From Reactant Having A Nitrogen Atom Directly Bonded To The Carbon Atom Of A Carbonyl Group, I.e., N-c(=o)- Patents (Class 528/367)
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Publication number: 20090036322Abstract: A novel polyurethane material having excellent leukocyte adsorption capacity. When exposed to a labelled sugar chain solution LDF1 for 2 hours, it exhibits an adsorption amount of 400,000 or more. The polyurethane is composed of (A) a diisocyanate compound structural unit, (B) a polymer diol compound structural unit, and (C) a chain extender structural unit, preferably containing a tertiary amino group.Type: ApplicationFiled: May 18, 2005Publication date: February 5, 2009Applicant: University of SouthhamptonInventors: Mark Bradley, Junichi Shishido, Jean-Francois Thaburet
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Publication number: 20090029895Abstract: The present invention relates to a hard surface cleaning composition comprising a copolymer, wherein said copolymer comprises a zwitterionic unit A or a mixture thereof and another unit B or a mixture thereof, wherein said unit A comprises a betaine group or a mixture thereof and wherein said betaine group of said unit A is a sulphobetaine group or a mixture thereof, and wherein said unit B is derived from vinyl-pyrrolidone.Type: ApplicationFiled: July 25, 2008Publication date: January 29, 2009Inventors: Stefano Scialla, Luca Sarcinelli, Annick Julia Oscar Mertens, Marc Francois Theophile Evers
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Publication number: 20090018040Abstract: A succinimide dispersant comprising the condensation product of a hydrocarbyl-substituted succinic anhydride or reactive equivalent thereof with an alkylene polyamine, wherein the alkylene polyamine is a condensed amine, exhibits improved viscometrics.Type: ApplicationFiled: February 3, 2006Publication date: January 15, 2009Applicant: THE LUBRIZOL CORPORATIONInventors: Renee A. Eveland, Matthew D. Gieselman, Douglas M. Barr, Gregory R. McCullough, John K. Pudelski
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Publication number: 20090012033Abstract: The present invention concerns core-shell tecto (dendritic polymers) that are associated with biologically active materials (such as nucleic acids for use for RNAi and in transfection). Also included are formulations for their use. The constructs are useful for the delivery of drugs to an animal or plant and may be in vivo, in vitro or ex vivo.Type: ApplicationFiled: March 3, 2007Publication date: January 8, 2009Inventors: Cordell R. DeMattei, Baohua Huang, Lori A. Reyna, Sonke Svenson, Douglas R. Swanson, Donald A. Tomalia, Michael A. Zhuravel, Veera Reddy Pulgam
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Publication number: 20090012606Abstract: This disclosure provides a method device and a method of forming the medical device. The medical device comprises a coating comprising a polymer. The polymer comprises at least two different blocks, at least one L1 block with the formula and at least one L2 block with the formula Medical devices comprising these polymers, mixtures of these polymers with therapeutic agents, and methods of making these polymers and mixtures are within the scope of this disclosure.Type: ApplicationFiled: September 9, 2008Publication date: January 8, 2009Inventor: Stephen D. Pacetti
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Publication number: 20090005286Abstract: The invention relates to the use of cationic polycondensation products as additives for fixing colours and/or inhibiting the running of colours, for washing products and washing aftertreatment products. Said cationic polycondensation products can be produced by the condensation of (A1) non-cyclic amines obtained by the reaction of (A1 a) mono(N,N-dialkylaminoalkyl)amines with (A1 b) bifunctional compounds selected from the group containing urea, thiourea, dialkyl carbonates, aliphatic and aromatic dicarboxylic acids, and aliphatic and aromatic diisocyanates, in a molar ratio 1.2:1 to 2.1:1, or (A2) mixtures of non-cyclic amines (A1) and cyclic amines (A3) in a molar ratio 10:1 to 1:10 with (B) bifunctional compounds selected from the group containing alkylene dihalogenides, dihalogen alkyl ethers, halomethyl oxiranes, and bisepoxides, in a molar ratio (B) to (A1) or (B) to (A2) from 0.6:1 to 1.3:1.Type: ApplicationFiled: March 21, 2006Publication date: January 1, 2009Applicant: BASF AktiengesellschaftInventors: Jurgen Detering, Lidcay Herrera Taboada, Christian Hubert Weidl
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Publication number: 20090004274Abstract: The present invention relates to new hydrogel materials using water gellants that are comprised by hydrophilic polymers to which hydrogen bonding units are covalently attached. Optionally, the hydrogel contains additional ingredients or additives. These new reversible hydrogels can easily be fine-tuned in their mechanical performance and functionality and are especially suitable for cosmetic and biomedical applications.Type: ApplicationFiled: May 3, 2006Publication date: January 1, 2009Applicant: SUPRAPOLIX B.V.Inventors: Gaby Maria Hoorne-Van Gemert, Henricus Marie Janssen, Egbert Willem Meijer, Anton Willem Bosman
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Publication number: 20080319161Abstract: A method for purifying a polymer comprising providing a first mixture comprising at least one solvent and at least one polymeric material, diluting the first mixture with veratrole to produce a second mixture in which the polymeric material is substantially dissolved at a temperature less than 100° C., performing at least one step selected from (i) contacting the second mixture with an aqueous wash solution, and (ii) filtering the second mixture.Type: ApplicationFiled: June 22, 2007Publication date: December 25, 2008Applicant: GENERAL ELECTRIC COMPANYInventor: David Bruce Hall
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Publication number: 20080293914Abstract: The present invention provides a high actives liquid nonionic surfactant concentrate that includes a fatty alcohol alkoxylate having an alkylene oxide content of about 10-100 moles and at least one other nonionic surfactant alkoxylate having an alkylene oxide content of about 4-12 moles. The liquid surfactant concentrate may be utilized in a variety of applications, such as emulsion polymerization or in the formulation of agrochemical compositions.Type: ApplicationFiled: November 28, 2006Publication date: November 27, 2008Inventors: Xiaoping Lei, John Adamson, David Ross
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POLY(CARBONATE-CO-UREA) COPOLYMERS AND MELT TRANSESTERIFICATION METHOD OF PREPARING THESE COPOLYMERS
Publication number: 20080275206Abstract: Disclosed herein is a poly(carbonate-co-urea-co-ester) copolymer comprising incorporated urea compound, dihydroxy compound and diacid compound residues. Also disclosed herein is a poly(carbonate-co-urea) copolymer comprising incorporated urea compound and dihydroxy compound residues.Type: ApplicationFiled: May 3, 2007Publication date: November 6, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Jan Henk Kamps, Edward Kung, Jan-Pleun Lens -
Publication number: 20080274075Abstract: Novel compounds, including PEGylated proteins of the formula, methods for preparing such compounds, methods of using such compounds, and other compositions and methods, are provided.Type: ApplicationFiled: May 19, 2006Publication date: November 6, 2008Applicant: Novo Nordisk Healthcare A/GInventor: Florencio Zaragoza Dorwald
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Publication number: 20080220251Abstract: A pressure-sensitive adhesive tape or film obtained by curing a UV-curable pressure-sensitive adhesive composition containing a UV-curable polymer or oligomer, wherein the UV curing is controlled to give a higher degree of cure to one surface of the pressure-sensitive adhesive tape or film than that on the opposite surface and thereby the pressure-sensitive adhesive property is suppressed on the one surface and maintained on the opposite surface.Type: ApplicationFiled: April 18, 2006Publication date: September 11, 2008Inventor: Shunsuke Takaki
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Publication number: 20080206548Abstract: A benzoxazole resin precursor comprising a first repeating unit which is obtained by the reaction of a bisaminophenol compound and a dicarboxylic acid compound, at least one of which has the diamondoid structure; a benzoxazole resin precursor further comprising a second repeating unit which is obtained by the reaction of a bisaminophenol compound having no diamondoid structure and a dicarboxylic acid compound having no diamondoid structure; a polybenzoxazole resin obtained by the ring-closing reaction with dehydration of the above benzoxazole resin precursor; a resin film constituted with the benzoxazole resin precursor or the polybenzoxazole resin. A polybenzoxazole resin and a resin film having excellent heat resistance and a small permittivity and a semiconductor device using the resin film can be obtained from the benzoxazole resin precursor.Type: ApplicationFiled: June 20, 2005Publication date: August 28, 2008Applicant: Sumitomo Bakelite Co., LTDInventors: Takashi Enoki, Atsushi Izumi
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Publication number: 20080200084Abstract: A composition for the manufacture of a circuit material comprises a solvent composition having a boiling point below 160° C.; an epoxy compound having an average epoxy functionality of greater than one, an epoxy equivalent weight of less than about 6,000 Daltons, a softening point of less than about 160° C., and solubility in the solvent composition; an aromatic polymer co-curable with the epoxy compound, and soluble in the solvent composition; and, optionally, a catalyst for the polymerization of epoxy groups. The composition for the manufacture of a circuit material can further comprise a filler additive and/or a flame retardant additive.Type: ApplicationFiled: February 14, 2008Publication date: August 21, 2008Inventors: Richard O. Angus, Carlos L. Barton, David H. Guo
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Publication number: 20080185561Abstract: Resistor compositions are disclosed, made from polymer thick film resistor formulations comprising a polyimide component, a sterically hindered hydrophobic epoxy component and a solvent component having a Hanson polar solubility parameter between 2.1 and 3.0 and having a normal boiling point between 210 and 260° C. The weight ratio of polyimide component (“A”) to epoxy component (“B”) is A:B, where A is between and including 1 to 15 and where B is 1.Type: ApplicationFiled: November 19, 2007Publication date: August 7, 2008Inventor: John D. Summers
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Publication number: 20080176983Abstract: A polymer composite composed of a polymerized mixture of functionalized carbon nanotubes and monomer which chemically reacts with the functionalized nanotubes. The carbon nanotubes are functionalized by reacting with oxidizing or other chemical media through chemical reactions or physical adsorption. The reacted surface carbons of the nanotubes are further functionalized with chemical moieties that react with the surface carbons and selected monomers. The functionalized nanotubes are first dispersed in an appropriate medium such as water, alcohol or a liquefied monomer and then the mixture is polymerized. The polymerization results in polymer chains of increasing weight bound to the surface carbons of the nanotubes. The composite may consists of some polymer chains imbedded in the composite without attachment to the nanotubes.Type: ApplicationFiled: August 20, 2007Publication date: July 24, 2008Applicant: Hyperion Catalysis International, Inc.Inventors: Chunming Niu, Lein Ngaw
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Publication number: 20080169451Abstract: The invention relates to the synthesis of polythiophene (PAT) copolymers, and their use as conductive polymers in final applications. Specifically, copolymers of PAT with (meth)acrylates, or amides are useful as additives in blends of different polymer matrices in many commercial applications.Type: ApplicationFiled: March 3, 2006Publication date: July 17, 2008Applicant: Arkema Inc.Inventors: Gary S. Silverman, Thomas P. Mc Andrew, Scott C. Schmidt, David A. Mountz, Mark A. Aubart, Nicholas J. Rodak
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Publication number: 20080160222Abstract: The invention relates to an alignment layer with improved adhesion to liquid crystal (LC) films, to a precursor material used for the preparation of such a layer, to a laminate comprising such a layer and at least one LC polymer film, and to the use of the alignment layer and the laminate for optical, electrooptical, decorative or security uses and devices, wherein the alignment layer and the precursor material comprise at least one reactive mesogen in monomeric, oligomeric or polymeric form.Type: ApplicationFiled: July 26, 2004Publication date: July 3, 2008Inventors: Richard Harding, Alison Linda May, Simon Greenfield, Johan Lub, Ciska Doornkamp, Rene Theodorus Wegh
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Publication number: 20080157021Abstract: A composition having a bismaleimide oligomer and preparation methods thereof are provided. The composition having a bismaleimide oligomer comprises a bismaleimide oligomer, wherein the bismaleimide oligomer is in an amount of more than 75 parts by weight, based on 100 parts by weight of the composition. Specifically, the bismaleimide oligomer is prepared by reacting bismaleimide monomers with batch-added barbituric acid.Type: ApplicationFiled: December 27, 2007Publication date: July 3, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Tsung-Hsiung Wang, Jing-Pin Pan, Shur-Fen Liu, Yueh-Wei Lin
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Publication number: 20080154011Abstract: The present invention discloses opaque and white monofilaments that retain tensile strength even after exposure to high levels of UV light. Monofilaments of the present invention do not become brittle even after exposure to the equivalent of three to six months of Florida sun. Monofilaments of the present invention can be useful in brushes, filtration media, monofilament fabrics, synthetic hair for wigs, doll hair, and other applications where monofilaments can be used that are stored or sold in an environment where there is a substantial degree of exposure to the sun.Type: ApplicationFiled: December 19, 2007Publication date: June 26, 2008Inventors: Mingsong Wang, Daniel Ayglon, Russel A. Brezler, Austin H. Reid, Immanuel Dayal Walker, Abdullah Zafar
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Publication number: 20080154015Abstract: A method for forming a polyimide composite article utilizes a polyimide resin system including at least a first prepolymer component and a second prepolymer component. A preform structure is tackified with the first prepolymer component. Using resin infusion or resin transfer molding techniques, the tackified preform structure is contacted with the second prepolymer component. The polyimide resin system is cured under suitable cure conditions so that the first and second prepolymer components mix and react to produce the polyimide composite structure.Type: ApplicationFiled: December 27, 2007Publication date: June 26, 2008Inventors: Stephen Mark Whiteker, Lisa Vinciguerra Shafer, Warren Rosal Ronk
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Publication number: 20080154017Abstract: Star polymers prepared by reacting a highly branched polymer and either a lactone or lactam are disclosed. These star polymers find particular application as additives for powder coating compositions, to improve various performance properties thereof. Powder coating composition comprising the described star polymers are also disclosed.Type: ApplicationFiled: March 6, 2008Publication date: June 26, 2008Applicant: PPG INDUSTRIES OHIO, INC.Inventors: William H. Retsch, Michael J. Ziegler, Jackie L. Kulfan, Ronald R. Ambrose, Christopher P. Kurtz
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Publication number: 20080154016Abstract: An aqueous dispersion comprising a polyurethane synthesized from a) organic diisocyanates b) dihydroxy compounds having a molar weight of 500 to 5000 g/mol and comprising no ionic group or group that can be converted to an ionic group c) mono- to trihydric alcohols additionally comprising an ionic group d) if appropriate, further compounds other than a) to c), wherein the polyurethane comprises less than 0.6% by weight of urea groups (calculated with a molar weight of 56 g/mol), the ionic group of c) has been at least partly neutralized with an alkali metal cation, and the reaction of compounds a), b), c), and d) does not take place in the presence of a catalyst containing a metal-carbon bond.Type: ApplicationFiled: February 14, 2006Publication date: June 26, 2008Applicant: BASF AktiengesellschaftInventors: Andre Burghardt, Hans-Joachim Fricke, Karl Haberle, Oliver Hartz, Horst Seibert, Karl-Heinz Schumacher
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Publication number: 20080145338Abstract: Acrylate-terminated poly(beta-amino esters) are cross-linked to form materials useful in the medical as well as non-medical field. The polymeric starting material is combined with a free radical initiator, either a thermal initiator or a photoinitiator, and the mixture for cross-linking is heated or exposed to light depending on the initiator used. The resulting materials due to the hydrolysable ester bond in the polymer backbone are biodegradable under physiological conditions. These cross-linked materials are particular useful as drug delivery vehicles, tissue engineering scaffolds, and in fabricating microdevices. The materials may also be used as plastics, coating, adhesives, inks, etc. The cross-linked materials prepared exhibit a wide range of degradation times, mass loss profiles, and mechanical properties. Therefore, the properties of the material may be tuned for the desired use.Type: ApplicationFiled: June 5, 2007Publication date: June 19, 2008Inventors: Daniel Griffith Anderson, Jason Alan Burdick, Robert S. Langer
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Publication number: 20080108783Abstract: Very low loading of impact modifier less than 4% can significantly improve elongation and impact strength of N6/clay nanocomposites and keep the high tensile strength and modulus. This rubber modified nylon nanocomposites have potential applications in fabricating high-strength fibers for textile industry, coatings for strings or polymer parts, and packaging industry.Type: ApplicationFiled: June 18, 2007Publication date: May 8, 2008Applicant: Nano-Proprietary, Inc.Inventors: Yunjun Li, Dongsheng Mao, Zvi Yaniv
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Publication number: 20080076886Abstract: The present invention relates to novel adducts useful for improving the toughness and curable compositions using such toughening adducts. In a particular aspect, the present invention relates to novel toughening adducts and thermosetting resin formulations having improved fracture toughness using those toughening adducts.Type: ApplicationFiled: September 26, 2006Publication date: March 27, 2008Inventors: Barry N. Burns, Ray P. Tully, Jonathan P. Wigham, Martin J. Fitzpatrick, Rainer Schoenfeld, Ciaran B. McArdle, Mark Loane
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Patent number: 7348395Abstract: A cyanate ester system is disclosed. An aryl ether oligomer may be made from a dihydroxyaromatic compound and a dihaloaromatic compound in the presence of a base. The oligomer is then reacted with a cyanide compound in the presence of a base to form the cyanate ester shown below. The cyanate ester may then be cross-linked to a thermoset having triazine ring cross-links.Type: GrantFiled: June 22, 2006Date of Patent: March 25, 2008Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M Keller, Matthew Laskoski
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Patent number: 7342085Abstract: A cyanate ester system is disclosed. An aryl ether oligomer may be made from a dihydroxyaromatic compound and a dihaloaromatic compound in the presence of a base. The oligomer is then reacted with a cyanide compound in the presence of a base to form the cyanate ester shown below. The cyanate ester may then be cross-linked to a thermoset having triazine ring cross-links HO—Ar2O—Ar1—O—Ar2nOH.Type: GrantFiled: June 22, 2006Date of Patent: March 11, 2008Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M Keller, Matthew Laskoski
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Publication number: 20080051526Abstract: A coating composition for coating metal substrates includes polyurethane polyol (PUPO) and iron carbonyl to provide a coating with excellent weldability and corrosion resistance.Type: ApplicationFiled: October 14, 2005Publication date: February 28, 2008Applicant: AKZO NOBEL COATINGS INTERNATIONAL B.V.Inventors: Alexander Yahkind, Robert Liedtke, Christy Stine
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Patent number: 7323435Abstract: Fluorinated oligourethanes, having number average molecular weight lower than or equal to 9,000, having a branched structure, formed of the following monomers and macromers: a) aliphatic, cycloaliphatic or aromatic polyisocyanates, b) heterofunctional hydrogenated monomers having general formula: X0—(CR1AR2A)b—Y0 ??(Ib) one or more of the following compounds: c) bifunctional hydroxyl (per)fluoropolyethers (PFPE diols) having number average molecular weight in the range 400-3,000, e) monofunctional hydroxyl (per)fluoropolyethers or monofunctional hydroxyl (per)fluoroalkanes (e?), having number average molecular weight in the range 300-1,000, and optionally the following compounds: d) heterofunctional monomers, dI) hydrogen-active compounds, capable to form bonds with the NCO functions stable at the hydrolysis but weak at heat.Type: GrantFiled: June 12, 2000Date of Patent: January 29, 2008Assignee: Ausimont S.p.A.Inventors: Stefano Turri, Marinella Levi, Tania Trombetta
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Patent number: 7297723Abstract: Powder slurries curable thermally and with actinic radiation and comprising solid and/or highly viscous particles dimensionally stable under storage and application conditions, comprising (A) a binder free of carbon-carbon double bonds activatable with actinic radiation, comprising at least one (meth)acrylate copolymer containing on average per molecule at least one isocyanate-reactive functional group and at least one ion-forming group, (B) at least one blocked and/or part-blocked polyisocyanate, and (C) at least one olefinically unsaturated constituent which is free of isocyanate-reactive functional groups and contains on average per molecule more than four carbon-carbon double bonds activatable with actinic radiation; processes for preparing them, and their use.Type: GrantFiled: March 28, 2002Date of Patent: November 20, 2007Assignee: BASF Coatings AGInventors: Guido Wilke, Ulrike Röckrath, Joachim Woltering, Egon Wegner, Hubert Baumgart, Günther Ott
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Patent number: 7297734Abstract: The present invention describes a process for preparing a synergistic stabilizer mixture comprising the components of the general formulae (I), (II) and (III) in accordance with claim 1, characterized by the reaction of compounds of the formula (V) with an epihalohydrin of the formula (VI) in the presence of a phase transfer catalyst and from 4 to 20 times the molar amount of an alkali metal hydroxide, relative to compound (V), at from 20 to 220° C. Removal of the excess epihalohydrin and phase separation are followed by polymerization at from 100 to 240° C.Type: GrantFiled: February 4, 2003Date of Patent: November 20, 2007Assignee: Clariant Produkte (Deutschland) GmbHInventor: Mathias Mehrer
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Patent number: 7279505Abstract: The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or a mixture thereof, wherein the isocyanate-capped polyurethane is a copolymerization production of: (a) at least one polyalkylene glycol; (b) at least one branching agent having at least three hydroxy groups; and (c) at least one di- or polyisocyanate. The radiation-curable prepolymer of the invention can find use in economically producing contact lenses which have durable, highly elastic soft contact lenses with desired physical properties. In addition, the present invention provides method for making a radiation-curable prepolymer of the invention and for making a medical device, preferably an ophthalmic device, more preferably a contact lens.Type: GrantFiled: October 5, 2005Date of Patent: October 9, 2007Assignee: Novartis AGInventors: John Christopher Phelan, Michael Hugh Quinn, Joshua Andrew Wallach
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Patent number: 7264705Abstract: An improved aqueous cathodic electrocoating composition that contains an anti-crater agent which is a water-reducible polyester resin having an acid value less than 40 mg KOH/g. The water-reducible polyester is the reaction product of (1) a hydroxy cyclic carbonate; (2) a polycarboxylic acid anhydride; (3) optional monofunctional epoxy resin; (4) a polyfunctional isocyanate resin; and, (5) a polyamine compound containing tertiary amine and either primary or secondary functionality. The reaction product is neutralized in the presence of acid and water to convert the tertiary amine groups to water-dilutable groups. Hydrolyzable silane groups can also be incorporated into the reaction product to further enhance its crater resistance property. The electrocoat composition produces coatings having a smoother appearance with fewer craters without adversely affecting intercoat adhesion of the cured film to subsequent coating layers applied thereover.Type: GrantFiled: October 18, 2004Date of Patent: September 4, 2007Assignee: E. I. duPont de Nemours and CompanyInventors: Allisa Gam, Thomas Grawe, Joachim Ruerup, Andreas Fieberg
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Patent number: 7115899Abstract: Novel pentaphenylene copolymers which are useful in electronic devices are described.Type: GrantFiled: October 29, 2003Date of Patent: October 3, 2006Assignee: E. I. du Pont de Nemours and CompanyInventor: Frank P. Uckert
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Patent number: 7087707Abstract: A cyanate ester system is disclosed. An aryl ether oligomer may be made from a dihydroxyaromatic compound and a dihaloaromatic compound in the presence of a base. The oligomer is then reacted with a cyanide compound in the presence of a base to form the cyanate ester shown below. The cyanate ester may then be cross-linked to a thermoset having triazine ring cross-links.Type: GrantFiled: April 14, 2004Date of Patent: August 8, 2006Assignee: The United States of America as represented by the Secretary of the NavyInventors: Teddy M. Keller, Matt Laskoski
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Patent number: 7074881Abstract: Disclosed are methods of synthesis of copoly(succinimide-aspartate), copolymers and derivatives thereof, prepared in a thermal or supercritical fluid method. Also disclosed are methods of isolating, compounding, stabilizing and processing the copoly(succinimide-aspartate), and its derivatives.Type: GrantFiled: November 3, 2003Date of Patent: July 11, 2006Assignee: Folia, INCInventors: Graham Swift, George H. Redlich
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Patent number: 7034074Abstract: Aqueous primary dispersions and coating materials comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core-shell particles having a diameter?500 nm, preparable by free-radical microemulsion or miniemulsion polymerization of at least one olefinically unsaturated monomer (A) in the presence of at least one hydrophobic crosslinking agent for the (co)polymer resulting from the monomer or monomers (A), wherein said monomer or monomers (A) is or are dispersed prior to (co)polymerization in an aqueous dispersion of said crosslinking agent or agents; processes for preparing them, and their use.Type: GrantFiled: March 10, 2001Date of Patent: April 25, 2006Assignee: BASF Coatings AGInventors: Maximilian Bendix, Heinz-Peter Rink, Elisabeth Wessling, Reinhold Clauss, Ralf Nicholaus
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Patent number: 7005484Abstract: A method for making a polymer or oligomer comprising the steps of making a first monomer comprising a substituted aromatic or heteroaromatic group by providing an aromatic or heteroaromatic group substituted with first and second director groups, performing metalisation at a first position on the aromatic or heteroaromatic group, performing electrophilic substitution so as to provide a first substituent group at the first position, and contacting in a reaction mixture the first monomer with at least two further monomers that independently are the same or different from the first monomer under conditions so as to form a polymer or oligomer, wherein the nature and positions of the first and second director groups regioselect the first position.Type: GrantFiled: July 24, 2000Date of Patent: February 28, 2006Assignee: Cambridge Display Technology LimitedInventors: Andrew B. Holmes, Florence D. Geneste, Rainer E. Martin, Franco Cacialli
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Patent number: 6995192Abstract: The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or a mixture thereof, wherein the isocyanate-capped polyurethane is a copolymerization production of: (a) at least one polyalkylene glycol; (b) at least one branching agent having at least three hydroxy groups; and (c) at least one di- or polyisocyanate. The radiation-curable prepolymer of the invention can find use in economically producing contact lenses which have durable, highly elastic soft contact lenses with desired physical properties. In addition, the present invention provides method for making a radiation-curable prepolymer of the invention and for making a medical device, preferably an ophthalmic device, more preferably a contact lens.Type: GrantFiled: August 13, 2003Date of Patent: February 7, 2006Assignee: Novartis AGInventors: John Christopher Phelan, Michael Hugh Quinn, Joshua Andrew Wallach
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Patent number: 6989106Abstract: A process for the preparation of polymeric condensates, wherein the reaction mixture is fed at least once during the condensation reaction through a zone of high energy density which has an energy density of at least 105 J/m3.Type: GrantFiled: June 9, 2003Date of Patent: January 24, 2006Assignee: Bayer AktiengesellschaftInventors: Karlheinrich Meisel, Lars Obendorf, Branislav Boehmer, Bernd Thiele, Armin Spaniol, Dietmar Fuchs, Gerd-Friedrich Renner, Thomas Huebbe
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Patent number: 6979719Abstract: The invention pertains to a coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group. The invention also comprises a process for curing the present coating composition. Further, a process for making a bicyclo-orthoester-functional compound from the corresponding oxetane compound is described.Type: GrantFiled: February 22, 2000Date of Patent: December 27, 2005Assignee: Akzo Nobel N.V.Inventors: Klaus Hobel, Huig Klinkenberg, Arie Noomen
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Patent number: 6953540Abstract: The present invention relates to a continuous method to prepare encapsulated cyclopropenes, a method to purify cyclopropene gas, and a method to prepare an ?-cyclodextrin/cyclopropene complex.Type: GrantFiled: September 12, 2001Date of Patent: October 11, 2005Assignee: Rohm and Haas CompanyInventors: Joshua Anthony Chong, Vincent John Farozic, Richard Martin Jacobson, Bret Alan Snyder, Randall Wayne Stephens, David Wayne Mosley
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Patent number: 6903180Abstract: This invention relates to novel epoxy resins and epoxy resin compositions comprising said epoxy resins or cured articles thereof. The cured articles have excellent properties in respect to flame retardance, adhesiveness, moisture resistance and heat resistance and can be used in applications such as lamination, molding, casting and adhesion. The epoxy resins of this invention are represented by the following formula (3) wherein Y1 denotes a glycidyloxyarylmethyl group represented by —CH2—Ar—OG, Y2 and Y3 denote independently a glycidyl group or the aforementioned glycidyloxyarylmethyl group, Ar denotes a phenylene group which can be substituted with up to two hydrocarbon groups and G denotes a glycidyl group.Type: GrantFiled: December 10, 2001Date of Patent: June 7, 2005Assignee: Nippon Steel Chemical Co., Ltd.Inventors: Masashi Kaji, Koichiro Ogami
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Patent number: 6900284Abstract: Poly-o-hydroxyamides are cyclicized to obtain polybenzoxazoles. The poly-o-hydroxyamides provide effective filling of trenches. In particular, the poly-o-hydroxyamides can fill trenches having a width of less than 100 nm and an aspect ratio of more than 4. Further, the polybenzoxazoles of the invention are very suitable for the damascene process. A dielectric can be made from the polybenzoxazole. In turn, semiconductor devices can include the dieletric. Processes for making the poly-o-hydroxyamides, polybenzoxazoles, and semiconductor devices are included.Type: GrantFiled: September 30, 2002Date of Patent: May 31, 2005Assignee: Infineon Technologies AGInventors: Klaus Lowack, Anna Maltenberger, Recai Sezi, Andreas Walter
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Patent number: 6893718Abstract: A pressure sensitive adhesive composition is described, comprising the reaction product of a copolymer and a bisamide crosslinking agent, (A) the copolymer comprising the reaction product of (i) a (meth)acrylate ester of a non-tertiary alcohol in which the alkyl group contains between 1 and 4 carbon atoms, inclusive, and (ii) a carboxylic acid-functional, ethylenically unsaturated co-monomer, and (B) a bisamide crosslinking agent having the formula: where, R1 and R3 independently, are selected from the group consisting of H and CnH2n+1, n is an integer ranging from 1 to 5, R2 is a divalent radical selected from the group consisting of benzeno (—C6H4—), substituted benzeno, triazine, CmH2m, and combinations thereof, m is an integer ranging from 1 to 10, and the relative amounts of the carboxylic acid-functional, ethylenically unsaturated co-monomer and the bisamide crosslinking agent providing a ratio of the number of equivalents of amide groups to the number of equivalents of carboxylic acid groups ofType: GrantFiled: May 20, 2002Date of Patent: May 17, 2005Assignee: 3M Innovative Properties CompanyInventors: Kurt C. Melancon, Timothy D. Filiatrault, Shwi-Long J. Hwang, Rodger J. Pereyra
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Patent number: 6878797Abstract: A process for producing alkali metal polymaleimide salts by alkaline hydrolysis of maleimide polymers prepared by polymerization of maleimide monomers in the presence of a metal oxide and alcohol initiator or a base. In particular, the process produces alkali metal polymaleimide salts with particular ratios of C—N and C—C connected maleimide-derived monomer units which are dependent on the particular initiator used to synthesize the maleimide polymer. The alkali metal polymaleimide salts, which have chelating and anti-scaling properties, are useful as chelating agents and detergent builders and as such are suitable biodegradable replacements for synthetic polymers and sodium polyaspartate.Type: GrantFiled: April 19, 2002Date of Patent: April 12, 2005Assignees: Board of Trustees of Michigan State University, Applied CarboChemicalsInventors: Kris A. Berglund, Parminder Agarwal, Qiuyue Yu, Adam Harant
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Patent number: 6784280Abstract: A process for producing a polysuccinimide (co)polymer derivative which permits the reaction of a polysuccinimide (co)polymer with a Lewis base in a wide temperature range (90° to 300° C.) without using a pH-adjusting agent is provided. The process for producing a polysuccinimide (co)polymer derivative of this invention comprises reacting a polysuccinimide (co)polymer with a Lewis base by heating in the presence of a solvent having a low boiling point and high relative permittivity.Type: GrantFiled: February 8, 2001Date of Patent: August 31, 2004Assignee: Nippon Shokubai Co., Ltd.Inventors: Shinzo Yasuda, Masaharu Mukouyama
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Patent number: 6777079Abstract: Pressure sensitive adhesive compositions, and adhesive articles based thereon, crosslinked using a bis-amide crosslinking agent that are thermally stable, yet cleanly removable from a variety of substrates following exposure to high temperatures.Type: GrantFiled: November 30, 2001Date of Patent: August 17, 2004Assignee: 3M Innovative Properties CompanyInventors: Zhiming Zhou, Lori P. Engle
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Patent number: 6750312Abstract: A method for preparing a solid support material for carrying out a chemical reaction, said method comprising the following steps: (i) reacting an amino functionalised solid material with a carboxylic acid having at least two similarly protected amino groups to form amide bonds between them, (ii) removing protecting groups in a single step, (iii) optionally repeating steps (i) and (ii) one or more times using the product of the preceding step as the amino functionalised solid material, and (iv) connecting a linkage agent to at least some of the free NH2 groups of the product. The method increases the loading capacity of the solid support material. It is particularly useful in connection with peptide synthesis.Type: GrantFiled: March 26, 2002Date of Patent: June 15, 2004Assignee: Avecia LimitedInventors: Craig Stephen Harris, Donald Alfred Wellings, Francis Joseph Montgomery, Richard John Brown