From Organic Reactant Containing A Sulfur To Oxygen Bond, E.g., -s(=o), Etc. Patents (Class 528/391)
  • Patent number: 5328968
    Abstract: An arylene sulfide polymer having derivatized end-groups and a process for preparing derivatized arylene sulfide polymer comprising contacting at an elevated temperature, an arylene sulfide polymer, a compound having the formula ##STR1## wherein R' is selected from the group consisting of an alkyl radical having 1 to about 17 carbon atoms, an aryl radical having 6 to about 16 carbon atoms, and combinations thereof and X is selected from the group consisting of chlorine and bromine, and a solvent which is stable in the presence of the compound and is capable of dissolving the arylene sulfide polymer.
    Type: Grant
    Filed: November 13, 1992
    Date of Patent: July 12, 1994
    Assignee: Phillips Petroleum Company
    Inventor: Dirk M. Sutherlin
  • Patent number: 5312897
    Abstract: Electroactive polymers are provided which contain alternating phenyl rings and nitrogen atoms, and which contain both quinoid mer units and benzenoid mer units. The polymers are formed by poly(condensation) of N-phenylhydroxylamine or derivatives thereof under anhydrous conditions in the presence of a Lewis acid catalyst. Methods for producing films, fibers and shaped articles of the polymers are provided as well.
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: May 17, 1994
    Assignee: Neste Oy
    Inventor: Floyd Klavetter
  • Patent number: 5310781
    Abstract: A self-doped conducting polymer having along its backbone a .pi.-electron conjugated system which comprises a plurality of monomer units, between about 0.01 and 100 mole % of the units having covalently linked thereto at least one Bronsted acid group. The conductive zwitterionic polymer is also provided, as are monomers useful in the preparation of the polymer and electrodes comprising the polymer.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: May 10, 1994
    Assignee: The Reagents of the University of California
    Inventors: Fred Wudl, Alan Heeger
  • Patent number: 5290887
    Abstract: Epoxy resins containing more than one vicinal epoxide group per molecule and at least one thiadiazole, oxadiazole or both thiadiazole and oxadiazole moiety per molecule are disclosed, as well as curable and cured compositions thereof. Certain of these epoxy resins possess enantiotropic liquid crystallinity. These enantiotropic epoxy resins are useful in preparing copolymers with high glass transition temperatures and liquid crystalline morphology, which can result in enhanced unidirectional mechanical properties. These epoxy resins are useful in coating, casting, encapsulation, electronic or structural laminate or composite, filament winding or molding applications.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: March 1, 1994
    Assignee: The Dow Chemical Company
    Inventors: Robert E. Hefner, Jr., Joseph A. Schomaker, Jimmy D. Earls
  • Patent number: 5288893
    Abstract: This invention provides novel organosulfonimidates and a method for preparing both the present sulfonimidates and those disclosed in the prior art. Some of the sufonimidates can be condensed under relatively mild conditions to form polyorganooxothiazenes.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: February 22, 1994
    Assignee: Dow Corning Corporation
    Inventor: Aroop K. Roy
  • Patent number: 5283270
    Abstract: Disclosed are glycidyl diamines having the formulas ##STR1## where n is 1 or 2, m is 0, 1, or 2, X is Y or ##STR2## and Y is --, O, S, SO, SO.sub.2, CO, C(CH.sub.3).sub.2, or C(CF.sub.3).sub.2. An epoxy resin can be made by mixing the glycidyl diamine with an epoxy curing agent. The epoxy resins can be used as adhesives or to make composites.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: February 1, 1994
    Assignee: Occidental Chemical Corporation
    Inventors: Robert A. Buchanan, Robert L. Ostrozynski
  • Patent number: 5281675
    Abstract: Novel cyclic imino ether compositions containing one or more mesogenic moieties, when polymerized, result in products having improved properties.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: January 25, 1994
    Assignee: The Dow Chemical Company
    Inventors: Robert E. Hefner, Jr., Jimmy D. Earls
  • Patent number: 5280104
    Abstract: A process for preparing poly(arylene sulfide) with reduced metal contamination is produced by contacting a dihaloaromatic compound, a sulfur source, a polar organic compound, and an alkali metal carboxylate in a reaction vessel wherein at least the liquid contacting parts of the vessel are constructed of titanium. In another aspect of the invention a polymer produced by the above described process is provided.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: January 18, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Jon F. Geibel, Harold D. Yelton
  • Patent number: 5273793
    Abstract: The present invention is directed to epoxy-based polymeric nonlinear optical materials in which a nonlinear optical active moiety or functionality forms the crosslink between polymer chains and a process for making the nonlinear optical (NLO) epoxy polymer including heating an epoxy resin and a curing agent such as a bi- or tri-functional aromatic amine containing an electron-withdrawing group, for example, diamino diphenylsulfone and poling the mixture under high voltage at elevated temperature for a period of time to bring about orientation of the nonlinear optical moieties in the polymer. The polymers have enhanced stability over polymers in which only one end of an NLO active moiety is attached to the polymer chain.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: December 28, 1993
    Assignee: The Dow Chemical Company
    Inventors: John J. Kester, Mark D. Newsham
  • Patent number: 5266365
    Abstract: The present invention is directed to an epoxy-containing polymeric material having nonlinear optical properties, particularly a glycidyl amine polymer, and a process for making the nonlinear optical (NLO) epoxy-containing polymeric material including poling the polymeric material under high voltage at elevated temperature for a period of time to bring about orientation of the nonlinear optical functionalities in the polymer. The polymers have enhanced thermal stability and good NLO properties.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: November 30, 1993
    Assignee: The Dow Chemical Company
    Inventors: John J. Kester, H. Craig Silvis
  • Patent number: 5266674
    Abstract: An arylene sulfide copolymer and a process for preparing same by contacting a mixture of two structurally different dihaloromatic compounds, at least one organic amide, at least one sulfur-containing compound, and water, and continuous long fiber reinforced plastics containing arylene sulfide copolymer as the polymer matrix or containing arylene sulfide copolymer in a thermoplastic resin matrix.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: November 30, 1993
    Assignee: Phillips Petroleum Company
    Inventor: Michael C. Yu
  • Patent number: 5262253
    Abstract: This invention is directed to solid electrolytes containing a solid polymeric matrix derived from vinyl sulfonate polyalkylene oxides.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: November 16, 1993
    Assignee: Valence Technology, Inc.
    Inventor: Milton N. Golovin
  • Patent number: 5258489
    Abstract: A polymer having repeating units corresponding to the structure ##STR1## wherein R is selected from the group consisting of ##STR2## where z is 1, 2, 3, or 4, A is a divalent substituted or unsubstituted aromatic radical, y is in the range of 0.10 to 0 and x is in the range of 0.02 to 0.90 and n is at least 50.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: November 2, 1993
    Assignee: Eastman Chemical Company
    Inventors: David R. Fagerburg, Jospeh J. Watkins, Paul B. Lawrence
  • Patent number: 5256765
    Abstract: A pharmaceutical composition comprising a therapeutic agent, together with a polymeric delivery vehicle, the vehicle being made of poly(phosphoesters).
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: October 26, 1993
    Assignee: The Johns Hopkins University School of Medicine
    Inventor: Kam W. Leong
  • Patent number: 5254670
    Abstract: Novel polyaniline derivatives soluble in general organic solvents are provided without impairment of the inherent good properties of the corresponding polyanilines. The novel polyaniline derivatives are polymers represented by the following formula (I): ##STR1## wherein Y means a group represented by the following formula: R.sub.1 CO--, R.sub.2 S--, R.sub.2 SO--, R.sub.2 SO.sub.2 -- or R.sub.5 --O--R.sub.4).sub.k OR.sub.3 --, R.sub.1 through R.sub.5 being particular substituent groups, k is an integer of 0-5, and n and m independently represent polymerization degree and are integers satisfying the following equations: m/(n+m)=0.01-1 and n+m=20-1000. They can each be produced by reacting a halide, which is represented by the following formula: Y-X wherein Y has the same meaning as described above and X means a chlorine or bromine atom, to a reduced polyaniline.
    Type: Grant
    Filed: April 30, 1991
    Date of Patent: October 19, 1993
    Assignee: Tomoegawa Paper Co., Ltd.
    Inventor: Osamu Oka
  • Patent number: 5248758
    Abstract: Compounds containing at least one cyanate group, at least one maleimide group and at least one rodlike mesogenic moiety are prepared by reacting one or more aminophenols containing one or more rodlike mesogenic moieties with a stoichiometric quantity of a maleic anhydride per amine group of said aminophenol and then cyanating the resulting phenolic functional maleimide.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: September 28, 1993
    Assignee: The Dow Chemical Company
    Inventors: Robert E. Hefner, Jr., Jimmy D. Earls
  • Patent number: 5248757
    Abstract: Compounds containing at least one cyanate group, at least one maleimide group and at least one rodlike mesogenic moiety are prepared by reacting one or more aminophenols containing one or more rodlike mesogenic moieties with a stoichiometric quantity of a maleic anhydride per amine group of said aminophenol and then cyanating the resulting phenolic functional maleimide.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: September 28, 1993
    Assignee: The Dow Chemical Company
    Inventors: Robert E. Hefner, Jr., Jimmy D. Earls
  • Patent number: 5247054
    Abstract: An organic polymer ferromagnetic material characterized in that the material comprises a polymer obtained by subjecting to plasma polymerization or oxidation polymerization a methane derivative having two substituents and represented by the formula ##STR1## wherein A is an electron accepting group, and B is an electron donating group, or by copolymerizing the methane derivative with a diarylmethane derivative represented by the formula ##STR2## wherein R.sup.1 is a substituted or unsubstituted phenyl group by plasma polymerization or oxidation polymerization.
    Type: Grant
    Filed: August 1, 1990
    Date of Patent: September 21, 1993
    Assignee: Otsuka Kagaku Kabushiki Kaisha
    Inventors: Hitoshi Tanaka, Tsuneyuki Sato, Todatoshi Ota, deceased, Michio Sasaoka
  • Patent number: 5241044
    Abstract: A process for preparing poly(p-phenylene)s comprises reacting dihydroxy aromatic compounds such as orthoquinone and bisphenols with halogen-substituted aliphatic sulfonic acids, halogen sulfonic acid, or their anhydrides. The monomers thus formed are subsequently polymerized with Ni(0) catalysts to yield the desired polymers. The monomers or polymers may be functionalized with reactive groups.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: August 31, 1993
    Assignee: Edison Polymer Innovation Corporation
    Inventor: Virgil Percec
  • Patent number: 5239044
    Abstract: A polyarylsulphone is prepared by the polycondensation of a bisphenol with an aryl dichloride, at least one of which contains a sulphone group, in the presence of a base and introducing into the reaction mixture less than 5% mole, relative to the aryl dichloride, of 4,4'-difluorodiphenylsulphone. The bisphenol and aryldichloride can be of 4,4'-dihydroxydiphenylsulphone and 4,4'-dichlorodiphenylsulphone respectively. The difluoro compound is added when the polymerisation is essentially complete. The polymer product if of improved quality.
    Type: Grant
    Filed: October 13, 1992
    Date of Patent: August 24, 1993
    Assignee: Imperial Chemical Industries, PLC
    Inventors: Richard R. Cooper, David G. Parker
  • Patent number: 5235033
    Abstract: Alpha-morpholino subunits and polymer compositions composed of alpha-morpholino subunits are disclosed. These subunits can be linked together by uncharged linkages, one to three atoms in length, joining the morpholino nitrogen of one subunit to the 5' exocyclic carbon of an adjacent subunit. Each subunit contains a purine or pyrimidine base-pairing moiety effective to bind by hydrogen bonding to a specific base or base-pair in a target polynucleotide. The polymers of the present invention can be used in place of standard RNA or DNA oligomers for a number of standard laboratory procedures, for example, as probes in solid-phase systems and nucleic acid hybridization analyses. Further, the polymers of the present invention have potential use as therapeutic agents in anti-sense-type technologies.
    Type: Grant
    Filed: December 20, 1989
    Date of Patent: August 10, 1993
    Assignee: Anti-Gene Development Group
    Inventors: James E. Summerton, Dwight D. Weller, Eugene P. Stirchak
  • Patent number: 5233019
    Abstract: This invention provides novel organosulfonimidates and a method for preparing both the present sulfonimidates and those disclosed in the prior art. Some of the sulfonimidates can be condensed under relatively mild conditions to form polyorganooxothiazenes.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: August 3, 1993
    Assignee: Dow Corning Corporation
    Inventor: Aroop K. Roy
  • Patent number: 5215860
    Abstract: Energy polymerizable compositions comprising at least one cyanate monomer and as curing agent an organometallic compound are disclosed. The compositions are useful in applications requiring high performance, such as high temperature performance; in composites, particularly structural composities; structural adhesives; tooling for structural composities; electronic applications such as printed wiring boards and semiconductor encapsulants; graphic arts; injection molding and prepregs; and high performance binders.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: June 1, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Fred B. McCormick, Katherine A. Brown-Wensley, Robert J. DeVoe
  • Patent number: 5216118
    Abstract: A method for preparing polyimides comprising reacting carbon monoxide, a primary diamine and a reactant selected from the group consisting of bis(o-iodoaromatic ester)s and bis(o-bromoaromatic ester)s, in the presence of solvent and catalyst, said catalyst being a compound of a metal seIected from the group consisting of platinum, palladium and nickel.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: June 1, 1993
    Assignee: Eastman Kodak Company
    Inventors: Robert J. Perry, S. Richard Turner, Richard W. Blevins
  • Patent number: 5214123
    Abstract: A method for preparing poly(imide-amide)s comprising reacting carbon monoxide, an aromatic or heteroaromatic diamine, and an aromatic or heteroaromatic di(trifluoromethane sulfonate), in the presence of solvent and a catalyst One of the aromatic reactants has a nucleus including a phthalimide ring system. The catalyst is a compound of a metal selected from the group consisting of platinum, palladium and nickel.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: May 25, 1993
    Assignee: Eastman Kodak Company
    Inventors: Robert J. Perry, S. Richard Turner, Richard W. Blevins
  • Patent number: 5212278
    Abstract: The invention relates to polyarylene ethers which contain, based on the total amount of structural elements present in the polyether resin, 5-100 mol % of a recurring structural element of the formula I ##STR1## and 0-95 mol % of a recurring structural element of the formula II ##STR2## in which X and X' independently of one another are --SO--, --SO.sub.2 -- or --CO--, one of the radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups and the remaining radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 independently of one another are hydrogen, (C.sub.1 -C.sub.4)alkyl, phenyl or phenyl which is substituted by one to three (C.sub.1 -C.sub.4)alkyl groups, and A is an aromatic radical, at least 25% of the bonds X and/or Y and/or the bridge members contained in A being --SO.sub.2 --.These industrial materials are distinguished by very good mechanical properties and good solubility.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: May 18, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Rudolf Pfaendner, Thomas Kainmuller, Kurt Hoffmann, Andreas Kramer, Friedrich Stockinger
  • Patent number: 5210175
    Abstract: A method for preparing polyamide comprising reacting carbon monoxide and the reactant pair ##STR1## wherein --Ar.sup.1 -- and --Ar.sup.2 -- are each independently selected from the group consisting of aromatic and heteroaromatic moieties having a total of ring carbons and heteroatoms of from 6 to about 30, in the presence of solvent and a catalyst. The catalyst is a compound of a metal selected from the group consisting of platinum, palladium and nickel.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: May 11, 1993
    Assignee: Eastman Kodak Company
    Inventor: Robert J. Perry
  • Patent number: 5208301
    Abstract: Sulfonic acid-substituted polyaniline compositions, ammonium salts thereof, and uses therefor are disclosed. The ammonium salts of the sulfonic acid-substituted polyaniline compositions are used as interim materials in the processing of conducting sulfonated polyaniline compositions. The ammonium salts of the sulfonic acid-substituted polyaniline compositions are also used to either reversible or irreversible NH.sub.3 filters, sensors, temperature indicators and the like.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: May 4, 1993
    Assignee: Ohio State University Research Foundation
    Inventors: Arthur J. Epstein, Jiang Yue
  • Patent number: 5194557
    Abstract: This invention provides polyorganooxothiazenes exhibiting levels of molecular weight and properties not heretofore achieved by similar polymers reported in the prior art. The sulfonimidates that are condensed to form the polymers are prepared using a novel reaction between an N-triorganosilylsulfonamide and a triorganodihalophosphorane to form the corresponding N-triorganosilylsulfonimidoyl halide that is subsequently reacted with a fluorinated alcohol or phenol to form the N-triorgano-silylsulfonimidate.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: March 16, 1993
    Assignee: Dow Corning Corporation
    Inventors: Aroop K. Roy, Gary T. Burns
  • Patent number: 5180796
    Abstract: An arylene sulfide polymer having derivatized end-groups and a process for preparing derivatized arylene sulfide polymer comprising contacting at an elevated temperature, an arylene sulfide polymer, a compound having the formula ##STR1## wherein R' is selected from the group consisting of an alkyl radical having 1 to about 17 carbon atoms, an aryl radical having 6 to about 16 carbon atoms, and combinations thereof and X is selected from the group consisting of chlorine and bromine, and a solvent which is stable in the presence of the compound and is capable of dissolving the arylene sulfide polymer.
    Type: Grant
    Filed: February 26, 1990
    Date of Patent: January 19, 1993
    Assignee: Phillips Petroleum Company
    Inventor: Dirk M. Sutherlin
  • Patent number: 5159057
    Abstract: A method for preparing aromatic polyester comprising reacting carbon monoxide, a diol, and an aromatic trifluoromethane sulfonate reactant having the general formula ##STR1## in the presence of solvent and a catalyst. Ar is selected from the group consisting of aromatic and heteroaromatic moieties having a total of ring carbons and heteroatoms of from 6 to about 30. The catalyst is a compound of a metal selected from the group consisting of platinum, palladium and nickel.
    Type: Grant
    Filed: February 25, 1992
    Date of Patent: October 27, 1992
    Assignee: Eastman Kodak Company
    Inventor: Robert J. Perry
  • Patent number: 5151471
    Abstract: Epoxy resin formulations having improved storage stability comprising epoxys selected from the group consisting of polyglcidyl ethers of polycyclic bridged hydroxy-substituted polyaromatic compounds and N,N,N',N'-tetraglycidyl-bis(4-amino-3-ethylphenyl) methane with from about 6 to about 150 pbw, per hundred parts by weight of the epoxy resin components, of a solid aromatic diamine hardener insoluble in said composition at room temperature in an amount effective to cure said epoxy resin.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: September 29, 1992
    Assignee: Amoco Corporation
    Inventors: Shahid P. Qureshi, Hugh C. Gardner
  • Patent number: 5149768
    Abstract: Hydroxy-functional poly(ether sulfonamides) prepared by polymerizing an N,N'-dialkyl or N,N'-diaryldisulfonamide with a diepoxide in the presence of a suitable catalyst exhibit high barrier properties. These are suitable for use in the manufacture of articles such as rigid containers and flexible films exhibiting high barrier to oxygen.
    Type: Grant
    Filed: June 21, 1991
    Date of Patent: September 22, 1992
    Assignee: The Dow Chemical Company
    Inventors: Jerry E. White, Anthony P. Haag, R. Garth Pews
  • Patent number: 5149755
    Abstract: A method for the preparation of poly(benzoxazole)s, poly(benzimidazoles)s, and poly(benzthiazole)s. In the presence of solvent and catalyst, reacting carbon monoxide, an aromatic halide reactant having the general formula X.sup.1 --Ar.sup.1 --Z.sup.1 and an aromatic amine reactant having the general formula Z.sup.2 --Ar.sup.2 --M.sup.1, wherein X.sup.1 and Z.sup.1 are non-ortho, Z.sup.2 and M.sup.1 are non-ortho, one of Z.sup.1 and Z.sup.2 is X.sup.2 and the other one is M.sup.2, --Ar.sup.1 -- and --Ar.sup.2 -- are each independently selected from the group consisting of aromatic and heteroaromatic moieties having a total of ring carbons and heteroatoms of from 6 to about 20, X.sup.1 and X.sup.2 are each independently selected from the group consisting of --I and --Br, and M.sup.1 and M.sup.2 are each independently selected from moieties having an --NH.sub.2 radical and, ortho to the --NH.sub.2 radical, a radical selected from the group consisting of --NH.sub.2, --OH, and --SH.
    Type: Grant
    Filed: July 5, 1991
    Date of Patent: September 22, 1992
    Assignee: Eastman Kodak Company
    Inventor: Robert J. Perry
  • Patent number: 5147968
    Abstract: A composition for absorbing electromagnetic radiation (such as microwave, infrared, visible light radiation ultraviolet radiation), wherein said electromagnetic radiation possesses a wavelength generally in the range of from about 1000 Angstroms to about 50 meters, wherein said composition comprises a polyaniline composition of the formula ##STR1## where y can be equal to or greater than zero and R' and R.sub.2 are independently selected from the group consisting of --H, --OCH.sub.3, --CH.sub.3, --F, --Cl, --Br, --I, --NR.sup.3.sub.2, --NHCOR.sub.3, --OH, --O, --SR.sup.3, --OR.sup.3, --OCOR.sup.3, --NO.sub.2, --COOH, --COOR.sup.3, --COR.sup.3, --CHO, and --CN, where R.sup.3 is a C.sub.1 to C.sub.a alkyl, aryl or aralkyl group.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: September 15, 1992
    Assignee: The Ohio State University Research Foundation
    Inventors: Arthur J. Epstein, John M. Ginder, Mitchell G. Roe, Hamid Hajiseyedjavadi
  • Patent number: 5144004
    Abstract: An arylene sulfide sulfone/sulfoxide polymer and a process for preparing same by contacting at least one dihaloaromatic sulfone, at least one dihaloaromatic sulfoxide, at least one organic amide, at least one sulfur-containing compound, and water.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: September 1, 1992
    Assignee: Phillips Petroleum Company
    Inventor: Rex L. Bobsein
  • Patent number: 5138022
    Abstract: Aliphatic polyesters of 3,4'-biphenyldicarboxylic acid and optionally 4,4'-biphenyldicarboxylic acid are prepared by contacting at least one aliphatic diol having from 2 to 12 carbon atoms with a lower alkyl diester or phenolic diester of 3,4'-biphenyldicarboxylic acid and, optionally, a lower alkyl diester or phenolic diester of 4,4'-biphenyldicarboxylic acid, in the presence of a catalyst at about 180.degree. to about 300.degree. C. These polyesters are suitable for use in making fibers, films, three dimensional molded articles, barrier containers and coatings.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: August 11, 1992
    Assignee: The Dow Chemical Company
    Inventors: Michael N. Mang, James L. Brewbaker
  • Patent number: 5137991
    Abstract: Self-prontonated sulfonic acid-substituted polyaniline compositions, processes for their preparation and uses therefor are disclosed. The sulfonated polyaniline compositions have faster electronic and optical responses to electrochemical potentials comparing to its parent polyaniline, improved environmental stability, and improved solubility than the parent polymer, polyaniline. A process for producing the sulfonated polyaniline compositions comprises reacting the polyaniline polymer with concentrated sulfuric acid. The sulfonated polyaniline compositions are useful for switching an electrochemical response between a conducting and a nonconducting state. The sulfonated polyaniline compositions are also useful for conduction of electricity, absorption of electromagnetic radiation, modulation of electromagnetic beams and modification of the electromagnetic response of sulfonated polyaniline compositions by chemical or electrochemical means.
    Type: Grant
    Filed: October 19, 1989
    Date of Patent: August 11, 1992
    Assignee: The Ohio State University Research Foundation
    Inventors: Arthur J. Epstein, Jiang Yue
  • Patent number: 5130412
    Abstract: An electrically conducting self-doped carbazole polymer of the formula: ##STR1## wherein A is a bifunctional molecule capable of bonding to a positively charged molecule at one end and is capable of bonding to a flexible spacer group Z at another end, Z is a flexible spacer group capable of bonding to an anionic group A at one end and is capable of bonding either to a nitrogen or aromatic electron withdrawing or electron donating group at another end, E is a bifunctional molecule capable of bonding to nitrogen at one end and is capable of bonding to a flexible spacer group Z at anther end, X is a positively charged counterion, and n is at least 2.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: July 14, 1992
    Assignee: Southwest Research Institute
    Inventors: Stephen T. Wellinghoff, Charles K. Baker
  • Patent number: 5130411
    Abstract: An improved process for preparing increased molecular weight polyarylene sulfides is disclosed. The process comprises at least two stages: a first polymerization stage in which a polymer of a relatively low molecular weight is prepared and a second polymerization stage in which the molecular weight is substantially increased. The increased molecular weight permits the polymer to be used in a wide range of molding and shaping applications.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: July 14, 1992
    Assignee: Tosoh Corporation
    Inventors: Shinji Tanaka, Hiroshi Inoue
  • Patent number: 5128445
    Abstract: A method is provided for recovering poly(arylene sulfide) polymers characterized by low ash and oligomer concentrations and having a larger particle size, which method comprises, during recovery, adding or maintaining a sufficient amount of a polar organic compound to the reaction mixture immediately after solidifying the poly(arylene sulfide) polymer.
    Type: Grant
    Filed: June 14, 1990
    Date of Patent: July 7, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Lacey E. Scoggins, Toshiuki Asakura, Keiji Nakagawa
  • Patent number: 5112934
    Abstract: The present invention is directed to an epoxy-containing polymeric material having nonlinear optical properties, particularly a glycidyl amine polymer, and a process for making the nonlinear optical (NLO) epoxy-containing polymeric material including poling the polymeric material under high voltage at elevated temperature for a period of time to bring about orientation of the nonlinear optical functionalities in the polymer. The polymers have enhanced thermal stability and good NLO properties.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: May 12, 1992
    Assignee: The Dow Chemical Company
    Inventors: John J. Kester, H. Craig Silvis
  • Patent number: 5104971
    Abstract: A process for the preparation of aromatic polyamides comprises reacting carbon monoxide, a diamine and an aromatic polyiodide having at least two iodine atoms covalently bonded to an aromatic ring in non-ortho positions. The process is conducted in the presence of a solvent, a catalyst and a base at a pressure greater than about 15 psia (1.05 kg/cm.sup.2).
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: April 14, 1992
    Assignee: Eastman Kodak Company
    Inventors: Robert J. Perry, S. Richard Turner, Richard W. Blevins
  • Patent number: 5093470
    Abstract: Crosslinkable compounds obtainable by reaction of water-soluble mono- or polyamines with 2,3-epoxypropyl sulphonates or 2-hydroxypropyl 1,3-bis-sulphonates or their mixtures with up to 15 mol % of an epihalogenohydrin or diyhalogenohydrin are used for imparting wet strength to paper.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: March 3, 1992
    Assignee: Bayer Aktiengesellschaft
    Inventors: Henning Bachem, Georg Schroder, Carlhans Suling, Jurgen Reiners, Janos Muszik, Dieter Arlt, Manfred Jautelat, Wolf-Dieter Schroer
  • Patent number: 5093439
    Abstract: Sulfonic acid-substituted polyaniline compositions and their derivatives are produced by reacting a polyaniline polymer with SO.sub.3 gas. The sulfonated polyaniline compositions have faster electronic and optical responses to electrochemical potentials and improved environmental stability solubility than the parent polyaniline polymer.
    Type: Grant
    Filed: May 25, 1990
    Date of Patent: March 3, 1992
    Assignee: Ohio State University Research Foundation
    Inventors: Arthur J. Epstein, Jiang Yue
  • Patent number: 5093469
    Abstract: Polyarylene sulfides are prepared by reacting a dihalogen aromatic compound with a sodium hydrosulfide in the presence of an alkali metal aminoalkanoate and a lithium halide in an organic polar solvent. This process can prevent a decomposition of the sodium hydrosulfide during dehydration and produce the polyarylene sulfides in a granular form in high yields and with high efficiency.The polyarylene sulfides obtainable by this process are high in molecular weight and degree of whiteness and low in a content of salts remaining therein. Furthermore, the polyarylene sulfides are in the granular form so that they can be handled with ease because of their readily separability and washability.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: March 3, 1992
    Assignee: Idemitsu Petrochemical Company Limited
    Inventor: Minoru Senga
  • Patent number: 5091501
    Abstract: This invention provides a process for producing 2H-1-benzopyran-2-ones (coumarins) from optionally-substituted o-halocinnamic acids or esters under polyester-forming conditions. When the coumarins contain appropriately reactive functional groups, and desired monomers are present, a colored or UV-absorbing coumarin/polyester copolymer is provided in one step.
    Type: Grant
    Filed: October 4, 1990
    Date of Patent: February 25, 1992
    Assignee: Eastman Kodak Company
    Inventors: Max A. Weaver, Samuel D. Hilbert, Wayne P. Pruett, Clarence A. Coates, Jr.
  • Patent number: 5086156
    Abstract: Epoxy resins can be cured or crosslinked with trihydrocarbyl phosphine oxide compounds having epoxy-reactive (active hydrogen) substituents either alone or in combination with amine-terminated polyarylene ethers (e.g., amine-terminated polysulfone oligomers or high polymers.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: February 4, 1992
    Assignee: Virginia Tech Intellectual Properties, Inc.
    Inventors: James E. McGrath, Attila Gungor
  • Patent number: 5084548
    Abstract: Polymers comprising fluorine-containing poly(ether sulfones) and monomers comprising aromatic fluorine-containing sulfones used in the preparation of these polymers.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: January 28, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Andrew E. Feiring, Samuel D. Arthur
  • Patent number: 5081214
    Abstract: A process for the preparation of an aromatic polyether by condensation of dihydric phenols with activated aromatic dihalo compounds or by self-condensation of polynuclear activated halophenols employs a mixture of sodium carbonate and sodium hydrogen carbonate as a condensation auxiliary.By this means, the relatively low reactivity of the sodium carbonate is enhanced and the reaction rate is significantly increased.
    Type: Grant
    Filed: August 7, 1990
    Date of Patent: January 14, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Arnold Schneller