Natural Resin, Cellulose, Or Derivatives Containing Patents (Class 252/301.34)
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Patent number: 10815422Abstract: The invention relates to stabilized luminophores and in particular to the use thereof in and on textile goods.Type: GrantFiled: November 19, 2013Date of Patent: October 27, 2020Assignees: CHT Germany GmbH, Lenzing AktiengesellschaftInventors: Holger Danielec, Harald Lutz, Andreas Schmid, Tobias Rollbühler, Herbert Bachus
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Patent number: 10020458Abstract: A white organic light-emitting display device includes a red emission layer between a charge generation layer and a yellow-green emission layer and having a hole transport-type host. The white organic light-emitting display device can improve brightness, color gamut, and color shift rate since the red emission layer functions as a hole transport layer and an electron blocking layer, as well as an emission layer. The white organic light-emitting display device can further improve the efficiency of the red emission layer by reducing exciton quenching between the charge generation layer and the red emission layer by the insertion of an auxiliary layer composed of a hole transport-type host between the charge generation layer and the red emission layer.Type: GrantFiled: October 20, 2015Date of Patent: July 10, 2018Assignee: LG DISPLAY CO., LTD.Inventors: GwiJeong Cho, YounSeok Kam, TaeSun Yoo, TaeShick Kim, SeUng Kim
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Publication number: 20150132575Abstract: Luminescent fibers, articles including the luminescent fibers, and methods of forming the luminescent fibers are provided herein. In an embodiment, a luminescent fiber includes a regenerated cellulose and a luminescent polycyclic compound. The luminescent polycyclic compound includes a heterocyclic ring. The heterocyclic ring includes two nitrogen atoms therein.Type: ApplicationFiled: October 27, 2014Publication date: May 14, 2015Inventor: Thomas Potrawa
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Patent number: 8940442Abstract: The present invention is intended for providing a porous film having excellent film uniformity, and is capable to contribute for improving cyclic and rate properties, which is provided on a surface of electrode used for a secondary battery and the like. The porous film of the present invention is characterized by including water soluble polymer having an average polymerization degree of 500 to 2500, an inorganic filler and water soluble particulate polymer. In the present invention particularly, it is preferable that said water soluble polymer is thickening polysaccharides, further said water-insoluble polymer is preferably selected from the group consisting of semisynthetic cellulose polymer, sodium salt and ammonium salt thereof.Type: GrantFiled: January 30, 2009Date of Patent: January 27, 2015Assignee: Zeon CorporationInventors: Mayumi Fukumine, Yasuhiro Wakizaka
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Publication number: 20150014589Abstract: The present invention relates to an optical film and an optical display apparatus including the same. The optical film may include a base film and an optical functional layer formed on the base film, wherein at least one of the base film. The optical functional layer may include a luminescent material, and the luminescent material may include at least one of a fluorescent material and a phosphorescent material.Type: ApplicationFiled: December 5, 2012Publication date: January 15, 2015Inventors: Jin Woo Kim, Moon Soo Choi, Gi Wook Kang, Sang Cheon Park, Chul Jin Park, Hyoun Young Kim, Jong Hyuk Eun, Gyu Cheol Lee, Mi Young Chae
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Publication number: 20150014405Abstract: Cellulose ester films may include taggants to provide for product authentication and counterfeit identification, especially in packaging applications. In some instances, a tagged cellulose ester film may include cellulose ester, a plasticizer, and a taggant, wherein the taggant comprises at least one taggant component selected from the group consisting of an elemental marker, a molecular fluorophore, a particulate fluorophore, and any combination thereof.Type: ApplicationFiled: July 2, 2014Publication date: January 15, 2015Applicant: Celanese Acetate LLCInventors: Raymond M. Robertson, David Nyy
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Publication number: 20140370251Abstract: The present invention relates to a flame retardant identification system and, more particularly, to a tracing and tagging agent including a fluorescent tracing compound for substrates such as textiles and lumber.Type: ApplicationFiled: June 18, 2014Publication date: December 18, 2014Applicant: Junius, LLCInventors: Patrick D. Bumpus, George S. Murray
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Publication number: 20140345195Abstract: Disclosed is a wavelength-conversion material, and methods for its use, that includes an organic fluorescent dye and a polymeric matrix, wherein the organic fluorescent dye is solubilized in the polymeric matrix, and wherein the polymeric matrix is capable of absorbing light comprising a wavelength of 500 to 700 nm and emitting the absorbed light at a wavelength of greater than 550 to 800 nm.Type: ApplicationFiled: July 9, 2013Publication date: November 27, 2014Applicant: Saudi Basic Industries CorporationInventors: Suresh Velate, Pradeep Jeevaji Nadkarni, M. Meerakani Sait, Vinod Kumar Vasudevan, Sankaran Nedumbamana
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Patent number: 8889046Abstract: A method comprising injection molding a plastic part from a polymer formulation comprising an injection moldable thermoplastic and an additive, wherein the additive has a decomposition temperature that establishes a maximum processing temperature for the polymer formulation. The additive will thermally decompose to generate gaseous products causing visible bubble formation in the surface of the plastic part in response to exposure to a processing temperature that exceeds the decomposition temperature of the additive. A suitable additive may be, for example, selected from oxalates, carbamic acids, carbonic acids, diazocarbonyl compounds, and combinations thereof.Type: GrantFiled: December 6, 2011Date of Patent: November 18, 2014Assignee: International Business Machines CorporationInventors: Joseph Kuczynski, Melissa K. Miller, Heidi D. Williams, Jing Zhang
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Publication number: 20140335340Abstract: The present invention is a resin composition characterized in that an intercalated compound made of a layered silicate and a metal cationic iridium complex which emits light by having a ligand for light emission and a hydrophobic ligand is dispersed in a polymer matrix. According to the present invention, it is possible to provide a molding material which has stable light emission characteristics and which is flexible.Type: ApplicationFiled: December 13, 2012Publication date: November 13, 2014Inventors: Kenji Tamura, Akihiko Yamagishi
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Publication number: 20140302301Abstract: The invention relates to a high-strength luminescent cellulose synthetic fiber, which is produced by means of spin dyeing with a luminescent pigment and a dulling pigment.Type: ApplicationFiled: May 24, 2012Publication date: October 9, 2014Inventors: Walter Pfeffer, Franz Gugerell, Martin Gebert-Germ
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Patent number: 8801967Abstract: A granulate made of a cured mixture comprising a transparent true light matrix in which at least one photoluminescent luminous pigment and a transparent filler material are present, wherein the filler material comprises a grain size of less than 30? and/or a grain size between 70? and 1.2 mm. The granulate may be produced by producing a hardenable binder mixture, introducing and mixing a photoluminescent luminous pigment into the hardenable binder mixture, dispersing a filler in the mixture, and milling the hardened mixture to form the granulate.Type: GrantFiled: August 4, 2010Date of Patent: August 12, 2014Assignee: Nightec GmbH & Co. KGInventors: Henning Mack, Klaus Hock
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Publication number: 20140001377Abstract: Disclosed is a fluorescent ink containing more than one fluorescent materials that upon exposure to different excitation wavelengths emits different color. Also disclosed is a process of authentication using said fluorescent ink.Type: ApplicationFiled: June 29, 2012Publication date: January 2, 2014Applicant: XEROX CORPORATIONInventors: Gabriel Iftime, Maria Birau, Peter G. Odell
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Publication number: 20130342101Abstract: A luminescent product 100, a lamp and a light source are provided for converting light of a first color into light of a second color. The luminescent product 100 comprises a matrix polymer 108 and another material 106. The matrix polymer 108 comprises a luminescent material which converts light of a first color into light of a second color. The another material 106 is light transmitting. The luminescent product 100 is at least partially light transmitting and the matrix polymer has a three dimensional structure which has multiple surfaces being an interface between the matrix polymer and the another material to allow, in use, a light beam 104, which impinges on a side 102 of the luminescent product 100, to pass at least four times an interface between the matrix polymer 108 and the another material 106 before at least a part of the light beam 104 leaves the luminescent product 100 at another side 110 of the luminescent product 100.Type: ApplicationFiled: February 28, 2012Publication date: December 26, 2013Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Rifat Ata Mustafa Hikmet, Godefridus Johannes Verhoeckx, Ties Van Bommel, René Theodorus Wegh
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Patent number: 8558450Abstract: The present invention provides a color conversion film that can maintain sufficient conversion light intensity without increasing the thickness thereof, and a multicolor light-emitting organic EL device that uses such a film. The color conversion film of the invention includes a polymeric dye material that has a weight-average molecular weight of at least 1,000 but not more than 100,000 and that is composed of a first dye unit and a second dye unit. The first dye unit absorbs light incident on the color conversion film and transfers energy of the absorbed incident light to the second dye unit. The second dye unit receives the energy from the first dye unit and emits light.Type: GrantFiled: July 27, 2009Date of Patent: October 15, 2013Assignee: Sharp Kabushiki KaishaInventors: Masaru Nagai, Chong Li
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Publication number: 20130255778Abstract: A spherical phosphor includes a fluorescent substance having a maximum excitation wavelength of 400 nm or longer; and a transparent material containing the fluorescent substance, in which, in an excitation spectrum, an excitation spectral intensity in a wavelength region of from 340 nm to 380 nm is 50% or higher of an excitation spectral intensity at a maximum excitation wavelength. A wavelength conversion-type photovoltaic cell sealing material includes a light-permeable resin composition layer that contains the spherical phosphor and a sealing resin.Type: ApplicationFiled: November 18, 2011Publication date: October 3, 2013Inventors: Kaoru Okaniwa, Takeshi Yamashita, Taku Sawaki
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Publication number: 20130248765Abstract: Disclosed is a production method of a thermoplastic resin composition comprising: blending a thermoplastic resin (A) and a metal complex (B) and a ligand (C2), wherein the metal complex (B) has a ligand (C1) coordinated therein, and wherein the ligand (C2) has a higher boiling point than the ligand (C1) under atmospheric pressure, and then heating and mixing the resulting blend at a temperature of not less than a boiling point of the ligand (C1) and not more than a boiling point of the ligand (C2), to produce a thermoplastic resin composition that can provide a light-emitting body at low cost in which a light-emitting material is dispersed in the resin in a good dispersion state, excellent in transparency and excellent in light-emitting properties of visible light; a molding material obtained by molding the thermoplastic resin composition; and a light-emitting body obtained by molding the thermoplastic resin composition.Type: ApplicationFiled: November 28, 2011Publication date: September 26, 2013Applicant: MITSUBISHI RAYON CO., LTD.Inventors: Hiroshi Niino, Yutaka Aoki
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Publication number: 20130181166Abstract: A light emitting body has a base material containing a graphene structure and a covering material for covering a surface of the base material. The graphene structure preferably includes a sheet portion made of a monolayer or multilayer graphene nanosheet and having, at an edge portion thereof, an armchair edge-face portion; and a terminal six-membered ring bound to the armchair edge-face portion while sharing only one side therewith. Further, the graphene structure preferably includes a nitrogen-containing functional group bound to any one or more carbon atoms selected from (a) carbon atoms constituting the terminal six-membered ring but not bound to the armchair edge-face portion, and (b) carbon atoms constituting the sheet portion (including carbon atom on the side shared with the terminal six-membered ring).Type: ApplicationFiled: August 24, 2011Publication date: July 18, 2013Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventor: Hiroyuki Tetsuka
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Patent number: 8480928Abstract: The present invention relates to a composite luminophore comprising an inorganic matrix and an organic fluorescent dye, wherein the inorganic matrix is formed from an inorganic compound, and wherein the organic fluorescent dye has one or more functional groups by means of which the fluorescent dye is incorporated into the inorganic matrix, or is bound chemically thereto. The present invention further relates to a process for preparing such a composite luminophore and to the use thereof.Type: GrantFiled: January 7, 2009Date of Patent: July 9, 2013Assignee: Karlsruher Institut fur Technologie (KIT)Inventors: Claus Feldmann, Marcus Roming
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Patent number: 8475890Abstract: The present invention provides transparent chips with natural metal-like texture by coating silica-containing transparent chips with colored material, such as a metal powder, in a transparent resin as a base resin. The present invention also provides artificial stone with natural metal-like texture and patterns by mixing the colored material coated transparent chips and inorganic filler with a matrix resin. The artificial stone of the present invention can be prepared by mixing about 4 to about 24 parts by weight of inorganic filler and about 0.1 to about 5.0 parts by weight of the colored material coated transparent chips, per about 1 part by weight of the matrix resin. The colored material coated transparent chips can have a specific gravity of about 2.0 to about 2.65, while the matrix resin can have a specific gravity of about 2.2 to about 2.Type: GrantFiled: October 6, 2010Date of Patent: July 2, 2013Assignee: Cheil Industries Inc.Inventors: Doo Kyo Jeong, Soo Jheong Choi, Hee Cheol Lee, Han Ju Kang, Chang Ho Son
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Publication number: 20130134356Abstract: The present disclosure relates to a powder composition comprising both chemiluminescent and fluorescent components. In some embodiments, the disclosure provides a marking system, which is in powder form, comprising at least one oxalate ester, at least one fluorescer, at least one peroxide, at least one catalyst, and at least one secondary fluorescent agent. In accordance with the present disclosure, the at least one oxalate ester, the at least one fluorescer, the at least one peroxide, and the at least one catalyst are admixed at the time of use for the generation of light. In certain embodiments, the chemiluminescent components emit light in the visible, ultra-violet, or infrared spectrum as the result of a chemical reaction, and the secondary fluorescent components can be selected for their ability to absorb at least some of the light generated by the chemiluminescent components, and then reemit light at a different wavelength.Type: ApplicationFiled: November 27, 2012Publication date: May 30, 2013Applicant: Cyalume Technologies, Inc.Inventor: Cyalume Technologies, Inc.
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Patent number: 8425801Abstract: A composite organic EL material suited to flash deposition and a method for producing the same are provided. A composite organic electroluminescence material in which an organic material and an organic metal complex are combined with each other, wherein the melting point of the organic material is lower by 30° C. or more than the decomposition temperature of the organic metal complex.Type: GrantFiled: April 13, 2009Date of Patent: April 23, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hidehiro Matsunami, Yasunori Kadoi, Chishio Hosokawa, Yoshikazu Tanaka, Toshihiro Iwakuma, Atau Ioku
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Publication number: 20130049571Abstract: An object of the invention is to provide a light emitting material which can improve the luminous lifetime of a light emitting device by being included in a light emitting layer of the light emitting device. A means for achieving the object is a light emitting material characterized by comprising wherein the material comprises a conjugated polymer having a conjugated part and a blue light emitting compound having a blue light emitting part and satisfies the following formula (1): y?log10(5.1×x0.Type: ApplicationFiled: January 28, 2011Publication date: February 28, 2013Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Makoto Anryu, Kohei Asada, Shigeru Sasaki
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Publication number: 20120244777Abstract: Compositions and methods for producing substantially uniformly colored bubbles are described. The composition comprises at least one surfactant mixed with at least one colorant, the colorant forming at least approximately 10% of the composition. The surfactant, or surface-active agent, forms the bubble while the colorant, or pigment, provides the color. Generally, the composition may comprise 10-99% colorant to produce varying degrees of opacity. In addition, glycerin, fragrance, propylene glycol, sodium lauryl sulfate, potassium hydroxide, or other additives may be included.Type: ApplicationFiled: March 22, 2011Publication date: September 27, 2012Inventors: Ram W. Sabnis, Timothy D. Kehoe
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Publication number: 20120237998Abstract: We describe methods that allow either carbodiimides or other carboxyl-reactive substances to be mixed with solutions of carboxylic acids or phosphates or amines or combinations thereof, so as to form a homogeneous mixture which is then dried, preferably in a freeze drying process. The mixture is then contacted with an entity, which preferably involves the dissolution of the mixture with a buffered solution of the entity, so as to initiate a conjugation reaction between the entity and a component in the mixture.Type: ApplicationFiled: March 15, 2011Publication date: September 20, 2012Applicant: INNOVA BIOSCIENCES LIMITEDInventors: Nicholas Gee, Annamaria Draghi
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Publication number: 20120071376Abstract: A method for monitoring cleaning of a surface includes applying an amount of transparent indicator material to an area of a surface and measuring the amount of transparent indicator material remaining on the surface. The transparent indicator material may be fixed on the surface by drying and, when a fluorescent material, may be measured through exposure to ultraviolet radiation.Type: ApplicationFiled: November 28, 2011Publication date: March 22, 2012Applicant: KLEANCHECK SYSTEMS, LLCInventor: Philip C. Carling
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Patent number: 8133575Abstract: An artificial stone, including a solid material and surface-treated stone elements in the solid material, wherein the surface-treated stone elements are transparent stone elements having a coloring material disposed on surfaces thereof.Type: GrantFiled: June 6, 2007Date of Patent: March 13, 2012Assignee: Cheil Industries, Inc.Inventors: Do Choon Rha, Eung Seo Park, Jae Wook Juen
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Publication number: 20110260110Abstract: The fluorescent dye-containing particle of the present invention includes a porous matrix composed mainly of metal oxide, an organic fluorescent dye contained in the porous matrix, and a water-soluble polymer contained in the porous matrix. The fluorescent dye-containing particle can be produced by the steps of: preparing a dye-containing sol solution containing a sol solution obtained by hydrolysis of a metal compound, an organic fluorescent dye, and a water-soluble polymer; and forming a particle from the dye-containing sol solution by spray drying process.Type: ApplicationFiled: December 16, 2009Publication date: October 27, 2011Applicant: NIPPON SHEET GLASS COMPANY, LIMITEDInventor: Shinji Mikami
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Publication number: 20110263037Abstract: Fibers, fabrics and textiles in which core-shell silica nanoparticles are incorporated are provided. The fibers, fabrics and textiles can be polymeric materials or natural cellulose-based or protein-based materials in which core-shell silica nanoparticles are incorporated. A variety of polymeric and natural materials can be employed, such as cellulose acetate, nylon, rayon, modacrylic, olefin, acrylic, polyester, polylactic acid, polylactic-co-glycolic acid (PLGA), polyurethane, aramid, wool, cotton, ramie, milk protein, soy protein, bamboo, etc. The core-shell silica nanoparticles can incorporate sensing, magnetic, thermal, electrical, chemical or RFID properties that can be imparted to the materials and that allow the materials to sense one or more conditions of interest, making them ideal for in situ sensing, treatment, or security applications.Type: ApplicationFiled: May 12, 2009Publication date: October 27, 2011Inventors: Erik Herz, Erin Sue Hendrick, Margaret W. Frey, Ulrich Wiesner
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Patent number: 7927511Abstract: The invention relates to a composition for coding having at least one pair of mutually associated luminescent substances having first and second luminescent substances which emit in a joint emission range located outside the visible spectral range. The emission spectra of the first and second luminescent substances overlap in at least a subrange of the stated emission range such that the emission spectrum of the first luminescent substance is complemented by the emission spectrum of the second luminescent substance.Type: GrantFiled: October 5, 2004Date of Patent: April 19, 2011Assignee: Giesecke & Devient GmbHInventors: Thomas Giering, Wolfgang Rauscher
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Patent number: 7910022Abstract: Disclosed are photoluminescent compositions containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum. Also disclosed are photoluminescent compositions containing photoluminescent phosphorescent materials and photoluminescent fluorescent materials whose emission signature lies partly or fully in the infrared region of the electromagnetic spectrum which are high in intensity and high in persistence.Type: GrantFiled: June 7, 2007Date of Patent: March 22, 2011Assignee: Performance Indicator, LLCInventors: Satish Agrawal, Edward Kingsley
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Patent number: 7893172Abstract: An oligomer or polymer comprising a first repeat unit and a second repeat unit that may be the same or different, the first repeat unit having formula (I): wherein each E independently represents optionally substituted nitrogen or optionally substituted phosphorus, with the proviso that at least one E is optionally substituted phosphorus; each Ar1, Ar2 and Ar3 is the same or different and independently represents an optionally substituted aryl or heteroaryl; n is 0-3; and in the case of unsubstituted nitrogen and phosphorus, the second repeat unit is directly conjugated to the first repeat unit.Type: GrantFiled: August 18, 2004Date of Patent: February 22, 2011Assignee: Merck Patent GmbHInventors: Carl Towns, Ian Rees, Ilaria Grizzi, Paul Wallace
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Patent number: 7790056Abstract: The invention relates to a composition for a coding forming at least part of a coding system having a luminescent basic substance and at least one luminescent additive, the composition of the coding being formed by the presence or absence of a luminescent additive and/or the type of additives and/or the number of additives.Type: GrantFiled: October 5, 2004Date of Patent: September 7, 2010Assignee: Giesecke & Devrient GmbHInventors: Thomas Giering, Gerhard Schwenk
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Patent number: 7740693Abstract: The present disclosure provides Benzoxazinone compounds represented by the formula: wherein each R1, R2, R3, and R4 is independently selected from hydrogen, alkyl of 1-12 carbon atoms, substituted alkyl, aryl of 6-12 carbon atoms, substituted aryl, halo, and alkoxy; and R5 is selected from alkyl of 1-12 carbon atoms, substituted alkyl, aryl of 6-12 carbon atoms, substituted aryl, halo, and alkoxy; wherein each of the substituted alkyl and the substituted aryl groups have a substituent selected from alkyl, aryl, halo, and alkoxy. The present disclosure provides a mark having a benzoxazinone compound, and a method for applying the mark onto an article. Also provided is a process for preparing benzoxazinone compounds.Type: GrantFiled: October 1, 2007Date of Patent: June 22, 2010Inventors: Thomas Potrawa, Joachim Schulz
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Patent number: 7618555Abstract: The present invention relates to an red luminescent ink composition exhibiting adequate and stable emission intensity under irradiation of ultraviolet rays and high solubility for a resin and an organic solvent. The ink composition of the present invention contains a luminous compound represented by the following formula (1): wherein R is a perfluoroalkyl group having 2 to 20 carbons, L1 and L2 are the same or different and are sulfoxide having a substituted or unsubstituted aryl group or a substituted or unsubstituted an alkyl group.Type: GrantFiled: April 6, 2007Date of Patent: November 17, 2009Assignee: Orient Chemical Industries, Ltd.Inventors: Fumio Furuya, Yasuhiro Yamasaki
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Patent number: 7553386Abstract: An adhesive adapted with particular optical properties, and its use to couple a substrate to a substrate holder during substrate processing are disclosed. After processing the substrate, the optical properties of the adhesive may be exploited to locate and/or remove adhesive residue that may be present on the substrate.Type: GrantFiled: May 22, 2008Date of Patent: June 30, 2009Assignee: Intel CorporationInventors: Daoqiang Lu, Eric J. Li
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Patent number: 7393468Abstract: An adhesive adapted with particular optical properties, and its use to couple a substrate to a substrate holder during substrate processing are disclosed. After processing the substrate, the optical properties of the adhesive may be exploited to locate and/or remove adhesive residue that may be present on the substrate.Type: GrantFiled: February 23, 2005Date of Patent: July 1, 2008Assignee: Intel CorporationInventors: Daoqiang Lu, Eric J. Li
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Publication number: 20080087190Abstract: Disclosed is a phase change ink containing a fluorescent colorant that upon exposure to activating energy fluoresces such that an image that was not visible prior to exposure to the activating energy becomes visible. Also disclosed are an ink jet system and a process for authenticating a color document using the disclosed phase change ink.Type: ApplicationFiled: October 12, 2006Publication date: April 17, 2008Applicant: XEROX CORPORATIONInventors: Gabriel IFTIME, Christopher A. WAGNER, C. Geoffrey ALLEN, Peter M. KAZMAIER, Peter G. ODELL, Paul F. SMITH
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Publication number: 20080041542Abstract: Polymer composite films were prepared by solvent casting suspensions of quantum dots (QDs) in cellulose triacetate (CTA) solution. The films were robust and possessed the optical properties characteristic of QDs. Transmission electron microscopy (TEM) images of the films revealed that the QDs were well dispersed within the CTA film matrix. The selective alkaline hydrolysis of QD/CTA films in 0.1N NaOH over 24 hours resulted in the surface conversion of CTA to regenerated cellulose. Optical properties of the films were probed both before and after the hydrolysis reaction using fluorescence spectroscopy, and were found generally unaltered. The cellulose surfaces of the alkaline treated films allow for facile incorporation of the films into paper sheets.Type: ApplicationFiled: February 7, 2007Publication date: February 21, 2008Inventors: Derek Gray, Tiffany Abitbol
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Patent number: 7192471Abstract: Fluorescent pigment compounds comprising aryl-ureido benzoxazinone compounds of the general formula (I): wherein R1 is an substituted or unsubstituted aryl group, R2 and R3 are each independently selected from an H atom, an alkyl group, an alkoxy group, an alkylcarboxy group and a halogen atom, X is a carbon or sulfur atom and n is an integer of 1 or more. Many of the compounds of this class produce a yellow, generally deep yellow, emission at wavelengths of about 560 to about 585 nm when excited by an appropriate UV source. These compounds produce fluorescence making them useful as fluorescent pigments, those compounds providing emission wavelengths within the range of from about 560 to about 585 or higher when excited by a UV source are particularly useful. Those compounds having this emission spectra for the compounds makes these compounds particularly useful as pigments in security applications, particularly as pigments for use in security inks and fibers.Type: GrantFiled: September 24, 2004Date of Patent: March 20, 2007Assignee: Honeywell International Inc.Inventors: Thomas Potrawa, Joachim Schulz
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Patent number: 7150839Abstract: Composition comprising a fluorescent material comprising the mixture of one or more metal salts selected from the group consisting of metal oxides and metal hydroxides; one or more carbohydrate(s) selected from the group consisting of sugar and starch; and one or more organic acid(s), method of preparation comprising mixing the components in the presence of water and then drying, and use of the fluorescent material in paper, plastic, polymer, resin, and paint. The resultant papers, plastics, polymers, resins, and paint have whiteness and brightness due to the fluorescence.Type: GrantFiled: December 29, 1999Date of Patent: December 19, 2006Assignee: Minerals Technologies Inc.Inventors: Robin L. Saulsbery, Matthew Frederick Slozer
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Patent number: 7129506Abstract: An optically detectable security marker for emitting light at a pre-selected wavelength. The marker comprises a rare earth dopant and a carrier incorporating the rare earth dopant. The interaction of the carrier and the dopant is such that the fluorescent fingerprint of the marker is different from that of the rare earth dopant. The marker may be incorporated into a plurality of items, such as fluids, for example paint, fuel or ink, and laminar products such as paper or banknotes or credit cards.Type: GrantFiled: April 12, 2004Date of Patent: October 31, 2006Assignee: NCR CorporationInventors: Gary A. Ross, Patricia Pollard, Catherine Hunter, Simon Officer, Gopala Radhakrishna Prabhu
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Patent number: 7115216Abstract: The addition of a variety of additives to a soluble electroluminescent polymer in solution is used to improve the printability and performance of screen printed light-emitting polymer-based devices. Examples of such additives include transparent polymers, gel-retarders, high viscosity liquids, organic and inorganic salts, and oxide nanoparticles. The additives are used to control the viscosity of the electroluminescent polymer ink, to decrease the solvent evaporation rate, and to improve the ink consistency and working time. In addition, these additives can improve the charge injection and power efficiency of light emitting devices manufactured from the screen printable electroluminescent polymer ink.Type: GrantFiled: December 20, 2002Date of Patent: October 3, 2006Assignee: Add-Vision, Inc.Inventors: Susan A. Carter, John G. Victor, Sara Tuttle, Jane Breeden
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Patent number: 7115430Abstract: A light emitting device includes: (a) a light emitting layer including an electroluminescent organic material dispersed in a matrix, wherein the matrix contains a non-electroluminescent organic polymer having a Tg of at least 170° C., and each of the organic polymer and the electroluminescent organic material constitutes at least 20 percent by weight of the light emitting layer; and (b) electrodes in electrical communication with the light emitting layer and configured to conduct an electric charge through the light emitting layer such that the light emitting layer emits light. A method for manufacturing a flexible organic light emitting device, includes providing the light emitting layer and providing electrodes above and below the light emitting layer, wherein the electrodes are in electrical communication with the light emitting layer.Type: GrantFiled: November 12, 2004Date of Patent: October 3, 2006Assignee: Air Products and Chemicals, Inc.Inventors: Lloyd Mahlon Robeson, Gary L. Johnson, William Franklin Burgoyne, Jr., Xuezhong Jiang
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Patent number: 7108742Abstract: The invention relates to an ink composition containing (a) a compound of formula (I), Lm?Ln3+(Ch?)n (I), wherein Ln represents a lanthanide, CH? is a negatively charged ligand containing at least one UV absorbing double bond, n denotes 3 or 4, m denotes a number from 1 to 4, in case n is 3, m denotes a number from 1 to 4 and L is a neutral monodentate or polydentate nitrogen-, oxygen- or sulfur-containing UV absorbing ligand with the exception of 2,2?-bipyridyl or, in case n is 4, m denotes 1 and L is a single-charged cation; and (b) a liquid ink carrier, which can be used for applying hidden mark on objects which can only be revealed under UV exposure.Type: GrantFiled: February 18, 2003Date of Patent: September 19, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Véronique Hall-Goulle, Stefan Koller, Mickael Mheidle
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Patent number: 7063806Abstract: The present invention relates to fluorescent diketopyrrolopyrroles (“DPPs”) of the formula characterized in that that at least two adjacent substituents R5 to R11 form an aromatic or aliphatic fused ring system, or at least one substituent R5 to R11 is cycloalkyl, aralkyl, alkenyl, cycloalkenyl, alkynyl, a hydroxyl group, a mercapto group, alkylthio, an aryl thioether group, a heterocyclic group, halogen, haloalkyl, haloalkenyl, haloalkynyl, a cyano group, an aldehyde group, a carbonyl group, a carboxyl group, an ester group, a carbamoyl group, a nitro group, a silyl group, a siloxanyl group, a substituted or unsubstituted vinyl, arylamino or diarylamino group; a process for their preparation and their use for the preparation of inks, colorants, pigmented plastics for coatings, non-impact-printing material, color filters, cosmetics, or for the preparation of polymeric ink particles, toners, dye lasers and electroluminescent devices.Type: GrantFiled: June 20, 2002Date of Patent: June 20, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Hiroshi Yamamoto, Norihisa Dan, Olof Wallquist
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Patent number: 7041235Abstract: 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 andType: GrantFiled: August 1, 2002Date of Patent: May 9, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Colin Morton, David Macdonald Smith, Abul Iqbal
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Patent number: 6749772Abstract: A fluorescent lubricant that is applied to an associated object in a liquid state and dries to a solid coating is formulated from a solid lubricant present in a concentration of about 60 percent to about 80 percent of the fluorescent lubricant. The solid lubricant is a solid at room temperature. A diluent for and compatible with the solid lubricant is present in a concentration of about 10 percent to about 40 percent of the fluorescent lubricant. An optical brightener is present in a concentration of about 0.1 percent to about 5.0 percent and a fluorescent dye is present in a concentration of about 0.1 percent to about 5.0 percent of the fluorescent lubricant. The fluorescent lubricant is heated to a temperature above about 130 degrees F., is applied to the associated object and cools to form solid, lubricating fluorescent coating on the associated object. A method for coating an object with a lubricating fluorescent coating is also disclosed.Type: GrantFiled: April 24, 2002Date of Patent: June 15, 2004Assignee: Illinois Tool Works, Inc.Inventor: William Zumdome
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Publication number: 20030052307Abstract: A liquefied color phosphorescent material consisting of a mixture which comprises a stock solution; a colorant; a color-emitting phosphorescent fine pigment particle having an average particle diameter of 7 &mgr;m or less; and an additive for stably dispersing pigments containing a cellulose-based synthetic resin, silica-based powder, cyclohexanone, isophorone and mineral spirit. The pigment particles of colorant and the color-emitting phosphorescent fine pigment particle are enabled to be always maintained in a substantially uniform dispersion state in the stock solution, thereby making it possible to attain a desired emitting color and to coat the phosphorescent material without necessitating the under-coating using a color paint.Type: ApplicationFiled: July 23, 2002Publication date: March 20, 2003Inventor: Takashi Kinno
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Patent number: 6531234Abstract: The present invention relates to a practical organic EL element which is excellent in a durability without decreasing a luminance even in the driving for a long period of time and which is appropriately used in, for example, a display of information appliances or the like, a process for producing the same, and further an organic EL film. It is an organic electroluminescence element in which an organic compound layer having at least an organic emitting layer is held between a pair of electrodes, an anode and a cathode, an intensity of a main peak and an intensity of each sub-peak in a mass spectrum of at least one layer of the organic compound layer satisfying a specific relationship.Type: GrantFiled: March 22, 2000Date of Patent: March 11, 2003Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hisahiro Higashi, Toshio Sakai, Chishio Hosokawa