Metal Hydroxide Patents (Class 525/369)
  • Patent number: 10899955
    Abstract: Emulsions, treatment fluids and methods for treating subterranean formations are provided, wherein the emulsions comprise water, a water-immiscible liquid, one or more polymers, one or more ethoxylated amine compounds and optionally, one or more organic or inorganic salts. The emulsions are particularly suitable for use in harsh brine conditions.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: January 26, 2021
    Assignee: Kemira OYJ
    Inventors: Paul Waterman, Logan Jackson, Danny Nguyen, Ronald Robinson
  • Patent number: 9597293
    Abstract: The present invention provides a solid dosage form including an inner coating located between a core containing a pharmaceutically active ingredient and an outer enteric coating; wherein the inner coating includes a partially neutralized anionic polymeric material, and at least a carboxylic acid having 2 to 16 carbon atoms the salts thereof or mixtures of the acid and its salt; wherein the outer coating includes an anionic polymeric material which is less or not at all neutralized than the material of the inner coating.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: March 21, 2017
    Assignee: EVONIK RÖHM GmbH
    Inventors: Fang Liu, Abdul W. Basit, Rosario Lizio, Hans-Ulrich Petereit, Christian Meier, Michael Damm
  • Patent number: 9079151
    Abstract: Embodiments of the disclosed technology provide an electronic ink microcapsule and a method for producing the same, wherein the electronic ink microcapsule comprises gelatin, polyanion, and an electrophoretic suspension, and the polyanion comprises a hydrolyzate of styrene-maleic anhydride-hexafluorobutyl (meth)acrylate-vinyl triethoxysilane tetracopolymer.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: July 14, 2015
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Shi Shu, Ming Zhao, Jianshe Xue, Xiaoxiong Tian, Wenwen Sun
  • Publication number: 20150144556
    Abstract: The antiscalant compound is a dianionic polyelectrolyte (DAPE), namely, poly[disodium 3-(N,N-diallylamino)propanephosphonate]. The cationic polyelectrolyte (CPE) polydiallyl(diethylphosphonato)propylammonium chloride is synthesized by cyclopolymerization of the monomer. The CPE contains a pendant having a three-carbon spacer separating the diethylphosphonate and NH+. Upon acidic hydrolysis of the phosphonate esters, the CPE was converted into a pH-responsive polyzwitterionic acid (PZA), poly[3-(N,N-diallylammonio)propanephosphonic acid], which was converted to DAPE poly[disodium 3-(N,N-diallylamino)propanephosphonate] and to a zwitterionic/anionic polyelectrolyte (ZAPE) poly[sodium 3-(N,N-diallylammonio)propanephosphonate]. The solution properties of the polymers were correlated to the structurally similar polyzwitterion (PZ) having monoethylphosphonate and NH+ groups.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 28, 2015
    Applicants: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY, KING FAHD UNIVERSITY OF PETROLEUM AND MENERALS
    Inventors: SHAIKH ASROF ALI, IZZAT WAJIH KAZI, FAIZUR RAHMAN
  • Publication number: 20140350192
    Abstract: Methods of forming polymer layers on polymer surfaces using surface initiated atom-transfer radical-polymerization (ATRP) are described. The method can include functionalization steps prior to performing surface initiated ATRP, such as hydroxylation steps and/or halogenation steps. The hydroxylation step can be carried out in a solution including potassium persulfate, ammonium persulfate, or lithium hydroxide. The halogenation step can also be carried out in a solution. The methods described herein can be performed on bundles of hollow polymer fibers, including bundles of hollow polymer fibers mounted in a module.
    Type: Application
    Filed: March 24, 2014
    Publication date: November 27, 2014
    Inventors: Joseph Victor Alexander, Eric Anderson Grulke
  • Patent number: 8883961
    Abstract: The invention relates to a process for producing water-absorbing polymer particles, comprising thermal postcrosslinking in a contact dryer having external heated outer surfaces.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: November 11, 2014
    Assignee: BASF SE
    Inventors: Monte Peterson, Filip Mees, John Perry Guentzel, Justin Martin, Dominicus van Esbroeck, Karl J. Possemiers, Leo Van Miert, Oskar Stephan, Rüdiger Funk, Matthias Weismantel
  • Publication number: 20140178609
    Abstract: Provided is a polyoxyalkylene modified vinyl alcohol-based polymer comprising a polyoxyalkylene group in a side chain, wherein the polymer has a viscosity average degree of polymerization of not less than 150 and not more than 5000, a degree of saponification of not less than 40 mol % and not more than 99.99 mol %, and a polyoxyalkylene group modification rate of not less than 0.05 mol % and not more than 10 mol %; and the polyoxyalkylene group is composed of a polyoxypropylene block and a (poly)oxyethylene block and is represented by the following general formula (I). Such polymer is excellent in temperature-sensitive thickening properties. (in the general formula (I), R1 denotes a hydrogen atom or an alkyl group having a carbon number of from 1 to 8; either one of R2 and R3 is a methyl group and the other is a hydrogen atom; and 10?m?40 and 1?n?50).
    Type: Application
    Filed: July 19, 2012
    Publication date: June 26, 2014
    Applicant: KURARAY CO., LTD.
    Inventors: Masako Kawagoe, Shinsuke Nii, Kazuki Tokuchi, Masato Nakamae
  • Publication number: 20140135452
    Abstract: Provided herein are vinyl ether end-functionalized polyolefins and methods for producing the same.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 15, 2014
    Applicant: UNIVERSITY OF SOUTHERN MISSISSIPPI
    Inventors: Robson F. Storey, David L. Morgan
  • Patent number: 8623966
    Abstract: In a process for preparing cationic or amphoteric (co)polymers derived from acrylamide by a Hofmann degradation reaction in aqueous solution in the presence of an alkali and/or alkaline-earth metal hydroxide and an alkali metal hypohalide on a base copolymer, a solution of base copolymer on which the reaction is performed contains a polyvalent cationic salt representing at least 0.5% by weight, preferably from 2 to 10% by weight of the base copolymer.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: January 7, 2014
    Assignee: S.P.C.M. SA
    Inventors: René Hund, Christophe Auriant
  • Publication number: 20130303709
    Abstract: Process for reducing thermally induced discoloration of fluoropolymer resin produced by polymerizing fluoromonomer in an aqueous dispersion medium to form aqueous fluoropolymer dispersion and isolating said fluoropolymer from said aqueous medium to obtain said fluoropolymer resin. The process comprises: adjusting the pH of the aqueous medium of the aqueous fluoropolymer dispersion to greater than about 8.5; and exposing said aqueous fluoropolymer dispersion to an oxygen source.
    Type: Application
    Filed: May 2, 2013
    Publication date: November 14, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Paul Douglas Brothers, Gregory Allen Chapman, Subhash Vishnu Gangal, Dipti Dilip Khasnis
  • Patent number: 8575267
    Abstract: A process for the hydrolysis of polymers comprising vinylcarboxamide units by heating polymers comprising vinylcarboxamide units in an aqueous medium in the presence of acids or bases, wherein an aqueous solution or dispersion of a polymer comprising vinylcarboxamide units and an aqueous solution or a base or acid are fed continuously to a tubular reactor at elevated pressure, from 0.05 to less than one equivalent of a base or acid being used per vinylcarboxamide equivalent and the mixture being passed through the tubular reactor at a temperature of >100° C. to 250° C., depressurized and cooled.
    Type: Grant
    Filed: November 2, 2009
    Date of Patent: November 5, 2013
    Assignee: BASF SE
    Inventors: Manfred Winter, Hagen Weigl, Hans-Joachim Haehnle, Andreas Kramer
  • Patent number: 8541511
    Abstract: The invention relates to an amphiphilic block copolymer having an increased speed of water adsorption. The non-water soluble copolymer, having a hydrophilic middle block and hydrophobic endblocks, has a high rate water transmission and/or permeation. The increase in rate is due to neutralization, or partial neutralization of the hydrophilic block of the copolymer. Furthermore, the absorption rate can be controlled by the extent of the neutralization. Another aspect of the invention is the use of co-monomers and/or additives to further increase or tailor the water absorption properties. The use of additives and comonomers is also shown to enhance the processability of the disclosed polymer composition.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: September 24, 2013
    Assignee: Arkema Inc.
    Inventors: Scott C. Schmidt, Noah E. Macy, Jean-Pierre Disson
  • Patent number: 8461268
    Abstract: A golf ball material composed of (A) an oxygen-containing inorganic metal compound in the form of a particulate or a master batch capable of neutralizing at least some of the acid groups in an acid-containing polymer blend, (B) one or more polymer selected from among diene polymers, thermoplastic polymers and thermoset polymers, and (C) an acid-containing polymer is prepared by mixing component A in a blend of components B and C. The golf ball material has a good heat resistance, flowability and processability, and can be used to produce high-performance golf balls having durability, scuff resistance and optimal hardness without a loss of rebound.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: June 11, 2013
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Yoshinori Egashira, Eiji Takehana
  • Patent number: 8330045
    Abstract: The invention discloses a fire-resistant wire or cable comprising a conductor wiring and a fire-resistant organic/inorganic composite as an insulation layer or an outer sheath. The organic/inorganic composite comprises an organic component of a polymer, oligomer, or copolymer having a first reactive functional group; and inorganic particles having a second reactive functional groups. The inorganic particles are chemically bonded to the organic component via a reaction between the first and the second reactive functional groups.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: December 11, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Yung-Hsing Huang, Chih-Ming Hu
  • Patent number: 8329819
    Abstract: The invention discloses a fire-resistant composite comprising inorganic particles well dispersed in a polymer, oligomer or copolymer having reactive functional groups. The inorganic particles also contain reactive functional groups, originally or after surface modification, that can react with the corresponding reactive functional groups of the organic component to form organic/inorganic composite materials. When the composite material is burned or exposed to fire, the organic component forms a char layer and the inorganic particles radiate absorbed heat. The inorganic particles also strengthen the mechanical properties of the structure through the reaction between inorganic and organic materials. The invention also discloses a fire-resistant plate containing the organic/inorganic component.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: December 11, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Yung-Hsing Huang, Chih-Ming Hu, Che I. Kao
  • Patent number: 8329820
    Abstract: A fire-resistant coating material comprising an organic/inorganic composite is disclosed. The organic/inorganic composite includes an organic component of polymer, monomer, oligomer, prepolymer, or copolymer having a first reactive functional group; inorganic particles; and optional additives. The inorganic particles possess a second reactive functional group, originally or after surface modification, which react with the first reactive functional group of the organic component to form chemical bonds. The organic/inorganic composite can be with admixed with a suitable continuous phase, depending on the type of the organic component, to provide a fire-resistant coating material.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: December 11, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Ming Hu, Yung-Hsing Huang, Che I Kao
  • Publication number: 20120220730
    Abstract: A high melt strength polypropylene is formed using maleated polypropylene and a combination of coupling agents and acid neutralizers. The maleated polypropylene can be formed using multi-functional monomers. The high melt strength polypropylene can be useful for foaming, sheet extrusion thermoforming, extrusion blow molding, extrusion coating, fiber, film, and the like.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 30, 2012
    Applicant: Fina Technology, Inc.
    Inventors: Fengkui Li, John Ashbaugh, David Rauscher, Robert Dotter
  • Patent number: 8247157
    Abstract: The present disclosure provides processes for increasing the shelf life and stability of resin emulsions suitable for use in forming toner particles. In embodiments, the pH of the resin emulsion is monitored, and a base is added as needed to maintain the pH of the emulsion at from about 6.5 to about 8. Maintaining the pH at from about 6.5 to about 8 prevents the degradation of the resin in the emulsion, including its molecular weight.
    Type: Grant
    Filed: December 9, 2008
    Date of Patent: August 21, 2012
    Assignee: Xerox Corporation
    Inventors: Kimberly D. Nosella, Enno E. Agur, Shigang Qiu, Ke Zhou
  • Publication number: 20120202952
    Abstract: The present invention relates to a process for producing water-absorbing polymer particles, wherein an aqueous monomer solution is polymerized and the monomer solution is prepared using steam condensate.
    Type: Application
    Filed: October 5, 2010
    Publication date: August 9, 2012
    Inventors: Rüdiger Funk, Jürgen Schröder
  • Patent number: 8211984
    Abstract: Provided are a ring-opening metathesis polymer and a hydrogenated product thereof that are useful as materials for an optical component, and a method for preparation thereof. The present invention relates to a ring-opening metathesis polymer comprising at least repeating structural units [A] represented by the following General Formula [1] and repeating structural units [B] represented by the following General Formula [2] at a constitutional molar ratio [A]/[B] of 0.1/99.9 to 100/0. The present invention relates to a ring-opening metathesis polymer comprising at least repeating structural units [A] represented by the following General Formula [1] and repeating structural units [B] represented by the following General Formula [2] at a constitutional molar ratio [A]/[B] of 0.1/99.9 to 100/0.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: July 3, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tadahiro Sunaga, Yuichi Okawa, Takashi Ochiai, Keiichi Ikeda
  • Publication number: 20120132382
    Abstract: Cationic or amphoteric (co)polymer obtained by Hofmann degradation reaction, in aqueous solution, in the presence of an alkaline-earth and/or alkali metal hydroxide and of an alkaline-earth and/or alkali metal hypohalide, on a base (co)polymer comprising at least one nonionic monomer chosen from the group comprising acrylamide (and/or methacrylamide) and N,N-dimethylacrylamide, is characterized in that the base (co)polymer is modified beforehand with at least one polyfunctional compound containing at least 3 heteroatoms chosen from N, S, O and P and each having at least one mobile hydrogen. Use as a flocculation, retention and/or drainage aid, and dry strength aid is contemplated.
    Type: Application
    Filed: August 3, 2010
    Publication date: May 31, 2012
    Applicant: S.P.C.M. SA
    Inventors: René Hund, Christophe Auriant
  • Publication number: 20120118832
    Abstract: An ionic polymer of formula VI wherein each b=0 or 1; X is hydrogen, 1/z of a metal ion of charge z, a protonated nitrogen base, or a tetrasubstituted organic ammonium compound; the molar ratio of q:r:s:t=(100-0.1):(0-99.9):(0-50):(0-30); R1, R2 and R3 are hydrogen or C1-4 alkyl; R4, R5, R6 and R7 are hydrogen, C1-4 alkyl or F, wherein F is a functional group that imparts a property to polymer VI, at least one and no more than two of R4, R5, R6 and R7 are F and F is the same or different; G is a single bond or a C1-30 hydrocarbyl group; and for each instance of t when t is not zero, c=0-5 and d=0-5, provided that c+d=1-5, and wherein q, r and s as present in c are independent of any other value of q, r and s.
    Type: Application
    Filed: November 11, 2011
    Publication date: May 17, 2012
    Applicant: SEGETIS, INC.
    Inventors: Dorie J. Yontz, Brian D. Mullen, Cora M. Leibig, Marc D. Rodwogin, Vivek Badarinarayana, Feng Jing, Friederike T. Stollmaier
  • Publication number: 20110263796
    Abstract: In a process for preparing cationic or amphoteric (co)polymers derived from acrylamide by a Hofmann degradation reaction in aqueous solution in the presence of an alkali and/or alkaline-earth metal hydroxide and an alkali metal hypohalide on a base copolymer, a solution of base copolymer on which the reaction is performed contains a polyvalent cationic salt representing at least 0.5% by weight, preferably from 2 to 10% by weight of the base copolymer.
    Type: Application
    Filed: March 18, 2009
    Publication date: October 27, 2011
    Applicant: S.P.C.M. SA
    Inventors: René Hund, Christophe Auriant
  • Patent number: 7781536
    Abstract: It is an object of the present invention to provide an ocular lens superior in the wettability of the surface thereof, hydrating properties, oxygen permeability, flexibility, elasticity, transparency and shape recoverability though it has a composition using a silicone-containing monomer. The present invention relates to a highly oxygen-permeable hydrated ocular lens obtained by saponifying a copolymer prepared from a specific both-terminal (meth)acryl polydimethylsiloxane, a vinyl carboxylate, a (meth)acrylamide type monomer, a vinyl type crosslinking agent, one or both of a (meth)acrylate having a tertiary structure and a (meth)acrylate having a cyclic structure as (meth)acrylates each having a bulky structure at its side chain and a monomer copolymerizable with these compounds.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: August 24, 2010
    Assignee: Seed Co., Ltd.
    Inventors: Takehisa Kamiya, Kazunori Kobayashi, Kenji Uno
  • Patent number: 7683135
    Abstract: The present invention provides an ethylene-vinyl alcohol based copolymer (EVOH) having fundamentally improved thermal stability. The EVOH is characterized in that the proportion of ethylene units (III) is from 20 to 60 mole % with respect to the total (III+IV+V) of ethylene units (III), vinyl alcohol units (IV), and vinyl ester units (V), and the proportion of the total (I+II) of carboxylic acids units (I) and lactone ring units (II) in copolymer terminals with respect to the total (III+IV+V) is 0.12 mole % or less. The EVOH can be obtained by, for example, contacting a reducing agent with an ethylene-vinyl ester based copolymer before saponification and/or EVOH after saponification.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: March 23, 2010
    Assignee: Kuraray Co., Ltd.
    Inventors: Naohiko Uchiumi, Takashi Wakui
  • Publication number: 20100056303
    Abstract: The invention provides a golf ball material composed of an ionomeric resin composition obtained by melt-blending under applied heat one or more compounds selected from among UV/EB-curable materials with, in the presence of a peroxide, a non-ionomeric thermoplastic resin and an ionomeric resin; or of an ionomeric resin composition obtained by using, instead of the ionomeric resin, an acid-containing polymer base of the ionomeric resin and subjecting the acid-containing polymer composition similarly prepared by melt-blending under applied heat to an acid-neutralizing reaction with a metal ionic species. Methods for preparing such a material, and golf balls which include as a component therein a molding made of the golf ball material are also provided. The golf ball material has a good thermal stability, flow and processability, and can thus be used to obtain high-performance golf balls endowed with an excellent abrasion resistance, scuff resistance, durability and flexibility without a loss of rebound.
    Type: Application
    Filed: August 27, 2008
    Publication date: March 4, 2010
    Applicant: Bridgestone Sports Co, Ltd.
    Inventors: Yoshinori EGASHIRA, Jun Shindo, Eiji Takehana, Hiroyuki Nagasawa
  • Patent number: 7645836
    Abstract: A reactive extrusion process for producing an ionomer is disclosed. The process comprising adding a polymer containing a carboxyl functionality to an extruder, then homogenously melting the polymer in a melting zone of the extruder. A first melt seal zone of the extruder is formed to separate the melting zone from an injection zone where an aqueous solution of metallic ions are added to the molten polymer. The first melt seal zone is formed by increasing the pressure in the melt seal zone to a pressure which is higher than the vapor pressure of the water at any point in the injection zone and the reaction zone. The aqueous solution of metallic ions is then mixed with the polymer containing the carboxyl functionality in a reaction zone of the extruder under conditions such that the metallic ions are substantially reacted with the carboxyl functionality.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: January 12, 2010
    Assignee: Dow Global Technologies, Inc.
    Inventors: Brian W. Walther, Anthony C. Neubauer, Eung Kyu Kim, Calvin Lee Pavlicek, Charles F. Diehl
  • Publication number: 20090200272
    Abstract: An arc-extinguishing processed resin article is disclosed that exhibits an excellent arc-extinguishing behavior, heat resistance, pressure resistance, and molding processability, and a circuit breaker that uses this arc-extinguishing processed resin article are provided. The circuit breaker includes a stationary contactor that has a stationary contact point, a movable contactor that has a movable contact point contacting the stationary contactor and that carries out a switching operation with the stationary contactor, and an arc-extinguishing device that extinguishes the arc generated when the stationary contactor and movable contactor engage in a switching operation. The circuit breaker uses, as the arc-extinguishing device, an arc-extinguishing processed resin article obtained by molding a resin composition containing (A) polyolefin resin that has the hydroxyl group substituted for a portion of the hydrogen atoms in the methylene chain and that contains 0.2 to 0.
    Type: Application
    Filed: February 6, 2009
    Publication date: August 13, 2009
    Applicant: FUJI ELECTRIC FA COMPONENTS & SYSTEMS CO., LTD.
    Inventors: Toshiyuki KANNO, Hironori YANASE, Syuichi SUGIYAMA
  • Patent number: 7514505
    Abstract: A golf ball material composed of (A) an oxygen-containing inorganic metal compound in the form of a particulate or a master batch capable of neutralizing at least some of the acid groups in an acid-containing polymer blend, (B) one or more polymer selected from among diene polymers, thermoplastic polymers and thermoset polymers, and (C) an acid-containing polymer is prepared by mixing component A in a blend of components B and C. The golf ball material has a good heat resistance, flowability and processability, and can be used to produce high-performance golf balls having durability, scuff resistance and optimal hardness without a loss of rebound.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: April 7, 2009
    Assignee: Bridgestone Sports Co., Ltd.
    Inventors: Yoshinori Egashira, Eiji Takehana
  • Patent number: 7476712
    Abstract: The invention is directed to a film which comprises a poly(carboxylic acid) polymer and a polyvalent metal compound, which is endowed with excellent gas barrier property against, for example oxygen, which has such resistance that the appearance, shape, and gas-barrier properties are not impaired by neutral water, high-temperature water vapor, or hot water; a laminate produced by use of the film; and a process for producing the film or laminate industrially conveniently at low cost. The film or laminate of the present invention is suitable for use as a package, packaging container, or vacuum insulation material for articles which are apt to be deteriorated by oxygen, etc., such as foods, beverages, chemicals, medicines, and metallic precision parts; e.g., electronic parts.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: January 13, 2009
    Assignee: Kureha Corporation
    Inventors: Hideaki Tanaka, Hiroyuki Oba, Masahiro Yamazaki, Tomohisa Hasegawa
  • Patent number: 7468414
    Abstract: To provide moisture absorptive and desorptive ultrafine particles having high moisture absorptive and moisture desorptive properties and particularly having an excellent moisture absorptive rate and also a product using said ultrafine particles. Moisture absorptive and desorptive ultrafine particles, characterized in that, the said particles consist of a cross-linked polymer containing 1.0 to 10.0 meq/g of a salt-type carboxyl group as a polar group where an average primary particle size is not more than 0.2 ?m and saturated moisture absorptive ratios at 65% RH and 90% RH at 20° C. are not less than 20% by weight and not less than 40% by weight, respectively.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: December 23, 2008
    Assignee: Japan Exlan Company Limited
    Inventor: Ryosuke Nishida
  • Patent number: 7314902
    Abstract: The present invention provides a hot-melt adhesive composition comprising a blend of: a reactive filler comprising an aluminum compound, a magnesium compound, a calcium compound, a barium compound or a mixture thereof; and, a grafted polyolefin having a functional group for reaction with the reactive filler. Such a hot-melt adhesive is particularly useful for bonding a polyolefin-based substrate to dissimilar materials such as metals, wood, ceramics and thermoset plastics.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: January 1, 2008
    Assignee: National Research Council of Canada
    Inventors: Minh-Tan Ton-That, Johanne Denault, Marie Gundjian
  • Patent number: 7312281
    Abstract: An anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity comprising the steps of polymerization, purification, transesterification, purification, catalyst removal, and solvent exchange. The resultant polymer in solution can be used directly, without further processing steps, to prepare a photoresist composition.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: December 25, 2007
    Assignee: DuPont Electronic Polymers L.P.
    Inventors: Michael T. Sheehan, James R. Sounik
  • Patent number: 7279530
    Abstract: A fluororubber composition includes a polyol-crosslinkable fluororubber, a crosslinking accelerator, a polyol crosslinking agent and calcium hydroxide, with the crosslinking accelerator having a specific weight ratio relative to the polyol crosslinking agent, and is heat treated under specific conditions to give a low-friction fluororubber crosslinked product that is well balanced and excellent in properties such as low frictional properties, low tackiness and low resilience properties and that is favorably employed as rubber vibration insulators and impact-absorbing stoppers represented by HDD stoppers.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: October 9, 2007
    Assignee: NOK Corporation
    Inventors: Toshihiro Higashira, Hiroyuki Sano, Kenichi Fujimoto
  • Patent number: 7166645
    Abstract: The alkaline saponification of acrylonitrile bead polymers provides weakly acidic cation exchangers with little intrinsic color and with reduced residual nitrogen content if the saponification is begun at a temperature T1 of from 70 to 120° C. and, once a degree of saponification of at least 65% has been reached, is completed at a temperature T2 of from 120 to 180° C.
    Type: Grant
    Filed: April 21, 2004
    Date of Patent: January 23, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Michael Happ, Dieter Irmscher, Wolfgang Podszun, Rudiger Seidel, Wolfgang Zarges
  • Patent number: 7151141
    Abstract: To a fluorine-containing polymer, 0.1 to 10% of a compound having an alkali metal or an alkaline earth metal in terms of the number of atoms of the alkali metal or the alkaline earth metal based on the total number of the above terminal groups, 0.1 to 10% of ammonia in terms of the number of ammonia molecules based on the total number of the above terminal groups, or 0.1 to 10% of a compound having an ammonium group in terms of the number of the ammonium groups based on the total number of the above terminal groups is added, and heated at a temperature of at least 200° C. in an atmosphere containing moisture. By this process, unstable terminal groups such as terminal carboxylic acid groups and coloration caused by such terminal groups are effectively removed from the fluorine-containing polymer, and furthermore unstable bonds in the backbones can be removed. The obtained fluorine-containing polymer contains 1.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: December 19, 2006
    Assignee: Daikin Industries Ltd.
    Inventors: Yoshiyuki Hiraga, Satoshi Komatsu, Tomohisa Noda, Masayuki Namimatsu, Hiroyuki Imanishi
  • Patent number: 7037949
    Abstract: A reactive liquid is coated on an ion exchange resin precursor membrane for the hydrolysis treatment. Preferably, a reactive liquid having a viscosity of not lower than 50 mPa·s or a small surface tension is used. Said precursor membrane is also subjected to the hydrolysis treatment under constraint, while the precursor membrane is maintained in a widened or a stretched state.
    Type: Grant
    Filed: February 7, 2002
    Date of Patent: May 2, 2006
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Naoto Miyake, Takuya Hasegawa
  • Patent number: 7030193
    Abstract: The present invention relates to a polymer composite containing at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound, at least one polyhalogenated hydrocarbon, optionally at least one filler and optionally at least one cross-linking agent, a process for preparing said polymer composite wherein at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound, at least one polyhalogenated hydrocarbon, optionally at least one filler and optionally at least one cross-linking agent are mixed and a shaped article containing diester bridges formed by reaction of at least one carboxylated nitrile rubber polymer, that is optionally hydrogenated, at least one basic compound and at least one polyhalogenated hydrocarbon.
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: April 18, 2006
    Assignee: Bayer Inc.
    Inventors: Frederic Guerin, Carl Walter Von Hellens, Sharon X. Guo
  • Patent number: 6919411
    Abstract: A process for producing a polymer compound having a double bond in a side chain, wherein a functional group represented by the following formula (1) is subjected to an elimination reaction to form the polymer compound which includes another functional group having the double bond in the side chain thereof represented by the following formula (2): wherein, in the formulae, A1 represents an oxygen atom, a sulfur atom or —N(R4)—; R1, R2, R3 and R4 each independently represent a hydrogen atom or a monovalent organic group; and X1 and Z1 each represent a group that is removable by the elimination reaction.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: July 19, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazuhiro Fujimaki
  • Patent number: 6911512
    Abstract: Provided is a composition comprising an aromatic material selected from a polythiol aromatic compound or resin, a hydroxythiophenol compound or resin, a catechol novolak resin, a catechol cresol novolak resin, a polyhydroxy aromatic resin or compound comprising at least one aromatic ring having at least one hydroxyl group attached directly to the aromatic ring wherein at least one hydroxyl group is a phenolate salt, or a combination thereof, and a salt former compound capable of forming a salt with the aromatic material, a fluoropolymer, and optionally a phase transfer catalyst. Also provided are articles comprising powder-coated fluoropolymers with aromatic compounds, and methods for making the compositions and articles.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: June 28, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Lisa P. Chen, Jeffrey T. Anderson, Thomas J. Blong, Justin A. Riddle, Blake E. Chandler
  • Patent number: 6884851
    Abstract: Process for producing polyolefins, comprising the following steps: a) grafting of acid groups onto polyolefins by means of a graftable monomer bearing at least one functional group chosen from a carbonyl and an acid anhydride, optionally in the presence of another graftable monomer bearing a vinyl unsaturated group and, optionally, one or more aromatic rings; b) purification, consisting in removing at least some of the graftable monomer bearing at least one functional group chosen from a carbonyl and an acid anhydride that has not reacted with the polyolefins; c) neutralization of the acid groups by at least one neutralizing agent. Polyolefin obtained.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: April 26, 2005
    Assignee: Solvay (Societe Anonyme)
    Inventor: Fernand Gauthy
  • Patent number: 6864324
    Abstract: An anhydrous, liquid phase process for preparing hydroxyl containing polymers of enhanced purity comprising the steps of polymerization, purification, transesterification, purification, catalyst removal, and solvent exchange. The resultant polymer in solution can be used directly, without further processing steps, to prepare a photoresist composition.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: March 8, 2005
    Assignee: Chem First Electronic Materials L.P.
    Inventors: Michael T. Sheehan, James R. Sounik
  • Publication number: 20040242793
    Abstract: To a fluorine-containing polymer, 0.1 to 10% of a compound having an alkali metal or an alkaline earth metal in terms of the number of atoms of the alkali metal or the alkaline earth metal based on the total number of the above terminal groups, 0.1 to 10% of ammonia in terms of the number of ammonia molecules based on the total number of the above terminal groups, or 0.1 to 10% of a compound having an ammonium group in terms of the number of the ammonium groups based on the total number of the above terminal groups is added, and heated at a temperature of at least 200° C. in an atmosphere containing moisture. By this process, unstable terminal groups such as terminal carboxylic acid groups and coloration caused by such terminal groups are effectively removed from the fluorine-containing polymer, and furthermore unstable bonds in the backbones can be removed. The obtained fluorine-containing polymer contains 1.
    Type: Application
    Filed: July 1, 2004
    Publication date: December 2, 2004
    Applicant: Daikin Industries, Ltd.
    Inventors: Yoshiyuki Hiraga, Satoshi Komatsu, Tomohisa Noda, Masayuki Namimatsu, Hiroyuki Imanishi
  • Patent number: 6825284
    Abstract: A method for preparing a poly-&agr;-hydroxyacrylate aqueous solution, which comprises reacting a polylactone compound corresponding to poly-&agr;-hydroxyacrylic acid (hereinafter referred to as “PLAC”) with an alkali, wherein the alkali is added dividedly.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: November 30, 2004
    Assignee: Nippon Peroxide Co., Ltd.
    Inventors: Ryuichi Kayama, Toshio Suzuki
  • Patent number: 6797785
    Abstract: The invention relates to a process of synthesis at low temperature of polymers of the PVA (polyvinylamine) type on the basis the monomer vinylformamide. The polymerization claimed for the invention begins at around 0° C., is initiated by an original combination of redox and azoic catalysts, and is conducted under more or less normal pressure. The polymerization is conducted in water and is followed by direct hydrolysis. A powdered cationic PVA of high molecular weight is thereby obtained. The process may also be conducted in an emulsion at an initiation temperature of around 15° C. Application of PVAs as flocculants and coagulants in the paper, water treatment, petroleum and parapetroleum, and, similar industries.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: September 28, 2004
    Assignee: SNF S.A.
    Inventors: René Hund, Christian Jehn-Rendu
  • Patent number: 6777501
    Abstract: To a fluorine-containing polymer, 0.1 to 10% of a compound comprising an alkali metal or an alkaline earth metal in terms of the number of atoms of the alkali metal or the alkaline earth metal based on the total number of the above terminal groups, 0.1 to 10% of ammonia in terms of the number of ammonia molecules based on the total number of the above terminal groups, or 0.1 to 10% of a compound having an ammonium group in terms of the number of the ammonium groups based on the total number of the above terminal groups is added, and heated at a temperature of at least 2000C in an atmosphere containing moisture. By this process, unstable terminal groups such as terminal carboxylic acid groups and coloration caused by such terminal groups are effectively removed from the fluorine-containing polymer, and furthermore unstable bonds in the backbones can be removed. The obtained fluorine-containing polymer contains 1.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: August 17, 2004
    Assignee: Daikin Industries Ltd.
    Inventors: Yoshiyuki Hiraga, Satoshi Komatsu, Tomohisa Noda, Masayuki Namimatsu, Hiroyuki Imanishi
  • Patent number: 6730764
    Abstract: A concrete retarder comprises a polymer (A) having the concrete set retarding ability. The polymer (A) has, as a structural unit, a low glass transition temperature (Tg) component with a Tg of not higher than −5° C., and a surface tension of 45 mN/m or lower. The proportion of the low Tg component having a glass transition temperature (Tg) of not higher than −5° C. is 10% by weight or more relative to the whole polymer (A). The polymer (A) has a functional group which can form a salt with a metal ion (particularly, a free acid group or a group capable of forming an acid group by hydrolysis). The polymer (A) is a vinyl-series polymer, a polyester (saturated or unsaturated polyester), or a crosslinked or graft polymerized unsaturated polyester. A sheet and a decorative pack may be formed with the concrete retarder.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: May 4, 2004
    Assignee: Daicel Huels Ltd.
    Inventors: Toru Ikuta, Mitsuteru Mutsuda
  • Patent number: 6683143
    Abstract: The present invention is directed to ion-sensitive, water-dispersible polymers. The present invention is also directed to a method of making ion-sensitive, water-dispersible polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising ion-sensitive, water-dispersible binder compositions and their applicability in water-dispersible personal care products.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: January 27, 2004
    Assignee: Kimberly Clark Worldwide, Inc.
    Inventors: Pavneet S. Mumick, Yihua Chang, Franklin M. Chen, Frederick J. Lang, Kim G. Schick, Walter T. Schultz, William S. Pomplun, Dave A. Soerens, Kenneth Y. Wang
  • Patent number: 6680082
    Abstract: The present invention relates to neutralized copolymer resins having at least two different metals with one of the metals being zinc. These mixed metal resins are transformed into particulate or powder form for application to metal objects. The powder composition has a good balance of properties including all the advantages associated with neutralized ethylene acid copolymers while also having good powder coating behavior for coatings applied to metal objects. The invention also relates to coated metal objects containing the powder composition and metal.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: January 20, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard Tien-Hua Chou, Mark Bernard Kelly
  • Publication number: 20040006183
    Abstract: A method of removing protein from dipped latex rubber goods comprises: a) removing any corn starch powder which has previously been applied to the goods, by treating the goods with hot water to dissolve the powder; b) treating the goods with an aqueous solution comprising an alkali metal hydroxide to remove protein; and c) treating the goods with one or more surface active agents in aqueous solution to remove remaining protein.
    Type: Application
    Filed: July 21, 2003
    Publication date: January 8, 2004
    Inventors: Balanchandra Chakkinggal Sekhar, Gopinati Balachandra Sekhar