Nitrogen Containing Reactant Patents (Class 521/183)
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Patent number: 11760837Abstract: The present invention provides compositions and methods related to aerogel materials, including polyimide-based aerogels. In particular, aerogel materials optimized to have certain physical and chemical properties such as flexural and compressive strength are provided. In some embodiments, the aerogel materials can be at least partially carbonized.Type: GrantFiled: June 28, 2021Date of Patent: September 19, 2023Assignee: Aspen Aerogels, Inc.Inventors: Nicholas Anthony Zafiropoulos, Shannon Olga White, Jimmy Lee Clark
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Patent number: 11091596Abstract: Provided is a glass fiber-reinforced resin molded article having well-balanced and excellent static and dynamic strength and fluidity. In the glass fiber-reinforced resin molded article, glass fiber included in the glass fiber-reinforced resin molded article includes a flat cross-sectional shape having a minor axis D1 in the range of 3.0 to 10.5 ?m and a major axis D2 in the range of 11.0 to 29.0 ?m, the number average fiber length L (?m) of the glass fiber included in the glass fiber-reinforced resin molded article is in the range of 150 to 475 ?m, the glass fiber content C (wt %) in the glass fiber-reinforced resin molded article is in the range of 40.0 to 75.0 wt %, and the above DI, D2, L, and C satisfy the following formula (1): 260.0<C2×L/(D1×D22)<400.0??(1).Type: GrantFiled: August 30, 2019Date of Patent: August 17, 2021Assignee: Nitto Boseki Co., Ltd.Inventors: Yosuke Nukui, Kimihiro Takatsu
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Patent number: 10975218Abstract: The present disclosure relates to nanoporous micro-spherical polyimide aerogels and a method for preparing the same. The use of the method for preparing polyimide aerogels, according to an embodiment of the present disclosure, enables the preparation of the polyimide aerogels through a low-temperature process, and thus can save energy and time when compared with existing preparing methods, can reduce production costs, and can prepare spherical polyimide aerogels, which are micro-sized uniform particles, having excellent chemical stability, thermal insulation characteristics, and absorption-desorption characteristics while having nano-sized pores. The spherical polyimide aerogels can be applied to various fields, such as an insulator, a drug delivery medium, and a catalyst supporter, due to excellent physical properties thereof.Type: GrantFiled: September 25, 2014Date of Patent: April 13, 2021Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventor: Haksoo Han
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Patent number: 10323134Abstract: A particulate polyamide is provided. The particulate polyamide is porous and includes at least one of polyamide 4 and polyamide 3. In addition, the particulate polyamide has a particle diameter (d50) of from 10 ?m to 1,000 ?m and a particle diameter dispersion degree (Dv/Dn) of not greater than 3.0, wherein Dv represents the volume average particle diameter of the particulate polyamide, and Dn represents the number average particle diameter of the particulate polyamide.Type: GrantFiled: September 17, 2018Date of Patent: June 18, 2019Assignee: Ricoh Company, Ltd.Inventors: Yoko Arai, Atsumi Yamabe, Koichiro Oyama, Yasuo Kamada
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Patent number: 10253150Abstract: The invention relates to a process for producing expandable pelletized material which comprises polylactic acid which comprises the following steps: a) melting and incorporation by mixing of polylactic acid, one or more further polymers, a diepoxide or polyepoxide, and one or more additives, b) incorporation by mixing of an organic blowing agent into the polymer melt by means of a static or dynamic mixer at a temperature of at least 140° C., c) discharging through a die plate with holes, the diameter of which at the exit from the die is at most 1.5 mm, and d) pelletizing the melt comprising blowing agent directly downstream of the die plate, and under water, at a pressure in the range from 1 to 20 bar. The invention further relates to expandable pelletized material which comprises polylactic acid and which is obtainable by said process.Type: GrantFiled: November 11, 2015Date of Patent: April 9, 2019Assignee: BASF SEInventors: Andreas Füssl, Bangaru Dharmapuri Sriramulu Sampath, Maximilian Hofmann, Ingo Bellin, Sameer Nalawade, Klaus Hahn, Andreas Künkel, Robert Loos
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Patent number: 9988534Abstract: A polyimide precursor composition includes a solvent mixture containing an alcohol solvent and a water-insoluble solvent that is at least one selected from the solvent group consisting of water-insoluble ketones and water-insoluble ethers; and a polyimide precursor dissolved in the solvent mixture.Type: GrantFiled: August 22, 2016Date of Patent: June 5, 2018Assignee: FUJI XEROX CO., LTD.Inventors: Tsuyoshi Miyamoto, Tomoya Sasaki, Kana Miyazaki
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Patent number: 9309369Abstract: A method for creating a three dimensional cross-linked polyimide structure includes dissolving a diamine, a dianhydride, and a triamine in a solvent, imidizing a polyamic acid gel by heating the gel, extracting the gel in a second solvent, supercritically drying the gel, and removing the solvent to create a polyimide aerogel.Type: GrantFiled: January 30, 2014Date of Patent: April 12, 2016Assignee: The United States of America, as Represented by the Administrator of the National Aeronautics and Space AdministrationInventor: Mary Ann B. Meador
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Publication number: 20150141544Abstract: Porous cross-linked polyimide networks are provided. The networks comprise an anhydride end-capped polyamic acid oligomer. The oligomer (i) comprises a repeating unit of a dianhydride and a diamine and terminal anhydride groups, (ii) has an average degree of polymerization of 10 to 50, (iii) has been cross-linked via a cross-linking agent, comprising three or more amine groups, at a balanced stoichiometry of the amine groups to the terminal anhydride groups, and (iv) has been chemically imidized to yield the porous cross-linked polyimide network. Also provided are porous cross-linked polyimide aerogels comprising a cross-linked and imidized anhydride end-capped polyamic acid oligomer, wherein the oligomer comprises a repeating unit of a dianhydride and a diamine, and the aerogel has a density of 0.10 to 0.333 g/cm3 and a Young's modulus of 1.7 to 102 MPa. Also provided are thin films comprising aerogels, and methods of making porous cross-linked polyimide networks.Type: ApplicationFiled: February 1, 2013Publication date: May 21, 2015Applicants: U.S. Government as represented by the Administrator of the National Aeronautics and Spac, OHIO AEROSPACE INSTITUTEInventors: OHIO AEROSPACE INSTITUTE, U.S. Government as represented by the Administrator of the National Aeronautics and Spa
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Patent number: 9006302Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.Type: GrantFiled: September 7, 2011Date of Patent: April 14, 2015Assignee: 3M Innovative Properties CompanyInventors: Stephen E. Amos, Robert W. Hunter, Ronald J. Israelson, Towako Takeishi, Mark J. Williams, Takujiro Yamabe
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Patent number: 8916619Abstract: A porosity is freely controlled in preparation of a porous polymer film by a phase separation method. A solvent absorption sheet is used for a solvent in a polymer solution so that the coating film of the polymer solution may be covered with the sheet. After that, the solvent in the film is selectively removed. Then, the resultant is immersed in a poor solvent. Thus, a porous polymer film can be produced.Type: GrantFiled: June 16, 2010Date of Patent: December 23, 2014Assignee: Canon Kabushiki KaishaInventors: Naotake Sato, Toshihiro Kikuchi, Yuichi Hashimoto, Yohei Miyauchi
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Publication number: 20140364529Abstract: Sequential and simultaneous methods of making a multi-metalized nanocomposite. A method includes providing a porous matrix, dissolving at least a first metal or metalloid precursor and a second metal or metalloid precursor in a supercritical carbon dioxide (CO2) fluid, wherein the first and second metal or metalloid precursors are different, infusing the supercritical CO2 fluid with the dissolved first and second metal or metalloid precursors into the porous matrix, lowering the pressure to trap the infused first and second metal or metalloid precursors in the porous matrix and reducing the first and second metal or metalloid precursors at an elevated temperature to form first and second metal or metalloid nanoparticles in the porous matrix.Type: ApplicationFiled: April 3, 2014Publication date: December 11, 2014Inventors: Cheol Park, Jin Ho Kang, Godfrey Sauti, Luke J. Gibbons, Sharon E. Lowther, Robert G. Bryant
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Publication number: 20140333184Abstract: Piezoelectric materials based on nanoporous polymer foams are provided. Also provided are nanogenerators incorporating the piezoelectric materials, piezoelectric energy harvesters incorporating the nanogenerators and methods of making and using the same. The piezoelectric materials comprise a unitary nanoporous matrix composed of a piezoelectrically active organic polymer, in which the pores are interconnected and have nanoscale diameters.Type: ApplicationFiled: May 10, 2013Publication date: November 13, 2014Applicant: Wisconsin Alumni Research FoundationInventor: Wisconsin Alumni Research Foundation
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Publication number: 20140287321Abstract: A method for making a flat polymer foam having a core layer of nano-sized open, interconnected cells that includes saturating a solid-state polymer with a supercritical fluid, allowing the gas to desorb for at least 35 minutes, and then heating the gas-saturated solid polymer for at least 3 minutes while constraining the foam in the thickness dimension. Any skin layer formed on the exterior may be removed via polishing, thus creating a foam with an open structure from side to side. The foam can be used as a battery separator.Type: ApplicationFiled: March 14, 2014Publication date: September 25, 2014Applicant: University of Washington through its Center for CommercializationInventors: Vipin Kumar, Brian Aher, Krishna Nadella, Michael Waggoner
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Publication number: 20140275309Abstract: An article of manufacture formed from the reaction product of at least one plant based polyol and at least one isocyanate free monomer, comprising a foam structure having wide commercial applicability.Type: ApplicationFiled: March 15, 2013Publication date: September 18, 2014Applicant: RANDALL SURGICAL CORPORATION D/B/A ECOSURGInventor: RANDAL SURGICAL CORPORATION D/B/A ECOSURG
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Publication number: 20140255642Abstract: The present invention provides articles and methods related to insulation panels made from aerogels, and specifically polyimide based aerogels. Such insulation panels have a wide variety of applications, including specifically in aerospace applications.Type: ApplicationFiled: March 10, 2014Publication date: September 11, 2014Applicant: Aspen Aerogels, Inc.Inventors: Shannon Olga White, Nicholas Anthony Zafiropoulos, Jimmy Lee Clark
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Patent number: 8822555Abstract: There is provided a novel polyamide particles having an approximately spherical outer shape, which are spongy particles having through-holes in an outer surface part and closed voids in an inside part. The polyamide particles can be produced by dissolving a polyamide in a cyclic amide with heating to obtain a homogeneous solution and then cooling the solution.Type: GrantFiled: March 2, 2010Date of Patent: September 2, 2014Assignee: Ube Industries, Ltd.Inventors: Koji Kaiso, Masanori Abe, Tsunemi Sugimoto
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Publication number: 20140235132Abstract: Modified lignin having covalently attached phosphorous containing groups and methods for preparing such compounds are described herein. The modified lignin described herein provides a renewable source of flame retardant material.Type: ApplicationFiled: April 24, 2014Publication date: August 21, 2014Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventor: Glen Leon BRIZIUS
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Patent number: 8765830Abstract: Disclosed is a polyimide foam made of an aromatic polyimide composed of a tetracarboxylic acid component, which is composed of 0 to 90% by mole of a 3,3?,4,4?-biphenyltetracarboxylic acid component and 100 to 10% by mole of a 3,3?,4,4?-benzophenone tetracarboxylic acid component and/or a 2,3,3?,4?-biphenyltetracarboxylic acid component, and a diamine component, which is composed of 50 to 97% by mole of m-phenylenediamine and 50 to 3% by mole of 4,4?-methylenedianiline. The polyimide foam can be produced easily, has uniform and fine cells, and has the mechanical properties required for practical use as a foam, such as flexibility that prevents the foam from cracking easily even when deformed and excellent cushioning properties, as well as heat resistance that can resist use at high temperatures.Type: GrantFiled: November 12, 2009Date of Patent: July 1, 2014Assignee: UBE Industries, Ltd.Inventors: Yukio Kaneko, Hiroaki Yamaguchi, Masafumi Kohda
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Publication number: 20140142207Abstract: Compositions and/or structures of degradable shape memory polymers (SMPs) ranging in form from neat/unfoamed to ultra low density materials of down to 0.005 g/cc density. These materials show controllable degradation rate, actuation temperature and breadth of transitions along with high modulus and excellent shape memory behavior. A method of making extremely low density foams (up to 0.005 g/cc) via use of combined chemical and physical blowing agents, where the physical blowing agents may be a single compound or mixtures of two or more compounds, and other related methods, including of using multiple co-blowing agents of successively higher boiling points in order to achieve a large range of densities for a fixed net chemical composition. Methods of optimization of the physical properties of the foams such as porosity, cell size and distribution, cell openness etc. of these materials, to further expand their uses and improve their performance.Type: ApplicationFiled: March 12, 2013Publication date: May 22, 2014Inventors: Lawrence Livermore National Security, LLC, The Texas A&M University System
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Patent number: 8722751Abstract: The invention relates to compositions for producing polymethacrylimide foams having reduced pore size. The inventive method allows production of a microporous foam with an especially homogeneous pore size distribution without having to use insoluble nucleation agents.Type: GrantFiled: July 23, 2004Date of Patent: May 13, 2014Assignee: Evonik Rohm GmbHInventors: Jonas Scherble, Werner Geyer, Hermann Seibert, Leonhard Maier, Torsten Jahn, Thomas Barthel
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Patent number: 8715783Abstract: The present invention relates to a porous ABPBI (phosphoric acid doped poly(2,5-benzimidazole)) membrane and process of preparing the same. A stable porous ABPBI (Phosphoric Acid Doped Poly(2,5-benzimidazole)) membrane stable to acids, bases, solvents and autoclaving is disclosed. The membrane finds use for separation of solutes in solution in acids, bases and solvents.Type: GrantFiled: February 22, 2011Date of Patent: May 6, 2014Assignee: Council of Scientific and Industrial Research (CISR)Inventors: Ulhas Kharul, Harshada Lohokare
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Patent number: 8691882Abstract: Provided are an organic-inorganic hybrid scaffold with surface-immobilized nano-hydroxyapatite, and a method for the fabrication thereof. The scaffold is fabricated by reacting an acid group present on a surface of nano-hydroxyapatite with a primary amine present on a surface of a polymer support in the presence of EDC (1-ethyl-3-dimethylaminopropyl carbodiimide) to immobilize nano-hydroxyapatite onto the surface of the polymer support. The surface of nano-hydroxyapatite is previously grafted with poly(ethylene glycol methacrylate phosphate) (PolyEGMP) having phosphonic acid functionality or with a polymer having carboxylic acid functionality.Type: GrantFiled: December 10, 2009Date of Patent: April 8, 2014Assignee: Korea Institute of Ceramic Engineering & TechnologyInventors: Sang Cheon Lee, Jeong Ho Chang, Jin Hyung Lee, Kyung Ja Kim, Sung Eun Kim, Ho Chan Hwang, Ke-Won Kang, Seog-Jin Seo, Jin-Young Kim
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Publication number: 20140073714Abstract: A therapeutic device to release a therapeutic agent comprises a porous structure coupled to a container comprising a reservoir. The reservoir comprises a volume sized to release therapeutic amounts of the therapeutic agent for an extended time when coupled to the porous structure and implanted in the patient. The porous structure may comprise a first side coupled to the reservoir and a second side to couple to the patient to release the therapeutic agent. A plurality of interconnecting channels can extend from the first side to the second side so as to connect a first a plurality of openings on the first side with a second plurality of openings on the second side.Type: ApplicationFiled: November 14, 2013Publication date: March 13, 2014Applicant: FORSIGHT VISION4, INC.Inventors: Cary J. Reich, Michael Barrett, Randolph E. Campbell, Kathleen C. Farinas
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Patent number: 8637583Abstract: A process for the manufacture of a fiber or foil comprising at least one optionally functionalized polymer with a high Tg selected from the group consisting of poly(aryl ether sulfone) (PAES), poly(aryl ether ketone) (PAEK) and aromatic polyimide, comprising the steps of (aa) providing a solution comprising at least 45 wt. % of the polymer, and at least 20 wt. %, of at least one halogen-free organic solvent (S1) for the polymer, both wt % based upon the weight of the solution; (bb) pushing the solution through a nozzle; and (cc) introducing the solution into a coagulation bath comprising: (cc1) at least one liquid (L1) in which the polymer is insoluble, and optionally (cc2) at least one organic solvent (S2) for the polymer, identical to or different from the organic solvent (S1), to form a fiber or foil. A fiber or foil obtained by this process as well as to fibers or foils with specific porosity features and/or mechanical properties.Type: GrantFiled: October 16, 2009Date of Patent: January 28, 2014Assignee: Solvay Advanced Polymers, L.L.C.Inventors: Frank Hermanutz, Mark G. Reichmann
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Patent number: 8604091Abstract: One- and two-part spray non-isocyanate foams that include an amide-based oligomer containing pendant carboxylic acid and a polyfunctional aziridine crosslinking agent is provided. The amide oligomer typically contains urea links, urethane links or both groups. Additionally, the foams may include one or more plasticizer, a non-functionalized resin, a surfactant, and/or a thickening agent or rheology modifier. The amide oligomer does not contain any isocyanate groups, and, as a result, there are no free isocyanate moieties generated during formation of the foam that may be potentially hazardous to workers installing the foam. The presence of the urethane segments on the oligomer permits for the generation of a polyurethane foam without the drawbacks of conventional polyurethane foams. The foams may be used to fill cavities, cracks, gaps and crevices, such as around windows and doors, and may also be used in flash and batt systems.Type: GrantFiled: August 30, 2011Date of Patent: December 10, 2013Assignee: Owens Corning Intellectual Capital, LLCInventor: Fatemeh Nassreen Olang
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Solvent-resistant asymmetric hollow fiber gas separation membrane, and method for production thereof
Patent number: 8580012Abstract: An asymmetric hollow fiber gas separation membrane obtained by subjecting an asymmetric hollow fiber polyimide membrane to a heat treatment having a maximum temperature of from 350 to 450° C., wherein the asymmetric hollow fiber polyimide membrane is formed with a polyimide essentially having a repeating unit represented by a general formula (1); is excellent in a solvent resistance and a thermal stability, and as well has such a mechanical strength that a tensile elongation at break is not less than 10% as a hollow fiber membrane.Type: GrantFiled: January 19, 2009Date of Patent: November 12, 2013Assignee: Ube Industries, Ltd.Inventors: Harutoshi Hoshino, Tomonori Kanougi, Toshimune Yoshinaga, Yoji Kase, Kenji Fukunaga -
Patent number: 8563622Abstract: The present application relates to novel monodisperse, gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) as functional group, where R1 is an optionally substituted radical from the group consisting of picolyl, methylquinoline and methylpiperidine, R2 is a radical —(CH2)q—COOR3, R3 is a radical from the group consisting of H, Na and K, m is an integer from 1 to 4, n and p are each, independently of one another, a number in the range from 0.1 to 1.9 and the sum of n and p is 2, q is an integer from 1 to 5 and M is the polymer matrix, a process for preparing them and their uses, in particular the use in hydrometallurgy and electroplating.Type: GrantFiled: February 27, 2009Date of Patent: October 22, 2013Assignee: LANXESS Deutschland GmbHInventors: Michael Schelhaas, Reinhold Klipper, Duilio Rossoni
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Patent number: 8562922Abstract: The present application relates to novel gel-type or macroporous picolylamine resins which are based on at least one monovinylaromatic compound and at least one polyvinylaromatic compound and/or a (meth)acrylic compound and contain tertiary nitrogen atoms in structures of the general formula (I) as functional group, where R1 is an optionally substituted radical from the group consisting of picolyl, methylquinoline and methylpiperidine, R2 is —CH2—S—CH2COOR3 or —CH2—S—C1-C4-alkyl or —CH2—S—CH2CH(NH2)COOR3 or —CH2—S—CH2—CH(OH)—CH2(OH) or or derivatives thereof or —C?S(NH2), R3 is a radical from the group consisting of H, Na and K, m is an integer from 1 to 4, n and p are each, independently of one another, a number in the range from 0.1 to 1.9 and the sum of n and p is 2 and M is the polymer matrix, a process for preparing them and their uses, in particular the use in hydrometallurgy and electroplating.Type: GrantFiled: February 27, 2009Date of Patent: October 22, 2013Assignee: LANXESS Deutschland GmbHInventors: Reinhold Klipper, Michael Schelhaas, Duilio Rossoni
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Publication number: 20130267623Abstract: Disclosed is a thermoplastic resin foam which is obtained by subjecting a thermoplastic resin composition containing a thermoplastic elastomer and an active-energy-ray-curable resin to foam molding to give a foamed structure, and irradiating the foamed structure with an active energy ray to allow the active-energy-ray-curable resin to form a cross-linked structure in the foamed structure. Also disclosed is a thermoplastic resin foam which is obtained by subjecting a thermoplastic resin composition containing a thermoplastic elastomer, an active-energy-ray-curable resin, and a thermal cross-linking agent to foam molding to give a foamed structure, irradiating the foamed structure with an active energy ray to allow the active-energy-ray-curable resin to form a cross-linked structure in the foamed structure, and heating the resulting foamed structure bearing the cross-linked structure to thereby allow the thermal cross-linking agent to form another cross-linked structure in the foamed structure.Type: ApplicationFiled: June 3, 2013Publication date: October 10, 2013Inventors: Hironori Yasuda, Takayuki Yamamoto, Mitsuhiro Kanada, Kaori Ozawa
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Patent number: 8530532Abstract: The present invention relates to a hydrogel contact lens having improved wettability, and particularly to a hydrogel contact lens of a complex membrane having an IPN (interpenetrating polymer network) intra structure, which is prepared by crosslinking composition for a contact lens comprising, as a main ingredient, an acryl monomer and an oligosaccharide and optionally a silicone compound. Due to the presence of an oligosaccharide in a contact lens herein, tensile strength and wettability can be maximized to provide a superior wearing feeling and maintain wettability even after a long-term storage in a care solution such as a washing solution, a storage solution and a protein-removing solution.Type: GrantFiled: April 27, 2009Date of Patent: September 10, 2013Assignees: Korea Research Institute of Chemical Technology, Interojo Inc.Inventors: Tae Sun Chang, Hyung Rok Kim, Kyoung Hee Yun
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Publication number: 20130197119Abstract: An article comprising: a monolithic, single layer, rigid thermoplastic interior component for an aircraft, wherein the thermoplastic interior component has a microcellular foam structure, wherein the thermoplastic interior component has an average two minute heat release of less than or equal to 65 kw-min/m2 when tested in accordance with the requirements of FAR 25.853 (d), Appendix F, Part IV through Amendment 25-116; and wherein the thermoplastic interior component has an average peak heat release of less than or equal to 65 kw/m2 when tested in accordance with the requirements of FAR 25.853 (d), Appendix F, Part IV through Amendment 25-116.Type: ApplicationFiled: August 6, 2012Publication date: August 1, 2013Applicant: VAUPELL HOLDINGS, INC.Inventors: Sydney Robert STAPLETON, Michael D. HAMM, James David SKLENKA
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Publication number: 20130165542Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.Type: ApplicationFiled: September 7, 2011Publication date: June 27, 2013Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Stephen E. Amos, Robert W. Hunter, Ronald J. Israelson, Towako Takeishi, Mark J. Williams, Takujiro Yamabe
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Patent number: 8436060Abstract: An organic aerogel includes a polymer prepared from a substituted or unsubstituted maleimide compound and a compound having at least two vinyl groups. A composition for the organic aerogel includes a substituted or unsubstituted maleimide compound and a compound having at least two vinyl groups.Type: GrantFiled: December 30, 2010Date of Patent: May 7, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Kwang-Hee Kim, Myung-Dong Cho, Sang-Ho Park, Sung-Woo Hwang
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Publication number: 20130065979Abstract: A matrix material composed of polymer, preferably of thermoplastic polymer, or coating material. The matrix material includes 0.01 to 50% by weight of an additive for foaming of the matrix material which can be triggered by irradiation with laser light or IR light. The additive includes at least the following constituents: a) at least one absorber material which, embedded or dissolved in the matrix material, absorbs laser light or IR light and brings about local heating in the matrix material at the site of irradiation with laser light or IR light, and b) at least one blowing agent which, when heated due to the irradiation with laser light or IR light to temperatures above 50° C., forms a gas which foams the matrix material by decomposition, chemical conversion or reaction.Type: ApplicationFiled: March 22, 2011Publication date: March 14, 2013Applicant: Chemische Fabrik Budenheim KGInventors: David Kümmet, Rüdiger Wissemborski, Hendrik Wermter, Rainer Schnee
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Publication number: 20130059939Abstract: Provided is a method for producing glass-fiber-reinforced molded resin foam which retains intact material properties inherent in glass-fiber-reinforced molded resins, has a finely and evenly foamed state, and has excellent mechanical strength, and which can be reduced in weight. The method for producing glass-fiber-reinforced molded resin foam comprises subjecting a resin, flat glass fibers, and a blowing agent to injection molding.Type: ApplicationFiled: May 9, 2011Publication date: March 7, 2013Inventor: Noriyoshi Sato
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Patent number: 8329770Abstract: Silicone foams having good foam structure and rapid cure are produced from foamable mixtures containing a physical blowing agent and an organically modified organopolysiloxane containing at least one urea or urethane group and an alkoxy(alkyl)siloxy unit.Type: GrantFiled: August 19, 2008Date of Patent: December 11, 2012Assignee: Wacker Chemie AGInventors: Wolfgang Ziche, Volker Stanjek, Richard Weidner
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Publication number: 20120255909Abstract: Improved methods for reducing boron concentration in seawater or brackish water, while simultaneously maintaining or improving the salt rejection of membrane and flow performance of polyamide reverse osmosis (RO) membranes include contacting the water with a composite membrane comprising moieties derived from an aromatic sulfonyl halide, a heteroaromatic sulfonyl halide, a sulfinyl halide; a sulfenyl halide; a sulfuryl halide; a phosphoryl halide; a phosphonyl halide; a phosphinyl halide; a thiophosphoryl halide; a thiophosphonyl halide, an isocyanate, a urea, a cyanate, an aromatic carbonyl halide, an epoxide or a mixture thereof.Type: ApplicationFiled: June 20, 2012Publication date: October 11, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Hua Wang, David Allen Olson, Jiang Ji, Michael Todd Luttrell, Gary William Yeager, Joseph Anthony Suriano, Lawrence Charles Costa
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Publication number: 20120248027Abstract: A composite semipermeable membrane comprising a porous support membrane on which a separating functional polyamide layer resulting from the polycondensation reaction of polyfunctional aromatic amines with polyfunctional acid halides is formed, wherein the separating functional polyamide layer has carboxy groups, amino groups, phenolic hydroxyl groups, and azo groups, wherein XA, the ratio of the amino groups (molar equivalent of the amino groups/(molar equivalent of the azo groups+molar equivalent of the phenolic hydroxyl groups+molar equivalent of the amino groups)) on a feed water contact surface of the separating functional polyamide layer (an A surface), is in the range 0.5 or less, and XB, the ratio of the amino groups (molar equivalent of the amino groups/(molar equivalent of the azo groups+molar equivalent of the phenolic hydroxyl groups+molar equivalent of the amino groups)) on a permeate-side surface of the separating functional polyamide layer (a B surface), i.e.Type: ApplicationFiled: December 16, 2010Publication date: October 4, 2012Applicant: TORAY INDUSTRIES, INC.Inventors: Takao Sasaki, Tomoko Mitsuhata, Kentaro Takagi, Katsufumi Oto
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Publication number: 20120241996Abstract: A method of making a crosslinked polyimide membrane is described. A monoesterified membrane is formed from a monoesterified polyimide polymer. The monoesterified membrane is subjected to transesterification conditions to form a crosslinked membrane. The monoesterified membrane is incorporated with an organic titanate catalyst before or after formation of the monoesterified membrane. A crosslinked polyimide membrane made using the aforementioned method and a method of using the membrane to separate fluids in a fluid mixture, such as methane and carbon dioxide, are also disclosed.Type: ApplicationFiled: June 6, 2012Publication date: September 27, 2012Applicant: Chevron U.S.A. Inc.Inventors: John D. Wind, Stephen J. Miller, Oluwasijibomi O. Okeowo
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Publication number: 20120241115Abstract: Disclosed are polyimide short fibers having an extremely high heat resistance, suitable for non-woven fabrics and paper, and having many branches. Specifically, disclosed are polyimide short fibers having many branches, which are produced by beating and loosening a specific foamed polyimide material. The foamed material preferably comprises a polyimide produced using 2, 3, 3?, 4?-biphenyltetracarboxylic acid as an aromatic tetracarboxylic acid component, preferably has a glass transition temperature of 300° C. or higher, and preferably has an expansion ratio of 20 times or more.Type: ApplicationFiled: December 16, 2010Publication date: September 27, 2012Applicant: UBE INDUSTRIES, LTD.Inventors: Hideki Ozawa, Fumio Aoki
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Publication number: 20120174811Abstract: A barrier for reduction of a shock wave. The barrier has a spatially graded structure in which a density of the structure varies across a thickness thereof. The graded structure includes a polymer having hollow containers dispersed in the polymer to provide the density of the graded structure. The barrier can be included in at least one of 1) an explosive device, 2) a war head, 3) a demolition charge, and 4) an explosive containment. These devices have an exterior housing and at least one partitioned segment inside the housing with the partitioned segment including the barrier for reduction of the shock wave. Partitioned sections of the explosive devices are selectively or in total detonated.Type: ApplicationFiled: August 23, 2011Publication date: July 12, 2012Applicant: Corvid TechnologiesInventors: Sean Kevin Treadway, John R. Cogar, Andrew Nicholas Lloyd
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Publication number: 20120158127Abstract: Absorbable polyurethanes, polyamides and polyester urethanes prepared from at least one compound selected from: or the corresponding diamines or diisocyanates thereof, wherein each X independently represents —CH2COO—, —CH(CH3)COO—, —CH2CH2OCH2COO—, —CH2CH2CH2CH2CH2COO—, —(CH2)yCOO— where y is 2 to 4 or 6 to 24, or —(CH2CH2O)z?CH2COO— where z? is 2 to 24; each Y represents —COCH2O—, —COCH(CH3)O—, —COCH2OCH2CH2O—, —COCH2CH2CH2CH2CH2O—, —CO(CH2)mO— where m is 2 to 4 or 6 to 24, or —COCH2O(CH2CH2O)n— where n is 2 to 24; R? is hydrogen, benzyl or straight-chained or branched alkyl; p is 1 to 4; and Rn represents one or more members selected from H, alkoxy, benzyloxy, aldehyde, halogen, carboxylic acid and —NO2, which is attached directly to an aromatic ring or attached through an aliphatic chain. Absorbable polymers prepared from these compounds are useful for drug delivery, tissue engineering, tissue adhesives, adhesion prevention and other implantable medical devices.Type: ApplicationFiled: February 22, 2012Publication date: June 21, 2012Applicant: BEZWADA BIOMEDICAL, LLCInventor: Rao S. Bezwada
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Patent number: 8193255Abstract: Porous infusible polymer (IP) parts are made by incorporating 0.2 to 10 volume percent organic fibers, preferably with short lengths, into the particulate IP, consolidating the mixture under pressure and optionally heating, and then “burning off” the fibers. After the fibers are burned off the resulting part has porosity in which the pores are elongated, usually retaining the shape of the organic fibers. When these parts are exposed to moisture (which they usually absorb) and then suddenly heated they tend not to blister from vaporization of the water. This makes them useful as parts for aircraft (jet) and other engines and other applications where sudden temperature increase may occur.Type: GrantFiled: December 21, 2010Date of Patent: June 5, 2012Assignee: E. I. du Pont de Nemours and CompanyInventor: Thomas P. Gannett
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Publication number: 20120136070Abstract: The present disclosure relates to the preparation of ketal compounds from anhydropentitols and oxocarboxylates; derivatives, homopolymers, and copolymers thereof; and various compositions, formulations, and articles derived therefrom.Type: ApplicationFiled: January 6, 2012Publication date: May 31, 2012Applicant: XL TERRA, INC.Inventors: Sergey Selifonov, Feng Jing, Ning Zhou
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Publication number: 20120119402Abstract: The present invention relates to a composite component comprising an unfoamed polymer phase and a foamed phase, and to a process for producing the same.Type: ApplicationFiled: November 9, 2011Publication date: May 17, 2012Applicant: BASF SEInventors: Philippe DESBOIS, Olaf Kriha, Bangaru Sampath, Holger Ruckdäschel, Dietrich Scherzer, Freddy Gruber, Klaus Hahn
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Publication number: 20120108694Abstract: The invention relates to a method for synthesising a block copolymer alloy including at least one rigid polyamide block PA, including the steps of: a) producing said block copolymer; b) adding, during step a) and to at least a portion of said block copolymer, 0.1 to 30 wt % of at least one organic salt in the molten state relative to the total weight of the alloy, so that the alloy thus obtained has improved antistatic properties and identical mechanical properties when compared to the same polymer produced without adding an organic salt. The invention also relates to a block copolymer alloy having improved antistatic properties and obtained by said method, to the use thereof in a polymer matrix, and to a composition containing same.Type: ApplicationFiled: February 2, 2010Publication date: May 3, 2012Applicant: ARKEMA FRANCEInventors: Frederic Malet, Eric Gamache, Perrine Babin, Benoit Andre, Michael Werth
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Publication number: 20120088858Abstract: Polymer composite roofing materials are provided which contain resin, and about 20-75 wt. % fillers and additives, in which the fillers contain at least one bulk filler for reducing the amount of resin needed to make the roofing material, and at least one aesthetically functional filler for providing the roofing material with an aesthetic appearance. The bulk filler and the aesthetically functional filler of this embodiment are non-toxic, resistant to microbial attack, and have a Mohs hardness of less than about 5.Type: ApplicationFiled: December 20, 2011Publication date: April 12, 2012Inventors: Olivier Guiselin, Husnu Kalkanoglu, Christelle Pousse Le Goff, Randall M. Elinski, Gregory P. Quist, Paul Ruede, Richard A. Hills
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Publication number: 20120088855Abstract: Low density, buoyant materials, in particular hydrophobic aerogels, may be used to absorb hydrophobic liquids. The materials are adapted to float on aqueous solutions and can absorb oils or other hydrophobic liquids from the surface of the solution without absorbing appreciable amounts of the aqueous solution. Methods for creating and using the materials are disclosed.Type: ApplicationFiled: June 11, 2010Publication date: April 12, 2012Applicant: CASE WESTERN RESERVE UNIVERSITYInventors: Matthew D. Gawryla, David A. Schiraldi
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Publication number: 20120059076Abstract: One- and two-part spray non-isocyanate foams that include an amide-based oligomer containing pendant carboxylic acid and a polyfunctional aziridine crosslinking agent is provided. The amide oligomer typically contains urea links, urethane links or both groups. Additionally, the foams may include one or more plasticizer, a non-functionalized resin, a surfactant, and/or a thickening agent or rheology modifier. The amide oligomer does not contain any isocyanate groups, and, as a result, there are no free isocyanate moieties generated during formation of the foam that may be potentially hazardous to workers installing the foam. The presence of the urethane segments on the oligomer permits for the generation of a polyurethane foam without the drawbacks of conventional polyurethane foams. The foams may be used to fill cavities, cracks, gaps and crevices, such as around windows and doors, and may also be used in flash and batt systems.Type: ApplicationFiled: August 30, 2011Publication date: March 8, 2012Applicant: OWENS CORNING INTELLECTUAL CAPITAL, LLCInventor: Fatemeh Nassreen Olang
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Publication number: 20120029104Abstract: Single-phase fluid compositions, comprising at least two isocyanate-reactive polyol components which are inherently incompatible with each other and as a mediator additive at least one copolymer compatibilizer additive effectuating compatibility between the originally incompatible polyol components, said copolymer comprising structural units having at least one nitrogen group which can be protonized.Type: ApplicationFiled: September 1, 2011Publication date: February 2, 2012Applicant: BYK-CHEMIE GMBHInventors: René Nagelsdiek, Bernd Göbelt, Dorothée Greefrath, Christian Biecker