Plural Benzene Rings Bonded Directly To The Same Acyclic Carbon Or Attached By An Acyclic Carbon Chain Patents (Class 570/184)
  • Patent number: 9029504
    Abstract: Particular compounds having a fluorene skeleton are superior in broad utility and stability, as a protecting reagent for liquid phase synthesis of amino acids and/or peptides.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: May 12, 2015
    Assignee: Ajinomoto Co., Inc.
    Inventor: Daisuke Takahashi
  • Patent number: 8999198
    Abstract: The present invention relates to 1,4-diethynylbenzene derivatives having substituents in the 2,3-position (cf. formula I, Claims), to the use thereof for high-frequency components, to liquid-crystalline media comprising the compounds, and to high-frequency components, in particular antennae, especially for the gigahertz range, comprising these media. The liquid-crystalline media serve, for example, for the phase shifting of microwaves for tuneable ‘phased-array’ antennae.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: April 7, 2015
    Assignee: Merck Patent GmbH
    Inventors: Volker Reiffenrath, Christian Jasper, Atsutaka Manabe, Elvira Montenegro, Detlef Pauluth
  • Publication number: 20140213822
    Abstract: Disclosed is a triphenylamine derivative represented by general formula (1): wherein R1, R2, R3, and R5 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted phenyl group, R4 represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted phenyl group, Ar represents a substituted or unsubstituted phenyl group, and m represents an integer of 1 to 3.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 31, 2014
    Applicant: TAKASAGO INTERNATIONAL CORPORATION
    Inventors: Junji NAKAMURA, Yuji NAKAYAMA
  • Patent number: 8753554
    Abstract: Novel polymer compositions of specified formula are converted into pellets of this invention by process technology provided by this invention. By forming a binder free melt of a polymer of such polymer compositions, and converting the melt into pellets as described here-in, pellets can be formed produce during production, handling, and use, no more than acceptably small amounts of “fines” or air-entrainable dusts.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: June 17, 2014
    Assignee: Albemarle Corporation
    Inventors: Govindarajulu Kumar, William J. Layman, Jr., Bo Liu, Douglas W. Luther, Arthur G. Mack
  • Publication number: 20140021405
    Abstract: The present invention relates to a liquid-crystal medium which comprises a component A which consists of one or more compounds of the formula IA (IA), in which the parameters have the respective meanings given in the claims or in the text, and to the corresponding, novel mesogenic compounds and to the preparation thereof. The present invention likewise relates to the use of these liquid-crystal media, in particular in components for high-frequency technology, and to components of this type which contain the media according to the invention, and to the production and use of these components. The components according to the invention are suitable, in particular, for phase shifters in the microwave and millimetre wave region, for microwave and millimetre wave array antennae and very particularly for so-called tuneable “reflectarrays”.
    Type: Application
    Filed: February 28, 2012
    Publication date: January 23, 2014
    Applicant: MERCK PATENT GMBH
    Inventors: Atsutaka Manabe, Dagmar Klass, Christian Jasper, Volker Reiffenrath, Detlef Pauluth
  • Patent number: 8557142
    Abstract: The present invention relates to bistolans of the formula I where one or more of the radicals L1 to L3 denote an Rx, where Rx denotes cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl, and the other parameters are as defined in Claim 1. The invention also encompasses liquid-crystalline media which comprise the title compounds, to components for high-frequency technology which comprise these media, in particular phase shifters and microwave array antennae.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 15, 2013
    Assignee: Merck Patent GmbH
    Inventors: Elvira Montenegro, Christian Jasper, Detlef Pauluth, Volker Reiffenrath, Atsutaka Manabe
  • Publication number: 20130221274
    Abstract: The present invention relates to 1,4-diethynylbenzene derivatives having substituents in the 2,3-position (cf. formula I, Claims), to the use thereof for high-frequency components, to liquid-crystalline media comprising the compounds, and to high-frequency components, in particular antennae, especially for the gigahertz range, comprising these media. The liquid-crystalline media serve, for example, for the phase shifting of microwaves for tuneable ‘phased-array’ antennae.
    Type: Application
    Filed: September 14, 2011
    Publication date: August 29, 2013
    Applicant: MERCK PATENT GMBH
    Inventors: Volker Reiffenrath, Christian Jasper, Atsutaka Manabe, Elvira Montenegro, Detlef Pauluth
  • Patent number: 8513346
    Abstract: A method for flame-retarding styrenic resins is disclosed wherein the method comprises incorporating in compositions an effective amount of at least one flame retardant compound comprising both aliphatic and aromatic bromine.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: August 20, 2013
    Assignee: Chemtura Corporation
    Inventors: Stephen B. Falloon, David W. Bartley, Julia E. Holland, Wayne Meyer, Steven Bakeis
  • Publication number: 20120182200
    Abstract: The present invention relates to a component for high-frequency technology or for the microwave range and millimetre wave range of the electromagnetic spectrum, characterised in that it contains a liquid-crystal compound of the formula I in which the parameters have the respective meanings given in the claims or in the text, or a liquid-crystal medium which itself comprises one or more compounds of this formula I, and to the corresponding, novel liquid-crystal media, to the use and preparation thereof, and to the production and use of the components. The components according to the invention are particularly suitable as phase shifters in the microwave and millimetre wave range, for microwave and millimetre wave array antennae and very particularly for so-called tuneable reflectarrays.
    Type: Application
    Filed: September 14, 2010
    Publication date: July 19, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Atsutaka Manabe, Mark Goebel, Dagmar Klass, Elvira Montenegro, Detlef Pauluth
  • Patent number: 8217207
    Abstract: High assay, reaction-derived decabromodiphenylethane product is prepared by feeding (i) diphenylethane or (ii) partially brominated diphenylethane having an average bromine number less than about two, or (iii) both of (i) and (ii), into the liquid confines of a reaction mixture. Such reaction mixture is (a) formed from components comprised of excess liquid bromine and aluminum-based Lewis acid bromination catalyst, and (b) maintained at one or more elevated reaction temperatures of from about 45°-90° C., and at least when elevated pressure is needed to keep a liquid state in the reaction mixture at the temperature(s) used, the reaction mixture is at such an elevated pressure, whereby ar-bromination occurs. The feeding is conducted at a rate slow enough to form high assay reaction-derived decabromodiphenylethane product, which is an effective flame retardant.
    Type: Grant
    Filed: August 5, 2011
    Date of Patent: July 10, 2012
    Assignee: Albemarle Corporation
    Inventors: Saadat Hussain, Arthur G. Mack
  • Publication number: 20120035401
    Abstract: Novel polymer compositions of specified formula are converted into pellets of this invention by process technology provided by this invention. By forming a binder free melt of a polymer of such polymer compositions, and converting the melt into pellets as described here-in, pellets can be formed produce during production, handling, and use, no more than acceptably small amounts of “fines” or air-entrainable dusts.
    Type: Application
    Filed: April 29, 2010
    Publication date: February 9, 2012
    Applicant: ALBEMARLE CORPORATION
    Inventors: Govindarajulu Kumar, William J. Layman, JR., Bo Liu, Douglas W. Luther, Arthur G. Mack
  • Publication number: 20110288225
    Abstract: High assay, reaction-derived decabromodiphenylethane product is prepared by feeding (i) diphenylethane or (ii) partially brominated diphenylethane having an average bromine number less than about two, or (iii) both of (i) and (ii), into the liquid confines of a reaction mixture. Such reaction mixture is (a) formed from components comprised of excess liquid bromine and aluminum-based Lewis acid bromination catalyst, and (b) maintained at one or more elevated reaction temperatures of from about 45°-90° C., and at least when elevated pressure is needed to keep a liquid state in the reaction mixture at the temperature(s) used, the reaction mixture is at such an elevated pressure, whereby ar-bromination occurs. The feeding is conducted at a rate slow enough to form high assay reaction-derived decabromodiphenylethane product, which is an effective flame retardant.
    Type: Application
    Filed: August 5, 2011
    Publication date: November 24, 2011
    Applicant: ALBEMARLE CORPORATION
    Inventors: Saadat Hussain, Arthur G. Mack
  • Patent number: 8034986
    Abstract: Solid-state highly brominated compounds such as solid brominated flame retardants with bromine contents of at least about 60 wt % often contain occluded bromine. Because of their high bromine contents, such compounds have relatively low solubility in common organic solvents. Despite this low solubility, the content of occluded bromine in such solid brominated compounds is effectively reduced by agitating a concentrated agitated slurry of the compound in an inert solvent at a suitable temperature for at least about 1 hour. Thereafter, solids with reduced content of occluded bromine are isolated or recovered from the slurry. Novel products having substantially reduced or eliminated occluded bromine contents and other very desirable characteristics are also provided.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: October 11, 2011
    Assignee: Albemarle Corporation
    Inventors: Saadat Hussain, Arthur G. Mack
  • Patent number: 7994372
    Abstract: Fluorinated paracyclophane compounds represented by the formula: where least one of R1 and R2 comprises a fluorinated moiety is disclosed. These compounds can be utilized as precursor dimer compounds to produce polymeric coatings comprising copolymers of trifluorinated paraxylylene, including flexible fluorinated paraxylylene coatings.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: August 9, 2011
    Assignee: Specialty Coating Systems, Inc.
    Inventors: Rakesh Kumar, Phillip Hanefeld, Sven Horst, Markus Meise, Andreas Greiner, Michael Bognitzki
  • Patent number: 7893306
    Abstract: A process for producing biphenyl derivatives represented by formula (1), including reacting a chlorine atom of a benzene derivative represented by formula (2) with metallic magnesium to form a Grignard reagent, and coupling two molecules of the Grignard reagent with each other in the presence of a catalyst. (wherein A represents at least one member selected from the group consisting of trifluoromethyl and fluoro, and n is an integer of 1 to 4.) (wherein A represents at least one member selected from the group consisting of trifluoromethyl and fluoro, and n is an integer of 1 to 4.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: February 22, 2011
    Assignees: Toray Fine Chemicals Co., Ltd.
    Inventors: Tamio Hayashi, Jiro Nakatani
  • Patent number: 7851662
    Abstract: High assay reaction-derived decabromodiphenylethane product is produced and provided. The process comprises feeding diphenylethane, a partially brominated diphenylethane, or both subsurface into the liquid phase of a reaction mixture formed from components comprising excess liquid bromine and aluminum-based Lewis acid bromination catalyst. The temperature of the reaction mixture, the catalyst concentration in the excess bromine in the reaction mixture, and the feed time are coordinated in the processes to produce high assay reaction-derived decabromodiphenylethane product. Ways of effecting such coordination are described.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: December 14, 2010
    Assignee: Albemarle Corporation
    Inventor: Bonnie Gary McKinnie
  • Publication number: 20100197950
    Abstract: The preparation of an intermediate, a process for the preparation thereof and the process of preparing [4-[3,3-Bis-(4-bromo-phenyl)-allyloxy]-2-methyl-phenoxy]-acetic acid using this intermediate are described.
    Type: Application
    Filed: June 6, 2007
    Publication date: August 5, 2010
    Inventors: Kaare Gyberg Rasmussen, Signe Maria Christensen, Rikke Eva Humble
  • Patent number: 7645910
    Abstract: Process for the obtaining of 1-adamantane (tricycle[3.3.1.1 (3,7)]decane) derivatives, or of a pharmaceutically acceptable salt thereof, based on a carboxylation reaction, via metallation, of a precursor compound with an adequate leaving group. It also comprises the preparation of the precursor compound by means of a selective coupling of the corresponding boron, magnesium or zinc derivative with the corresponding disubstitute aromatic derivative. It is especially useful for the obtaining of Adapalene at industrial scale with good yield and high purity.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: January 12, 2010
    Assignee: Finorga SAS
    Inventors: Alexander Christian Comely, Marta Marfil Sánchez, Llorenç Rafecas Jané, Xavier Verdaguer Espaulella
  • Patent number: 7625988
    Abstract: The present invention is directed to novel flame retardant monomers and polymers, wherein the flame retardant properties of the polymers are provided by functionality in pendant groups attached to a polymer backbone (as opposed to the polymer backbone itself possessing flame retardant properties. The present invention is also directed to methods of making such polymers and monomers, and articles of manufacture incorporating such monomers and polymers.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: December 1, 2009
    Assignee: William Marsh Rice University
    Inventors: James M. Tour, Joshua L. Jurs, Jason J. Stephenson
  • Patent number: 7605207
    Abstract: Polybrominated bisaryl compounds containing bromomethyl or bromomethylene groups are provided, as well as flameproof polymeric formulations comprising the compounds. The novel compounds exhibit a good thermal stability, and are particularly suitable for flame-retarding polystyrene thermoplastic foams. A process for making the polybrominated bisaryl compounds is also provided.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: October 20, 2009
    Assignee: Bromine Compounds Ltd.
    Inventors: Jakob Oren, Nasif Yassin, Joseph Zilberman, Dorit Canfi, Ron Frim, Dov Beruben
  • Publication number: 20090227816
    Abstract: A process for preparing a polybrominated product such as decabromodiphenyl ether and decabromodiphenyl ethane, which comprises brominating a reduced particle size precursor of said polybrominated product in an organic solvent or in bromine as a solvent, wherein the bromination is carried out either concurrently with or subsequent to said particle size reduction, forming the polybrominated product and separating the same from the reaction mixture.
    Type: Application
    Filed: February 26, 2009
    Publication date: September 10, 2009
    Applicant: BROMINE COMPOUNDS LTD.
    Inventors: Haim Stollar, Gershon Miaskovski, Aharon Meirom, Michael Peled, Jie Yu, Iris Ben David
  • Publication number: 20090227812
    Abstract: A compound represented by the formula below is provided. (In the formula, X and Y denote a hydroxy group, an amino group, or a halogen atom, and X and Y are groups that are different from each other.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 10, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Youhei KUBO, Koki Nakamura, Katsuyuki Watanabe
  • Patent number: 7462750
    Abstract: Fluorinated paracyclophane compounds represented by the formula where least one of R1 and R2 comprises a fluorinated moiety is disclosed. These compounds can be utilized as precursor dimer compounds to produce polymeric coatings comprising copolymers of trifluorinated paraxylylene.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: December 9, 2008
    Assignee: Specialty Coating Systems, Inc.
    Inventors: Phillip Hanefeld, Sven Horst, Markus Meise, Michael Bognitzki, Andreas Greiner, Rakesh Kumar
  • Publication number: 20080281024
    Abstract: Polybrominated bisaryl compounds containing bromomethyl or bromomethylene groups are provided, as well as flameproof polymeric formulations comprising the compounds. The novel compounds exhibit a good thermal stability, and are particularly suitable for flame-retarding polystyrene thermoplastic foams. A process for making the polybrominated bisaryl compounds is also provided.
    Type: Application
    Filed: November 16, 2006
    Publication date: November 13, 2008
    Applicant: BROMINE COMPOUNDS LTD.
    Inventors: Jakob Oren, Nasif Yassin, Joseph Zilberman, Dorit Canfi, Ron Frim, Dov Beruben
  • Publication number: 20080228015
    Abstract: High assay reaction-derived decabromodiphenylethane product is produced and provided. The process comprises feeding diphenylethane, a partially brominated diphenylethane, or both subsurface into the liquid phase of a reaction mixture formed from components comprising excess liquid bromine and aluminum-based Lewis acid bromination catalyst. The temperature of the reaction mixture, the catalyst concentration in the excess bromine in the reaction mixture, and the feed time are coordinated in the processes to produce high assay reaction-derived decabromodiphenylethane product. Ways of effecting such coordination are described.
    Type: Application
    Filed: August 17, 2007
    Publication date: September 18, 2008
    Applicant: ALBEMARLE CORPORATION
    Inventor: Bonnie Gary McKinnie
  • Publication number: 20080227903
    Abstract: High assay, reaction-derived decabromodiphenylethane product is prepared by feeding (i) diphenylethane or (ii) partially brominated diphenylethane having an average bromine number less than about two, or (iii) both of (i) and (ii), into the liquid confines of a reaction mixture. Such reaction mixture is (a) formed from components comprised of excess liquid bromine and aluminum-based Lewis acid bromination catalyst, and (b) maintained at one or more elevated reaction temperatures of from about 45°-90° C., and at least when elevated pressure is needed to keep a liquid state in the reaction mixture at the temperature(s) used, the reaction mixture is at such an elevated pressure, whereby ar-bromination occurs. The feeding is conducted at a rate slow enough to form high assay reaction-derived decabromodiphenylethane product, which is an effective flame retardant.
    Type: Application
    Filed: August 17, 2007
    Publication date: September 18, 2008
    Applicant: ALBEMARLE CORPORATION
    Inventors: Saadat Hussain, Arthur G. Mack
  • Publication number: 20080221230
    Abstract: The invention is a flame retardant for styrene foams. The flame retardant contains both aromatic bromine and an olefin. The olefin is an internal olefin. Desirable flame retardants are selected from: formula I: wherein R1 is C1-C6 and optionally containing a heteroatom or olefin; R2 is C1-C6 and optionally containing a heteroatom or olefin; and R3-R12 is H, C1-C6 (optionally containing a heteroatom), or halogen; and further wherein the compound of formula I is present in a concentration of at least 50 percent of a trans isomer; formula II: wherein R1 is Halogen, C1-C6 and optionally containing a heteroatom or olefin; R2 is Halogen, C1-C6 and optionally containing a heteroatom or olefin; and R3-R7 is H, C1-C6 (optionally containing a heteroatom), or halogen; and formula III: wherein R1 is Halogen, C1-C6 and optionally containing a heteroatom or olefin; R2 is Halogen, H, C1-C6 and optionally containing a heteroatom or olefin; and R3-R6 is H, halogen.
    Type: Application
    Filed: November 30, 2007
    Publication date: September 11, 2008
    Inventors: Mark V. Hanson, Stephen B. Falloon, Wayne Meyer
  • Publication number: 20080194889
    Abstract: Bromine is scrubbed from a gaseous mixture of bromine and hydrogen bromide by passing the mixture into a mixture formed from (i) diphenylethane and/or partially brominated diphenylethane with average bromine number less than about 2 and (ii) a catalytic quantity of iron and/or iron halide in which the halogen atoms are bromine atoms and/or chlorine atoms. Component (i) is brominated, and during such bromination, the mixture is kept hot enough to melt the organics to provide a liquid phase in the scrubber. Gaseous mixtures of bromine and hydrogen bromide are formed in processes of the invention in which decabromodiphenylethane products are produced using the partially brominated diphenylethane as feed to the bromination, which is conducted using an aluminum-based catalyst. Effective ways of removing iron catalyst residues from partially brominated diphenylethane or from decabromodiphenylethane product are also described.
    Type: Application
    Filed: August 17, 2007
    Publication date: August 14, 2008
    Applicant: ALBEMARLE CORPORATION
    Inventor: Bonnie Gary McKinnie
  • Publication number: 20080183021
    Abstract: A process for preparing substituted biphenyls in which R1=nitro, amino or NHR3, R2=CN, NO2, halogen, C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C1-C6-alkoxy, C1-C6-haloalkyl, C1-C6-alkylcarbonyl or phenyl, R3=C1-C4-alkyl, C2-C4-alkenyl or C2-C4-alkynyl, m=1 or 2; n=0 to 3, which comprises reacting a compound II in the presence of a base and of a palladium catalyst selected from the group of: a) palladium-triarylphosphine or -trialkylphosphine complex with palladium in the zero oxidation state, b) salt of palladium in the presence of triarylphospine or trialkylphosphine as a complex ligand or c) metallic palladium applied to support if appropriate, in the presence of triarylphosphine or trialkylphosphine, in a solvent, with a diphenylborinic acid (III)
    Type: Application
    Filed: March 2, 2006
    Publication date: July 31, 2008
    Inventors: Stefan Engel, Tanja Oberding
  • Patent number: 7378449
    Abstract: An additive mixture useful as a flame retardant is described. The mixture is comprised of (i) a poly(bromophenyl)alkane having in the molecule in the range of 13 to 60 carbon atoms and in the range of two to four aryl groups and (ii) a poly(bromophenyl)bromoalkane having in the molecule in the range of 13 to 60 carbon atoms and in the range of two to four aryl groups, said poly(bromophenyl)bromoalkane being in an amount which is greater than 25 wt %, based on the total weight of the additive mixture. A facile process for making the poly(bromophenyl)bromoalkane is also described.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: May 27, 2008
    Assignee: Albemarle Corporation
    Inventors: Raymond B. Dawson, Saadat Hussain
  • Publication number: 20080114195
    Abstract: Solid-state highly brominated compounds such as solid brominated flame retardants with bromine contents of at least about 60 wt % often contain occluded bromine. Because of their high bromine contents, such compounds have relatively low solubility in common organic solvents. Despite this low solubility, the content of occluded bromine in such solid brominated compounds is effectively reduced by agitating a concentrated agitated slurry of the compound in an inert solvent at a suitable temperature for at least about 1 hour. Thereafter, solids with reduced content of occluded bromine are isolated or recovered from the slurry. Novel products having substantially reduced or eliminated occluded bromine contents and other very desirable characteristics are also provided.
    Type: Application
    Filed: August 17, 2007
    Publication date: May 15, 2008
    Applicant: ALBEMARLE CORPORATION
    Inventors: Saadat Hussain, Arthur G. Mack
  • Patent number: 7129384
    Abstract: This invention relates to a novel process which comprises feeding a mixture formed from diphenylethane and bromine to a stirrable reaction mass comprised of bromine and a bromination catalyst to yield a decabromodiphenylethane wet cake which can be most economically treated to provide a high quality decabromodiphenylethane product.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: October 31, 2006
    Assignee: Albemarle Corporation
    Inventors: John C. Parks, David H. Knoebel, Lawrence M. Jenkins, George H. Ransford, Gary L. Bowman, Jr., Saadat Hussain
  • Patent number: 6958423
    Abstract: This invention relates to a novel process which comprises feeding a mixture formed from diphenylethane and bromine to a stirrable reaction mass comprised of bromine and a bromination catalyst to yield a decabromodiphenylethane wet cake which can be most economically treated to provide a high quality decabromodiphenylethane product.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: October 25, 2005
    Assignee: Albemarle Corporation
    Inventors: John C. Parks, David H. Knoebel, Lawrence M. Jenkins, George H. Ransford, Gary L. Bowman, Jr., Saadat Hussain
  • Patent number: 6875895
    Abstract: Provided is a bis(diphenylvinyl)arene compound having a reactive functional group on phenyl group, represented by below formula (1), wherein, Ar is an arylene group and has one or more substituents; R1-R22 each independently represent a hydrogen atom, a halogen atom, cyano group, nitro group, etc., and at least one of R1-R20 is a halogen atom, etc. The arene compound has sufficient solubility in an organic solvent and excellent reactivity.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: April 5, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Takahiro Ueoka, Hideyuki Ikehira, Yoshiaki Tsubata
  • Patent number: 6858764
    Abstract: A method for preparing bromofluorenes includes a step of dispersing a compound selected from the group consisting of fluorene, fluorenone, and derivatives of fluorene and fluorenone in water to prepare a disperse system. Bromination is initiated by adding bromine Br2 into the disperse system. Thus, bromofluorenes can be efficiently and economically prepared without using any environmentally harmful organic solvent requiring a high cost to dispose of.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: February 22, 2005
    Assignee: JFE Chemical Corporation
    Inventors: Tetsuo Hachiya, Naoyuki Kitamura, Hiroaki Mori, Toshiyuki Yasuda
  • Patent number: 6841707
    Abstract: A method of producing decabromodiphenyl alkanes includes the steps of charging a reaction vessel with bromine and a bromination catalyst and introducing a diphenyl alkane into the vessel at a location above the level of the charge bromine and catalyst. A dip tube apparatus for introducing the diphenyl alkane includes an inner tube and an outer tube, each of which are disposed above the surface of the bromine reaction vessel. The inner tube is fitted with a plug having an opening. Diphenyl alkane flows through the inner tube, out the opening in the plug, and into the reactor. The outer tube is disposed around and along the inner tube. Reaction mass from the vessel is recirculated from the vessel, through the outer tube and back to the vessel so as to form a curtain of reaction mass around the stream of diphenyl alkane being simultaneously fed into the reaction vessel.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: January 11, 2005
    Assignee: Pabu Services, Inc.
    Inventors: Stephen B. Falloon, Samuel Mulligan, Donavon W. McElveen, Ray W. Atwell
  • Patent number: 6812311
    Abstract: A method of producing a highly stable packaging substrate in which are provided a first precursor having a first backbone and a first ethynyl group, and a second precursor having a second backbone and a second ethynyl group. Furthermore provided is a crosslinker having a first and a second reactive group. The first precursor, the second precursor, the crosslinker, and a solvent are applied onto a surface to form an electrically insulating layer. The first ethynyl group is reacted with the first reactive group in a first carbon-carbon bond formation reaction and the second ethynyl group is reacted with the second reactive group in a second carbon-carbon bond formation reaction to crosslink the first backbone with the second backbone, thereby forming the packaging substrate. The solvent is removed in a further step.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: November 2, 2004
    Assignee: Honeywell International Inc.
    Inventors: Thomas McCarthy, Michael Wagaman, David Schwind
  • Publication number: 20040106758
    Abstract: A curable polyvinyl benzyl compound represented by the following general formula (1): 1
    Type: Application
    Filed: October 8, 2003
    Publication date: June 3, 2004
    Inventors: Shouji Nishiguchi, Tatsuhiro Ikeya, Haruo Yoshida
  • Patent number: 6743825
    Abstract: An additive mixture useful as a flame retardant is described. The mixture is comprised of (i) a poly(bromophenyl)alkane having in the molecule in the range of 13 to 60 carbon atoms and in the range of two to four aryl groups and (ii) a poly(bromophenyl)bromoalkane having in the molecule in the range of 13 to 60 carbon atoms and in the range of two to four aryl groups, said poly(bromophenyl)bromoalkane being in an amount which is greater than 25 wt %, based on the total weight of the additive mixture. A facile process for making the poly(bromophenyl)bromoalkane is also described.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: June 1, 2004
    Assignee: Albemarle Corporation
    Inventors: Raymond B. Dawson, Saadat Hussain
  • Patent number: 6610219
    Abstract: Functional optical materials for optical systems that are typically useful in optical waveguides, optical switching systems, optical modulators, optical computing systems and the like. Included are polymer systems and electrooptical chromophores. Polymers are thermoplastic and/or thermosetting polymers and are blended or co-polymerized with the electrooptic chromophore. The thermoplastic or thermosetting polymer selected from an acrylic/methacrylic, polyester, polyurethane, polyimide, polyamide, epoxy resin, or hybrid (organic-inorganic) or nanocomposite polyester polymer. The electrooptic chromophore is selected from a substituted aniline, substituted azobenzene, substituted stilbene, or substituted imine. Methods for improving adhesion promotion for the various novel materials are also provided.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: August 26, 2003
    Assignee: Battelle Memorial Institute
    Inventors: Vincent D. McGinniss, Steven M. Risser
  • Patent number: 6579577
    Abstract: There is provided a liquid crystalline compound having a high voltage holding ratio which has a very small degree of temperature dependence, a low threshold voltage which has a very small degree of temperature dependence, a high &Dgr;n, and excellent miscibility with other liquid crystal materials at low temperature; a liquid crystal composition; and a liquid crystal display element, and the liquid crystalline compound is a substituted benzene derivative represented by general formula (1), where, R represents a straight chain or branched alkyl group having 1 to 20 carbon atoms in which each of optional and nonadjacent methylene groups (—CH2—) may be substituted by an oxygen atom; X represents a halogen atom, —CF3, —CF2H, —CFH2, —OCF3 or —OCF2H; each of Z1 and Z2 independently represents —(CH2)2—, —(CH2)4—, —CH2O—, —OCH2— or a covalent bond, but Z1 and Z2 are not covalent bonds simultaneously; each of Y1
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: June 17, 2003
    Assignee: Chisso Corporation
    Inventors: Tomoyuki Kondo, Shuichi Matsui, Kazutoshi Miyazawa, Hiroyuki Takeuchi, Yasuhiro Kubo, Fusayuki Takeshita, Etsuo Nakagawa
  • Publication number: 20020183540
    Abstract: The present invention seeks to provide novel tetraarylethylene compounds which are substituted on the aryl rings ortho to the ethylenic carbon atoms and processes for the preparation for such compounds. The compounds have potential use as molecular templates.
    Type: Application
    Filed: June 21, 2002
    Publication date: December 5, 2002
    Applicant: THE GOVERNORS OF THE UNIVERSITY OF ALBERTA
    Inventors: Jeffrey Mark Stryker, Udo Hendrick Verkerk, Megumi Fujita, Makoto Yasuda
  • Publication number: 20020147347
    Abstract: Aromatic methylidene compounds of the following general formula 1
    Type: Application
    Filed: January 24, 2002
    Publication date: October 10, 2002
    Applicant: Matsushita Electirc Industrial Co., Ltd.
    Inventor: Mitsuru Hashimoto
  • Patent number: 6194620
    Abstract: Dichloro-tetrafluoro-[2,2]-paracyclophane (formula I), which is a novel compound useful as a material for forming a coating film by chemical vapor deposition, and a process for manufacturing thereof and poly-&agr;&agr;-difluoro-chloro-para-xylylene film prepared therefrom are disclosed. Dichloro-tetrafluoro-[2,2]-paracyclophane is manufactured by chlorinating tetrafluoro-[2,2]-paracyclophane. The film to be formed by chemical vapor deposition of dichloro-tetrafluoro-[2,2]-paracyclophane has remarkably improved thermostability, as compared with the conventional products and is expected to be applied in various fields.
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: February 27, 2001
    Assignee: Daisan Kasei Kabushiki Kaisha
    Inventor: Hiroshi Maruyama
  • Patent number: 6117371
    Abstract: A preferred process for producing a brominated, non-fused aromatic composition involves a continuous bromination in a continuous, mixed reactor such as a continuous stirred tank reactor. Bromine and the aromatic substrate, and optionally a bromination catalyst, are continuously fed to a reaction zone to form a reaction mixture, and the reaction mixture is continuously withdrawn from the reaction zone after an established average residence time. Bromination levels can be readily controlled by controlling the average residence time of the reaction mixture within the reaction zone. Preferred continues processes also provide mixed, brominated compositions having product distributions which are substantially broader than that obtained by batch brominations conducted to achieve the same level of bromination. Preferred products thus have broad melting ranges which are advantageous in compounding operations.
    Type: Grant
    Filed: April 21, 1998
    Date of Patent: September 12, 2000
    Assignee: Great Lakes Chemical Corporation
    Inventor: Arthur G. Mack
  • Patent number: 6057006
    Abstract: The invention relates to fluorocyclohexane derivatives of the formula I ##STR1## in which R.sup.1, Z.sup.1, Z.sup.2, L.sup.1, L.sup.2, L.sup.3 and X are as defined as below:X is alkyl or alkoxy having 1 to 10 carbon atoms which is unsubstituted or substituted by halogen, alkenyl or alkenyloxy having 2 to 10 carbon atoms which is unsubstituted or substituted by --CN, --CF.sub.3 or --F, or is --CN, --F, --OCHF.sub.2, --OCF.sub.3, --OCHFCF.sub.3 or --OCF.sub.2 CF.sub.3,L.sup.1, L.sup.2 and L.sup.3 are each, independently of one another, H or F,R.sup.1 is H, an alkyl or alkenyl radical having 1-12 carbon atoms which is unsubstituted, monosubstituted by CN or CF.sub.3 or substituted by halogen, where one or more non-adjacent CH.sub.2 groups in these radicals may also, in each case independently of one another, be replaced by --O--, --S--, --CO--, --.diamond.--, --CO--O--, --O--CO-- or --O--CO--O--,Z.sup.1 and Z.sup.2 are each, independently of one another, --CO--O--, --O--CO--, --CH.sub.2 O--, --O--, --O--CH.sub.
    Type: Grant
    Filed: June 4, 1998
    Date of Patent: May 2, 2000
    Assignee: Merck Patent Gesellschaft
    Inventors: Peer Kirsch, Kazuaki Tarumi, Joachim Krause
  • Patent number: 6008283
    Abstract: Flame retardants comprising oligomeric bromine-containing compounds comprising aryl groups that are connected by aliphatic chains are described. Flame retardant compositions comprising the flame retardants of the present invention and flame retardant aids are also described. Polymeric compositions comprising the flame retardants of the present invention optionally combined with a flame retardant aid, along with a method of fireproofing a material, are further described.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: December 28, 1999
    Assignee: Great Lakes Chemical Corporation
    Inventors: Richard S. Rose, Gurudas Zingde, David M. Hemmerly
  • Patent number: 5968963
    Abstract: Certain compounds have been synthesized and found to be effective inhibitors of phospholipase A.sub.2 (PLA.sub.2), and thereby useful in the treatment of intestinal cholesterol absorption and the disease states arising therefrom, such as hypercholesterolemia and coronary artery disease.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: October 19, 1999
    Assignee: Warner-Lambert Company
    Inventor: Reynold Homan
  • Patent number: 5846515
    Abstract: Calixarene conjugates useful for imaging, particularly magnetic resonance imaging (MRI) and computed tomography (CT) are described. Said calixarene conjugates comprise (i) a calixarene backbone, and (ii) at least one imaging moiety linked thereto, and may be of the formula: ##STR1## wherein at least one of the R.sup.1 and R.sup.4 substituents comprises an imaging moiety, the remaining R.sup.1 and R.sup.4 substituents are spectator groups, J is an ortho-linker, and n is an integer from 4 to 8. Imaging moieties useful for CT imaging include those comprising two or more iodine atoms. Imaging moieties useful for MRI include (i) organic moieties comprising four or more fluorine atoms; (ii) nitroxyl spin labeled moieties; and (iii) metal chelate moieties.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: December 8, 1998
    Assignee: Molecular Biosystems, Inc.
    Inventors: Ashwin M. Krishnan, Rolf Lohrmann
  • Patent number: RE36849
    Abstract: Anisotropic compounds of the formula (1) specified in claim 1 are suitable, owing to their low .DELTA..epsilon./.epsilon..perp. values for liquid crystal displays which have high information densities of for examples up to 10.sup.6 image dots and accordingly need to be highly multiplexible; compared with known compounds they offer improved application properties and are relatively simple to synthesize.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: September 5, 2000
    Assignee: Merck Patent GmbH
    Inventors: Hans P. Schad, Stephen M. Kelly, Eike Poetsch, Reinhard Hittich, Georg Weber