Material Is Organic Nitrogen-containing Compoud Patents (Class 528/52)
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Patent number: 8178614Abstract: A laminate includes a backing material coated with a solvent resistant adhesive composition. The adhesive composition includes a hydroxyl or urea or hydrocarbon terminated unsaturated polyurethane or polyurethane-urea polymer and a peroxide or a silicone hydride.Type: GrantFiled: December 11, 2009Date of Patent: May 15, 2012Assignee: Momentive Performance Materials Inc.Inventors: Roy Melvin Griswold, Richard P. Eckberg, Mark J. Bisaillon, Robert L. Frye
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Patent number: 8134014Abstract: The invention relates to the use of specific pyridines as catalysts for the dimerization of isocyanates (uretdione formation) and a process for preparing polyisocyanates having a high content of uretdione groups.Type: GrantFiled: December 2, 2008Date of Patent: March 13, 2012Assignee: Bayer MaterialScience AGInventors: Frank Richter, Andreas Hecking, Reinhard Halpaap
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Publication number: 20120059141Abstract: The invention relates to a process for preparing a thermoplastic polyisocyanate polyaddition product based on polyisocyanate (i) and compounds which are reactive toward polyisocyanate, with or without the use of chain extenders, a first catalyst (iv) and/or auxiliaries and/or additives (v), wherein a second catalyst is initially vaporized and then applied to the polyisocyanate polyaddition product by condensation, and to the products prepared therefrom.Type: ApplicationFiled: February 25, 2011Publication date: March 8, 2012Applicant: BASF SEInventors: Torben Kaminsky, Dirk Kempfert
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Patent number: 8119825Abstract: Process for preparing multimetal cyanide compounds, which comprises the steps a) reaction of the aqueous solution of a metal salt of the general formula (I) M1gXn ??(I) With the aqueous solution of a cyanometalate compound of the general formula (II) M3r[M2(CN)b]d, ??(II), If appropriate in the presence of organic ligands, organic additives and/or surface-active agents, to form a multimetal cyanide compound of the general formula (III) M1a[M2(CN)b]d.fM1jXk.h(H2O).eL.zP ??(III) b) reaction of the multimetal cyanide compound of the general formula (III) with a salt of the general formula (IV) M4sYt ??(IV) which is different from general formula (II) where M1, M2, M3, M4, X, L, P, Y, g, n, r, b, d, a, f, j, k, h, e, z, s, and t are defined in the specification.Type: GrantFiled: November 23, 2006Date of Patent: February 21, 2012Assignee: BASF AktiengesellschaftInventors: Michael Triller, Raimund Ruppel
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Patent number: 8119799Abstract: The present invention relates to novel catalysts for preparing polyisocyanates having isocyanurate groups by a partial trimerization of (cyclo)aliphatic diisocyanates.Type: GrantFiled: March 9, 2005Date of Patent: February 21, 2012Assignee: BASF AktiengesellschaftInventors: Horst Binder, Hubert Graf, Frank Braun, Bernd Spies, Heinrich Kieslich
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Patent number: 8076518Abstract: This invention provides chain extender compositions. These compositions comprise (i) an aliphatic secondary diamine, and (ii) a component selected from the group consisting of: (a) a cycloaliphatic primary diamine; (b) an aliphatic secondary diamine; (c) an aliphatic secondary diamine and an aliphatic primary diamine; (d) an aliphatic diimine; and (e) a combination of any two or more of (a) through (d), with the proviso that when (ii) is (a), (i) is a noncyclic aliphatic secondary diamine. Processes for producing polyurethanes, polyureas, and polyurea-urethanes are also provided.Type: GrantFiled: September 25, 2006Date of Patent: December 13, 2011Assignee: Albemarle CorporationInventors: Paul L. Wiggins, John Y. Lee, Judit Orgad, David W. Owens
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Publication number: 20110218314Abstract: A process for oligomerizing isocyanates includes a step of continuous conversion of an isocyanate monomer into polyisocyanate containing carbamate and/or allophanate groups, in the presence of a catalyst, wherein the conversion step is carried out in a reactor having a specific heat exchange coefficient of greater than or equal to approximately 200 kW/m3/° C.Type: ApplicationFiled: April 2, 2009Publication date: September 8, 2011Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE(C.N.R, INSTITUE NATIONAL POLYTECHNIQUE DE TOULOUSE, PERSTORP FRANCEInventors: Hocine Kabir, Johannes Schwarz, Christophe Gourdon, Sébastien Elgue
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Patent number: 7968668Abstract: A novel macromer or mixture thereof is described herein, comprising benzoyl isocyanate terminal moieties and at least two residues of a water-soluble polymer having a molecular weight ranging from 80 to 10,000 adjacent to the carbonyl group of the benzoyl isocyanate moieties, thereby forming at least two ester linkages in the macromer or mixture thereof. A method for making a polyisocyanate macromer is also described herein.Type: GrantFiled: June 28, 2006Date of Patent: June 28, 2011Assignee: Ethicon Inc.Inventors: Benjamin D. Fitz, Christopher M. Westergom
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Patent number: 7956123Abstract: A solvent resistant adhesive obtained by the crosslinking of a hydroxyl or urea or hydrocarbon terminated unsaturated polyurethane or polyurethane-urea polymer with a peroxide or a silicone hydride. The adhesive is useful as a component in pressure sensitive adhesives.Type: GrantFiled: October 24, 2005Date of Patent: June 7, 2011Assignee: Momentive Performance Materials Inc.Inventors: Roy Melvin Griswold, Richard P. Eckberg, Mark J. Bisaillon, Robert L. Frye
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Patent number: 7956098Abstract: The present invention relates to a binder-containing coating composition, which may be cured by free radical polymerization, wherein the binder resins contain A) the reaction product of i) one or more polyisocyanates with ii) a hydroxyl component containing ii-a) one or more hydroxyl compounds containing two ethylenically unsaturated groups, B) the reaction product of i) one or more polyisocyanates with ii) a hydroxyl component containing ii-a) one or more hydroxy functional lactone ester (meth)acrylates having a number average molecular weight of about 200 to 2,000, and C) the reaction product of i) one or more polyisocyanates with ii) a hydroxyl component containing ii-a) one or more hydroxy functional (meth)acrylates.Type: GrantFiled: April 12, 2005Date of Patent: June 7, 2011Assignee: Bayer MaterialScience LLCInventors: Richard R. Roesler, Charles A. Gambino, Catherine M. Britsch
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Publication number: 20110126982Abstract: The present invention relates to moisture curable reactive adhesive compositions containing a visual indicator and methods for using these compositions. Specifically, the invention relates to a two part moisture curable reactive adhesive system, where one part consists of a prepolymer with moisture reactive groups and the second part consists of catalyst, a visual indicator and water. The presence of the indicator allows the combination of the two part system to be visible to the naked eye. The visible indicator ensures that the two part system is combined uniformly and completely to a desired substrate, but it does not interfere with the crosslinking reaction.Type: ApplicationFiled: December 1, 2010Publication date: June 2, 2011Inventors: Robert Brian Lawrence, Yingjie Li, Frank Swiezkowski
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Publication number: 20110039030Abstract: The invention relates to high-reactivity polyurethane compositions which contain uretdione groups and cure at low baking temperatures, to a process for the preparation and to their use for producing coating materials, especially surface coatings and adhesives, and also plastics.Type: ApplicationFiled: June 12, 2009Publication date: February 17, 2011Inventor: Emmanouil Spyrou
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Publication number: 20100298520Abstract: Disclosed is a method for preparing polyoxazolidones wherein an ether of a bisanhydrohexitol is reacted with a diisocyanate under conditions which form polyoxazolidones. Preferred bisanhydrohexitols include isoidide, isomannide and isosorbide. The polyoxazolidones are highly crosslinked, rigid, and have high solvent resistance.Type: ApplicationFiled: May 21, 2009Publication date: November 25, 2010Applicant: NEW JERSEY INSTITUTE OF TECHNOLOGYInventors: Anthony J. East, Michael Jaffe, Willis B. Hammond, George Collins, Ronald N. DeMartino, Zohar Ophir
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Patent number: 7834123Abstract: A two component polyurethane adhesive composition having one or more polyols as a first component and one or more isocyanates as a second component. The composition also comprises one or more catalysts and one or more blocking agents to delay the curing reaction. The composition provides long open time, improved wet out of the substrates to be bonded, a rapid cure rate and excellent final bond performance at room and elevated temperatures. Optional ingredients, such as fillers, chain extenders and plasticizers may be added as desired. In one embodiment, the catalyst is a tin catalyst such as dibutyl tin dilaurate which may optionally be combined with other catalysts such as tertiary amines. The blocking agent in one embodiment is 8-hydroxyquinoline.Type: GrantFiled: May 19, 2006Date of Patent: November 16, 2010Assignee: Henkel AG & Co. KGaAInventor: Wu Suen
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Patent number: 7816562Abstract: The invention is amido-borate compounds containing one or more anionic amido-borate moieties comprising an organoborate anion wherein the boron atom is bonded to a nitrogen atom of ammonia or an organic compound containing one or more nitrogen atoms, such as a hydrocarbyl amine, a hydrocarbyl polyamine, or an aromatic heterocycle containing one or more nitrogen atoms, and a cationic counter ion.Type: GrantFiled: October 6, 2006Date of Patent: October 19, 2010Assignee: Dow Global Technologies Inc.Inventors: Shaoguang Feng, Gary L. Jialanella, Peter Nickias, Toni Ristoski
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Publication number: 20100249359Abstract: A method of manufacturing a polyurethane compound comprises mixing together a polyol, a polyisocyanate compound and a catalyst and allowing the mixture to cure to form a polyurethane, and is characterised in that the catalyst is a neutral complex of a metal selected from Ti, Zr, Hf, Al, Fe, Bi or Sn and a multidentate organic ligand having: a) a number of anionic donor sites=x; b) a number of neutral donor sites, capable of forming a co-ordinate bond with the metal, =y; c) where x+y=from 5 to 8; d) x is from 2 to 4; e) the ligand molecule is of a size and conformation to enable each of the anionic donor sites and neutral donor sites to form a bond with the same metal atom.Type: ApplicationFiled: June 16, 2008Publication date: September 30, 2010Applicant: Johnson Matthey PLCInventors: Arran Alexander Dickon Tulloch, David Jenkins, Joseph Atkinson, Mark Alexander Kent, Alan Cooper
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Publication number: 20100249310Abstract: The invention relates to compositions with isocyanate groups, which can be cured without an isocyanate-reactive component, to processes for preparing such compositions and to the use thereof.Type: ApplicationFiled: December 8, 2008Publication date: September 30, 2010Applicant: EVONIK DEGUSSA GmbHInventor: Emmanouil Spyrou
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Publication number: 20100234485Abstract: The present invention provides organometallic latent catalyst compounds, which are suitable as catalysts in polyaddition or polycondensation reactions which are catalysed by a Lewis acid type catalyst, in particular for the crosslinking of a blocked or unblocked isocyanate or isothiocyanate component with a polyol or polythiolto form a polyurethane (PU).Type: ApplicationFiled: October 10, 2008Publication date: September 16, 2010Applicant: BASF SEInventors: Rachel Kohli Steck, Caroline Lordelot, Thomas Vogel, Gisele Baudin, Paul Brown, Kurt Dietliker, Rinaldo Huesler, Tunja Jung, Peter Simmendinger, Katia Studer, Antoine Carroy
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Publication number: 20100222539Abstract: The present invention relates to new high-functionality, highly branched or hyperbranched polylysines, to processes for preparing them, and to their use.Type: ApplicationFiled: May 6, 2010Publication date: September 2, 2010Applicant: BASF SEInventors: Bernd Bruchmann, Harm-Anton Klok, Markus Thomas Scholl
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Patent number: 7772353Abstract: This invention relates to polyurethane elastomers and to a process for their production. These elastomers comprise the reaction product of a (cyclo)aliphatic isocyanate component having an NCO group content of about 20 to about 45%, with an isocyanate-reactive component comprising one or more polyether polyols which is free of amine groups, and a low molecular weight organic compound containing two hydroxyl groups and which is free of amine groups, in the presence of one or more catalysts.Type: GrantFiled: December 15, 2005Date of Patent: August 10, 2010Assignee: Bayer MaterialScience LLCInventors: Stephen J. Harasin, Richard R. Roesler, Rick V. Starcher, Carol L. Kinney, James T Garrett
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Patent number: 7767778Abstract: The present invention relates to polyurethane powder coating compositions that do not split off blocking agents and have a low stoving temperature. The powder coating compositions contain a hydroxyl functional binder component having a content of carboxyl groups of from 0.5 to 2.0 wt. %, a polyaddition compound, at least one zinc compound as a hardening catalyst, and a compound reactive to carboxyl groups.Type: GrantFiled: March 30, 2005Date of Patent: August 3, 2010Assignee: Bayer MaterialScience AGInventors: James Rawlins, Michael Grahl, Dorota Greszta-Franz, Hans-Josef Laas, Reinhard Halpaap
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Patent number: 7737241Abstract: The invention is a system for initiating free radical polymerization comprising: a) in one part, one or more amido-borate compounds containing one or more anionic amido-borate moieties comprising an organoborate wherein the boron atom is bonded to a nitrogen atom of ammonia or an organic compound containing one or more nitrogen atoms, such as a hydrocarbyl amine, a hydrocarbyl polyamine, or an aromatic heterocycle containing one or more nitrogen atoms and optionally containing one or more heteroatoms or heteroatom containing functional moieties, and one or more cationic counter ions and b) in a second part, a liberating compound which reacts with the nitrogen atom(s) bound to the boron atom(s) upon contact with the amido-borate to form an organoborane radical.Type: GrantFiled: October 6, 2006Date of Patent: June 15, 2010Assignee: Dow Global Technologies Inc.Inventors: Shaoguang Feng, Gary L. Jialanella, Peter Nickias, Toni Ristoski
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Patent number: 7728097Abstract: A novel macromer or mixture thereof is described herein, comprising benzoyl isocyanate terminal moieties and at least two residues of a water-soluble polymer having a molecular weight ranging from 80 to 10,000 adjacent to the carbonyl group of the benzoyl isocyanate moieties, thereby forming at least two ester linkages in the macromer or mixture thereof. A method for making a diisocyanate macromer is also described herein.Type: GrantFiled: June 28, 2006Date of Patent: June 1, 2010Assignee: Ethicon, Inc.Inventors: Benjamin D. Fitz, Michael Justus, Christopher M. Westergom
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Publication number: 20100126664Abstract: A polyester polyol prepared from a composition including a phthalic acid based material containing more than 10% by weight of ortho-phthalic or derivatives thereof, an aliphatic dicarboxylic acid (e.g., dodecanedioic acid), and a polyol (e.g., a glycol). A polyurethane adhesive, such as a polyurethane reactive hot-melt adhesive, is made using the polyester polyol, which exhibits improved initial bonding strength, shortened setting time, and ability to bond to low surface energy substrates such as ABS. The methods to prepare the polyester polyol and the polyurethane adhesive, and the method to use them are also disclosed.Type: ApplicationFiled: February 5, 2010Publication date: May 27, 2010Inventor: Michael E. O'Brien
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Patent number: 7709589Abstract: The invention relates to high-reactivity polyurethane compositions. The invention further relates to low temperature curable polyurethane compositions which contain uretdione groups, particularly useful for polyurethane powder coating compositions and adhesive compositions, and to processes for preparing and using the same.Type: GrantFiled: October 6, 2004Date of Patent: May 4, 2010Assignee: Evonik Degussa GmbHInventors: Emmanouil Spyrou, Holger Loesch, Dirk Hoppe
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Patent number: 7666970Abstract: The invention relates to a process for preparing binders which contain 1) allophanate groups, 2) groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups) and 3) optionally NCO-reactive groups, by reacting at temperatures ?130° C. A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds that contain isocyanate-reactive groups and groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups), and then C) with one or more saturated, hydroxyl-containing compounds other than B), at least one of these compounds having an OH functionality of ?2, in the presence of D) a catalyst containing one or more ammonium salts or phosphonium salts of aliphatic or cycloaliphatic carboxylic acids, the reaction with compounds C) taking place at least proportionally with the formation of allophanate groups.Type: GrantFiled: September 1, 2005Date of Patent: February 23, 2010Assignee: Bayer MaterialScience AGInventors: Jan Weikard, Christoph Gürtler, Wolfgang Fischer, Jörg Schmitz, Holger Mundstock
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Publication number: 20090306240Abstract: The present invention involves the design of a radiation curable organic pre polymer resin material based on urethane acrylic linkage synthesized from the natural renewable resource cardanol or a derivative thereof, for coating application. These new molecules have a faster and better curing rate compared to the starting renewable resource—cardanol. This is brought about by the hydrogen bonding of the urethane linkage which leads to a pre organization of the molecules in such a way as to bring the cross linkable double bonds closer to each other. The present invention also involves a UV curable formulation of the above mentioned resins along with 2-10 parts by weight of a photopolymerization initiator. The resin, either in a formulation or alone turns into a cross linked film upon photopolymerization in presence of photoinitiator under a UV curable radiation source like a mercury vapor pressure lamp.Type: ApplicationFiled: December 30, 2005Publication date: December 10, 2009Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCHInventors: Asha Syamakumari, Chennakkattu Krishna Sadasivan Pillai
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Patent number: 7576143Abstract: A polyurethane acrylate (A), comprises, as synthesis components, (a) at least one polyisocyanate which comprises isocyanurate groups, based on 1-isocyanato-3,3,5-trimethyl-5-(isocyanatomethyl)cyclohexane, (b) at least one polyisocyanate which comprises isocyanurate groups, based on hexamethylene diisocyanate, (c) at least one aliphatic and/or cycloaliphatic diisocyanate, (d1) at least one polyetherdiol or polyesterdiol having a molecular weight ranging from 500 to 2000, (d2) optionally, at least one diol having a molecular weight of less than 220 g/mol, (e) at least one compound having at least one group reactive toward isocyanate and at least one unsaturated group capable of free radical polymerization, and (f) optionally, at least one compound having exactly one group reactive toward isocyanate.Type: GrantFiled: March 8, 2006Date of Patent: August 18, 2009Assignee: BASF AktiengesellschaftInventors: Reinhold Schwalm, Erich Beck, Klaus Menzel
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Patent number: 7572876Abstract: A highly reactive polyurethane powder coating composition, which contains uretdione groups that are hardenable at low temperatures, contains A) at least one uretdione-containing powder coating hardener based on aliphatic, (cyclo)aliphatic or cycloaliphatic polyisocyanates and hydroxyl-containing compounds, the hardener having a melting point of from 40 to 130° C., a free NCO content of less than 5% by weight, and a uretdione content of 6-18% by weight; B) at least one hydroxyl-containing polymer having a melting point of from 40 to 130° C., and an OH number of between 20 and 200 mg KOH/g; C) 0.001-3% by weight of at least one tetraalkyl ammonium carboxylate catalyst, based on a total amount of components A) and B). Components A) and B) are present in a ratio so that for each hydroxyl group of component B) there is from 0.3 to 1 uretdione group of component A).Type: GrantFiled: May 3, 2004Date of Patent: August 11, 2009Assignee: Evonik Degussa GmbHInventors: Emmanouil Spyrou, Holger Loesch, Andreas Wenning
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Methods and systems for the selective formation of thiourethane bonds and compounds formed therefrom
Publication number: 20090124762Abstract: The present techniques relate to thiourethane compositions formed by reacting a reactive composition containing active molecules having an average of at least one thiol group per active molecule and an average of at least one hydroxyl group per active molecule with a monomer composition containing monomer molecules having an average of at least two isocyanate groups per monomer molecule. The reactions are performed in the presence of an amine catalyst, which may preferentially react thiol groups over hydroxyl groups, thus forming a thiourethane composition having, on average, more hydroxyl groups than thiol groups and more thiourethane groups than urethane groups, on a normalized basis.Type: ApplicationFiled: November 8, 2007Publication date: May 14, 2009Inventors: Chad W. Brown, Mitchell D. Refvik, Jim D. Byers, Roger A. Patton -
Publication number: 20090093606Abstract: The present invention relates to methods for synthesizing shape memory polyurethanes, and fibers therefrom. The polyurethanes can be synthesized via solution polymerization or bulk polymerization. Following synthesis, the polyurethanes can be treated via wet spinning, dry spinning, reaction spinning, melt spinning, or electro spinning.Type: ApplicationFiled: October 9, 2007Publication date: April 9, 2009Applicant: The Hong Kong Polytechnic UniversityInventors: Jinlian Hu, Qinghao Meng, Yong Zhu, Jing Lu, Haitao Zhuo
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Publication number: 20080300376Abstract: Process for preparing multimetal cyanide compounds, which comprises the steps a) reaction of the aqueous solution of a metal salt of the general formula (I) M1gXn ??(I) with the aqueous solution of a cyanometalate compound of the general formula (II) M3r[M2(CN)b]d, , ??(II) if appropriate in the presence of organic ligands, organic additives and/or surface-active agents, to form a multimetal cyanide compound of the general formula (III) M1a[M2(CN)b]d.fM1jXk.h(H2O).eL.Type: ApplicationFiled: November 23, 2006Publication date: December 4, 2008Applicant: BASF SEInventors: Michael Triller, Raimund Ruppel
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Publication number: 20080262186Abstract: Disclosed is a method for making oligomeric and polymeric isocyanates, particularly uretdiones and isocyanurates, by reacting diisocyanates in the presence of a catalyst, wherein the catalyst comprises either free N-heterocyclic carbenes, imidazolylidene carboxylates, triazolylidene carboxylates, or salts thereof.Type: ApplicationFiled: May 19, 2005Publication date: October 23, 2008Applicant: University of Utah Research FoundationInventors: Janis Louie, Hung A. Duong, Michael J. Cross
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Patent number: 7396875Abstract: The present invention is directed to a waterborne, UV-curable polyurethane emulsion and the use thereof in producing soft touch coatings. The emulsion is prepared by a) reacting specified hydroxy-functional components with di- and/or polyisocyanates, b) forming a dispersion of the resultant product with water and reacting the dispersion with amine functional materials.Type: GrantFiled: January 20, 2004Date of Patent: July 8, 2008Assignee: Bayer MaterialScience LLCInventors: Aaron A. Lockhart, Michael J. Dvorchak, Lyubov K. Gindin
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Publication number: 20080132667Abstract: A polyimide resin is produced by the reaction of a compound selected from 1,2,4,5-cyclohexanetetracarboxylic acid, dianhydride thereof and reactive derivatives thereof and a compound selected from diamines and diisocyanates each containing at least one phenylene group and at least one isopropylidene group. The polyimide resin is colorless and exhibits a high heat resistance, a high transparency and a low water absorption.Type: ApplicationFiled: December 19, 2005Publication date: June 5, 2008Inventors: Takashi Makinoshima, Shuta Kihara
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Publication number: 20080035571Abstract: This invention relates to the composition of an integrally-layered polymeric membrane and a process for utilizing the integrally-layered polymeric membrane components of a feedstream. More particularly, but not by way of limitation, this invention relates to the composition of an integrally-layered polymeric membrane and a process for utilizing the integrally-layered polymeric membrane in the separation of aromatics from a hydrocarbon based feedstream. The polymeric membranes of the present invention are fabricated by chemically crosslinking adjacent polymer membrane layers of the same or differing copolymer solutions to produce an integrally-layered polymeric membrane with improved separations properties.Type: ApplicationFiled: August 3, 2007Publication date: February 14, 2008Inventors: Craig Y. Sabottke, Bal K. Kaul, Dennis G. Peiffer
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Publication number: 20080035572Abstract: This invention relates to the fabrication of a polymeric membrane and a process for utilizing the polymeric membrane for separating components of a feedstream. More particularly, but not by way of limitation, this invention relates to the fabrication of a polymeric membrane and a process for utilizing the polymeric membrane in the separation of aromatics from a hydrocarbon based feedstream. The membranes of the present invention possess low soft segment glass transition temperatures and improved separation characteristics.Type: ApplicationFiled: August 3, 2007Publication date: February 14, 2008Inventors: Craig Y. Sabottke, Bal K. Kaul, Dennis G. Peiffer
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Patent number: 7317112Abstract: A method of dimerizing isocyanates using sulphonamide anions as a dimerization catalyst for the isocyanates and also to a process for preparing oligomeric isocyanates using such catalysts.Type: GrantFiled: August 4, 2004Date of Patent: January 8, 2008Assignee: Bayer MaterialScience AGInventors: Jürgen Köcher, Hans-Josef Laas
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Patent number: 7307135Abstract: A high-reactivity liquid polyurethane composition which contains at least one uretdione group and cures at a low baking temperature can be used for producing plastics, particularly surface coatings and adhesives. The polyurethane composition contains A) at least one curing agent which contains at least one uretdione group and is obtained from i) an aliphatic polyisocyanate, a (cyclo)aliphatic polyisocyanate, a cycloaliphatic polyisocyanate or mixtures thereof, and ii) at least one hydroxyl-containing compound, the curing agent having a free NCO content of less than 5% by weight and a uretdione content of from 1 to 18% by weight; and B) at least one catalyst.Type: GrantFiled: October 6, 2004Date of Patent: December 11, 2007Assignee: Degussa AGInventor: Emmanouil Spyrou
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Patent number: 7300997Abstract: Polyurethane powder coating compositions based on epoxy-terminated polyaddition compounds having uretdione groups, which cure at low baking temperatures, a process for preparing such compositions, and their use for producing plastics, especially polyurethane powder coatings, which crosslink at low baking temperatures to give high-gloss or matt, light-stable and weather-stable coating films.Type: GrantFiled: October 14, 2004Date of Patent: November 27, 2007Assignee: Degussa AGInventors: Andreas Wenning, Emmanouil Spyrou
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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: 7253244Abstract: A one-pack polyurethane adhesive containing a polyisocyanate prepolymer and at least one aminoether polyol, having a molar ratio of ether groups to amino nitrogen in the aminopolyether polyol of 7 to 30.Type: GrantFiled: March 11, 2004Date of Patent: August 7, 2007Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Bernhard Gruenewaelder, Werner Haller, Bernhard Schoettmer, Thomas Empt, Hermann Kluth
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Patent number: 7235152Abstract: A storage stable adhesive paste composition is described. It contains a plurality of first solid particles comprising a surface protected polyisocyanate and a plurality of second solid particles of polymer having functional groups that react with the polyisocyanate. The particles may be protected by encapsulation in a layer of a material that is not reactive to the polyisocyanate. Preferably, the protective layer also is not reactive to the polymer having functional groups that react with the polyisocyanate. The polyisocyanate particles also can be protected by a layer formed by chemically reacting said polyisocyanate particles with isocyanate reactive compounds to form a protective surface layer around said polyisocyanate particles.Type: GrantFiled: May 13, 2003Date of Patent: June 26, 2007Assignee: Bostik-Findley LimitedInventors: Jeremy Bell, Andrew Crabtree
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Patent number: 7223801Abstract: A composition and method for protecting pipeline joints is disclosed. A mold covers the exposed pipeline joint. A reaction composition including a polyol, an isocyanate, and an ester, preferably 2,2,4-trimethyl-1,2-pentanediol diisobutyrate, is added to the mold and allowed to react to form a polymer.Type: GrantFiled: March 5, 2004Date of Patent: May 29, 2007Assignee: Baysystems North America LLCInventor: Scott A Brown
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Patent number: 7220338Abstract: A process for making an article contacted with a bonding agent that is prepared by providing an admixture including a latex and a polyol present in an amount of less than 20 wt. % of the admixture for providing hydroxyl functionality. The isocyanate is admixed with the latex/polyol admixture to form the bonding agent. A layer of the bonding agent is contacted with a substrate.Type: GrantFiled: July 12, 2002Date of Patent: May 22, 2007Assignee: Rohm and Haas CompanyInventors: Mai Chen, Jeffrey Harold Deitch, Christine Margaret Zack
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Patent number: 7214762Abstract: The present invention provides a new redox-active polymer capable of an adequate redox reaction even at low temperature and effectively usable as a high-capacity, high-energy density battery, a large-area electrochromic element, or a biochemical sensor using a microelectrode. This redox-active polymer is of being prepared by polymerizing an aromatic or heterocyclic compound having two or more thiourea groups with an aromatic or heterocyclic compound having two or more isothiocyanate groups. For example, The redox-active polymer may be of being prepared by polymerizing N,N?-1,4-phenylene-bis-thiourea with phenylene-1,4-diisothiocyanate. The redox-active polymer is suitable as an electrode material, particularly a cathode for lithium secondary batteries.Type: GrantFiled: November 21, 2000Date of Patent: May 8, 2007Assignee: Japan Science and Technology AgencyInventors: Tadaoki Mitani, Yoshihiro Iwasa, Hiroshi Uemachi
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Patent number: 7202302Abstract: Polyisocyanurate systems, pultrusion of those systems to produce reinforced polyisocyanurate matrix composites, and to composites produced thereby. The polyisocyanurate systems include a polyol component, an optional chain extender, and an isocyanate. The polyisocyanurate systems have extended initiation times of about 5 minutes to about 30 minutes at room temperature, and can be snap cured.Type: GrantFiled: November 17, 2003Date of Patent: April 10, 2007Assignee: Huntsman International LLCInventors: Evan H. Cheolas, Berend Eling, Ravi R. Joshi, Alan McClelland, Ajay Padsalgikar, Andreas H. Rothacker
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Patent number: 7098289Abstract: The invention relates to novel compounds containing uretdione groups, to a process for preparing them by dimerizing aliphatic and/or cycloaliphatic isocyanates containing exclusively secondary and/or tertiary isocyanate groups and also to the use of uretdione polyisocyanates obtainable by this process from diisocyanates containing exclusively secondary and/or tertiary isocyanate groups as a starting component for polyurethane polymers, in particular as an isocyanate component in the preparation of uretdione powder coating crosslinkers.Type: GrantFiled: July 3, 2003Date of Patent: August 29, 2006Assignee: Bayer AktiengesellschaftInventors: Hans-Josef Laas, Reinhard Halpaap, Frank Richter, Jürgen Köcher
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Patent number: 7091341Abstract: A method is described of preparing (poly)isocyanurate polyisocyanates by catalytic cyclotrimerization of isocyanates. A catalytic system is used which includes a cyclotrimerization catalyst based on a quatemary ammonium salt and imidazole as a cocatalyst.Type: GrantFiled: August 14, 2003Date of Patent: August 15, 2006Assignee: Rhodia ChimieInventors: Denis Revelant, Jean-Marie Bernard
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Patent number: 7078442Abstract: A composition and method for consolidating aggregate material is disclosed. The method includes introducing a reaction composition into the aggregate material and allowing it to reach on form a polymer which binds the aggregate together. The composition includes polyol, isocyanate, and ester.Type: GrantFiled: March 5, 2004Date of Patent: July 18, 2006Assignee: Baysystems North America LLCInventor: Scott A Brown