Plural Benzene Rings Bonded Directly To Cyano Groups Patents (Class 558/420)
  • Publication number: 20150090935
    Abstract: The invention relates to bimesogenic compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention. Furthermore the invention relates to bimesogenic compounds of formula I inducing a second nematic phase in nematic mixtures that do not show this additional phase without compounds of formula I.
    Type: Application
    Filed: May 7, 2013
    Publication date: April 2, 2015
    Applicant: Merck Patent GmbH
    Inventors: Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Benjamin Snow, Mariam Namutebi
  • Publication number: 20150001178
    Abstract: A monomer for a hardmask composition is represented by the following Chemical Formula 1,
    Type: Application
    Filed: April 22, 2014
    Publication date: January 1, 2015
    Inventors: Hyun-Ji SONG, Yun-Jun KIM, Go-Un KIM, Young-Min KIM, Hea-Jung KIM, Joon-Young MOON, Yo-Choul PARK, Yu-Shin PARK, You-Jung PARK, Seung-Wook SHIN, Yong-Woon YOON, Chung-Heon LEE, Yoo-Jeong CHOI, Seung-Hee HONG
  • Publication number: 20140374717
    Abstract: An amine-based compound is represented by Formula 1: An organic light-emitting diode includes a first electrode, a second electrode, and an organic layer between the first electrode and the second electrode. The organic layer includes an emission layer and the amine-based compound represented by Formula 1. The OLED including the amine-based compound represented by Formula 1 has good color purity, low driving voltage, high efficiency, high brightness, and/or a long lifetime.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 25, 2014
    Inventors: Mi-Kyung Kim, Chang-Woong Chu, Sam-Il Kho, Dong-Hyun Kim, Kwan-Hee Lee, Jong-In Hong, Seong-Jin Jeong
  • Publication number: 20140353617
    Abstract: A condensed compound is represented by Formula 1 below: An organic light-emitting diode includes a substrate, a first electrode on the substrate, a second electrode disposed opposite to the first electrode, and an organic layer interposed between the first electrode and the second electrode. The organic layer includes at least one layer including a compound of Formula 1.
    Type: Application
    Filed: November 22, 2013
    Publication date: December 4, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Soo-Yon KIM, Seok-Hwan HWANG, Young-Kook KIM, Jun-Ha PARK, Hye-Jin JUNG, Eun-Young LEE, Sang-Hyun HAN, Jin-O LIM
  • Patent number: 8901540
    Abstract: A compound for an organic thin film transistor having a structure represented by the following formula (1): wherein R1 and R2, and R3 and R4 are respectively combined with each other to form an aromatic hydrocarbon ring having 6 to 60 carbon atoms or an aromatic heterocyclic ring having 3 to 60 carbon atoms; the ring being fused to the ring to which the groups are bonded, whereby the structure of the formula (1) has 5 or more aromatic rings that are fused; and the fused rings formed by R1 and R2, and R3 and R4 each may have a substituent.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: December 2, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Masatoshi Saito, Yuki Nakano, Hiroaki Nakamura, Hirofumi Kondo
  • Patent number: 8872163
    Abstract: A compound for an organic thin film transistor having a structure represented by the following formula (1): wherein R1 and R2, and R3 and R4 are respectively combined with each other to form an aromatic hydrocarbon ring having 6 to 60 carbon atoms or an aromatic heterocyclic ring having 3 to 60 carbon atoms; the ring being fused to the ring to which the groups are bonded, whereby the structure of the formula (1) has 5 or more aromatic rings that are fused; and the fused rings formed by R1 and R2, and R3 and R4 each may have a substituent.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: October 28, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Masatoshi Saito, Yuki Nakano, Hiroaki Nakamura, Hirofumi Kondo
  • Publication number: 20140231715
    Abstract: The present invention relates to a compound of the formula (I), to the use of this compound in an electronic device, and to an electronic device comprising one or more compounds of the formula (I). The invention furthermore relates to the preparation of the compound of the formula (I) and to a formulation comprising one or more compounds of the formula (I).
    Type: Application
    Filed: March 23, 2012
    Publication date: August 21, 2014
    Applicant: Merck Patent GmbH Patents & Scientific Information
    Inventors: Philipp Stoessel, Arne Buesing, Frank Voges, Christof Pflumm, Amir Hossain Parham, Thomas Eberle, Teresa Mujica-Fernaud
  • Publication number: 20140232977
    Abstract: The invention relates to bimesogenic compounds of formula I R1-MG1-Sp-MG2-R2??I wherein R1, R2, MG1, MG2 and Sp have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention. Furthermore the invention relates to bimesogenic compounds of formula I inducing a second nematic phase in nematic mixtures that do not show this additional phase without compounds of formula I.
    Type: Application
    Filed: June 12, 2012
    Publication date: August 21, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Kevin Adlem, David Wilkes, Patricia Eileen Saxton, Benjamin Snow, Rachel Tuffin, Owain Llyr Parri, Geoffrey Luckhurst
  • Publication number: 20140117327
    Abstract: An organic compound represented by Formula 1 below and an organic light-emitting device including the organic compound; Wherein Ar1, Ar2, Ar3, Ar4, a, b, and c are defined as in the specification.
    Type: Application
    Filed: July 17, 2013
    Publication date: May 1, 2014
    Inventors: Jin-O Lim, Seok-Hwan Hwang, Young-Kook Kim, Hye-Jin Jung, Sang-Hyun Han, Soo-Yon Kim, Eun-Jae Jeong, Jun-Ha Park, Eun-Young Lee, Il-Soo Oh, Jong-Hyuk Lee
  • Publication number: 20130234118
    Abstract: Embodiments of the present invention include an amine-based compound represented by Formula 1, an organic light-emitting diode including the amine-based compound, and an organic light-emitting apparatus including the amine-based compound.
    Type: Application
    Filed: December 5, 2012
    Publication date: September 12, 2013
    Applicant: SAMSUNG DISPLAY CO. LTD.
    Inventors: O-Hyun Kwon, Dong-Woo Shin, Kyul Han, Seul-Ong Kim, Byoung-Ki Choi
  • Publication number: 20130193382
    Abstract: The present invention relates to compounds of the formula (I) and to the use thereof in electronic devices. The invention furthermore relates to electronic devices, preferably organic electroluminescent devices (OLEDs), comprising one or more com-pounds of the formula (I). The invention again furthermore relates to the preparation of compounds of the formula (I) and to formulations comprising one or more compounds of the formula (I).
    Type: Application
    Filed: September 6, 2011
    Publication date: August 1, 2013
    Applicant: MERCK PATENT GmbH
    Inventors: Arne Buesing, Thomas Eberle, Irina Martynova, Teresa Mujica-Fernaud
  • Patent number: 8431514
    Abstract: The present invention relates to bis-amide derivatives of formula (I), to processes and intermediates for preparing them, to methods of using them to control insect, acarine, nematode and mollusc pests, and to insecticidal, acaricidal, nematicidal and molluscicidal compositions comprising them.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: April 30, 2013
    Assignee: Syngenta Crop Protection LLC
    Inventors: Pierre Joseph Marcel Jung, Christopher Richard Ayles Godfrey, Ottmar Franz Hueter, Peter Maienfisch
  • Publication number: 20130033416
    Abstract: An organic compound contains indacenodiperylene as the basic skeleton.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 7, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Jun Kamatani, Naoki Yamada, Tetsuya Kosuge, Takayuki Horiuchi, Yosuke Nishide, Hirokazu Miyashita, Akihito Saitoh
  • Publication number: 20120326133
    Abstract: A compound represented by Formula 1 below and an organic light-emitting device including an organic layer containing the compound of Formula 1: wherein R1 to R4, X and Y, a and b, and m and n are defined as in the specification.
    Type: Application
    Filed: December 2, 2011
    Publication date: December 27, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Myeong-Suk Kim, Dong-Woo Shin, Sung-Soo Bae, Ji-Hye Shim, Dae-Yup Shin, Byoung-Ki Choi
  • Patent number: 8309602
    Abstract: The present invention relates to multi-substituted m-diarylanilines or pharmaceutically acceptable salts thereof, wherein X, R1-R7 are as defined in the claims, their preparation process, pharmaceutical compositions comprising them and their use for the manufacture of a medicament for anti-HIV.
    Type: Grant
    Filed: October 7, 2008
    Date of Patent: November 13, 2012
    Assignees: Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences P.L.A. China
    Inventors: Lan Xie, Bingjie Qin, Kuo-Hsiung Lee, Shibo Jiang, Hong Lu
  • Publication number: 20120283267
    Abstract: Methods of treating exposure to Giardia lamblia and/or giardiasis and methods of antagonizing Giardia lamblia attachment to the intestinal wall of a subject are described herein.
    Type: Application
    Filed: December 2, 2010
    Publication date: November 8, 2012
    Applicant: GEORGETOWN UNIVERSITY
    Inventors: Heidi G. Elmendorf, Colleen D. Walls, Christian Wolf
  • Patent number: 8299247
    Abstract: A material for an organic electroluminescence device including an indenofluorenedione derivative shown by the following formula (I): wherein X1 and X2, which may be the same or different, are any of specific divalent groups; R1 to R10, which may be the same or different, are a hydrogen atom, an alkyl group, an aryl group, a heterocycle, a halogen atom, a fluoroalkyl group, an alkoxy group, an aryloxy group or a cyano group; and R3 to R6 or R7 to R10 may be bonded to each other to form a ring.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: October 30, 2012
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventor: Hironobu Morishita
  • Publication number: 20120256172
    Abstract: An organic electroluminescence device sequentially includes an anode, an emitting layer, an electron-transporting region, and a cathode, the electron-transporting region including an electron-transporting material that includes a cyano group and an aromatic ring group.
    Type: Application
    Filed: August 5, 2011
    Publication date: October 11, 2012
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hirokatsu Ito, Hiroyuki Saito, Yumiko Mizuki, Masahiro Kawamura, Yuichiro Kawamura
  • Publication number: 20120168733
    Abstract: A pyrene derivative represented by the following formula (1), wherein Ar1, Ar2 and Ar3 are independently a substituted or unsubstituted aryl group, with specific derivatives being excluded.
    Type: Application
    Filed: December 20, 2010
    Publication date: July 5, 2012
    Applicant: Idemitsu Kosan Co., LTD.
    Inventors: Yumiko Mizuki, Masahiro Kawamura, Yuichiro Kawamura, Hiroyuki Saito
  • Publication number: 20120135249
    Abstract: Aromatic and aromatic/heteroaromatic molecular structures with controllable electron conducting properties are derived from the incorporation of electron active substituents in selective positions.
    Type: Application
    Filed: February 8, 2012
    Publication date: May 31, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: ROGER HARQUAIL FRENCH, ROSS GETTY, SIMONA PERCEC
  • Publication number: 20110297923
    Abstract: An aromatic amine derivative represented by the following formula (1): wherein at least one of R1 to R8 is a group other than a hydrogen atom, Ar1 to Ar4 are a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms.
    Type: Application
    Filed: December 15, 2010
    Publication date: December 8, 2011
    Inventors: Yumiko Mizuki, Masahiro Kawamura, Sayaka Mizutani
  • Publication number: 20110275814
    Abstract: A material for an organic electroluminescence device including an indenofluorenedione derivative shown by the following formula (I): wherein X1 and X2, which may be the same or different, are any of specific divalent groups; R1 to R10, which may be the same or different, are a hydrogen atom, an alkyl group, an aryl group, a heterocycle, a halogen atom, a fluoroalkyl group, an alkoxy group, an aryloxy group or a cyano group; and R3 to R6 or R7 to R10 may be bonded to each other to form a ring.
    Type: Application
    Filed: July 18, 2011
    Publication date: November 10, 2011
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventor: Hironobu MORISHITA
  • Publication number: 20110220884
    Abstract: A compound for an organic thin film transistor having a structure represented by the following formula (1): wherein R1 and R2, and R3 and R4 are respectively combined with each other to form an aromatic hydrocarbon ring having 6 to 60 carbon atoms or an aromatic heterocyclic ring having 3 to 60 carbon atoms; the ring being fused to the ring to which the groups are bonded, whereby the structure of the formula (1) has 5 or more aromatic rings that are fused; and the fused rings formed by R1 and R2, and R3 and R4 each may have a substituent.
    Type: Application
    Filed: August 20, 2009
    Publication date: September 15, 2011
    Inventors: Masatoshi Saito, Yuki Nakano, Hiroaki Nakamura, Hirofumi Kondo
  • Publication number: 20110156011
    Abstract: The present invention relates to a blue fluorescence compound which enables to achieve high brightness, a long lifetime and high efficiency; and an organic electroluminescence device thereof.
    Type: Application
    Filed: August 17, 2010
    Publication date: June 30, 2011
    Inventors: Jong-Kwan BIN, Soon-Wook Cha, Seung-Jae Lee, Jung-Keun Kim, Chun-Gun Park
  • Publication number: 20110130525
    Abstract: Compounds having the formula (I) wherein L is a linking group, at least one of R1 to R10 comprises the group C?N, at least one of R1 to R5 and at least one of R6 to R10 comprise the group NH2 for use as curing agents in an epoxy resin, together with a process for their synthesis and composites comprising the curing agents.
    Type: Application
    Filed: August 3, 2009
    Publication date: June 2, 2011
    Applicant: Hexcel Corporation Ltd
    Inventor: John Cawse
  • Publication number: 20100292324
    Abstract: The present invention relates to multi-substituted m-diarylanilines or pharmaceutically acceptable salts thereof, wherein X, R1-R7 are as defined in the claims, their preparation process, pharmaceutical compositions comprising them and their use for the manufacture of a medicament for anti-HIV.
    Type: Application
    Filed: October 7, 2008
    Publication date: November 18, 2010
    Inventors: Lan Xie, Bingjie Qin, Kou-Hsiung Lee, Shibo Jiang, Hong Lu
  • Publication number: 20100174042
    Abstract: Sulfonated polymers have excellent processability and methanol resistance.
    Type: Application
    Filed: April 24, 2007
    Publication date: July 8, 2010
    Applicant: JSR CORPORATION
    Inventors: Yoshitaka Yamakawa, Yousuke Konno, Teruhiko Umehara
  • Patent number: 7691492
    Abstract: A novel substituted fluorene compound is provided which is represented by the general formula [I]:
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: April 6, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naoki Yamada, Akihito Saitoh, Keiji Okinaka, Koichi Suzuki, Akihiro Senoo
  • Patent number: 7521576
    Abstract: 2,4?-MDI which contains very little 2,2?-MDI is prepared by distilling an isomeric starting mixture of diisocyanatodiphenylmethanes which includes 2,2?-diisocyanato-diphenylmethane, 2,4?-diisocyanatodiphenylmethane and 4,4?-diisocyanatodiphenyl-methane in at least one stage in a separating wall column. This distillation produces at least one mixture which contains 85 to 99 wt. % of 2,4?-diisocyanatodiphenylmethane, up to 15 wt. % of 4,4?-diisocyanatodiphenyl-methane and no more than 0.2 wt. % of 2,2?-diisocyanatodiphenylmethane.
    Type: Grant
    Filed: January 24, 2006
    Date of Patent: April 21, 2009
    Assignee: Bayer MaterialScience AG
    Inventors: Hans-Peter Schal, Ulrich Wolf
  • Patent number: 7318966
    Abstract: A light emitting device includes an emissive substance between an anode and cathode that emits light upon application of electrical energy. The emissive substance included in the device is at least one of the following types of compounds: (a) a compound having a plurality of 1,7-phenanthroline skeletal structures; (b) a benzoquinoline derivative; (c) a spiro compound; and (d) a tetraphenylmethane derivative.
    Type: Grant
    Filed: November 22, 2001
    Date of Patent: January 15, 2008
    Assignee: Toray Industries, Inc.
    Inventors: Tsuyoshi Tominaga, Daisuke Kitazawa, Aki Makiyama, Akira Kohama
  • Publication number: 20070257603
    Abstract: A novel fluorene compound is provided which has at least one fluorene group represented by the following general formula [III] or [IV]:
    Type: Application
    Filed: January 29, 2007
    Publication date: November 8, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Koichi Suzuki, Kazunori Ueno, Hiroshi Tanabe, Satoru Shiobara
  • Patent number: 7026498
    Abstract: One aspect of the present invention relates to novel ligands for transition metals. A second aspect of the present invention relates to the use of catalysts comprising these ligands in transition metal-catalyzed carbon-heteroatom and carbon-carbon bond-forming reactions. The subject methods provide improvements in many features of the transition metal-catalyzed reactions, including the range of suitable substrates, reaction conditions, and efficiency.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: April 11, 2006
    Assignee: Massachusetts Institute of Technology
    Inventors: Stephen L. Buchwald, David W. Old, John P. Wolfe, Michael Palucki, Ken Kamikawa
  • Publication number: 20040251452
    Abstract: The present invention relates to 1,3,5-tricyano-2,4,6-tris(vinyl)benzene derivatives and method for preparing the same. The 1,3,5-tricyano-2,4,6-tris(vinyl)benzene derivatives can be prepared by refluxing 1,3,5-tricyanomesitylene with N-formylamine dimethylacetal or substituted benzaldehyde, or by the Wittig reaction of 1,3,5-tricyano-2,4,6-tris[(diethoxyphosphoryl)methyl]benzene with substituted benzaldehyde. The 1,3,5-tricyano-2,4,6-tris(vinyl)benzene derivatives exhibit large first hyperpolarizability in solution and significant second harmonic generation (SHG) in the powder state, and are useful as optical devices such as electro-optic modulators, optical switch, or the like for treating optical signal in optical communication industry.
    Type: Application
    Filed: January 26, 2004
    Publication date: December 16, 2004
    Inventors: Bong-Rae Cho, Seung-Joon Jeon, Min-Haeng Cho
  • Publication number: 20040236139
    Abstract: A mixture of isomeric diisocyanatodiphenylmethanes composed of at least 2,2′-diisocyanato-diphenylmethane, 2,4′-diisocyanatodiphenylmethane and 4,4′-diisocyanatodiphenyl-methane is distilled in at least one stage and a divided-wall column is used in at least one distillation stage.
    Type: Application
    Filed: May 4, 2004
    Publication date: November 25, 2004
    Inventors: Hans-Peter Schal, Ulrich Wolf, Bernd Thelen
  • Patent number: 6790975
    Abstract: This invention is an aminostyrylanthracene compound represented by, for example, the following general formula [I]. This compound is produced by condensation from a corresponding aminobenzaldehyde and a phosphonic ester or phosphonium salt. [where, in the general formula [I] above, R2 represents an unsubstituted aryl group, R1 represents an aryl group which may have a variety of substituents, and R3 to R5 each represent a hydrogen atom, a cyano group, or a hydrocarbon group.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: September 14, 2004
    Assignee: Sony Corporation
    Inventors: Mari Ichimura, Tadashi Ishibashi, Shinichiro Tamura
  • Patent number: 6630607
    Abstract: Aromatic methylidene compounds of the following general formula wherein R11 and R21 independently in each occurrence represent an unsubstituted or substituted alkyl or alkoxy group, a halogen, a cyano group or a nitro group, n11 and n21 are, respectively, an integer, R31 and R41 independently represent hydrogen, an unsubstituted or substituted alkyl group, an unsubstituted or substituted cycloalkyl group, an unsubstituted or substituted aromatic group, or an unsubstituted or substituted aromatic heterocyclic group and may join to complete a condensed ring, along with other types of aromatic methylidene compounds wherein the moieties attached to the naphthalene ring are attached to different positions of the ring. The preparation of the methylidene compounds is also described along with intermediate compounds and their preparation.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: October 7, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Mitsuru Hashimoto
  • Publication number: 20030168970
    Abstract: The light emitting device of the present invention relates to a light emitting device which is characterized in that it is a device with an emissive substance present between an anode and cathode, and which emits light by means of electrical energy, and said device has a least one type of compound denoted by (a) to (d) below.
    Type: Application
    Filed: September 11, 2002
    Publication date: September 11, 2003
    Inventors: Tsuyoshi Tominaga, Daisuke Kitazawa, Aki Makiyama, Akira Kohama
  • Publication number: 20030018203
    Abstract: Novel calcilytic compounds and methods of using them are provided.
    Type: Application
    Filed: July 17, 2002
    Publication date: January 23, 2003
    Inventors: Maria Amparo Largo, James Francis Callahan, Pradip Kumar Bhatnagar, Eric G. Del Mar, William M. Bryan, Joelle L. Burgess
  • Patent number: 6379590
    Abstract: A new method for producing unsymmetrically substituted fluorenyl compounds, one step of which is the preparation of 2,7-disubstituted fluoren-9-one derivatives via the nucleophilic substitution of a compound of the formula D wherein A′ is selected from the group consisting of —Br, —Cl, —F, —NO2, and —CN; A is selected from the group consisting of —NO2, —CN, —CO2R, —C(O)R, —SO2R, —SO2RF, —C(CN)═C(CN)2 and —CH═C(CN)2; RF is —CpF2p+1, p=from about 0 to about 10; R is an straight, branched or cyclic aliphatic alkyl group having about 1 to 10 carbon atoms, or an aromatic group such as phenyl or naphthyl; and is a carbonyl or a protected carbonyl such as a ketal or thio-ketal such as wherein R′ is —CrH2r+1; R″ is —(CH2)r—; and r is independently 2 or 3, with a nucleophilic reagent in the presence of an aprotic solvent
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: April 30, 2002
    Assignee: AlliedSignal Inc.
    Inventors: Chengjiu Wu, Jianhui Shan
  • Publication number: 20010044552
    Abstract: A liquid crystalline sulfur compound exhibiting high anisotropic factor of dipolemoment is provided. A terphenyl skeleton sulfur compound expressed by the general formula (I) is provided. A compound is preferred wherein, in the general formula (I), m is 1, n is 5 to 18, and R3 is an alkyl group wherein the number of carbon atoms is n or fewer than n. A method of synthesisng the terphenyl skeleton sulfur compound wherein, after implementing the synthesizing processes for a methoxy terphenyl derivative, a hydroxy terphenyl derivative, and terphenyl alkyloxy bromide derivative, that bromide derivative and thiourea are caused to react, etc. A self-assembled monolayer made using the terphenyl skeleton sulfur compound noted above is also provided.
    Type: Application
    Filed: February 23, 2001
    Publication date: November 22, 2001
    Inventors: Hitoshi Fukushima, Takashi Tamaki
  • Patent number: 6297298
    Abstract: A polymerizable composition suitable for storage prior to polymerization is made by mixing a phthalonitrile monomer and a curing agent under non-reactive conditions below the melting temperatures of the phthalonitrile monomer and the curing agent and in the absence of a solvent to create a homogeneous, unreacted mixture.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: October 2, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M. Keller, Satya B. Sastri
  • Patent number: 6169116
    Abstract: Compounds of formula I wherein R1, R2, R3, R4 and R5 are as defined in the description, are useful as pharmaceuticals.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: January 2, 2001
    Assignee: Novartis AG
    Inventor: Robert Swoboda
  • Patent number: 6048986
    Abstract: A method for preparing aromatic compounds including 1,4-difluoropyromellitic dianhydride represented by formula (12): ##STR1## and 1,4-difluoropyromellitic acid represented by formula (15): ##STR2## by dehydrating or hydrolyzing and dehydrating precursors.
    Type: Grant
    Filed: June 17, 1998
    Date of Patent: April 11, 2000
    Assignee: Nippon Telegraph and Telephone Corp.
    Inventors: Shinji Ando, Toru Matsuura, Shigekuni Sasaki, Fumio Yamamoto
  • Patent number: 5976202
    Abstract: Reaction products of polyolefins having predominantly a terminal double bond and a number average molecular weight of from 250 to 10,000, which possess an aliphatic hydrocarbon skeleton which is straight-chain or carries C.sub.1 -C.sub.4 -alkyl side chains, with from 1 to 10 mol, per equivalent of double bond, of one or more vinyl esters I ##STR1## are obtainable by reacting the stated polyolefins with the vinyl esters I in the presence of a free radical initiator at from 80 to 200.degree. C., it being possible for these reaction products subsequently to have been hydrolyzed to the corresponding alcohols or converted into the corresponding amines by reductive amination with amines II ##STR2## .
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: November 2, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans Peter Rath, Helmut Mach, Harald Schwahn, Hans-Joachim Muller, Wolfgang Reif, Thomas Ruhl
  • Patent number: 5849934
    Abstract: A perfluorinated polyimide comprising a repeating unit represented by general formula (1): ##STR1## and a perfluorinated poly(amic acid) comprising a repeating unit represented by general formula (6): ##STR2## wherein R.sub.1 is a tetravalent organic group; and R.sub.2 is a divalent organic group, provided that chemical bonds between carbon atoms and monovalent elements contained in R.sub.1 and R.sub.2 are exclusively carbon-to-fluorine bonds; methods for preparing them; and optical material including the perfluorinated polyimide. 1,4-Bis(3,4-dicarboxytrifluorophenoxy)-tetrafluorobenzene dianhydride, 1,4-difluoropyromellitic anhydride, 1,4-bis(3,4-dicarboxytrifluorophenoxy)-tetrafluorobenzene, 1,4-difluoropyromellitic acid, and 1,4-bis(3,4-dicyanotrifluorophenoxy)-tetrafluorobenzene as well as methods preparing them. The perfluorinated polyimide has a thermal stability and has a low optical loss in an optical communication wavelength region (0.8 to 1.7 .mu.m).
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: December 15, 1998
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Shinji Ando, Toru Matsuura, Shigekuni Sasaki, Fumio Yamamoto
  • Patent number: 5841001
    Abstract: The present invention provides an industrially advantageous process for the preparation of an optically active 2-halo-1-(substituted phenyl)ethanol useful as medicines, agricultural chemicals or as intermediates thereof; and a simple process for the preparation of an optically active substituted styrene oxide or 2-amino-1-(substituted phenyl)ethanol useful as medicines, agricultural chemicals or intermediates thereof. A 2-halo-1-(substituted phenyl)ethanol represented by the following general formula (I) is allowed to contact, in the presence of a carboxylic anhydride, with an enzyme stereoselectively catalyzing ester interchange to produce an optically active 2-halo-1-(substituted phenyl)ethanol: ##STR1## (wherein X represents a chlorine atom or a bromine atom, and R.sup.1, R.sup.2 and R.sup.3 may be the same or different and each represent a hydrogen atom, a halogen atom, a C.sub.1-5 alkyl group, a C.sub.1-5 haloalkyl group, a C.sub.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: November 24, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Ken Tanaka, Mari Yasuda, Makoto Ueda
  • Patent number: 5789582
    Abstract: A nuclear halogenated aromatic compound possessing cyano groups is produced by a method using as a raw material an aromatic compound which possesses cyano groups and assumes a solid state at room temperature and subjecting the raw material to a procedure comprising a step of melting and transporting the compound by a means transport-melting, a step of vaporizing the compound, a step of mixing the compound with a halogen gas, and a step of causing the vapor of the compound to react with the halogen gas in vapor phase in the presence of a catalyst sequentially in the order mentioned, which comprises maintaining a content of a self-condensate of the aromatic compound possessing cyano groups which arise during the melting of the aromatic compound possessing cyano groups in a gas of the compound which reacts with the halogen gas to a level of not more than 2.5 mol % based on the compound.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: August 4, 1998
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Osamu Kaieda, Koichi Hirota, Teruhisa Kajiwara, Norimasa Okuda, Hisakazu Shindo, Yoshiro Hanayama, Yujin Shoda, Toyohiko Kohno, deceased, Takashi Yodoshi, Masaru Awashima
  • Patent number: 5780662
    Abstract: New aromatic dicarboxylic acids, 1,4- or 2,6-Bis(p-carboxyphenoxy)naphthyl is prepared by the reaction of p-fluorobenzonitrile with 1,4-naphthalenediol, followed by hydrolysis. Wholly aromatic polyamides having superior solubility in a variety of organic solvents and have good thermal stability can be obtained by reacting the new aromatic dicarboxylic acids with aromatic diamines. Transparent, tough and flexible films of these polyamides can be cast from the solutions thereof and these polyamides are easily processable high-performance polymer materials.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: July 14, 1998
    Assignee: Industrial Technology Research Institute
    Inventors: Guey-Sheng Liou, Sheng-Huei Hsiao, Jen-Chang Yang
  • Patent number: 5698740
    Abstract: A hole-transport material having excellent hole-transport capability and durability, suitable for use in an organic EL device and as an organic photoconductive material, has the formula (1).
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: December 16, 1997
    Assignee: Toyo Ink Manufacturing Co., Ltd.
    Inventors: Toshio Enokida, Tadashi Ogawa, Yasumasa Suda
  • Patent number: 5621145
    Abstract: When a novel bisamidoxime compound represented by the following general formula: ##STR1## where R is an alkylidene group having 1 to 6 carbon atoms, or a perfluoroalkylidene group having 1 to 10 carbon atoms, is used as a vulcanizing agent for fluorine-containing elastomers having cyano groups as cross-linkable groups, the resulting vulcanizates having a satisfactory compression set are obtained without any problem of processability such as roll kneadability, etc.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: April 15, 1997
    Assignee: Nippon Mektron, Limited
    Inventors: Satoru Saito, Haruyoshi Tatsu, Lev Solomonovich, deceased, Ziefman Y. Vilovich, Postovoi S. Anatol'evich, Sterlin S. Rafailovich