Lactam-containing Reactant Patents (Class 528/323)
  • Patent number: 12012491
    Abstract: 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: Grant
    Filed: January 22, 2021
    Date of Patent: June 18, 2024
    Assignee: UNITIKA LTD.
    Inventors: Akiko Kurosawa, Atsuko Noda
  • Patent number: 11991894
    Abstract: 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: Grant
    Filed: December 29, 2020
    Date of Patent: May 21, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Penghao Gu, Chunyan Xie, Lingzhi Qian
  • Patent number: 11923500
    Abstract: 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: Grant
    Filed: May 8, 2023
    Date of Patent: March 5, 2024
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Atsuko Takahagi, Rikiya Yamashita, Daisuke Yasuda
  • Patent number: 11634624
    Abstract: 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: Grant
    Filed: March 28, 2019
    Date of Patent: April 25, 2023
    Assignee: MOL MAGYAR OLAJ- ÉS GÁZIPARI NYILVÁNOSAN MŰKÖDŐ RÉSZVÉNYTÁRSASÁG
    Inventors: József Dudás, Sándor Puskás, Árpád Vágó, László Bartha, Roland Nagy, Mária Törö, István Lakatos
  • Patent number: 11534832
    Abstract: 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: Grant
    Filed: September 9, 2020
    Date of Patent: December 27, 2022
    Assignee: The Regents of the University of California
    Inventors: Lawrence Kulinsky, Edward Tackett, Benjamin Dolan
  • Patent number: 11512197
    Abstract: 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: Grant
    Filed: June 11, 2018
    Date of Patent: November 29, 2022
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Kota Inoue
  • Patent number: 11384214
    Abstract: 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: Grant
    Filed: November 16, 2018
    Date of Patent: July 12, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Clio Cocquet, Quentin P. Pineau, Helena Cheminet, Francois Fernagut
  • Patent number: 11186684
    Abstract: 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: Grant
    Filed: July 10, 2019
    Date of Patent: November 30, 2021
    Assignee: BASF SE
    Inventors: Achim Stammer, Simon Gramlich, Andreas Bauder
  • Patent number: 10913205
    Abstract: 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: Grant
    Filed: December 8, 2016
    Date of Patent: February 9, 2021
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Yi Feng, Jesiska Tandy, Rachael Donovan
  • Patent number: 10870130
    Abstract: 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: Grant
    Filed: June 16, 2015
    Date of Patent: December 22, 2020
    Assignee: Hexcel Corporation
    Inventors: Scott DeFelice, Anthony DeCarmine
  • Patent number: 10870232
    Abstract: 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: Grant
    Filed: November 6, 2018
    Date of Patent: December 22, 2020
    Assignee: 3D SYSTEMS, INC.
    Inventor: Raffaele Martinoni
  • Patent number: 10854855
    Abstract: 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: Grant
    Filed: August 24, 2015
    Date of Patent: December 1, 2020
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventors: Atsuko Takahagi, Rikiya Yamashita, Daisuke Yasuda
  • Patent number: 10829439
    Abstract: 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: Grant
    Filed: November 21, 2018
    Date of Patent: November 10, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chae-Hwan Hong, Na-Kyong Yun, Ha-Eun Jeong, Sung-Wan Jeon
  • Patent number: 10584204
    Abstract: 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: Grant
    Filed: February 2, 2016
    Date of Patent: March 10, 2020
    Assignees: UHDE HIGH PRESSURE TECHNOLOGIES GMBH, THYSSENKRUPP AG
    Inventor: Bernd Königsmann
  • Patent number: 10442901
    Abstract: 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: Grant
    Filed: September 2, 2016
    Date of Patent: October 15, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventor: Brian Price
  • Patent number: 10414710
    Abstract: 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: Grant
    Filed: October 4, 2018
    Date of Patent: September 17, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Seoul National University R&DB Foundation
    Inventors: Chae-Hwan Hong, Ha-Eun Jeong, Na-Kyong Yun, Sung-Wan Jeon, So-Hyun Kwon, Na-Ra Shin, So-Jeong Moon, Young-Gyu Kim
  • Patent number: 10329590
    Abstract: 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: Grant
    Filed: May 5, 2015
    Date of Patent: June 25, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Thomas Haas, Eva-Maria Eckl, Simon Beck
  • Patent number: 9809538
    Abstract: 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: Grant
    Filed: July 25, 2011
    Date of Patent: November 7, 2017
    Assignee: ISP INVESTMENTS LLC
    Inventors: Osama M. Musa, Ezat Khosravi
  • Patent number: 9708271
    Abstract: 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: Grant
    Filed: November 6, 2013
    Date of Patent: July 18, 2017
    Assignee: Uhde Inventa-Fischer GmbH
    Inventors: Ekkehard Siebecke, Johannes Katzer, Bernd Königsmann, Mirko Bär
  • Patent number: 9611355
    Abstract: 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: Grant
    Filed: March 12, 2009
    Date of Patent: April 4, 2017
    Assignee: 3D Systems, Inc.
    Inventors: Raffaele Martinoni, Paul Boehler, Paul Stenson, Jürgen Spindler, Eberhard Kinkelin, Gerhard Pössnecker
  • Patent number: 9580550
    Abstract: 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: Grant
    Filed: May 16, 2014
    Date of Patent: February 28, 2017
    Assignee: BASF SE
    Inventors: Rolf-Egbert Gruetzner, Arno Lange, Lysann Kassner, Andreas Seifert, Stefan Spange
  • Patent number: 9216937
    Abstract: 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: Grant
    Filed: November 30, 2012
    Date of Patent: December 22, 2015
    Assignee: Rennovia Inc.
    Inventors: Raymond Archer, Gary M. Diamond, Eric L. Dias, Vincent J. Murphy, Miroslav Petro, John D. Super
  • Patent number: 9040653
    Abstract: 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: Grant
    Filed: February 24, 2011
    Date of Patent: May 26, 2015
    Assignee: NANJING UNIVERSITY OF TECHNOLOGY
    Inventors: Zhenjiang Li, Pingkai Ouyang, He Huang
  • Publication number: 20150141453
    Abstract: Disclosed are polymers containing a backbone comprising alternating N-protected hydroxymethylaniline units (“spacer”) and linker units.
    Type: Application
    Filed: May 20, 2013
    Publication date: May 21, 2015
    Inventors: Jianjun Cheng, Yanfeng Zhang
  • Patent number: 9012026
    Abstract: 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: Grant
    Filed: April 1, 2014
    Date of Patent: April 21, 2015
    Assignee: Arkema France
    Inventors: Thierry Briffaud, Philippe Blondel
  • Patent number: 8993686
    Abstract: Biodegradable saturated and unsaturated polyester amides (PEA)s made from multiamino acid monomers and methods of making biodegradable saturated and unsaturated PEAs.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: March 31, 2015
    Assignee: Cornell University
    Inventors: Chih-Chang Chu, Mingxiao Deng
  • Patent number: 8987409
    Abstract: 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: Grant
    Filed: January 10, 2014
    Date of Patent: March 24, 2015
    Assignees: Commissariat a l'Energie Atomique, L'Air Liquide, Societe Anonyme pour l'etude et l'exploitation des procedes Georges Claude
    Inventors: Philippe Mazabraud, Elodie Chauvot, Laurent Delnaud, Katia Barral
  • Patent number: 8981039
    Abstract: 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: Grant
    Filed: January 10, 2014
    Date of Patent: March 17, 2015
    Assignees: Commissariat a l'Energie Atomique, L'Air Liquide, Societe Anonyme pour l'etude et l'exploitation des procedes Georges Claude
    Inventors: Philippe Mazabraud, Elodie Chauvot, Laurent Delnaud, Katia Barral
  • Patent number: 8971766
    Abstract: 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: Grant
    Filed: June 4, 2013
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohito Taniguchi, Hiroshi Mayuzumi, Yusuke Yagisawa
  • Patent number: 8962769
    Abstract: 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: Grant
    Filed: June 27, 2012
    Date of Patent: February 24, 2015
    Assignee: National Taiwan University
    Inventors: Guey-Sheng Liou, Chia-Liang Tsai, Hung-Ju Yen, Wen-Chang Chen, Wen-Yen Chiu, Yang-Yen Yu
  • Publication number: 20150051368
    Abstract: The present invention relates to novel compositions for production of cast polyamides.
    Type: Application
    Filed: August 31, 2012
    Publication date: February 19, 2015
    Applicants: LANXESS DEUTSCHLAND GMBH, RHEIN CHEMIE RHEINAU GMBH
    Inventors: Andreas Kugler, Armin Eckert, Wilhelm Laufer, Michael Witt, Detlev Joachimi, Gunter Margraf, Thomas Fruh
  • Patent number: 8957179
    Abstract: 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: Grant
    Filed: September 17, 2013
    Date of Patent: February 17, 2015
    Assignee: Hyosung Corporation
    Inventor: Chang Woo Kim
  • Patent number: 8957180
    Abstract: 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: Grant
    Filed: August 17, 2012
    Date of Patent: February 17, 2015
    Assignee: BASF SE
    Inventors: Dietrich Scherzer, Philippe Desbois, Freddy Gruber, Achim Stammer
  • Publication number: 20150045279
    Abstract: 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: Application
    Filed: February 12, 2013
    Publication date: February 12, 2015
    Inventors: Roland Ettl, Axel Wilms, Christian Schmidt, Markus Brym, Birgit Glüsen, Mareile Job, Ulrich Pegelow, Carolin Trenka
  • Publication number: 20140350213
    Abstract: 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: Application
    Filed: July 3, 2013
    Publication date: November 27, 2014
    Applicant: BASF SE
    Inventors: Faissal-Ali El-Toufaili, Achim Stammer, Jens Becker, Karsten Daunke, Thomas Sauer
  • Publication number: 20140336350
    Abstract: The present invention relates to novel compositions, to the preparation thereof and to the use thereof for the production of cast polyamides.
    Type: Application
    Filed: April 30, 2014
    Publication date: November 13, 2014
    Applicant: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm LAUFER, Andre PALZER, Volker WENZEL
  • Patent number: 8883048
    Abstract: 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: Grant
    Filed: September 7, 2010
    Date of Patent: November 11, 2014
    Assignees: Asahi Kasei Chemicals Corporation, Nichia Corporation
    Inventors: Kazuhiko Hashimoto, Kazunori Terada, Masafumi Kuramoto, Motohisa Kitani
  • Publication number: 20140329916
    Abstract: 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: Application
    Filed: December 16, 2013
    Publication date: November 6, 2014
    Applicant: Genomatica, Inc.
    Inventors: Anthony P. Burgard, Robin E. Osterhout, Stephen J. Van Dien, Cara Ann Tracewell, Priti Pharkya, Stefan Andrae
  • Patent number: 8871862
    Abstract: 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: Grant
    Filed: July 8, 2010
    Date of Patent: October 28, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Andreas Pawlik, Martin Roos, Franz-Erich Baumann, Harald Haeger
  • Publication number: 20140256905
    Abstract: 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: Application
    Filed: March 6, 2014
    Publication date: September 11, 2014
    Applicant: BASF SE
    Inventors: Silke Biedasek, Achim Stammer
  • Publication number: 20140243473
    Abstract: 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: Application
    Filed: June 5, 2012
    Publication date: August 28, 2014
    Applicant: UHDE INVENTA-FISCHER GMBH
    Inventors: Ekkehard Siebecke, Mirko Bär, Eberhard Raue
  • Patent number: 8802809
    Abstract: The present invention relates to a new method of production of cast polyamides.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: August 12, 2014
    Assignee: Rhein Chemie Rheinau GmbH
    Inventors: Wilhelm Laufer, Armin Eckert
  • Publication number: 20140221600
    Abstract: 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: Application
    Filed: June 28, 2012
    Publication date: August 7, 2014
    Applicant: DSM IP ASSETS B.V.
    Inventors: Alexander Antonius Marie Sroeks, Serbia Tomic
  • Patent number: 8772438
    Abstract: 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: Grant
    Filed: June 30, 2010
    Date of Patent: July 8, 2014
    Assignee: Invista North America S.är.l.
    Inventors: Keith Whiston, Charles Richard Langrick, Kenneth Richard Seddon, Alberto V. Puga
  • Patent number: 8772435
    Abstract: 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: Grant
    Filed: April 7, 2006
    Date of Patent: July 8, 2014
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Neil L. Simpson, Dean Thetford
  • Publication number: 20140179889
    Abstract: 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: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Applicant: Cornell University
    Inventors: Yong Lak JOO, Huajun ZHOU
  • Publication number: 20140179849
    Abstract: 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: Application
    Filed: April 12, 2013
    Publication date: June 26, 2014
    Applicant: EMS-PATENT AG
    Inventors: Etienne AEPLI, Mark PFLEGHAR, Botho HOFFMANN, Heinz HOFF
  • Patent number: 8759475
    Abstract: 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: Grant
    Filed: March 25, 2008
    Date of Patent: June 24, 2014
    Assignee: Rhodia Operations
    Inventors: Jean-Francois Thierry, Sébastien Lomel, Vincent Mollet, Matthieu Helft, Cédric Fillon
  • Patent number: 8759476
    Abstract: 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: Grant
    Filed: June 12, 2008
    Date of Patent: June 24, 2014
    Assignee: BASF SE
    Inventors: Philippe Desbois, Hagen Stawitzki, Ralf Neuhaus, Hans-Joachim Weis, Jurgen Weichmann, Racquel Fernandez Rodiles, Gunter Vogel
  • Patent number: 8748004
    Abstract: 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: Grant
    Filed: August 6, 2009
    Date of Patent: June 10, 2014
    Assignee: Arkema France
    Inventors: Thierry Briffaud, Philippe Blondel