Ring Phosphorus Containing Patents (Class 568/12)
  • Patent number: 11787904
    Abstract: A phosphinated (2,6-dimethylphenyl ether) oligomer, preparation method thereof and cured product. The phosphinated (2,6-dimethylphenyl ether) oligomer includes a structure represented by Formula (1): wherein X is a single bond, —CH2—, —O—, —C(CH3)2— or R?0, R0, R1, R2 and R3 are independently hydrogen, C1-C6 alkyl or phenyl; n and m are independently an integer from 0 to 300; p and q are independently an integer from 1 to 4; Y is hydrogen, U and V are independently an aliphatic structure.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: October 17, 2023
    Assignee: CPC CORPORATION, TAIWAN
    Inventors: Sheng-De Li, Ching-Hsuan Lin, Cheng-Liang Liu, Jun-Cheng Ye, You-Lin Shih, Yu An Lin, Wei-Yen Chen, Way-Chih Hsu, Jui-Fu Kao, Ming-Yu Huang, Jann-Chen Lin, Yih-Ping Wang
  • Patent number: 11111260
    Abstract: A method for forming 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane includes obtaining a solution comprising an ethereal solvent and an aluminum hydride, adding dichloro(2,4-dimethoxyphenyl)phosphine to the solution to produce 2,4-dimethoxyphenylphosphine, and reacting the 2,4-dimethoxyphenylphosphine with an acidic mixture comprising diones to produce 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane. The solution has a temperature from IN greater than ?20 C. to 50 C. throughout the method. Another method for forming 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-tri-oxa-6-phosphaadamantane includes obtaining dichloro(2,4-dimethoxyphenyl)phosphine, forming 2,4-dimethoxyphenylphosphine by adding the dichloro(2,4-dimethoxyphenyl)phosphine to a solution comprising at least one solvent and an aluminum hydride, reacting the 2,4-dimethoxyphenylphosphine with a mixture to produce 1,3,5,7-tetraalkyl-6-(2,4-dimethoxyphenyl)-2,4,8-trioxa-6-phosphaadamantane.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: September 7, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Jessica L. Klinkenberg, John R. Briggs, Andrew M. Camelio, Robert David Grigg, Siyu Tu
  • Patent number: 10941168
    Abstract: The present invention relates to a compound comprising at least one phosphepine ring and having the phosphorus atom of the phosphepine ring substituted with at least one monovalent substituent R, a semiconducting material comprising the compound, and electronic device comprising the semiconducting material.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: March 9, 2021
    Assignee: Novaled GmbH
    Inventor: Julien Frey
  • Patent number: 9266913
    Abstract: The disclosure is directed to: (a) phosphacycle ligands; (b) methods of using such phosphacycle ligands in bond forming reactions; and (c) methods of preparing phosphacycle ligands.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: February 23, 2016
    Assignee: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Patent number: 9139765
    Abstract: The present invention relates to electronic devices, in particular organic electroluminescent devices, which comprise compounds of the formula (1) or (2), and to the corresponding compounds and to the use thereof in organic electroluminescent devices.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: September 22, 2015
    Assignee: Merck Patent GmbH
    Inventors: Philipp Stoessel, Esther Breuning, Dominik Joosten
  • Patent number: 9012546
    Abstract: This invention relates to a process for producing compounds derived from 9,10-Dihydro-9-Oxa-10-Phosphaphenantrene-10-oxide (DOPO). In particular, the invention relates to producing DOPO-derived compounds by reacting DOPO with diol compounds in the presence of a catalyst. This invention also relates to DOPO derived composition containing a high melting point diastereomer. The DOPO derived compounds may be useful as flame-retardants.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: April 21, 2015
    Assignee: Albemarle Corporation
    Inventors: Qiang Yao, Junzuo Wang, Arthur G. Mack
  • Patent number: 9000220
    Abstract: The invention relates to the synthesis of tetraphenol-substituted structures, in particular meta-substituted xylenes. Said tetraphenol-type structures are reacted to obtain organic phosphorus compounds, in particular organophosphites. The invention further relates to the production of catalytically active compositions which contain transition metals in addition to the aforementioned organic phosphorus compounds. According to another subject matter of the invention, said catalytically active compositions are used in chemical reactions with small molecules, e.g. HCN, CO, hydrogen, and amines.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: April 7, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Andrea Christiansen, Robert Franke, Dirk Fridag, Dieter Hess, Burkard Kreidler, Dieter Vogt, Laura Bini, Michele Janssen, Bart Hamers
  • Patent number: 8975443
    Abstract: The disclosure is directed to: (a) phosphacycle ligands; (b) catalyst compositions comprising phosphacycle ligands; and (c) methods of using such phosphacycle ligands and catalyst compositions in bond forming reactions.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: March 10, 2015
    Assignee: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Publication number: 20140371446
    Abstract: The disclosure is directed to: (a) phosphacycle ligands; (b) methods of using such phosphacycle ligands in bond forming reactions; and (c) methods of preparing phosphacycle ligands.
    Type: Application
    Filed: August 25, 2014
    Publication date: December 18, 2014
    Applicant: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Publication number: 20140371480
    Abstract: A Cu(I)-catalyzed 1,3-halogen migration reaction effectively recycles an activating group by transferring a halogen from an sp2 to a benzylic carbon with good enantioselectivity and concomitant borylation of the Ar-halo bond. The resulting enantio-enriched benzyl halide can be reacted in the same vessel under a variety of conditions to form an additional carbon-heteroatom or carbon-carbon bond while maintaining high ee. The reaction can be used to efficiently prepare novel compounds and intermediates for the preparation of therapeutics and ligands for catalysis.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 18, 2014
    Inventors: Jennifer Marie Schomaker, Robert David Grigg, Ryan Jon Van Hoveln
  • Patent number: 8912346
    Abstract: A phosphine ligand suitable for use in telomerizing butadiene comprises two phenyl groups and a xanthene moiety.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: December 16, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Petrus Van Leeuwen, Mathieu Tschan, Eduardo Jose Garcia-Suarez, Zoraida Freixa, Henk Hagen
  • Patent number: 8841487
    Abstract: The disclosure is directed to: (a) phosphacycle ligands; (b) methods of using such phosphacycle ligands in bond forming reactions; and (c) methods of preparing phosphacycle ligands.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 23, 2014
    Assignee: AbbVie Inc.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Publication number: 20140275628
    Abstract: A method of attaching a phosphorous dendrimer onto magnetic microparticles by taking magnetic microparticles in a water-based solution, then performing a solvent exchange, then suspending the microparticles in a phosphorous dendrimer solution and shaking, then washing the microparticles with an organic solvent, and then washing the microparticles with a transition solvent. The solvent exchange is done by washing the microparticles with a first concentration of a transition solvent, then washing the microparticles with a second concentration of the transition solvent where the second concentration is greater than the first concentration, then washing the microparticles with an organic solvent, then washing the microparticles with the transition solvent, then washing the microparticles with the organic solvent, and then suspending the microparticles in the transition solvent. Also disclosed is the related phosphorous dendrimer made by this method.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventors: Marie J. Archer, Baochuan Lin
  • Publication number: 20140249253
    Abstract: A process for making a phosphorus-containing compound is disclosed. The process comprises contacting a compound of formula (A) wherein RA and RB are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups or can be combined to form cyclic structures; and RC is methyl, ethyl, isopropyl, n-butyl, i-butyl, t-butyl, phenyl or benzyl; and a compound of formula (B) wherein R1-R4 are selected from optionally substituted aryl, aryloxy, alkyl and alkoxy groups. The phosphorus-containing compound can then be used as a flame retardants for polymers, especially for epoxy, polyurethane, thermosetting resins and thermoplastic polymers. Such flame retardant-containing polymers can be used to make protective coating formulations and ignition-resistant fabricated articles, such as electrical laminates, polyurethane foams, and various molded and/or foamed thermoplastic products.
    Type: Application
    Filed: May 1, 2012
    Publication date: September 4, 2014
    Applicant: Dow Global Technologies LLC
    Inventors: Anteneh Z. Worku, Michael J. Mullins
  • Patent number: 8822723
    Abstract: A series of curing agents are provided. The curing agents are multi-functional and phosphorus-containing. The curing agents have excellent processability to be used as an epoxy resin curing agent. The curing agents can be cured to obtain a phosphorus-containing epoxy thermoset with flame retardancy characteristic. The epoxy thermosets are very fit for circuit board substrate having high glass transition temperature; semiconductor packaging material; and related materials.
    Type: Grant
    Filed: May 7, 2011
    Date of Patent: September 2, 2014
    Assignee: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense
    Inventors: Wen-Chiung Su, Ching-Hsuan Lin, Hung-Tse Lin
  • Patent number: 8816112
    Abstract: Disclosed are methods for making chiral phosphorus ligands including chiral phosphines, chiral phosphine oxides, phosphonamides, and aminophosphines. The chiral phosphorus ligands prepared by the methods of the invention are useful as components of chiral catalysts, e.g., transition metal complexes.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: August 26, 2014
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Zhengxu Han, Chris Hugh Senanayake
  • Publication number: 20140225040
    Abstract: The present invention relates to compounds for use in electronic devices, preferably organic electroluminescent devices. The invention furthermore relates to processes for the preparation of these compounds and to electronic devices comprising these compounds, preferably in a function as matrix materials and/or as electron-transport materials.
    Type: Application
    Filed: July 3, 2012
    Publication date: August 14, 2014
    Applicant: Merck Patent GmbH Patents & Scientific Information
    Inventors: Amir Hossain Parham, Christof Pflumm, Anja Jatsch
  • Publication number: 20140206904
    Abstract: The invention relates to a method for producing 6-chlorodibenzo[d,f] [1,3,2]-dioxaphosphepin (formula 1), comprising the following steps: a) addition of 2,2?-dihydroxybiphenyl, which is suspended in an inert solvant. into a reactor to an excess of phosphorous trichloride under inert gas and stirring; b) discharge and neutralization of the resulting gases from the reaction mixture; c) separation of the excess phosphorous trichloride and the solvant; d) obtention of 6-chlorodibenzo[d,f] [1,3,2]-dioxaphosphepin.
    Type: Application
    Filed: March 19, 2014
    Publication date: July 24, 2014
    Applicant: EVONIK OXENO GMBH
    Inventors: DIRK FRIDAG, ROBERT FRANKE, BERNHARD SCHEMMER, BURKARD KREIDLER, BJOERN WECHSLER
  • Patent number: 8785696
    Abstract: The present invention provides a phosphorus compound of formula (I). The phosphorus compound is prepared by reacting a compound of formula (II) with alkylene carbonate. As compared with the conventional phosphorus compounds as flame-resistant additives, the phosphorus compound of the present invention has not only a high pyrolysis temperature but also excellent solubility in most of the organic solvents with high or low polarity, and is therefore a suitable flame-resistant additive for use in thermosetting or thermoplastic resins.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: July 22, 2014
    Assignee: ChangChun Plastics Co., Ltd.
    Inventors: I-Cheng Hsu, Ping-Chieh Wang, An-Pang Tu, Kuen-Yuan Hwang
  • Patent number: 8772549
    Abstract: Disclosed is a method for making a diphosphite of Structure I,
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: July 8, 2014
    Assignee: INVISTA North America S.à r.l.
    Inventors: Joachim C. Ritter, Thomas E. Vos
  • Publication number: 20140178748
    Abstract: Disclosed is an electrolyte additive represented by the following Chemical Formula 1, and an electrolyte for a rechargeable lithium battery including the electrolyte additive, and a rechargeable lithium battery including the electrolyte. In Chemical Formula 1, R1 to R4 are the same as defined in the detailed description.
    Type: Application
    Filed: July 17, 2013
    Publication date: June 26, 2014
    Inventors: Denis CHERNYSHOV, Woo-Cheol SHIN, Pavel Alexandrovich SHATUNOV, Alexey TERESHCHENKO, Vladimir EGOROV, Makhmut KHASANOV, Myung-Hwan JEONG
  • Patent number: 8729304
    Abstract: The present invention relates to a 1,4,2-diazaphospholidine of the formula (1) wherein R1, R2 represent, independently of one another, saturated or mono- or polyunsaturated C1-C20-alkyl, -alkenyl, -alkynyl or C5-C40-aryl groups optionally substituted or interrupted by at least one heteroatom selected from the group consisting of N, O, S, and halogen, and X represents identical or different substituents selected from the group consisting of O, S, and N—R2.
    Type: Grant
    Filed: September 24, 2009
    Date of Patent: May 20, 2014
    Assignee: Bayer MaterialScience AG
    Inventor: Frank Richter
  • Patent number: 8729287
    Abstract: The invention relates to a method for producing 6-chlorodibenzo[d,f][1,3,2]dioxaphosphepin (formula 1), comprising the following steps: a) addition of 2,2?-dihydroxybiphenyl, which is suspended in an inert solvant. into a reactor to an excess of phosphorous trichloride under inert gas and stirring; b) discharge and neutralization of the resulting gases from the reaction mixture; c) separation of the excess phosphorous trichloride and the solvant; d) obtention of 6-chlorodibenzo[d,f][1,3,2]dioxaphosphepin.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: May 20, 2014
    Assignee: Evonik Oxeno GmbH
    Inventors: Dirk Fridag, Robert Franke, Bernhard Schemmer, Burkard Kreidler, Bjoern Wechsler
  • Publication number: 20140018548
    Abstract: A chiral hydrogenated H8-BINOL bisphosphine compound is provided, with the structure shown as the following formula (I), wherein both R1 and R2 are halogen, H or C1-C10 aliphatic group; R3 is H or C1-C10 aliphatic group; R4 is halogen, amino, nitro, H, C1-C10 aliphatic group or C1-C10 aromatic group; and X is phenyl, substituted phenyl, cyclohexyl, substituted cyclohexyl, C6-C30 aromatic group, or C6-C30 heterocyclic aromatic group containing one or more heteroatoms selected from N, S, O. The present invention further provides a catalyst for an asymmetric catalytic hydrogenation reaction which contains the compound, wherein the catalyst can produce more than 90% of enantiomers and efficiency with the turnover number of greater than 100,000 in the asymmetric hydrogenation reaction of imines.
    Type: Application
    Filed: March 2, 2011
    Publication date: January 16, 2014
    Applicants: DALIAN HETEROGENEOUS CATALYST CO., LTD., YOUTH CHEMICAL CO., LTD., JIANGSU YANGNONG CHEMICAL CO., LTD.
    Inventor: Jin Li
  • Patent number: 8618030
    Abstract: The present disclosure relates to a non-acidic, sulfur-containing, phosphorus-containing compound of the formula I where R1, R2, R3, R4, R5, R6, and R7 are as defined herein. Such a compound may exhibit improved antiwear performance and thermal stability in lubricating compositions.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: December 31, 2013
    Assignee: Afton Chemical Corporation
    Inventors: John Marshall Baker, Naresh Mathur, Roger M. Sheets, David J. Degonia
  • Patent number: 8609806
    Abstract: To provide phosphorus-containing epoxy resins and phosphorus-containing epoxy resin compositions having high levels of appearance, yield and economic efficiency and cured products thereof that are used for various applications. A phosphorus-containing phenol compound represented by Formula (3) obtained by reacting a compound represented by Formula (2) with a compound represented by Formula (1), wherein in the peak area (A) of the component represented by Formula (1) on a chromatogram measured under specific conditions by gel permeation chromatography, peak area (B) on the high-molecular-weight side of the component of Formula (1), and total area (C) of peak area (A) and peak area (B), the value obtained by dividing peak area (B) by total area (C) is 8 area % or less, and epoxy resin compositions and cured products comprising the phosphorus-containing phenol compound as an essential ingredient.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: December 17, 2013
    Assignee: Nippon Steel & Sumikin Chemical Co., Ltd.
    Inventors: Tetsuya Nakanishi, Hideyasu Asakage, Seigo Takuwa
  • Patent number: 8609901
    Abstract: Disclosed is a method for making a diphosphite of Structure I,
    Type: Grant
    Filed: April 15, 2010
    Date of Patent: December 17, 2013
    Assignee: Invista North America S.A R.L.
    Inventors: Joachim C. Ritter, Thomas E. Vos
  • Patent number: 8552212
    Abstract: The invention relates to a series of novel chiral phosphorus ligands of formulae (Ia) and (Ib): wherein R, 1-rR>4 and X are as defined herein. The invention also relates to chiral metal complexes prepared with these chiral phosphorus ligands. The chiral metal complexes are useful as catalysts for carrying out asymmetric hydro genation.
    Type: Grant
    Filed: November 1, 2010
    Date of Patent: October 8, 2013
    Assignee: Boehringer Ingelheim International GmbH
    Inventors: Bo Qu, Chris Hugh Senanayake, Wenjun Tang, Xudong Wei, Nathan K. Yee
  • Publication number: 20130217876
    Abstract: The disclosure is directed to: (a) phosphacycle ligands; (b) catalyst compositions comprising phosphacycle ligands; and (c) methods of using such phosphacycle ligands and catalyst compositions in bond forming reactions.
    Type: Application
    Filed: August 21, 2012
    Publication date: August 22, 2013
    Applicant: ABBVIE INC.
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan
  • Publication number: 20130203988
    Abstract: The invention relates to processes of making bortezomib of formula (1) enantiomers thereof and/or intermediates thereof, comprising at least one step of coupling a carboxylic acid with an amine, wherein the coupling step is performed in a presence of the compound of formula (8), wherein A is C1-C6 alkyl group, preferably wherein A is n-propyl group.
    Type: Application
    Filed: October 14, 2010
    Publication date: August 8, 2013
    Applicant: Synthon BV
    Inventors: Jakub Castulik, Miroslav Zabadal
  • Patent number: 8492593
    Abstract: Amido-fluorophosphite compounds and catalyst systems comprising at least one amido-fluorophosphite ligand compound in combination with a transition metal are described. Moreover, the use of amido-fluorophosphite containing catalysts for transition metal catalyzed processes, especially to the hydroformylation of various olefins to produce aldehydes are also described.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: July 23, 2013
    Assignee: Eastman Chemical Company
    Inventor: Thomas Allen Puckette
  • Patent number: 8471066
    Abstract: A process for preparation of a phosphoromonochloridite in high yield, by contacting phosphorus trichloride (PCl3) with an aromatic diol, such as 2,2?-biphenol, in a slurry, which contains a portion of the aromatic diol in solid form and contains a solution phase containing the remaining portion of the aromatic diol and an organic solvent, under reaction conditions sufficient to produce the phosphoromonochloridite. The slurry comprises less than 5 mole percent of a nitrogen base, calculated on total moles of the aromatic diol, and the organic solvent is selected for its low hydrogen chloride solubility.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: June 25, 2013
    Inventor: Glenn A. Miller
  • Patent number: 8466096
    Abstract: The present disclosure relates to a non-acidic, sulfur-containing, phosphorus-containing compound of the formula I where R1, R2, R3, R4, R5, R6, and R7 are as defined herein. Such a compound may exhibit improved antiwear performance and thermal stability in lubricating compositions.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: June 18, 2013
    Assignee: Afton Chemical Corporation
    Inventors: John Marshall Baker, Naresh Mathur, Roger M. Sheets, David J. DeGonia
  • Publication number: 20130137902
    Abstract: Phosphine ligands of the formula Ia, IB and mixtures thereof.
    Type: Application
    Filed: March 31, 2011
    Publication date: May 30, 2013
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Nizar Haddad, Bo Qu, Sonia Rodriguez, Chris Senanayake, Wenjun Tang, Xudong Wei, Nathan K. Yee
  • Publication number: 20130046094
    Abstract: The present invention relates to electronic devices, in particular organic electroluminescent devices, which comprise compounds of the formula (1) or (2), and to the corresponding compounds and to the use thereof in organic electroluminescent devices.
    Type: Application
    Filed: March 24, 2011
    Publication date: February 21, 2013
    Applicant: MERCK PATENT GMBH
    Inventors: Philipp Stoessel, Esther Breuning, Dominik Joosten
  • Publication number: 20130034749
    Abstract: A cyclophosphazene compound of the formula (I), and lubricants and magnetic disks using the compound wherein n is 2, 3 or 4, m is an integer of 1 to 12, R is C1-4 fluoroalkyl and Rf is —CF2O(CF2CF2O)x(CF2O)yCF2— or —CF2CF2O(CF2CF2CF2O)zCF2CF2— in which x, y and z are each 0 or a positive real number to give a number average molecular weight of 500 to 4000 to a fluoropolyether of the formula HOCH2-Rf-CH2OH including said Rf, the fluoropolyether having a molecular weight distribution (PD) of 1.0 to 1.5.
    Type: Application
    Filed: April 20, 2011
    Publication date: February 7, 2013
    Inventors: Tsuyoshi Shimizu, Nagayoshi Kobayashi
  • Patent number: 8354474
    Abstract: The presently disclosed embodiments are directed generally to a composition that forms a cross-linked protective outer coating or layer able to withstand high temperatures and which maintains integrity in such conditions. The protective coating may be used in imaging apparatus members and components, for use in electrostatographic, including digital, apparatuses. Particular embodiments pertain to a fuser component having an outer coating comprised of a cross-linking composition that improves resistance to thermal degradation and extends the service life of the fuser component.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: January 15, 2013
    Assignee: Xerox Corporation
    Inventors: Brian Gilmartin, Liang-Bih Lin
  • Patent number: 8344173
    Abstract: A cyclotriphosphazene represented by Formula 1 prepared by introducing a dendritic tetrapeptide and a hydrophilic polyethylene glycol into a cyclotriphosphazene ring, a method of preparing the same, and a drug carrier including the cyclotriphosphazene of Formula 1. The compound according to the present invention may form a strong molecular hydrogel in a very low concentration of 2 w/w % or less. Furthermore, the hydrogel prepared using the compound of Formula 1 exhibits biodegradability, thermosensitivity at around body temperature, biocompatibility with protein drugs, and an easy way to prepare along with a sustained release property without any burst effect in the early stage of release. Therefore, the present cyclotriphosphazene molecular hydrogel may be efficiently used as a drug carrier for a sustained release of a drug, particularly, a protein drug.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: January 1, 2013
    Assignee: CnPharm Co., Ltd.
    Inventors: Youn Soo Sohn, Yong Joo Jun, Sung Mo Choi
  • Publication number: 20120277455
    Abstract: The invention relates to a series of novel chiral phosphorus ligands of formulae (Ia) and (Ib): wherein R, 1-rR>4 and X are as defined herein. The invention also relates to chiral metal complexes prepared with these chiral phosphorus ligands. The chiral metal complexes are useful as catalysts for carrying out asymmetric hydro genation.
    Type: Application
    Filed: November 1, 2010
    Publication date: November 1, 2012
    Applicant: BOEHRINGER INGELHEIM INTERNATIONAL GMBH
    Inventors: Bo Qu, Chris Hugh Senanayake, Wenjun Tang, Xudong Wei, Nathan K. Yee
  • Patent number: 8288003
    Abstract: Provided are a method for producing a phosphorus-containing phenolic compound in which reactivity is considerably excellent in the reaction between a phosphorus-containing compound and an aromatic nucleus of a phenol; in the case of using a polyhydric phenol or a phenolic resin as the phenol, a novel phosphorus-containing phenolic compound that serves as a curing agent for an epoxy resin and imparts excellent heat resistance to a cured product; a curable resin composition containing the novel phosphorus-containing phenolic compound; a cured product of the curable resin composition; a printed wiring board; and a semiconductor sealing material. An aromatic aldehyde (a1) having an alkoxy group as a substituent on an aromatic nucleus is allowed to react with an organic phosphorus compound (a2) intramolecularly having a P—H group or a P—OH group. The resultant reaction product is then allowed to react with a phenol (a3).
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: October 16, 2012
    Assignee: DIC Corporation
    Inventors: Koji Hayashi, Yoshiyuki Takahashi, Ichirou Ogura
  • Patent number: 8278490
    Abstract: The present invention pertains to a process for the preparation of pentaerythritol diphosphites via a one-pot, direct esterification of phosphorus trichloride with pentaerithritol, and either an alkylphenol or an arylalkylphenol which functions both as a reactant and as a solvent, with a phase transfer catalyst such as a quaternary ammonium salt.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: October 2, 2012
    Assignee: Dover Chemical Corporation
    Inventors: Donald Stevenson, Ping Lue, Jacob M. Lance
  • Patent number: 8278375
    Abstract: Mixtures of three types of linear, branched or cyclic phosphates are useful flame retardants, especially for thermoplastic resins or as functional additives in polymer matrices.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: October 2, 2012
    Assignee: Rhodia UK Limited
    Inventors: Vincent Schanen, Dwight Shamblee, Gleb Priimov, Julie Ann Salter
  • Publication number: 20120222557
    Abstract: Some embodiments described herein relate to ionic liquids comprising an anion of a heteraromatic compound such as optionally substituted pyrrolide, optionally substituted pyrazolide, optionally substituted indolide, optionally substituted phospholide, or optionally substituted imidazolide. Methods and devices for gas separation or gas absorption related to these ionic liquids are also described herein.
    Type: Application
    Filed: November 3, 2010
    Publication date: September 6, 2012
    Applicant: UNIVERSITY OF NOTRE DAME DU LAC
    Inventors: William F. Schneider, Joan F. Brennecke, Edward J. Maginn, Elaine Mindrup, Burcu Gurkan, Erica Price, Brett Goodrich
  • Publication number: 20120130126
    Abstract: A series of curing agents are provided. The curing agents are multi-functional and phosphorus-containing. The curing agents have excellent processability to be used as an epoxy resin curing agent. The curing agents can be cured to obtain a phosphorus-containing epoxy thermoset with flame retardancy characteristic. The epoxy thermosets are very fit for circuit board substrate having high glass transition temperature; semiconductor packaging material; and related materials.
    Type: Application
    Filed: May 7, 2011
    Publication date: May 24, 2012
    Applicant: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National Defense
    Inventors: Wen-Chiung Su, Ching-Hsuan Lin, Hung-Tse Lin
  • Patent number: 8168831
    Abstract: A non-aqueous electrolyte cell comprises a positive electrode, a negative electrode and a non-aqueous electrolyte containing a support salt. The non-aqueous electrolyte further comprises a phosphazene derivative. The phosphazene derivative having a specified structure functions as an electrode stabilizing agent or a non-combustion agent.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: May 1, 2012
    Assignee: Bridgestone Corporation
    Inventors: Masashi Otsuki, Shigeki Endo, Takao Ogino, Yasuo Horikawa
  • Publication number: 20120095170
    Abstract: This invention relates to a novel phosphorus-containing phenol novolac resin, use of the phosphorus-containing phenol novolac resin as a halogen-free flame retardant epoxy hardener, and an epoxy resin composition having high phosphorus content because it includes the phosphorus-containing phenol novolac resin, thereby exhibiting superior flame retardancy and heat resistance.
    Type: Application
    Filed: March 30, 2010
    Publication date: April 19, 2012
    Applicant: KOLON INDUSTRIES, INC.
    Inventors: Ji Woong Kong, Sang Min Lee, Ick Kyung Sung
  • Publication number: 20120095156
    Abstract: Provided are a method for producing a phosphorus-containing phenolic compound in which reactivity is considerably excellent in the reaction between a phosphorus-containing compound and an aromatic nucleus of a phenol; in the case of using a polyhydric phenol or a phenolic resin as the phenol, a novel phosphorus-containing phenolic compound that serves as a curing agent for an epoxy resin and imparts excellent heat resistance to a cured product; a curable resin composition containing the novel phosphorus-containing phenolic compound; a cured product of the curable resin composition; a printed wiring board; and a semiconductor sealing material. An aromatic aldehyde (a1) having an alkoxy group as a substituent on an aromatic nucleus is allowed to react with an organic phosphorus compound (a2) intramolecularly having a P—H group or a P—OH group. The resultant reaction product is then allowed to react with a phenol (a3).
    Type: Application
    Filed: August 5, 2009
    Publication date: April 19, 2012
    Applicant: DIC Corporation
    Inventors: Koji Hayashi, Yoshiyuki Takahashi, Ichirou Ogura
  • Publication number: 20120055705
    Abstract: This invention relates to 9,10-Dihydro-9-Oxa-10-Phosphaphenantrene-10-oxide derived additive flame-retardants, which are useful in epoxy resin compositions. The epoxy resin compositions may be used in making prepregs or laminates for printed wiring boards and composite materials.
    Type: Application
    Filed: May 19, 2010
    Publication date: March 8, 2012
    Applicant: Albemarle Corporation
    Inventors: Kimberly M. White, Yu Li Angell, Scott E. Angell, Arthur G. Mack
  • Publication number: 20120046475
    Abstract: A phosphine ligand suitable for use in telomerizing butadiene comprises two phenyl groups and a xanthene moiety.
    Type: Application
    Filed: May 14, 2009
    Publication date: February 23, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Petrus Van Leeuwen, Mathieu Tschan, Eduardo Jose Garcia-Suarez, Zoraida Freixa, Henk Hagen
  • Publication number: 20120022252
    Abstract: The disclosure is directed to: (a) phosphacycle ligands; (b) methods of using such phosphacycle ligands in bond forming reactions; and (c) methods of preparing phosphacycle ligands.
    Type: Application
    Filed: July 15, 2011
    Publication date: January 26, 2012
    Applicant: ABBOTT LABORATORIES
    Inventors: Shashank Shekhar, Thaddeus S. Franczyk, David M. Barnes, Travis B. Dunn, Anthony R. Haight, Vincent S. Chan