Treated With Nitrogen-containing Material Patents (Class 521/32)
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Patent number: 8506818Abstract: The present invention relates to a method of producing novel chelate resins based on crosslinked polymer beads starting with methacrylic compounds, containing aminomethyl groups and/or aminomethyl nitrogen heterocyclic groups as functional groups, that have a high uptake capacity for heavy metals and rapid kinetics.Type: GrantFiled: July 11, 2008Date of Patent: August 13, 2013Assignee: LANXESS Deutschland GmbHInventors: Reinhold Klipper, Michael Schelhaas
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Publication number: 20130177520Abstract: The present invention relates to taste masked dosage forms of bitter tasting anti-retroviral drugs comprising a complex of the said anti-retroviral drug and an ion-exchange resin and one or more of other pharmaceutically acceptable excipients. It further relates to the processes for the preparation thereof.Type: ApplicationFiled: December 23, 2010Publication date: July 11, 2013Applicant: RANBAXY LABORATORIES LIMITEDInventors: Vasu Kumar Kakumanu, Shashikanth Isloor, Vinod Kumar Arora
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Patent number: 8476324Abstract: A method for manufacturing an anion exchange resin, in which remaining of impurities and generation of decomposition products are suppressed and leachables are reduced, the method including the following steps (1-a) to (1-e) of: (1-a) obtaining a cross-linked copolymer by copolymerizing a monovinyl aromatic monomer and a cross-linkable aromatic monomer; (1-b) specifying the content of a specific leachable compound to be 400 ?g or less relative to 1 g of the cross-linked copolymer; (1-c) haloalkylating the cross-linked copolymer so as to introduce 80 percent by mole or less of haloalkyl group relative to the monovinyl aromatic monomer; (1-d) removing a specific leachable compound from the haloalkylated cross-linked copolymer; and (1-e) subjecting the haloalkylated cross-linked copolymer to a reaction with an amine compound.Type: GrantFiled: April 15, 2008Date of Patent: July 2, 2013Assignees: Kurita Water Industries Ltd., Mitsubishi Chemical CorporationInventors: Takeo Fukui, Tetsuo Mizuniwa, Kazuhiko Tokunaga, Masako Yasutomi
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Patent number: 8470896Abstract: Acid block anionic selective polymeric membranes are provided of the type having a woven or non-woven cloth reinforcing structure. The polymer of the membrane is prepared by the process comprising copolymerizing components I, II, and III wherein I is an ethylenically unsaturated aliphatic or aromatic tertiary or quaternary amine monomer. II is a cross-linking monomer, and III is vinylbenzyl chloride. The reaction is conducted in the presence of a free radical polymerization initiator. Additionally, anionic exchange membranes of the type used in electrodialysis apparatus are disclosed and comprise a woven or nonwoven cloth that is impregnated with a copolymer comprising the reaction products of components I, II, and III.Type: GrantFiled: December 23, 2010Date of Patent: June 25, 2013Assignee: General Electric CompanyInventors: Yongchang Zheng, John Barber
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Patent number: 8440730Abstract: The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having aminomethylphosphonic acid groups and iminodimethylphosphonic acid groups having high dynamic absorption capacity for cations at a low residual content of the cations and high regeneration efficiency, and a markedly lengthened loading duration of the chelating resin, to the chelating exchangers themselves, and also to uses thereof.Type: GrantFiled: September 27, 2010Date of Patent: May 14, 2013Assignee: LANXESS Deutschland GmbHInventors: Reinhold Klipper, Stefan Neumann, Jens Stoll, Michael Schelhaas, Pierre Vanhoorne
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Patent number: 8436057Abstract: An anion exchange membrane and fuel cell incorporating the anion exchange membrane are detailed in which proazaphosphatrane and azaphosphatrane cations are covalently bonded to a sulfonated fluoropolymer support along with anionic counterions. A positive charge is dispersed in the aforementioned cations which are buried in the support to reduce the cation-anion interactions and increase the mobility of hydroxide ions, for example, across the membrane. The anion exchange membrane has the ability to operate at high temperatures and in highly alkaline environments with high conductivity and low resistance.Type: GrantFiled: February 17, 2010Date of Patent: May 7, 2013Assignee: U.S. Department of EnergyInventors: John G. Verkade, Kuldeep Wadhwa, Xueqian Kong, Klaus Schmidt-Rohr
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Publication number: 20130101767Abstract: The present disclosure provides a method for melt processing a sulfonated block copolymer in which the sulfonic acid or sulfonate functional groups are partially or completely neutralized by an amine, and to articles obtained by the method. Moreover, the shaped articles which are obtained by molding a composition comprising the neutralized sulfonated block copolymer may can be converted into shaped articles which comprise the sulfonated block copolymer(s) employed in the preparation of the amine neutralized block copolymer(s). The present disclosure further provides a sulfonated block copolymer comprising which is modified by an amine of formula (Ia) wherein Het together with the nitrogen to which it is bonded represents an optionally substituted 5- or 6-membered hetero cycle.Type: ApplicationFiled: October 25, 2011Publication date: April 25, 2013Applicant: KRATON POLYMERS U.S. LLCInventor: Xiangyun Wei
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Publication number: 20130085190Abstract: This invention relates to certain novel anion exchange resins and methods of making them. It relates more particularly to aminated cross-linked resin bead polymers containing an inert and/or chloromethylated core, and an aminated outer shell, and to methods for preparing the same. These resins exhibit improved anion exchange properties.Type: ApplicationFiled: September 24, 2012Publication date: April 4, 2013Applicant: BROTECH CORP. D/B/A PUROLITEInventor: Brotech Corp. d/b/a Purolite
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Patent number: 8399528Abstract: The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having acetic acid and/or iminodiacetic acid groups having high dynamic absorption capacity for cations at a low residual content of the cations and high regeneration efficiency, to the chelating exchangers themselves, and also to uses thereof.Type: GrantFiled: September 27, 2010Date of Patent: March 19, 2013Assignee: LANXESS Deutschland GmbHInventors: Reinhold Klipper, Stefan Neumann, Jens Stoll, Michael Schelhaas, Pierre Vanhoorne
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Publication number: 20130053459Abstract: To obtain an ionic polymer having a high ion exchange capacity and a low moisture content, by simply converting a —SO2F group in a polymer to a pendant group having a plurality of ion exchange groups, while preventing a cross-linking reaction. A process for producing an ionic polymer, which comprises (A) a step of converting a —SO2F group in a polymer to a —SO2NZ1Z2 group (each of Z1 and Z2 which are independent of each other, is a group selected from a hydrogen atom, a monovalent metal element and a trimethylsilyl group), (B) a step of reacting the polymer obtained in the step (A) with FSO2(CF2)2SO2F, and (C) a step of converting a terminal —SO2F group of a side chain in the polymer obtained in the step (B) to an ion exchange group such as a —SO3H group; and an ionic polymer obtained by such a process.Type: ApplicationFiled: August 1, 2012Publication date: February 28, 2013Applicant: Asahi Glass Company, LimitedInventors: Junichi Tayanagi, Takeshi Hirai
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Publication number: 20120295992Abstract: The invention relates to a process for the preparation of a separating material having improved binding capacity, and to materials prepared and to the use thereof for the separation of charged or uncharged biopolymers from liquids.Type: ApplicationFiled: August 1, 2012Publication date: November 22, 2012Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRAENKTER HAFTUNGInventor: Matthias JOEHNCK
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Publication number: 20120276471Abstract: Materials are provided that may be useful as ionomers or polymer ionomers, including compounds including bis sulfonyl imide groups which may be highly fluorinated and may be polymers.Type: ApplicationFiled: June 21, 2012Publication date: November 1, 2012Inventors: Steven J. Hamrock, Mark S. Schaberg, Neeraj Sharma, John E. Abulu
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Patent number: 8273799Abstract: The invention generally relates to amination reactions and amination reaction products, and particularly to methods for aminating vinyl aromatic polymers utilizing tertiary amines. In one embodiment, the invention includes conducting an amination reaction by combining a tertiary amine and a vinyl aromatic polymer comprising benzyl chloride groups to form a reaction mixture and maintaining the pH of the reaction mixture within a designated range. In another embodiment, the invention includes an aminated vinyl aromatic polymer. In yet another embodiment, the invention includes an ion exchange resin including quaternary ammonium functionality. The invention is useful in preparing ion exchange resins suitable for a variety of applications such as the removal of perchlorate ions from water sources and recovery of gold cyanide from mining leach solutions.Type: GrantFiled: December 10, 2009Date of Patent: September 25, 2012Assignee: Dow Global Technologies LLCInventors: William I. Harris, Dennis A. Keeley, Daryl J. Gisch, Marvin H. Tegen, James A. Jagodzinski, David C. McDonald
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Publication number: 20120196944Abstract: A method for extracting nucleic acids from a biological material such as blood comprises contacting the mixture with a material at a pH such that the material is positively charged and will bind negatively charged nucleic acids and then eluting the nucleic acids at a pH when the said materials possess a neutral or negative charge to release the nucleic acids. The nucleic acids can be removed under mildly alkaline conditions to the maintain integrity of the nucleic acids and to allow retrieval of the nucleic acids in reagents that are immediately compatible with either storage or analytical testing.Type: ApplicationFiled: January 30, 2012Publication date: August 2, 2012Applicant: LIFE TECHNOLOGIES CORPORATIONInventor: Matthew John BAKER
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Patent number: 8211950Abstract: The present invention relates to novel amphoteric ion exchangers which possess not only phthalamide groups of the formula (I) but also —(CH2)mNR1R2 groups and/or if appropriate —(CH2)mNR1R2R3 groups, wherein m is an integer from 1 to 4 and R1, R2, R3 in each case independently of one another are hydrogen, —CH3, —CH2CH3, —CH2CH2CH3, benzyl, —OCH2CH3 or —CH2CH2OH and X is H or Na or K, to a process for production thereof and also use thereof.Type: GrantFiled: October 10, 2008Date of Patent: July 3, 2012Assignee: LANXESS Deutschland GmbHInventors: Reinhold Klipper, Hans Karl Soest, Ulrich Litzinger, Michael Schelhaas, Georg Martin
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Publication number: 20120148773Abstract: Nucleophilic substitution reactions of halogenated polymers and cross-linking nucleophiles are used to produce thermoset ionomers. These cured ionomers are useful in adhesive, antimicrobial applications, as well as in polymer composites and polymer blends. Furthermore, these thermoset ionomers' ion pairs can bear reactive functionality, which provides access to further reactions that were unavailable using previous technology.Type: ApplicationFiled: December 9, 2011Publication date: June 14, 2012Inventors: J. Scott Parent, Ralph A. Whitney
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Publication number: 20120123002Abstract: A method is disclosed for purifying an antibody monomer, comprising providing a porous membrane comprising a hydrophobic porous substrate, a hydrophilic molecular chain of a different material from that of the porous substrate, immobilized on the surface of pores of the porous substrate, and a side chain of the molecular chain, containing a nitrogen atom to which one to three alkyl groups each having two or three carbon atoms are bonded; passing an antibody solution containing antibody aggregates of dimers or higher-order multimers through the porous membrane to adsorb the antibody aggregates to the porous membrane; and recovering the purified antibody monomer in the passed solution.Type: ApplicationFiled: June 29, 2010Publication date: May 17, 2012Applicants: ASAHI KASEI MEDICAL CO., LTD., ASAHI KASEI CHEMICALS CORPORATIONInventors: Naoyuki Shinohara, Takashi Ishihara, Hironobu Shorataki, Yoshiro Yokoyama
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Patent number: 8177982Abstract: The present invention relates to a method of producing novel monodisperse chelate resins based on crosslinked polymer beads containing aminomethyl groups and/or aminomethyl nitrogen heterocyclic groups that have a high uptake capacity for heavy metals and rapid kinetics.Type: GrantFiled: July 15, 2008Date of Patent: May 15, 2012Assignee: LANXESS Deutschland GmbHInventors: Reinhold Klipper, Michael Schelhaas, Stefan Neumann, Wolfgang Zarges
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Patent number: 8173713Abstract: A new class of membranes for use in protective clothing. More specifically, the present invention relates to a polymer-polymer membrane with an ionic polymer located within the nanopores of a porous polymer host membrane. A method for making the polymer-polymer membranes involves filling porous polymers with ionic polymers. The porous polymers may be fabricated by a template synthesis which involves sorption. The ionic polymers may be filled in the nanopores of the porous polymer by plasma-induced graft copolymerization of the ionic polymer with the porous polymeric host membrane.Type: GrantFiled: May 24, 2007Date of Patent: May 8, 2012Assignee: Drexel UniversityInventors: Yossef A. Elabd, Giuseppe R. Palmese
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Publication number: 20120065616Abstract: Multilayered films, particularly ultrathin multilayered films comprising cationic polymers which are useful for controlled release of anionic species, particularly for controlled release of nucleic acids. The multilayer films herein are useful for temporal controlled released of anionic species, particularly one or more anionic peptides, proteins, nucleic acids or other anionic biological agents. In one aspect, the invention relates to multilayer films which release anionic species (anions) with separate and/or distinct release profiles, particularly wherein the anions are one or more anionic peptides, proteins or nucleic acids or other anionic biological agents.Type: ApplicationFiled: November 21, 2011Publication date: March 15, 2012Inventors: David M. Lynn, Jingtao Zhang, Xianghui Liu
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Patent number: 8124660Abstract: A polymer electrolyte membrane is made from a polymer electrolyte and a coordination polymer, and finds use in a fuel cell. The polymer electrolyte membrane may be made by dissolving a polymer electrolyte in a solvent to provide a first solution, adding a coordination polymer to the first solution to yield a second solution, and forming the second solution into a film.Type: GrantFiled: May 21, 2008Date of Patent: February 28, 2012Assignees: Gkss-Forshungszentrum Geesthacht GmbH, Technische Universitat DresdenInventors: Dominique de Figueiredo Gomes, Suzana Nunes, Klaus-Viktor Peinemann, Stefan Kaskel, Volker Abetz
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Publication number: 20120035281Abstract: A phosphorus-adsorbing material is produced to include a polymer-based material modified with at least either of a primary and a secondary amine and a metal supported on the polymer-based material, and a phosphorus recovery system is structured by using the phosphorus-adsorbing material.Type: ApplicationFiled: August 11, 2011Publication date: February 9, 2012Inventors: Akiko SUZUKI, Hideyuki TSUJI, Shinji MURAI, Tatsuoki KOHNO, Katsuya YAMAMOTO, Shinobu MONIWA, Hidetake SHIIRE, Satoshi HARAGUCHI, Nobuyuki ASHIKAGA
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Publication number: 20120029098Abstract: Materials are provided that may be useful as ionomers or polymer ionomers, including compounds including bis sulfonyl imide groups which may be highly fluorinated and may be polymers.Type: ApplicationFiled: October 10, 2011Publication date: February 2, 2012Inventors: Steven J. Hamrock, Mark S. Schaberg, Neeraj Sharma, John E. Abulu
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Publication number: 20120024791Abstract: The present invention further is directed to the improved process for making by free radical polymerization a monodisperse, macroporous polymeric media with covalently bonded polymer chains. The media can be applied for chromatographic purification, resulting in polymer supports having improved protein binding capacity and resin selectivity, as well as methods relating to making and using the same.Type: ApplicationFiled: July 26, 2011Publication date: February 2, 2012Inventors: Martin J. Deetz, John J. Maikner
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Publication number: 20120024792Abstract: The present invention further is directed to the process for making a macroporous polymeric media with covalently bonded quaternary ammonium polymer chains. The media can be applied for chromatographic purification, resulting in porous substrates having improved protein binding capacity and resin selectivity, as well as methods relating to making and using the same.Type: ApplicationFiled: July 26, 2011Publication date: February 2, 2012Inventors: Martin J. Deetz, John J. Maikner
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Publication number: 20120021957Abstract: Method of adjusting the viscosity of a salt having a melting point of less than 100° C. at atmospheric pressure (referred to as ionic liquid for short), wherein an oligomeric or polymeric compound which has a content of at least 0.01 mol of covalently bound acid groups/100 g of compound with at least 1% of the acid groups being present as a salt with an organic cation comprising at least one heteroatom selected from among nitrogen, oxygen, sulfur and phosphorus is added to the ionic liquid.Type: ApplicationFiled: July 22, 2011Publication date: January 26, 2012Applicant: BASF SEInventors: Aurelie Alemany, Dirk Gerhard, Bolette Urtel
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Publication number: 20120009481Abstract: A room temperature crosslinkable polymer system comprising an anhydride containing polymer and an oxyalkylene amine and a polymer electrolyte derived therefrom are prepared and employed as ion conducting materials for batteries such as lithium ion battery, solar cells and electrochromic devices is disclosed.Type: ApplicationFiled: September 19, 2011Publication date: January 12, 2012Inventors: Zhiquang Song, Suruliappa G. Jeganathan, Jacqueline Lau, Rakesh Gupta
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Publication number: 20110275008Abstract: Solid anion exchange polymer electrolytes include chemical compounds comprising a polymer backbone with side chains that include guanidinium cations.Type: ApplicationFiled: July 19, 2011Publication date: November 10, 2011Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: Yu Seung Kim, Dae Sik Kim
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Publication number: 20110247981Abstract: This invention provides an adsorbent material capable of effectively trapping a target component in a sample solution and releasing the same, which has the satisfactory trapping capacity via hydrophobic interactions and via ion exchange reactions. The invention relates to an adsorbent material comprising a porous material of a polymer compound which is a copolymer obtained via copolymerization of a hydrophobic monomer (A), a hydrophilic monomer (B) capable of undergoing a second-order reaction, and a hydrophilic monomer (C) exhibiting a hydrogen-bonding capacity, and via introduction of an ion exchange group into a repeat unit derived from the hydrophilic monomer (B).Type: ApplicationFiled: December 11, 2009Publication date: October 13, 2011Inventors: Tetsuyoshi Ono, Yoshinori Inoue
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Publication number: 20110236289Abstract: When a disproportionated chlorosilane is to be produced by causing a starting material chlorosilane liquid to flow through a catalyst-packed layer which is packed with a weakly basic anion exchange resin as a disproportionation reaction catalyst to carry out a disproportionation reaction, before the disproportionation reaction is carried out, the disproportionation reaction catalyst is brought into contact with a processing gas obtained by diluting a chlorosilane with an inert gas to prevent the deterioration of the disproportionation reaction catalyst at the start of the reaction so as to carry out the disproportionation of the chlorosilane efficiently.Type: ApplicationFiled: December 22, 2009Publication date: September 29, 2011Inventors: Shouji Iiyama, Tomohiro Yamamoto, Yukihiro Takata, Shinichiro Koyanagi, Kanji Sakata
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Patent number: 7989514Abstract: A strong-acid cation exchange resin comprising a plurality of acid groups which are partially neutralized with a cation of formula (I); wherein R1 at each occurrence independently is hydrogen or a Ci-4-alkyl group, R2 at each occurrence independently is hydrogen, alkyl or aryl, R3 at each occurrence independently is hydrogen or alkyl or two vicinal groups R3 together form an aromatic ring, m is 1, 2, 3, 4, 5 or 6, n is 1, 2, 3 or 4, o is 1 or 2, and p is 1, 2 or 3, is useful in the production of bisphenols.Type: GrantFiled: July 18, 2007Date of Patent: August 2, 2011Assignee: Dow Global Technologies LLCInventor: Johann-Wilhelm Frey
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Publication number: 20110152389Abstract: A strong-acid cation exchange resin comprising a plurality of acid groups which are partially neutralized with a cation of formula (I); wherein R1 at each occurrence independently is hydrogen or a Ci-4-alkyl group, R2 at each occurrence independently is hydrogen, alkyl or aryl, R3 at each occurrence independently is hydrogen or alkyl or two vicinal groups R3 together form an aromatic ring, m is 1, 2, 3, 4, 5 or 6, n is 1, 2, 3 or 4, o is 1 or 2, and p is 1, 2 or 3, is useful in the production of bisphenols.Type: ApplicationFiled: July 18, 2007Publication date: June 23, 2011Inventor: Johann-Wilhelm Frey
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Patent number: 7964651Abstract: A proton conducting polymer includes a polymer backbone and a heterocyclic compound attached to the polymer backbone. The heterocyclic compound includes a sulfonyl functionality bonded to heterocyclic compound.Type: GrantFiled: December 21, 2006Date of Patent: June 21, 2011Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Georgia Tech Research CorporationInventors: Siwen Li, Zhen Zhou, Yuelan Zhang, Meilin Liu, Wen Li
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Publication number: 20110138935Abstract: It is a subject of the present invention to provide a novel polymer; a filler for measuring a perfluoro compound having an acidic group at terminal which comprises said polymer; a column filled with said filler; and a measuring method for a perfluoro compound having an acidic group at terminal by using said column; as well as a filler for measuring a drug comprising the above-described polymer; a column filled with said filler; and a measuring method for a drug by using said column.Type: ApplicationFiled: August 10, 2009Publication date: June 16, 2011Applicants: WAKO PURE CHEMICAL INDUSTRIES, LTD., NIPPON FILCON CO., LTD.Inventors: Yoshinori Inoue, Kimiko Yoshida, Mamoru Kubota, Hitoshi Uemori
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Publication number: 20110136925Abstract: The invention relates to a modified separating material having improved properties, to the preparation thereof, and to the use thereof for the separation of charged biopolymers from liquids.Type: ApplicationFiled: July 8, 2009Publication date: June 9, 2011Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventors: Heiner Graalfs, Lothar Britsch
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Publication number: 20110132844Abstract: The present invention relates to a method for improved removal of cations, preferably alkaline earth metals, in particular calcium and barium, from aqueous solutions using chelating resins having acetic acid and/or iminodiacetic acid groups having high dynamic absorption capacity for cations at a low residual content of the cations and high regeneration efficiency, to the chelating exchangers themselves, and also to uses thereof.Type: ApplicationFiled: September 27, 2010Publication date: June 9, 2011Applicant: LANXESS DEUTSCHLAND GmbHInventors: Reinhold Klipper, Stefan Neumann, Jens Stoll, Michael Schelhaas, Pierre Vanhoorne
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Publication number: 20110108488Abstract: The present invention relates to boron-selective resins containing glucamide structures, a method for production thereof and also use thereof for removing boron from liquids, preferably from seawater, drinking water or process waters in or from the electronics industry.Type: ApplicationFiled: November 2, 2010Publication date: May 12, 2011Applicant: LANXESS DEUTSCHLAND GMBHInventors: Pierre Vanhoorne, Michael Schelhaas
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Publication number: 20110100916Abstract: Articles that contain a solid support with a grafted chain extending from the solid support, methods of making these articles, and various uses of the articles are described. More specifically, the grafted chain has a functional group that can react with or interact with target compound. Alternatively, the functional group on the grafted chain can react with a modifying agent to provide another group that can react with or interact with the target compound. The grafted chains are attached to the solid support through a ring-opened azlactone group. The articles can be used to purify the target compound or to separate the target compound from other molecules in a sample.Type: ApplicationFiled: May 11, 2009Publication date: May 5, 2011Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Simon K. Shannon, Catherine A. Bothof, Babu N. Gaddam, Jerald K. Rasmussen, Richard B. Ross
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Publication number: 20110073547Abstract: The invention relates to a process for the preparation of a separating material having improved binding capacity, and to materials prepared and to the use thereof for the separation of charged or uncharged biopolymers from liquids.Type: ApplicationFiled: May 5, 2009Publication date: March 31, 2011Applicant: MERCK PATENT GESELLSCHAFTInventor: Matthias Joehnck
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Publication number: 20100307979Abstract: The present application relates to novel chelate resins which contain, as a functional group, quaternary nitrogen atoms in structures of the general formula (I) in which at least one of the radicals R1 to R3 represents an optionally substituted radical of the series consisting of picolyl, methylquinoline or methylpiperidine, m represents an integer from 1 to 4 and M represents the polymer matrix and X represents a counterion of the series consisting of hydroxide OH?, halide, preferably Cl?, Br?, or sulphate SO42?, a process for their preparation and the use thereof, in particular the use of the novel chelate resins in hydrometallurgy and electroplating.Type: ApplicationFiled: July 10, 2008Publication date: December 9, 2010Applicant: LANXESS DEUTSCHLAND GMBHInventors: Reinhold Klipper, Michael Schelhaas, Stefan Neumann, Duilio Rossoni, Wolfgang Zarges
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Patent number: 7829603Abstract: A fluorinated ion exchange polymer prepared by grafting at least one grafting monomer on to at least one base polymer, wherein the grafting monomer comprises structure 1a or 1b: wherein Z comprises S, SO2, or POR wherein R comprises a linear or branched perfluoroalkyl group of 1 to 14 carbon atoms optionally containing oxygen or chlorine, an alkyl group of 1 to 8 carbon atoms, an aryl group of 6 to 12 carbon atoms or a substituted aryl group of 6 to 12 carbon atoms; RF comprises a linear or branched perfluoroalkene group of 1 to 20 carbon atoms, optionally containing oxygen or chlorine; Q is chosen from F, —OM, NH2, —N(M)SO2R2F, and C(M)(SO2R2F)2, wherein M comprises H, an alkali cation, or ammonium; R2F groups comprises alkyl of 1 to 14 carbon atoms which may optionally include ether oxygens or aryl of 6 to 12 carbon atoms where the alkyl or aryl groups may be perfluorinated or partially fluorinated; and n is 1 or 2 for 1a, and n is 1, 2, or 3 for 1b.Type: GrantFiled: June 25, 2004Date of Patent: November 9, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Zhen-Yu Yang, Mark Gerrit Roelofs
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Patent number: 7811694Abstract: A polymer electrolyte membrane for a direct oxidation fuel cell includes a porous polymer supporter having a plurality of pores, and a hydrocarbon fuel diffusion barrier layer which is formed on the polymer supporter and contains an inorganic additive dispersed in a cation exchange resin.Type: GrantFiled: October 14, 2005Date of Patent: October 12, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Min-Kyu Song, You-Mee Kim, Ho-Jin Kweon, Hee-Woo Rhee
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Patent number: 7803846Abstract: The objective of the invention is to solve the problems of conventional polymer electrolyte membranes, including small ion-exchange capacity and low oxidation and methanol resistance. A polymer film substrate is irradiated with ?-rays, electron beams or other radiations to perform multi-graft polymerization with functional monomers and then the polymer film substrate containing the grafted molecular chains or the graft molecular chains into which sulfonic acid groups have been introduced is crosslinked by irradiation to produce a polymer electrolyte membrane that has outstanding oxidation resistance, dimensional stability, electrical conductivity and methanol resistance and which can be controlled in ion-exchange capacity over a wide range.Type: GrantFiled: August 30, 2005Date of Patent: September 28, 2010Assignees: Japan Atomic Energy Agency, Nitto Denko CorporationInventors: Masaru Yoshida, Masaharu Asano, Tetsuya Yamaki, Soji Nishiyama, Toshimitsu Tachibana, Yozo Nagai
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Publication number: 20100179235Abstract: Disclosed herein are novel compositions for treating or preventing upper GI tract disorders and protecting stratified squamous epithelium against injury by a noxious substance. The pharmaceutical composition comprises at least one bile acid sequestrant, alone or in combination with at least one proton pump inhibitor, and optionally one or more agent chosen from antacids, histamine H2-receptor antagonists, -aminobutyricacid-b (GABA-B) agonists, prodrugs of GABA-B agonists, and protease inhibitors.Type: ApplicationFiled: December 21, 2007Publication date: July 15, 2010Applicant: IRONWOOD PHARMACEUTICALSInventor: Mark Currie
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Patent number: 7754084Abstract: The present invention relates to heat-stable anion exchangers based on at least one aromatic monomer and at least one crosslinker having structural elements of the general formula (I) where Ak, Ak?, Ak? are in each case independently of one another identically or differently a C1-C18-alkyl radical, n is an even number between 5 and 18, x+y=2, where x is equal to 0 or 1, and X is Cl, Br, OH, HCO3, HSO4, ½ (SO4), ½ CO3, NO3, F, H2PO4, ½ HPO4, ? PO4 with the result that these anion exchangers, preferably in the OH form, withstand a working temperature of at least 60° C., preferably of at least 80° C., over a relatively long time, a process for production thereof and also use thereof.Type: GrantFiled: September 4, 2007Date of Patent: July 13, 2010Assignee: LANXESS Deutschland GmbHInventors: Pierre Vanhoorne, Wolfgang Podszun, Reinhold Klipper, Michael Schelhaas
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Patent number: 7737190Abstract: A fluorinated ion exchange polymer is prepared by grafting at least one grafting monomer derived from trifluorostyrene on to at least one base polymer in a organic solvent/water mixture. These ion exchange polymers are useful in preparing catalyst coated membranes and membrane electrode assemblies used in fuel cells.Type: GrantFiled: March 24, 2006Date of Patent: June 15, 2010Assignee: E.I. du Pont de Nemours and CompanyInventors: Mark Gerrit Roelofs, Zhen-Yu Yang, Amy Qi Han, legal representative
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Publication number: 20100129310Abstract: Stabilized desloratadine-containing pharmaceutical compositions are prepared using complexes formed by combining desloratadine and a resin in the acidic form.Type: ApplicationFiled: August 8, 2005Publication date: May 27, 2010Inventors: Pavak Rajnikanth Mehta, Indu Bushan, Vijay Dinanathji Nasare, Mailatur Sivaraman Mohan, Rahul Sudhakar Gawande, Ravinder Kodipyaka
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Publication number: 20100130626Abstract: A method for manufacturing an anion exchange resin, in which remaining of impurities and generation of decomposition products are suppressed and leachables are reduced, the method including the following steps (1-a) to (1-e) of: (1-a) obtaining a cross-linked copolymer by copolymerizing a monovinyl aromatic monomer and a cross-linkable aromatic monomer; (1-b) specifying the content of a specific leachable compound to be 400 ?g or less relative to 1 g of the cross-linked copolymer; (1-c) haloalkylating the cross-linked copolymer so as to introduce 80 percent by mole or less of haloalkyl group relative to the monovinyl aromatic monomer; (1-d) removing a specific leachable compound from the haloalkylated cross-linked copolymer; and (1-e) subjecting the haloalkylated cross-linked copolymer to a reaction with an amine compound.Type: ApplicationFiled: April 15, 2008Publication date: May 27, 2010Applicants: KURITA WATER INDUSTRIES LTD., MITSUBISHI CHEMICAL CORPORATIONInventors: Takeo Fukui, Tetsuo Mizuniwa, Kazuhiko Tokunaga, Masako Yasutomi
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Publication number: 20100029914Abstract: To provide a medium suitable for high speed/high resolution, rich in hydrophilicity and resistant to a high concentration aqueous alkaline solution. A medium comprising crosslinked polymer particles containing from 20 to 95 mol % of repeating units derived from a (meth)acryloyl monomer represented by the formula (1): wherein R2 is a hydrogen atom or a C1-4 alkyl group, R1 is —NR3—R4-R5 or —O—R4-R5, R3 is a hydrogen atom or a C1-4 alkyl group, R4 is a C6-15 alkylene group containing an alicyclic ring or a C4-8 linear alkylene group, and R5 is a halogen atom, an alcoholic OH group, an amino group, a glycidyl group or an epoxy group.Type: ApplicationFiled: June 8, 2006Publication date: February 4, 2010Applicant: TOSOH CORPORATIONInventors: Katsuo Komiya, Yuji Kubo, Masazumi Hasegawa, Sanae Hasegawa
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Patent number: 7625955Abstract: A porous article which is formed from a polymeric material, in which characteristics of the surface of the article provided by the polymeric material are modified by having grafted to it chains of polymerized vinyl monomer units, in which the chains each comprise a number of units of a first vinyl monomer and include a unit of a second vinyl monomer which is different from the first vinyl monomer. Preferably, the ratio of the number of units of the first vinyl monomer in each chain to the number of units of the second vinyl monomer is not more than about 60. When the number of second vinyl monomer units in each chain is one, the mean number of first vinyl monomer units in each chain will be not more than 60.Type: GrantFiled: August 11, 2003Date of Patent: December 1, 2009Assignee: Freudenberg Nonwovens LPInventors: Giovanni Gentilcore, Tracy Hoar