From Organic Nitrile Group-containing Compound Patents (Class 528/362)
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Patent number: 10174168Abstract: There is provided a composition for forming a passivation film that satisfies electric insulation, heat-tolerance, solvent-tolerance, and a dry etch back property at the same time.Type: GrantFiled: July 5, 2016Date of Patent: January 8, 2019Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Mamoru Tamura, Hiroshi Ogino, Tomoyuki Enomoto
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Patent number: 9718961Abstract: A curable composition includes a functionalized fluoropolyether comprising at least one first free-radically reactive functional group, a functionalized polysiloxane comprising at least one second free-radically reactive functional group, and an effective amount of a free-radical curing system. The curable composition can be cured to making a fluoropolyether-polysiloxane elastomer. Compositions and shaped articles including the fluoropolyether-polysiloxane elastomer are also disclosed.Type: GrantFiled: June 13, 2014Date of Patent: August 1, 2017Assignee: 3M Innovative Properties CompanyInventors: Steven G. Corveleyn, Rudolf J. Dams, Tom Opstal, Miguel A. Guerra
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Patent number: 8981027Abstract: Two part cyanoacrylate/cationically curable adhesive systems are provided.Type: GrantFiled: March 15, 2013Date of Patent: March 17, 2015Assignee: Henkel IP & Holding GmbHInventors: Emer Ward, Susan Reilly, Patricia A. Hedderman, Rachel Hersee, Deborah A. Moore
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Patent number: 8937147Abstract: Processes that make nitrogen-containing compounds include converting succinic acid (SA) or monoammonium succinate (MAS) derived from a diammonium succinate (DAS)- or MAS-containing fermentation broth to produce such compounds including diaminobutane (DAB), succinic dinitrile (SDN), succinic amino nitrile (SAN), succinamide (DAM), and related polymers.Type: GrantFiled: May 18, 2011Date of Patent: January 20, 2015Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Bernard D. Dombek
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Patent number: 8921510Abstract: A compound having: one or more of the below repeat units, one or more terminating Ar—NH— groups bound to carbon radicals, and one or more terminating —H groups bound to nitrogen radicals. Each R is an organic group and each Ar is an aromatic group. The compound is not a thermoset. A method of: mixing an aromatic amine having the formula Ar—NH2 with a phthalonitrile compound, heating the mixture to form the compound described above, and cooling the mixture before the onset of gelation.Type: GrantFiled: September 26, 2014Date of Patent: December 30, 2014Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Teddy M. Keller, Matthew Laskoski
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Patent number: 8865792Abstract: This invention relates to medicine, more specifically, to surgical devices, and can be used for gluing soft body tissues. The medical glue comprises 3-methacryloxysulpholane, N-butyl-2-cyanoacrylate and at least one stabilizer.Type: GrantFiled: February 6, 2012Date of Patent: October 21, 2014Inventor: Gennady Leplianin
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Patent number: 8859712Abstract: A method of: providing a solution of a dichloroaromatic compound having an electron-withdrawing group bound to each aromatic ring containing one of the chloride groups; a dihydroxyaromatic compound; an organic transition metal complex or a transition metal salt; a base; and a solvent; and heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form a dimetallic salt of an aromatic ether oligomer. The molar ratio of the dihydroxyaromatic compound to the dichloroaromatic compound is greater than 2:1. Water formed during the heating is concurrently distilled from the solution.Type: GrantFiled: May 27, 2014Date of Patent: October 14, 2014Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Teddy M. Keller, Matthew Laskoski, Andrew Saab
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Publication number: 20140262021Abstract: Allyl-cyanoacrylate-containing compositions with an anhydride aromatic component, which when cured confers improved moisture resistance, are provided.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: Henkel Ireland LimitedInventors: Ciara Goff, Marisa Phelan, John Guthrie, Cormac Duffy, Sabine Horn, Christina Despotopoulou
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Publication number: 20140275472Abstract: A method of: providing a solution of a dichloroaromatic compound having an electron-withdrawing group bound to each aromatic ring containing one of the chloride groups; a dihydroxyaromatic compound; an organic transition metal complex or a transition metal salt; a base; and a solvent; and heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form a dimetallic salt of an aromatic ether oligomer. The molar ratio of the dihydroxyaromatic compound to the dichloroaromatic compound is greater than 2:1. Water formed during the heating is concurrently distilled from the solution.Type: ApplicationFiled: May 27, 2014Publication date: September 18, 2014Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Teddy M. Keller, Matthew Laskoski, Andrew Saab
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Patent number: 8815975Abstract: Absorbable and non-absorbable cyanoacrylate tissue adhesive/sealant formulations include at least one multipurpose carboxylic, acid-bearing C-succinylated polymeric rheology modifier capable of increasing the viscosity of the liquid formulation, while controlling the anionic polymerization of the cyanoacrylate monomers and increasing the compliance of the cured solid adhesive.Type: GrantFiled: April 18, 2009Date of Patent: August 26, 2014Assignee: Poly-Med, Inc.Inventors: Shalaby W. Shalaby, Michael Aaron Vaughn, James M. Lindsay, III
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Patent number: 8802811Abstract: A high yield and high productivity processes for preparing 3-hydroxyglutaronitrile by reacting an epihalohydrin or a 4-halo-3-hydroxy-butanenitrile, or analogous compound containing a different leaving group, with cyanide (CN—) in the presence of water and an ionic liquid. The use of an ionic liquid as a cosolvent with water results in increased productivity and selectivity.Type: GrantFiled: August 14, 2012Date of Patent: August 12, 2014Assignee: E I du Pont de Nemours and CompanyInventor: Jelena Cirakovic
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Patent number: 8742048Abstract: Two part cyanoacrylate/cationically curable adhesive systems, are provided.Type: GrantFiled: January 8, 2013Date of Patent: June 3, 2014Assignee: Henkel IP & Holding GmbHInventors: Rachel M. Hersee, Barry N. Burns, Rory B. Barnes, Ray P. Tully, John Guthrie
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Patent number: 8729219Abstract: A polyarylene block copolymer can provide a solid polymer electrolyte and proton conductive membrane having high proton conductivity, high dimensional stability, and high mechanical strength. The polyarylene block copolymer also has reduced swelling in hot water and reduced shrinkage in drying. The polyarylene block copolymer includes a polymer segment having a sulfonic acid group, and a polymer segment having substantially no sulfonic acid group.Type: GrantFiled: June 8, 2011Date of Patent: May 20, 2014Assignee: JSR CorporationInventors: Yoshitaka Yamakawa, Toshiaki Kadota, Takuya Murakami, Yuuji Tsunoda
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Patent number: 8710174Abstract: A polymer containing a triazine ring-containing repeating unit structure represented by, for example, formula (23) or (24), which alone can achieve high heat resistance, high transparency, high refraction index, high solubility, and low volume shrinkage, without adding a metal oxide.Type: GrantFiled: September 6, 2013Date of Patent: April 29, 2014Assignee: Nissan Chemical Industries, Ltd.Inventors: Naoya Nishimura, Taku Kato, Masaaki Ozawa, Masahiro Hida, Yasuyuki Koide
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Publication number: 20140066536Abstract: This invention relates to polymer polyols comprising one or more base polyols; one or more ethylenically unsaturated monomers in which at least one of the monomers is styrene which contains less than or equal to 1000 ppm of impurities; with one or more preformed stabilizers; in the presence of at least one free radical polymerization initiator; and optionally, one or more chain transfer agents.Type: ApplicationFiled: August 30, 2012Publication date: March 6, 2014Applicant: Bayer MaterialScience LLCInventors: Rick L. Adkins, Shriniwas S. Chauk, James R. Charron
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Publication number: 20140039151Abstract: A method of: providing a solution of a dichloroaromatic compound having an electron-withdrawing group bound to each aromatic ring containing one of the chloride groups; an excess of a dihydroxyaromatic compound; an organic transition metal complex or a transition metal salt; a base; and a solvent; and heating the solution to a temperature at which the dichloroaromatic compound and the dihydroxyaromatic compound react to form an aromatic ether oligomer that is a dihydroxy-terminated compound or a dimetallic salt thereof. Water formed during the heating is concurrently distilled from the solution. A method of curing a phthalonitrile monomer in the presence of an acid and a curing agent to form a phthalonitrile thermoset.Type: ApplicationFiled: March 15, 2013Publication date: February 6, 2014Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Teddy M Keller, Matthew Laskoski, Andrew Saab
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Publication number: 20130345388Abstract: The invention relates to a process for synthesizing a nitrile-fatty acid (heminitrile) from unsaturated fatty acids, in the form of an acid or a simple ester or a “complex” ester of triglyceride type, which is first of all converted into an unsaturated fatty nitrile which is subjected to oxidative cleavage using H2O2 as oxidizing agent. This process can be used for preparing polyamide monomers, such as ?-amino acids or diamines or diacids equivalent to said heminitrile and for obtaining polyamides from raw materials which are of natural origin and from a renewable source.Type: ApplicationFiled: December 14, 2011Publication date: December 26, 2013Applicant: ARKEMA FRANCEInventors: Markus Brandhorst, Jean-Luc Couturier, Jean-Luc Dubois
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Patent number: 8511464Abstract: Stimuli-responsive highly absorbent superabsorbent polymers (SAPs) are used to harness water to augment water supply and solve water crisis. Rain water is harnessed in fabric-based sachets or bags partially filled with the polymers. The hydrated polymers are used to store water in warehouses for an extended period of time and the invention may obviate the need to construct controversial huge dams and canals or drill wells. The stored water in superabsorbent polymers is released at the point of use by any stimulus which may be light-induced, electrical, thermal or chemical treatment. SAPs with 2000 g/g of absorbency can yield 99.95% pure water in solid/gel form. An ultra SAP with absorbency of 10,000 g/g of the polymer could hold 10 billion cu.m. of water in one million tonnes of the polymer. This is more than the storage capacity of a typical large dam over a river.Type: GrantFiled: June 20, 2012Date of Patent: August 20, 2013Inventor: Manilal J. Savla
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Publication number: 20130172519Abstract: Processes that make nitrogen-containing compounds include converting succinic acid (SA) or monoammonium succinate (MAS) derived from a diammonium succinate (DAS)- or MAS-containing fermentation broth to produce such compounds including diaminobutane (DAB), succinic dinitrile (SDN), succinic amino nitrile (SAN), succinamide (DAM), and related polymers.Type: ApplicationFiled: May 18, 2011Publication date: July 4, 2013Applicant: BIOAMBER S.A.S.Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Bernard D. Dombek
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Publication number: 20130144028Abstract: Processes include providing a clarified diammonium succinate (DAS)- or monoammonium succinate (MAS)- containing fermentation broth; distilling the broth of an overhead that includes water and ammonia, and a liquid bottoms that includes SA, and at least about 20 wt % water; cooling the bottoms to a temperature sufficient to cause the bottoms to separate into a liquid portion in contact with a solid portion that is substantially pure SA; separating the solid portion from the liquid portion; and converting the solid portion to produce nitrogen containing compounds such as diamino butane (DAB), succinic dinitrile (SDN), succinic amino nitrile (SAN) or succinamide (DAM) and downstream products.Type: ApplicationFiled: May 17, 2011Publication date: June 6, 2013Inventors: Olan S. Fruchey, Leo E. Manzer, Dilum Dunuwila, Brian T. Keen, Brooke A. Albin, Nye A. Clinton, Bernard D. Dombek
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Publication number: 20130053497Abstract: Two part cyanoacrylate/cationically curable adhesive systems are provided, which contain vinyl ethers.Type: ApplicationFiled: August 23, 2012Publication date: February 28, 2013Applicant: Henkel Ireland Ltd.Inventors: Raymond P. TULLY, Barry N. BURNS, Emer WARD, Mark LOANE, Rachel M. HERSEE
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Publication number: 20120297668Abstract: Polyolefinic amines may be produced in a reaction comprising contacting an olefin or a polyolefin with an azo compound under free radical conditions to form a polyolefinic nitrile having an average molecular weight of at least 250, followed by reducing the polyolefinic nitrile to a corresponding polyolefinic amine. The polyolefinic amines produced by the reaction may be included as a detergent in compositions, such as fuel compositions, additive compositions, and/or carrier compositions.Type: ApplicationFiled: August 10, 2012Publication date: November 29, 2012Applicant: Afton Chemical CorporationInventor: William Jay Colucci
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Publication number: 20120175316Abstract: A method for extracting at least one chemical element contained in a molten salt medium can include the following steps: a) putting the molten salt medium with the chemical element in contact with a monomer including at least one group able to complex the chemical element, the monomer thereby forming a coordination complex with the chemical element; and b) polymerizing the thereby complexed monomer.Type: ApplicationFiled: July 15, 2010Publication date: July 12, 2012Applicant: Commissariat a l'energie atomique et aux energies alternativesInventors: Frédéric Goettmann, Olivier Conocar, Agnès Grandjean, Daniel Meyer, Jérôme Lacquement
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Publication number: 20120136131Abstract: Provided is a method of living radical polymerization which does not necessitate complicated and intricate synthesis of a dormant species and which is highly efficient. A halogenated derivative compound is used as a dormant species for initiating living radical polymerization. The derivative compound is obtained by halogenating an alcohol compound having a non-conjugated structure or an amine compound having a non-conjugated structure with a halogenating agent capable of halogenating an alcohol or amine. A radical produced by elimination of halogen from the halogenated derivative compound is allowed to react with the unsaturated bond of the monomer. Thus, the monomer, which has a radical-reactive unsaturated bond, is polymerized by living radical polymerization. Preferably, the halogenating agent is a compound (NIS or the like) which also has a function as a catalyst.Type: ApplicationFiled: June 3, 2010Publication date: May 31, 2012Applicant: KYOTO UNIVERSITYInventors: Atsushi Goto, Jeong Sik Kim, Yoshinobu Tsujii, Takeshi Fukuda
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Publication number: 20120071609Abstract: A method for harnessing rain and dew water with superabsorbent polymers. Highly absorbent superabsorbent polymers which are stimuli-responsive are used to absorb rain/dew water to augment water supply and solve water crisis. The polymers may be recycled and rehydrated number of times. They may be an additional source for drinking water. The polymers are used for storage of water in warehouses and the invention may obviate the need to construct controversial huge dams and canals or drill wells. The stored water in superabsorbent polymers is released at the point of use by any stimulus which may be mechanical, light-induced, electrical, thermal treatment or chemical treatment. Superabsorbent polymers with absorbing power of at least 1000 times their own weight are preferred. With 2000 g/g of swelling capacity, we can have 99.95% pure water in solid/gel form. In solid form, water can be transported anywhere without leakage.Type: ApplicationFiled: September 13, 2011Publication date: March 22, 2012Inventor: Manilal J. Savla
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Publication number: 20110301257Abstract: A polyol composition comprising a polyol (a) and resin fine particles (b) dispersed in the polyol (a), and a method for producing the polyol composition are provided, wherein the resin fine particles (b) are particles such that an arithmetic standard deviation by volume of a particle size distribution of the particles, derived from respective values in 85 divisions of a range of 0.020 to 2000 ?m determined by a laser diffraction/scattering particle size distribution analyzer, is not more than 0.6. A resin fine particle-dispersed polyol composition that, even if the resin particles dispersed in the polyol have a small particle diameter, allows the production of a polyurethane resin having an excellent mechanical strength such as elongation at break, and a method for producing the same, are provided.Type: ApplicationFiled: August 16, 2011Publication date: December 8, 2011Applicant: SANYO CHEMICAL INDUSTRIES, LTD.Inventors: Shigekuni NAKADA, Hiroyuki WATANABE, Takayuki TSUJI, Hiroki MORI
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Patent number: 7977451Abstract: Membranes for use in methods and apparatuses for hemodialysis and hemofiltration are composed of at least one membrane comprising a polyarylethernitrile having structural units of formula 1, 2, 3 and 4 wherein Z is a direct bond, O, S, CH2, SO, SO2, CO, RPO, CH2, alkenyl, alkynyl, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, a C3-C12 aromatic radical or a combination thereof; R is a C6-12 aromatic radical or a C1-12 aliphatic radical; R1 and R2 are independently H, halo, nitro, a C1-C12 aliphatic radical, a C3-C12 cycloaliphatic radical, a C3-C12 aromatic radical, or a combination thereof; a is 0, 1, 2 or 3; b is 0, 1, 2, 3 or 4; m and n are independently 0 or 1; and Q and Z are different.Type: GrantFiled: December 15, 2006Date of Patent: July 12, 2011Assignee: General Electric CompanyInventors: Daniel Steiger, Gary William Yeager, Yanshi Zhang
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Publication number: 20100305278Abstract: A nitrile group-containing highly saturated copolymer rubber having an iodine value of 80 or less and containing a caprate in 0.01 to 0.4 wt %. Preferably, the caprate is an alkaline earth metal caprate or Group XIII metal caprate. According to present invention, it is possible to provide a nitrile group-containing highly saturated copolymer rubber improved in mold fouling resistance while maintaining good normal state physical properties and heat resistance when being made into a cross-linked product.Type: ApplicationFiled: December 26, 2008Publication date: December 2, 2010Inventors: Daizo Hosotani, Hiroyasu Nagamori, Shinya Ikeda
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Publication number: 20100261863Abstract: A multibranched polyoxyalkylene compound represented by the following formula (1): CH2-L1-(OA1)n-L2-X CH(OA2)mOR1 CH(OA2)mOR1 CH(OA2)mOR1 CH2(OA2)mOR1 ??(1) wherein R1 is the same or different and is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are the same or different and are an oxyalkylene group having 2 to 4 carbon atoms, n and m are the same or different and are an average number of moles of the oxyalkylene group added, n represents 0 to 1000, m is the same or different and represents 10 to 1000, X represents a functional group capable of reacting with an amino group, a mercapto group, an aldehyde group, a carboxyl group, a triple bond, or an azide group to form a chemical bond, and L1 and L2 are the same or different and are a single bond, an alkylene group, or an alkylene group in which at least one bond selected from an ester bond, a urethane bond, an amide bond, an ether bond, and an amino is interposed.Type: ApplicationFiled: March 31, 2010Publication date: October 14, 2010Applicant: NOF CORPORATIONInventors: Tsuyoshi TAKEHANA, Ken-ichiro NAKAMOTO, Chika ITOH
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Publication number: 20100148134Abstract: The present invention relates a binder composition and a photosensitive composition including the binder composition. In one embodiment, a binder composition includes a copolymer of monomer M1, M2, M3, M4, an iso octyl 3-mercaptopropionate and a thermal initiator, wherein the monomer M1 can be represented by the following formula: the monomers M2, M3 and M4 can be represented by the following formula, however the monomers M2, M3 and M4 are different from each other, wherein R1, R2, R3 can be selected from the group consisting of hydrogen and alkyl group, R4 is an aromatic group, R5 can be selected from the group consisting of hydrogen, aromatic groups, alkyl groups, substituted alkyl groups and alkyl groups interrupted by an oxygen atom. The copolymer has good developing ability and a black matrices made therefrom has good mechanical properties.Type: ApplicationFiled: September 9, 2009Publication date: June 17, 2010Inventor: Mikyong Yoo
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Publication number: 20100137554Abstract: This disclosure covers a new methodology to produce high performance, high temperature, thermoset resins having shape memory characteristics based on cyanate ester resins. This methodology is based on pericyclic polycyclotrimerizations by utilizing a heretofore unknown polymerization mechanism based on equilibrium controlled condensation and cyclization. A mono-functional cyanate ester resin is reacted with at least one molecule terminated with a moiety containing an active hydrogen. One example of molecules with a moiety terminated with an active hydrogen are amine terminated dimethylsiloxane. The resulting compound is heated and reacted with a difunctional cyanate ester resin and cured. The Tg of the final Cyanate Ester SMP can be matched to specific requirements by adjusting the ratio of the previous said elements and/or the addition of other agents to adjust the physical properties of the final Cyanate Ester SMP.Type: ApplicationFiled: November 21, 2006Publication date: June 3, 2010Inventors: Richard D. Hreha, Benjamin J. Vining, Robert M. Schueler, David M. Nickerson
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Publication number: 20100016466Abstract: The subject matter of the invention is a radically polymerizable dental material comprising at least two components. A first component of the dental material contains the salt of a CH-acidic compound, and an additional component contains an acid with acidity greater than that of the CH-acidic compound of the first component. Both components contain radically polymerizable monomers. When the two components are mixed, the acid of the second component converts the salt of the CH-acidic compound of the first component into a CH-acidic molecule, and the CH-acidic molecule triggers the radical polymerization of the monomers. In addition to the advantages of CH-acidic compounds in dental materials on the basis of a reactive resin, the invention achieves long-term storage stability as a result of an increase in the proportion of the reactive resin matrix in polymerizable dental materials.Type: ApplicationFiled: May 11, 2007Publication date: January 21, 2010Inventor: Rainer Lueck
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Patent number: 7642336Abstract: The disclosed compositions and methods for producing composite materials that are suitably adapted for use in elevated temperature environments generally include the use of oxyarylbisorthodinitrile matrix resins in conjunction with aromatic amines to produce an improved phthalonitrile-based composite. Various features and specifications may be controlled, adapted or otherwise optionally modified to improve the temperature-rated performance of the disclosed composite materials. Exemplary embodiments of the present invention generally provide composite materials that offer improved strength at temperatures in excess of 600° F.Type: GrantFiled: February 13, 2006Date of Patent: January 5, 2010Assignee: Raytheon CompanyInventors: Gray E. Fowler, Emerald J. Adair, Michael M. Liggett, Dong Zhang, Frank W. Harris, Robert A. Gray
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Patent number: 7582721Abstract: In a preparation of random polyoxadiazole copolymer by reaction of a mixture of oleum, hydrazine sulfate, terephthalic acid, and isophthalic acid, the improvement requires the addition of oleum in more than one step.Type: GrantFiled: May 1, 2006Date of Patent: September 1, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Kiu-Seung Lee, Harry Lee Smith, Jr.
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Patent number: 7537839Abstract: The present invention generally relates to anaerobically curable compositions of: (a) a cyanate ester compound having the structure of formula I: R1O—C?N)m??(I) ?wherein m is from 2 to 5 and R1 is an aromatic nucleus-containing residue; (b) a (meth)acrylate monomer; and (c) an anaerobic cure inducing composition comprising peroxide and saccharin, wherein said composition is free of added metallic catalyst.Type: GrantFiled: April 2, 2007Date of Patent: May 26, 2009Assignee: Henkel CorporationInventors: Shabbir Attarwala, Qinyan Zhu, Susan Lamtruong Levandoski
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Patent number: 7528216Abstract: In a preparation of random polyoxadiazole copolymer by reaction of a mixture of oleum, hydrazine sulfate, terephthalic acid, and isophthalic acid, the improvement requires the addition of oleum in more than one step.Type: GrantFiled: May 1, 2006Date of Patent: May 5, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Kiu-Seung Lee, Harry Lee Smith, Jr.
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Patent number: 7528217Abstract: Sulfonated polyoxadiazole polymers containing groups selected from:Type: GrantFiled: October 6, 2006Date of Patent: May 5, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Kiu-Seung Lee, Jon David Hartzler
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Publication number: 20080262183Abstract: Dithienopyrrole-containing copolymers, and organic semiconductors formed therefrom, used as p-type and donor compounds in semiconductors for organic photovoltaic (OPV) applications, such as solar cells or transistors, such as organic field effect transistors (OFET). Organic semiconductors formed herein have a low bandgap and high absorbance, increasing the efficiency of a transistor or a solar cell. Such dithienopyrrole-containing copolymers also have excellent hole-conductivity which may be even further improved through oxidation.Type: ApplicationFiled: April 17, 2007Publication date: October 23, 2008Inventor: Lutz Uwe Lehmann
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Patent number: 7427394Abstract: Poly(?-amino esters) prepared from the conjugate addition of bis(secondary amines) or primary amines to a bis(acrylate ester) are described. Methods of preparing these polymers from commercially available starting materials are also provided. These tertiary amine-containing polymers are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems. Given the poly(amine) nature of these polymers, they are particularly suited for the delivery of polynucleotides. Nanoparticles containing polymer/polynucleotide complexes have been prepared. The inventive polymers may also be used to encapsulate other agents to be delivered. They are particularly useful in delivering labile agents given their ability to buffer the pH of their surroundings. A system for preparing and screening polymers in parallel using semi-automated robotic fluid delivery systems is also provided.Type: GrantFiled: May 28, 2003Date of Patent: September 23, 2008Assignees: Massachusetts Institute of Technology, The United States of Americas as represented by the Secretary of the ArmyInventors: Daniel G. Anderson, David M. Lynn, Akin Akinc, Robert S. Langer
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Publication number: 20080142442Abstract: Membranes for use in methods and apparatuses for hemodialysis and hemofiltration are composed of at least one polyarylethernitrile block copolymer having structural units of formula I wherein Z is a direct bond, O, S, CH2, SO, SO2, CO, RPO, CH2, alkenyl, alkynyl, a C1-C12aliphatic radical, a C3-C12cycloaliphatic radical, a C3-C12aromatic radical or a combination thereof; R is a C6-12 aromatic radical or a C1-12aliphatic radical; R1 and R2 are independently H, halo, nitro, a C1-C12aliphatic radical, a C3-C12cycloaliphatic radical, a C3-C12aromatic radical, or a combination thereof; a is 0, 1, 2 or 3; b is 0, 1, 2, 3 or 4; and m and n are independently 0 or 1.Type: ApplicationFiled: December 15, 2006Publication date: June 19, 2008Applicant: GENERAL ELECTRICInventors: Daniel Steiger, Yanshi Zhang, Gary William Yeager
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Patent number: 7271227Abstract: The present invention generally relates to curable compositions free of metallic catalysts. The inventive compositions are capable of curing when applied to a metal substrate. The inventive compositions provide improved thermal performance and enhanced cure strength on oily metal surfaces.Type: GrantFiled: April 20, 2004Date of Patent: September 18, 2007Assignee: Henkel CorporationInventors: Shabbir Attarwala, Qinyan Zhu, Susan Lamtruong Levandoski
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Patent number: 7244803Abstract: A dielectric for aluminum and copper metalizations is stable at high temperatures. Surprisingly, in spite of the elimination of water during the cyclization, the polymeric dielectrics are very suitable for filling narrow trenches. The filled trenches exhibit no defects and bubbles or cracks. The polybenzoxazoles have dielectric constants of k?2.7 and are suitable as an electrical insulator. Furthermore, these materials adhere very well on all surfaces relevant for micro-electronics.Type: GrantFiled: June 27, 2003Date of Patent: July 17, 2007Assignee: Infineon Technologies AGInventors: Recai Sezi, Andreas Walter, Anna Maltenberger, Klaus Lowack, Marcus Halik
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Patent number: 6998115Abstract: Poly(?-amino esters) prepared from the conjugate addition of bis(secondary amines) or primary amines to a bis(acrylate ester) are described. Methods of preparing these polymers from commercially available starting materials are also provided. These tertiary amine-containing polymers are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems. Given the poly(amine) nature of these polymers, they are particularly suited for the delivery of polynucleotides. Nanoparticles containing polymer/polynucleotide complexes have been prepared. The inventive polymers may also be used to encapsulate other agents to be delivered. They are particularly useful in delivering labile agents given their ability to buffer the pH of their surroundings.Type: GrantFiled: October 2, 2001Date of Patent: February 14, 2006Assignee: Massachusetts Institute of TechnologyInventors: Robert S. Langer, David M. Lynn, David Putnam, Mansoor M. Amiji, Daniel G. Anderson
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Patent number: 6974856Abstract: Disclosed are block copolymers represented by the following general formula (I) wherein AI represents a hydroxyl group or an organic residue derived from an anionic polymerization initiator, R represents a hydrogen atom or an acyl group, NP represents a residue derived from a nucleophilic reagent, m is an integer of 2 to 20,000, and n is an integer of 1 to 20,000.Type: GrantFiled: June 27, 2000Date of Patent: December 13, 2005Assignee: Nanocarrier Co., Ltd.Inventors: Kazunori Kataoka, Yukio Nagasaki, Yoshitsugu Akiyama
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Publication number: 20030078328Abstract: Novel ultraviolet absorbing compounds that are liquid in nature, are extremely low in color (and thus permit use without the concomitant necessity of adding large amounts of other coloring agents to combat such discoloring), and are highly effective in providing protection in wavelength ranges for which previous attempts at low-color ultraviolet absorbers have failed are provided herein. Such compounds provide such excellent, inexpensive, and beneficial protection from ultraviolet exposure within various media, including, but not limited to, clear thermoplastics. The particular compounds are generally polymeric in nature including various chain lengths of polyoxyalkylenes thereon and are liquid in nature to facilitate handling and introduction within the target media. In addition, such ultraviolet absorbers also exhibit extremely low migratory properties thereby providing long-term protective benefits to the target media as well.Type: ApplicationFiled: August 21, 2001Publication date: April 24, 2003Inventors: Mary E. Mason, Xiaodong E. Zhao, Eric B. Stephen
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Publication number: 20020026031Abstract: The present inventors has its objects to provide a polymerization catalyst component, a copper compound which can easily be synthesized and is stable.Type: ApplicationFiled: February 12, 2001Publication date: February 28, 2002Applicant: Sekisui Chemical Co., LTDInventor: Koichi Shibayama
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Patent number: 6350305Abstract: A polymeric furanone magenta colorant is disclosed that contains a furanone magenta chromophore having a furanone adduct, the adduct containing at least one alkoxylated phenyl radical, the chromophore further being derived from at least one aromatic aldehyde having a para-nitrogen and containing electron donating groups selected from the group consisting of alkyls, cycloalkyls, and oligomers or polymers derived from alkyleneoxy or aryleneoxy moieties. The colorant can be utilized in resins, waxes and inks.Type: GrantFiled: October 8, 1999Date of Patent: February 26, 2002Assignee: Xerox CorporationInventors: Clifford R. King, Jeffery H. Banning
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Patent number: 6228977Abstract: The nonlinear optically active copolymers according to the invention are polyadducts of at least one organic di- or polycyanate and a nonlinear optically active compound, i.e. a chromophore. These copolymers have outstanding thermal stability and are suitable for the fabrication of technically useful electro-optical and photonic components with long-term stability.Type: GrantFiled: August 17, 1999Date of Patent: May 8, 2001Assignee: Siemens AktiengesellschaftInventors: Andreas Kanitz, Christian Fricke
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Patent number: 6204354Abstract: The instant invention teaches a method for enabling the formation of a high damping, soft polymer gel. The method includes: reacting a poly(disubstituted ethylene-co-maleimide) polymer with a maleated polyalkylene and an alkyl diamine under substantially dry conditions sufficient to form a polyalkylene grafted poly(disubstituted ethylene-co-maleimide) polymer product; and, dispersing the polyalkylene grafted poly(disubstituted ethylene-co-maleimide) polymer product with an extender oil sufficient to form the gel. The instant invention also contemplates a polymer gel composition, a polymer composition and an article manufactured from the polymer gel composition.Type: GrantFiled: May 6, 1998Date of Patent: March 20, 2001Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Victor J. Foltz, David F. Lawson, Hideo Takeichi, Naruhiko Mashita
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Patent number: RE43612Abstract: Poly(?-amino esters) prepared from the conjugate addition of bis(secondary amines) or primary amines to a bis(acrylate ester) are described. Methods of preparing these polymers from commercially available starting materials are also provided. These tertiary amine-containing polymers are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems. Given the poly(amine) nature of these polymers, they are particularly suited for the delivery of polynucleotides. Nanoparticles containing polymer/polynucleotide complexes have been prepared. The inventive polymers may also be used to encapsulate other agents to be delivered. They are particularly useful in delivering labile agents given their ability to buffer the pH of their surroundings. A system for preparing and screening polymers in parallel using semi-automated robotic fluid delivery systems is also provided.Type: GrantFiled: September 28, 2009Date of Patent: August 28, 2012Assignee: Massachusetts Institute of TechnologyInventors: Daniel Griffith Anderson, David M. Lynn, Akin Akinc, Robert S. Langer