Elemental Or Organic Sulfur Compound As Dnrm Patents (Class 524/742)
  • Patent number: 11795324
    Abstract: A polyphenylene ether bismaleimide resin, a method for manufacturing the same, and a resin composition are provided. The polyphenylene ether bismaleimide (PPE-BMI) resin is obtained by a condensation reaction with a maleic anhydride and a primary amine compound as reactants. The primary amine compound is a polyphenylene ether diamine.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: October 24, 2023
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Cheng-Chung Lee, Chen Hua Wu, Yu Shiang Peng, Wei Ting Wei, Chien Fu Lin
  • Patent number: 11594732
    Abstract: Disclosed is an electrode active material that has a large charge discharge capacity, a high initial efficiency, as well as excellent cycle characteristics and rate characteristics and is favorably used in a non-aqueous electrolyte secondary battery. An organo sulfur-based electrode active material contains sodium and potassium in a total amount of 100 ppm by mass to 1000 ppm by mass; an electrode for use in a secondary battery, the electrode containing the organo sulfur-based electrode active material as an electrode active material; and a non-aqueous electrolyte secondary battery including the electrode. Preferably, the organo sulfur-based electrode active material further contains iron in an amount of 1 ppm by mass to 20 ppm by mass. Preferably, the organo sulfur-based electrode active material is sulfur-modified polyacrylonitrile, and the amount of sulfur in the organo sulfur-based electrode active material is 25 mass % to 60 mass %.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: February 28, 2023
    Assignee: ADEKA CORPORATION
    Inventors: Hiromi Takenouchi, Tomofumi Yokomizo, Hirokatsu Shinano, Kenji Kakiage, Yuta Nohara, Yohei Aoyama
  • Publication number: 20150148481
    Abstract: Process for polymerizing fluoromonomer to form an aqueous dispersion of fluoropolymer particles including: (a) providing an aqueous medium in a polymerization reactor, (b) adding nucleating additive comprising polyalkylene oxide having a number average molecular weight of about 50 to about 2000 to the aqueous medium in an amount of about 0.1 ppm to about 50 ppm based on water in the aqueous medium, (c) exposing the nucleating additive to oxidizing agent to form a dispersion of oleophilic nucleation sites in the aqueous medium; (d) pressurizing the reactor by adding fluoromonomer, and (e) adding polymerization initiator to the aqueous medium to cause the polymerizing of the fluoromonomer to form fluoropolymer particles dispersed in the aqueous medium.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: PAUL DOUGLAS BROTHERS, Subhash Vishnu Gangal, Dipti Dilip Khasnis
  • Patent number: 9029470
    Abstract: Latex emulsions are disclosed which can be used in the formation of coating compositions that are not water sensitive, have good blush resistance and retortability. In some embodiments, the coating compositions are used to coat substrates such as cans and packaging materials for the storage of food and beverages. Coating compositions can be prepared by mixing an ethylenically unsaturated monomer component and a stabilizer comprising a strong acid, in a carrier to form a monomer emulsion, reacting the monomer emulsion with an initiator to form the latex emulsion, and reacting the latex emulsion with a neutralizer. Methods of coating substrates with the coating compositions, and substrates coated with the coating compositions are also disclosed.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: May 12, 2015
    Assignee: Akzo Nobel Coatings International B.V.
    Inventors: Jude Thomas Rademacher, Gary Charles Pompignano, Willy P Kulhanek
  • Publication number: 20140220342
    Abstract: The present invention relates to a copolymer composition comprising 5-95 pphwm of vinyl acetate and 95-5 pphwm of vinyl 3,5,5-trimethylhexanoate, wherein the corresponding 3,5,5-trimethylhexanoic acid has a content of the 3,5,5-trimethylhexanoic acid isomer of at least 88% by weight. Said copolymer is composed and synthesized so as to be useful in the formulation of binders for fibrous substrates such as woven or nonwoven products, paints, adhesives for porous or non-porous substrates, construction cementitious compositions, redispersible powders.
    Type: Application
    Filed: September 12, 2011
    Publication date: August 7, 2014
    Applicant: Oxea GmbH
    Inventors: Antonietta Schiro, Tito Zanetta, Christoph Balzarek, Olivier Borgmeier, Guido Frey, Leif Johnen, Donald Raff, Heinz Strutz
  • Publication number: 20140187714
    Abstract: The present invention provides a sealant composition for electronic device, in which the curing does not proceed when heated, which does not cause the problem of use in the mounting process of electronic device. The present invention relates to a sealant composition for electronic device comprising (a) a compound having two or more (meth)acryloyl groups and (c) a nitroxide compound and/or a thiocarbonylthio compound.
    Type: Application
    Filed: March 7, 2014
    Publication date: July 3, 2014
    Applicant: HENKEL AG & CO. KGAA
    Inventors: Yusuke Horiguchi, Kenichiro Sato, Mieko Sano
  • Publication number: 20120322941
    Abstract: The present invention provides a tetrafluoroethylene polymer aqueous dispersion obtained by carrying out a TFE polymerization in an aqueous medium in the presence of a fluorovinyl group-containing emulsifier, wherein the TFE polymer aqueous dispersion contains a particle comprising a TFE polymer dispersed in the aqueous medium, the fluorovinyl group-containing emulsifier comprises a fluorovinyl group-containing compound, and the TFE polymer aqueous dispersion has a fluorine-containing surfactant content of not higher than 1000 ppm by mass.
    Type: Application
    Filed: August 30, 2012
    Publication date: December 20, 2012
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Nobuhiko TSUDA, Yoshinori NANBA, Yasuhiko SAWADA, Tetsuo SHIMIZU
  • Publication number: 20120108692
    Abstract: Monomers and crosslinkers derived from renewable resources that can be used to produce flexible, microporous, open-celled polymeric foam materials having physical characteristics making them suitable for a variety of uses, are disclosed. Monomer compositions derived from renewable resources, and having short curing times for preparing foam materials from high internal phase emulsions are also disclosed.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Inventor: John Collins Dyer
  • Patent number: 8067513
    Abstract: The present invention relates to the use of Styrenated Phenol Ethoxylates as surfactants in emulsion polymerization. The present invention further relates to the use of both anionic and nonionic Styrenated Phenol Ethoxylates in emulsion polymerization. Latexes with small average particle and narrow particle size distributions are obtained. Prepared latexes also have low coagulum levels and exhibit excellent mechanical and chemical stability.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: November 29, 2011
    Assignee: Ethox Chemicals LLC
    Inventors: Lawrence C. Davis, Edward R. Godwin, Charles V. Hinton, James T. Tanner
  • Patent number: 8013084
    Abstract: A manufacturing method of an optical material, the method including: blending an inorganic compound (a) containing at least one of a sulfur atom and a selenium atom and a compound (b) represented by a following formula (1) in a tank, the compound (a) and the compound (b) being blended at a ratio of 1 mass % or more and 50 mass % or less of the compound (a) and 50 mass % or more and 99 mass % or less of the compound (b) relative to a total mass of a mixture of the compound (a) and the compound (b); mixing a compound (c) containing at least one thiol (SH) group; preliminarily polymerizing the compounds; cooling the compounds; and deaerating the compounds, in which a viscosity of the composition stored in the tank is controlled during at least one of the preliminarily polymerizing, the cooling and the deaerating (m represents an integer of 0 to 4, and n represents an integer of 0 to 2).
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: September 6, 2011
    Assignee: Seiko Epson Corporation
    Inventors: Masaki Ihara, Toru Saito, Akinori Yamamoto
  • Patent number: 8008378
    Abstract: The present invention provides a taste-masked composition containing an active compound. The composition is taste-masked by employing a loaded polymeric matrix which is produced by incorporating or complexing the active compound on a polymeric matrix having ionic functional groups and removing unbound active compounds from the polymeric matrix.
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: August 30, 2011
    Assignee: Novartis AG
    Inventors: Robert D. Hargens, Yimin Jia, Greg Slominski, Suresh Vayalakkada
  • Patent number: 7977426
    Abstract: A compound of Formula (1) Rf—O—(CXX?)m—(CY2)nSO3M??(1) wherein Rf is a C1 to C4 linear or branched perfluoroalkyl group, X and X? are each independently H or F, provided that at least one of X or X? is F, each Y is independently H or F, m is an integer from 1 to 4, n is an integer from 1 to 2, and M is H, NH4, Li, Na or K, provided that when CXX? is CHF or CFH, then n is 2.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: July 12, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Sheng Peng, Ming-Hong Hung, Christopher P. Junk, Phan Linh Tang
  • Publication number: 20110144271
    Abstract: The present invention aims to provide a radiation-curing liquid resin composition for optical tridimensional modeling having good storage stability. The suitable radiation-curing liquid resin composition for optical tridimensional modeling of the present invention includes a compound represented by the below general formula (1), a compound having phenolic hydroxyl group, a cationic polymerizable compound, a radical polymerization initiator, a radical polymerizable compound, one or more sulfur compound selected from the group consisting of 2-mercaptobenzothiazole, 2-(4-morpholinodithiobenzothiazole, diisopropylxantogendisulfide and diphenyldisulfide, a polyether polyol compound.
    Type: Application
    Filed: June 16, 2006
    Publication date: June 16, 2011
    Applicant: JSR CORPORATION
    Inventors: Katsuyuki Takase, Takayoshi Tanabe, Noriyasu Shinohara
  • Patent number: 7662324
    Abstract: In an exemplary embodiment, the present method includes the stops of providing a polymer resin to be processed: blending particulate boron nitride (BN) and a fluorine-containing polymer with said polymer resin to provide a resin blend: heating said resin blend to obtain a desired flowability value: and processing said resin blend into a desired shape.
    Type: Grant
    Filed: April 30, 2002
    Date of Patent: February 16, 2010
    Assignee: Saint-Gobain Ceramics & Plastics, Inc
    Inventors: Eugene A. Pruss, Thomas M. Clere, Stuart K. Randa
  • Publication number: 20080306210
    Abstract: The invention relates to new compositions having good binder properties, wetting properties and dispersing properties not only for virtually foam-free aqueous pigment preparations but also for solvent-borne and solvent-free pigment preparations with very good heat stability and weathering stability.
    Type: Application
    Filed: November 6, 2006
    Publication date: December 11, 2008
    Inventors: Patrick Glockner, Evelyn Albrecht, Andreas Wenning
  • Patent number: 7405256
    Abstract: There is provided a run flat tire having a side reinforcing layer in which low exothermic property and high hardness are compatible and durability is improved. A rubber composition containing 10 to 100 parts by weight of carbon black with a nitrogen adsorption specific area of 30 to 100 m2/g and a dibutyl phthalate oil absorption amount of 50 ml/100 g or more and 2 parts by weight or more of sulfur or a sulfur compound, based on 100 parts by weight of a rubber component containing 10 to 50% by weight of a conjugated diolefin polymer or a copolymer of a diolefin and an aromatic vinyl compound having a primary amino group and an alkoxysilyl group and having a glass transition point of ?30° C. or less in which a bifunctional or more monomer is copolymerized in a polymer chain and/or at least a portion of a (co)polymer chain is coupled with a bifunctional or more coupling agent, and a run flat tire having a side reinforcing layer comprising the rubber composition.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: July 29, 2008
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Kazuo Hochi
  • Patent number: 7169845
    Abstract: In the present invention, an episulfide compound having, in one molecule, at least one epithio structure represented by the following Formula 2: wherein R5 is C1–C10 hydrocarbylene or single bond, R6, R7 and R8 are each independently C1–C10 hydrocarbyl or hydrogen, Y is O, S, Se or Te, p is an integer from 1 to 5 and q is an integer from 0 to 5, is polymerized in the presence of a halide of a 13–16 group element of the long periodic table and/or a polymerization regulator represented by the following Formula 1: wherein R1, R2 and R3 are each C1–C10 hydocarbyl or hydrogen, R4 is C1–C10 hydrocarbylene or single bond, X is F, Cl, Br, I, As, SH, OH, C1–C10 alkoxyl, C1–C10 alkylthio, or C1–C10 mercaptoalkythio, and m is an integer from 1 to 5, to produce a cured resin suitable as an optical material. By using the polymerization regulator, the polymerization rate of the episulfide compound can be suitably regulated to obtain a cured resin with less defect.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: January 30, 2007
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Masaki Tamura, Takahiro Matsui, Masanori Shimuta, Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi, Hiroyuki Okada
  • Patent number: 7164046
    Abstract: The present invention relates to a process of manufacture of polytrimethylene ether glycol, in which one or more inorganic compounds selected from an inorganic salt and an inorganic base is utilized during certain purification steps to reduce phase separation time.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: January 16, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hari Babu Sunkara, Howard C. Ng, Wei Zheng, Zhihong Wu
  • Patent number: 7161045
    Abstract: A process of manufacture of polytrimethylene ether glycol comprising: (a) polycondensing reactant comprising diol selected from the group consisting of 1,3-propanediol, 1,3-propanediol dimer and 1,3-propanediol trimer or mixtures thereof in the presence of acid polycondensation catalyst to form polytrimethylene ether glycol; (b) adding water to the polytrimethylene ether glycol and hydrolyzing the acid esters formed during the polycondensation to form a hydrolyzed mixture containing the polytrimethylene ether glycol and the hydrolyzed acid esters; (c) adding organic solvent that is miscible with water to the hydrolyzed mixture to form an aqueous-organic mixture comprising (i) organic phase containing polytrimethylene ether glycol and residual acid polycondensation catalyst from the polycondensing and (ii) water phase; (d) separating the water phase and the organic phase; (e) adding base to the separated organic phase to neutralize the residual acid polycondensation catalyst by forming salts of the residual ac
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: January 9, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hari Babu Sunkara, Howard C. Ng, Wei Zheng
  • Patent number: 7157607
    Abstract: A process of manufacture of polytrimethylene ether glycol comprising: (a) polycondensing reactant comprising diol selected from the group consisting of 1,3-propanediol, 1,3-propanediol dimer and 1,3-propanediol trimer or mixtures thereof in the presence of acid polycondensation catalyst to form polytrimethylene ether glycol; (b) adding water to the polytrimethylene ether glycol to form an aqueous mixture; (c) heating the aqueous mixture to hydrolyze acid esters formed during the acid catalyzed polycondensation; (d) adding to the hydrolyzed aqueous mixture organic solvent that is miscible with polytrimethylene ether glycol to form (i) organic phase containing the polytrimethylene ether glycol and residual acid polycondensation catalyst from the polycondensing and (ii) aqueous phase; (e) separating the aqueous phase and the organic phase; (f) adding base to the separated organic phase to neutralize the residual acid polycondensation catalyst by forming salts of the residual acid polycondensation catalyst; (g
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: January 2, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Hari Babu Sunkara, Howard C. Ng, Wei Zheng
  • Patent number: 7101953
    Abstract: A process for producing plastic lenses, having higher refractive index and Abbe's number without remarkably deteriorating basic physical properties such as mechanical strength, impact resistance and transparency, and plastic lenses. The process comprises mixing 1) a prepolymer with 2) a mixture comprising sulfur in an epithio group-containing compound and 3) a catalyst.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: September 5, 2006
    Assignee: HOYA Corporation
    Inventor: Masahisa Kosaka
  • Patent number: 7087704
    Abstract: It is an object of the present invention to manufacture high quality thermotropic liquid-crystalline polymer generating no low boiling gas and inducing no discoloration resulted from thermal degradation at high yield. To manufacture a liquid-crystalline polymer having 50 mol % or larger ratio of constitutive unit introduced from 4-hydroxybenzoic acid, the reaction is conducted under the presence of an acylating agent and of a catalyst quantity of aromatic sulfonic acid.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: August 8, 2006
    Assignee: Polyplastics Co., Ltd.
    Inventors: Keiichi Kanaka, Shinya Yamada
  • Patent number: 7001974
    Abstract: The present invention provides a process for producing plastic lenses, which are transparent, less colored, are not remarkably deteriorated in basic physical properties such as mechanical strength and impact resistance, and have higher refractive index and Abbe's number, and plastic lenses.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: February 21, 2006
    Assignee: HOYA Corporation
    Inventor: Masahisa Kosaka
  • Patent number: 6802939
    Abstract: A method of sizing paper by applying a composition comprising an aqueous dispersion of polymeric particles of particle size up to 1 micron, preferably 80-200 nm, wherein the polymeric particles comprise a water insoluble polymer matrix, preferably formed from styrene and 2-ethylhexyl acrylate, characterized in that an oligomer formed from a monomer blend comprising, (a) (meth)acrylamide, and (b) organic mercaptan or an organic sulphone, preferably dodecyl mercaptan or dodecyl sulphone is located at the surface of the particles. Compositions where the oligomer further comprises an ethylenically unsaturated monomer comprising either a tertiary amine group or a quaternary ammonium group, preferably dimethylaminoethylmethacrylate are novel. Advantages of the composition when applied to the surface of paper, include improved water resistance, brightness and printability properties of the treated paper.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: October 12, 2004
    Assignee: Ciba Specialty Chemicals Water Treatments Limited
    Inventors: Simon Donnelly, John Robert Stockwell, John Plonka
  • Patent number: 6723764
    Abstract: A process for preparing an enlarged latex, which comprises (1) causing (a) an anionic surfactant and (b) at least one surfactant selected from the group consisting of a cationic surfactant and an amphoteric surfactant to exist in a latex, (2) adding, as an aggregating and enlarging agent, at least one selected from the group consisting of (i) an inorganic acid, (ii) an organic acid, (iii) a substance which forms an acid in water, (iv) a combination of at least two substances which are reacted with each other to form an acid, and (v) a substance which forms an acid by exposure to active rays to the latex in the presence of these surfactants, and (3) causing the acid derived from the aggregating and enlarging agent to act on the latex, thereby enlarging the particle diameter of the latex, an enlarged latex obtained by the preparation process, a graft copolymer obtained by polymerizing a polymerizable monomer with the enlarged latex, and a resin composition comprising the graft copolymer and a thermoplastic resi
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: April 20, 2004
    Assignee: Rohm and Haas Company
    Inventor: Hiroshi Sakabe
  • Patent number: 6653399
    Abstract: A water absorbent material, comprising, as a main component, a water absorbent resin which has a structure in which a anhydropolyamino acid having an ethylenically unsaturated double bond is grafted with polysaccharides, wherein at least a portion of the anhydropolyamino acid is hydrolyzed and crosslinked, has high water absorbency and high biodegradability even if the anhydropolyamino acid has a low molecular weight.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: November 25, 2003
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Hisakazu Tanaka, Shigeki Ideguchi, Yoshiki Hasegawa
  • Patent number: 6528578
    Abstract: A golf ball comprising a core and a cover layer wherein the cover is formed of a polyurethane composition comprising a prepolymer comprising a saturated diisocyanate and a curing agent, and an optical brightener.
    Type: Grant
    Filed: September 19, 2001
    Date of Patent: March 4, 2003
    Assignee: Acushnet Company
    Inventor: Shenshen Wu
  • Patent number: 6447553
    Abstract: A radiation curable monomer and a dystuff are mixed in a curable formulation and fed into a hot evaporator under vacuum. The blend is flash evaporated through a nozzle and recondensed onto a moving substrate in contact with a temperature-controlled rotating drum. The condensed film is then crosslinked with a high-energy ultraviolet or electron-beam radiation source to effect cross-linking of the monomer. The resulting product consists of a crosslinked polymer matrix incorporating dyestuff molecules within its structure, which dramatically enhances the durability, solvent resistance, heat stability and migration fastness of the product. These properties can be further improved by chemically bonding the dyestuff molecules with the crosslinked polymer network, which can be accomplished by judiciously functionalizing the dyestuff with appropriate functional groups designed to polymerize or to react with the curable monomer.
    Type: Grant
    Filed: October 24, 2000
    Date of Patent: September 10, 2002
    Assignee: Sigma Technologies International, Inc.
    Inventors: Michael G. Mikhael, Angelo Yializis
  • Patent number: 6444775
    Abstract: The present invention has its object to provide a curable composition showing a controlled initial curing rate and, hence, offering good workability by introducing a methyl group into the neighborhood of the reactive silicon group within an oligomer to indirectly lower the reactivity of the reactive silicon group within the oligomer.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: September 3, 2002
    Assignee: Kaneka Corporation
    Inventors: Hideharu Jyono, Hidetoshi Odaka, Hiroshi Ito, Hiroshi Iwakiri
  • Patent number: 6437072
    Abstract: The present invention has its object to provide a curable composition having good storage stability even when it contains a hydrolyzable silicon compound and/or an amino group-containing alkoxysilane or amino-substituted alkoxysilane derivative compound.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: August 20, 2002
    Assignee: Kaneka Corporation
    Inventors: Hideharu Jyono, Hidetoshi Odaka, Hiroshi Ito, Hiroshi Iwakiri
  • Patent number: 6433060
    Abstract: The present invention relates to a process for seeded microsuspension polymerization of vinyl chloride in aqueous medium under the action of at least one organosoluble initiator, at least one reducing agent and at least one water-soluble metal salt in the presence of at least one fatty acid alkali metal or ammonium salt. It also relates to the polymers obtained in this way which are suitable for giving plastisols having specific properties.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: August 13, 2002
    Assignee: Atofina
    Inventors: Christian Bonardi, Bernard Bonnaud, André Chippaux, Richard Peres
  • Patent number: 6365676
    Abstract: The invention concerns a process for the reaction of a perfluoroalkyl iodide of the formula CF3(CF2)h—I, where h is an integer from 4 to 18, with a compound having a terminal olefinic group, which comprises conducting said reaction in an aqueous medium containing 5 to 40% by weight of a water-soluble solvent and in the presence of from 0.02 to 0.5 equivalents of dithionite ion, based on the perfluoroalkyl iodide, at a temperature of from 0 to 40° C. and at a pH greater than 7.0.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: April 2, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: John Jennings, Ted Deisenroth, Marlon Haniff
  • Patent number: 6359109
    Abstract: A method of achieving a novel superior dispersion of insoluble sulfur comprises mixing polysulfur while it is in the rubbery state with a diluent, such as rubber, to obtain a novel uniform dispersion of the sulfur in the diluent.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: March 19, 2002
    Assignees: Saynad Corporation, The Brands Family Illinois Limited
    Inventor: George B. Brands
  • Patent number: 6348516
    Abstract: Process for using microwave irradiation to prepare solutions of polymers functionalized with acid groups The invention relates to a process for preparing aqueous, hydrous and anhydrous solutions of polymers functionalized with acid groups, which comprises using microwave radiation to supply the heat required to prepare the solution. The solutions are suitable as a starting material for producing gas diffusion electrodes, fuel cells and polymer-electrolyte-stabilized platinum nanoparticles.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: February 19, 2002
    Assignee: Celanese Ventures GmbH
    Inventors: Thomas Soczka-Guth, Helmut Witteler, Gregor Deckers, Georg Frank, Kilian Brehl, Jürgen Lenze, Harald Bönsel, Rüdiger Knauf
  • Patent number: 6346324
    Abstract: Disclosed is a cis-bridged metal complex of the formula (I) where R5 is an electron-withdrawing radical, and catalyst systems based on these complexes for copolymerizing carbon monoxide and olefinically unsaturated compounds.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: February 12, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Queisser, Michael Slany, Ansgar Schäfer, Michael Schulz
  • Patent number: 6319978
    Abstract: The present invention is directed to improved vinyl acetate ethylene pressure sensitive adhesive emulsion polymers. The improvement in the aqueous based, emulsion polymerized pressure sensitive adhesives resides in: a high ethylene content copolymer having a Tg of from −25 to −70° C.; a tensile storage modulus measured at one hertz and at a temperature of −20° C. embraced by the points on a plot of storage modulus and temperature of from 1 times 106 and the points 4 times 109 dynes/cm2 and less that 1 times 107 dynes/cm2 measured at 50° C.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: November 20, 2001
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Christian Leonard Daniels, Chung-Ling Mao, Richard Henry Bott, Menas Spyros Vratsanos
  • Patent number: 6310132
    Abstract: This invention relates to novel aqueous emulsion polymers obtained by free-radical initiated addition polymerization of at least one monomer in the presence of degraded starch and at least one polymeric emulsifier from the series of sulfo-containing maleic anhydride copolymers and/or sulfo-containing oligourethanes with a branched molecular structure. The invention further relates the use of such emulsion polymers as surface sizing agents for paper and paperlike materials.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: October 30, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Günter Sackmann, Eckhard Wenz, Joachim König, Bernhard Jansen, Thomas Roick, Bernd Thiele, Johan Kijlstra
  • Publication number: 20010003765
    Abstract: Acrylic emulsion PSA polymers which when cast as a film resist water whitening by hot or ambient temperature water are provided, and are formed by copolymerizing a monomer mixture comprising at least one alkyl acrylate ester of an alcohol containing at least four carbon atoms, at least one polar comonomer and at least one partially water soluble comonomer present in an amount of at least about 7% by weight of the monomers. Polymerization is carried out in the presence of at least one nonionic surfactant containing at least about 8 moles of ethylene oxide per mole nonionic surfactant and at least one anionic surfactant containing up to about 10 moles ethylene oxide per mole anionic surfactant. There is added to the product of polymerization at least one base to produce an emulsion having a pH greater than 7 and containing particles having a mean “volume-average” particle diameter of up to about 210 nm as determined by laser light scattering.
    Type: Application
    Filed: March 28, 1997
    Publication date: June 14, 2001
    Applicant: Prakash Mallya
    Inventors: PRAKASH MALLYA, XING-YA LI, COLIN C. SMITH, GEORGE DILTS, KREGG D. ALBRECHT, JOSEPH T. TENHAGEN, ROBERT D. PETRASKO
  • Patent number: 6191247
    Abstract: A polysiloxane composition comprising (A) a polysiloxane having a group represented by the formula (I): ≡Si—OR  (I) wherein, R is a C1 to C18 substituted or unsubstituted monovalent hydrocarbon group or ether bond containing an organic group; and (B) at least 1 ppm of (a) a compound having an N, P, S, Sn, or As component or (b) an acetylene alcohol and a rubber composition containing the same. Specific polysiloxanes (A) contain both formula (I): ≡Si—OR as well as Si—H.
    Type: Grant
    Filed: April 4, 1997
    Date of Patent: February 20, 2001
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Kazunori Ishikawa, Fumito Yatsuyanagi, Tetsuji Kawazura
  • Patent number: 6143801
    Abstract: A method of forming an esterification product Comprises providing (1) a material selected from the group consisting of ester monomers, ester oligomers, ester polymers, and mixtures thereof, and (2) a catalyst selected from the group consisting of: ##STR1## and mixtures thereof. wherein D is selected from the group consisting of carbon and silicon; Q is selected from the group consisting of O, S, and NR; M is selected from the group consisting of sodium, lithium, potassium, rubidium, and cesium; R, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R', R", and R'" are each independently selected from the group consisting of H, O, halogen, Si, N, S, P, C.sub.1 to C.sub.20 linear or branched alkyl, C.sub.3 to C.sub.10 cycloalkyl, and aromatic; and reacting the material in the presence of the catalyst to form an esterification product.
    Type: Grant
    Filed: December 18, 1997
    Date of Patent: November 7, 2000
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Michel R. Gagne', Michael R. Korn
  • Patent number: 6133372
    Abstract: Aqueous polymer dispersions are produced by polymerizing monoethylenically unsaturated monomers bearing acid groups in an acid, partially or totally neutralized form, optionally with other monomers that can be copolymnerized therewith in the presence of hydrophilized vegetable, animal and/or synthetic fats or oils. Also disclosed is a process for preparing the same, their use for preparing oil-in-water emulsions by admixture of another oil phase composed of vegetable, animal or synthetic oils and/of fats and/or non-self-emulsifying silicones, and their use in the field of wet currying of leather or pelts.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: October 17, 2000
    Assignee: Stockhausen GmbH & Co. KG
    Inventors: Helmut Lohmann, Thomas Muller, Waldemar Inger, Stephan Ramlow
  • Patent number: 6133412
    Abstract: The present invention provides a process for generating mixed acetal polymers by reacting a hydroxyl containing polymer or monomer with vinyl ether and alcohol in the presence of an acid catalyst. The process of this invention provides a new class of polymers based on mixed acetals which are prepared in-situ with one reaction. The mixed acetal polymers are inexpensive to synthesize and readily reproducible. The resulting mixed acetal polymer is blended with a photoacid generator and dissolved in a solvent to produce a chemically amplified resist composition. A process for forming a pattern comprises the steps of providing the chemically amplified resist composition, coating a substrate with the resist composition, imagewise exposing the resist coated substrate to actinic radiation, and forming a resist image by developing the resist coated substrate.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: October 17, 2000
    Assignee: Arch Chemicals, Inc.
    Inventors: Sanjay Malik, Andrew J. Blakeney, Lawrence Ferreira, Joseph J. Sizensky, Brian E. Maxwell
  • Patent number: 6103867
    Abstract: The catalyst systems comprise as active constituentsa) a metal complex of the formula (I) ##STR1## b) one or more Lewis or protic acids or a mixture of Lewis and protic acids.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: August 15, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Slany, Arthur Hohn
  • Patent number: 6046271
    Abstract: An aqueous microemulsion polymerization procedure is described in which very small colloidal melt-processible fluoropolymer particles are produced from at least one monomer and optionally TFE. The polymerization procedure involves initiating polymerization by adding a free-radical initiator to a microemulsion of at least one liquid organic compound and at least one free-radical polymerizable monomer to the microemulsion.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: April 4, 2000
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Huey Shen Wu, Jack Hegenbarth, Xin Kang Chen, Jian Guo Chen
  • Patent number: 6037443
    Abstract: Linear, thermoplastic, elastomneric copolymers of carbon monoxide and olefinically unsaturated compounds have an alternating sequence of repeating units and an average molecular weight Mw of the copolymers of from 80,000 to 1,200,000, binary, linear, alternating carbon monoxide/ethylene copolymers being excluded.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: March 14, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Hans-Joachim Muller, Hans Christoph Horn, Roland Spahl, Bernhard Rieger, Adnan S. Abu-Surrah
  • Patent number: 6037399
    Abstract: An aqueous microemulsion polymerization procedure is described in which very small colloidal melt-processible fluoropolymer particles are produced from at least one gaseous monomer and optionally TFE. The polymerization procedure involves forming a microemulsion of at least one liquid organic compound; adding at least one gaseous free-radical polymerizable monomer to the microemulsion; and initiating polymerization by adding a free-radical initiator to the mixture.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: March 14, 2000
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Huey Shen Wu, Jack Hegenbarth, Chen Xin-Kang, Chen Jian-Guo
  • Patent number: 6022930
    Abstract: This invention relates to the process for the preparation of macromonomers with more than one polycondensable functional groups with equal reactvity, which comprises reacting a carboxyl or hydroxyl terminated prepolymers, with an organic compound containing two or more isocynnate reactive functional groups, in the presence of a dehydrating agent and a non-reactive solvent at ambient temperatures, separating the product from the reaction mixture by conventional means.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: February 8, 2000
    Assignee: Council of Scientific & Industrial Research
    Inventors: Lalgudi Srinivasan Ramanathan, Swaminathan Sivaram
  • Patent number: 5977249
    Abstract: The present invention relates to compositions which crosslink to give elastomers, comprising;(A) a polyorganosiloxane (I) with at least two alkenyl groups per molecule and a metallic catalyst (IV) and(B) a polyorganosiloxane (II) with at least two silicon-bonded hydrogen atoms and an organic sulfur compound (III).
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: November 2, 1999
    Assignee: Wacker-Chemie GmbH
    Inventors: Ingomar Kovar, Johann Kammerer, Klaus-Michael Matejcek, Erhard Bosch, Walter Strassberger
  • Patent number: 5959071
    Abstract: A polythioether has the formulaR.sup.1 --?--R.sup.2 --S--CH(CH.sub.3)--S--!.sub.n --R.sup.2 --R.sup.1whereinR.sup.1 denotes a thiol group, a hydroxyl group, an unsubstituted amine group, a monoalkyl-substituted amine group, a monovalent radical substituted with at least one hydroxyl group, unsubstituted amine group or monoalkyl-substituted amine group, or a group that is non-reactive in the presence of an acid catalyst,R.sup.2 denotes a divalent radical, andn is an integer from 1 to 60.The polythioether is a liquid at room temperature and pressure.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: September 28, 1999
    Assignee: Courtaulds Aerospace, Inc.
    Inventors: Suzanna Elaine DeMoss, Jonathan Doherty Zook
  • Patent number: 5945478
    Abstract: Extrusion rheology of thermoplastic polymer as manifested by surface smoothness is improved by incorporating foam cell nucleating agents into the polymer and extruding the polymer under laminar flow to form unfoamed extrudate.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: August 31, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Marlin Dwight Buckmaster, Stuart Karl Randa