patent: April 17, 2012
    Assignee: International Paper Company
    Inventors: Jay C. Song, Sen Yang, Yan C. Huang, Kapil M. Singh, Michael F. Koenig, David B. Shelmidine
  • Publication number: 20120085931
    Abstract: Fluorescing gel formulations are disclosed for monitoring cleaning of a surface. The fluorescing gel formulations are stable, fluoresce under UV light, and do not leave a mark after drying and removal. The compositions include an oppositely charged complexing agent which is used in combination with an anionic or cationic optical brightener. In some embodiments, the compositions include a cationic optical brightener with no complexing agent.
    Type: Application
    Filed: October 6, 2011
    Publication date: April 12, 2012
    Applicant: ECOLAB USA INC.
    Inventors: NICOLE BURNS, XIN SUN, THOMAS R. MOHS, JOSEPH R. WEGNER, MARK LEVITT, STEVEN E. LENTSCH
  • Publication number: 20110244148
    Abstract: The instant disclosure relates to a surface coating composition for inkjet media, including: a binder including at least one of water soluble polymers, water dispersible polymers, or combinations thereof; a pigment including at least one of low surface area inorganic pigments, organic pigments, porous inorganic pigments, or combinations thereof; an optical brightening agent; a metallic salt; and a chemical chelant.
    Type: Application
    Filed: December 8, 2008
    Publication date: October 6, 2011
    Inventors: Xiaoqi Zhou, Xulong Fu
  • Publication number: 20110227008
    Abstract: Microstructured films comprising surface modified inorganic oxide particles, surface modified inorganic nanoparticles having a high refractive index, and polymerizable resins are described.
    Type: Application
    Filed: November 20, 2009
    Publication date: September 22, 2011
    Inventors: Clinton L. Jones, Brant U. Kolb, Taun L. McKenzie, David B. Olson, Nathan K. Naismith
  • Patent number: 8021573
    Abstract: The present invention provides a near-infrared-absorbing material including: a luminescent agent, and a near-infrared-absorbing compound obtained by oxidizing a compound represented by the following formula (II): wherein R211, R212, R221, R222, R231, R232, R241 and R242 each independently represent a hydrogen atom, an aliphatic group or an aromatic group; R203, R213, R223, R233 and R243 each independently represent a substituent group; and n203, n213, n223, n233 and n243 each independently represent an integer from 0 to 4.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: September 20, 2011
    Assignee: FUJIFILM Corporation
    Inventors: Keizo Kimura, Katsuyoshi Yamakawa, Osamu Uchida
  • Patent number: 7993747
    Abstract: A light emitting composition includes a light-emitting lumophore-functionalized nanoparticle, such as an organic-inorganic light-emitting lumophore-functionalized nanoparticle. A light emitting device includes an anode, a cathode, and a layer containing such a light-emitting composition. In an embodiment, the light emitting device can emit white light.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: August 9, 2011
    Assignee: Nitto Denko Corporation
    Inventors: Amane Mochizuki, Jesse Dan Froehlich, Sheng Li, Toshitaka Nakamura, Robin Irene Young, Ghassan E. Jabbour, Michael E. Lauters
  • Patent number: 7862909
    Abstract: An organic electroluminescent element comprising an anode and a cathode having therebetween an emission layer containing a phosphorescent compound and an layer adjacent to the emission layer, the layer adjacent to the emission layer being provided between the emission layer and the cathode, wherein the layer adjacent to the emission layer comprises a compound having an electron withdrawing group; and the compound exhibits a HOMO level of ?5.7 to ?7.0 eV and a LUMO level of ?1.3 to ?2.3 eV.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: January 4, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Tomohiro Oshiyama, Hiroshi Kita, Eisaku Katoh
  • Patent number: 7846557
    Abstract: The present invention provides a light-emitting diode made of a polymer nanocomposite doped with quantum dots to improve luminescence efficiency and to increase stability and electrical characteristics.
    Type: Grant
    Filed: March 17, 2006
    Date of Patent: December 7, 2010
    Assignee: National Chiao Tung University
    Inventors: Kung-Hwa Wei, Chia-Hung Chou
  • Publication number: 20100276636
    Abstract: Process for the preparation of a brightener pigment comprising (a) a water-insoluble urea-formaldehyde resin having a water content of more than or equal to 50% by weight, and (b) a water-soluble fluorescent whitening agent, which process comprises adding together (a), (b) and an inorganic salt, the amount of the inorganic salt being sufficient to effect deposition of the water-soluble fluorescent whitening agent (b) on the water-insoluble urea-formaldehyde resin (a).
    Type: Application
    Filed: July 16, 2010
    Publication date: November 4, 2010
    Inventors: Robert Hochberg, Oliver Becherer, Gerhard Merkle
  • Patent number: 7731820
    Abstract: The invention relates to a composition comprising a) at least one water-soluble fluorescent whitening agent, b) a polymer formed from an ethylenically unsaturated monomer or monomer blend, characterized in that at least one monomer is acrylamide and the water-soluble polymer has an average (weight average) molecular weight of between 500 and 49,000, optionally, c) polyethylene glycol with a weight average molecular weight of between 500 and 6000 and d) water and the use of the composition for the fluorescent whitening of paper in coating and size press or film press applications.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: June 8, 2010
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Robert Cockcroft, Ted Deisenroth, Peter Rohringer, Winfried Steffen
  • Publication number: 20100096978
    Abstract: A composition for use in an organic light emissive device, the composition comprising a fluorescent organic light emissive material and a phosphorescent organic light emissive material of the same colour.
    Type: Application
    Filed: October 3, 2007
    Publication date: April 22, 2010
    Applicants: CDT Oxford Limited, Sumation Co. Limited
    Inventor: Richard Wilson
  • Patent number: 7670506
    Abstract: Compositions are provided, comprising a host and a dopant, wherein the weight:weight ratio of host:dopant is about 10:1 to about 40:1, and a solvent, and methods for making the same, as well as devices and sub-assemblies including the same.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: March 2, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Daniel David LeCloux, Eric M. Smith
  • Publication number: 20100032625
    Abstract: The invention relates to adhesive masses containing at least one electroluminescent additive, single and double-sided adhesive strips which are provided with adhesive masses of said type, and to the use of said adhesive masses for sticking together electronic components.
    Type: Application
    Filed: March 21, 2007
    Publication date: February 11, 2010
    Applicant: TESA AG
    Inventors: Marco Kupsky, Stephan Zollner
  • Patent number: 7648603
    Abstract: A primer formulated with a colorless dye detectable only under black light is provided. The present invention is non-detectable on a porous surface and color does not appear over time upon exposure to natural or synthetic lights. Under black light, sometimes referred to as ultra violet energy or long wave black light, the colorless dye appears as purple. However, once the black light is removed, the primer ceases to glow and returns to its natural, colorless state.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: January 19, 2010
    Assignee: Hercules Chemical Company Incorporated
    Inventors: Fred Richard Scholer, Hsing-Hui Yu, Wayne A. Merrifield
  • Patent number: 7622022
    Abstract: The present invention relates to a process for applying optical brightening agent (OBA) to a sheet of paper or paperboard substrate. The process comprises the step of spraying an aqueous composition comprising an optical brightening agent onto at least one surface of a sized paperboard substrate to form a treated paperboard substrate. The treated paperboard substrate includes a layer of OBA on at least one surface of the paper or paperboard substrate in which the brightness of the treated paper or paperboard substrate is greater than the sized paper or paperboard substrate before treating thereof.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: November 24, 2009
    Inventors: Benny J Skaggs, Matt Bovee
  • Patent number: 7531107
    Abstract: Compositions comprising (A) a total of from 2 to 30% by weight, based on the total composition (A)+(B), of one or more amino alcohols of formula (1) herein R1, R2, R3 and R4 are each independently of the others hydrogen, 1-C12alkyl,C5-C24aryl or C6-C36aralkyl, and R5 and R6 are each independently of the other hydrogen or C1-C4alkyl; and (B) from 70 to 98% by weight, based on the total composition (A)+(B), of a fluorescent whitening agent of formula (2) herein X is hydrogen, an alkali metal ion, an ammonium ion or a hydroxyalkylammonium radical derived from the amino alcohol of formula (1), and R7, R8, R9 and R10 are each independently of the others —OR11, —NR11R12 or a group of formula (3) wherein R11, and R12 are each independently of the other hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl, carboxyalkyl, H2N—CO-alkyl or alkylthio, are distinguished by high solubility in water and by high storage stability of the aqueous solutions.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: May 12, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Rainer Hans Traber, Ted Deisenroth, Sandra Galle, Helena Dbaly
  • Patent number: 7497971
    Abstract: The present invention relates to a mixture of fluorescent whitening agents comprising 11 to 20% by weight of a compound of formula (1), and 80 to 89% by weight of a compound of formula (2), wherein R1 denotes hydrogen, C1-C6alkyl, C5-C14aryl or C6-C24aralkyl and X is a bivalent radical of formula (3), (4) or (5) compositions containing the mixture and the use of the compositions for whitening synthetic fibers, in particular, polyester.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: March 3, 2009
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jean-Jacques Donzé, Marie Meyberger, Michael Milde, Volker Papendick, Josef Zelger
  • Publication number: 20090044744
    Abstract: An impact-resistant thermal sensitive material comprising at least one indicator dispersed throughout a heat-sensitive matrix material is provided. An article comprising the impact-resistant thermal sensitive material undergoes a permanent color change when exposed to a pre-determined temperature.
    Type: Application
    Filed: January 29, 2008
    Publication date: February 19, 2009
    Applicants: LUNA INNOVATIONS INCORPORATED, SOUTHWEST RESEARCH INSTITUTE
    Inventors: Bryan E. Koene, James D. Oxley, Jonas C. Gunter
  • Publication number: 20080290320
    Abstract: A brightening system includes a substrate and an amphoteric stilbene composition established on the substrate. The amphoteric stilbene composition includes a predetermined amount of at least one of 4,4?-diamino-2,2?-stilbene disulfonic acid, biarylsulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, biaryldisulfonate-4,4?-diamino-2,2?-stilbene disulfonic acid, derivatives thereof, salts thereof, and mixtures thereof; and a fixing agent.
    Type: Application
    Filed: August 5, 2008
    Publication date: November 27, 2008
    Inventors: Kai Kong Iu, Gary Larson, Hai Q. Tran, William A. Houle
  • Publication number: 20080187711
    Abstract: A materials system and methods are provided to enable the formation of articles by three dimensional printing. The materials system includes particulate mixtures having a whitening agent and a solid particulate additive comprising an acid, the latter adapted for modifying a cure rate of an infiltrant. The materials system also includes aqueous fluids including optical brightening agents.
    Type: Application
    Filed: January 10, 2008
    Publication date: August 7, 2008
    Applicant: Z Corporation
    Inventors: Amir Alam, James F. Bredt, Nanette Clark, Mary Flynn, Jean Sprauer, Derek X. Williams
  • Publication number: 20080135805
    Abstract: The invention relates to a fluorescent pigment comprising a) a melamine-formaldehyde polycondensation product, b) a distyryl biphenyl fluorescent whitening agent (FWA) of the formula (1), in which R1 represents hydrogen, chlorine or C1-C4alkoxy and M represents hydrogen, an alkaline or alkaline earth metal, ammonium or ammonium that is mono-, di-, tri- or tetrasubstituted by C1-C4alkyl or C2-C4hydroxyalkyl and, optionally, c) at least one additional fluorescent whitening agent, a process for its preparation and use thereof for the fluorescent whitening of paper, especially in coating.
    Type: Application
    Filed: August 3, 2005
    Publication date: June 12, 2008
    Inventors: Fabienne Cuesta, Ted Deisenroth, Kamalesh Pai Fondekar, Ramachandra V. Joshi, Peter Rohringer, Uma Ganeshram, Josef Zelger
  • Patent number: 7294287
    Abstract: Tetrahydro- and dihydroquinophenanthrine dione fluorescent whitening agents and a process for their preparation are provided.
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: November 13, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Damien Thurber Cole, Kevin Rodney Gerzevske
  • Patent number: 7270772
    Abstract: A compound of Formula (I) wherein X is hydrogen or a radical of Formula (II), R1 independently at each occurrence is a C1–C20 aliphatic radical, a C3–C10 cycloaliphatic radical, or a C3–C10 aromatic radical; R2, R3, R4 and R5 are independently at each occurrence a halogen, a nitro group, a cyano group, a hydroxy group, a C1–C20 aliphatic radical, a C3–C20 cycloaliphatic radical, or a C6–C20 aromatic radical; and “n”, “q”, and “p” are each independently integers having a value of 0 to 3, and “m” is an integer having a value of 0 to 4.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: September 18, 2007
    Assignee: General Electric Company
    Inventors: Yogendrasinh B. Chauhan, Adil Minoo Dhalla, Rahul R. Khanwelkar, Krishnamoorthy Sivakumar, Kiran Arunkumar Puthamane
  • Patent number: 7270771
    Abstract: The present invention relates to a fluorescent whitening agent comprising a mixture of two symmetrically and one asymmetrically substituted triazinylaminostilbene disulphonic acids, novel asymmetrically substituted derivatives, a process for their preparations and use of the mixture for whitening synthetic or natural organic materials, especially paper and for the fluorescent whitening and improvement of sun protection factors of textile materials.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: September 18, 2007
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Fabienne Cuesta, Georges Metzger, Roland Naef, Peter Rohringer, Rainer Hans Traber
  • Patent number: 7261928
    Abstract: A package coating is processed by applying a plurality of aqueous mixtures over a substrate. The aqueous mixtures each include a combination of pigments and binders. A packaging article is also disclosed that is made from the package coating on a substrate. Additionally, a packaging system is included that contains commercial product.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: August 28, 2007
    Assignee: Potlatch Corporation
    Inventors: Melvin Jokela, Cathy Kortesmaki, Ann Williams
  • Patent number: 7258815
    Abstract: The use of optical brighteners of the formula (II): in which Y denotes a radical of the formula and the other substituents have the meaning stated in the description, for brightening aqueous coating slips comprising at least one latex binder and at least one synthetic co-binder differing therefrom.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: August 21, 2007
    Inventors: Karl-Heinz Drenker, Heinz Giesecke, Bernhard Hunke, Bernd Hauschel, Reiner Gottschalk, Claudia Hundertmark
  • Patent number: 7198731
    Abstract: The present invention relates to the use of compounds of formula (I) wherein all substituents are as defined in the claims as optical brighteners as well as to new mixtures of optical brighteners.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: April 3, 2007
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Andrew Clive Jackson
  • Patent number: 7041235
    Abstract: The present invention relates to fluorescent diketopyrrolopyrrole analogues of the general formula (I), wherein A1 and A2 are C1–C18alkyl, C2–C18alkenyl, C2–C18alkynyl, C5–C8cycloalkyl, C5–C8cycloalkenyl, aryl or heteroaryl, A3 and A4 are independently of each other C1–C18alkyl, Ar3, —CR30R31—(CH2)m—Ar3, or Y—R32, wherein R30 and R31 independently of each other stand for hydrogen or C1–C4alkyl, or phenyl which can be substituted up to three times with C1–C3alkyl, Ar3 stands for aryl, in particular phenyl or 1- or 2-naphthyl, C5–C8cycloalkyl, in particular cyclohexyl, or heteroaryl, which can be substituted one to three times with C1–C8alkyl, C1–C8alkoxy, halogen or phenyl, which can be substituted with C1–C8alkyl or C1–C8alkoxy one to three times, and m stands for 0, 1, 2, 3 or 4, Y is C(O)— or SO2— and R32 is C1–C18alkyl, Ar3, or aralkyl and A3 can additionally be hydrogen, C1–C8alkyloxycarbonyl, such as tertbutoxycarbonyl, or aralkyloxycarbonyl, such as benzyloxycarbonyl, a process for their preparation and
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: May 9, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Colin Morton, David Macdonald Smith, Abul Iqbal
  • Patent number: 7019134
    Abstract: Water soluble, amphoteric optical brighteners (W) comprising at least one brightener-characteristic radical X which contain at least one anionic substituent and covalently linked over at least one tertiary amino group Z to at least one non-chromophoric, essentially aliphatic, polyquaternary ammonium-hydrocarbon radical Y containing more than one quaternary ammonium group and in which each hydrocarbon radical is optionally interrupted by and/or substituted with one or more further heteroatoms, have surprising brightening properties, especially in papermaking, and in the form of their aqueous solutions are of notable stability.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: March 28, 2006
    Assignee: Clariant Finance (BVI) Limited
    Inventors: John Martin Farrar, Andrew Clive Jackson