Lactam-containing Reactant Patents (Class 528/323)
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Patent number: 12012491Abstract: To provide a method for producing a polyamide resin film by using a polyamide resin obtained through polymerization of a regenerated monomer used as a recycled material. Provided is a method for producing a polyamide resin film, including: (1) a step of producing a monomer from a raw material (A) for depolymerization, (2) a step of producing a polyamide resin (B) through polymerization using a raw material containing the monomer. (3) a step of refining the polyamide resin (B), and (4) a step of producing an unstretched film using a starting material containing the refined polyamide resin (B), and stretching the unstretched film.Type: GrantFiled: January 22, 2021Date of Patent: June 18, 2024Assignee: UNITIKA LTD.Inventors: Akiko Kurosawa, Atsuko Noda
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Patent number: 11991894Abstract: The present disclosure provides a flexible display device and a preparation method thereof. The flexible display device has different base materials and adhesives for the back supporting film at the bonding region and the non-bonding region, so that it can satisfy the requirements for AOI and bending resistance respectively, and can be advantageous for a patterning step for base material including subtractive manufacturing.Type: GrantFiled: December 29, 2020Date of Patent: May 21, 2024Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Penghao Gu, Chunyan Xie, Lingzhi Qian
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Patent number: 11923500Abstract: A packaging material for batteries including a laminate in which at least a base material layer, a metal layer, and a sealant layer are laminated in order. The battery packaging material satisfies the relationships of: (A1?A2)?60 N/15 mm; and (B1?B2)?50 N/15 mm. A1 is a stress in elongation by 10% in the MD direction and B1 is a stress in elongation by 10% in the TD direction in the laminate, and A2 is a stress in elongation by 10% in the MD direction and B2 is a stress in elongation by 10% in the TD direction in the base material layer.Type: GrantFiled: May 8, 2023Date of Patent: March 5, 2024Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Atsuko Takahagi, Rikiya Yamashita, Daisuke Yasuda
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Patent number: 11634624Abstract: The anionic cocogem surfactant of formula (I) for an oil production process of increased efficiency wherein each R1 and R2 is independently selected from hydrogen or C1-C18 straight or branched alkyl optionally substituted by OH; each R3 is independently selected from hydrogen; C1-C25 straight or branched alkyl or alkenyl optionally comprising inter-chain amido-group; aromatic group optionally substituted by C1-C25, preferably C5-C20, more preferably C5-C15 straight or branched alkyl, preferably selected from phenyl and diphenylether; or C10-C20 straight or branched alkenyl, alkadienyl or alkatrienyl; Z is C1-C18 straight or branched alkylene optionally substituted by one or two C1-C6 alkyl or preferably C3-C6 cycloalkyl, optionally comprising (EO)n and/or (PO)m groups, wherein EO is ethylene-oxide i.e. —CH2CH2O—, and PO is propylene-oxide, i.e.Type: GrantFiled: March 28, 2019Date of Patent: April 25, 2023Assignee: MOL MAGYAR OLAJ- ÉS GÁZIPARI NYILVÁNOSAN MŰKÖDŐ RÉSZVÉNYTÁRSASÁGInventors: József Dudás, Sándor Puskás, Árpád Vágó, László Bartha, Roland Nagy, Mária Törö, István Lakatos
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Selective laser sintering using functional inclusions dispersed in the matrix material being created
Patent number: 11534832Abstract: A selective laser sintering system includes a leveling roller having a first orientation. The leveling roller is configured to roll over a first feed bin. The build chamber is configured to receive, from the first feed bin and by the leveling roller, a transfer of a portion of matrix material. The selective laser sintering system is configured to transfer the portion to the build chamber in a number of orientations.Type: GrantFiled: September 9, 2020Date of Patent: December 27, 2022Assignee: The Regents of the University of CaliforniaInventors: Lawrence Kulinsky, Edward Tackett, Benjamin Dolan -
Patent number: 11512197Abstract: The purpose of the present invention is to establish a more precise method for evaluating long-run moldability and, based on this method, improve long-run moldability of a resin composition containing an EVOH-based resin and a nylon 6-based polyamide. Provided is a resin composition having improved long-run moldability and containing an EVOH-based resin and a nylon 6-based polyamide, wherein the amount of ?-caprolactam is 200 ppm or less. When the resin composition comprises an EVOH-based resin and a nylon 6-based polyamide, contacting the resin composition with water can reduce the amount of ?-caprolactam.Type: GrantFiled: June 11, 2018Date of Patent: November 29, 2022Assignee: MITSUBISHI CHEMICAL CORPORATIONInventor: Kota Inoue
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Patent number: 11384214Abstract: The invention relates to a noncrosslinked block copolymer foam, comprising at least one rigid block and at least one flexible block, in which the copolymer includes at least one carboxylic acid chain end blocked with a polycarbodiimide. The invention also relates to a process for manufacturing this foam and to articles manufactured therefrom.Type: GrantFiled: November 16, 2018Date of Patent: July 12, 2022Assignee: ARKEMA FRANCEInventors: Clio Cocquet, Quentin P. Pineau, Helena Cheminet, Francois Fernagut
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Patent number: 11186684Abstract: The present invention relates to a process for continuously producing a polyamide powder (PP) comprising at least one semicrystalline polyamide (P). The present invention further relates to the polyamide powder (PP) thus obtainable and to the use of the polyamide powder (PP) as sinter powder (SP), and also to a process for producing a shaped body by exposing a layer of a polyamide powder (PP).Type: GrantFiled: July 10, 2019Date of Patent: November 30, 2021Assignee: BASF SEInventors: Achim Stammer, Simon Gramlich, Andreas Bauder
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Patent number: 10913205Abstract: A material set can include a powder bed material, including a polymer powder and a fusing agent. The polymer powder can have a particle size distribution having the following profile: D10 of 30 ?m or more, D50 from 50 ?m to 65 ?m, and D90 of 100?m or less. Other parameters can include a melting point from 100° C. to 300° C., a processing window temperature of 20° C. or more, an energy density absorption of 20% or less, and a melt flow index from 10 cc to 80 cc at 10 minutes. The fusing agent can include an energy absorber capable of absorbing electromagnetic radiation to produce heat.Type: GrantFiled: December 8, 2016Date of Patent: February 9, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Yi Feng, Jesiska Tandy, Rachael Donovan
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Patent number: 10870130Abstract: A process for preparing a feedstock having polyaryletherketone particles for using in selective laser sintering. The process includes the steps of determining a particle size distribution of the polyaryletherketone particles in the feedstock based on a number of particles corresponding to each of a plurality of particle size ranges to obtain a particle size distribution determination. The process further includes the step of reducing the number of particles in the feedstock corresponding to one or more size ranges having a depressed melting temperature relative to the average melting temperature of the polyaryletherketone particles in the feedstock based on the particle size distribution determination.Type: GrantFiled: June 16, 2015Date of Patent: December 22, 2020Assignee: Hexcel CorporationInventors: Scott DeFelice, Anthony DeCarmine
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Patent number: 10870232Abstract: Powder compositions and articles and methods of forming articles from powder compositions are provided. In one embodiment the powder compositions include at least one polyester polymer powder and an amount of reinforcing particles having an aspect ratio of preferably at least about 5:1. In another embodiment the powder compositions include at least one medium-high melting temperature, aromatic and crystalline polyester polymer powder. In a preferred embodiment, the powder composition is capable of being formed, via a laser sintering process, into a three-dimensional article that exhibits one or more desirable mechanical properties in an elevated temperature environment.Type: GrantFiled: November 6, 2018Date of Patent: December 22, 2020Assignee: 3D SYSTEMS, INC.Inventor: Raffaele Martinoni
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Patent number: 10854855Abstract: A packaging material for batteries including a laminate in which at least a base material layer, a metal layer, and a sealant layer are laminated in order, the sum (A+B) of a value A of stress when 40% extended/stress when 10% extended in the direction MD and a value B of stress when 40% extended/stress when 10% extended in the direction TD of the laminate satisfying the relationship A+B?2.50.Type: GrantFiled: August 24, 2015Date of Patent: December 1, 2020Assignee: DAI NIPPON PRINTING CO., LTD.Inventors: Atsuko Takahagi, Rikiya Yamashita, Daisuke Yasuda
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Patent number: 10829439Abstract: Disclosed is a method for producing adipamide, which may include the steps of: (a) reacting glucose, nitric acid (HNO3), sodium nitrite (NaNO2) and potassium hydroxide (KOH) to produce a glucaric acid potassium salt, (b) producing glucamide by reacting the glucaric acid potassium salt, with an acidic solution and removing a potassium ion from the glucaric acid potassium salt, (c) preparing an reaction admixture by adding the glucamide and a catalyst to hydrogen halide and acetic acid, and (d) treating the reaction admixture with hydrogen gas in a reactor thereby producing the adipamide.Type: GrantFiled: November 21, 2018Date of Patent: November 10, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Chae-Hwan Hong, Na-Kyong Yun, Ha-Eun Jeong, Sung-Wan Jeon
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Patent number: 10584204Abstract: A process for producing polyamides makes flow guidance within the process more efficient. In some respects, the process is based on the polymerization of lactam to a polyamide-containing polymer melt, the subsequent granulation of the polymer melt to polyamide granules using granulation liquid, and the subsequent extraction of monomeric and oligomeric constituents from the PA granules in an extraction column. In some examples, a temperature of the granulation liquid before being fed into an extraction liquid stream is lower than a temperature of the extraction liquid stream before the granulation liquid is fed into the extraction liquid stream. The invention relates also to a device for carrying out processes such as this one.Type: GrantFiled: February 2, 2016Date of Patent: March 10, 2020Assignees: UHDE HIGH PRESSURE TECHNOLOGIES GMBH, THYSSENKRUPP AGInventor: Bernd Königsmann
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Patent number: 10442901Abstract: A powder composition including a plurality of thermoplastic particles having an optimized particle size and particle size distribution is disclosed. The powder composition includes a plurality of thermoplastic particles having a bimodal particle size distribution or a trimodal particle size distribution. Also disclosed are methods of preparing three-dimensional articles, methods of preparing a powder coating, and articles prepared by the methods.Type: GrantFiled: September 2, 2016Date of Patent: October 15, 2019Assignee: SABIC GLOBAL TECHNOLOGIES B.V.Inventor: Brian Price
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Patent number: 10414710Abstract: A method for preparing bio adipic acid includes steps of (a) preparing a glucaric acid potassium salt by mixing and reacting glucose, nitric acid (HNO3), sodium nitrite (NaNO2) and potassium hydroxide (KOH), (b) preparing glucamide from the glucaric acid potassium salt prepared in the step (a), (c) preparing 2,4-hexadiene diamide by performing a deoxydehydration reaction on the glucamide prepared in the step (b), (d) preparing adipamide by introducing the 2,4-hexadiene diamide prepared in the step (c), hydrogen and a hydrogenation catalyst to a reactor and performing a hydrogenation reaction, and (e) preparing adipic acid by introducing the adipamide prepared in the step (d) and an aqueous hydrochloric acid solution to a reactor and then performing a hydrolysis reaction at a specific temperature.Type: GrantFiled: October 4, 2018Date of Patent: September 17, 2019Assignees: Hyundai Motor Company, Kia Motors Corporation, Seoul National University R&DB FoundationInventors: Chae-Hwan Hong, Ha-Eun Jeong, Na-Kyong Yun, Sung-Wan Jeon, So-Hyun Kwon, Na-Ra Shin, So-Jeong Moon, Young-Gyu Kim
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Patent number: 10329590Abstract: There is provided a method of producing aminohexanoic acid and/or aminohexanoic acid ester from synthesis gas, the method comprising: A. contacting the synthesis gas with at least one bacteria capable of carrying out the Wood-Ljungdahl pathway and the ethanol-carboxylate fermentation to produce hexanoic acid; and B. contacting the hexanoic acid with a genetically modified cell to produce aminohexanoic acid and/or aminohexanoic acid ester, wherein the genetically modified cell has an increased activity, in comparison with its wild type, of alkane monooxygenase, alcohol dehydrogenase, and ?-transaminase.Type: GrantFiled: May 5, 2015Date of Patent: June 25, 2019Assignee: Evonik Degussa GmbHInventors: Thomas Haas, Eva-Maria Eckl, Simon Beck
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Patent number: 9809538Abstract: Provided are modified natural compounds that are produced, at least in part, from (A) at least one epoxidized and/or maleated natural fatty acid, or epoxidized and/or maleated natural oil, and (B) at least one lactam having at least one hydroxyl functional group, wherein the lactam may be in a blend with one or more optional alcohol(s). Among other properties, the modified natural compounds may exhibit dispersibility or solubility characteristics in water and/or alcohols. The invention further provides a wide variety of compositions comprising the modified natural compounds.Type: GrantFiled: July 25, 2011Date of Patent: November 7, 2017Assignee: ISP INVESTMENTS LLCInventors: Osama M. Musa, Ezat Khosravi
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Patent number: 9708271Abstract: The present application relates to an extraction reactor with which granular material, in particular granular polyamide, can undergo extraction, soluble components being dissolved out of the granular material with an extraction liquid during the extraction. In the case of polyamide materials, these are for example oligomeric or monomeric components which have remained in the granular material during the polycondensation reaction for the production of the polyamide materials.Type: GrantFiled: November 6, 2013Date of Patent: July 18, 2017Assignee: Uhde Inventa-Fischer GmbHInventors: Ekkehard Siebecke, Johannes Katzer, Bernd Königsmann, Mirko Bär
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Patent number: 9611355Abstract: Powder compositions and articles and methods of forming articles from powder compositions are provided. The powder compositions include at least one powder that preferably includes an amount of one or more branched polymers such as, for example, one or more branched polyamide polymers. The powder composition is preferably capable of being formed, via a layer-by-layer sintering process such as, for example, selective laser sintering, into a three-dimensional article.Type: GrantFiled: March 12, 2009Date of Patent: April 4, 2017Assignee: 3D Systems, Inc.Inventors: Raffaele Martinoni, Paul Boehler, Paul Stenson, Jürgen Spindler, Eberhard Kinkelin, Gerhard Pössnecker
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Patent number: 9580550Abstract: The invention relates to a method for producing polyamide composite materials containing silicon, comprising the copolymerisation of: a) at least one silicon compound (SV) having at least one silicon atom, said silicon atom having at least one lactamyl group of formula (A) bonded by means of the nitrogen atom thereof; b) the method also comprises copolymerisation with at least one comonomer (CM) that is selected from among ammonium salts of dicarboxylic acids, amino acids, amino acid amides and lactams. In formula (A), m represents a whole number between 1 and 11, in particular in between 2 and 9, and specifically 3, and # represents the connection to the silicon atom of the compound (SV).Type: GrantFiled: May 16, 2014Date of Patent: February 28, 2017Assignee: BASF SEInventors: Rolf-Egbert Gruetzner, Arno Lange, Lysann Kassner, Andreas Seifert, Stefan Spange
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Patent number: 9216937Abstract: The present disclosure relates generally to water concentration reduction processes within an adipic acid process. The present invention also includes process for converting a glucose-containing feed derived from a carbohydrate source to an adipic acid product wherein the process includes the steps of: converting glucose in the feed to a reaction product including a hydrodeoxygenation substrate and a first concentration of water; reducing the concentration of water in the reaction product to produce a feedstock including the hydrodeoxygenation substrate and second concentration of water, wherein the second concentration of water is less than the first concentration of water; and converting at least a portion of the hydrodeoxygenation substrate in the feedstock to an adipic acid product. Processes are also disclosed for producing hexamethylene diamine and caprolactam from the adipic acid product.Type: GrantFiled: November 30, 2012Date of Patent: December 22, 2015Assignee: Rennovia Inc.Inventors: Raymond Archer, Gary M. Diamond, Eric L. Dias, Vincent J. Murphy, Miroslav Petro, John D. Super
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Patent number: 9040653Abstract: This disclosure provides methods of controlled polymerization of cyclic compounds catalyzed by carbene derivatives having a general formula as shown below, and to obtain a biodegradable polymeric material having a large molecular weight, a narrow dispersity, and no metallic impurity.Type: GrantFiled: February 24, 2011Date of Patent: May 26, 2015Assignee: NANJING UNIVERSITY OF TECHNOLOGYInventors: Zhenjiang Li, Pingkai Ouyang, He Huang
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Publication number: 20150141453Abstract: Disclosed are polymers containing a backbone comprising alternating N-protected hydroxymethylaniline units (“spacer”) and linker units.Type: ApplicationFiled: May 20, 2013Publication date: May 21, 2015Inventors: Jianjun Cheng, Yanfeng Zhang
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Patent number: 9012026Abstract: The invention relates to a copolyamide comprising at least two different units corresponding to the following general formulation: A/X.T A is chosen from a unit obtained from an amino acid, a unit obtained from a lactam and a unit corresponding to the formula (Ca diamine).(Cb diacid), with a representing the number of carbon atoms of the diamine and b representing the number of carbon atoms of the diacid, a and b each being between 4 and 36, advantageously between 9 and 18, X.Type: GrantFiled: April 1, 2014Date of Patent: April 21, 2015Assignee: Arkema FranceInventors: Thierry Briffaud, Philippe Blondel
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Patent number: 8993686Abstract: Biodegradable saturated and unsaturated polyester amides (PEA)s made from multiamino acid monomers and methods of making biodegradable saturated and unsaturated PEAs.Type: GrantFiled: March 31, 2010Date of Patent: March 31, 2015Assignee: Cornell UniversityInventors: Chih-Chang Chu, Mingxiao Deng
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Patent number: 8987409Abstract: The present invention relates to a composition that can be used to manufacture an impermeable, sealing, tight envelope, to a process for manufacturing an impermeable envelope, and to a tank. The composition of the invention comprises in % by weight relative to the total weight of the composition: from 70 to 90% of a monomer (I); from 0.1 to 1% of an activator (II), in which R is chosen from the group comprising CnH2n+2, n being an integer chosen from 1 to 10; —OH; —OCn H2n+2, n being an integer chosen from 1 to 10; and —NHR? where R? is either CnH2n+2, n being an integer chosen from 1 to 10, or an amine functional group; from 2 to 6% of a catalyst (III), in which X is chosen from the group comprising MgBr, MgI, Li and Na; and from 10 to 20% of an additive (IV), with: This composition can be used, for example, to manufacture elements that are impermeable to fluids, for example impermeable envelopes, for example that can be used in the manufacture of type IV tanks or hydraulic accumulators.Type: GrantFiled: January 10, 2014Date of Patent: March 24, 2015Assignees: Commissariat a l'Energie Atomique, L'Air Liquide, Societe Anonyme pour l'etude et l'exploitation des procedes Georges ClaudeInventors: Philippe Mazabraud, Elodie Chauvot, Laurent Delnaud, Katia Barral
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Patent number: 8981039Abstract: The present invention relates to a composition that can be used to manufacture an impermeable, sealing, tight envelope, to a process for manufacturing an impermeable envelope, and to a tank. The composition of the invention comprises in % by weight relative to the total weight of the composition: from 70 to 90% of a monomer (I); from 0.1 to 1% of an activator (II), in which R is chosen from the group comprising CnH2n+2, n being an integer chosen from 1 to 10; —OH; —OCnH2n+2, n being an integer chosen from 1 to 10; and —NHR? where R? is either CnH2n+2, n being an integer chosen from 1 to 10, or an amine functional group; from 2 to 6% of a catalyst (III), in which X is chosen from the group comprising MgBr, MgI, Li and Na; and from 10 to 20% of an additive (IV), with: This composition can be used, for example, to manufacture elements that are impermeable to fluids, for example impermeable envelopes, for example that can be used in the manufacture of type IV tanks or hydraulic accumulators.Type: GrantFiled: January 10, 2014Date of Patent: March 17, 2015Assignees: Commissariat a l'Energie Atomique, L'Air Liquide, Societe Anonyme pour l'etude et l'exploitation des procedes Georges ClaudeInventors: Philippe Mazabraud, Elodie Chauvot, Laurent Delnaud, Katia Barral
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Patent number: 8971766Abstract: The present invention provides an electrophotographic member capable of more definitely suppressing occurrence of a C set image. The electrophotographic member has a surface layer including a modified polysiloxane having a structure represented by the following formula (1). In the formula (1), G represents a bivalent group having an ethylene oxide chain represented by (—O—C2H4—) and L represents polysiloxane having at least a SiO4/2(Q) unit or a SiO3/2(T) unit.Type: GrantFiled: June 4, 2013Date of Patent: March 3, 2015Assignee: Canon Kabushiki KaishaInventors: Tomohito Taniguchi, Hiroshi Mayuzumi, Yusuke Yagisawa
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Patent number: 8962769Abstract: The present invention relates to novel polyimidothioethers-inorganic nanoparticle hybrid material, which exhibit good surface planarity, thermal dimensional stability, tunable refractive index, and high optical transparency upon forming into films. The present invention also relates to polyimidothioethers which is an intermediate for preparing the present hybrid material, and their preparation.Type: GrantFiled: June 27, 2012Date of Patent: February 24, 2015Assignee: National Taiwan UniversityInventors: Guey-Sheng Liou, Chia-Liang Tsai, Hung-Ju Yen, Wen-Chang Chen, Wen-Yen Chiu, Yang-Yen Yu
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Publication number: 20150051368Abstract: The present invention relates to novel compositions for production of cast polyamides.Type: ApplicationFiled: August 31, 2012Publication date: February 19, 2015Applicants: LANXESS DEUTSCHLAND GMBH, RHEIN CHEMIE RHEINAU GMBHInventors: Andreas Kugler, Armin Eckert, Wilhelm Laufer, Michael Witt, Detlev Joachimi, Gunter Margraf, Thomas Fruh
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Patent number: 8957179Abstract: Disclosed is a shape memory polyamide, produced by adding a polyvalent carboxylic acid and a polyvalent amine when polyamide is polymerized from e-caprolactam or hexamethylenediamine and adipic acid, and having an aromatic component which is introduced by one or more among the polyvalent carboxylic acid and the polyvalent amine and has a total amount ranging from 0.4 mol % to 10 mol % based on the amount of the raw material for polyamide. Also, a method of producing a shape memory polyamide fabric using the shape memory polyamide is provided. The polyamide fabric produced using the shape memory polyamide is a highly functional fabric which does not easily wrinkle and easily recovers its original shape even when wrinkled, and thus may be applied as material for various kinds of clothing.Type: GrantFiled: September 17, 2013Date of Patent: February 17, 2015Assignee: Hyosung CorporationInventor: Chang Woo Kim
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Patent number: 8957180Abstract: The present invention relates to a process for producing moldings comprising (A) at least one lactam, (B) at least one activator, and (C) at least one catalyst, where (A) to (C) proceed through treatments comprising a) mixing of (A), (B), and (C), b) metering of (A), (B), and (C) into an apparatus for producing mixture droplets, and producing mixture droplets, and c) depositing the mixture droplets comprising (A), (B), and (C) on a belt, and d) producing moldings.Type: GrantFiled: August 17, 2012Date of Patent: February 17, 2015Assignee: BASF SEInventors: Dietrich Scherzer, Philippe Desbois, Freddy Gruber, Achim Stammer
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Publication number: 20150045279Abstract: Described are oligoamides that improve the color protection properties of detergents and cleaning agents during their use for washing or cleaning colored textile fabrics. The oligoamides are rich in amino groups.Type: ApplicationFiled: February 12, 2013Publication date: February 12, 2015Inventors: Roland Ettl, Axel Wilms, Christian Schmidt, Markus Brym, Birgit Glüsen, Mareile Job, Ulrich Pegelow, Carolin Trenka
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Publication number: 20140350213Abstract: The present invention relates to a process for purifying polyamide particles wherein these are contacted with a lactam-containing treatment medium with or without a gaseous treatment medium.Type: ApplicationFiled: July 3, 2013Publication date: November 27, 2014Applicant: BASF SEInventors: Faissal-Ali El-Toufaili, Achim Stammer, Jens Becker, Karsten Daunke, Thomas Sauer
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Publication number: 20140336350Abstract: The present invention relates to novel compositions, to the preparation thereof and to the use thereof for the production of cast polyamides.Type: ApplicationFiled: April 30, 2014Publication date: November 13, 2014Applicant: Rhein Chemie Rheinau GmbHInventors: Wilhelm LAUFER, Andre PALZER, Volker WENZEL
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Patent number: 8883048Abstract: The present invention relates to a reflector for a light-emitting device consisting of (A) an polyamide composition comprising a polyamide polymerized from (a) a dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and (b) a diamine comprising at least 50 mol % of a diamine with a branched main chain.Type: GrantFiled: September 7, 2010Date of Patent: November 11, 2014Assignees: Asahi Kasei Chemicals Corporation, Nichia CorporationInventors: Kazuhiko Hashimoto, Kazunori Terada, Masafumi Kuramoto, Motohisa Kitani
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Publication number: 20140329916Abstract: Provided herein is a non-naturally occurring microbial organism having a methanol metabolic pathway that can enhance the availability of reducing equivalents in the presence of methanol. Such reducing equivalents can be used to increase the product yield of organic compounds produced by the microbial organism, such as adipate, 6-aminocaproate, hexamethylenediamine or caprolactam. Also provided herein are methods for using such an organism to produce adipate, 6-aminocaproate, hexamethylenediamine or caprolactam.Type: ApplicationFiled: December 16, 2013Publication date: November 6, 2014Applicant: Genomatica, Inc.Inventors: Anthony P. Burgard, Robin E. Osterhout, Stephen J. Van Dien, Cara Ann Tracewell, Priti Pharkya, Stefan Andrae
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Patent number: 8871862Abstract: A molding compound, containing at least 30% by weight of a copolyamide, which is derived from the following monomers: a) 50 to 95 mole percent of the combination of a diamine, selected from the group consisting of 1,9-nonane diamine, 1,10-decane diamine, 1,11-undecane diamine and 1,12-dodecane diamine, and terephthalic acid, and b) 5 to 50 mole percent of the combination of a diamine, selected from the group consisting of 2,2,4-trimethylhexamethylene diamine, 2,4,4-trimethylhexamethylene diamine, and mixtures thereof, and terephthalic acid. The copolyamide is crystalline and has low water absorption.Type: GrantFiled: July 8, 2010Date of Patent: October 28, 2014Assignee: Evonik Degussa GmbHInventors: Andreas Pawlik, Martin Roos, Franz-Erich Baumann, Harald Haeger
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Publication number: 20140256905Abstract: The present invention relates to a process for preparing polyamides by hydrolytic polymerization, in which the polyimide is treated in a devolatilizing apparatus after the hydrolytic polymerization.Type: ApplicationFiled: March 6, 2014Publication date: September 11, 2014Applicant: BASF SEInventors: Silke Biedasek, Achim Stammer
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Publication number: 20140243473Abstract: The invention relates to a method for direct, continuous modification of polymer melts with additives in the side stream and is distinguished by a very high degree of flexibility in product change-overs.Type: ApplicationFiled: June 5, 2012Publication date: August 28, 2014Applicant: UHDE INVENTA-FISCHER GMBHInventors: Ekkehard Siebecke, Mirko Bär, Eberhard Raue
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Patent number: 8802809Abstract: The present invention relates to a new method of production of cast polyamides.Type: GrantFiled: October 27, 2011Date of Patent: August 12, 2014Assignee: Rhein Chemie Rheinau GmbHInventors: Wilhelm Laufer, Armin Eckert
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Publication number: 20140221600Abstract: This invention relates to a biaxially stretched product comprising a copolyamide comprising monomeric units of: aliphatic non-cyclic diamines X and aliphatic non-cyclic dicarboxylic acids Y or aliphatic non-cyclic ?,?-amino acids Z, and diamines M and diacids N in an amount between 0.1 to 2 wt % based on the total amount of copolyamide, and in which M and N are cyclic, and wherein the product has been stretched at a temperature of between the glass transition temperature (Tg) and the melting temperature (Tm). A method of preparation is claimed, as well as a multilayer film comprising the biaxially stretched product.Type: ApplicationFiled: June 28, 2012Publication date: August 7, 2014Applicant: DSM IP ASSETS B.V.Inventors: Alexander Antonius Marie Sroeks, Serbia Tomic
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Patent number: 8772438Abstract: A process for making a polyamide polymer, said process comprising heating, in one or more ionic liquid(s), one or more polyamide precursor(s) selected from: (i) one or more free dicarboxylic acid(s) or ester(s) thereof, with one or more diamine(s); or (ii) one or more salt(s) of a dicarboxylic acid with a diamine; or (iii) one or more lactam(s); or (iv) mixtures of any of the foregoing precursors (i) to (iii).Type: GrantFiled: June 30, 2010Date of Patent: July 8, 2014Assignee: Invista North America S.är.l.Inventors: Keith Whiston, Charles Richard Langrick, Kenneth Richard Seddon, Alberto V. Puga
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Patent number: 8772435Abstract: The present invention relates to dispersants for dispersing a particulate solid for millbases, paints and inks. The present invention provides a composition containing a particulate solid, a polar organic medium and a compound or salts thereof for formula T-(A)m(B)n—X—Z-Q(0-p) wherein T is hydrogen or a polymerization terminating group; A is the residue of a hydroxy carboxylic acid or lactone thereof; B is the residue of an amino carboxylic acid; X is a direct bond or a divalent group; Z is an acidic or basic group or a moiety which contains an acidic or basic group; Q is an optional residue of an oxide, urea or a dibasic acid or anhydride thereof; m and n are positive integers; and p represents the number of residual amino and/or imino groups in Z.Type: GrantFiled: April 7, 2006Date of Patent: July 8, 2014Assignee: Lubrizol Advanced Materials, Inc.Inventors: Neil L. Simpson, Dean Thetford
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Publication number: 20140179889Abstract: Elevated temperature electrospinning apparatus comprises a pump upstream of or containing a resistance heater, means to shield applied electrostatic field from the resistance heater, and a temperature modulator for modulating temperature in the spinning region.Type: ApplicationFiled: February 28, 2014Publication date: June 26, 2014Applicant: Cornell UniversityInventors: Yong Lak JOO, Huajun ZHOU
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Publication number: 20140179849Abstract: What is described is the use of a polyamide moulding composition for the production of a stain-resistant article, the staining tendency (ST) of the article being at least 2. Here, the composition contains 30-100% by weight of a polyamide or a polyamide mixture, consisting of 50-100% by weight of at least one amorphous and/or microcrystalline polyamide having a glass transition temperature of at least 100° C., based on: 20-100 mol % of at least one cycloaliphatic diamine; and 0-80 mol % of at least one other aliphatic and/or aromatic diamine; and also aromatic and/or aliphatic dicarboxylic acids comprising at least 6 carbon atoms, and 0-50% by weight of at least one semi-aromatic polyamide. In addition, 0-70% by weight of fibrous fillers (B1) and/or particulate fillers (B2), 0-30% by weight of impact toughness modifier and/or polymers different from (A), 0-25% by weight of a flame retardant, and 0-3% by weight of additives may also be contained.Type: ApplicationFiled: April 12, 2013Publication date: June 26, 2014Applicant: EMS-PATENT AGInventors: Etienne AEPLI, Mark PFLEGHAR, Botho HOFFMANN, Heinz HOFF
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Patent number: 8759475Abstract: Polyamides, e.g., polyhexamethylene adipamide, are continuously produced via the following stages: Stage 1: into and through a reactor, polycondensing a liquid stream which contain the polyamide monomer(s) at a pressure P1 greater than atmospheric pressure, the stream of material at the outlet of the reactor including a vapor phase which contains steam and a liquid phase which at least contains the product of polycondensation; Stage 2: feeding the outlet stream of material into a chamber, evacuating at least a portion of the vapor phase therefrom and recovering at least the liquid phase which at least contains the product of polycondensation, the pressure P2 in the chamber being regulated at a set value such that it is greater than atmospheric pressure and the residence time of said liquid phase in the chamber being less than 5 minutes; and Stage 3: pressure reducing at least the liquid phase which at least contains the stream of polycondensation product recovered during Stage 2.Type: GrantFiled: March 25, 2008Date of Patent: June 24, 2014Assignee: Rhodia OperationsInventors: Jean-Francois Thierry, Sébastien Lomel, Vincent Mollet, Matthieu Helft, Cédric Fillon
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Patent number: 8759476Abstract: The process for preparing a polyamide based on dicarboxylic acids and diamines has the following stages: 1) providing an aqueous monomer mixture of dicarboxylic acids and diamines, the molar ratio of dicarboxylic acids to diamines being adjusted such that a molar deficiency of dicarboxylic acids or diamines of from 1 to 10 mol % is present at the outlet of stage 3), based on the other component in each case, 2) transferring the aqueous mixture from stage 1) to a continuous evaporator reactor in which diamines and dicarboxylic acids are reacted at a temperature in the range from 100 to 370° C. and a pressure in the range from 1 to 50 bar, 3) transferring the mixture from stage 2) to a separator which is operated at a temperature in the range from 100 to 370° C.Type: GrantFiled: June 12, 2008Date of Patent: June 24, 2014Assignee: BASF SEInventors: Philippe Desbois, Hagen Stawitzki, Ralf Neuhaus, Hans-Joachim Weis, Jurgen Weichmann, Racquel Fernandez Rodiles, Gunter Vogel
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Patent number: 8748004Abstract: The invention relates to a copolyamide comprising at least two different units corresponding to the following general formulation: A/X.T A is chosen from a unit obtained from an amino acid, a unit obtained from a lactam and a unit corresponding to the formula (Ca diamine).(Cb diacid), with a representing the number of carbon atoms of the diamine and b representing the number of carbon atoms of the diacid, a and b each being between 4 and 36, advantageously between 9 and 18, X.Type: GrantFiled: August 6, 2009Date of Patent: June 10, 2014Assignee: Arkema FranceInventors: Thierry Briffaud, Philippe Blondel