Solid Polymer Derived From Hetero-o-cyclic Compounds As Sole Reactants Wherein At Least One Reactant Contains A Hetero-o-ring Other Than Solely As A 1,2-epoxy Or Anhydride, And Wherein None Of The Reactants Contains A Plurality Of Methylol Groups Or Derivatives Thereof Patents (Class 525/410)
  • Patent number: 10214626
    Abstract: A class of bio-based bifuran cross-linkers are disclosed. Polymers cross-linked using the cross-linkers are also disclosed.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: February 26, 2019
    Assignee: International Business Machines Corporation
    Inventors: Scott B. King, Brandon M. Kobilka, Joseph Kuczynski, Jason T. Wertz
  • Patent number: 10166294
    Abstract: The present disclosure provides copolymers of 2-substituted-2-oxazolines possessing two or three reactive functional groups which are also chemically orthogonal. The copolymers described may be random copolymers, block copolymers or a mixture of random and block copolymer configurations. Furthermore, the present disclosure provides novel methods for synthesizing the above polymers and for conjugating to molecules such as targeting, diagnostic and therapeutic agents.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: January 1, 2019
    Assignee: Serina Therapeutics, Inc.
    Inventors: J Milton Harris, Kunsang Yoon, Michael David Bentley, Zhihao Fang, Tacey Viegas
  • Patent number: 10125217
    Abstract: The invention relates to a process for producing polyether carbonate polyols through an addition reaction of alkylene oxides and carbon dioxide onto one or more H-functional starter substances in the presence of a double metal cyanide catalyst or in the presence of a metal complex catalyst based on the metals zinc and/or cobalt, characterized in that one or more H-functional starter substances containing at least 1000 ppm of component (K) is/are continuously metered into the reactor during the reaction, where component (K) is selected from at least one compound containing a phosphorus-oxygen bond and a phosphorus compound that can form one or more P—O bonds through reaction with OH-functional compounds.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: November 13, 2018
    Assignee: COVESTRO DEUTSCHLAND AG
    Inventors: Jörg Hofmann, Hans-Georg Pirkl, Kai Laemmerhold, Hartmut Nefzger, Matthias Wohak, Stefanie Braun, Christoph Gürtler, Aurel Wolf, Jens Langanke
  • Patent number: 10011751
    Abstract: Compositions comprising Michael acceptor-terminated sulfur-containing prepolymers, thiol-terminated sulfur-containing prepolymers, and e phosphine catalysts useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life, cure rapidly following activation, and provide cured sealants having improved properties useful in aerospace sealant applications.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: July 3, 2018
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Lawrence G. Anderson, Juexiao Cai, Mark P. Bowman, Renhe Lin
  • Patent number: 10003025
    Abstract: The present invention is generally directed to the field of organic semiconductor material. It provides a donor-acceptor conjugated polymer containing 3,4-ethylenedioxythiophene ring as a side chain and a photodetector device containing the same.
    Type: Grant
    Filed: September 23, 2014
    Date of Patent: June 19, 2018
    Assignee: SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
    Inventors: Yongye Liang, Tingbin Yang, Luozheng Zhang, Xugang Guo
  • Patent number: 9882215
    Abstract: The disclosed technology relates generally to devices comprising conductive polymers and more particularly to electrochemical devices comprising self-compensating conductive polymers. In one aspect, electrochemical energy storage device comprises a negative electrode comprising an active material including a redox-active polymer. The device additionally comprises a positive electrode comprising an active material including a redox-active polymer. The device further comprises an electrolyte material interposed between the negative electrode and positive electrode and configured to conduct mobile counterions therethrough between the negative electrode and positive electrode.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: January 30, 2018
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Paul Johnson, Jose Antonio Bautista-Martinez, Cody Friesen, Elise Switzer
  • Patent number: 9670314
    Abstract: A method for manufacturing poly(2-hydroxyalkanoic acid) included the steps of a) mixing a cyclic diester of a 2-hydroxyalkanoic acid and a polymerization catalyst, b) polymerizing the cyclic diester to form poly(2-hydroxyalkanoic acid) in liquid phase, c) adding a phosphoric acid ester as a catalyst deactivating agent to the liquid phase, d) applying a devolatilization step to the liquid phase, and e) allowing the poly(2-hydroxyalkanoic acid) to solidify. The catalyst deactivating agent is added after the devolatilization step is applied. The method results in an improved melt stability of the manufactured polymer.
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: June 6, 2017
    Assignees: PURAC BIOCHEM B.V., SULZER CHEMTECH AG
    Inventors: Siebe Cornelis De Vos, Gerrit Gobius Du Sart, Robert Edgar Haan, Francois Loviat
  • Patent number: 9637634
    Abstract: The present invention relates to flame-retardant, impact-modified polycarbonate (PC) compositions and molding compositions which have good mechanical properties, good resistance to chemicals and high hydrolytic stability. The present application additionally relates to the use of the compositions in the production of molded articles, and to molded articles produced from the compositions.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: May 2, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Mathieu Jung, Thomas Eckel, Vera Taschner
  • Patent number: 9550876
    Abstract: Disclosed is a polylactic acid resin composition having excellent bleed resistance and molecular weight retention ratio. A polylactic acid resin molded body is also disclosed. The polylactic acid resin composition contains a polylactic acid resin (a), a metal hydrate (b) having an alkali metal-containing substance content of not more than 0.2% by mass, and a phosphazene derivative (c). The polylactic acid resin molded body is obtained by molding the polylactic acid resin composition. Specifically, a polylactic acid molded body can be produced by filling a melt of the polylactic acid resin composition into a mold at a temperature in the range from glass transition temperature of said polylactic acid resin (a) to 110° C. and molding the melt therein.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: January 24, 2017
    Assignee: NEC CORPORATION
    Inventors: Yukihiro Kiuchi, Tsunenori Yanagisawa, Masatoshi Iji, Kazuhiko Inoue, Shin Serizawa
  • Patent number: 9315665
    Abstract: Provided herein are a method for preparing a resin composition for an expandable polypropylene carbonate and an expandable polypropylene carbonate prepared therefrom. More particularly, the present invention relates to a method for preparing a resin composition for an expandable polypropylene carbonate capable of using supercritical carbon dioxide as a foaming agent and preparing a foam having excellent moldability by an appropriate foaming method, and an expandable polypropylene carbonate prepared therefrom. The expandable polypropylene carbonate capable of having high magnification, excellent thermal stability, and dimensional stability may be prepared by using the resin composition according to the present invention.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: April 19, 2016
    Assignees: SK Innovation Co., Ltd., SK Global Chemical Co., Ltd.
    Inventors: Young Hyo Park, Kwang Jin Chung, Myung Ahn Ok, Seung Gweon Hong, Min Ho Jeon
  • Patent number: 9212251
    Abstract: The present disclosure relates to impact strength modifiers, the derivative products thereof, and the use thereof in producing two-component epoxy resin compositions. The disclosure in particular relates to amino group terminated impact strength modifiers prepared by reacting a polyurethane prepolymer having isocyanate groups, a primary diamine, and optionally at least one Michael acceptor. The two-component epoxy resin compositions thus formulated are characterized by a great increase in impact strength while retaining an acceptable tensile shear strength. The impact strength modifiers according to the disclosure and the epoxy resin compositions comprising same are in particular suitable for vehicle manufacturing.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: December 15, 2015
    Assignee: SIKA TECHNOLOGY AG
    Inventors: Karsten Frick, Jürgen Finter, Andreas Kramer, Ulrich Gerber
  • Patent number: 9206311
    Abstract: The present invention relates to biodegradable polymer mixtures comprising i) 40% to 95% by weight, based on the total weight of components i to ii, of at least one polyester based on aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds; ii) 5% to 60% by weight, based on the total weight of said components i to ii, of polyalkylene carbonate, particularly polypropylene carbonate; iii) 0% to 60% by weight, based on the total weight of said components i to iii, of at least one biodegradable homo- or copolyester selected from the group consisting of polylactic acid, polycaprolactone and polyhydroxyalkanoate, and/or of an inorganic or organic filler; iv) 0% to 10% by weight, based on the total weight of said components i to ii, of an epoxy-containing copolymer based on styrene, acrylic ester and/or methacrylic ester, and v) 0% to 15% by weight of an additive selected from the group consisting of lubricant, antiblocking agent, antistat, UV absorber, UV stabilizer, thermal stabil
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: December 8, 2015
    Assignee: BASF SE
    Inventors: Tobias H. Steinke, Hans-Helmut Görtz, Jürgen Ahlers, Freddy Gruber, Gabriel Skupin
  • Patent number: 9150690
    Abstract: A method of producing a polylactic acid block copolymer constituted of a segment(s) composed of L-lactic acid units and a segment(s) composed of D-lactic acid units, includes obtaining a mixture by mixing poly-L-lactic acid and poly-D-lactic acid one of which has a weight average molecular weight of 60,000 to 300,000 and the other of which has a weight average molecular weight of 10,000 to 50,000, the mixture having a weight average molecular weight of not less than 90,000 and a degree of stereocomplexation (Sc) satisfying: Sc=?Hh/(?Hl+?Hh)×100>60 (wherein ?Hh represents the heat of fusion of stereocomplex crystals (J/g), and ?Hl represents the heat of fusion of crystals of poly-L-lactic acid alone and crystals of poly-D-lactic acid alone (J/g)); and subsequently subjecting the mixture to solid-phase polymerization at a temperature lower than the melting point of the mixture.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: October 6, 2015
    Assignee: Toray Industries, Inc.
    Inventors: Yoshitake Takahashi, Takuma Naotsuka, Ken Sudo, Hiroyuki Ome
  • Patent number: 9147603
    Abstract: A microelectronic structure may include an interconnect structure, an amine functional reactive polymer layer grafted onto the interconnect structure, and a dielectric layer on the amine functional reactive polymer layer, wherein the dielectric layer is bonded to the polymer layer with an amine bond. In one embodiment, the interconnect structure may be fabricated from a copper containing material. In a further embodiment, the dielectric layer may comprise an oxygen functional reactive dielectric layer, such as an epoxy dielectric layer. In one method of fabricating the microelectronic structure, the amine functional reactive polymer layer may be grafted onto the interconnect structure by an initiated chemical vapor deposition process.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: September 29, 2015
    Assignee: Intel Corporation
    Inventors: Chandramouleeswaran Subramani, Ravindra V. Tanikella
  • Patent number: 9040635
    Abstract: A polymer, optionally made from renewable sources, comprising a specific chemical structure that is a result of the polymerization of ?-hydroxycarbonyl compounds (alpha-hydroxycarbonyl compounds), particularly ?-hydroxyaldehydes (alpha-hydroxyaldehydes) and ?-hydroxyketones (alpha-hydroxyketones), or glycolaldehyde. A method of polymerization, the method comprising the step of reacting trimethylsilyl trifluoromethanesulfonate with the cyclic dimer of one or more ?-hydroxycarbonyl compounds. A method of making said polymer, the method comprising dehydrating a cyclic dimer of one or more ?-hydroxycarbonyl compounds. An end-capped polymer made from one or more ?-hydroxycarbonyl compounds and terminal end-cap groups.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: May 26, 2015
    Assignee: TDA Research, Inc.
    Inventors: Silvia DeVito Luebben, James William Raebiger, Aaron Jeremy Skaggs
  • Publication number: 20150134048
    Abstract: The present invention is directed to polymeric materials comprising biodegradable, dioxanone-based copolymers and implantable devices (e.g., drug-delivery stents) formed of such materials. The polymeric materials can also contain at least one additional biocompatible moiety, at least one non-fouling moiety, at least one biobeneficial material, at least one bioactive agent, or a combination thereof. The polymeric materials are designed to improve the mechanical, physical and biological properties of implantable devices formed thereof.
    Type: Application
    Filed: January 22, 2015
    Publication date: May 14, 2015
    Inventor: Ni Ding
  • Patent number: 9023953
    Abstract: A method of producing a poly(lactic acid) resin includes carrying out direct polycondensation using lactic acid as a main raw material to prepare a crystallized prepolymer having a weight average molecular weight of 5,000 to 25,000, an enthalpy of fusion ?Hm of 50 to 65 J/g and an acid value A mol/ton satisfying (1) below: 450/(Mw/10,000?0.14)<A<950/(Mw/10,000?0.14)??(1) (wherein Mw represents weight average molecular weight of the crystallized prepolymer); and subjecting the crystallized prepolymer to solid-phase polymerization.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: May 5, 2015
    Assignee: Toray Industries, Inc.
    Inventors: Tatsuya Nagano, Tsuyoshi Tanaka, Hiroyuki Ome
  • Patent number: 9006254
    Abstract: This invention relates to compositions, and related compounds and methods, of conjugates of immunomodulatory agents and polymers or unit(s) thereof. The conjugates may be contained within synthetic nanocarriers, and the immunomodulatory agents may be released from the synthetic nanocarriers in a pH sensitive manner.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: April 14, 2015
    Assignee: Selecta Biosciences, Inc.
    Inventors: Charles Zepp, Grayson B. Lipford, Yun Gao, Lloyd Johnston, Fen-ni Fu, Mark J. Keegan, Sam Baldwin
  • Publication number: 20150087788
    Abstract: Polyglutamates are well known to be highly biocompatible, biodegradable and multifunctional polymers, which have been already used as building blocks in polymer drug conjugates and polymeric micelles. Those systems have been applied to various medical applications ranging from therapy to molecular imaging. Furthermore a polyglutamic acid (PGA) paclitaxel conjugate has already entered clinical studies (Opaxio™ PGA-PTX conjugate currently in phase III of Clinical trials). In this context, a synthetic pathway to a plethora functional polyglutamates (homopolymers, block-co-polymers, triblocks) with well-defined structure, adjustable molecular weight (Mw) and low dispersity (D=Mw/Mn<1.2) applying the ring opening polymerization (ROP) of N-carboxyanhydrides (NCA) has been developed.
    Type: Application
    Filed: October 23, 2012
    Publication date: March 26, 2015
    Inventors: Maria Jesus Vicent Docon, Matthias Barz, Fabiana Canal, Inmaculada Conejos Sanchez, Aroa Duro Castano, Richard Mark England
  • Patent number: 8974319
    Abstract: An object of the present invention is to provide a golf ball which travels a great distance on the driver shots and stops quickly on the green on the approach shots. The present invention is directed to a golf ball material having a shear loss modulus G? of 2.11×107 Pa or less, and a ratio (E?/G?) of a tensile loss modulus E? to the shear loss modulus G? of 1.78 or more, when measuring the shear loss modulus G? in a shear mode and the tensile loss modulus E? in a tensile mode at conditions of a temperature of 0° C., oscillation frequency of 10 Hz using a dynamic viscoelasticity measuring apparatus.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 10, 2015
    Assignee: SRI Sports Limited
    Inventors: Kazuyoshi Shiga, Toshiyuki Tarao, Keiji Ohama
  • Patent number: 8975344
    Abstract: The instant disclosure describes polyester synthesis processes, including processes for the ring-opening polymerization (ROP) of cyclic organic monomer components and components comprising a functional group using an organocatalyst system to effect ROP-based block copolymer preparation.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: March 10, 2015
    Assignee: Xerox Corporation
    Inventors: Andrew J Myles, Karen A Moffat, Jordan H Wosnick, Valerie M Farrugia
  • Patent number: 8969485
    Abstract: The present disclosure relates to coated biodegradable materials having a reduced amount of residual catalysts and methods thereof.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: March 3, 2015
    Assignee: Covidien LP
    Inventors: Nadya D. Belcheva, Norman Aminuddin
  • Patent number: 8952126
    Abstract: A method of making a pure block copolymer includes forming a crude block copolymer; heating a solution of the crude block copolymer and alcohol; and cooling the solution to promote precipitation of a purified block copolymer, wherein an amount of impurities remaining in the purified block copolymer is from about 0 to about 5 wt % based on a total weight of the purified block copolymer; a ratio of a polydispersity index of the crude block copolymer to a polydispersity index of the purified block copolymer is from about 1.02 to about 1.25; a ratio of a molecular weight of the crude block copolymer to a molecular weight of the purified block copolymer is from about 0.75 to about 1.0; and a ratio of a number average molecular weight of the crude block copolymer to a number average molecular weight of the purified block copolymer is from about 0.65 to about 1.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: February 10, 2015
    Assignees: Xerox Corporation, National Research Council of Canada
    Inventors: Andrew J. Myles, Karen A. Moffat, Jordan H. Wosnick, Valerie M. Farrugia
  • Patent number: 8937135
    Abstract: The present invention relates to biodegradable polymer mixtures comprising i) 40% to 95% by weight, based on the total weight of components i to ii, of at least one polyester based on aliphatic or aliphatic and aromatic dicarboxylic acids and aliphatic dihydroxy compounds; ii) 5% to 60% by weight, based on the total weight of said components i to ii, of polyalkylene carbonate, particularly polypropylene carbonate; iii) 0% to 60% by weight, based on the total weight of said components i to iii, of at least one biodegradable homo- or copolyester selected from the group consisting of polylactic acid, polycaprolactone and polyhydroxyalkanoate, and/or of an inorganic or organic filler; iv) 0% to 10% by weight, based on the total weight of said components i to ii, of an epoxy-containing copolymer based on styrene, acrylic ester and/or methacrylic ester, and v) 0% to 15% by weight of an additive selected from the group consisting of lubricant, antiblocking agent, antistat, UV absorber, UV stabilizer, thermal stabil
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: January 20, 2015
    Assignee: BASF SE
    Inventors: Tobias Heinz Steinke, Hans-Helmut Görtz, Jürgen Ahlers, Freddy Gruber, Gabriel Skupin
  • Patent number: 8901275
    Abstract: A method for producing a crystallized polyester comprises the crystallization step of applying a shear and/or a pressure to a polyester selected from an aliphatic polyester and a polyalkylene terephthalate at a temperature of (Tm?70° C.) to (Tm+20° C.), where Tm is a melting point of the polyester, thereby converting the polyester into a state having a crystallinity of 10% or more and fluidity.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: December 2, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Mitsushige Hamaguchi, Takuma Naotsuka, Yoshitake Takahashi, Toru Takahashi, Hiroyuki Ome
  • Patent number: 8895676
    Abstract: The resin composition of the present invention is a resin composition characterized by including (a) a polyimide, a polybenzoxazole, a polyimide precursor or a polybenzoxazole precursor, (b) 1,5-dihydroxynaphthalene, 1,6-dihydroxynaphthalene, 1,7-dihydroxynaphthalene, or 2,3-dihydroxynaphthalene, and (c) a thermal cross-linking agent having a specific structure. By the use of the resin composition of the present invention, it is possible to reduce the transmittance in the visible region of a cured film while maintaining the transmittance of a resin film before curing.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: November 25, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Kazuto Miyoshi, Mika Koshino, Masao Tomikawa
  • Patent number: 8895667
    Abstract: Methods are provided for making reversible crosslinked polymers. Exemplary methods comprise reacting first and second thermoplastic polymers having non-hindered olefins in the presence of a metathesis catalyst under conditions sufficient to form a crosslinked polymer. In certain embodiments, the methods comprise providing a crosslink promoting additive to improve the strength of the crosslinked polymer. In some embodiments, the methods comprise decrosslinking a crosslinked polymer through a metathesis or an ozonolysis reaction.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: November 25, 2014
    Assignee: Tyco Electronics Corporation
    Inventors: Mark W. Ellsworth, Stefanie M. Gravano-Doerffler
  • Patent number: 8871872
    Abstract: Provided is a method for a poly(GAP-co-THF)diol prepolymer in which THF monomer units are copolymerized to GAP, having high difunctionality, a reduced amount of cyclic oligomer side products having a small molecular weight, a wide copolymer composition and controlled molecular weight. The resulted poly(GAP-co-THF)diol prepolymer according to the present invention is used as a binder for a high-energy PBX or composite propellant, specifically used as a binder in the preparation of polyurethane having excellent mechanical properties.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: October 28, 2014
    Assignee: Agency For Defense Development
    Inventors: Bum Jae Lee, In Joo Bae, Jin Seuk Kim, Seung Hee Kim
  • Patent number: 8859689
    Abstract: Polymer compositions based on polyaniline and carbonyl-functionalized polysilicones, and methods for making these polymer compositions are disclosed in the present application. The polymer compositions have, for example, good solubility, processability, mechanical performance and conductivity.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: October 14, 2014
    Assignee: Nanjing University
    Inventors: Yun Lu, Hongjuan Wang
  • Publication number: 20140302302
    Abstract: Embodiments of the present disclosure, in one aspect, relate to polymer compositions, methods of making polymer compositions, structures (e.g., textile articles) having the polymer composition covalently bonded to the structure, methods of attaching the polymer to the surface of the structure having —OH functionality (e.g., Calkyl—OH), methods of decreasing the amount of microorganisms formed on a structure, and the like.
    Type: Application
    Filed: October 12, 2012
    Publication date: October 9, 2014
    Inventor: Jason J. Locklin
  • Publication number: 20140301970
    Abstract: Gel-forming block copolymers were prepared comprising i) a central hydrophilic block consisting essentially of a divalent poly(ethylene oxide) chain and ii) two peripheral monocarbonate or polycarbonate hydrophobic blocks. The hydrophobic blocks comprise one or more vitamin-bearing subunits. The vitamin-bearing subunits comprise a carbonate backbone portion and a side chain comprising a covalently bound form of a vitamin. The gel-forming block copolymers can be used to prepare various biodegradable and/or biocompatible hydrogel and organogel drug compositions, in particular antimicrobial and/or anti-tumor drug compositions. The hydrogel compositions can be suitable for depot injections. Synergistic enhancement of toxicity to microbes was observed with compositions comprising an antimicrobial cationic polymer and an antimicrobial compound.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 9, 2014
    Applicants: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: James L. Hedrick, Ashlynn L. Z. Lee, Victor W. L. Ng, Yi Yan Yang
  • Publication number: 20140295117
    Abstract: A composite material having reinforcing fibres and a matrix of matrix material surrounding the reinforcing fibres. The matrix material contains a resin and the reinforcing fibres contain polyphenylene sulfide.
    Type: Application
    Filed: February 4, 2012
    Publication date: October 2, 2014
    Applicant: THYSSENKRUPP UHDE GMBH
    Inventors: Michael Rohlmann, Dieter Rossberg
  • Patent number: 8846818
    Abstract: Thermoplastic polymer particles directly cross-linked together or cross-linked via a separate and independent polymer network to form an inter-penetrating network are disclosed herein, along with methods of manufacturing and use as interleaf tougheners of pre-pregs and composite articles.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: September 30, 2014
    Assignee: Cytec Technology Corp.
    Inventors: Yi Wei, Alexandre A. Baidak, James Senger
  • Patent number: 8846790
    Abstract: A resin composition is provided. The resin composition comprises an epoxy resin, a hardener, and a modifier, wherein the modifier is a polymer solution obtainable from the following steps: (a) dissolving an N,O-heterocyclic compound of Formula I or Formula II into a first solvent to form a first reaction solution: (b) heating the first reaction solution to a first temperature to carry out a ring-opening polymerization to provide a solution of ring-opening polymerized product; and (c) cooling the solution of ring-opening polymerized product to a second temperature to substantially terminate the ring-opening polymerization to obtain the polymer solution, wherein, the first solvent is unreactive to the N,O-heterocyclic compound; the first temperature is higher than the softening temperature of the N,O-heterocyclic compound and lower than the boiling point of the first solvent; and the second temperature is lower than the first temperature.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: September 30, 2014
    Assignee: Taiwan Union Technology Corporation
    Inventors: Cheng Ping Liu, Tsung Hsien Lin, Hsien Te Chen, Chih Wei Liao
  • Patent number: 8841382
    Abstract: The present invention provides an amphiphile of the formula (I) as described hereinafter. The invention further relates to a process for preparing the amphiphile and to a composition comprising the amphiphile and a sparingly water-soluble active ingredient. It further relates to a process for producing the composition by contacting the amphiphile and the active ingredient, and to the use of the amphiphile for solubilizing a sparingly water-soluble active ingredient in aqueous solutions. The invention also relates to the use of the amphiphile in an agrochemical formulation comprising the amphiphile and a pesticide for controlling phytopathogenic fungi and/or unwanted vegetation and/or unwanted insect or mite infestation and/or for regulating the growth of plants, and finally to plant propagation material comprising the amphiphile.
    Type: Grant
    Filed: August 31, 2011
    Date of Patent: September 23, 2014
    Assignee: BASF SE
    Inventors: Anna Cristadoro, Holger Türk, Michael Ishaque, Rabie Al-Hellani
  • Publication number: 20140271527
    Abstract: The present disclosure provides polymer conjugates comprising a polymer and an agent, the agent linked to the polymer via a linking group containing a cleavable moiety.
    Type: Application
    Filed: November 1, 2012
    Publication date: September 18, 2014
    Applicant: Serina Therapeutics, Inc.
    Inventors: Randall Moreadith, Kunsang Yoon, Zhihao Fang, Rebecca Weimer, Bekir Dizman, Tacey Viegas, Michael David Bentley
  • Patent number: 8834763
    Abstract: The present disclosure relates to a method of forming fibers. First and second precursors, each possessing a core and at least one functional group known to have click reactivity, are mixed in a hopper. The mixed precursors are then extruded through an extrusion die to crosslink and produce a filament. Polymerization of the first and second precursors is catalyzed by transition metal ions.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: September 16, 2014
    Assignees: Covidien LP, Sofradim Production
    Inventors: Ahmad Robert Hadba, Sebastien Ladet
  • Patent number: 8829121
    Abstract: The invention provides a piezoelectric polymer material comprising a helical chiral polymer having a weight average molecular weight of from 50,000 to 1,000,000 and optical activity, the piezoelectric polymer material having: crystallinity as obtained by a DSC method of from 20% to 80%; a transmission haze with respect to visible light of 50% or less; and a product of the crystallinity and a standardized molecular orientation MORc, which is measured with a microwave transmission-type molecular orientation meter at a reference thickness of 50 ?m, of from 40 to 700.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: September 9, 2014
    Assignees: Mitsui Chemicals, Inc., A School Corporation Kansai University
    Inventors: Mitsunobu Yoshida, Shunsuke Fujii, Hitoshi Onishi, Yoshiro Tajitsu, Taizo Nishimoto, Kazuhiro Tanimoto, Kenichi Goto
  • Patent number: 8816018
    Abstract: A resin composition which comprises a polyester and is free from a smell produced from a free isocyanate compound. The resin composition comprises a polyester (component A) whose end is modified and a compound including a cyclic structure having one carbodiimide group whose first nitrogen and second nitrogen are bonded together by a bond group (component B).
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: August 26, 2014
    Assignee: Teijin Limited
    Inventors: Shinichiro Shoji, Hirotaka Suzuki
  • Patent number: 8802738
    Abstract: The invention relates to polymers, such as aliphatic polyesters, with grafted zwitterions. More particularly, the invention relates to polyester-graft-phosphorylcholine polymers prepared by ring-opening polymerization and click chemistry, compositions and products comprising same, and related methods and uses, for example, in drug delivery.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 12, 2014
    Assignee: University of Massachusetts
    Inventor: Todd Emrick
  • Patent number: 8802121
    Abstract: Silane-functionalized hydrophobic ?(1?4)glucopyranose polymers and polymeric matrices are described. Biodegradable matrices can be formed from hydrophobic ?(1?4)glucopyranose polymers with reactive pendent silyl ether groups. Reaction of the silyl ether groups provides improved matrix formation through bonding to a device surface of a device, polymer-polymer crosslinking, or both. Biodegradable matrices can be used for the preparation of implantable and injectable medical devices, including those that release a bioactive agent.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: August 12, 2014
    Assignee: Surmodics, Inc.
    Inventors: Aleksey V. Kurdyumov, Nathan A. Lockwood, Joram Slager, Dale G. Swan, Robert Hergenrother
  • Patent number: 8796396
    Abstract: A polylactic acid has a terminal-modified structure represented by the following formula (1): wherein in the formula (1), R represents a residue of an organic phosphorus compound containing an epoxy group, and n represents an integer from 100 to 5000.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: August 5, 2014
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Masaya Ikuno
  • Patent number: 8791228
    Abstract: Process for bulk polymerization of lactide at a temperature between 160° C. and 195° C. in the presence of a zinc-based catalyst.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: July 29, 2014
    Assignee: Futerro S.A.
    Inventor: Sabine Sirol
  • Publication number: 20140193742
    Abstract: To provide: a block copolymer that exhibits excellent proton conductivity even under low-humidification conditions, exhibits excellent mechanical strength and chemical stability, and when used in a polymer electrolyte fuel cell, allows high output and excellent physical durability; a polymer electrolyte material; and a polymer electrolyte form article and a polymer electrolyte fuel cell, using the same. The block copolymer of the present invention includes each one or more of: a segment (A1) containing an ionic group; a segment (A2) not containing an ionic group; and a linker moiety connecting the segments. The segment (A1) containing an ionic group comprises a constituent unit represented by a specific structure. The polymer electrolyte material, the polymer electrolyte form article, and the polymer electrolyte fuel cell according to the present invention are manufactured by using the above block copolymer.
    Type: Application
    Filed: August 23, 2012
    Publication date: July 10, 2014
    Inventors: Daisuke Izuhara, Hiroaki Umeda, Emi Amano, Tomoyuki Kunita
  • Patent number: 8754173
    Abstract: The present invention relates to a process for the continuous production of polymer mixtures comprising: a) from 10 to 80% by weight of a biodegradable polyester (Q) composed of aliphatic or aliphatic and aromatic dicarboxylic acids and of aliphatic dihydroxy compounds, and b) from 20 to 90% by weight of one or more polymers (T) selected from the group consisting of: polylactic acid, polycaprolactone, polypropylene carbonate, polyglycolide, aliphatic polyester, cellulose acetate, and polyhydroxyalkanoate, where i) a mixture composed of the aliphatic dihydroxy compounds, of the aliphatic and aromatic dicarboxylic acids and, if appropriate, of further comonomers (component C) is mixed, without addition of any catalyst, to give a paste or, as an alternative, the liquid esters of the dicarboxylic acids are fed into the system, as also are the dihydroxy compound and, if appropriate, further comonomers, without addition of any catalyst, and in a first stage this mixture, together with the entire amount or with a
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: June 17, 2014
    Assignee: BASF SE
    Inventors: Robert Loos, Uwe Witt, Motonori Yamamoto, Günther Mair, Andreas Garbe
  • Publication number: 20140163127
    Abstract: The present disclosure relates to the preparation of acrylate, alkacrylate, allyl, and polycarbonate derivatives of hydroxy ketal esters, and uses thereof.
    Type: Application
    Filed: November 1, 2013
    Publication date: June 12, 2014
    Applicant: SEGETIS, INC.
    Inventors: Sergey SELIFONOV, Brian Daniel MULLEN, Douglas Alan WICKS, Vivek BADARINARAYANA
  • Patent number: 8748543
    Abstract: The polylactic acid film is obtained by melt extruding polylactic acid (A) prepared by melt kneading together polylactic acid (B) which comprises an L-lactic acid unit as the main ingredient and polylactic acid (C) which comprises a D-lactic acid unit as the main ingredient in a specific weight ratio, wherein the polylactic acid film has: (a) a stereocomplex crystal rate (S) defined by the following equation (i) of 90% or more: S={(?Hmsc/(?Hmsc+?Hmh)}×100??(i) (in the above equation, ?Hmh is the melting enthalpy of a low-melting point crystal melting peak at a temperature lower than 190° C. obtained by differential scanning calorimeter (DSC) measurement and ?Hmsc is the melting enthalpy of a high-melting point crystal melting peak at a temperature of 190° C. or higher obtained by DSC measurement), (b) a haze of 10% or less, and (c) a haze change of 5% or less after it is heated at 140° C. for 10 minutes.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: June 10, 2014
    Assignee: Teijin Limited
    Inventors: Shigeyoshi Masuda, Kohei Endo, Kinji Hasegawa
  • Publication number: 20140135453
    Abstract: Provided is a method for a poly(GAP-co-THF)diol prepolymer in which THF monomer units are copolymerized to GAP, having high difunctionality, a reduced amount of cyclic oligomer side products having a small molecular weight, a wide copolymer composition and controlled molecular weight. The resulted poly(GAP-co-THF)diol prepolymer according to the present invention is used as a binder for a high-energy PBX or composite propellant, specifically used as a binder in the preparation of polyurethane having excellent mechanical properties.
    Type: Application
    Filed: May 15, 2013
    Publication date: May 15, 2014
    Applicant: Agency For Defense Development
    Inventors: Bum Jae Lee, In Joo Bae, Jin Seuk Kim, Seung Hee Kim
  • Patent number: 8722814
    Abstract: Polyglycerol carboxylic acid esters are made by reaction of a, typically C2 to C30, particularly C6 to C22, carboxylic acid with glycerol carbonate, particularly with base catalyst, and desirably at temperatures from 170° C. to 250° C. Other carbonates e.g. cyclic diol carbonates such as ethylene or propylene carbonates, may be used in combination with the glycerol carbonate to make novel mixed polymeric esters. The molar ratio of carboxylic acid group to glycerol carbonate is typically from 2 to 30, but can be up to 100. The base catalyst is desirably alkali metal hydroxide, carbonate or alkoxide. The reaction is desirably carried out in an inert atmosphere, and reducing agent such as phosphorous acid, hypophosphorous acid or borohydride and/or activated carbon, may be included to improve product color.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: May 13, 2014
    Assignee: Croda International PLC
    Inventors: Hanamanthsa Shankarsa Bevinakatti, Alan Geoffrey Waite, Jackie Frank
  • Patent number: 8722032
    Abstract: The present invention provides water-soluble, polymer derivatives having a thiol-selective terminus suitable for selective coupling to thiol groups, such as those contained in the cysteine residues of proteins, as well as methods for preparing the water-soluble, polymer derivatives having a thiol-selective terminus.
    Type: Grant
    Filed: November 19, 2012
    Date of Patent: May 13, 2014
    Assignee: Nektar Therapeutics
    Inventors: Antoni Kozlowski, Remy F. Gross, III, Samuel P. McManus