Specified Material Contains A Phosphorus Atom Patents (Class 525/255)
  • Patent number: 10174190
    Abstract: There are provided a method for producing particles by suspension polymerization which ensures an excellent dispersion stability of the monomer and a simpler washing step, composite particles obtainable by this production method, and use of the composite particles. The method for producing composite particles includes a polymerization step of subjecting a monomer mixture which contains a polymerizable vinyl monomer to aqueous suspension polymerization in a presence of small polymer particles having a volume-average particle size of 20 to 500 nm, with a water-soluble cellulose compound adsorbing on surfaces of the small polymer particles, and thereby obtaining composite particles which contain the small polymer particles and large polymer particles greater than the small polymer particles.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: January 8, 2019
    Assignee: SEKISUI PLASTICS CO., LTD.
    Inventors: Mayumi Ando, Toshiki Takenaka, Akiyoshi Kusaka, Takashi Goto
  • Patent number: 9775928
    Abstract: The present disclosure provides filaments and/or surgical sutures which include an inner core, an outer sheath and a plurality of barbs on a surface thereof. The filaments and/or surgical sutures further include at least one adhesive precursor material which transitions from a non-adherent material to an adhesive material to attach a portion of the filament and/or suture to the surrounding area, such as tissue and/or other portions of the filament.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: October 3, 2017
    Assignee: Covidien LP
    Inventors: Roland Ostapoff, Timothy Sargeant
  • Patent number: 8754176
    Abstract: The present invention provides a low-molecular weight polytetrafluoroethylene powder that, when used as an additive in a coating material, etc., can form a coating with excellent texture and gliding properties, while also improving dispersibility and viscosity; and a production process therefor. The present invention is a process for producing a low-molecular weight polytetrafluoroethylene powder, the process comprising: an emulsion polymerization step of polymerizing at least tetrafluoroethylene in the presence of a polymerization initiator and an aqueous medium to produce emulsified particles thereof; an agglomeration step of agglomerating the emulsified particles to form an agglomerated powder thereof; and a suspension polymerization step of polymerizing at least tetrafluoroethylene in the presence of the agglomerated powder, a polymerization initiator, and an aqueous medium.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: June 17, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Taku Yamanaka, Masayuki Tsuji, Shunji Kasai, Yasuhiko Sawada
  • Patent number: 8633273
    Abstract: Polyamide-reinforced polyacrylate polymer compositions comprising a continuous polyacrylate polymer phase and a discontinuous polyamide phase are produced by a melt mixing process. When crosslinked with peroxide curatives the polyamide-reinforced polyacrylate polymer compositions exhibit enhanced resistance to heat aging compared to carbon black-reinforced polyacrylate polymer compositions.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: January 21, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventor: Steven R Oriani
  • Publication number: 20130230733
    Abstract: A process for producing resin particles includes a step in which a polymerizable mixture including a polymerizable monomer including at least one of a styrene-based monomer and a (meth)acrylic-based monomer, and a polymerization initiator is absorbed into seed particles in an aqueous medium, without using a dispersant, in the presence of an anionic surfactant not having a polyoxyethylene chain but having an alkyl group; and a step in which the polymerizable monomer is polymerized in an aqueous medium, without using a dispersant, in the presence of an anionic surfactant having a polyoxyethylene chain to thereby obtain resin particles. The resin particles include a resin derived from a polymerizable monomer including at least one of a styrene-based monomer and a (meth)acrylic-based monomer. The proportion by number of particles having a particle diameter in the range of from 80 to 120% of the volume-average particle diameter is 85% or more.
    Type: Application
    Filed: September 28, 2011
    Publication date: September 5, 2013
    Applicant: SEKISUI PLASTICS CO., LTD.
    Inventors: Masaaki Nakamura, Ryosuke Harada, Koichiro Okamoto
  • Patent number: 8476372
    Abstract: There is provided a polyester fiber which has few defects such as voids due to catalyst particles, and low variation in physical properties and minimal fluff generation. The polyester fiber of the invention comprises laminar nanoparticles composed of a divalent metal and a phosphorus compound and having side lengths of 5-100 nm and an interlayer spacing of 1-5 nm. There are also provided a tire cord, tire, belt-reinforcing fiber material and belt, comprising the polyester fiber.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: July 2, 2013
    Assignee: Teijin Fibers Limited
    Inventors: Shintaro Shimada, Junichi Togasaki, Fuyuki Terasaka, Seiji Ito
  • Patent number: 8415433
    Abstract: A process for producing polymer microparticles by suspension polymerization of a vinyl-based monomer in which, when polymer microparticles are produced by suspension polymerization of a vinyl-based monomer, a macromonomer having a radically polymerizable unsaturated group at a terminus of a vinyl-based monomer-derived polymer is used as a dispersion stabilizer.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: April 9, 2013
    Assignee: Toagosei Co., Ltd.
    Inventors: Hideo Matsuzaki, Akihiro Gotou, Tomotaka Mizuno, Michihiro Kaai
  • Publication number: 20120190795
    Abstract: Provided is a low-cost, highly active, environmentally friendly living radical polymerization catalyst which does not require a radical initiator. An organic compound having an oxidation-reduction capability is used as a catalyst. Even if a radical initiator is not used, a monomer can be subjected to a radical polymerization to obtain a polymer having narrow molecular weight distribution. The cost of the living radical polymerization can be remarkably reduced. It is made possible to prevent adverse effects of using a radical initiator. The present invention is significantly more environmentally friendly and economically excellent than conventional living radical polymerization methods, due to advantages of the catalyst such as low toxicity of the catalyst, low amount of the catalyst necessary, high solubility of the catalyst, mild reaction conditions, and no coloration/no odor (which do not require a post-treatment for a molded article), etc.
    Type: Application
    Filed: May 10, 2010
    Publication date: July 26, 2012
    Inventors: Atsushi Goto, Yoshinobu Tsujii, Takeshi Fukuda
  • Patent number: 8227139
    Abstract: An electrolyte material for a polymer electrolyte fuel cell, which is made of a copolymer comprising repeating units based on CF2?CFCF2OCF2CF2SO3H and repeating units based on tetrafluoroethylene and which has an ion exchange capacity of from 0.9 to 1.5 (meq/g dry resin). This electrolyte material has ion conductivity and durability equal to conventional electrolyte material, is easy to synthesize, has a softening point higher than electrolyte material heretofore widely used for application to fuel cells and is suitable for operation of a polymer electrolyte fuel cell at a temperature higher than the conventional material.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: July 24, 2012
    Assignee: Asahi Glass Company, Limited
    Inventor: Atsushi Watakabe
  • Publication number: 20110287992
    Abstract: The composition and preparation of multiple graft low molecular weight polymers useful as dispersants are described. The dispersants described are suitable for controlling sludge and varnish as well as soot. The product is useful as a lubricant additive and a fuel additive.
    Type: Application
    Filed: November 16, 2010
    Publication date: November 24, 2011
    Applicant: Castrol Limited
    Inventors: Irwin L. Goldblatt, Richard P. Sauer, Shean-jer Chen
  • Patent number: 7977431
    Abstract: The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: July 12, 2011
    Assignee: LANXESS Deutschland GmbH
    Inventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Stefan Glander
  • Patent number: 7932323
    Abstract: Disclosed is an adhesive composition. The adhesive composition comprises a polyolefin, a maleated polyolefin, a Bronsted acid, and an antioxidant. The adhesive composition has improved oxidative stability compared with those which do not contain Bronsted acids.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: April 26, 2011
    Assignee: Equistar Chemicals, LP
    Inventors: Maged G. Botros, Robert L. Sherman, Jr., Charles S. Holland
  • Patent number: 7825193
    Abstract: The present invention relates to dithiocarbamic esters, their preparation and their use for regulating the degree of polymerization during the polymerization of monomers, such as during the polymerization of chloroprene to give polychloroprene, and during the polymerization of 2,3-dichlorobutadiene to give poly-2,3-dichlorobutadiene, and during the copolymerization of chloroprene with 2,3-dichlorobutadiene. The present invention further relates to polymers which are obtainable via the polymerization of monomers in the presence of the dithiocarbamic esters of the invention. The present invention also relates to polymers which contain end groups derived from the dithiocarbamic esters of the present invention.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: November 2, 2010
    Assignee: LANXESS Deutschland GmbH
    Inventors: Dirk Achten, Michael Klimpel, Emilie Barriau, Lothar Reif, Renke Mottweiler, Heinrich Berg, Zsolt Szentivanyi, Ste{acute over (f)}an Glander
  • Patent number: 7638576
    Abstract: According to the present invention, aqueous multi-stage polymer dispersions comprising an acid-functional first polymer and an epoxy-functional second polymer, wherein 90 mole % or more of the said epoxy groups, based on the moles of epoxy groups in the monomer mixture used to form the second polymer, are retained in the aqueous dispersion after said dispersion is stored in a sealed container for 10 days at 60° C. Further, methods of making the aqueous multistage polymer dispersion comprise polymerizing the monomers used to make the second polymer in the presence of an aqueous dispersion of the first polymer. Preferably, the second polymer is formed in the presence of 0.3 wt. % or less, based on the total weight of the first polymer and the ingredients to form the second polymer, of one or more strong acid surfactant, and 3) 0.1 wt.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: December 29, 2009
    Assignee: Rohm and Haas Company
    Inventors: Wayne Devonport, Ralph Craig Even
  • Patent number: 7635740
    Abstract: The present invention relates to a process for radical emulsion, miniemulsion or microemulsion polymerization employing at least one water-soluble alkoxyamine. This process makes it possible to prepare multiblock (co)polymers, in particular diblock and triblock (co)polymers.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: December 22, 2009
    Assignee: Arkema France
    Inventors: Bernadette Charleux, Olivier Guerret, Stéphanie Magnet, Julien Nicolas
  • Patent number: 7416559
    Abstract: Pharmacologically active, easy-to-deploy, biomechanically compatible, inflatable endovascular, drug-eluting stent are formed of a primary expandable polymeric or metallic construct, intimately mantled with a biomechanically compatible, polymeric microporous, microfibrous, compliant, stretchable fabric formed by direct electrospinning onto the outside surface of the primary construct using at least one polymer solution containing at least one active compound, selected from those expected to control key biological events leading to in-stent restenosis.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: August 26, 2008
    Assignee: Poly-Med, Inc.
    Inventor: Shalaby W. Shalaby
  • Patent number: 7358308
    Abstract: A golf ball comprising a core, an outer cover layer, and, optionally, an intermediate layer disposed between the core and the outer cover layer is presently disclosed.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: April 15, 2008
    Assignee: Acushnet Company
    Inventors: David A. Bulpett, Derek A. Ladd
  • Patent number: 7273900
    Abstract: There are provided a resin composition comprising a crosslinking component with a weight average molecular weight of 1,000 or less having a plurality of styrene groups and represented by the following formula: wherein R is a hydrocarbon skeleton, each of R1s is a hydrogen atom or a hydrocarbon group, each of R2, R3 and R4 is a hydrogen atom or an alkyl group, m is an integer of 1 to 4, and n is an integer of 2 or more, at least one high-molecular weight compound, an inorganic filler, and at least one treating agent for said inorganic filler; its cured product; and a prepreg, a laminate sheet having a conductor layer, and a multilayer printed wiring board obtained by processing the conductor layer of the laminate sheet into wiring.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: September 25, 2007
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Satoru Amou, Morimichi Umino, Akira Nagai, Yoshihiro Nakamura, Nobuyuki Minami
  • Patent number: 7247688
    Abstract: The invention concerns a method for preparing a first generation polymer comprising a step which consists in free radical polymerization of a composition comprising: at least an ethylenically unsaturated monomer, a source of free radicals, at least a dithiophosphoroester compound.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: July 24, 2007
    Assignee: Rhodia Chimie
    Inventors: Mathias Destarac, Frédéric Leising, Yves Gnanou, Daniel Taton, Alex Dureault
  • Patent number: 7208551
    Abstract: Polyaryleneetherketone triphenylphosphine oxide compositions incorporating cycloaliphatic units are provided which may be used as a polymeric binders in thermal control coatings for use in space environments. A method is also provided for synthesizing the polyaryleneetherketone triphenylphosphine oxide compositions. A method is also provided for synthesizing the monomeric compositions used to make the polyaryleneetherketone triphenylphosphine oxide compositions.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: April 24, 2007
    Assignee: University of Dayton
    Inventors: Thuy D. Dang, Matthew J. Dalton, Narayanan Venkatasubramanian, Joel A. Johnson, William A. Feld
  • Patent number: 7172810
    Abstract: Monofilaments comprising resin compositions which contain 1% by mass or more of a comonomer component (for example, hexafluoropropylene), have an intrinsic viscosity of 1.3 dl/g or more and a melting point of 165° C. or higher and contain a PVDF-based resin. Owing to the above composition and physical properties, the crystallinity and elastic modulus of the PVDF-based resin are altered. As a result, an appropriate flexibility can be imparted to the monofilaments while preventing deterioration in the mechanical properties.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: February 6, 2007
    Assignee: Kureha Corporation
    Inventors: Satoshi Hashimoto, Shingo Taniguchi, Yasuhiro Tada, Masayuki Hino, Masaru Satou, Takeo Takahashi
  • Patent number: 7098261
    Abstract: Novel phosphine and phosphine oxide ligands are prepared using polymeric supports. These compounds can be easily cleaved from the support, and along with the corresponding supported compounds, used as ligands in the preparation of novel, metal-complexed catalysts.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: August 29, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul J. Fagan, George Yanwu Li
  • Patent number: 6890524
    Abstract: This invention provides a method of preparing a polymeric delivery system for active ingredients. The delivery system is formed either by attaching the active ingredient to a linker through a hydrolyzable covalent bond, then forming a covalent bond between the linker and a portion of the subunits of a cross-linked polymer, or by attaching a linker to a portion of the subunits of a cross-linked polymer, then attaching the active ingredient to the polymer-linker combination through a hydrolyzable covalent bond. The invention also provides a delivery system comprising an active ingredient covalently bonded through a hydrolyzale covalent bond to a linker, which is in turn covalently bonded to a portion of subunits of a cross-linked polymer.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: May 10, 2005
    Assignee: Monsanto Company
    Inventor: Samuel J. Tremont
  • Patent number: 6890980
    Abstract: The invention concerns a method for preparing a first generation polymer comprising a step which consists in free radical polymerization of a composition comprising: at least an ethylenically unsaturated monomer, a source of free radicals, and at least a cyclic organic compound including at least a tetrathiophosphate group.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: May 10, 2005
    Inventors: Mathias Destarac, Frédéric Leising, Alex Dureault, Daniel Taton, Yves Gnanou, Ramiro Guerrero-Santos
  • Patent number: 6699940
    Abstract: The present invention is directed toward cyanoacrylate-based tissue adhesive or sealant compositions comprising cyanoacrylate-capped heterochain polymers, such as those comprising one or more oxyalkylene, alkylene carbonate, and ester-units derived from cyclic lactones. Such compositions can be radiochemically sterilized and used in repairing internal organs or tissue blocking body conduits.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: March 2, 2004
    Assignee: Poly Med, Inc.
    Inventor: Shalaby W. Shalaby
  • Publication number: 20030228629
    Abstract: Novel phosphine and phosphine oxide ligands are prepared using polymeric supports. These compounds can be easily cleaved from the support, and along with the corresponding supported compounds, used as ligands in the preparation of novel, metal-complexed catalysts.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 11, 2003
    Inventors: Paul J. Fagan, George Yanwu Li
  • Patent number: 6646079
    Abstract: For the preparation of a multimodal polymer at least one monomer is subjected to free radical polymerization in the presence of several alkoxyamines comprising the sequence of formula: in which RL is a monovalent radical exhibiting a molar mass of greater than 15, A represents the core of the alkoxyamine and n is a non-zero integer, the alkoxyamines exhibiting different values of n.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: November 11, 2003
    Assignee: Atofina
    Inventors: Olivier Guerret, Sophie Robin, Yves Gnanou
  • Patent number: 6596824
    Abstract: Provided is a continuous vapor-phase polymerization method for producing polyolefins. In the method, polymer agglomerates and aggregates are prevented from being formed, and polymer deposition on the wall of reactors and around stirring blades is prevented. The method enables continuous and stable production of high-quality polyolefins, with no pipe line clogging. The method is characterized by a specific supply mode of feeding a catalyst activity retardant such as alcohol into polymerization reactors. Specifically, the retardant is fed into the vapor phase in a polymerization reactor and into the powder phase therein through its side wall. Preferably, the retardant is fed into the powder phase through a plurality of sites of the side wall of the reactor.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: July 22, 2003
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Tomoo Nambu, Masao Aida, Masatoshi Toda
  • Publication number: 20030104476
    Abstract: Novel phosphine and phosphine oxide ligands are prepared using polymeric supports. These compounds can be easily cleaved from the support, and along with the corresponding supported compounds, used as ligands in the preparation of novel, metal-complexed catalysts.
    Type: Application
    Filed: July 1, 2002
    Publication date: June 5, 2003
    Inventors: Paul J. Fagan, George Yanwu Li
  • Patent number: 6569949
    Abstract: Inherently tacky, pressure-sensitive adhesive compositions useful in marking film applications are provided. The compositions comprise polymer particles prepared by emulsion polymerization of at least one monomer mixture. The monomer mixture comprises at least one alkyl acrylate, the alkyl group of which has from about 4 to 12 carbon atoms, preferably in an amount of from about 73% to 90% by weight, at least one unsaturated carboxylic acid containing from about 3 to 5 carbon atoms, preferably in an amount of from about 2% to 12% by weight, and at least one hard monomer, preferably present in an amount of from about 5% to 15% by weight. The particles have a mean diameter of about 300 nm or less, as determined by laser light scattering. Preferably the hard monomer comprises a styrenic monomer, more preferably both a styrenic monomer and an alkyl methacrylate. In some embodiments, the compositions are prepared by sequential polymerization of the first and second monomer charges.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: May 27, 2003
    Assignee: Avery Dennison Corporation
    Inventors: Ivan S. P Lee, Graham Yeadon, Paul Keller
  • Patent number: 6534597
    Abstract: Polymerizable ester surfactant, or a salt thereof, having the formula: R1—C(O)—R2—X wherein: R1 is an optionally substituted vinyl radical, R2 is a divalent polyoxyalkylene radical having at least two oxypropylene units, optional oxyethylene units in a block or random pattern, and a molar ratio oxypropylene units to oxyethylene units of at least about 2:1, preferably at least about 3:1, typically at least about 4:1 and more typically at least about 5:1, and X is a phosphate group, wherein in the ester the mono-phosphate ester to di-phosphate ester weight ratio is greater than 80:20. These polymerizable surfactant compounds are useful as the sole surfactant in producing polymer latices by emulsion polymerization by polymerization of them with another polymerizable monomer.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: March 18, 2003
    Assignee: Rhodia, Inc.
    Inventors: Herve Adam, Hui Shirley Yang, Jonathan D. Kiplinger, Eugene J. Anderson, Jr., Ning Chen, Robert Lee Reierson
  • Publication number: 20020150950
    Abstract: Methods of inactivating contaminants of a biological matrix are disclosed. The methods include the steps of: (a) contacting a biological matrix with an inactivating agent including an aziridino moiety, where a portion of the agent reacts with and inactivates the contaminant, and a portion of the agent remains unreacted; (b) contacting the product of step (a) with a solid support including at least 1 quenching moiety attached to the solid support through covalent bonds, under conditions and for a time sufficient to allow the unreacted agent to bond covalently to the quenching moiety; and (c) separating the solid support and the unreacted agent from the biological matrix, where the unreacted agent is attached to the solid support through covalent bonds.
    Type: Application
    Filed: June 11, 2002
    Publication date: October 17, 2002
    Inventors: Andrei A. Purmal, Samuel K. Ackerman
  • Patent number: 6462137
    Abstract: The present invention relates to star-block interpolymers having the following structure (X-Y)n-C, wherein X represents a random copolymer block derived from conjugated diene and monovinyl aromatic monomer; Y represents a polyconjugated diene block; C represents a residue derived from a multifunctional lithium based initiator; and n represents the functionality of the initiator and has a value of not less than 3; and preparation of the same. The star-block interpolymers according to the present invention have in the same molecule both a random copolymer block derived from conjugated diene and monovinyl aromatic monomer and a rubber block selected from the group consisting of a homopolymer block derived from conjugated diene, a tapered copolymer block derived from conjugated dienes, a random copolymer block derived from conjugated dienes and combinations thereof, and hence possess excellent properties of the both kinds of rubbers, and can be used widely as elastomeric materials.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: October 8, 2002
    Assignees: China Petroleum and Chemical Corporation, Research Institute of Beijing Yanshan Petrochemical Co., Ltd.
    Inventors: Yang Li, Hongde Xu, Yurong Wang, Dingyi Hong, Mingchu Gu, Mei Wang, Zhanxia Lü, Aili Xu
  • Patent number: 6388012
    Abstract: A thermosetting powder paint composition comprising (A) a resin composition component, (B) a hardener component and (C) a solid flow controlling component, wherein the component (A) contains a resin composition component having reactivity with the component (B), the component (B) contains a hardener having reactivity with the component (A), the component (C) contains a vinyl polymer which is solid at 20° C., and the relation between SPA of the component (A) and SPC of the component (C) satisfies the following numerical formula (1) and the following numerical formula (2) simultaneously. By this constitution, excellent blocking-resistance in storing as the powder paint composition and excellent appearance properties of a paint film formed by coating the powder paint composition can be simultaneously manifested. 8≦SPA≦13  (1) 7≦SPC≦SPA  (2).
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: May 14, 2002
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Hiroyuki Sakayama, Yoshio Kikuta, Mitsuyuki Mizoguchi, Takahisa Miyawaki, Tsuyoshi Matsumoto
  • Publication number: 20020010279
    Abstract: The present invention provides formulae for fluorescent compounds that have a number of properties which make them uniquely suited for use in sensors of analytes such as saccharides. The advantageous fluorescent properties include favorable excitation wavelengths, emission wavelengths, fluorescence lifetimes, and photostability. Additional advantageous properties include enhanced aqueous solubility, as well as temperature and pH sensitivity. The compound comprises an aryl or a substituted phenyl botonic acid that acts as a substrate recognition component, a fluorescence switch component, and a fluorophore. Fluorescent compounds are described that are excited at wavelengths greater than 400 nm and emit at wavelengths greater than 450 nm, which is advantageous for optical transmission through skin. The fluorophore is typically selected from transition metal-ligand complexes and thiazine, oxazine, oxazone, or oxazine-one as well as anthracene compounds.
    Type: Application
    Filed: March 30, 2001
    Publication date: January 24, 2002
    Inventors: Joe H. Satcher, Stephen M. Lane, Christopher B. Darrow, Douglas R. Cary, Joe Anh Tran
  • Publication number: 20020002247
    Abstract: Methods have been developed to produce phosphazene modified organic or siloxane polymers. The method includes (a) providing an organic or siloxane polymer comprising phosphine units, and (b) reacting the organic or siloxane polymer with a phosphazene azide compound under conditions wherein the phosphazene azide compound is bound to the phosphine units in the polymer, thereby producing the phosphazene-modified organic or siloxane polymer. The organic polymer of step (a) is produced by reacting a first monomer comprising phosphine with a second monomer via free radical or anionic polymerization techniques to produce the organic polymer comprising phosphine units. The first and second monomers can be identical. A wide variety of organic polymer backbones can be modified using these techniques.
    Type: Application
    Filed: May 7, 2001
    Publication date: January 3, 2002
    Inventors: Harry R. Allcock, Thomas J. Hartle, Michael B. McIntosh, Nicolas J. Sunderland, Robbyn Prange, Jonathan P. Taylor
  • Patent number: 6331594
    Abstract: A process for preparing blends of syndiotactic 1,2-polybutadiene and rubbery elastomers comprising the steps of (1) providing a mixture of high cis-1,4-polybutadiene rubber cement and 1,3-butadiene monomer, and (2) combining (a) an iron-containing compound, (b) a hydrogen phosphite, and (c) an organoaluminum compound to form a catalyst composition outside the presence of the mixture of rubber cement and monomer, and (3) adding the catalyst composition to the mixture and thereby polymerizing the 1,3-butadiene monomer into syndiotactic 1,2-polybutadiene within the rubber cement.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: December 18, 2001
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Publication number: 20010007000
    Abstract: A process for preparing blends of syndiotactic 1,2-polybutadiene and rubbery elastomers comprising the steps of (1) providing a mixture of high cis-1,4-polybutadiene rubber cement and 1,3-butadiene monomer, and (2) combining (a) an iron-containing compound, (b) a hydrogen phosphite, and (c) an organoaluminum compound to form a catalyst composition outside the presence of the mixture of rubber cement and monomer, and (3) adding the catalyst composition to the mixture and thereby polymerizing the 1,3-butadiene monomer into syndiotactic 1,2-polybutadiene within the rubber cement.
    Type: Application
    Filed: January 23, 2001
    Publication date: July 5, 2001
    Inventor: Steven Luo
  • Publication number: 20010005502
    Abstract: A stable oral composition comprising a natural or synthetic macromolecule with a monofluorophosphate moiety covalently bonded thereto.
    Type: Application
    Filed: December 15, 2000
    Publication date: June 28, 2001
    Inventors: Alison Foster, Christopher David Gibbs, Anne Hilton, Ezat Khoshdel, Steven Rannard
  • Patent number: 6252004
    Abstract: A process for preparing emulsion polymer particles comprising: (a) providing an aqueous emulsion of a multistage core-shell polymer with a hydrophilic core, (b) adding one or more inhibitors to substantially stop any polymerization, (c) adding monomer to the emulsion polymer, (d) adding swelling agent and (e) reducing the level of monomer by at least fifty percent. The process produces multistage polymers having low dry-bulk density useful in coating compositions such paints and paper coatings.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: June 26, 2001
    Assignee: Rohm and Haas Company
    Inventors: Robert Mitchell Blankenship, James Keith Bardman
  • Patent number: 6197888
    Abstract: Blends of syndiotactic 1,2-polybutadiene and rubbery elastomers are prepared by a process that comprises polymerizing 1,3-butadiene monomer into syndiotactic 1,2-polybutadiene within a rubber cement of at least one rubbery elastomer by using an iron-based catalyst composition that is formed by combining an iron-containing compound, a hydrogen phosphite, and an organoaluminum compound.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: March 6, 2001
    Assignee: Bridgestone Corporation
    Inventor: Steven Luo
  • Patent number: 6166146
    Abstract: A curable resin composition comprising (1) a polymerizable vinyl monomer, (2) a polymerization initiator, (3) an aromatic amine and/or a pyridine derivative, (4) a .beta.-diketone chelate and/or a .beta.-keto-ester, and (5) a phosphate.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: December 26, 2000
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Suto, Koichi Taguchi
  • Patent number: 6162882
    Abstract: The present invention is directed to a process of atom (or group) transfer radical polymerization for the synthesis of novel homopolymer or a block or graft copolymer, optionally containing at least one polar group, with well defined molecular architecture and narrow polydipersity index, in the presence of an initiating system comprising (i) an initiator having a radically transferrable atom or group, (ii) a transition metal compound, and (iii) a ligand, the present invention is also directed to the synthesis of a macromolecule having at least two halogen groups which can be used as a macroinitiator component (i) to subsequently form a block or graft copolymer by an atom or group transfer radical polymerization process; the present invention is also directed to a process of atom or group transfer radical polymerization for the synthesis of a branched or hyperbranched polymer; in addition, the present invention is directed to a process of atom or group transfer radical polymerization for the synthesis of a mac
    Type: Grant
    Filed: November 2, 1999
    Date of Patent: December 19, 2000
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Simion Coca, Scott G. Gaynor, Yoshiki Nakagawa, Seong Mu Jo
  • Patent number: 6124411
    Abstract: The present invention is directed to a process of atom (or group) transfer radical polymerization for the synthesis of novel homopolymer or a block or graft copolymer, optionally containing at least one polar group, with well defined molecular architecture and narrow polydispersity index, in the presence of an initiating system comprising (i) an initiator having a radically transferrable atom or group, (ii) a transition metal compound, and (iii) a ligand; the present invention is also directed to the synthesis of a macromolecule having at least two halogen groups which can be used as a macroinitiator component (i) to subsequently form a block or graft copolymer by an atom or group transfer radical polymerization process; the present invention is also directed to a process of atom or group transfer radical polymerization for the synthesis of a branched or hyperbranched polymer; in addition, the present invention is directed to a process of atom or group transfer radical polymerization for the synthesis of a ma
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: September 26, 2000
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Simion Coca, Scott G. Gaynor, Yoshiki Nakagawa, Seong Mu Jo
  • Patent number: 6008299
    Abstract: This invention relates generally to optic devices such as ophthalmic lenses, lens blanks, and lens preforms, made from a thermoplastic material of a specific formula and a process for forming the same.
    Type: Grant
    Filed: August 15, 1997
    Date of Patent: December 28, 1999
    Assignees: Innotech, Inc., Johnson & Johnson Vision Care, Virginia Tech Intellectual Properties, Inc.
    Inventors: James E. McGrath, Venkateshwaran N. Sekharipuram
  • Patent number: 5994497
    Abstract: The invention relates to hardenable compositions which contain as the essential constituent, in the non-hardened condition, at least one phosphazene derivative of the general formula [NP--(X--Y--Z).sub.2 ].sub.n, and at least one cross-linking agent with at least two functional groups which are selected among the Z radicals and which can react with the functional Z radicals of the phosphazene derivative is provided, whereinX radicals are from the group --O--, --S--, --NH-- or --NR--, preferably oxygen,Y are aliphatic, cycloaliphatic, aromatic and/or heteroaromatic hydrocarbon groups,Z are functional radicals from the group --OH, --NH.sub.2, --NCO, --COOH, --CHO, --CH.dbd.CH.sub.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: November 30, 1999
    Assignee: DaimlerChrysler AG
    Inventors: Thomas Raith, Wolfgang Nuding
  • Patent number: 5945491
    Abstract: The present invention is directed to a process of atom (or group) transfer radical polymerization for the synthesis of novel homopolymer or a block or graft copolymer, optionally containing at least one polar group, with well defined molecular architecture and narrow polydispersity index, in the presence of an initiating system comprising (i) an initiator having a radically transferrable atom or group, (ii) a transition metal compound, and (iii) a ligand; the present invention is also directed to the synthesis of a macromolecule having at least two halogen groups which can be used as a macroinitiator component (i) to subsequently form a block or graft copolymer by an atom or group transfer radical polymerization process; the present invention is also directed to a process of atom or group transfer radical polymerization for the synthesis of a branched or hyperbranched polymer; in addition, the present invention is directed to a process of atom or group transfer radical polymerization for the synthesis of a ma
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: August 31, 1999
    Assignee: Carnegie-Mellon University
    Inventors: Krzysztof Matyjaszewski, Simion Coca, Scott G. Gaynor, Yoshiki Nakagawa, Seong Mu Jo
  • Patent number: 5929169
    Abstract: This invention provides curable fluoroelastomer compositions comprising: (a) a fluorine-containing polymer or blend of fluorine-containing polymers each comprising interpolymerized units derived from one or more fluorine-containing ethylenically unsaturated monomers; (b) at least one organo-onium compound such as those selected from the group consisting of ammonium, arsonium, phosphonium, stibonium, amino-phosphonium, phosphorane (e.g. triarylphosphorane), iminium, and sulfonium compounds; and (c) one or more aryl, allyl or alkyl carbonate-blocked compounds as crosslinking agents. Methods of curing fluoroelastomer compositions, and articles made therefrom are also described.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: July 27, 1999
    Assignee: Dyneon LLC
    Inventors: Naiyong Jing, Robert E. Kolb
  • Patent number: 5902838
    Abstract: Cationically curable adhesives and sealants with increased viscosities and improved rheological control and good storage stability are prepared using a cationically curable monomer and a thickening polymer which is the alkylation reaction product of poly(4-hydroxystyrene) or poly(2-hydroxystyrene) with a compound RX where R is allyl, methallyl, crotyl or prenyl and X is Cl, Br or I. The cationically curable monomer suitably includes at least one alkenyloxystyrene monomer. Such thickened adhesives are useful as edge sealants for flat panel display devices. A-stage curing of the adhesive with UV irradiation allows for near ambient temperature fixturing of the device assemblies and B-stage thermal curing of the adhesive can be conducted at much lower temperatures than are needed for glass frit sealants. The B-stage cured products have thermal resistance, outgassing and substrate adhesion properties adequate for flat panel display devices.
    Type: Grant
    Filed: October 1, 1996
    Date of Patent: May 11, 1999
    Assignee: Loctite Corporation
    Inventors: John G. Woods, Maria L. Masterson, Matthew P. Burdzy, Bernard M. Malofsky
  • Patent number: 5837776
    Abstract: Aqueous dispersions of water soluble nonionic and anionically charged vinyl and allyl addition polymers can be obtained by polymerizing in the presence of an anionically charged water soluble polymer stabilizer in a saturated salt solution. Methods for the preparation of these polymers, and their compositions are disclosed.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: November 17, 1998
    Assignee: Nalco Chemical Company
    Inventors: Radhakrishnan Selvarajan, John R. Hurlock