Carbodiimides (i.e., Hn=c=nh, Wherein Substitution May Be Made For Hydrogen Only) Patents (Class 564/252)
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Patent number: 12017977Abstract: A method for producing a carbodiimide compound, comprising a carbodiimide production step of reacting an aliphatic tertiary isocyanate compound (A) in the presence of an organic alkali metal compound (B) having Lewis basicity.Type: GrantFiled: December 6, 2022Date of Patent: June 25, 2024Assignee: NISSHINBO CHEMICAL INC.Inventors: Nobuyuki Matsumoto, Kenichi Yanagisawa
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Patent number: 11975091Abstract: A composition for enhancing protein strength according to the present invention contains an aminosilane compound capable of covalent binding with a protein of hair, scalp, skin, nails, leather, or textile, so that the protein and the amino silane compound form a covalent bond, and thus the composition can improve the protein strength enhancement effect and maximize the semi-permanent protein strength enhancement effect.Type: GrantFiled: September 10, 2021Date of Patent: May 7, 2024Assignee: LG Household & Health Care Ltd.Inventors: Seong Kil Son, Won Kyung Choi, Dong Wan Kim, Ji Hee Yoo, Jeong Rae Lee, Sang Min Lee
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Patent number: 11684700Abstract: A composite material can include a gel and at least one nanostructure disposed within the gel. A method for healing a soft tissue defect can include applying a composite material to a soft tissue defect, wherein the composite material includes a gel and a nanostructure disposed within the gel. A method for manufacturing a composite material for use in healing soft tissue defects can include providing a gel and disposing nanofibers within the gel.Type: GrantFiled: June 23, 2022Date of Patent: June 27, 2023Assignee: The Johns Hopkins UniversityInventors: Xuesong Jiang, Sashank Reddy, Gerald Brandacher, Hai-Quan Mao, Justin Sacks, Xiaowei Li, Kevin Feng, Russell Martin, Georgia C. Yalanis, Ji Suk Choi
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Patent number: 10993917Abstract: There is provided a nanocomplex having a core-shell structure. The shell of the nanocomplex comprises a functionalized hyaluronic acid while the core of the nanocomplex comprises a flavonoid encapsulating a metal-containing compound. Preferably, the flavonoid is epigallocatechin gallate (EGCG) and the hyaluronic acid is thiol-functionalized and subsequently conjugated to the flavonoid. There is also provided a method of forming the nanocomplex, a pharmaceutical composition comprising the nanocomplex, medical uses of the nanocomplex and a method of treating a patient, preferably with cancer using the nanocomplex.Type: GrantFiled: December 29, 2017Date of Patent: May 4, 2021Assignee: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCHInventors: Motoichi Kurisawa, Ki Hyun Bae, Susi Tan
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Patent number: 10815383Abstract: This disclosure provides a pigmented primer composition for forming an n-acyl urea coating on a substrate. The pigmented primer composition includes a polycarbodiimide-polyurethane hybrid. The pigmented primer composition also includes an acid functional polymer and an organic solvent, and includes less than or equal to 10 weight percent of water based on a total weight of the pigmented primer composition. The pigmented primer composition also includes a pigment, an inorganic filler, and less than about 100 parts by weight of toluene diisocyanate per one million parts by weight of the pigmented primer composition. The n-acyl urea coating exhibits corrosion resistance of 2 to 10 as determined using ASTM B117 and ASTM D-1654-08 on a substrate that is unpolished cold rolled steel, aluminum, or galvanized steel.Type: GrantFiled: July 29, 2016Date of Patent: October 27, 2020Assignee: BASF SEInventors: Rajesh Kumar, Vincent Goldman, Sunitha Grandhee
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Patent number: 10392659Abstract: The invention provides a novel class of cyanine dyes that are functionalized with sulfonic acid groups and a linker moiety that facilitates their conjugation to other species and substituent groups which increase the water-solubility, and optimize the optical properties of the dyes. Also provided are conjugates of the dyes, methods of using the dyes and their conjugates and kits including the dyes and their conjugates.Type: GrantFiled: September 12, 2016Date of Patent: August 27, 2019Assignee: Pacific Biosciences of California, Inc.Inventors: Stephen Yue, Gene Shen, Wei-Chuan (David) Sun
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Patent number: 9534141Abstract: A compressible substrate coated at least in part with a waterborne coating composition comprising at least one base neutralized active hydrogen containing film-forming resin and a water dispersible carbodiimide crosslinker capable of reacting with the film-forming resin to form a crosslinked film is disclosed. An article of manufacture having at least two different flexible substrates coated at least in part with such a coating is also disclosed.Type: GrantFiled: January 7, 2013Date of Patent: January 3, 2017Assignee: PPG Industries Ohio, Inc.Inventors: Ronald R. Ambrose, Anthony M. Chasser, Mary Ann M. Fuhry, Hongying Zhou, Gregory J. McCollum, Irina G. Schwendeman
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Patent number: 8853442Abstract: A resin crosslinking agent that is capable of enhancing the scuffing resistance and the chemical resistance upon adding a carbodiimide compound as a crosslinking agent to an aqueous resin. The resin crosslinking agent contains: a carbodiimide compound having at least one carbodiimide group, having terminals that are capped with at least one compound (hydrophilic organic compound I) selected from a dialkylamino alcohol, a hydroxycarboxylic acid alkyl ester and a (poly)alkylene glycol monoalkyl ether, and with a compound (hydrophilic organic compound II) that has higher hydrophilicity than the hydrophilic organic compound I and has at least one hydroxyl group; and a water-miscible liquid compound.Type: GrantFiled: December 24, 2010Date of Patent: October 7, 2014Assignee: Nisshinbo Holdings, Inc.Inventors: Kenichi Yanagisawa, Saori Kotani
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Publication number: 20140121412Abstract: The invention relates to innovative carbodiimides, to a process for preparing them and to the use thereof as stabilizer, crosslinker and/or compatibilizer in thermoplastics, ester-based polyols for polyurethane applications, in rigid foam, in flexible foam or, for example, in CASE (Coatings Adhesives Sealants Elastomers) applications.Type: ApplicationFiled: April 27, 2012Publication date: May 1, 2014Applicant: RHEIN CHEMIE RHEINAU GMBHInventors: Wilhelm Laufer, Benjamin Bechem, Armin Eckert
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Publication number: 20130338245Abstract: A method for extracting nucleic acids from a biological material such as blood comprises contacting the mixture with a material at a pH such that the material is positively charged and will bind negatively charged nucleic acids and then eluting the nucleic acids at a pH when the said materials possess a neutral or negative charge to release the nucleic acids. The nucleic acids can be removed under mildly alkaline conditions to the maintain integrity of the nucleic acids and to allow retrieval of the nucleic acids in reagents that are immediately compatible with either storage or analytical testing.Type: ApplicationFiled: May 20, 2013Publication date: December 19, 2013Applicant: LIFE TECHNOLOGIES CORPORATIONInventor: Matthew BAKER
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Publication number: 20130137852Abstract: The present invention relates to process for preparation of novel compounds which are acting as inhibitors of dipeptidyl peptidase-IV enzyme and is depicted by the structural formula as given below: Formula VI. Which are useful in the treatment or prevention of diseases in which the dipeptidylpeptidase-IV enzyme is involved, such as diabetes and particularly type-2 diabetes.Type: ApplicationFiled: August 3, 2011Publication date: May 30, 2013Applicant: Cadila Corporate CampusInventors: Bakulesh Mafatlal Khamar, Nirav Kishorbhai Joshi, Chandan Hardhan Singh, Uday Rajaram Bapat, Bipin Dhanjibhai Gadhiya, Nirav Sureshbhai Sagar, Indravadan Ambalal Modi
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Publication number: 20120261257Abstract: Design of a disposable screen printed electrode (SPE) for sensing percentage glycated hemoglobin using electrochemistry is disclosed. SPE has four electrodes, one working electrode for the detection of glycated hemoglobin, one working electrode for the detection of hemoglobin and the other two electrodes are counter and reference electrodes that are common for both detection schemes. It also has a cellulose acetate membrane with lysis agents and surfactant embedded in it. Lysis agents lyse erythrocytes and release hemoglobin. Surfactants modify hemoglobin structure and enhance the rate the electron transfer and thereby the output signal during the electrochemical analysis. The SPE is low cost and user friendly. The only input from the user is a drop of blood.Type: ApplicationFiled: April 18, 2012Publication date: October 18, 2012Applicant: INDIAN INSTITUTE OF SCIENCEInventors: Siva Rama Krishna Vanjari, Navakanta Bhat, Sampath Srinivasan, Bharadwaj Amrutur, Chakrapani Kalapu, Amit Kumar Mandal
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Publication number: 20120073472Abstract: The invention relates to reactive derivatives on the basis of dianhydrohexitol-based isocyanates.Type: ApplicationFiled: April 28, 2010Publication date: March 29, 2012Applicant: EVONIK DEGUSSA GMBHInventors: Emmanouil Spyrou, Jan Pfeffer, Holger Loesch, Marion Ebbing-Ewald, Heinz Grosse-Beck
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Publication number: 20110207927Abstract: The present invention relates to novel 1,4,2-diazaphospholidine derivatives, to a process for preparation thereof and to use as catalysts.Type: ApplicationFiled: September 24, 2009Publication date: August 25, 2011Applicant: Bayer MaterialScience AGInventor: Frank Richter
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Publication number: 20110172321Abstract: The invention relates to innovative viscosity stabilizers for hotmelts, to melt-viscosity-stable hotmelts comprising these viscosity stabilizers, to a process for preparing them and to their use.Type: ApplicationFiled: October 6, 2010Publication date: July 14, 2011Applicant: RHEIN CHEMIE RHEINAU GmbHInventors: Wilhelm Laufer, Bernd Kray, Peter Schuster, Christian Scheffner, Serdar Uestuenbas, Marc Leimenstoll, Peter Reichert, Eduard Mayer, Matthias Wintermantel
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Publication number: 20110112230Abstract: The invention relates to new formaldehyde scavengers, a process for reducing the amount of formaldehyde by adding these scavengers and their use.Type: ApplicationFiled: September 3, 2010Publication date: May 12, 2011Applicants: RHEIN CHEMIE RHEINAU GMBH, RHEIN CHEMIE CORPORATIONInventors: Ana Maria Cano Sierra, Jeffrey A. Russell
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Patent number: 7919149Abstract: It is the purpose of the present invention to provide a carbodiimide compound exhibiting superior water resistance and having good storage stability when it is applied to a waterborne coating composition, and a waterborne curable resin composition comprising thereof, and the carbodiimide compound of the present invention is represented by the following general formula (1): wherein X represents a bifunctional organic group containing at least one carbodiimide group, Y represents a structure in which a hydroxyl group is eliminated from a polyalkylene glycol monoalkyl ether, R0 represents hydrogen or an alkyl group having 2 or less carbon atoms, R1 represents an alkylene group having 4 or less carbon atoms, n represents 0 or 1 and m represents an integer of 11 or more, and wherein the repeating number of oxyalkylene group in the polyalkylene glycol monoalkyl ether is 6 to 40.Type: GrantFiled: November 17, 2006Date of Patent: April 5, 2011Assignee: Nippon Paint Co., Ltd.Inventors: Koichi Sato, Yutaka Harada, Takehito Sasaoka
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Publication number: 20110021679Abstract: A water-soluble or water-dispersible carbodiimide compound is hydrophilicized by incorporating methyl glycolate or methyl lactate, which serves a moiety similar to the moiety which aqueous urethane resin, aqueous acrylic resin, or the like possesses, into an end of a starting carbodiimide compound. The invention provides a carbodiimide compound and a carbodiimide composition, which, when added as a cross-linking agent to aqueous resin, can enhance water resistance, solvent resistance, and adhesion of the resin, while maintaining the conventionally attained pot life, and an aqueous coating composition containing the carbodiimide compound or composition.Type: ApplicationFiled: March 17, 2009Publication date: January 27, 2011Inventors: Ikuo Takahashi, Kenichi Yanagisawa, Noriko Osuga
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Publication number: 20100237298Abstract: The present invention is concerned with novel compounds derived from polyquinonic ionic compounds and their use in electrochemical generators.Type: ApplicationFiled: June 2, 2010Publication date: September 23, 2010Inventors: Michel Armand, Christophe Michot, Nathalie Ravet
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Publication number: 20100222477Abstract: A filler for substrates which comprises an inorganic substance and a carbodiimide-group-containing organic layer chemically bonded to the surface of the inorganic substance. Examples of the carbodiimide-group-containing organic layer include a layer comprising a carbodiimide-group-containing compound represented by either of the following formulae. Due to the constitution, the filler for substrates can be highly dispersed in a resin for substrates even when added in a high proportion and can give a substrate inhibited from deteriorating in electrical properties, mechanical properties, etc. (X1)m—Z-[A-(R1—N?C?N)n—R1—NCO]1 ??(1) (X1)m—Z-[A-(R1—N?C?N)n—R1-A-Z—(X2)3]1 ??(2) [R1 represents a residue of an isocyanate compound; X? and X2 each independently represents hydrogen, halogeno, etc.Type: ApplicationFiled: June 21, 2006Publication date: September 2, 2010Applicant: NISSHINBO INDUSTRIES, INC.Inventors: Nami Tsukamoto, Toshifumi Hashiba, Mayumi Mizushiri
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Publication number: 20100204515Abstract: Disclosed are polycarbodiimides having onium salt groups, as well as methods for their production.Type: ApplicationFiled: February 12, 2009Publication date: August 12, 2010Applicant: PPG Industries Ohio, Inc.Inventors: Anthony M. Chasser, Lawrence J. Fitzgerald, Venkateshwarlu Kalsani
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Publication number: 20100160512Abstract: A flame retardant which comprises an inorganic hydroxide and a carbodiimide-group-containing organic layer chemically bonded to the surface of the inorganic hydroxide. Examples of the carbodiimide-group-containing organic layer include a layer comprising a carbodiimide-group-containing compound represented by either of the following formulae. Due to the constitution, the flame retardant can be highly dispersed in a resin even when added in a high proportion and can give a molding inhibited from deteriorating in electrical properties, mechanical properties, etc. (X1)m-Z-[A-(R1—N?C?N)n—R1—NCO]1??(1) (X1)m-Z-[A-(R1—N?C?N)n—R1-A-Z-(X2)3])3??(2) [R1 represents a residue of an isocyanate compound; X1 and X2 each independently represents hydrogen, halogeno, etc.Type: ApplicationFiled: June 21, 2006Publication date: June 24, 2010Applicant: NISSHINBO INDUSTRIES, INC.Inventors: Nami Tsukamoto, Toshifumi Hashiba, Mayumi Mizushiri
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Patent number: 7723545Abstract: The present invention provides a method for the production of free-flowing additive compounds that comprises the steps of preparation of a particulate additive compound and storage of a mass of the particulate additive compound at a surface pressure of at least 30 g/cm2 until the mass of additive compound is baked together. Then follows the crushing of the baked-together mass of the additive compound into a crushed particulate additive compound and the sieving of the crushed particulate additive compound, whereby particles of a size in excess of 4.0 mm and particles of a size of less than 0.1 mm are separated from the crushed particulate additive compound such that a fraction containing a free-flowing additive compound with long-term stability of particle sizes is obtained.Type: GrantFiled: October 23, 2008Date of Patent: May 25, 2010Assignee: Raschig GmbHInventors: Steffen Denzinger, Frank Harréus, Alexander Schmitt
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Publication number: 20100016634Abstract: Disclosed is a method for stabilizing a carbodiimide derivative (1) which is a condensing agent useful for production of general synthetic chemical products. Also disclosed is a stabilized composition of the carbodiimide derivative. The method is characterized in that the carbodiimide derivative (1) is handled in an atmosphere wherein the concentration of molecular oxygen in the gas phase within a container is set at not more than 3% by volume and/or in the co-presence of at least one compound selected from the group consisting of antioxidants, N-oxyl compounds, sulfur compounds, amines and Lewis acids.Type: ApplicationFiled: August 30, 2007Publication date: January 21, 2010Applicants: Kaneka Corporation, Osaka Synthetic Chemical Laboratories, Inc.Inventors: Kunihiko Seno, Masao Okuda, Hiroaki Kawasaki, Tadashi Moroshima, Yasuyoshi Ueda
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Patent number: 7569726Abstract: Compounds of Formula I are useful inhibitors of HIF prolyl hydroxylases. Compounds of Formula I have the following structure: where the definitions of the variables are provided herein.Type: GrantFiled: April 9, 2008Date of Patent: August 4, 2009Assignee: Amgen Inc.Inventors: Jennifer R. Allen, Roland Burli, Jennifer E. Golden, Kristine M. Muller, Anthony B. Reed
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Patent number: 7563837Abstract: Thiocarbamides comprising at least one carbodiimide group and at least one thiocarbamic ester group of the formulaType: GrantFiled: March 4, 2005Date of Patent: July 21, 2009Assignee: BASF AktiengesellschaftInventors: Andre Burghardt, Karl Haeberle, Ulrike Licht, Karl-Heinz Schumacher
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Publication number: 20090171016Abstract: It is the purpose of the present invention to provide a carbodiimide compound exhibiting superior water resistance and having good storage stability when it is applied to a waterborne coating composition, and a waterborne curable resin composition comprising thereof, and the carbodiimide compound of the present invention is represented by the following general formula (1): wherein X represents a bifunctional organic group containing at least one carbodiimide group, Y represents a structure in which a hydroxyl group is eliminated from a polyalkylene glycol monoalkyl ether, R0 represents hydrogen or an alkyl group having 2 or less carbon atoms, R1 represents an alkylene group having 4 or less carbon atoms, n represents 0 or 1 and m represents an integer of 11 or more, and wherein the repeating number of oxyalkylene group in the polyalkylene glycol monoalkyl ether is 6 to 40.Type: ApplicationFiled: November 17, 2006Publication date: July 2, 2009Inventors: Koichi Sato, Yutaka Harada, Takehito Sasaoka
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Publication number: 20090112023Abstract: The present invention provides a method for the production of free-flowing additive compounds that comprises the steps of preparation of a particulate additive compound and storage of a mass of the particulate additive compound at a surface pressure of at least 30 g/cm2 until the mass of additive compound is baked together. Then follows the crushing of the baked-together mass of the additive compound into a crushed particulate additive compound and the sieving of the crushed particulate additive compound, whereby particles of a size in excess of 4.0 mm and particles of a size of less than 0.1 mm are separated from the crushed particulate additive compound such that a fraction containing a free-flowing additive compound with long-term stability of particle sizes is obtained.Type: ApplicationFiled: October 23, 2008Publication date: April 30, 2009Inventors: Steffen Denzinger, Frank Harreus, Alexander Schmitt
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Patent number: 7439395Abstract: The present invention relates to a two-step process for the preparation of guanidinium salts of the formula (1), where the substituents R have a meaning indicated in Claim, and A? is a sulfonate, alkyl- or arylsulfate, hydrogensulfate, imide, methanide, carboxylate, phosphate, phosphinate, phosphonate, borate, thiocyanate, perchlorate, fluorosilicate or nitrate, and to intermediate compounds from this process.Type: GrantFiled: January 17, 2005Date of Patent: October 21, 2008Assignee: Merck Patent GmbHInventors: Nikolai (Mykola) Ignatyev, Urs Welz-Biermann, German Bissky, Helge Willner
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Patent number: 7252710Abstract: A pigment dispersion composition which can be suitably applied in such fields as color filters, black matrices and ink jet recording where it is necessary to finely disperse pigments still with retention of good dispersion stability and temporal stability even when the total amount a pigment derivative, pigment intermediate, colorant derivative and colorant intermediate, and/or a pigment dispersant is small. Another object is a pigment dispersion-based resist composition which can give color filters high in permeability, excellent in contrast and causing no bleeding or black matrices high in light-shielding and insulating properties, and causing no bleeding.Type: GrantFiled: June 26, 2003Date of Patent: August 7, 2007Assignee: Sakata Inx Corp.Inventors: Masanori Kano, Kazunori Itoh, Takaaki Yodo
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Patent number: 7220307Abstract: A treated pigment and a dispersion composition thereof having preferable dispersion stability and fluidity in a dispersion medium even the pigment has no functional group reactive with a carbodiimide group on the surface thereof, and further to provide a resist composition exerting very excellent developing characteristics when forming color filters, black matrices and the like patterns. Furthermore, the invention also provides a compound for pigment treatment suited for the treatment of such pigment. A treated pigment which is producible by the treatment with a carbodiimide-based compound having at least one side chain selected from the group consisting of polyester side chains, polyether side chains and polyacrylic side chains and at least one basic nitrogen-containing group within the molecule.Type: GrantFiled: June 25, 2003Date of Patent: May 22, 2007Assignee: Sakata Inx Corp.Inventors: Masanori Kano, Kazunori Itoh, Takaaki Yodo, Naoyuki Kitaoka, Hideo Shibata
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Patent number: 7220306Abstract: The present invention provides a treated pigment produced by treating at least one pigment selected from the group consisting of organic pigments and carbon black each having a functional group reactive with a carbodiimide group with a carbodiimide compound having one or more carbodiimide groups, said carbodiimide compound having, within the molecule thereof, at least one side chain selected from the group consisting of polyester side chains, polyether side chains and polyacrylic side chains, with a carbodiimide equivalent of 100 to 50,000.Type: GrantFiled: March 10, 2003Date of Patent: May 22, 2007Assignee: Sakata INK Corp.Inventors: Masanori Kano, Kazunori Itoh, Naoyuki Kitaoka, Takaaki Yodo, Hideo Shibata
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Patent number: 7030274Abstract: The present invention relates to an improved process for the production of carbodiimide modified organic isocyanate, preferably a polymethylene polyphenylisocyanate, and most preferably diphenylmethane diisocyanate. This process includes (1) neutralizing acidic impurities in an organic isocyanate, (2) partially carbodiimidizing isocyanate groups of the neutralized organic isocyanate, and (3) terminating the carbodiimidization reaction.Type: GrantFiled: June 17, 2004Date of Patent: April 18, 2006Assignee: Bayer MaterialScience LLCInventors: James William Rosthauser, James Thomas Garrett, Jeffrey S. Bolton
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Publication number: 20040059111Abstract: A novel fluorescent group-containing carbodiimide compound having at least one group selected from a carboxyl group, a sulfo group, a phosphono group and a phospho group which have substitution of an alkali metal, an alkaline earth metal or a basic group containing a nitrogen or phosphorus atom, which is prepared by using a novel fluorescent group-containing carbodiimide compound precursor having a halogen atom or a sulfonic acid group; and a method for detecting a nucleic acid by hybridization utilizing a nucleic acid labeled with a labeling substance, which utilizes the fluorescent group-containing carbodiimide compound as the labeling substance.Type: ApplicationFiled: September 2, 2003Publication date: March 25, 2004Inventors: Naoki Kimura, Namiko Shiohata, Yoko Yoshikawa
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Publication number: 20040049047Abstract: A novel fluorescent group-containing carbodiimide compound having at least one group selected from a carboxyl group, a sulfo group, a phosphono group and a phospho group which have substitution of an alkali metal, an alkaline earth metal or a basic group containing a nitrogen or phosphorus atom, which is prepared by using a novel fluorescent group-containing carbodiimide compound precursor having a halogen atom or a sulfonic acid group; and a method for detecting a nucleic acid by hybridization utilizing a nucleic acid labeled with a labeling substance, which utilizes the fluorescent group-containing carbodiimide compound as the labeling substance.Type: ApplicationFiled: September 2, 2003Publication date: March 11, 2004Inventors: Naoki Kimura, Namiko Shiohata, Yoko Yoshikawa
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Publication number: 20030073866Abstract: A novel carbodiimide compound represented by the general formula (1) having an ester linkage and containing a fluorescent group can be prepared for providing a novel carbodiimide compound and a process for producing such a compound, in which the fluorescent group of such a compound can be efficiently introduced into a nucleic acid including a naturally-occurring nucleic acid or into a protein in a simple manner, while retaining a sufficient solubility to water. In addition, a fluorescent group-containing compound and a carbodiimide compound which can be efficiently coupled together in a simple manner.Type: ApplicationFiled: May 21, 2002Publication date: April 17, 2003Inventor: Naoki Kimura
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Publication number: 20020128512Abstract: The present invention relates to biscarbodiimides, thiourea derivatives, urea derivatives, and cross-linked hyaluronan derivatives having at least one intramolecular disulfide bond, and methods of preparation thereof. The invention also includes thiolated hyaluronan derivatives and salts thereof having at least one pendant thiol group or a modified pendant thiol group, and methods of preparation thereof. An example of a modified pendant thiol group is a sulfhydryl group linked to a small molecule such as a bioactive agent, for example a drug or pharmaceutically active moiety. A hyaluronan derivative having a sulfhydryl group linked to a pharmaceutically active moiety is useful as a sustained or controlled release drug delivery vehicle. Compositions containing the hyaluronan derivatives of the invention can reversibly viscosify in vivo or in vitro, in response to mild changes in condition, and are thus useful in ophthalmic surgery and in tissue engineering.Type: ApplicationFiled: February 21, 2002Publication date: September 12, 2002Applicant: Anika Therapeutics, Inc.Inventors: Paul C. A. Bulpitt, Charles H. Sherwood, Khalid K. Sadozai
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Patent number: 6444737Abstract: The invention provides stabilizer systems for scavenging acid, minimizing hydrolysis, or both in polymer systems. The invention comprises a combination selected from the group consisting of: branched primary amino alcohol and carbodiimide; branched primary amino alcohol and dihydroxy metal compound; carbodiimide and dihydroxy metal compound; carbodiimide, branched primary amino alcohol, and magnesium oxide; branched primary amino alcohol and magnesium oxide; carbodiimide and magnesium oxide; and a combination of branched primary amino alcohol, carbodiimide, and dihydroxy metal compound.Type: GrantFiled: April 5, 2000Date of Patent: September 3, 2002Assignee: 3M Innovative Properties CompanyInventor: Terry J. Rayner
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Patent number: 6211293Abstract: A polyfunctional polycarbodiimide compound contains at least four molecular chains bonded independently to a backbone. Each of the molecular chains contains a carbodiimido (—N═C═N—) group. The polyfunctional carbodiimide compound can be produced by reacting (a) an isocyanate compound having at least one carbodiimido group and at least one isocyanate group with (b) a polyol, polyamine and/or aminoalcohol having at least four hydroxyl, primary amino and/or secondary amino groups in a molecule. Also disclosed are a resin composition containing the polyfunctional polycarbodiimide compound as a crosslinking agent; and a treatment method of an article, which makes use of the resin composition.Type: GrantFiled: May 21, 1999Date of Patent: April 3, 2001Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Michiei Nakamura, Hiroyuki Shimanaka, Yoshitaka Wakebe, Tatsuo Kawamura, Eiichi Sugawara, Ken Okura, Masayuki Takahashi, Nobuo Takezawa
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Patent number: 6211364Abstract: The present invention provides intermediate for the preparation of indane-like compounds which are useful for the modulation of a muscarinic receptor.Type: GrantFiled: June 10, 1999Date of Patent: April 3, 2001Assignee: Eli Lilly and CompanyInventors: Bret E Huff, Michael A Staszak, John S Ward
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Patent number: 6184410Abstract: Carbodiimides based on 1,3-bis(1-methyl-1-isocyanatoethyl)benzene contain from 12 to 40% by weight of ethylene oxide units [—CH2—CH2—O—], based on the weight of the carbodiimides.Type: GrantFiled: April 22, 1999Date of Patent: February 6, 2001Assignee: BASF AktiengesellschaftInventors: Heinz Bollmann, Karl Häberle, Nicolas Kokel, Raina Thärigen
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Patent number: 6143409Abstract: Described is an adhesive containing a polycarbodiimide resin having repeating units represented by the following formula:.paren open-st.R--N.dbd.C.dbd.N.paren close-st..sub.nwherein R is a divalent hydrocarbon group and n is an integer of 5 to 250, and also described is a flexible printed circuit board and a coverlay film fabricated using the above-described polycarbodiimide resin-containing adhesive.Type: GrantFiled: November 25, 1998Date of Patent: November 7, 2000Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yasuyoshi Komoto, Akira Hayashida, Michio Aizawa, Hitoshi Arai, Ken Yahata
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Patent number: 6126860Abstract: A hydrolysis stabilizer for an ester group-containing resin, which comprises as a main component a carbodiimide having at least two carbodiimide groups in the molecule and resulting from 4,4'-dicyclohexylmethane diisocyanate, isophorone diisocyanate or a mixture of 4,4'-dicyclohexylmethane diisocyanate and isophorone diisocyanate, or from a mixture of tetramethylxylylene diisocyanate with 4,4'-dicyclohexylmethane diisocyanate, isophorone diisocyanate or a mixture of 4,4'-dicyclohexylmethane diisocyanate and isophorone diisocyanate; and a process for the hydrolysis stabilization of an ester group-containing resin, which comprises mixing a polyester type resin with the above hydrolysis stabilizer.Type: GrantFiled: December 23, 1998Date of Patent: October 3, 2000Assignee: Nisshinbo Industries, Inc.Inventors: Yasuo Imashiro, Ikuo Takahashi, Naofumi Horie, Takeshi Yamane
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Patent number: 6040314Abstract: There are provided novel compounds of formula I ##STR1## wherein D represents alkyl C1 to 6;T represents a C.sub.3-5 saturated or unsaturated alkylene chain substituted by --(CH.sub.2).sub.m -- NXY; --O--(CH.sub.2).sub.z --NH-- substituted by --(CH.sub.2).sub.m --NXY; or --U--(CH.sub.2).sub.a --N(X)--(CH.sub.2).sub.b --; and a, b, m, X and Y are as defined in the specification together with processes for their preparation, compositions containing them and their use in therapy. Compounds of formula I are expected to be useful inter alia in the treatment of neurodegenerative disorders.Type: GrantFiled: May 7, 1998Date of Patent: March 21, 2000Assignee: Astra ABInventor: James MacDonald
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Patent number: 6008311Abstract: A polycarbodiimide having excellent heat resistance and humidity resistance, which comprises a structural unit represented by the following formula (A) ##STR1## wherein R represents a divalent organic group represented by any one of the following formulae (I) and (II), n is an integer of 2 to 400 ##STR2## wherein X.sub.1 to X.sub.4 independently represent a hydrogen or an alkyl group having 1 to 3 carbon atoms.Type: GrantFiled: February 5, 1998Date of Patent: December 28, 1999Assignee: Nitto Denko CorporationInventors: Michie Sakamoto, Amane Mochizuki, Masahiro Yoshioka, Takahiro Fukuoka
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Patent number: 5929188Abstract: A polyfunctional polycarbodiimide compound contains at least four molecular chains bonded independently to a backbone. Each of the molecular chains contains a carbodiimido (--N.dbd.C.dbd.N--) group. The polyfunctional carbodiimide compound can be produced by reacting (a) an isocyanate compound having at least one carbodiimido group and at least one isocyanate group with (b) a polyol, polyamine and/or aminoalcohol having at least four hydroxyl, primary amino and/or secondary amino groups in a molecule. Also disclosed are a resin composition containing the polyfunctional polycarbodiimide compound as a crosslinking agent; and a treatment method of an article, which makes use of the resin composition.Type: GrantFiled: April 24, 1997Date of Patent: July 27, 1999Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd.Inventors: Michiei Nakamura, Hiroyuki Shimanaka, Yoshitaka Wakebe, Tatsuo Kawamura, Eiichi Sugawara, Ken Okura, Masayuki Takahashi, Nobuo Takezawa
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Patent number: 5912290Abstract: The present invention provides:a hydrolysis stabilizer for ester group-containing resin, comprising, as the main component, a carbodiimide which is derived from tetramethylxylylene diisocyanate, and which has remaining isocyanate groups in an amount of 3% by weight or less or has the terminal isocyanate groups blocked with a monoisocyanate(s); anda method for hydrolysis stabilization of ester group-containing resin, which comprises mixing an ester group-containing resin with a carbodiimide which is derived from tetramethylxylylene diisocyanate represented by the above formula and which has remaining isocyanate groups in an amount of 3% by weight or less or has the terminal isocyanate groups blocked with a monoisocyanate(s).Type: GrantFiled: January 27, 1997Date of Patent: June 15, 1999Assignee: Nisshinbo Industries, Inc.Inventors: Yasuo Imashiro, Ikuo Takahashi, Naofumi Horie, Takeshi Yamane
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Patent number: 5889096Abstract: A hydrolysis stabilizer for an ester group-containing resin, which comprises as a main component a carbodiimide having at least two carbodiimide groups in the molecule and resulting from 4,4'-dicyclohexylmethane diisocyanate, isophorone diisocyanate or a mixture of 4,4'-dicyclohexylmethane diisocyanate and isophorone diisocyanate, or from a mixture of tetramethylxylylene diisocyanate with 4,4'-dicyclohexylmethane diisocyanate, isophorone diisocyanate or a mixture of 4,4'-dicyclohexylmethane diisocyanate and isophorone diisocyanate; and a process for the hydrolysis stabilization of an ester group-containing resin, which comprises mixing a polyester type resin with the above hydrolysis stabilizer.Type: GrantFiled: April 9, 1997Date of Patent: March 30, 1999Assignee: Nisshinbo Industries, inc.Inventors: Yasuo Imashiro, Ikuo Takahashi, Naofumi Horie, Takeshi Yamane
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Patent number: 5856479Abstract: Using the fluorescent group-containing carbodiimide compound represented-by the following formula (I) as the label and the like in the nucleic acid detection method, immunoassay, or chemiluminescence assay, labeling can be made efficiently for a short time, a nucleic acid derived from nature can be labelled, and highly sensitive assay is enabled.B--Y.sup.3 --N.dbd.C.dbd.N--Y.sup.2 --W--Y.sup.1 --?A!.sub.n --F(I)wherein F represents a fluorescent group;A represents a moiety selected from the group consisting of --CH.sub.2 --, --NHCO--, --CONH--, --O--, --S--, --NR-- wherein R is an alkyl group, --COO--, --OCO--, --NHSO.sub.2 --, and --SO.sub.2 NH--;n is 0 or 1;W represents a direct bond or a quaternary ammonium group;Y.sup.1, Y.sup.2 and Y.sup.3 each represents an alkylene group which may have a functional group in its main chain; andB represents H or a monovalent organic group which may be the same as or different from that represented by --W--Y.sup.1 --?A!.sub.n --F.Type: GrantFiled: May 16, 1997Date of Patent: January 5, 1999Assignee: Nisshinbo Industries, Inc.Inventors: Osamu Suzuki, Gen Masuda, Namiko Shiohata, Kazuko Matsumoto
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Patent number: 5786364Abstract: There are provided novel compounds of formula I ##STR1## wherein D represents alkyl C1 to 6;T represents a C.sub.3-5 saturated or unsaturated alkylene chain substituted by --(CH.sub.2).sub.m --NXY; --O--(CH.sub.2).sub.2 --NH-- substituted by --(CH.sub.2).sub.m --NXY; or --U--(CH.sub.2).sub.a --N(X)--(CH.sub.2).sub.b --;and a, b, m, X and Y are as defined in the specification together with processes for their preparation, compositions containing them and their use in therapy. Compounds of formula I are expected to be useful inter alia in the treatment of neurodegenerative disorders.Type: GrantFiled: March 8, 1996Date of Patent: July 28, 1998Assignee: Astra AktiebolagInventor: James MacDonald