With Two Or More Reactants One Of Which Is A Carboxylic Acid Or Derivative And One Of Which Is An Organic Compound Containing At Least Two Amino Nitrogen Atoms Patents (Class 528/324)
  • Patent number: 10507127
    Abstract: This invention relates to an expanded device and its uses in human medical care, which include, inter alia, appetite suppression in a subject in need thereof and kits comprising thereof.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: December 17, 2019
    Assignee: EPITOMEE MEDICAL LTD.
    Inventors: Nir Betser, Valery Artmanov, Ran Kapri
  • Patent number: 10376461
    Abstract: Described herein is a polyether polyamide block copolymer as well compositions and products containing the polyether polyamide block copolymer. Methods of making and using the copolymer, the compositions, and products are also described herein.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: August 13, 2019
    Assignee: CRODA INTERNATIONAL PLC
    Inventors: Geng Lin, Nancy W. Harman
  • Patent number: 10017609
    Abstract: Polyamides based on dicarboxylic acids and on diamines are produced in a batch process by 1) feeding the entire amount of monomer composed of dicarboxylic acids, of diamines, and, if appropriate, of further polyamide-forming monomers, in the desired stoichiometry, in a closed stirred-tank reactor, 2) heating the monomer mixture in the stirred-tank reactor, with stirring, and with setting of a certain pressure, to a desired reaction temperature for the production of a prepolymer, 3) if appropriate, completely or partially depressurizing the reaction mixture from stage 2), 4) if appropriate, carrying out further thermal treatment of the reaction mixture from stage 2) or 3), and 5) reacting the reaction mixture from stage 2), 3), or 4) in the melt in a vented extruder for further increase of the molecular weight, with discharge of water vapor, and without use of additional polyamide-forming monomers or of polyamides.
    Type: Grant
    Filed: August 14, 2009
    Date of Patent: July 10, 2018
    Assignee: BASF SE
    Inventors: Philippe Desbois, Faissal-Ali El-Toufaili, Michael Gall, Andreas Wollny
  • Patent number: 9428612
    Abstract: The invention relates to a semi-crystalline semi-aromatic polyamide comprising A-A-B-B units derived from (a) dicarboxylic acids consisting of a mixture of aromatic dicarboxylic acid and aliphatic dicarboxylic acid and (b) diamines consisting of a mixture of long chain aliphatic diamine and short chain aliphatic diamine, wherein (a-i) the aromatic dicarboxylic acid consists for at least 80 mole % of terephthalic acid, and (a-ii) the aliphatic dicarboxylic acid constitutes at least 5 mole % of the dicarboxylic acids, (b-i) the short chain aliphatic diamine constitutes at least 10 mole % of the diamines, and (c) the aromatic dicarboxylic acid and the long chain aliphatic diamine constitute 60-90 mole % of the total molar amount of dicarboxylic acids and diamines.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: August 30, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Rudy Rulkens, Robert C. B. Crombach
  • Patent number: 9376535
    Abstract: The invention relates to a high molecular weight branched polyamide polymer comprising (a) blocks predominantly consisting of AA-BB repeat units, (b) blocks predominantly consisting of AB repeat units, and (c) branching units. The invention also relates to a process for the preparation of the high molecular weight branched polyamide polymer, comprising (1) a melt-mixing step wherein an essentially linear polyamide prepolymer (X-1), predominantly consisting of AA-BB repeat units, an essentially linear polyamide (pre)polymer (X-2), predominantly consisting of AB repeat units, and a branching agent are provided to and mixed and heated in a melt mixing apparatus, thereby forming a mixed melt, and the mixed melt being cooled, thereby forming a solid mixture; and (2) a solid state post condensation step wherein the solid mixture is post-condensed at elevated temperature in the solid state, thereby forming a high molecular weight branched polyamide polymer.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: June 28, 2016
    Assignee: DSM IP ASSETS B.V.
    Inventors: Nileshkumar Prakash Kukalyekar, Zhujuan Wang, Rudy Rulkens, Godefridus Bernardus Wilhelmus Leonardus Ligthart
  • Patent number: 9200124
    Abstract: The invention relates to a precursor article of a composite material comprising a polymer matrix and at least one reinforcing wire and/or fibers, said article comprising at least one reinforcing wire and/or fibers and at least one polymer matrix wire and/or fibers. The invention also relates to composite materials comprising a reinforcing material and a thermoplastic matrix and to the articles obtained using said materials.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: December 1, 2015
    Assignee: RHODIA OPERATIONS
    Inventors: Franck Bouquerel, Frederic Philippon
  • 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: 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
  • Publication number: 20150054884
    Abstract: The invention relates to a latex ink composition, the latex ink composition comprising a water soluble resin. The invention further relates to a water soluble resin suitable for a latex ink composition, the water soluble resin comprising a backbone and a stabilizing group, wherein the stabilizing group is capable of forming hydrogen bonds. The invention further relates to the use of a water soluble resin in a latex ink composition.
    Type: Application
    Filed: October 31, 2014
    Publication date: February 26, 2015
    Applicant: OCE-TECHNOLOGIES B.V.
    Inventors: Peter R. MARKIES, Jozef P. MOONEN, Frederik L. E. M. SUILEN, Ronald GROOTHUIJSE, Richard VAN HAMEREN, Peter O. COLIN, Mark A. M. LEENEN
  • Patent number: 8907046
    Abstract: Copolymers containing at least one perfluoropolyether segment and multiple aminooxalylamino groups are described. Methods of making the copolymers are also described. The copolymers can be prepared by reacting an oxalylamino-containing compound and an amine compound having at least two primary amino groups, at least two secondary amino groups, or at least one primary amino group plus at least one secondary amino group.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: December 9, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Suresh S. Iyer, Miguel A. Guerra, Richard G. Hansen, David S. Hays, Ramesh C. Kumar, George G. I. Moore, Yu Yang
  • Patent number: 8889822
    Abstract: The invention relates to a process for producing a shaped article having excellent mechanical properties, said article comprising a block copolymer PAX.Y/PE comprising polyamide (PA) blocks alternating with polyether (PE) blocks, prepared from homopolyamide blocks PAX.Y by polycondenstation of linear aliphatic diamines where PAX.Y is selected from the group consisting of PA 10,12; PA 6,18; PA 10,14; and PA 12.12, reacted with polyether PE blocks in the presence of a catalyst to produce a block copolymer PAX.Y/PE, wherein said PE blocks are either PE diols, or PE blocks comprising NH2 ends. The articles formed are either a fabric, film, sheet, rod, pipe, injection-molded component, or a shoe sole; the copolymer PAX.Y/PE has an improved flexural modulus of at least 300 MPa greater than a copolymer polyamide 12/polytetrametylene with the same size of PA block and with the same size of PE block respectively.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: November 18, 2014
    Assignee: Arkema France
    Inventor: Frederic Malet
  • Patent number: 8883955
    Abstract: PROBLEM There is provided a method for producing polylactic acid, which is capable of obtaining polylactic acid at low cost, and having high molecular weight. SOLUTION A method for producing polylactic acid by polymerizing molten lactide using at least one reactor having plug flow characteristics with ?(?), calculated from the following FORMULA (1), of 0.3 or smaller: ?(?)=?0?(E(?)×ABS(1??))d???(1) in the Formula (1), E(?) is a residence time distribution function determined by impulse response by starch syrup having a viscosity of 3 Pa·s, and ? is ratio of elapsed time ? and mean residence time ?0.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: November 11, 2014
    Assignees: Toyo Engineering Corporation, Masashino Chemical Laboratory, Ltd
    Inventors: Kenichiro Matsuba, Tsuyoshi Aoki
  • Patent number: 8877888
    Abstract: A polyamide modified by a multi-functional compound, and a method for producing said polyamide and compositions comprising same are described. A method for the production of a polyamide comprising linear macromolecular chains and star-shaped macromolecular chains is also described. A resulting polyamide having optimal mechanical and rheological properties in order to (i) improve mould filling speed and quality, and (ii) produce moldable compositions with high filler contents is also described.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: November 4, 2014
    Assignee: Rhodia Operations
    Inventors: Franco Speroni, Damien Zaher
  • Publication number: 20140272371
    Abstract: A paper machine clothing (PMC) fabric includes a plurality of monofilament yarns, at least some of which have a composition which is a thermoplastic resin. The thermoplastic resin yarns have physical properties including a water absorption of less than approximately 6% and a loop tenacity of greater than approximately 8.0 grams/denier.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: VOITH PATENT GMBH
    Inventors: Brian Good, Vikram Dhende, Yidan Zhu
  • Patent number: 8822629
    Abstract: The present invention relates to a method of prepairing a heat-resistant polyamide by carrying out condensation polymerization with a monomer mixture including a diester compound and a diamine compound. The present invention provides an economical method of prepairing a heat-resistant polyamide in that a monomer, a raw material, is simply and chiefly prepared, and the polymerizing reaction time is short because it does not need solvent separately.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: September 2, 2014
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Dong-June Hwang, Jae-Bong Lim, Seung-Do Leem, Tae-Young Kim, Sung-su Bae
  • Patent number: 8809434
    Abstract: The invention concerns processes for forming a polymer comprising residues of terephthaloyl chloride, paraphenylene diamine, and a salt of formula I wherein A? is a halogen anion, HSO4?, OH?, NO3?, C2H3O2?, or H2PO4?; the process comprising the steps of: a) forming a mixture comprising salt of formula I and paraphenylene diamine in a solvent system comprising an organic solvent and an inorganic salt; and b) adding terephthaloyl chloride to the mixture and allowing the formation of the polymer.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: August 19, 2014
    Assignee: EI du Pont de Nemours and Company
    Inventor: Kiu-Seung Lee
  • Patent number: 8791226
    Abstract: The present invention generally relates to the large-scale (e.g., greater than 1 kg scale) preparation of low molecular weight polylysine or polyornithine in high yield by preparing a polylysine or polyornithine having a weight average molecular weight from about 12,500 Daltons to about 22,000 Daltons and hydrolyzing it to produce a polylysine or polyornithine having a weight average molecular weight from about 5,500 Daltons to about 12,000 Daltons.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: July 29, 2014
    Assignee: Sigma-Aldrich Co. LLC
    Inventor: Ettigounder Ponnusamy
  • 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
  • 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
  • Publication number: 20140171588
    Abstract: A composition for a flexible substrate includes a polymer and a solvent. The polymer is selected from the polyamic acid, polyimide, and a combination thereof, and is obtained by subjecting a mixture including a tetracarboxylic dianhydride component and a diamine component to a reaction. The tetracarboxylic dianhydride component includes a bicyclic alicyclic tetracarboxylic dianhydride compound and a fluorine-containing tetracarboxylic dianhydride compound. The bicyclic alicyclic tetracarboxylic dianhydride compound is in an amount ranging from 30 mole % to 70 mole % and the fluorine-containing tetracarboxylic dianhydride compound is in an amount ranging from 30 mole % to 70 mole % based on 100 mole % of the tetracarboxylic dianhydride component.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 19, 2014
    Applicant: CHI MEI CORPORATION
    Inventor: Yu-Hao Liang
  • 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
  • Patent number: 8741398
    Abstract: The present invention provides a liquid crystal panel and an alignment film thereof, and the alignment film is made of a modified polyimide which has conjugated double bond at side chain. Resistance value of the alignment film is less than the resistance value of a liquid crystal material of the liquid crystal panel by properties of the conjugated double bond that can reduce the resistance value of a prior art polyimide. In addition, improving the imidization ratio of a modified polyimide alignment film is important. The present invention is conducted the charged ion from liquid crystal layer to the alignment film by the conjugated double bond of the modified polyimide at the side chain to prevent the increase in the ion density of the liquid crystal in part of this area, and improve the problem of image sticking.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: June 3, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Chung-Ching Hsieh, Cheng-ming He
  • Patent number: 8722842
    Abstract: The present invention provides an optical film exhibiting wavelength dispersion such that a retardation value is smaller on the shorter wavelength side, and capable of being also formed comparatively thinly. The optical film of the present invention is an optical film including a polyimide-based polymer represented by the following general formula (I). In the formula (I), m is 40% by mol or more and 100% by mol or less. R1 and R2 each independently denote a substituent having a carbon-carbon double bond or a triple bond. A, A?, B, B?, E, G, and H each denote a substituent, and small letters corresponding to these alphabets denote substitution number thereof. X and Y each independently denote bond part such as a covalent bond. The substituents having a carbon-carbon double bond or a triple bond represented by R1 and R2 are a substituted or unsubstituted aryl group, a substituted or unsubstituted vinyl group, and a substituted or unsubstituted ethynyl group.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: May 13, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Toshiyuki Iida, Yutaka Ohmori, Miyuki Kurogi
  • Patent number: 8697831
    Abstract: The invention is directed to a process for preparing polyamide polymers, particularly nylon 6, 6 and nylon 6, comprising fluoroether functionalized aromatic repeat units. In one embodiment, 1,6 diaminohexane, adipic acid, and fluoroether functionalized terephthallic or isophthallic acid or diester are reacted to form a polymer. The polymers so formed are useful for imparting soil resistance to polyamides, particularly in the form of films, molded parts, fibers, fabrics, and carpets.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: April 15, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, David Neil Marks, Fredrik Nederberg
  • Patent number: 8680199
    Abstract: A polyamide modified by a compound including at least one hydroxyl group, as well as a method for preparing said polyamide and articles obtained from the modified polyamide are described. A polyamide composition including reinforcing fillers, and a modified polyamide obtained by polymerization from, in particular, a monofunctional hydroxyaromatic acid or amino acid compound in the presence of diacid, diamine and/or amino acid or lactam compounds are also described.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: March 25, 2014
    Assignee: Rhodia Operations
    Inventors: Franck Touraud, Stéphane Jeol
  • Patent number: 8658724
    Abstract: What are described are a solution comprising a terpolymer formed from the monomers of components A, B and C, the total amount of which adds up to 100% by weight, a) 5 to 60% by weight of lactams as component A, b) 5 to 60% by weight of equimolar amounts of adipic acid and one or more aliphatic diamines as component B, c) 10 to 70% by weight of equimolar amounts of adipic acid and 4,4?-diaminodicyclohexylmethane (dicycan) as component C, in an aromatics-free solvent system comprising 50 to 100% by weight of C1-4-alkanol, 0 to 50% by weight of water and not more than 10% by weight of further aromatics-free solvents, where the total amount of the solvent system adds up to 100% by weight, and a terpolymer formed from the monomers of components A, B and C, the total amount of which adds up to 100% by weight, a) 15 to 40% by weight of lactams as component A, b) 20 to 45% by weight of equimolar amounts of adipic acid and one or more aliphatic diamines as component B, c) 25 to 60% by weight of equimolar amounts of
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: February 25, 2014
    Assignee: BASF SE
    Inventors: Christian Schmidt, Faissal-Ali El-Toufaili, Philippe Desbois, Raquel Fernandez Rodiles
  • Patent number: 8603634
    Abstract: This invention relates to poly(ester amide)s (PEAs) comprising inactivated terminal amino and carboxyl groups, methods of synthesizing the inactivated PEAs and uses for them in the treatment of vascular diseases.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: December 10, 2013
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Jessica Renee DesNoyer, Stephen Dirk Pacetti, Vidya Nayak, Lothar Kleiner
  • Publication number: 20130295309
    Abstract: A resin composition, preferably an adhesive composition, comprising a polyether polyamide elastomer capable of being strongly bended with a polyimide resin, preferably strongly bended through an easy process to form an interface between the polyimide resin and the composition, and a bonded composite having the resin composition and a polyimide resin which together form an interface to be bonded with each other. A resin composition for forming an interface together with a polyimide resin for bonding, wherein the resin composition comprises a polyether polyamide elastomer (component R) obtained by subjecting a specific aminocarboxylic acid compound A1 and/or lactam compound A2, polyether compound B, and dicarboxylic acid compound C to polymerization, wherein the content of the component R in the resin composition is 80 to 100% by weight.
    Type: Application
    Filed: December 28, 2011
    Publication date: November 7, 2013
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Yuma Irisa, Shuichi Maeda
  • Publication number: 20130261256
    Abstract: An object of the present invention is to provide a copolymer polyamide which has excellent strength, high-temperature strength, low water absorbance, low blocking properties, releasability and plasticizing time stability, and a copolymer polyamide composition which has excellent vibration fatigue characteristics, surface appearance and continuous productivity. A copolymer polyamide of the present invention is obtained by polymerizing (a) at least one alicyclic dicarboxylic acid, (b) one diamine having 8 or more carbon atoms, and (c) at least one copolymer component selected from the group consisting of the following (c-1) to (c-3): a (c-1) dicarboxylic acid other than the alicyclic dicarboxylic acid; a (c-2) diamine having fewer carbon atoms than the (b) diamine; and a (c-3) lactam and/or aminocarboxylic acid, and the copolymer polyamide satisfies specific conditions.
    Type: Application
    Filed: January 6, 2012
    Publication date: October 3, 2013
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Shinji Ieda, Kazunori Terada, Yu Nitto
  • Patent number: 8546517
    Abstract: The present invention generally relates to a poly(bisoxalamide) and a process for preparing and article comprising the poly(bisoxalamide).
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: October 1, 2013
    Inventors: Rene Broos, Niels Jurrian Sijbrandi, Pieter Jelle Dijkstra, Jan Feijen
  • Patent number: 8541539
    Abstract: A method for preparing a water-soluble polyamide, includes copolymerizing reactive monomers including caprolactam; ethylene glycol bis(2-aminoethyl)ether or ethylene glycol bis(3-aminopropyl)ether; and 5-sulfoisophthalic acid monosodium salt, wherein a molar ratio of caprolactam:ethylene glycol bis(2-aminoethyl)ether or ethylene glycol bis(3 -aminopropyl)ether:5-sulfoisophthalic acid monosodium salt is about 0:1:1 to about 5:1:1, advantageously about 1.85:1:1. Copolymerizing takes place at a copolymerization temperature of about 222-250° C. and a copolymerization pressure of about 3 Bar. The method further includes maintaining a temperature of about 222-250° C. for about 2-3 hours under normal pressure after the copolymerization step. The water-soluble polyamide has a solubility in water of about 10-70%.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: September 24, 2013
    Assignee: Taiwan Textile Research Institute
    Inventors: Yu-Chi Tseng, Chin-Wen Chen, S-P Rwei
  • Publication number: 20130225786
    Abstract: The invention relates to a copolyamide comprising units resulting from the polycondensation reaction of the following precursors: terephthalic acid (a), an aliphatic diamine (b) comprising x carbon atoms, x being an integer between 6 and 22, and an aminocarboxylic acid and/or a lactam (c) comprising a main chain and at least one linear or branched alkyl branching, the total number of carbon atoms of the aminocarboxylic acid and/or of the lactam (c) being between 12 and 36. The invention also relates to the process for preparing said copolyamide and to a composition comprising such a copolyamide.
    Type: Application
    Filed: September 2, 2011
    Publication date: August 29, 2013
    Applicants: INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON, ARKEMA FRANCE
    Inventors: Thierry Briffaud, Quentin Pineau, Emilie Goncalves, Jerome Robert Dupuy, Alain Jean-Jacques Rousseau
  • Patent number: 8507598
    Abstract: The invention relates to polyamide molding compounds with improved scratch resistance, which are constructed from (A1) 50 to 99.99 parts by weight of a copolyamide, (A2) 0 to 49.99 parts by weight of a transparent polyamide, (A3) 0 to 29.99 parts by weight of an aliphatic polyamide, (B) 0.01 to 5 parts by weight of at least one lubricant, and (C) 0 to 3 parts by weight of further additives, with the proviso that the sum of (A1) and (A2) and (A3) and (B) produces 100 parts by weight.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: August 13, 2013
    Assignee: EMS-Patent AG
    Inventors: Friedrich Severin Bühler, Christian Rytka, Walter Alois Tobisch, Sepp Bass
  • Publication number: 20120302723
    Abstract: A polyamide compound containing: from 25 to 50 mol % of a diamine unit, which contains an aromatic diamine unit represented by the following formula (I), in an amount of 50 mol % or more; from 25 to 50 mol % of a dicarboxylic acid unit, which contains a linear aliphatic dicarboxylic acid unit represented by the following formula (II-1) and/or an aromatic dicarboxylic acid unit represented by the following formula (II-2), in an amount in total of 50 mol % or more; and from 0.1 to 50 mol % of a constitutional unit represented by the following formula (III): wherein n represents an integer of from 2 to 18, Ar represents an arylene group, and R represents a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group.
    Type: Application
    Filed: December 24, 2010
    Publication date: November 29, 2012
    Inventors: Takafumi Oda, Ryoji Otaki, Shota Arakawa, Tsuneaki Masuda, Hiroyuki Matsushita, Ryuji Hasemi
  • Patent number: 8268955
    Abstract: Polyamide containing a compound which bears at least one hydroxy group and has chemical bonding by way of an amide group to the end of the polymer chain, process for preparing this polyamide, and also fibers, films, and moldings, comprising at least one such polyamide.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: September 18, 2012
    Assignee: BASF SE
    Inventors: Helmut Winterling, Jürgen Demeter, Kurt Krempel
  • Publication number: 20120165466
    Abstract: [Problem to be Solved] To provide a polyamide having a high melting point, which has excellent strength, toughness, and stability under heating. [Solution] This polyamide is obtained by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a pentamethylenediamine skeleton, wherein the polyamide has a cyclic amino end amount of 30 to 60? equivalents/g.
    Type: Application
    Filed: September 7, 2010
    Publication date: June 28, 2012
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Yu Nitto, Yasukazu Shikano, Shinji Ieda, Kazunori Terada, Masaaki Aramaki
  • Publication number: 20120095161
    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: Application
    Filed: July 8, 2010
    Publication date: April 19, 2012
    Applicant: EVONIK DEGUSSA GmbH
    Inventors: Andreas Pawlik, Martin Roos, Franz-Erich Baumann, Harald Haeger
  • Publication number: 20120094102
    Abstract: The invention relates to an optically transparent polymer film or extrudate product made of a polymer composition comprising a semi-crystalline polyamide having a melting temperature of at least 270° C. or a blend of the semi-crystalline polyamide (A) and a second polymer (B), and optionally at least one additive, wherein the semi-crystalline polyamide (A) is present in an amount of more than 50 wt. %, relative to the total weight of the polymer composition, the polymer composition in the optically transparent polymer film or extrudate product has a melting temperature (Tm-C) in the range of 270-340 ° C., and wherein the film or a part of the extrudate product has a haze of less than 12% and a light transmittance, of at least 88% measured with the method according to ASTM D1003A.
    Type: Application
    Filed: January 15, 2010
    Publication date: April 19, 2012
    Inventors: Alexander Antonius Maria Stroeks, Rudy Rulkens, Lee Sanghoon, Sidiki Tamim Peter
  • Publication number: 20120024577
    Abstract: The invention relates to a polymer film made of a polyamide composition comprising at least 80 weight percentage (wt. %) of a semi-crystalline semi-aromatic polyamide with a melting temperature (Tm) of at least 270° C., wherein the wt. % is relative to the total weight of the polymer composition, wherein the polymer film has an average coefficient of thermal expansion in plane in the temperature range of 20° C.-Tg, measured in plane with the method according to ASTM D969-08, of at most 40 ppm/K. The said film can be made from a polyamide moulding composition comprising said polyamide by film casting followed by axial stretching. The film has properties suitable for carrier films in flexible printed circuit boards.
    Type: Application
    Filed: January 15, 2010
    Publication date: February 2, 2012
    Inventors: Alexander Antonius Marie Stroeks, Guido Richard Struijk
  • Publication number: 20110288265
    Abstract: The invention relates to a plastic container or conduit for a cooling system, a heating system, an air intake system, an exhaust system, a pressure system or a fuel system, consisting of or comprising a part or a layer made of a thermoplastic polymer composition comprising a semi-crystalline semi-aromatic polyamide having a glass transition temperature (Tg) of at least 115° C.
    Type: Application
    Filed: January 21, 2010
    Publication date: November 24, 2011
    Inventors: Eric W. Vegte Van Der, Johannes Hoekstra
  • Patent number: 8044171
    Abstract: The invention relates to a polyamide molding material or copolyamide molding material and the use of such a polyamide molding material or copolyamide molding material for producing steam-sterilizable transparent moldings and extrudates. This polyamide molding material is characterized in that it comprises at least one copolyamide formed from 35-42 mol % of bis(4-amino-3-methylcyclohexyl)methane (MACM), 35-42 mol % of isophthalic acid (IPS) and 16-30 mol % of laurolactam (LC12). MACM may be replaced up to 50% by bis(4-aminocyclohexyl)-methane (PACM) and IPA up to 50% by terephthalic acid (TPA). The polyamide molding material may also be a blend of copolyamides or a blend of copolyamides with polyamide 12. The relative viscosity (RV) of the polyamide molding material or copolyamide molding material is in any case adjusted to a value which is greater than 1.45.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: October 25, 2011
    Assignee: EMS-Chemie AG
    Inventors: Friedrich Severin Buhler, Ralf Hala
  • Publication number: 20110171408
    Abstract: The present invention relates to a copolyamide comprising at least two units and corresponding to the following general formula: A/(diamine).(Cw diacid), in which: the diamine is a cycloaliphatic diamine, w represents the number of carbon atoms of the diacid, A is chosen from a unit obtained from an amino acid or from a lactam and a unit corresponding to the formula (Cx diamine).(Cy diacid), with x representing the number of carbon atoms of the diamine and y representing the number of carbon atoms of the diacid, and in which at least one of the monomers chosen from A and the Cw diacid is obtained, in all or part, from renewable starting materials according to Standard ASTM D6866. The invention also relates to a composition comprising this copolyamide and to the use of this copolyamide and of such a composition.
    Type: Application
    Filed: June 22, 2009
    Publication date: July 14, 2011
    Applicant: Arkema France
    Inventors: Benjamin Saillard, Philippe Blondel, Claire Michalowicz
  • Publication number: 20110165359
    Abstract: The invention relates to a polyamide comprising at least two units having the following general formula: X.Y where: X is an alkylaromatic diamine and Y is an aliphatic carboxylic diacid selected from dodecanedioic (C12) acid, tetradecanedioic (C14) acid, hexadecanedioic (C16) acid, characterized in that the carboxylic diacid comprises organic carbon from a renewable source determined according to standard ASTM D6866 The invention also relates to a composition comprising this polyamide and the use of said polyamide and of such a composition.
    Type: Application
    Filed: July 3, 2009
    Publication date: July 7, 2011
    Inventors: Guillaume Le, Julien Jouanneau, Benjamin Saillard
  • Publication number: 20110146907
    Abstract: A binding fiber having, as at least one first thermoplastic component, a copolyamide which has a relative viscosity of at least 1.50 (measured at 0.5% in m-cresol at 25° C.), a MVR of maximum 20 cm3/10 min at 190° C. and 2.16 kg load, a hydrophobicity of less than 7.2, a melting temperature lower than 105° C. in the water saturated condition and a higher melting temperature in the dry condition. The binding fiber can, on the one hand, be activated with hot steam at approximately ambient pressure during the manufacture of flat materials containing natural fibers, such as paper, cardboard, wood fiber boards, or fiber mats. The finished flat material can, on the other hand, be subjected to higher temperatures, and the copolyamide develops good bonding with respect to the cellulose fibers normally used in the indicated flat materials.
    Type: Application
    Filed: December 17, 2010
    Publication date: June 23, 2011
    Applicant: EMS-Patent AG
    Inventors: Klaus Bender, Gunther Schäch, Eberhard Kinkelin
  • Publication number: 20110130515
    Abstract: A molding produced by a layer-by layer process of selectively melting regions of a respective pulverulent layer via unfocused introduction of electromagnetic energy, using a polymer powder, where the powder has at least one thermoplastic random copolymer with an ISO 1133 MFR value of from 12 to 1 g/10 min.
    Type: Application
    Filed: February 10, 2011
    Publication date: June 2, 2011
    Applicant: DEGUSSA AG
    Inventors: Sylvia MONSHEIMER, Franz-Erich Baumann, Maik Grebe, Eva Von Der Bey
  • Publication number: 20110111154
    Abstract: The invention relates to a polyamide comprising at least one repeat unit corresponding to the general formulation: X·Y in which: X represents a cycloaliphatic diamine and Y represents an aliphatic dicarboxylic acid chosen from dodecanedioic (C12) acid, tetradecanedioic (C14) acid and hexadecanedioic (C16) acid, characterized in that said dicarboxylic acid comprises organic carbon of renewable origin, determined according to Standard ASTM D6866. The invention also relates to a composition comprising this polyamide and also to the use of this polyamide and of such a composition.
    Type: Application
    Filed: June 19, 2009
    Publication date: May 12, 2011
    Applicant: ARKEMA FRANCE
    Inventors: Guillaume LÊ, Julien Jouanneau, Benjamin Saillard
  • Publication number: 20110105683
    Abstract: Disclosed is a polyamide resin which is produced by the polycondensation of (A) pentamethylenediamin, (B) terephthalic acid and/or a derivative thereof, and (C) at least one member selected from adipic acid, sebacic acid, undecanedioic acid, dodecanedioic acid, isophthalic acid, 1,9-diaminononane, 1,10-diaminodecane, 1,12-diaminododecane, caprolactam, undecalactam, laurolactam, aminocaproic acid, 11-aminoundecanoic acid, 12-aminododecanoic acid, and derivatives of these compounds. In the polyamide resin, the ratio of a repeating unit derived from the component (C) is 10 to 50 wt % (inclusive) relative to the total weight of the polymer. A solution of the polyamide resin in 98% sulfuric acid, which contains the polyamide resin at a concentration of 0.01 g/ml, has a relative viscosity of 1.5 to 4.5 at 25° C.
    Type: Application
    Filed: June 29, 2009
    Publication date: May 5, 2011
    Inventors: Koya Kato, Masaru Akita, Hideo Matsuoka
  • Publication number: 20110014833
    Abstract: An object of the present invention is to provide a copolymerized polyether polyamide resin for coating on or for impregnation to a woven or knitted fabric, which resin further enhances slippage resistance and tear strength affecting the developing property of an airbag which is one of the automobile safety parts, as compared with those in the prior art. According to the present invention, a copolymerized polyether polyamide resin for coating on or for impregnation to a woven or knitted fabric is provided, characterized in that, elongation and elastic modulus of the copolymerized polyether polyamide resin are not less than 1000% and not more than 15 MPa, respectively.
    Type: Application
    Filed: October 16, 2008
    Publication date: January 20, 2011
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Hiroaki Hagiwara, Kenichiro Kano, Gaku Maruyama, Takahiro Hattori, Takashi Tsuruta
  • Patent number: 7776996
    Abstract: A continuous process for producing polyamides, their oligomers or mixtures thereof, if appropriate with further reaction products, comprises reaction of aminonitriles or dinitriles and diamines or mixtures thereof, if appropriate together with further polyamide-forming monomers and/or oligomers, with an aqueous medium composed of aqueous monomer and oligomer extracts obtained from polyamide production by extraction of the polymer with water in a reactor which has a vertical longitudinal axis and through which there is a flow substantially in the longitudinal direction wherein water and/or the aqueous medium are introduced into the reactor at two or more different locations along the vertical longitudinal axis, wherein the aqueous medium is introduced at one or more locations.
    Type: Grant
    Filed: February 8, 2005
    Date of Patent: August 17, 2010
    Assignee: BASF Aktiengesellschaft
    Inventors: Jürgen Deininger, Jürgen Demeter, Thilo Hahn, Gad Kory, Oliver Sötje, Peter Zehner