Metal Oxide Patents (Class 525/372)
  • Publication number: 20150021267
    Abstract: The present invention relates to a preparation method of a granular oxide adsorbent for water treatment in which a metal oxide is bound to the surface of polymer particles, and more specially, to a preparation method of a granular oxide adsorbent, comprising the following steps: putting polymer particles in an acidic solution; adding polymer particles to a metal oxide aqueous solution and adjusting a pH; and washing and drying the obtained product. Accordingly, a granular oxide adsorbent prepared by the preparation method is provided and is utilized in water treatment and the like.
    Type: Application
    Filed: December 28, 2012
    Publication date: January 22, 2015
    Inventor: Kwang-Ho Choo
  • Publication number: 20140227712
    Abstract: The present invention pertains to a method for isolating extracellular nucleic acids from a sample, wherein said sample is optionally stabilized, by binding the extracellular nucleic acids to a solid phase which carries anion exchange groups, comprising the following steps: binding the extracellular nucleic acids to the solid phase in a binding mixture having a first pH which allows binding the extracellular nucleic acids to the anion exchange groups of the solid phase; wherein the sample makes up at least 85% of the volume of the binding mixture; separating the solid phase with the bound extracellular nucleic acids; optionally washing the extracellular nucleic acids; optionally eluting extracellular nucleic acids from the solid phase. The method has the advantage that large sample volumes can be processed and that extracellular nucleic acids can be isolated rapidly with a high yield. The method is particularly suitable for automatable processes.
    Type: Application
    Filed: September 25, 2012
    Publication date: August 14, 2014
    Inventors: Martin Horlitz, Annette Nocon, Markus Sprenger-Haussels, Peter Grünefeld, Christoph Erbacher
  • Publication number: 20140206822
    Abstract: The present invention relates to a surface treatment method for magnetic particles, a magnetic composite prepared thereby, and a magnetic composite for labeling target materials. More specifically, the invention relates to a surface treatment method for magnetic particles and a magnetic composite having excellent dispersibility prepared thereby, wherein the surface treatment method comprises the steps of: performing the acid-treatment of magnetic particles and mixing the acid-treated magnetic particles with a water-soluble solvent in order to form a hydroxyl group (—OH) on the surface of the magnetic particles; and mixing the magnetic particles, in which the hydroxyl group is formed, with a surface treatment agent containing an organic ligand, which can be bonded to the hydroxyl group, so that the organic ligand is treated on the surface of the magnetic particles.
    Type: Application
    Filed: June 22, 2012
    Publication date: July 24, 2014
    Applicant: NANOBRICK CO., LTD.
    Inventors: Jae Hyun Joo, Sung-Bok Wee, Youn-Jung Park, Sung-Wan Hong, Hyong-Ku Chang
  • Patent number: 8729191
    Abstract: An embodiment of the present invention allows for production, with a high productivity, of a water-absorbent resin including an improved relationship between absorption capacity and water-soluble polymer which are conflicting properties of the water-absorbent resin, being easily controlled for polymerization reaction, being of no odor, being less colored, and being of high absorption properties. In one embodiment of the present invention, acrylic acid composition is neutralized with a basic composition including an iron content of 0.2 to 5 ppm by weight (relative to a basic compound exclusive of a solvent); and then polymerizing a resultant neutralized product, the acrylic acid composition including: (i) a methoxyphenol content of 10 to 200 ppm by weight relative to the weight of acrylic acid; and (ii) at least one compound content of which is 0 to 10 ppm by weight relative to the weight of acrylic acid, the compound being selected from the group consisting of protoanemonin and furfural.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: May 20, 2014
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Takaaki Kawano, Hirotama Fujimaru, Kunihiko Ishizaki, Katsuyuki Wada
  • Publication number: 20140063589
    Abstract: Pigment-based inks are provided. The inks include a non-polar carrier fluid and pigment particles suspended in the non-polar carrier fluid. The pigment particles have tri-block copolymer grafts. Each tri-block copolymer graft comprises a tri-block copolymer having three portions: an inner block attached to the pigment particle, a middle block, and an outer block, wherein the inner and outer blocks each contain bulky organic groups to help facilitate solubility of the functionalized polymers in the non-polar solvent and to provide steric stabilization of the resulting particle dispersion in the non-polar solvent, and wherein the middle block contains either acidic or basic functionalized side groups that facilitate charging of the pigment particle. A combination of an electronic display and an electronic ink employing the pigment and a process for making the pigment-based inks are also provided.
    Type: Application
    Filed: April 29, 2011
    Publication date: March 6, 2014
    Applicant: St. JUDE CHILDREN'S RESEARCH HOSPITAL
    Inventors: Zhang-Lin Zhou, Dick Henze, Jun Yang
  • Publication number: 20130331506
    Abstract: Provided is an organic-inorganic composite having two or more kinds of light emission sites. When the organic-inorganic composite is caused to emit light, each of emission colors in each of light emission sites is independently maintained as a emission color that is shown when each of the light emission sites is independently caused to emit light.
    Type: Application
    Filed: January 18, 2012
    Publication date: December 12, 2013
    Applicants: KYOTO UNIVERSITY, SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Takeshi Otsuka, Yoshiki Chujo
  • Patent number: 8541542
    Abstract: The present invention relates to a process for reducing residuals content in a vinyl aromatic polymer, said residuals comprising essentially unpolymerized vinyl aromatic monomer, wherein the vinyl aromatic polymer in the molten state is brought in contact with a solid in powder capable to catalyze the alkylation of said residual vinyl aromatic monomer on the vinyl aromatic polymer. Advantage of the present invention is a sharp reduction of the unpolymerized vinyl aromatic monomer in the vinyl aromatic polymer without generating a new residual and without inducing a colored vinyl aromatic polymer. The present invention also relates to said vinyl aromatic polymer having a low residuals content.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: September 24, 2013
    Assignee: Total Research & Technology Feluy
    Inventors: Thomas-Maurice Roussel, Bruno Vuillemin, Francois Fajula
  • Patent number: 8445025
    Abstract: Disclosed are the nanoparticle and the method for the same, and the preparing method includes steps of mixing polyethylenimine (PEI) with the poly(acrylic acid)-bound iron oxide (PAAIO) to form a PEI-PAAIO polyelectrolyte complex (PEC) and mixing the PEI-PAAIO PEC with genetic material such as plasmid DNA to form the PEI-PAAIO/pDNA magnetic nanoparticle. The PEI-PAAIO/pDNA magnetoplex is highly water dispersible and suitable for long term storage, shows superparamagnetism, low cytotoxicity, high stability and nice transfection efficiency, and thus the PEI-PAAIO PEC can replace PEI as a non-viral gene vector.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: May 21, 2013
    Assignee: Kaohsiung Medical University
    Inventors: Li-Fang Wang, Shuo-Li Sun, Yu-Lun Lo
  • Patent number: 8247499
    Abstract: A water-absorbing polymer structure is disclosed, whose surface has been brought into contact with a combination of a metal salt and an oxide of a metal. The invention also relates to a process for treating the surface of water-absorbing polymer structures whereby the surface of water-absorbing polymer structures is brought into contact with a combination of a metal salt and an oxide of a metal at a temperature of from about 50 to about 300° C. The present invention further relates to the water-absorbing polymer structures obtainable by this process, a composite comprising a water-absorbing polymer structure and a substrate, chemical products such as foams and fibers comprising water-absorbing polymer structures or a composite, and the use of a combination of an oxide of a metal and of a metal salt for treatment of the surface of super-absorbing polymer structures.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: August 21, 2012
    Assignee: Evonik Stockhausen GmbH
    Inventors: Mirko Walden, Franck Furno, Harald Schmidt
  • Patent number: 8236903
    Abstract: An acid-functional polymer is reacted with a transition metal compound having an average particle size small enough to react with the polymer at a temperature below the glass transition temperature of the polymer, e.g., at room temperature, to produce cross-linked polymer. The process produces a liquid polymer product that dries to a cross-linked film without the required presence of volatile ligands. Improved coatings such as floor polishes that can be formed from these cross-linked polymers are also disclosed.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: August 7, 2012
    Inventors: Jay M. Shaffer, Tracy L. Eifolla
  • Publication number: 20120053301
    Abstract: A polyethylene composition comprising 0.01% to 1% by weight of at least one platelet-shaped nano boehmite nucleator, wherein the platelet-shaped nano boehmite nucleator comprises at least 70% by weight of Al2O3 and has a crystallite size of at least 5 nm, and the polyethylene composition comprises a density greater than 0.94 g/cm3, a melt index (MI2) ranging from equal to or greater than 0.3 g/10 min. up to equal to or less than 3 g/10 min., and a peak crystallization temperature (Tc) value determined according to ASTM D 3418, with an annealing temperature of 160° C. and a cooling rate of 10° C./min., that corresponds to formula (I): Tc?(A*density)?73.5° C.??(I) where A is 200 cm3-° C./g, Tc is in units of ° C., and density is in units of g/cm3.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 1, 2012
    Inventors: Jeffrey C. Haley, Robert L. Sherman, JR.
  • Patent number: 7959530
    Abstract: The invention relates to an elastomeric product which contains a radical cross-linked rubber mixture, especially drive belts. For the production of elastomeric products, especially drive belts, having a long service life and producible in an environmentally friendly way, the rubber mixture contains (a) 0.1 to 50 phr of at least one carboxylic acid, which is at least ?,? unsaturated and ?,? unsaturated and preferably has at least one allylic hydrogen atom; and, (b) 0.1 to 50 phr of at least one salt-former as co-activator.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: June 14, 2011
    Assignee: ContiTech Antriebssysteme GmbH
    Inventors: Karl-Friedrich Grüssel, Reinhard Teves, Michael Well
  • Patent number: 7956133
    Abstract: A gas-barrier material in which carboxyl groups are ionically crosslinked in an amount corresponding to an acid value of at least 330 mgKOH/g of a resin that has the carboxyl groups in an amount corresponding to an acid value of not smaller than 580 mgKOH/g. The gas-barrier material exhibits excellent gas-barrier property, retort resistance and flexibility under highly humid conditions, enables the film to be cured at a low temperature in a short period of time, and can be favorably produced.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: June 7, 2011
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Aki Endo, Hiroshi Sasaki, Yusuke Obu
  • Publication number: 20110116993
    Abstract: Methods and apparatuses for encapsulating inorganic micro- or nanostructures within polymeric microgels are described. In various embodiments, viruses are encapsulated with microgels during microgel formation. The viruses can provide a template for in situ synthesis of the inorganic structures within the microgel. The inorganic structures can be distributed substantially homogeneously throughout the microgel, or can be distributed non-uniformly within the microgel. The inventive microgel compositions can be used for a variety of applications including electronic devices, biotechnological devices, fuel cells, display devices and optical devices.
    Type: Application
    Filed: September 19, 2008
    Publication date: May 19, 2011
    Applicant: Massachusetts Institute of Technology
    Inventors: Yoon Sung Nam, Angela Belcher, Andrew Magyar, Daeyeon Lee, Jin-Woong Kim, David Weitz
  • Patent number: 7737225
    Abstract: An elastomer composition includes a polymer system made up of a majority of HNBR polymer and an optional polymer additive such as carboxylated nitrile, ethylene-propylene-diene rubber, isoprene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, butyl rubber, isoprene rubber, natural rubber and hydrogenated carboxylated butadiene acrylonitrile terpolymer, and combinations thereof. The polymer system totals 100 parts by weight. A cure system for the elastomer composition includes 1.5 to 30 parts by weight of zinc, magnesium or calcium oxide, 15 to 50 parts by weight of an ?,?-ethylenically unsaturated carboxylic acid and an organoperoxide. Under vulcanization conditions, the elastomer composition cures through the in situ formation of a metal carboxylate. A degradation inhibitor for an elastomer composition that includes an amine and an imidazole along with an optional polymerized quinoline is noted to be particularly effective.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: June 15, 2010
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul Touchet, Alan R. Teets, David P. Flanagan, Charles G. Pergantis
  • Patent number: 7674854
    Abstract: It is an object of the present invention to provide a method of producing a polyvinyl acetal resin by which a polyvinyl acetal resin having a high acetalization degree can be produced even in a solid catalyst system, a polyvinyl butyral resin produced by the above-mentioned production method of a polyvinyl acetal resin, and a method of producing an esterified polyvinyl alcohol resin by which the esterification can be performed at high efficiency even in a solid catalyst system. The present invention is a method of producing a polyvinyl acetal resin, wherein a solution or a suspension containing a polyvinyl alcohol resin and a carbonyl compound is pressurized in the presence of a solid catalyst.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: March 9, 2010
    Assignee: Sekisui Chemical Co., Ltd.
    Inventors: Toshio Tada, Yohei Nishimura, Katsunori Toyoshima
  • Publication number: 20090088533
    Abstract: Monomers corresponding to the formula Z2C?CWX(CY2)nCN, in which X represents an atom of oxygen or another atom, Z and Y represent an atom of hydrogen or fluorine, W represents an atom of hydrogen or fluorine or a CF3 group and n is a natural integer between 0 and 10 inclusively. Because of the novel methods of copolymerization and crosslinking, these monomers make it possible to produce fluorosulphonated nitrile elastomers having very low glass transition temperatures (Tg).
    Type: Application
    Filed: October 20, 2008
    Publication date: April 2, 2009
    Applicant: HYDRO-QUEBEC
    Inventors: Bruno Michel Ameduri, Abdellatif Manseri, Mario Boucher
  • Publication number: 20090017280
    Abstract: An organic-inorganic hybrid composition comprising inorganic fine particles having a refractive index of from 1.90 to 3.00, and a thermoplastic resin having a functional group capable of forming a chemical bond with the inorganic fine particles at one or more polymer chain terminals and having a number average molecular weight of from 1,000 to 500,000. The composition has high refraction properties and excellent transparency.
    Type: Application
    Filed: February 9, 2007
    Publication date: January 15, 2009
    Applicant: FUJIFILM Corporation
    Inventors: Ryo Suzuki, Tatsuhiko Obayashi, Hiroaki Mochizuki
  • 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: 7119151
    Abstract: An antimicrobial agent utilizes a resin having acrylonitrile and styrene and/or a conjugated diene as units. The antimicrobial agent includes a metal-salt-containing copolymer, and the metal-salt-containing copolymer is obtained by treating a copolymer containing acrylonitrile and at least one of styrene and a conjugated diene as units with an acid to thereby introduce acid radicals into the copolymer, and converting at least part of the acid radicals into a salt of at least one metal selected from among Ag, Cu, and Zn.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: October 10, 2006
    Assignee: Sony Corporation
    Inventors: Haruo Watanabe, Yasuhito Inagaki, Tsutomu Noguchi
  • 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: 6673871
    Abstract: Elastomeric articles, such as gloves and condoms, are disclosed including a process for making the articles. The elastomeric articles produced according to the present invention are made from a synthetic polymer. During production of the articles, the polymer is cross-linked using a metal oxide as a cross-linking agent. In one embodiment, the polymer is cross-linked without using conventional sulfur-containing cross-linking agents or accelerators.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: January 6, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Derek Warneke, Jali Williams
  • 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: 6642331
    Abstract: Perfluoroelastomers, curable by peroxidic route, obtainable by polymerizing the following monomers: a) tetrafluoroethylene (TFE); b) fluorovinylethers of general formula: CFX═CXOCF2OR  (I) c) bis-olefins having general formula: RI1RI2C═CRI3—Z—CRI4═CRI5RI6  (IA) d) optionally, one or more fluorinated olefinic comonomers selected from C2-C8 perfluoroolefins, perfluoroalkylvinylethers (PAVE) CF2═CFOR2f, perfluoro-oxyalkylvinylethers CF2═CFOXa, said perfluoroelastomers comprising iodine and/or bromine atoms in the chain and/or in end position, said halogen atoms deriving from “cure site” comonomers and/or from chain transfer agents used in polymerization.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: November 4, 2003
    Assignee: Ausimont S.p.A.
    Inventors: Marco Apostolo, Stefano Arrigoni
  • Patent number: 6632897
    Abstract: Described is the use of nanoscale metal oxide particles as catalysts for the thermal and/or photochemical polymerization of species having at least one polymerizable carbon-carbon multiple bond and/or at least one carbon containing ring capable of undergoing a ring opening polymerization.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: October 14, 2003
    Assignee: Institut Für Neue Materialien gemeinnützige
    Inventors: Elisabeth Geiter, Helmut Schmidt
  • Patent number: 6610790
    Abstract: Fluoroelastomers which contain copolymerized units of a fluoroolefin cure site monomer of the general formula: Rf—(CH2CF2)n—CH═CF2, wherein Rf is a C1-C6 perfluoroalkyl group or a C1-C6 perfluoroalkoxy group and n is an integer from 1-3, exhibit excellent physical properties and processability when cured with polyhydroxy compounds.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: August 26, 2003
    Assignee: Dupont Dow Elastomers L.L.C.
    Inventors: Ming-Hong Hung, Walter Werner Schmiegel
  • Patent number: 6566463
    Abstract: This invention provides the multifunctional coagents of the metallic salt of unsaturated carboxylic acid that obtained by the reaction from two mols of mono-basic acid and two mols of di-basic acid as an unsaturated carboxylic acid, and three mols of divalent metal oxide. For making these multifunctional coagents of metallic salt of unsaturated carboxylic acid, one kind or two kinds of mono-basic acid can be used among acrylic acid and methacrylic acid as an unsaturated carboxylic acid. As a di-basic acid, only one kind can be used among maleic acid and fumaric acid. And, as a metal complex for making this multifunctional metallic coagents, the divalent metal oxide such as zinc oxide, magnesium oxide and calcium oxide that can be used. One kind or two and over kinds of metal oxide can be used.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: May 20, 2003
    Inventor: In Hong Hwang
  • 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
  • Publication number: 20020114943
    Abstract: Elastomeric articles, such as gloves and condoms, are disclosed including a process for making the articles. The elastomeric articles produced according to the present invention are made from a synthetic polymer. During production of the articles, the polymer is cross-linked using a metal oxide as a cross-linking agent. In one embodiment, the polymer is cross-linked without using conventional sulfur-containing cross-linking agents or accelerators.
    Type: Application
    Filed: December 21, 2000
    Publication date: August 22, 2002
    Inventors: Derek Warneke, Jali Williams
  • Patent number: 6387291
    Abstract: An aqueous leather coating composition and a method for coating leather with the aqueous coating composition are provided. The aqueous coating composition contains an aqueous emulsion polymer which includes from 0.4% to 10% by weight of a copolymerized acetoacetate or acetoacetamide monomer and has a glass transition temperature from −20° C. to 10° C. In an alternative embodiment the aqueous coating composition contains an aqueous emulsion polymer which includes from 0.1% to 6% by weight of a copolymerized acetoacetate or acetoacetamide monomer and from 2% to 15% by weight of copolymerized carboxylic acid monomer and has a glass transition temperature from −40° C. to 0° C., the polymer having been contacted with a transition metal oxide, hydroxide, or carbonate at a pH less than 9 in an amount greater than 0.20 equivalent of transition metal per equivalent of copolymerized carboxylic acid monomer.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: May 14, 2002
    Assignee: Rohm and Haas Company
    Inventors: Patricia Marie Lesko, Frederick James Schindler
  • Publication number: 20020002248
    Abstract: Fluoroelastomers which contain copolymerized units of a fluoroolefin cure site monomer of the general formula
    Type: Application
    Filed: March 22, 2001
    Publication date: January 3, 2002
    Inventors: Ming-Hong Hung, Walter W. Schmiegel
  • Patent number: 6313231
    Abstract: A superabsorbent resin composition comprising the following components (A), (B) and (C), wherein (A) is a superabsorbent resin, (B) is a metal compound containing at least one metal A selected from the group consisting of titanium and zirconium and (C) is a chelating agent.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: November 6, 2001
    Assignee: Kao Corporation
    Inventors: Yasunori Hosokawa, Tadashi Igarashi, Isao Tsuru, Yoko Hanada
  • Patent number: 6290866
    Abstract: An aqueous leather coating composition and a method for coating leather with the aqueous coating composition are provided. The aqueous coating composition contains an aqueous emulsion polymer which includes from 0.4% to 10% by weight of a copolymerized acetoacetate or acetoacetamide monomer and has a glass transition temperature from −20° C. to 10° C. In an alternative embodiment the aqueous coating composition contains an aqueous emulsion polymer which includes from 0.1% to 6% by weight of a copolymerized acetoacetate or acetoacetamide monomer and from 2% to 15% by weight of copolymerized carboxylic acid monomer and has a glass transition temperature from −40° C. to 0° C., the polymer having been contacted with a transition metal oxide, hydroxide, or carbonate at a pH less than 9 in an amount greater than 0.20 equivalent of transition metal per equivalent of copolymerized carboxylic acid monomer.
    Type: Grant
    Filed: January 10, 2000
    Date of Patent: September 18, 2001
    Assignee: Rohm and Haas Company
    Inventors: Patricia Marie Lesko, Frederick James Schindler
  • Patent number: 6254804
    Abstract: An oxygen scavenger composition, for use in or with plastics materials, includes a polymer or oligomer having at least one cyclohexene group or functionality. The composition produces only low levels of volatile or extractable (from a plastics material in which it is incorporated) products as a consequence of oxygen scavenging.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: July 3, 2001
    Assignee: Cryovac, Inc.
    Inventors: Andrew E. Matthews, Craig Depree
  • Patent number: 6211301
    Abstract: Antifouling resins and methods for the production of an antifouling resin comprising reacting (i) a base resin (A) simultaneously comprising a carboxyl group and a group having a polyalkylene glycol structure represented by the formula (I) &Parenopenst;CmH2mO&Parenclosest;n R1  (I) wherein R1 is a hydrogen atom or a straight chain, branched, or cyclic alkyl group or an aralkyl group, m is 1, 2, 3, or 4, and n is an integer of not less than 1 and not more than 100 in the molecular unit, with (ii) the oxide or hydroxide of a metallic atom having a valence of not less than 2 in the presence of present water in an amount of 1-30 wt. %, based on the weight of said base resin (A).
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: April 3, 2001
    Assignee: Kansai Paint Co., LTD
    Inventors: Shinichi Ogino, Nobushige Numa
  • Patent number: 6024872
    Abstract: A filtration membrane for micro- or ultra-filtration is formed from a complex of PVDF and calcined .alpha.-alumina (".alpha.-Al") particles, in which complex the particles are reacted and dispersed. The suspended complex is then mixed with a hydrophilic polymer such as polyvinyl alcohol (40%-90% hydrolyzed) referred to herein as HPVA, which reacts with the complex imparting hydrophilicity to the polymer. The novel membrane provides about 50% higher specific flux than a membrane made with the same polymer but without the .alpha.-Al particles. Unexpectedly, the net flux is improved by treating the membrane with a solution of sodium hypochlorite which fails to remove the HPVA from the novel membrane but does remove it from the prior art membrane which does not contain the .alpha.-Al. The preferred membrane comprises a macroporous support coated on its outer surface with a thin tubular asymmetric semipermeable film of polymer containing less than about 50% by weight of .alpha.-Al particles.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: February 15, 2000
    Assignee: Zenon Evironmental Inc.
    Inventors: Mailvaganam Mahendran, Kenneth Paul Goodboy, Jinhua Bai
  • Patent number: 5958194
    Abstract: A soft or rigid gas permeable silicon elastomer contact lens bonded with either titanium, titanium monoxide, titanium dioxide, dititanium trioxide, trititanium pentoxide, and mixtures thereof to form contact lens having high oxygen permeability, improved wetting ability, decreased fogging ability, an enhanced self-cleaning characteristic, and decreased transmissibility to ultraviolet radiation. Preferred methods of incorporating the additives is by cationic polymerization of either a coating of or in situ bonding to a silicon polymer resulting in the expression of the additive toward the exterior surface of the chemical matrix of the contact lens. Other bonding methods are electron beam evaporation., sputtering and ion implantation of the titanium additive.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: September 28, 1999
    Inventor: Alan N. Glazier
  • Patent number: 5945488
    Abstract: New adducts are produced from the reaction of vinyl dioxo compounds with anhydrides, epoxyesters, lactones, and lactams, and such adducts are useful for preparing curable coating compositions.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: August 31, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Basil Volodymr Gregorovich, Isidor Hazan, Hisanori Omura
  • Patent number: 5869578
    Abstract: A process for forming a golf ball cover composition, which process comprises: a) forming a polymer comprising (1) a first monomeric component comprising an olefinic monomer having from 2 to 8 carbon atoms; (2) a second monomeric component comprising an unsaturated carboxylic acid based acrylate class ester having from 4 to 22 carbon atoms; and (3) an optional third monomeric component comprising at least one monomer selected from the group consisting of carbon monoxide, sulfur dioxide, an anhydride monomer, an unsaturated monocarboxylic acid, an olefin having from 2 to 8 carbon atoms, and a vinyl ester or vinyl ether of an alkyl acid having from 4 to 21 carbon atoms; b) applying a sufficient amount of heat to the polymer to convert it to a substantially molten state; c) adding an inorganic metal base to the molten polymer to form a mixture; and d) saponifying the mixture to form a polymer salt particularly adapted for forming improved golf ball covers.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: February 9, 1999
    Assignee: Acushnet Company
    Inventor: Murali Rajagopalan
  • Patent number: 5859145
    Abstract: Disclosed is a process for esterifying and/or transesterifying a polymer having a polyethylenic backbone and pendant acid and/or ester moieties comprising contacting a melt of the polymer with a transesterifying compound so that the polymer undergoes esterification and/or transesterification but not alcoholysis. The esterified or transesterified polymer also has pendant ester moieties which differ in kind and/or number from the unreacted polymer. In one embodiment, the process also comprises adding an amount of a transition metal salt that is effective to promote oxygen scavenging. Also in a further embodiment, the process comprises irradiating the transesterified polymer with actinic radiation to reduce the induction period before oxygen scavenging commences. Also disclosed are compositions comprising a component which comprises an ethylenic or polyethylenic backbone and a pendant or terminal moiety comprising a benzylic, allylic, or ether-containing radical.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 12, 1999
    Assignee: Chevron Chemical Company
    Inventors: Ta Yen Ching, Kiyoshi Katsumoto, Steven P. Current, Leslie P. Theard
  • Patent number: 5804668
    Abstract: The polymer compounds according to the invention prepared from specific amidines, zinc mercapto compounds and elastomers are ideally suitable for the production of thermally stable rubber vulcanisates containing halogen. The vulcanisates of rubbers containing halogen obtained by means of the polymer compounds are distinguished by a reduced tendency towards unwanted post-vulcanization and, at elevated storage temperatures, are resistant to thermal and oxidative degradation.
    Type: Grant
    Filed: May 1, 1997
    Date of Patent: September 8, 1998
    Assignee: Bayer AG
    Inventors: Rudiger Schubart, Rudiger Musch
  • Patent number: 5753779
    Abstract: An aqueous chromium-free coating preparation for the protection of a metal substrate against corrosion and attack by moisture comprises an acrylic acid or derivative thereof as binder and also a crosslinking system which comprises at least one hydroxide of a divalent metal ion and an amine compound. The acrylic acid:crosslinking system ratio is generally 1.5-4:2-4. The crosslinking system may comprise other monofunctional or polyfunctional compounds. Various constituents of the crosslinking system can be interchanged within certain margins.
    Type: Grant
    Filed: March 28, 1996
    Date of Patent: May 19, 1998
    Assignee: ADW Chemical Products B.V.
    Inventor: Johannes J.H. Verberg
  • Patent number: 5631316
    Abstract: Vulcanizable tire innerliner compositions are described which are essentially free of halogen atoms or contain a reduced halogen content. The innerliners contain a saturated elastomeric interpolymer of a C.sub.4 -C.sub.7 isomonoolefin, e.g., isobutylene and a para-alkylstyrene e.g., para-methylstyrene, which contains benzylic ester functionality having the structure: ##STR1## wherein R.sub.2 and R.sub.3 are independently selected from hydrogen or C.sub.1 to C.sub.6 alkyl, and R.sub.4 is selected from hydrogen, C.sub.1, to C.sub.28 alkyl, aryl or C.sub.2 to C.sub.28 alkenyl.Innerliners of the invention provide excellent impermeability to air, heat aging properties and good adhesion to tire carcass stock required for tire innerliners, and are also essentially free of halogen or contain low halogen content thereby reducing environmental concerns occasioned by the incineration of used tires.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 20, 1997
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Bernard J. Costemalle, James V. Fusco, Pierre T. Hous, Hsien-Chang Wang
  • Patent number: 5627239
    Abstract: Disclosed is a process for esterifying and/or transesterifying a polymer having a polyethylenic backbone and pendant acid and/or ester moieties comprising contacting a melt of the polymer with a transesterifying compound so that the polymer undergoes esterification and/or transesterification but not alcoholysis. The esterified or transesterified polymer also has pendant ester moieties which differ in kind and/or number from the unreacted polymer. In one embodiment, the process also comprises adding an amount of a transition metal salt that is effective to promote oxygen scavenging. Also in a further embodiment, the process comprises irradiating the transesterified polymer with actinic radiation to reduce the induction period before oxygen scavenging commences.Also disclosed are compositions comprising a component which comprises an ethylenic or polyethylenic backbone and a pendant or terminal moiety comprising a benzylic, allylic, or ether-containing radical.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 6, 1997
    Assignee: Chevron Chemical Company
    Inventors: Ta Y. Ching, Kiyoshi Katsumoto, Steven P. Current, Leslie P. Theard
  • Patent number: 5612421
    Abstract: Methods and compositions for pretreating a metal surface are provided. The methods comprise applying to the metal surface a hydrolysate of a copolymer of an unsaturated carboxylic acid or derivative thereof and a vinyltrialkoxysilane compound. Novel zinc salt hydrolysate compositions and zirconium salt hydrolysate compositions are also disclosed.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: March 18, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Alan E. Goliaszewski, David W. Reichgott, Lothar S. Sander
  • Patent number: 5578684
    Abstract: Polyvinylpyridine N-oxides are prepared by oxidizing polyvinyl-pyridines with aqueous solutions of hydrogen peroxide in the presence of acids and oxides or acids of elements of Groups 5b, 6b, 7b and 8 of the Periodic Table or of salts of these acids as catalyst, it also being possible for the oxidation to take place in the absence of the catalysts when from 40 to 80% strength aqueous solutions of at least dibasic carboxylic acids or of polymers of monoethylenically unsaturated carboxylic acids are used as solvent.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: November 26, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Christian Schade, Dieter Boeckh, Juergen Detering
  • Patent number: 5498785
    Abstract: A continuous process for the aminolysis of polymers produced from ethylenically unsaturated structural units comprising contacting, in a reaction vessel,(a) a molten polymer containing structural units produced from alpha-olefins having from 2 to 8 carbons atoms, and esters of of .alpha.,.beta.-ethylenically-unsaturated carboxylic acids in a reaction vessel; and(b) a liquid phase comprising an amine-containing compound, e.g., an alkylamine having an alkyl group containing 1-30 carbon atoms, ammonia, or derivatives thereof, in the presence of(c) a catalytically effective amount of a catalyst, which is preferably a metal-containing solution, for a period of time effective to produce a polymer containing acrylamide structural units, wherein the period of time is less than about 1 hour.This process is performed continuously in a reaction vessel, preferably in at least one reactive extruder, under conditions effective to provide an ethylene co-polymer containing acrylamide structural units.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: March 12, 1996
    Assignee: Chevron Chemical Company
    Inventors: James H. Wang, Victor P. Kurkov, Leslie P. Theard, David Rosendale
  • Patent number: 5319018
    Abstract: Acid-functional polymer is reacted with a transition metal compound at a temperature above the T.sub.g of the polymer to produce crosslinked polymer. The process produces a liquid polymer product that dries to a crosslinked film without the required presence of volatile ligands. Improved coating such as floor polishes are also disclosed.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: June 7, 1994
    Assignee: Rohm and Haas Company
    Inventors: Joseph M. Owens, Richard T. Gray
  • Patent number: 5310786
    Abstract: The invention relates to polymer conjugates which are reversibly precipitable from aqueous solution and are composed of a carrier polymer which is soluble in aqueous medium and of a catalytically active compound which is chemically bonded thereto. The invention also relates to a process for the preparation of polymer conjugates of this type, and to the use thereof in homogeneous catalysis, especially biocatalysis.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: May 10, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus-Dieter Vorlop, Kerstin Steinke, Dieter Wullbrandt, Merten Schlingmann
  • Patent number: 5292822
    Abstract: High-moisture absorbing and releasing fibers which have moisture-absorbing properties and moisture-releasing properties, are resistant to repetitive use, and have both flame resistance and antibacterial properties and a process for producing the same are provided.Acrylic fibers in which increase in nitrogen content by hydrazine cross-linking, an amount of salt type carboxyl groups and amido groups by modification of nitrile groups, tensile strength, LOI and sterilization rate are specifically adjusted. Such the fibers are obtained by hydrazine cross-linking treatment, hydrolysis treatment and conversion of the carboxyl groups to the salt type.High-moisture absorbing and releasing fibers having excellent processability in addition to flame resistance and antibacterial properties are obtained. Such the fibers can also be used repeatedly.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: March 8, 1994
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Koji Tanaka, Kazutoshi Muta