Oxygen Containing Patents (Class 204/157.82)
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Patent number: 10274824Abstract: New photobase generators suitable for use in photoresists are provided that correspond to Formula (I): X1—R1—O—C(?O)N(R2)R3??(I) wherein X1 is an optionally substituted aromatic group; R1 is a linker; and R2 and R3 are the same or different optionally substituted linear, branched or cyclic aliphatic group or an optionally substituted aromatic group, wherein at least one of R2 and R3 is an optionally substituted branched alkyl group having 4 or more carbon atoms.Type: GrantFiled: May 12, 2016Date of Patent: April 30, 2019Assignee: Rohm and Haas Electronic Materials Korea Ltd.Inventors: Min-Kyung Jang, Eui Hyun Ryu, Chang-Young Hong, Myung Yeol Kim, Jung-June Lee, Dong Je Hong, Dong-Yong Kim, Hae-Jin Lim, Jae Yun Ahn, Ohk-Min Jeon
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Patent number: 10221315Abstract: A coating composition is disclosed comprising a film-forming resin and a catalyst component. The catalyst component comprises a catalyst contained within or encapsulated by a carrier; at least some of the catalyst is capable of being released from the carrier via diffusion through the carrier and into the coating composition. Methods of controlling the rate of cure of a curable film-forming composition and increasing the pot life of the composition by adding such catalyst components are also disclosed.Type: GrantFiled: November 8, 2013Date of Patent: March 5, 2019Assignee: PPG Industries Ohio, Inc.Inventors: Scott Moravek, Davina Schwartzmiller, Jane Valenta
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Patent number: 10214476Abstract: The present invention relates to the use of compounds for the treatment or prevention of pain in mammals, in particularly in human beings, and also to a process for preparing these compounds.Type: GrantFiled: December 31, 2012Date of Patent: February 26, 2019Assignees: ECOLE NATIONALE SUPERIEURE DE CHIMIE DE CLERMONT FERRAND, UNIVERSITÉ CLERMONT AUVERGNEInventors: Sylvie Ducki, Khalil Bennis, Alain Eschalier, Jérôme Busserolles, Florian Lesage, Nuno Rodrigues, Delphine Vivier
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Patent number: 10017401Abstract: The present invention relates to aluminum-doped chelate resins containing iminodiacetic acid groups, to a production process for aluminum-doped chelate resins containing iminodiacetic acid groups, and to a device comprising at least one layer of at least one aluminum-doped chelate resin containing iminodiacetic acid groups, and to the uses of this device and of the chelate resins for removal of fluoride from water.Type: GrantFiled: February 4, 2015Date of Patent: July 10, 2018Assignee: LANXESS Deutschland GmbHInventors: Stefan Neumann, Reinhold Klipper, Pavlos Makropoulos, Jenny Barbier, Maresa Schroeder
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Patent number: 9587076Abstract: A composition may include a thermosetting resin containing a plurality of polymer nanoparticles. At least some of the polymer nanoparticles may release either a catalyst or a hardener during a resin curing process. The catalyst or hardener may alter the reaction rate of the resin.Type: GrantFiled: September 23, 2014Date of Patent: March 7, 2017Assignee: The Boeing CompanyInventors: Mark S. Wilenski, Samuel J. Meure, Michael P. Kozar
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Patent number: 9249528Abstract: The invention is directed to a method of forming, producing or manufacturing functionalized nanomaterials, and, specifically, soluble functionalized nanomaterials. The presently described invention also relates to nanomaterial-based composites consisting of a target material, which can include ceramic, polymer, or metallic matrices incorporated into or grown on nanomaterials, as well as a method or synthesis technique for the formation, production, or manufacture of nanomaterial-based composites through microwave-induced reaction.Type: GrantFiled: July 2, 2010Date of Patent: February 2, 2016Assignee: New Jersey Institute of TechnologyInventors: Somenath Mitra, Zafar Iqbal
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Patent number: 9039870Abstract: The invention relates to a method for producing alkaline amides or imides of ethylenically unsaturated C3 to C6 carboxylic acids by reacting amines that contain at least one primary and/or secondary amino group and at least one tertiary amino group with ethylenically unsaturated C3 to C6 carboxlic acids to form an ammonium salt and said ammonium salt is subsequently converted into the alkaline amide or imide by means of microwave radiation, with the proviso that the primary and/or secondary amino group is devoid of alkoxy groups.Type: GrantFiled: October 5, 2007Date of Patent: May 26, 2015Assignee: Clariant Finance (BVI) LimitedInventors: Matthias Krull, Christoph Kayser, Roman Morschhaeuser, Helmut Ritter, Sarah Schmitz
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Patent number: 9023182Abstract: The present invention is directed to a method for making an enantiomeric organic compound having a high amount of enantiomer excesses including the steps of a) providing an aqueous solution including an initial reactant and a catalyst; and b) subjecting said aqueous solution simultaneously to a magnetic field and photolysis radiation such that said photolysis radiation produces light rays that run substantially parallel or anti-parallel to the magnetic field passing through said aqueous solution, wherein said catalyst reacts with said initial reactant to form the enantiomeric organic compound having a high amount of enantiomer excesses.Type: GrantFiled: July 2, 2014Date of Patent: May 5, 2015Assignee: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration (NASA)Inventor: George W. Cooper
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Publication number: 20150105559Abstract: Disclosed is a method for producing a compound having an amino group and/or a hydroxyl group from a substrate compound having an atomic group containing CO or CS by eliminating such atomic group. The substrate compound, having an atomic group containing CO or CS (for example, an amide, a carbamate, or the like), is allowed to react with a compound expressed by formula (I) below, at a temperature of 120° C. or lower, preferably in the presence of an ammonium salt, to eliminate such atomic group containing CO or CS. In formula (I) A may not be present, and in a case where A is present, A represents an alkyl group having 1 to 6 carbon atoms. H2N-A—NH2 (I) - - -.Type: ApplicationFiled: March 4, 2013Publication date: April 16, 2015Applicant: Kyushu University, National University CorporationInventors: Takashi Ohshima, Hiroyuki Morimoto, Yuhei Shimizu
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Patent number: 8957212Abstract: There is intended to provide the novel compounds which generate a base easily when irradiated with long wavelength light (active energy rays), a photobase generator containing the compounds and a photobase generation method, and the present invention relates to the compounds represented by the general formula [1], a photobase generator containing the compounds and a photobase generation method: (wherein, Ar represents any of groups with specific structures selected from the group consisting of an anthracenyl group, an anthraquinonyl group and a pyrenyl group; R1 and R2 each independently represent a hydrogen atom or a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms, or represent ones which can form an alicyclic ring containing nitrogen atom(s) or an aromatic ring containing nitrogen atom(s) together with a nitrogen atom to which they are bound, which the rings having 3 to 8 carbon atoms which may have a substituent, R3 and R4 each independently represent a hydrogen atom, a linear, brancType: GrantFiled: December 1, 2009Date of Patent: February 17, 2015Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Ayako Kuramoto, Motoshige Sumino, Nobuhiko Sakai
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Publication number: 20140374238Abstract: A precision volumetric liquid dispensing instrument is disclosed that includes two pressure sensors and a fluid passageway with a defined volume portion in communication with the two sensors for receiving and distributing liquid in relatively small volumes. One of the pressure sensors is positioned to measure pressure at one portion of the defined volume portion of the fluid passageway and the other of the gas pressure sensors is positioned to measure gas pressure at a different portion of the defined volume portion of the passageway. At least one valve is in communication with the passageway for moving fluids into or out of the defined volume portion of the fluid passageway, and a processor carries out a step selected from the group consisting of (i) calculating the volume of the liquid based upon the measured pressure and (ii) metering a liquid into the defined volume portion of the fluid passageway until the measured pressure indicates that a desired volume of fluid is in the fluid passageway.Type: ApplicationFiled: June 20, 2013Publication date: December 25, 2014Inventors: David L. Herman, Joseph J. Lambert
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Patent number: 8703111Abstract: This invention relates to a thermoplastic paste with a highly thixotropic rheology, the components of which are a block biopolymer and a bioceramic. The material described herein can be used in bone implants and in the regeneration of both animal and plant live tissues.Type: GrantFiled: May 6, 2009Date of Patent: April 22, 2014Assignees: Institut Quimic de Sarria Cets, Fundacio Privada, Universitat Ramon Llull, Fundacio PrivadaInventors: Salvador Borros Gómez, David Horna Tomás
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Publication number: 20130327633Abstract: A micro-analytical platform for performing electrophoresis-based immunoassays was developed by integrating photopolymerized cross-linked polyacrylamide gels within a microfluidic device. The microfluidic immunoassays are performed by gel electrophoretic separation and quantifying analyte concentration based upon conventional polyacrylamide gel electrophoresis (PAGE). To retain biological activity of proteins and maintain intact immune complexes, native PAGE conditions were employed. Both direct (non-competitive) and competitive immunoassay formats are demonstrated in microchips for detecting toxins and biomarkers (cytokines, c-reactive protein) in bodily fluids (serum, saliva, oral fluids). Further, a description of gradient gels fabrication is included, in an effort to describe methods we have developed for further optimization of on-chip PAGE immunoassays.Type: ApplicationFiled: August 6, 2013Publication date: December 12, 2013Applicant: Sandia CorporationInventors: Amy E. Herr, Anup K. Singh, Daniel J. Throckmorton
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Publication number: 20130228449Abstract: An instrument and method for accelerating the solid phase synthesis of peptides are disclosed. The method includes the steps of deprotecting a protected first amino acid linked to a solid phase resin by admixing the protected linked acid with a deprotecting solution in a microwave transparent vessel while irradiating the admixed acid and solution with microwaves, activating a second amino acid, coupling the second amino acid to the first acid while irradiating the composition in the same vessel with microwaves, and cleaving the linked peptide from the solid phase resin by admixing the linked peptide with a cleaving composition in the same vessel while irradiating the composition with microwaves.Type: ApplicationFiled: April 19, 2013Publication date: September 5, 2013Applicant: CEM CORPORATIONInventors: JONATHAN MCKINNON COLLINS, JOSEPH JOSHUA LAMBERT, MICHAEL JOHN COLLINS
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Patent number: 8496788Abstract: A method and a device for producing and storing electrical energy using iron complexes, using an iron +III molecular complex as well as a photoreduced iron +II complex, both complexed chemically by a ligand of the benzoic hydrazide type.Type: GrantFiled: April 21, 2009Date of Patent: July 30, 2013Assignee: IS2 S.A.S.Inventor: Richard Welter
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Publication number: 20130184442Abstract: The present invention relates to site-specific labeling of antibodies or fragments thereof with one or more reporter group(s) in a way that does not affect antigen binding. The method for labeling antibodies and/or fragments thereof, comprises the following steps a) providing an IgG binding protein, which comprises ?-helix structures, with a photoactivatable group and at least one label; b) forming a mixture of said IgG binding protein and the antibodies and/or fragments to be labeled; and c) UV illuminating said mixture for site-specific labeling of said antibodies and/or fragments thereof. The IgG binding protein is preferably the Z domain of Protein A.Type: ApplicationFiled: September 5, 2011Publication date: July 18, 2013Applicant: GE HEALTHCARE BIO-SCIENCES ABInventors: Sophia Hober, Amelie Eriksson Karlstrom, Anna Konrad
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Publication number: 20120296085Abstract: Chemiluminescent compounds that can be activated by reaction with chemical or photochemical sources of singlet oxygen are provided. At certain temperatures, such as from approximately 15 to 60° C., the compounds slowly return to their deactivated state by emitting visible and/or infrared light that is observable with various types of light detectors. Suitable conjugates of these compounds, or small particles containing these compounds, may be used for chemiluminescence imaging and sensing technologies. In particular, embodiments provide optical molecular imaging using novel squaraine rotaxane endoperoxides (SREPs) and squaraine catenane endoperoxides (SCEPs), interlocked fluorescent and chemiluminescent dye molecules that have a squaraine chromophore encapsulated inside a macrocycle endoperoxide. The dyes may be stored at low temperature, such as below 0° C., but, upon warming above 15° C.Type: ApplicationFiled: June 1, 2010Publication date: November 22, 2012Applicant: University of Notre Dame du LacInventor: Bradley Smith
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Publication number: 20120289711Abstract: The present invention relates to a method for producing carbon nanomaterials and/or carbon micromaterials, in particular multi-wall carbon nanotubes. This method is characterized according to the invention in that the materials, in particular the side walls of the materials, undergo microwave-assisted functionalization. In addition, a correspondingly modified material is described.Type: ApplicationFiled: October 25, 2010Publication date: November 15, 2012Applicant: FUTURECARBON GMBHInventors: Jens Helbig, Christian Zenkel
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Publication number: 20120234669Abstract: This invention relates to a precast gel for electrophoresis comprising a support filled with an aqueous gel prepared by polymerizing an aqueous solution comprising a radically polymerizable monomer, a crosslinkable monomer, a buffer, a redox initiator comprising an oxidizer/reducer, and a photo sensitizer and having a pH level of 6.0 to 7.5 via light application. The slab gel for electrophoresis of the present invention can produce a precast gel for electrophoresis within a shorter period of time and in an easier manner than is possible with conventional techniques. Accordingly, the present invention enables production of a high-quality precast gel for electrophoresis in terms of productivity, cost, and quality, and the industrial applicability thereof is remarkable.Type: ApplicationFiled: May 31, 2012Publication date: September 20, 2012Applicant: HYMO CORPORATIONInventors: Kazuhisa SUZUKI, Mika SUZUKI, Yukiko MINEGISHI
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Patent number: 8101785Abstract: The invention relates to a method for producing fatty acid alkanol amides by reacting at least one amine that contains at least one primary or secondary amino group and at least one hydroxyl group with at least one fatty acid to form an ammonium salt, said ammonium salt being subsequently converted into the alkanol amide by means of microwave radiation.Type: GrantFiled: October 5, 2007Date of Patent: January 24, 2012Assignee: Clariant Finance (BVI) LimitedInventors: Matthias Krull, Roman Morschhaeuser, Peter Klug, Alexander Lerch, Christoph Kayser, Helmut Ritter, Sarah Schmitz
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Patent number: 8052848Abstract: The invention relates generally to chemical reactions and processes, and in particular to a method for enhancing the rate of a chemical reaction and to apparatus for carrying out the method. The invention more particularly relates to methods and apparatus which utilize microwave and ultrasonic energy to enhance chemical reaction rates; and in specific instances, the invention relates to methods, processes and apparatus for the synthesis of biodiesel fuels. The methods, processes and apparatus of the invention are useful for the synthesis of biodiesel fuels; and also useful for production of reaction products of esterification and/or transesterification reactions including fatty acid alkyl esters.Type: GrantFiled: June 26, 2008Date of Patent: November 8, 2011Assignee: The Penn State Research FoundationInventor: Matthew M. Kropf
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Publication number: 20110233048Abstract: There is intended to provide the novel compounds which generate a base easily when irradiated with long wavelength light (active energy rays), a photobase generator containing the compounds and a photobase generation method, and the present invention relates to the compounds represented by the general formula [1], a photobase generator containing the compounds and a photobase generation method: (wherein, Ar represents any of groups with specific structures selected from the group consisting of an anthracenyl group, an anthraquinonyl group and a pyrenyl group; R1 and R2 each independently represent a hydrogen atom or a linear, branched or cyclic alkyl group having 1 to 10 carbon atoms, or represent ones which can form an alicyclic ring containing nitrogen atom(s) or an aromatic ring containing nitrogen atom(s) together with a nitrogen atom to which they are bound, which the rings having 3 to 8 carbon atoms which may have a substituent, R3 and R4 each independently represent a hydrogen atom, a linear, brancType: ApplicationFiled: December 1, 2009Publication date: September 29, 2011Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Ayako Kuramoto, Motoshige Sumino, Nobuhiko Sakai
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Publication number: 20110226610Abstract: Inventors have developed a chromophore (nitrodibenzylfuranyl, or NBDF) for ultra efficient uncaging of a caged substrate (e.g., an organic molecule such as, for example, an amino acid, a biological molecules, such as, for example, second messengers inside cells). Photolysis of a NBDF derivative of EGTA (i.e. caged calcium) is about 50 times more efficient than others calcium cages (the quantum yield of photolysis is 0.6 and the extinction coefficient is 18,400. NDBF-EGTA has a 2-photon cross section of about 0.3-0.6 GM).Type: ApplicationFiled: February 18, 2011Publication date: September 22, 2011Applicant: Philadelphia Health & Education Corporation d/b/a Drexel University College of MedicineInventors: Graham Ellis-Davies, Atsuya Momotake
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Publication number: 20110195028Abstract: The presently disclosed subject matter demonstrates that a spin state which has zero magnetic resonance signal, but an extremely long lifetime, can be used to store magnetization, which can then be recovered into an observable transition. Coupled with hyper-polarization techniques, this permits the preparation of a wide range of contrast agent molecules for use in magnetic resonance imaging (MRI) techniques that have long effective relaxation time.Type: ApplicationFiled: July 31, 2009Publication date: August 11, 2011Inventor: Warren S. Warren
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Patent number: 7993494Abstract: A novel synthesis method of a triarylpyrazine derivative, in particular, a manufacturing method by which a triarylpyrazine derivative, in specific, a 2,3,5-triarylpyrazine derivative in which an aryl group at a 5-position includes a substituent having an electron-withdrawing property can be synthesized with high yield as compared to a conventional method is provided. By using a synthesis method in which a mixture including a 1-aryl-2-(methylsulfinyl)ethanone derivative, meso-1,2-diarylethylenediamine, and a dehydrogenation agent is irradiated with a microwave to be reacted, the above object is achieved.Type: GrantFiled: January 15, 2009Date of Patent: August 9, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideko Inoue, Hiroko Nomura
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Publication number: 20110130290Abstract: This invention relates to a thermoplastic paste with a highly thixotropic rheology, the components of which are a block biopolymer and a bioceramic. The material described herein can be used in bone implants and in the regeneration of both animal and plant live tissues.Type: ApplicationFiled: May 6, 2009Publication date: June 2, 2011Applicants: INSTITUT QUIMIC DE SARRIA CETS, FUNDACIO PRIVADA, UNIVERSITAT RAMON LLULL, FUNDACIO PRIVADAInventors: Salvador Borros Gomez, David Horna Tomas
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Publication number: 20110105760Abstract: The present invention relates to a process for preparing substituted 2-aminobiphenyls and to a process for preparing (Het)arylamides of such 2-aminobiphenyls.Type: ApplicationFiled: July 3, 2009Publication date: May 5, 2011Applicant: BASF SEInventors: Michael Keil, Michael Rack, Thomas Zierke, Markus Heinrich, Alexander Wetzel
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Publication number: 20110083957Abstract: The invention relates to a continuous method for producing hydroxycarboxylic acid amides, according to which at least one hydroxycarboxylic acid of formula (I) HO—R3—COOH??(I) wherein R3 is an optionally substituted aliphatic hydrocarbon group comprising between 1 and 100 carbon atoms, is reacted with at least one amine of formula (II) HNR1R2??(II) wherein R1 and R2 are independently hydrogen or a carbon group comprising between 1 and 100 C atoms, to form an ammonium salt, and said ammonium salt is then reacted to form a hydroxycarboxylic acid amide, under microwave irradiation in a reaction pipe, the longitudinal axis of the pipe being oriented in the direction of propagation of the microwaves of a monomode microwave applicator.Type: ApplicationFiled: March 18, 2009Publication date: April 14, 2011Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Matthias Krull, Roman Morschhaeuser, Joachim Hess, Robert Milbradt, Franz-Xaver Scherl, Andreas Wacker, Michael Seebach, Joerg Appel
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Publication number: 20110045553Abstract: A process for converting tryptophan into kynurenine. The conversion of tryptophan into kynurenine is carried out by irradiating a substance comprising tryptophan with electromagnetic radiation comprising waves with wavelength in the range of 10 nanometer to 750 nanometer.Type: ApplicationFiled: May 5, 2009Publication date: February 24, 2011Applicant: HUNTSMAN INTERNATIONAL LLCInventors: Johan Sanders, Francisc Peter, Elinor Scott, Mohamed Hamdy Saad, Robert Henry Carr
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Publication number: 20110004003Abstract: A novel high-performance material is provided. A certain aspect of the present invention lies in a 2,3-bis(N,N-bis(p-anisyl)4-aminophenylethynyl)dimethylfumarate producing method, characterized by illuminating light onto 2,3-bis(N,N-bis(p-anisyl)4-aminophenylethynyl)dimethylmaleate. Also, a further certain aspect of the present invention lies in a 2,3-bis(N,N-bis(p-anisyl)4-aminophenylethynyl)dimethylmaleate producing method, characterized by illuminating light onto 2,3-bis(N,N-bis(p-anisyl)4-aminophenylethynyl)dimethylfumarate. According to this constitution, there can be obtained a high-performance material by a simple technique.Type: ApplicationFiled: August 1, 2008Publication date: January 6, 2011Applicant: The University of TokyoInventors: Hiroshi Nishihara, Ryota Sakamoto
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Publication number: 20100326813Abstract: The invention is directed to a method of forming, producing or manufacturing functionalized nanomaterials, and, specifically, soluble functionalized nanomaterials. The presently described invention also relates to nanomaterial-based composites consisting of a target material, which can include ceramic, polymer, or metallic matrices incorporated into or grown on nanomaterials, as well as a method or synthesis technique for the formation, production, or manufacture of nanomaterial-based composites through microwave-induced reaction.Type: ApplicationFiled: July 2, 2010Publication date: December 30, 2010Applicant: NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Somenath Mitra, Zafar Iqbal
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Patent number: 7767063Abstract: Transparent monolithic aerogels based on silica, the bioderived polymer chitosan, and coordinated ions are employed to serve as a three-dimensional scaffold decorated with metal ions such as Au, Pt and Pd ions. It has also been found that the metal aerogels, such as Au(III) aerogels, can be imaged photolytically to produce nanoparticles.Type: GrantFiled: July 3, 2007Date of Patent: August 3, 2010Assignee: Brown UniversityInventors: William M. Risen, Jr., Xipeng Liu, Chunhua Yao, Yu Zhu
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Publication number: 20100116642Abstract: The invention relates to a method for producing alkaline fatty acid amides by reacting at least one amine that contains at least one primary or secondary amino group and at least one tertiary amino group with at least one fatty acid to form an ammonium salt, said ammonium salt being subsequently converted into the alkaline amide by means of microwave radiation.Type: ApplicationFiled: October 5, 2007Publication date: May 13, 2010Applicant: Clariant Finance (BVI) LimitedInventors: Matthias Krull, Roman Morschhaeuser, Christoph Kayser, Helmut Ritter, Sarah Schmitz
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Publication number: 20100032284Abstract: The invention relates to a method for producing alkaline amides or imides of ethylenically unsaturated C3 to C6 carboxylic acids by reacting amines that contain at least one primary and/or secondary amino group and at least one tertiary amino group with ethylenically unsaturated C3 to C6 carboxlic acids to form an ammonium salt and said ammonium salt is subsequently converted into the alkaline amide or imide by means of microwave radiation, with the proviso that the primary and/or secondary amino group is devoid of alkoxy groups.Type: ApplicationFiled: October 5, 2007Publication date: February 11, 2010Inventors: Matthias Krull, Christoph Kayser, Roman Morschhaeuser, Helmut Ritter, Sarah Schmitz
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Publication number: 20090071817Abstract: Chemical compositions may be selectively or preferentially excited by the application of scores comprising a series of energy inputs.Type: ApplicationFiled: November 19, 2008Publication date: March 19, 2009Applicant: Searete LLCInventors: Muriel Y. Ishikawa, Edward K.Y. Jung, Nathan P. Myhrvold, Lowell L. Wood, JR.
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Patent number: 7238261Abstract: Transparent monolithic aerogels based on silica, the bioderived polymer chitosan, and coordinated ions are employed to serve as a three-dimensional scaffold decorated with metal ions such as Au, Pt and Pd ions. It has also been found that the metal aerogels, such as Au(III) aerogels, can be imaged photolytically to produce nanoparticles.Type: GrantFiled: November 26, 2004Date of Patent: July 3, 2007Assignee: Brown Technology PartnershipsInventors: William M. Risen, Jr., Xipeng Liu, Chunhua Yao, Yu Zhu
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Patent number: 7122642Abstract: A method to prepare new or unexpected polymorphs of materials which have not been observed, or to obtain a known polymorph under different conditions than those in which it is usually made, by using a laser to cause nucleation and crystal growth to occur in a supersaturated solution in such a way as to obtain a crystal structure which would not normally appear without the use of the laser.Type: GrantFiled: January 24, 2002Date of Patent: October 17, 2006Assignee: Polytechnic UniversityInventors: Allan S. Myerson, Bruce A. Garetz
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Patent number: 6759521Abstract: A method to select and prepare polymorphs of materials by switching the polarization state of light employing non-photochemical laser-induced nucleation.Type: GrantFiled: September 28, 2001Date of Patent: July 6, 2004Inventors: Allan S. Myerson, Bruce A. Garetz
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Publication number: 20030162993Abstract: The invention relates to novel diazoketone derivatives. The invention also relates to processes for homologation of these diazoketone derivatives. The processes are useful for preparing compounds that are caspase inhibitors.Type: ApplicationFiled: October 9, 2002Publication date: August 28, 2003Inventors: Michael Mortimore, Oliver Philps, John Studley
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Patent number: 6426406Abstract: A method to prepare new or unexpected polymorphs of materials which have not been observed, or to obtain a known polymorph under different conditions than those in which it is usually made, by using a laser to cause nucleation and crystal growth to occur in a supersaturated solution in such a way as to obtain a crystal structure which would not normally appear without the use of the laser.Type: GrantFiled: October 23, 2000Date of Patent: July 30, 2002Inventors: Allan S. Myerson, Bruce A. Garetz
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Patent number: 6383344Abstract: A method for reducing the molecular weight of polymer comprises subjecting a solid phase polymer to a dose of gamma irradiation sufficient to permit the desired molecular weight reduction to occur.Type: GrantFiled: July 19, 2000Date of Patent: May 7, 2002Assignee: Genzyme CorporationInventors: Robert J. Miller, Aviva Shiedlin
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Patent number: 6328855Abstract: A process for preparing (+)-exo-6-phenyl-3-azabicyclo[3.2.0]heptanes of the formula I where R is hydrogen, chlorine, bromine, fluorine or methoxy, which comprises photocyclizing a bisallylammonium salt of the formula II where R has the meanings given above and X− is an anion, in an inert solvent in a glass apparatus with addition of sensitizer and precipitating using (−)-ditoluoyltartaric acid the desired (+)-exo-isomer I as ditoluoyltartrate from the resulting mixture, with or without recrystallization of this tartrate from an alcohol/water mixture.Type: GrantFiled: April 11, 2001Date of Patent: December 11, 2001Assignee: BASF AktiengesellschaftInventors: Norbert Bischof, Ernst Buschmann, Michael Henningsen, Georg Arnold Krei, Rainer Munschauer, Thomas Pfeiffer, Gerd Steiner, Wolfgang Viergutz