Elemental Metal Or Inorganic Metal Compound Patents (Class 525/367)
  • Patent number: 10005694
    Abstract: The present invention provides compositions useful as a replacement for cellulose ether in cement, plaster or mortar compositions comprising i) nonionic or substantially nonionic vinyl or acrylic brush polymers having pendant or side chain polyether groups, and having a relative weight average molecular weight of from 140,000 to 50,000,000 g/mole, and ii) aromatic cofactors containing one or more phenolic groups, such as catechol tannins, phenolic resins, polyphenolics, and napthhols or, in combination, one or more aromatic groups with at least one sulfur acid group, such as naphthalene sulfonate aldehyde condensate polymers, poly(styrene-co-styrene sulfonate) copolymers, and lignin sulfonates, preferably branched cofactors, including phenolic resins, aldehyde condensate polymers and lignin sulfonates. The compositions may comprise a dry powder blend of i) and ii), one dry powder of both i) and ii), or an aqueous mixture.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: June 26, 2018
    Assignees: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: Alvin M. Maurice, Thomas Oswald, Michael J. Radler, Hongwei Shen, Wei-Wen Tsai
  • Patent number: 9221700
    Abstract: This invention relates to an improved method for inhibiting the formation and deposition of silica and silicate compounds in a water system. In particular, the method includes adding to the water system a relatively low molecular weight organic, anionic polymer. The polymer preferrably has an acrylic acid or methacrylic acid functionality and is preferrably selected from one or more of homopolymers of acrylic acid, a methacrylic acid/polyethylene glycol allyl ether copolymer, a homopolymer of methacrylic acid, an acrylic acid/polyethylene glycol allyl ether copolymer, and an acrylic acid/1-allyloxy-2-hydroxypropane sulfonic acid copolymer, homopolymers of maleic anhydride, copolymers of maleic anhydride and polyethylene glycol allyl ether, and combinations thereof.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: December 29, 2015
    Assignee: Ecolab USA Inc.
    Inventors: Nathaniel T. Greene, Jasbir S. Gill, Martin R. Godfrey, Cheryl Williams
  • Publication number: 20140371399
    Abstract: The present invention relates to functionalized copolymers of isoolefins and olefinic monomers, particularly to azidated copolymers. The present invention also relates to methods of preparing such azidated copolymers. The functionalized copolymers are used in various technology areas such as surface modification, adhesion, drug delivery, compatibilization of polymer blends or motor oil and fuel additives, and in providing clean cured products without contaminant leaching and/or side products.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 18, 2014
    Inventors: Conrad Siegers, Dana Adkinson, Gregory J.E. Davidson, Lorenzo Ferrari, Mario Gauthier
  • Patent number: 8895673
    Abstract: The present invention relates to methods for preparing degradable model networks from any monomer functionality with any degradation methodology. It is based on the use of Atom-Transfer Radical Polymerization and CLICK chemistry to form the desired product.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: November 25, 2014
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Jeremiah Johnson, Jeffrey T. Koberstein, Nicholas J. Turro
  • Patent number: 8664340
    Abstract: An improved polymerization and work-up process makes it possible to produce specific nitrile rubbers which have a particular ion index which is responsible for an excellent vulcanization rate and leads to vulcanizates having an advantageous property profile.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: March 4, 2014
    Assignee: LANXESS Deutschland GmbH
    Inventor: Werner Obrecht
  • Publication number: 20130303708
    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: exposing the aqueous fluoropolymer dispersion to oxidizing agent selected from the group consisting of hypochlorite salts and nitrite salts.
    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, Adam Paul Smith
  • Patent number: 8563659
    Abstract: An improved polymerization and work-up process makes it possible to produce specific nitrile rubbers which have a particular ion index which is responsible for an excellent vulcanization rate and leads to vulcanizates having an advantageous property profile.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: October 22, 2013
    Assignee: LANXESS Deutschland GmbH
    Inventor: Werner Obrecht
  • Publication number: 20130197164
    Abstract: The present invention relates to methods for preparing degradable model networks from any monomer functionality with any degradation methodology. It is based on the use of Atom-Transfer Radical Polymerization and CLICK chemistry to form the desired product.
    Type: Application
    Filed: February 19, 2013
    Publication date: August 1, 2013
    Applicant: The Trustees of Columbia University in the City of New York
    Inventor: The Trustees of Columbia University in the City of New York
  • 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: 7981969
    Abstract: The invention concerns a process for producing water-absorbing polymer, which comprises a base polymer A being mixed with a first aqueous solution B of at least one surface postcrosslinker and a second aqueous solution C of at least one polyvalent cation and thermally treated, wherein said base polymer A is based on at least 50% neutralized acid-functional monomer and said solutions B and C are metered wholly or partly concurrently through separate nozzles whereby a water-absorbing polymer having a high saline flow conductivity value is obtained.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: July 19, 2011
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Riegel, Thomas Daniel, Matthias Weismantel, Mark Elliott, Dieter Hermeling
  • Patent number: 7767765
    Abstract: Process for modifying a polyolefin grafted with acid or anhydride groups, by at least partial neutralization of these groups with at least one neutralizing agent comprising an organic salt (1) that releases an organic acid (I) during the neutralization, according to which the organic acid (I) derived from the neutralization of the grafted polyolefin is reacted with at least one inorganic salt (2). Modified polyolefin (that can be) obtained by the process described above. Polymeric composition containing (A) at least one polymer, and (B) at least one modified polyolefin (that can be) obtained by the process above. Article comprising the modified polyolefin or the composition described above.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: August 3, 2010
    Assignee: Addcomp Holland BV
    Inventors: Henri Wautier, Fernand Gauthy, Dino Manfredi
  • Publication number: 20100179277
    Abstract: A novel vulcanizable polymer composition is provided which is characterized by a specific combination of a polyamine crosslinking agent, a particular crosslinking accelerator and an alkali metal salt. Further on polymer vulcanizates on the basis of such polymer compositions as well as a method for preparing such polymer vulcanizates is provided, in particular in the form of mouldings or shaped parts.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 15, 2010
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Matthias Soddemann, Christopher Ong, Sven Brandau
  • 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
  • Publication number: 20100010168
    Abstract: The present invention relates to a novel ?-nucleating agent and a process for preparing same. Preferably, the ?-nu-cleating agent is a water-free admixture of calcium carbonate and a calcium salt of a dibasic organic acid.
    Type: Application
    Filed: December 19, 2007
    Publication date: January 14, 2010
    Applicant: BOREALIS TECHNOLOGY OY
    Inventors: Johannes Wolfschwenger, Markus Gahleitner
  • 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
  • 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: 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: 7179865
    Abstract: This invention provides a method for purification of a vinyl polymer which comprises the atom transfer radical polymerization of a vinyl monomer using a transition metal complex as the polymerization catalyst, said vinyl polymer being brought into contact with an oxidizing agent or a reducing agent.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: February 20, 2007
    Assignee: Kaneka Corporation
    Inventors: Nao Fujita, Kenichi Kitano, Yoshiki Nakagawa
  • 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: 7138461
    Abstract: A molding material consisting of a fluorine-containing copolymer, which has a metal elution index ? of at most 10 as the total amount in ng of metals of Na, Mg, Cu, Cr, Ni, K, Ca and Fe per 1 g of the molding material, as obtained by elution analysis of the molding material with nitric acid.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: November 21, 2006
    Assignee: Asahi Glass Company, Limited
    Inventors: Atushi Funaki, Naoko Sumi, Teruo Takakura
  • Patent number: 7087681
    Abstract: A method to electrolytically polymerize aromatic hydrocarbons and oxidize cyclopentane structures within the hydrocarbons into cyclopentanone structures is disclosed including a method to electrolyze fluorene in the presence of an ester to produce poly(9-fluorenone). A method to electrolytically oxidize polymers having cyclopentane structures to polymers having cyclopentanone structures is also disclosed including a method to electrolyze poly(fluorene) to produce poly(9-fluorenone). In addition, a method to chemically oxidize polymers containing cyclopentane structures into polymers containing cyclopentanone structures is disclosed, including a method to oxidize poly(fluorene), with a chemically prepared oxidizing agent, to produce poly(9-fluroenone).
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: August 8, 2006
    Assignee: IM&T Research, Inc.
    Inventor: Teruo Umemoto
  • Patent number: 6914099
    Abstract: Superabsorbent polymers having reduced levels of residual monomer are produced using a peroxodisulfate salt.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: July 5, 2005
    Assignee: Dow Global Technologies Inc.
    Inventor: Young-Sam Kim
  • Patent number: 6903163
    Abstract: The present invention relates to high melt swell partially neutralized alpha olefin acid copolymers. It also relates to a process for making such high melt swell polymers as well as for covalently crosslinking other polar copolymers including non-neutralized acid copolymers and non-polar alpha olefin polymers by using a minor amount of metal acrylate, particularly sodium or zinc acrylate.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: June 7, 2005
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Richard James Powell, Richard T. Chou, George W. Prejean
  • 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: 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: 6736856
    Abstract: The invention provides a production method capable of reducing the amount of the chemical liquid (hydrazine and sodium carbonate, etc.) for applying a crosslinking treatment and a hydrolytic treatment, capable of shortening the treatment time, and capable of obtaining crosslinked acrylic moisture absorbing fibers having a sufficient moisture absorbing-moisture releasing performance and provides crosslinked acrylic moisture absorbing fibers. In the case of producing the crosslinked acrylic moisture absorbing fibers by applying a crosslinking treatment and a hydrolytic treatment to acrylic fibers, acrylic fibers made of a copolymer containing from 1 to 5% by weight a comonomer having an acidic group as a comonomer component are used as the raw material fibers to be treated.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: May 18, 2004
    Assignee: Toho Tenax Co., Ltd.
    Inventors: Hayashi Takahashi, Hideo Matsumoto
  • 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: 6686420
    Abstract: The invention is directed to a pneumatic tire having at least one component comprising a vulcanizable rubber composition, wherein the vulcanizable rubber composition comprises, based on 100 parts by weight of elastomer (phr), from about 30 to 100 phr of high trans random SIBR, and from about zero to about 70 phr of at least one additional elastomer, wherein the high trans random SIBR comprises from about 3 to about 30 percent by weight of styrene.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: February 3, 2004
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: David John Zanzig, Adel Farhan Halasa, John Robert Zuppo, III, John Joseph Andre Verthe
  • 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
  • Patent number: 6670426
    Abstract: An olefin thermoplastic elastomer containing an olefin random copolymer formed by copolymerizing ethylene, an &agr;-olefin having 3 to 10 carbon atoms and an unsaturated monomer having a functional group, and optionally a non-conjugated diene, and metal ions crosslinking the olefin random copolymer, has the same or similar rubber elasticity, flexibility and molding and processability as the conventional olefin thermoplastic elastomers, and has good mechanical properties, wear resistance, in particular scratch resistance.
    Type: Grant
    Filed: February 10, 2003
    Date of Patent: December 30, 2003
    Assignee: JSR Corporation
    Inventors: Kentarou Kanae, Akihiko Morikawa, Hideo Nakanishi, Shoei Tsuji
  • Patent number: 6670424
    Abstract: The present invention is concerned with cross-linked sulfonated polymers, eventually perfluorinated, and their preparation process. When molded in the form of membranes, the polymers are useful in electrochemical cells, in a chlorine-sodium electrolysis process, as separator in an electrochemical preparation or organic and inorganic compounds, as separators between an aqueous phase and an organic phase, or as catalyst for Diels-Alder additions, Friedel-Craft reactions, aldol concentrations, cationic polymerisation, esterification, and acetal formation.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: December 30, 2003
    Assignee: Hydro-Quebec
    Inventors: Christophe Michot, Michel Armand
  • Patent number: 6667377
    Abstract: This invention concerns ionomers comprising monomer units of vinylidene fluoride and monomer units of perfluorovinyl ethers having pendant groups containing fluoroalkyl sulfonyl methide or fluoroalkyl sulfonyl imide derivatives and univalent metal salts thereof, and with the uses of said ionomers in eledrochemical applications, electrochemical capacitors and modified electrodes.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: December 23, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Andrew Edward Feiring, Christopher Marc Doyle, Mark Gerrit Roelofs, William Brown Farnham, Paul Gregory Bekiarian, Hanne A. K. Blau
  • Patent number: 6649703
    Abstract: The present invention is concerned with cross-linked sulfonated polymers, eventually perfluorinated, and their preparation process. When molded in the form of membranes, the polymers are useful in electrochemical cells, in a chlorine-sodium electrolysis process, as separator in an electrochemical preparation or organic and inorganic compounds, as separators between an aqueous phase and an organic phase, or as catalyst for Diels-Alder additions, Friedel-Craft reactions, aldol concentrations, cationic polymerization, esterification, and acetal formation.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: November 18, 2003
    Assignee: Hydro-Quebec
    Inventors: Christophe Michot, Michel Armand
  • Patent number: 6583248
    Abstract: The polymerizable cyclodextrin derivatives (“PCDs”) of this invention relate to cyclodextrin derivatives wherein substantially each molecule of which contains one or more covalently attached polymerizable group or groups, may also contain one or more other types of functional groups covalently attached, may also have other types of molecules that are complexed or more particularly within the otherwise empty spaces within the cyclodextrin derivatives, and combinations and permutations of these characteristics.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: June 24, 2003
    Assignee: American Dental Association Health Foundation
    Inventor: Rafael L. Bowen
  • Patent number: 6559227
    Abstract: Disclosed is a process for producing a powdered water-soluble polymer comprising hydrolyzing a copolymer comprising an N-vinylamide unit and a vinyl acetate unit while dispersed in water under a basic condition and then washing the resulting powdered water-soluble polymer with at least one washing liquid selected from an alcohol, water at 20° C. or lower, and salt water.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: May 6, 2003
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yasuharu Mori, Kohichi Satoh, Nobuhiko Ueno
  • Publication number: 20030065103
    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: Application
    Filed: October 3, 2002
    Publication date: April 3, 2003
    Inventors: Richard Tien-Hua Chou, Mark Bernard Kelly
  • Publication number: 20020156170
    Abstract: An optical nanocomposite material has a nanoparticulate filler dispersed in a host plastic material. According to the method of making the nanocomposite material, a predetermined temperature sensitive optical vector, such as refractive index, of the plastic host material and nanoparticulate filler are directionally opposed resulting in a nanocomposite material having significantly improved stability of the refractive index with respect to temperature.
    Type: Application
    Filed: April 5, 2002
    Publication date: October 24, 2002
    Inventors: John Border, Michael R. McGovern
  • Patent number: 6429265
    Abstract: Disclosed herein is a moisture-absorbing and desorbing polymer, characterized in that, the said polymer is an organic high-molecular substance containing 1.0-8.0 meq/g of carboxyl group of a potassium type and having a cross-linking structure.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: August 6, 2002
    Assignee: Japan Exlan Company Limited
    Inventor: Ryosuke Nishida
  • Patent number: 6410666
    Abstract: The invention discloses a method for preparing a tri block copolymer of the formula: comprising: (a) contacting a cycloalkene with a chain transfer agent of the formula: Z—Y═Y—Z  in the presence of a metal carbene metathesis catalyst to form a telechelic polymer; and (d) contacting the telechelic polymer with an alkene of the formula  in the presence of an ATRP organometallic catalyst wherein n and m are integers; Z is an ATRP initiator and —Y═Y— is an alkenyl group; and, R′ is selected from the group consisting of aryl, nitrile and C1-C20 carboxylate, wherein R′ is substituted or unsubstituted. The invention also discloses a method for preparing a diblock copolymer. In addition, the invention encompasses a triblock copolymer having no 1,2-PBD structure in the PBD portion of the copolymer.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: June 25, 2002
    Assignee: California Institute of Technology
    Inventors: Robert H. Grubbs, Christopher W. Bielawski
  • Publication number: 20020068803
    Abstract: The present invention relates to a copolymer resin for a photoresist used in far ultraviolet ray such as KrF or ArF, process for preparation thereof, and photoresist comprising the same resin. The copolymer resin according to the present invention is easily prepared by conventional radical polymerization due to the introduction of mono-methyl cis-5-norbonen-endo-2,3-dicarboxylate unit to a structure of norbornene-maleic anhydride copolymer for photoresist. The resin has high transparency at 193 nm wavelength, provides increased etching resistance and settles the problem of offensive odor occurred in the course of copolymer resin synthesis. Further, as the resin composition can be easily controlled due to the molecular structure, the resin can be manufactured in a large scale.
    Type: Application
    Filed: January 22, 2002
    Publication date: June 6, 2002
    Applicant: Hyundai Electronics industries Co., Ltd.
    Inventors: Min Ho Jung, Jae Chang Jung, Cheol Kyu Bok, Ki Ho Baik
  • Publication number: 20010041764
    Abstract: Adhesives comprising as binder an aqueous dispersion of a polymer formed from free-radically polymerizable compounds (monomers), wherein from 0.1 to 20% by weight of the monomers, based on the overall amount of the monomers, are ethylenically unsaturated acids at least 20 mol % of whose acid groups are present as a salt of at least divalent metals.
    Type: Application
    Filed: August 25, 1999
    Publication date: November 15, 2001
    Inventors: SABINE KIELHORN-BAYER, BURKHARDT DAMES, KARL-HEINZ SCHUMACHER
  • Patent number: 6281255
    Abstract: Regeneration of weakly basic anion exchange resins with a combination of an alkali metal carbonate and an alkali metal bicarbonate is disclosed. Preferably, the alkali metal is sodium. The combination can be naturally available sodium sesquicarbonate.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: August 28, 2001
    Assignee: Graver Technologies, Inc.
    Inventors: Robert Kunin, Peter A. Yarnell, Nichole L. Pennisi
  • Patent number: 6191234
    Abstract: Conjugated diolefin-based copolymer rubber of a conjugated diolefin and an aromatic vinyl compound, wherein (1) the content of amino groups bound to the rubber (nitrogen content value) is 0.0025 to 0.20 mmol/g of copolymer rubber, (2) the content of the polymerization units of the aromatic vinyl compound is 5 wt % or more and less than 30 wt % based on the copolymer rubber, and the content of vinyl bonds in the polymerization unit of the conjugated diolefin (the total content of a 1,2-bond and a 3,4-bond) is 55 mol % or more based on the polymerization unit of the conjugated diolefin, or the content of the polymerization units of the aromatic vinyl compound is 30 to 50 wt % based on the copolymer rubber and the content of vinyl bonds in the polymerization unit of the conjugated diolefin is 25 to 55 mol % on the polymerization unit of the conjugated diolefin and (3) the molecular weight distribution is polymodal.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: February 20, 2001
    Assignee: JSR Corporation
    Inventors: Toshihiro Tadaki, Tamotsu Nagaoka, Hiroshi Akema, Iwakazu Hattori
  • Patent number: 6133381
    Abstract: This invention relates to a thermally stable brominated polystyrene composition which contains alkali metal base (e.g., NaOH) in an amount less than about 1 wt % such that if the flame retardant is dissolved in bromochloromethane and the resultant solution is extracted with water, the resultant water extract exhibits a pH of at least about 9.0. A preferred composition of this type even when heated to 315.degree. C. for one hour did not undergo darkening--the color remained tan. Comparative samples not containing the base turned black under these same conditions. Especially useful compositions additionally have less than 500 ppm, and better still, less than 100 ppm total Cl, and at least about 67 wt % bromine. Processes for producing the compositions are also described.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: October 17, 2000
    Assignee: Albelmarle Corporation
    Inventors: Jon S. Reed, Charles H. Kolich, Billie B. Dadgar, Donald E. Balhoff, Meng-Sheng Ao, Homer C. Lin, Thorsten W. Brockmann, David R. Brackenridge
  • Patent number: 6100343
    Abstract: A method for improving surface adhesion characteristics of a polymeric substrate and/or virgin polymeric material in which the portion of the surface of the polymeric substrate and/or virgin polymeric material to be treated is contacted with a composition containing at least one oxidizing agent. The oxidizing agent in the composition is present in a kinetically degrading state capable of producing at least one chemical intermediate which is reactive with the polymeric substrate/virgin polymeric material. Contact between the composition containing the oxidizing agent and the polymeric substrate/virgin polymeric material is maintained for an interval sufficient to produce or modify functional groups in the polymeric substrate/virgin polymeric material. The oxidizing agent of choice is a halogenated bivalent oxygen compound. The oxidizing agent is activated by an activator agent containing at least one carboxylic acid group or derivative thereof.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: August 8, 2000
    Assignee: Beholz Technology, L.L.C.
    Inventor: Lars Guenter Beholz
  • Patent number: 6077910
    Abstract: A polymer comprising an anionic group (e.g. an acid anhydride group, a carboxyl group) and a hydro-philic segment (e.g. a polyoxyalkylene ether unit) is used as a cement retarder. The polymer is obtainable by copolymerization of a monomer including maleic anhydride with a monomer including a vinylalkyl ether-series monomer in which an alkylene oxide is added to allyl alcohol. The polymer may be a copolymer copolymerized with other monomers such as styrene. Use of this cement retarder can provide patterns or washing-finished face on the surface of a concrete product. The cement retarder is suitable for application for a cement retardative sheet.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: June 20, 2000
    Assignee: Daicel-Huels Ltd.
    Inventors: Toru Ikuta, Hiroaki Arita
  • Patent number: 6077913
    Abstract: A method for improving surface adhesion characteristics of a polymer substrate in which the portion of the surface of the polymeric substrate to be treated is contacted with a fluid material containing at least one oxidizing agent. The oxidizing agent in the fluid material is present in a kinetically degrading state capable of producing at least one chemical intermediate which is reactive with the polymeric substrate. Contact between the fluid containing the oxidizing agent and the polymeric substrate is maintained for an interval sufficient to produce or modify functional groups in the polymeric substrate proximate to its surface. The oxidizing agent of choice is a bivalent oxygen compound. The oxidizing agent is activated by an activator agent containing at least one carboxylic acid group or derivative thereof. The activator agent may be present in the fluid upon initial contact with the polymeric substrate or may be added to the fluid subsequent to initial contact with the polymeric substrate.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: June 20, 2000
    Assignee: Beholz Technology, L.L.C.
    Inventor: Lars Guenter Beholz
  • Patent number: RE36657
    Abstract: A denture adhesive composition contains a denture adhesive and a pharmacologically acceptable carrier in which the denture adhesive is a salt of a copolymer of maleic acid or anhydride and a 1 to 5 carbon atom alkyl vinyl ether having a specific viscosity of at least 4.0. The denture adhesive composition is used to adhere a denture to the oral mucosa.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: April 11, 2000
    Assignee: Block Drug Company, Inc.
    Inventors: Joseph Synodis, Alfred J. Smetana, Robert C. Gasman, Eddie Wong, Hal C. Clarke