Organic Compound Contains N=n Or N-n Group Patents (Class 526/218.1)
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Publication number: 20100159767Abstract: Processes and products utilizing (meth)acrylic esters of poly(trimethylene ether) glycol are provided. Products that can be made include ceramic materials, personal care products, inks, coatings, fabrics, and other articles that can be made from reaction products of (meth)acrylic ester of poly(trimethylene ether) glycol with certain monomers.Type: ApplicationFiled: October 28, 2009Publication date: June 24, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Gyorgyi Fenyvesi, Raja Hari Poladi, Hari Babu Sunkara
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Patent number: 7741422Abstract: Interpolymers of 1-99 mol % vinyl fluoride and 99-1 mol % of at least one highly fluorinated monomer such as tetrafluoroethylene are disclosed. The interpolymers are characterized by the presence of ionic end groups and are prepared by polymerizing VF and fluorinated monomer in water with water-soluble free-radical initiators such as azoamidine initiators or persulfate initiators at temperatures within the range of 60 to 100° C. and reactor pressures within the range of 1 to 12 MPa (145 to 1760 psi). The invention further provides for protective self-supporting films and coatings formed from nonaqueous dispersions of the interpolymers, both for use on the surfaces of substrates including metal, plastic, ceramic, glass, concrete, fabric and wood.Type: GrantFiled: March 7, 2008Date of Patent: June 22, 2010Assignee: E. I. du Pont de Nemours and CompanyInventor: Ronald Earl Uschold
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Patent number: 7741421Abstract: The methods for producing macromolecule identifying polymers according to the present invention comprise the steps of polymerizing a starting monomer in an aqueous solution in the presence of a macromolecule, a crosslinking agent, and a radical polymerization initiator to produce a polymer containing the macromolecule in its interior; and removing the macromolecule from the polymer containing the macromolecule to thereby produce the macromolecule identifying polymer having a molecular imprint of the macromolecule. In this method, the crosslinker has a solubility in water at 25° C. of 100% by mass or higher.Type: GrantFiled: March 5, 2004Date of Patent: June 22, 2010Assignee: Reqmed Company, Ltd.Inventors: Norihiko Minoura, Alexandre Rachkov, Tadashi Matsumoto, Kaori Endo, Hu Minjie
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Publication number: 20100144958Abstract: The present invention relates to a branched polymer obtainable an addition polymerisation process, preferably a free-radical polymerisation process, which is the reaction product of: (a) an initiator, optionally but preferably a free-radical initiator, (b) optionally but preferably a compatible chain transfer agent (E and E?), (c) at least one ethylenically monounsaturated monomer (G and/or J), (d) at least one ethylenically polyunsaturated monomer (L), wherein at least one of (a)-(d) has a molecular weight of at least 1000 Daltons, and the mole ratio of (d) to (c) is greater than 0.0005 to 1.Type: ApplicationFiled: December 10, 2007Publication date: June 10, 2010Applicants: UNILEVER PLC, UNILEVER N.V.Inventors: Paul Hugh Findlay, Steven Paul Rannard, Brodyck James Lachlan Royles, Jonathan Victor Mark Weaver
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Publication number: 20100081089Abstract: The present invention relates to a photosensitive resin composition that includes a polymer prepared by using a macromonomer as an alkali soluble resin. The photosensitive resin composition is used for various types of purposes such as a photoresist for preparing a color filter, an overcoat photoresist, a column spacer, and an insulating material having a light blocking property, and improves physical properties such as residue or not, chemical resistance, and heat resistance of the photoresist.Type: ApplicationFiled: April 11, 2008Publication date: April 1, 2010Inventors: Han-Soo Kim, Min-Young Lim, Yoon-Hee Heo, Ji-Heum Yoo, Sung-Hyun Kim, Kwang-Han Park
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Publication number: 20100063231Abstract: A hyperbranched polymer having pendent olefinic groups and comprising polymer units derived from one or more terminally-unsaturated, acyclic aliphatic diene and polymer units derived from maleic anhydride. Optionally, the hyperbranched polymer may further comprise polymer units derived from one or more 1-alkenes and/or a chain transfer agent. A process to prepare the hyperbranched polymer comprises contacting maleic anhydride with at least one terminally unsaturated acyclic aliphatic diene having at least 7 carbon atoms in the presence of an effective amount of a radical initiator in an aprotic solvent under dilute conditions.Type: ApplicationFiled: July 15, 2009Publication date: March 11, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Stephen Ernest Jacobson, Patricia Metzger Cotts
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Patent number: 7638587Abstract: The present disclosure concerns embodiments of a method of synthesizing polymers using verdazyl agents selected for their property of being moderately unstable free radicals. In one embodiment of the invention a method of synthesizing free standing polymers from suitably selected polymerizable subunits, such as monomers, is provided. In another embodiment of the invention a combination for the synthesis of free standing polymers from suitably selected polymerizable subunits using moderately unstable verdazyls is provided. Using moderately unstable verdazyls permits lower reaction temperatures and faster reaction times, while yielding polymers with low polydispersity.Type: GrantFiled: April 18, 2007Date of Patent: December 29, 2009Assignees: University of Victoria Innovation and Development CorporatinInventors: Robin Gary Hicks, Michael Georges
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Publication number: 20090318649Abstract: The present invention discloses styrene-maleic anhydride copolymers preparations using solventless techniques. The solventless method resulted in reduced amounts of residues, such as unreacted styrene and/or maleic anhydride monomers, which makes the copolymers particularly suitable for bioapplications.Type: ApplicationFiled: March 26, 2009Publication date: December 24, 2009Inventors: Mircea Dan Bucevschi, Monica Colt
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Publication number: 20090311531Abstract: The present invention relates to a large-sized vinyl chloride seed with an average particle size of 0.65 to 1.5 ?m, a vinyl chloride resin with improved low-viscosity properties, and preparation methods thereof. The preparation of the large-sized vinyl chloride seed includes adding a vinyl chloride monomer, an emulsifier, and a polymerization initiator to an aqueous medium; homogenizing the mixed solution using a rotor-stator type homogenizer; and subjecting the resultant monomer droplets to a polymerization reaction.Type: ApplicationFiled: June 10, 2009Publication date: December 17, 2009Applicant: LG CHEM, LTD.Inventors: Kyung Seog Youk, Hyun Jin Shin, Han Hong Kim
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Publication number: 20090292092Abstract: A hyperbranched polymer having pendent olefinic groups and comprising polymer units derived from one or more terminally-unsaturated, acyclic aliphatic diene and polymer units derived from maleic anhydride. Optionally, the hyperbranched polymer may further comprise polymer units derived from one or more 1-alkenes and/or a chain transfer agent. A process to prepare the hyperbranched polymer comprises contacting maleic anhydride with at least one terminally unsaturated acyclic aliphatic diene having at least 7 carbon atoms in the presence of an effective amount of a radical initiator in an aprotic solvent under dilute conditions.Type: ApplicationFiled: July 15, 2009Publication date: November 26, 2009Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Stephen Ernest Jacobson, Patricia Metzger Cotts
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Patent number: 7619131Abstract: The present invention provides a translucent absorbent composite having a substrate with a light transmittance of at least about 60% and a flexible superabsorbent binder polymer composition applied to the substrate. The polymer composition may be prepared from the reaction product of a monomer solution including at least 15% by mass monoethylenically unsaturated monomer selected from carboxylic acid, carboxylic acid salts, sulphonic acid, sulphonic acid salts, phosphoric acid, or phosphoric acid salts; an acrylate or methacrylate ester that contains an alkoxysilane functionality; a copolymerizable hydrophilic glycol containing an ester monomer; an initiator system; and a neutralizing agent. The unsaturated monomer is neutralized to at least 25 mol % and the flexible superabsorbent binder polymer composition has a residual monoethylenically unsaturated monomer content of less than about 1000 ppm. The absorbent composite has a light transmittance of at least 45%.Type: GrantFiled: December 2, 2005Date of Patent: November 17, 2009Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Dave Allen Soerens, Angela Jones Lang, Iqbal Ahmed, Scott J. Smith
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Publication number: 20090221729Abstract: This invention provides a water-soluble macromonomer having terminal unsaturation obtained by polymerization of monomers in the presence of inclusion complex of chain transfer agent in aqueous system. Hydrophobic chain transfer agent AMSD forms an inclusion complex with methylated cyclodextrin. The complexation enhances its solubility in water and enables the polymerization of water-soluble monomers in aqueous medium. After polymerization cyclodextrin is removed and the macromer with terminal unsaturation obtained can be used further for copolymerization with any vinyl monomer.Type: ApplicationFiled: March 28, 2007Publication date: September 3, 2009Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCHInventors: Mohan Gopalkrishna Kulkarni, Prerana Maruti Patil
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Publication number: 20090131549Abstract: A process for preparing polyvinylpyrrolidones by free-radically initiated polymerization in the presence of an initiator found, which comprises performing the polymerization as a spray or droplet polymerization.Type: ApplicationFiled: November 14, 2008Publication date: May 21, 2009Applicant: BASF SEInventors: Dennis Losch, Ralf Widmaier, Volker Seidl, Hans-Ulrich Moritz, Karim Asif, Silke Biedasek
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Publication number: 20090104371Abstract: A film forming composition is provided that includes (A) a radical polymerization initiator, and (B-1) a compound represented by Formula (1) below and/or a polymer polymerized using at least a compound represented by Formula (1) below, and/or (B-2) a compound represented by Formula (2) below and/or a polymer polymerized using at least a compound represented by Formula (2) below (in Formula (1), the two R1s denote groups consisting only of carbon and hydrogen, which may be identical to or different from each other, and may be linked to each other to form a 6- or higher-membered ring structure, and the R2s denote hydrogen atoms or are represented by Formula (3) below and may be identical to or different from each other provided that at least one of the R2s is represented by Formula (3)) (in Formula (2), the two R4s and the two R5s denote groups consisting only of carbon and hydrogen, which may be identical to or different from each other, R4 and R4, and R5 and R5 may be linked to each other to form a 6-Type: ApplicationFiled: September 16, 2008Publication date: April 23, 2009Applicant: FUJIFILM CORPORATIONInventors: Hidetoshi Hiraoka, Makoto Muramatsu
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Publication number: 20090098430Abstract: Polymer with high molecular weight which can be obtained by a method, in which a composition is polymerised by free-radical polymerisation which, based on its total weight, comprises at least 80.0% by weight of ethylenically unsaturated compounds, characterized in that the composition contains at least one monomer comprising phosphonic acid groups and/or sulphonic acid groups. The polymer has a weight average of the degree of polymerisation of more than 300 and due to its chemical and physical properties, is particularly suitable for polymer electrolyte membranes (PEM) in so-called PEM fuel cells.Type: ApplicationFiled: October 28, 2006Publication date: April 16, 2009Inventors: Oemer Uensal, Joerg Belack, Ivan Schopov, Vesselin Sinigersky, Hhristo Bratschkov, Stoicho Schenkov
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Patent number: 7514513Abstract: A polymer obtained by polymerizing a compound represented by formula (I) in a presence of a polymerization accelerator; a film-forming composition comprising the polymer; an insulating film formed by utilizing the composition; and an electronic device, in formula (I), R1 and R2 each independently represents a substituent containing a carbon-carbon triple bond; X1 and X2 each independently represents a substituent except for a substituent containing a carbon-carbon triple bond; l and m each independently represents an integer of 0 to 15, provided that l and m are not 0 at the same time; and p and n each independently represents an integer of 0 to 14.Type: GrantFiled: August 11, 2006Date of Patent: April 7, 2009Assignee: FUJIFILM CorporationInventor: Yasufumi Watanabe
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Publication number: 20090088533Abstract: 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: ApplicationFiled: October 20, 2008Publication date: April 2, 2009Applicant: HYDRO-QUEBECInventors: Bruno Michel Ameduri, Abdellatif Manseri, Mario Boucher
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Patent number: 7473754Abstract: The present invention is directed to a novel polymerizable organic composition comprising one or more radically polymerizable monomers with at least one radically polymerizable monomer having at least two (meth)acryloyl groups that have backbone linkages selected from thiourethane linkages, dithiourethane linkages, combinations of thiourethane linkages and dithiourethane linkages. The present invention is also directed to polymerizates prepared from the polymerizable organic composition, shaped articles prepared from the polymerizable compositions, and photochromic articles that may be prepared from the polymerizable organic composition of the present invention.Type: GrantFiled: October 17, 2000Date of Patent: January 6, 2009Assignee: PPG Industries Ohio, Inc.Inventors: Michael O. Okoroafor, Robert A. Smith, Marvin J. Graham, Robert D. Herold
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Publication number: 20080281058Abstract: A process for producing a polymer latex includes a step of mixing at least one kind of polymerizable monomer with water and a polymerization initiator to perform a polymerization, wherein the at least one kind of polymerizable monomer includes an acrylonitrile in an amount of 50 mass % or more based on a total amount of the at least one kind of polymerizable monomer.Type: ApplicationFiled: December 19, 2007Publication date: November 13, 2008Applicant: FUJIFILM CORPORATIONInventor: Katsumi Araki
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Publication number: 20080214761Abstract: An insulating film forming composition, includes: a polymerized substance obtained by dissolving a cage-type silsesquioxane compound having two or more unsaturated groups as substituents in an organic solvent to give a concentration of 12 mass % or less, and polymerizing the cage-type silsesquioxane compound in presence of a polymerization initiator, wherein the polymerized substance obtained by reacting the cage-type silsesquioxane compound having two or more unsaturated groups as substituents totally amounts to 70 mass % or greater of a solid component contained in the insulating film forming composition.Type: ApplicationFiled: March 3, 2008Publication date: September 4, 2008Applicant: FUJIFILM CORPORATIONInventors: Kensuke MORITA, Makoto MURAMATSU
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Patent number: 7399813Abstract: A flexible superabsorbent binder polymer composition including a monoethylenically unsaturated polymer, such as carboxylic acid, sulphonic acid, or phosphoric acid, or salts thereof, and an acrylate or methacrylate ester that contains an alkoxysilane functionality, or a monomer capable of co-polymerization with a compound containing a trialkoxysilane functional group and subsequent reaction with water to form a silanol group wherein the flexible superabsorbent binder polymer composition has a residual monoethylenically unsaturated monomer of less than about 1000 ppm. The flexible superabsorbent binder polymer composition is particularly suitable for use in manufacturing absorbent articles. A method of making the flexible superabsorbent binder polymer composition includes preparing a monomer solution, adding the monomer solution to an initiator system, and activating a polymerization initiator within the initiator system.Type: GrantFiled: July 27, 2007Date of Patent: July 15, 2008Assignee: Stockhaussen, Inc.Inventors: Angela Jones Lang, Dave Allen Soerens, Iqbal Ahmed, Scott J. Smith
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Publication number: 20080154001Abstract: There is provided a vinylpyrrolidone-based copolymer having as essential components N-vinylpyrrolidone and hydroxyl group-containing (meth)acrylate, which gives a favorable crosslinked coating film, and a method for production by which the copolymer is easily obtained. A vinylpyrrolidone-based copolymer of the present invention contains a constitutional unit derived from N-vinylpyrrolidone and a constitutional unit derived from hydroxyl group-containing (meth)acrylate at a specific ratio, in which a K value according to Fikentscher is 12 or more, water insoluble matter is 0.5% by mass (on the basis of solid content) or less, and each content of iron, nickel, chromium, sodium and calcium is 500 ppb (on the basis of mass: the same hereinafter) or less, or electrical conductivity of a 10% by mass-aqueous solution of the vinylpyrrolidone-based copolymer is 35 ?S/cm or less.Type: ApplicationFiled: October 18, 2007Publication date: June 26, 2008Inventors: Daisuke Imai, Keiko Izumi, Yoshitomo Nakata
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Patent number: 7378475Abstract: Interpolymers of 1-99 mol % vinyl fluoride and 99-1 mol % of at least one highly fluorinated monomer such as tetrafluoroethylene are disclosed. The interpolymers are characterized by the presence of ionic end groups and are prepared by polymerizing VF and fluorinated monomer in water with water-soluble free-radical initiators such as azoamidine initiators or persulfate initiators at temperatures within the range of 60 to 100° C. and reactor pressures within the range of 1 to 12 MPa (145 to 1760 psi). The invention further provides for protective self-supporting films and coatings formed from nonaqueous dispersions of the interpolymers, both for use on the surfaces of substrates including metal, plastic, ceramic, glass, concrete, fabric and wood.Type: GrantFiled: March 11, 2002Date of Patent: May 27, 2008Assignee: E. I. du Pont de Nemours and CompanyInventor: Ronald Earl Uschold
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Patent number: 7335713Abstract: A process of making the flexible superabsorbent binder polymer composition includes preparing a preneutralized monomer solution having at least about 40 mol % degree of neutralization, preparing a monomer solution including monoethylenically unsaturated monomers, one of which includes an alkyloxysilane functionality, preparing initiator system solutions and adding the solutions to the monomer solution, mixing the foregoing solutions into a polymerization solution, cooling the polymerization solution, and post neutralizing the polymer.Type: GrantFiled: November 17, 2006Date of Patent: February 26, 2008Assignee: Stockhausen, Inc.Inventors: Angela Jones Lang, Dave Allen Soerens, Iqbal Ahmed, Scott J. Smith, Michael Ralph Lostocco, W. Clayton Bunyard
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Patent number: 7312286Abstract: A flexible superabsorbent binder polymer composition including a monoethylenically unsaturated polymer, such as carboxylic acid, sulphonic acid, or phosphoric acid, or salts thereof, and an acrylate or methacrylate ester that contains an alkoxysilane functionality, or a monomer capable of co-polymerization with a compound containing a trialkoxysilane functional group and subsequent reaction with water to form a silanol group wherein the flexible superabsorbent binder polymer composition has a residual monoethylenically unsaturated monomer of less than about 1000 ppm. The flexible superabsorbent binder polymer composition is particularly suitable for use in manufacturing absorbent articles. A method of making the flexible superabsorbent binder polymer composition includes preparing a monomer solution, adding the monomer solution to an initiator system, and activating a polymerization initiator within the initiator system.Type: GrantFiled: December 2, 2005Date of Patent: December 25, 2007Assignee: Stockhausen, Inc.Inventors: Angela Jones Lang, Dave Allen Soerens, Iqbal Ahmed, Scott J. Smith
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Publication number: 20070237956Abstract: A process for producing microspheres was developed that provides microspheres with new combined properties of high density, low fracture, high swell capacity, rapid swell, and deformability following swell. The process is reliable and high yielding, and makes use of a low temperature azo initiator and a small molecule chlorinated solvent as the organic phase. The microsphere preparation made using the process is particularly useful in medical treatments such as embolization.Type: ApplicationFiled: April 5, 2007Publication date: October 11, 2007Inventors: Garret D. Figuly, Surbhi Mahajan, Rinaldo S. Schiffino
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Patent number: 7265159Abstract: Process for preparing monodisperse weakly basic or optionally strongly basic anion exchangers of the poly(meth)acrylamide type, the ion exchangers themselves and their use.Type: GrantFiled: July 22, 2004Date of Patent: September 4, 2007Assignee: Bayer AktiengesellschaftInventors: Reinhold Klipper, Olaf Halle, Claudia Schmid, Wolfgang Podszun, Rüdiger Seidel, Hans-Karl Soest
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Patent number: 7196150Abstract: Process for free-radical polymerization in the presence of a regulator which, following free-radical H-abstraction to form an aromatic system, eliminates a free-radical leaving group which starts a new free-radical chain.Type: GrantFiled: December 1, 2003Date of Patent: March 27, 2007Assignee: BASF AktiengesellschaftInventor: Wolfgang Gaschler
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Patent number: 7125938Abstract: A polymerization process comprising initiating a first polymerization of monomers using an initiator functionalized with an ATRP initiating site, wherein the first polymerization is selected from the group of cationic polymerization, anionic polymerization, conventional free radical polymerization, metathesis, ring opening polymerization, cationic ring opening polymerization, and coordination polymerization to form a macroinitiator comprising an ATRP initiating site and further initiating an ATRP polymerization of radically polymerizable monomers using the macroinitiator comprising an ATRP initiating site. Novel block copolymers may be formed by the disclosed method.Type: GrantFiled: February 18, 2004Date of Patent: October 24, 2006Assignee: Carnegie Mellon UniversityInventors: Krzysztof Matyjaszewski, Scott G. Gaynor, Simion Coca
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Patent number: 7112639Abstract: A copolymer containing repeat units formed from the monomers (I) and (II), wherein each R1, if present, is independently hydrogen or hydrocarbyl; r is 0, 1 or 2; s is either 2 or 3; R2–R4 are each independently hydrogen or hydrocarbyl; R5 and R6 are each independently hydrogen, halo or hydrocarbyl; Pd? is the anion formed by loss of a proton from a proton donating group Pd—H; Z is either a bond or hydrocarbyl; R7 and R8 are each independently hydrogen, halo or hydrocarbyl; and either (a) A is an electron accepting group and W is either hydrogen or hydrocarbyl, (b) W is an electron accepting group and A is either a bond or hydrocarbyl or (c) both A and W are electron accepting groups. The invention also provides a method for preparing the copolymer by polymerising a mixture of (I) and (II) or their non-ionised precursors, preferably by exposure to ultraviolet radiation.Type: GrantFiled: March 30, 2001Date of Patent: September 26, 2006Assignee: Qinetiq LimitedInventor: Alan William Hall
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Patent number: 7098280Abstract: The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium.Type: GrantFiled: July 21, 2005Date of Patent: August 29, 2006Assignee: The Goodyear Tire & Rubber CompanyInventors: Dane Kenton Parker, Frank James Feher, Viswanath Mahadevan
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Patent number: 7077964Abstract: The present invention relates to a process for preparing novel, monodisperse ion exchangers having chelating functional groups, and their use for adsorbing metal compounds, in particular, heavy metal compounds and noble metal compounds, and also for extracting alkaline-earth metals from saline solutions from alkali metal chloride electrolysis.Type: GrantFiled: October 17, 2003Date of Patent: July 18, 2006Assignee: Bayer AktiengesellschaftInventors: Reinhold Klipper, Werner Strüver, Ulrich Schnegg, Bruno Hees, Bernhard Lehmann, Holger Lütjens
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Patent number: 6992156Abstract: The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium.Type: GrantFiled: November 25, 2003Date of Patent: January 31, 2006Assignee: The Goodyear Tire & Rubber CompanyInventors: Dane Kenton Parker, Frank James Feher, Viswanath Mahadevan
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Patent number: 6958368Abstract: The present invention relates to new cure accelerators for anaerobic curable compositions. These anaerobic cure accelerators are generally sulfinimides and oxygen and sulfur derivatives thereof, sulfonimides and oxygen and sulfur derivatives thereof, sulfonamides and oxygen and sulfur derivatives thereof, and oxygen and sulfur analogues of sulfimides.Type: GrantFiled: May 31, 2002Date of Patent: October 25, 2005Assignee: Henkel CorporationInventors: Philp T. Klemarczyk, Karen R. Brantl, Andrew D. Messana
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Patent number: 6924317Abstract: The present invention relates to a process for producing monodisperse anion-exchanger gels with high stability, purity and coarse particle size greater than 800 ?m starting from a monodisperse bead polymer with a swelling index of from 2.5 to 7.5 and more than one subsequent feed procedure without any separation between the polymerization steps and then modifying to give the anion exchanger.Type: GrantFiled: April 1, 2003Date of Patent: August 2, 2005Assignee: Bayer AktiengesellschaftInventors: Lothar Feistel, Gerold Schade, Hubertus Mittag
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Patent number: 6919415Abstract: Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.Type: GrantFiled: August 15, 2003Date of Patent: July 19, 2005Assignee: Cambridge Display Technology Ltd.Inventors: Andrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend
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Patent number: 6852812Abstract: A process is presented for the preparation of a latex by the emulsion polymerization at a temperature of between 30 and 90 C. of at least one ethylenically unsaturated monomer in the presence of at least one surfactant and of a seed of polymer particles with a diameter of between 200 and 450 nm. The seed particles represent from 5-25% by weight of the total weight of the monomer and seed. The polymerization is initiated by a mixed water-soluble/fat-soluble system. Also included are lattices obtained from this process.Type: GrantFiled: March 11, 2004Date of Patent: February 8, 2005Assignee: AtofinaInventors: Isabelle Betremieux, Karine Loyen, Nathalie Meeschaert, Pierre Nogues, Martine Schneider
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Patent number: 6844406Abstract: The present invention provides novel low molecular weight, high functionality number, polymers. The polymers may be made, for example, by heating (preferably, to a temperature of between about 130° C. and 180° C.) one or more ethylenically unsaturated monomers in the presence of a substantially aprotic solvent system; and maintaining the temperature for a time sufficient to polymerize the monomers to a preferred monomer to polymer conversion percentage of at least about 95 percent by weight. In a presently preferred embodiment, the polymer has a weight average molecular weight between about 900 and 7,000 Dalton and a functionality number of at least 100. The process is also preferably substantially free of chain transfer agents.Type: GrantFiled: October 4, 2001Date of Patent: January 18, 2005Assignee: Valspar Sourcing, Inc.Inventors: John H. Mazza, Jeffrey Niederst, Thomas R. Mallen
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Patent number: 6835762Abstract: The present invention provides a new class of materials effective as cure accelerators for anaerobic curable compositions. The addition of these materials into anaerobic adhesives as a replacement for conventional curatives, such as acetyl phenyl hydrazine and maleic acid or toluidines, surprisingly provides at least comparable cure speeds and physcial properties for the reaction products formed therefrom.Type: GrantFiled: May 31, 2002Date of Patent: December 28, 2004Assignee: Henkel CorporationInventors: Philp T. Kelmarczyk, Karen R. Brantl
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Patent number: 6762248Abstract: An epoxy group-containing acrylic resin for a powder coating is prepared by suspension polymerization at a temperature of at least 80° C. and a pressure of at least 2 kg/cm2 with a vinyl monomer mixture comprising from 10-60% by weight of epoxy group-containing vinyl monomers, from 10-60% by weight of alkyl (meth)acrylate(s), and other vinyl monomer(s). The epoxy group-containing acrylic resin particles possess the following characteristics: i) a weight average molecular weight of from 3000-20,000; ii) an epoxy equivalent of from 350-1200 g/eq; iii) 1000 ppm or less of volatile components; iv) a mean particle diameter of from 80-800 &mgr;m; v) at least 95% by weight of the particles having a long diameter R:short diameter r ratio within the parameters 1<R/r<1.2; and vi) 5% by weight or less of the particles having a long diameter R of less than 62 &mgr;m and 5% by weight or less of particles having a short diameter r of more than 1000 &mgr;m.Type: GrantFiled: November 22, 2002Date of Patent: July 13, 2004Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoko Harada, Motoshi Inagaki, Koji Shimizu, Noriyuki Tajiri
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Patent number: 6759488Abstract: The invention refers to a molecularly imprinted polymer, a method of preparing a molecularly imprinted polymer material, and the use thereof. According to the invention a support comprising at least one monomer, and a template, in a polymerization medium is polymerized with a free radical initiator, whereafter the template is removed from the molecularly imprinted polymer obtained. The polymerization is confined to the surface of the support, preferably by confining the free radical initiator to the support by bonding adsorption. The molecularly imprinted polymer may be used in chromatography, for separations, in chemical sensors, in molecular recognition as stationary phase in capillaries, in selected sample enrichment or in catalysis.Type: GrantFiled: February 21, 2002Date of Patent: July 6, 2004Assignee: MIP Technologies ABInventors: Börje Sellergren, Claudia Sulitzky, Bärbel Rückert
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Publication number: 20040106727Abstract: The invention relates to a method for preparing butadiene-based aqueous dispersions in the presence of at least one azocarboxylic acid ester.Type: ApplicationFiled: January 13, 2004Publication date: June 3, 2004Inventors: Damien Colombie, Frederic Lemahieu, Denis Temboun N' Zudie
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Publication number: 20040082744Abstract: The present invention relates to a process for preparing novel, monodisperse ion exchangers having chelating functional groups, and their use for adsorbing metal compounds, in particular, heavy metal compounds and noble metal compounds, and also for extracting alkaline-earth metals from saline solutions from alkali metal chloride electrolysis.Type: ApplicationFiled: October 17, 2003Publication date: April 29, 2004Inventors: Reinhold Klipper, Werner Struver, Ulrich Schnegg, Bruno Hees, Bernhard Lehmann, Holger Lutjens
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Patent number: 6723811Abstract: Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.Type: GrantFiled: April 28, 2000Date of Patent: April 20, 2004Assignee: Cambridge Display Technology Ltd.Inventors: Andrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend
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Patent number: 6713538Abstract: A post-treatment process for making a water-resistant polymeric coating composition or a strongly-swellable polymeric gel includes providing a stable, aqueous two-phase polymeric composition by the steps of forming a reaction mixture in a reaction vessel which includes a water-soluble vinyl monomer, optionally with one or more water-soluble comonomers, first amount of a crosslinking agent, and water, heating the mixture, then periodically adding a predetermined amount of an initiator, and polymerizing at about 30-130° C., optionally removing the resultant two-phase composition from the reaction vessel, adding a predetermined amount of an additional crosslinker or proteinaceous compound thereto, optionally coating the mixture onto a support, and optionally heating to further polymerize the mixture.Type: GrantFiled: June 15, 2001Date of Patent: March 30, 2004Assignee: ISP Investments Inc.Inventors: David K. Hood, Stephen L. Kopolow, Michael Tallon, Yoon Tae Kwak, Laurence Senak, Drupesh Patel, John Mc Kittrick
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Publication number: 20040059077Abstract: Optical devices fabricated from solvent processible polymers suffer from susceptibility to solvents and morphological changes. A semiconductive polymer capable of luminescence in an optical device is provided. The polymer comprises a luminescent film-forming solvent processible polymer which contains cross-linking so as to increase its molar mass and to resist solvent dissolution, the cross-linking being such that the polymer retains semiconductive and luminescent properties.Type: ApplicationFiled: August 15, 2003Publication date: March 25, 2004Applicant: Cambridge Display Technology Ltd.Inventors: Andrew Bruce Holmes, Xiao-Chang Li, Stephen Carl Moratti, Kenneth Andrew Murray, Richard Henry Friend
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Patent number: 6710146Abstract: The present invention relates to a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b1) at least one multifunctional triazinyl based 2,2,6,6 tetramethylpiperidine-1-oxyl and a free radical initiator or b2) at least one multifunctional triazinyl based 2,2,6,6 tetramethylpiperidine-1-oxyl-ether. Further aspects of the present invention are a process for polymerizing ethylenically unsaturated monomers, the (co)polymers obtainable by this process and the use of multifunctional triazinyl based 2,2,6,6 tetramethylpiperidine-1-oxyls in combination with a free radical initiator, or a multi-functional triazinyl based 2,2,6,6 tetramethylpiperidine-1-oxyl-ethers for controlled polymerization. In a particularly preferred embodiment at least one additional heating step at a temperature from 140 to 280° C. is applied after polymerization is completed.Type: GrantFiled: April 3, 2003Date of Patent: March 23, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Wiebke Wunderlich, Rudolf Pfaendner, Raymond Seltzer, James Peter Galbo
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Publication number: 20030232938Abstract: A method of free radical polymerization and for cleaving a thio group from the resulting polymer is provided. The method comprises forming a mixture of one or more monomers, at least one free radical source and a control agent, wherein the control agent comprises a thio moiety. The mixture is polymerized, and the resulting polymer is mixed with a free radical source, and optionally an addition fragmentation agent under cleavage conditions. The thio moiety on the polymer is replaced with a group of interest.Type: ApplicationFiled: April 3, 2003Publication date: December 18, 2003Applicant: Symyx Technologies, Inc.Inventors: Dominique Charmot, Han Ting Chang, Wenyue Wang, Marcelo Piotti
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Publication number: 20030232939Abstract: Control agents that have a nitrogen-nitrogen bond covalently bonded to a thiocarbonyl moiety are provided for living-type free radical polymerization of a wide variety of monomers. These control agents provide superior properties for control of the polymerization and/or the properties of the polymers obtained and/or the monomers that may be polymerized. In some embodiments, a bulky group is pendant off the activated thiocarbonyl portion of the control agents. Multifunctional control agents provide the opportunity for a variety of structurally unique polymers, including block copolymers, stars and hyper-branched polymers.Type: ApplicationFiled: April 4, 2003Publication date: December 18, 2003Applicant: Symyx Technologies, Inc.Inventors: Dominique Charmot, Han Ting Chang, Yunxiao Li, Peter Huefner
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Patent number: 6653423Abstract: A random copolymer obtained by polymerizing a monomer composition comprising allylamine or a salt thereof and a monomer bearing a phosphorylcholine-like group, comprising 0.01 to 9 mole % of constituent units (A1) derived from allylamine or a salt thereof and 91 to 99.99 mole % of constituent units (A2) derived from a monomer bearing a phosphorylcholine-like group, and having a number-average molecular weight of 50000 to 5000000. This copolymer is excellent in biocompatibility, can be easily fixed on the surfaces of substrates, and exhibit good surface lubricity when formed into films, thus being useful as medical material.Type: GrantFiled: January 14, 2002Date of Patent: November 25, 2003Assignee: NOF CorporationInventors: Nobuyuki Yamamoto, Hiroki Fukui, Ken Suzuki