Heterocyclic-containing Reactant Other Than Cyclic Acid Anhydride As Sole Hetero Ring Patents (Class 528/341)
  • Patent number: 11781015
    Abstract: A heat-resistant polyamide composition includes a copolyamide and an anhydride-functional polymer. The copolyamide includes the reaction product of at least one lactam and a monomer mixture. The monomer mixture includes at least one C32-C40 dimer acid, and at least one C4-C12-diamine.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: October 10, 2023
    Assignee: BASF SE
    Inventors: Gijsbrecht Jacobus Maria Habraken, Patrick Spies
  • Patent number: 11414516
    Abstract: 1) Hydrocarbon-based copolymer comprising two end groups preceded by an ester function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, an exo-vinylene cyclocarbonate and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II) in which R0 is notably a methyl radical; and the number-average molecular mass Mn of which is between 400 and 100 000 g/mol. 2) Process for preparing said copolymer, comprising: (i) a step of heating a statistical bipolymer A chosen from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and then (ii) a step of heating the product formed, in the presence of a chain-transfer agent. 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 16, 2022
    Assignees: BOSTIK SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1
    Inventors: Guillaume Michaud, Stephane Fouquay, Frederic Simon, Sophie Guillaume, Jean-Francois Carpentier, Cyril Chauveau
  • Patent number: 11279786
    Abstract: 1) Hydrocarbon-based copolymer comprising two end groups preceded by an ether function and chosen from a 2-oxo-1,3-dioxolan-4-yl (or cyclocarbonate), a dithiocyclocarbonate, and a 2-oxo-1,3-dioxolen-4-yl, the main chain of which comprises units (I) and (II) in which R0 is notably a methyl radical; and the number-average molecular mass Mn of which is between 400 and 100 000 g/mol. 2) Process for preparing said copolymer, comprising: (i) a step of heating a statistical bipolymer A chosen from a poly(butadiene-isoprene), a poly(butadiene-myrcene) and a poly(butadiene-farnesene); and then (ii) a step of heating the product formed, in the presence of a chain-transfer agent. 3) Use as adhesive, as a mixture with an amine compound comprising at least two amine groups.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: March 22, 2022
    Assignees: BOSTIK SA, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE RENNES 1
    Inventors: Guillaume Michaud, Stephane Fouquay, Frederic Simon, Sophie Guillaume, Jean-Francois Carpentier, Cyril Chauveau
  • Patent number: 11247236
    Abstract: Methods and apparatuses for screening are provided. Embodiments include a screen basket apparatus for screening material, comprising a grid frame having a plurality of openings arranged in a lattice and a plurality of screening cartridge assemblies affixed to the grid frame to cover the respective openings of the grid frame. The screening cartridge assembly includes a case and a screen assembly fitted into the case, and may be affixed to a set of transversal member of the grid frame. The case may be formed of a single injection molded piece integrally formed by injection molding one of a polyurethane or a thermoset polymer. The screening elements together form a generally continuous screening surface across the exterior of the grid frame, which reduces blinding and is resistant to wear and tear.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: February 15, 2022
    Assignee: DERRICK CORPORATION
    Inventors: James R. Colgrove, Clifford C. Smith
  • Patent number: 11230808
    Abstract: A clothing for paper or pulp dewatering machines comprising monofilaments comprising a partially aromatic polyamide. A machine-side fabric layer is provided, and at least the machine-side fabric layer comprises monofilaments with a partially aromatic polyamide. The clothing comprises or is formed by longitudinal threads extending in a running direction and transverse threads extending transversely to the longitudinal threads, and at least some of the transverse filaments are monofilaments with a partially aromatic polyamide.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: January 25, 2022
    Assignee: Heimbach GmbH
    Inventor: Dirk Praschak
  • Patent number: 11213856
    Abstract: Methods and apparatuses for screening are provided. Embodiments include a screen basket apparatus for screening material, comprising a grid frame having a plurality of openings arranged in a lattice and a plurality of screening cartridge assemblies affixed to the grid frame to cover the respective openings of the grid frame. The screening cartridge assembly includes a case and a screen assembly fitted into the case, and may be affixed to a set of transversal member of the grid frame. The case may be an injection molded thermoplastic polyurethane or a thermoset polymer. The screening elements together form a generally continuous screening surface across an exterior portion of the grid frame.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: January 4, 2022
    Assignee: DERRICK CORPORATION
    Inventors: James R. Colgrove, Clifford C. Smith
  • Patent number: 11008423
    Abstract: The present invention discloses a modified bismaleimide resin and preparation method thereof; under conditions of N,N-dimethylformamide serving as a catalyst, biomass-based 2,5-furandicarboxylic acid and thionyl chloride are acylated to obtain 2,5-furan diformyl chloride, which is then dissolved in dichloromethane with a biomass-based eugenol; under tertiary amine conditions an esterification reaction takes place, and a fully biomass-based bis(4-allyl-2-methoxyphenyl)furan-2,5-dicarboxylic acid ester is thus obtained; same is used for preparing a modified bismaleimide resin.
    Type: Grant
    Filed: December 3, 2016
    Date of Patent: May 18, 2021
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Aijuan Gu, Jiatao Miao, Guozheng Liang, Li Yuan
  • Patent number: 9994677
    Abstract: Nylon 12 may be produced by dimerization of 6-carbon furan compounds into 12-carbon dimers, and conversion of the dimers into nylon 12. The 6-carbon furan compounds may be produced from biomass. Ester-aldehyde dimers and amino-ester dimers may be produced from the 6-carbon furan compounds as precursors for at least the production of nylon 12, and the components for producing the nylon 12 may be provided as a kit.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: June 12, 2018
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventor: Josef Peter Klein
  • Patent number: 9765186
    Abstract: Polyamide copolymers, and methods of making and using polyamide copolymers, having 2,5-furan dicarboxamide units are disclosed herein. Such polymers can be useful for engineering thermoplastics having advantageous physical and/or chemical properties.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: September 19, 2017
    Assignee: NDSU RESEARCH FOUNDATION
    Inventors: Bret Ja Chisholm, Satyabrata Samanta
  • Publication number: 20150044927
    Abstract: Disclosed herein are compositions and article made therefrom and processes of making them. The composition comprises a polymer, the polymer comprising a repeat unit of formula shown below: wherein the polymer is derived from an aromatic diamine comprising m-phenylene diamine, and an aromatic diacid or a derivative thereof comprising furan dicarboxylic acid or derivative thereof.
    Type: Application
    Filed: March 29, 2013
    Publication date: February 12, 2015
    Applicant: E I Du Pont DE Nemours and Company
    Inventors: Justin W. Chan, Fredrik Nederberg, Bhuma Rajagopalan, Sharlene Renee Williams, Michael W. Cobb
  • Publication number: 20150025200
    Abstract: A composition including a diamine compound and a dianhydride compound, wherein the diamine compound includes a first diamine compound represented by Chemical Formula 1, wherein, in Chemical Formula 1, T1 to T8 and L1 to L8 are the same as defined in the detailed description.
    Type: Application
    Filed: March 5, 2014
    Publication date: January 22, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Hee SOHN, Yoon Seok KO
  • Publication number: 20140357754
    Abstract: Disclosed are cement products, methods of forming cement using the cement product, and methods of using the cement product in orthopedic and dental applications. Generally, the disclosed cement product includes a first component and a second component. The first component comprises a polymerizable resin comprising ethylenic unsaturated double bond, a suitable glycidyl group and/or a suitable isocyanate group. The second component includes a compound comprising more than one type of amine selected from the group consisting of primary amine, secondary amines, tertiary amines and quaternary amines. Alternatively, the second component includes a compound comprising a suitable mercapto (SH—) group, a hindered amine or a dimethylthiotoluenediamine (DMTDA). Optionally, the cement product includes a filler and/or a bioactive component to promote bone formation.
    Type: Application
    Filed: August 15, 2014
    Publication date: December 4, 2014
    Inventors: Juchui Ray Lin, Edward S. Ahn, Brian M. Schlossberg
  • Publication number: 20140336351
    Abstract: The present invention concerns methods for removing sulfur from a fiber comprising the steps of: a) contacting never-dried sulfur-containing fiber in a yarn with an aqueous base having a pKa less than or equal to 11 to release at least a portion of said sulfur, said sulfur comprising, at least in part, sulfate anions and said yarn comprising fiber derived from polymer comprising imidazole groups; and b) rinsing said yarn to remove at least a portion of released sulfur.
    Type: Application
    Filed: January 11, 2012
    Publication date: November 13, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Steven R. Allen, Vlodek Gabara, Joseph Lenning Lowery, Steven Raymond Lustig, Christopher William Newton, David J. Rodini, Andrew J. Sitter
  • Publication number: 20140256885
    Abstract: Hair treatment compositions are disclosed comprising a ?-amino ester compound in a cosmetically acceptable vehicle, such as a spray or cream. In embodiments, the compounds include a polybutadiene moiety. Methods of treating hair with the compositions to impart volume, texture and definition are also disclosed.
    Type: Application
    Filed: March 25, 2014
    Publication date: September 11, 2014
    Applicant: Living Proof, Inc.
    Inventors: David Thomas Puerta, Susan Alice Thiell, Ronald P. McLaughlin, Daniel Griffith Anderson
  • Patent number: 8828268
    Abstract: The present invention pertains to the field of thermosetting or thermoset polymers mainly used as materials, coatings or adhesives. The invention more specifically relates to the use of specific molecules having associative groups including a nitrogen heterocycle as a hardener or co-hardener of thermosetting polymers.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: September 9, 2014
    Assignee: Arkema France
    Inventors: Bruno Van Hemelryck, Manuel Hidalgo
  • Publication number: 20140135449
    Abstract: The present invention relates to a novel polyamide synthesized from biosourced monomers. The novel polyamide comprises the repeating unit of formula I below: in which A represents a covalent bond or a divalent hydrocarbon-based group chosen from saturated or unsaturated aliphatics, saturated or unsaturated cycloaliphatics, aromatics comprising at least 5 carbon atoms, arylaliphatics and alkylaromatics; X represents a divalent group of formula II or III below: The present invention also relates to the process for preparing the said polyamide, to its uses, and to articles and compositions comprising the said polyamide.
    Type: Application
    Filed: July 5, 2012
    Publication date: May 15, 2014
    Applicant: RHODIA OPERATIONS
    Inventor: Stéphane Jeol
  • Publication number: 20140135455
    Abstract: The present disclosure relates to the preparation of ketal compounds from polyols and oxocarboxylates, and uses thereof.
    Type: Application
    Filed: January 20, 2014
    Publication date: May 15, 2014
    Applicant: SEGETIS, INC.
    Inventors: Sergey Selifonov, Adam Edward Goetz, Feng Jing
  • Publication number: 20140005353
    Abstract: Provided is a polyamide compound containing a plant-derived component which has high heat resistance and good moldability. The polyamide compound is represented by the following general formula (1) and has a weight-average molecular weight of 5,000 or more and 200,000 or less: in the formula (1), m represents 2 or 3, and each end of the polymer is one of a hydroxyl group and hydrogen.
    Type: Application
    Filed: March 1, 2012
    Publication date: January 2, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kie Yutaka, Toshinari Miura, Katsuhiro Matsuda, Takeshi Komuro
  • Publication number: 20130338334
    Abstract: Described are sulfonated polyoxadiazole polymers with a high degree of sulfonation and having improved properties such as increased flame retardancy and dyeability. The polymers are useful in articles such as films, fibrids, fibers for floc, and fibers for textile uses, and other articles made from engineering plastics.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: MICHAEL W. COBB, SHARLENE RENEE WILLIAMS
  • Patent number: 8609784
    Abstract: A UV-protective water-soluble polyaminoamide comprising UV-absorbing end groups, wherein the polyaminoamide absorbs ultraviolet light radiation having a wavelength of about 200 nm to about 420 nm, compositions comprising the UV-protective polyaminoamide and methods of treating substrates with the UV-protective polyaminoamide.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: December 17, 2013
    Assignee: Nalco Company
    Inventors: Yin Hessefort, Mingli Wei, Wayne Carlson
  • Publication number: 20130261270
    Abstract: The present invention relates to novel polyamines having secondary amino groups, a process for producing them, adducts of these polyamines and their uses. The polyamines can be prepared in a simple way from readily available reactants. They and their adducts have, in particular, a low viscosity and are suitable as constituent of polyurethane and polyurea compositions having excellent processability and high flexibility, and also constituent of epoxy resin compositions, especially coatings.
    Type: Application
    Filed: December 13, 2011
    Publication date: October 3, 2013
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Pierre-Andre Butikofer, Urs Burckhardt
  • Patent number: 8536281
    Abstract: The present invention relates to a method for synthesizing a supramolecular material comprising: 1—the reaction of at least one carboxylic diacid, or ester or chloride of such a diacid, with, on the one hand, at least one modifier compound bearing both reactive functional groups capable of reacting with the carboxylic acid, ester or acid chloride functional groups and associative groups capable of associating with one another by hydrogen bonds, in a molar ratio of the reactive functional groups to the carboxylic acid, ester or acid chloride functional groups of between 0.10 and 0.50, and, on the other hand, at least one polyamine, said reactions being carried out successively or simultaneously, and 2—the reaction of the polyamide obtained at the end of step 1 with urea. The present invention also relates to the resulting material, and also to the uses thereof.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: September 17, 2013
    Assignees: Arkema France, Centre National de la Recherche Scientifique CNRS
    Inventors: Damien Montarnal, Ludwick Leibler, Francois-Genes Tournilhac, Manuel Hidalgo
  • Patent number: 8445627
    Abstract: The invention provides new aliphatic diester-di-acid-containing PEA polymer compositions with significant improvement in hydrolytic degradation rates as compared to aliphatic di-acid-containing PEA polymers. The di-acids used in the invention PEA compositions include non-toxic fatty aliphatic homologs. These molecules inherently contain two-ester groups, which easily can be cleaved by biotic (enzymatic) and abiotic hydrolysis. Additional di-acid-type compounds useful for active polycondensation are ?,?-alkylene dicarboxylates composed of short aliphatic non toxic diols and di-acids. In addition, the invention PEA polymer compositions optionally can include a second monomer, such as a C-protected L-lysine-based monomer, to introduce additional chain flexibility into the polymer. The invention PEA polymer compositions are useful for delivery of bioactive agents when administered internally.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: May 21, 2013
    Assignee: Medivas, LLC
    Inventors: Ramaz Katsarava, Natia Mazanashvili, Zaza D. Gomurashvili, Turner Daniel Jenkins, Nino Mchedlishvili
  • Patent number: 8419990
    Abstract: Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized in that, in the process of preparing the wholly aromatic polyamide polymer, the aromatic diamine, aromatic diacid chloride and polymerization solvent put into the reactor 20 are agitated by an agitation device which is installed in the reactor 20 and consists of: (i) a rotor 3 driven by a motor 2 and having a plurality of pins 3a; and (ii) a stator 4 having a plurality of pins 4a, wherein spin speed of the rotor 3 is controlled to 10 to 100 times of both of feeding rates for the aromatic diacid chloride and the aromatic diamine in the polymerization solvent into the reactor and, at the same time, contact frequency between the pins 3a and the pins 4a is regulated within a range of 100 to 1,000 Hz.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: April 16, 2013
    Assignee: Kolon Industries, Inc.
    Inventors: In-Sik Han, Jae-Young Lee, Jae-Young Kim, Tae-Hak Park, So-Yeon Kwon
  • Publication number: 20120277402
    Abstract: A dinitro compound, a diamine compound, a polyamide (PA) derived therefrom, and an optoelectronic device are provided. The PA is fabricated by performing a polycondensation reaction using the foregoing diamine compound and a diacyl chloride compound shown in formula (3) as monomers, and thus represented by formula (4). In formulas (3) and (4), X represents an aromatic group or an aliphatic group. The resultant novel PA can be applied to an optoelectronic device. Since the foregoing compounds have carbazole and pyridine groups, the PA is characterized by excellent solubility, a high glass transition temperature, thermal stability, excellent optical properties, and acidichromism.
    Type: Application
    Filed: August 2, 2011
    Publication date: November 1, 2012
    Applicant: National Taiwan University of Science and Technology
    Inventor: Der-Jang Liaw
  • Publication number: 20120259087
    Abstract: The present invention concerns a compound of following formula (I): where: R1 is H or an alkyl group, A1 is a divalent straight-chain or branched alkylene radical, and A2 is a —O-A4-O— radical, A4 is a divalent straight-chain or branched alkylene radical.
    Type: Application
    Filed: November 19, 2010
    Publication date: October 11, 2012
    Inventors: Henri Cramail, Aurelie Boyer, Eric Cloutet, Benoit Gadenne, Alfos Carine
  • Publication number: 20120128782
    Abstract: Degradable polymers were synthesized that self-assemble with DNA to form particles that are effective for gene delivery. Small changes to polymer synthesis conditions, particle formulation conditions, and polymer structure provides significant changes to efficacy in a cell-type dependent manner. Polymers presented here are more effective than commercially available materials, such as LIPOFECTAMINE 2000™, FUGENE®, or polyethylenimine (PEI), for gene delivery to cancerous fibroblasts or human primary fibroblasts. The presently disclosed materials may be useful for cancer therapeutics and regenerative medicine.
    Type: Application
    Filed: May 17, 2010
    Publication date: May 24, 2012
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Jordan J. Green, Joel C. Sunshine, Nupura S. Bhise, Ron B. Shmueli, Stephany Y. Tzeng
  • Publication number: 20120123041
    Abstract: A polyamide, a method for manufacturing the polyamide and compositions that include the polymer are described. A high-viscosity polyamide obtained by the polymerization of diacid and diamine monomers in the presence of multifunctional and, optionally, monofunctional compounds are also described. The polyamide can be used in particular for the production of compositions intended, for example, for being molded or blown.
    Type: Application
    Filed: June 4, 2010
    Publication date: May 17, 2012
    Applicant: Rhodia Operations
    Inventors: Damien Zaher, Cesare Guaita
  • Publication number: 20120114677
    Abstract: Provided herein are compounds and related composition and methods that may be used to raise an antibody response to nicotinic compounds, in some embodiments.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 10, 2012
    Applicant: Selecta Biosciences, Inc.
    Inventors: Charles Zepp, Yun Gao
  • Publication number: 20120065358
    Abstract: Poly(?-amino esters) prepared from the conjugate addition of bis(secondary amines) or primary amines to a bis(acrylate ester) are described. Methods of preparing these polymers from commercially available starting materials are also provided. These tertiary amine-containing polymers are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems. Given the poly(amine) nature of these polymers, they are particularly suited for the delivery of polynucleotides. Nanoparticles containing polymer/polynucleotide complexes have been prepared. The inventive polymers may also be used to encapsulate other agents to be delivered. They are particularly useful in delivering labile agents given their ability to buffer the pH of their surroundings.
    Type: Application
    Filed: November 21, 2011
    Publication date: March 15, 2012
    Applicant: Massachusetts Institute of Technology
    Inventors: Robert S. Langer, David M. Lynn, David A. Putnam, Mansoor M. Amiji, Daniel G. Anderson
  • Publication number: 20120046395
    Abstract: The present invention relates to a bituminous composition comprising at least one bitumen and at least one polycondensate capable of forming a supramolecular assembly comprising one or more associative group(s) The present invention also relates to the use of such bituminous composition for the preparation of asphalt mixtures useful for the coating of rolling surfaces, for the preparation of water-proofing coatings, and the for the preparation of adhesive formulations.
    Type: Application
    Filed: November 3, 2011
    Publication date: February 23, 2012
    Applicant: CECA S.A.
    Inventors: Juan Antonio Gonzalez Leon, Jean-Philippe Gillet, Gilles Barreto, Manuel Hidalgo, Vincent Luca
  • Patent number: 7989579
    Abstract: A method for the production of a functionalized polytriazole polymer, particularly a poly(1,2,4-triazole)-polymer, includes the steps of (a) mixing a hydrazine salt, particularly hydrazine sulfate, with at least an aromatic and/or heteroaromatic dicarboxylic acid and/or at least a dicarboxylic acid derivate in polyphosphoric acid and if necessary further components for obtaining a solution; (b) heating the solution in a protective gas atmosphere for obtaining polyhydrazides and adding aromatic and/or heteroaromatic primary amines to the solution; and (c) precipitating a polymer. If necessary, neutralization in a basic solution may be carried out.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: August 2, 2011
    Assignee: GKSS-Forschungszentrum Geesthacht GmbH
    Inventors: Mariela Leticia Ponce, Dominique De Figueiredo Gome, Suzana Nunes, Volker Abetz
  • Publication number: 20110082264
    Abstract: The present disclosure relates to the preparation of ketal compounds from polyols and oxocarboxylates, and uses thereof.
    Type: Application
    Filed: April 16, 2009
    Publication date: April 7, 2011
    Applicant: SEGETIS, INC.
    Inventors: Sergey Selifonov, Adam Edward Goetz, Feng Jing
  • Publication number: 20110059280
    Abstract: The present invention relates to a method for synthesizing a supramolecular material comprising: 1—the reaction of at least one carboxylic diacid, or ester or chloride of such a diacid, with, on the one hand, at least one modifier compound bearing both reactive functional groups capable of reacting with the carboxylic acid, ester or acid chloride functional groups and associative groups capable of associating with one another by hydrogen bonds, in a molar ratio of the reactive functional groups to the carboxylic acid, ester or acid chloride functional groups of between 0.10 and 0.50, and, on the other hand, at least one polyamine, said reactions being carried out successively or simultaneously, and 2—the reaction of the polyamide obtained at the end of step 1 with urea. The present invention also relates to the resulting material, and also to the uses thereof.
    Type: Application
    Filed: May 5, 2009
    Publication date: March 10, 2011
    Inventors: Damien Montarnal, Ludwick Leibler, Francois-Genes Tournilhac, Manuel Hidalgo
  • Publication number: 20100228002
    Abstract: Provided are a self-crosslinking polyamic acid being a condensation reaction product of melamine-based material, an acid anhydride, and a diamine compound, a self-crosslinking polyimide being a condensation and imidization reaction product of melamine-based material, an acid anhydride, and a diamine compound, a method of preparing the self-crosslinking polyimide, and a self-crosslinking polyimide film including the self-crosslinking polyimide.
    Type: Application
    Filed: March 5, 2010
    Publication date: September 9, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-hee SOHN, Sang-mo KIM, Sang-heon HYUN, Jin-hae CHANG
  • Publication number: 20100036084
    Abstract: Poly(?-amino esters) prepared from the conjugate addition of bis(secondary amines) or primary amines to a bis(acrylate ester) are described. Methods of preparing these polymers from commercially available starting materials are also provided. These tertiary amine-containing polymers are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems. Given the poly(amine) nature of these polymers, they are particularly suited for the delivery of polynucleotides. Nanoparticles containing polymer/polynucleotide complexes have been prepared. The inventive polymers may also be used to encapsulate other agents to be delivered. They are particularly useful in delivering labile agents given their ability to buffer the pH of their surroundings.
    Type: Application
    Filed: July 23, 2009
    Publication date: February 11, 2010
    Applicant: Massachusetts Institute of Technology
    Inventors: Robert S. Langer, David M. Lynn, David Putnam, Mansoor M. Amiji, Daniel G. Anderson
  • Publication number: 20090291288
    Abstract: The invention relates to a molded part for bonding to metal or plastic substrates for use as a fastening element. Said molded part comprises a hot melt adhesive, said hot melt adhesive being based on polyamide, polyolefins, polyesters, polyacrylates or polystyrene. The molded part according to the invention is characterized in that the hot melt adhesive has a softening point between 100° and 250° C., a tensile stress at yield of between 1 and 35 MPa and the molded part consists entirely of the hot melt adhesive. The invention also relates to a method for bonding molded parts from hot melt adhesives to substrates by way of inductive heating.
    Type: Application
    Filed: May 29, 2009
    Publication date: November 26, 2009
    Applicant: Henkel AG & Co. KGaA
    Inventors: Siegfried Kopannia, Carsten Friese, Rainer Schoenfeld
  • Publication number: 20090235468
    Abstract: The instant invention relates to new polymers which enhance the wet slipping properties of textiles and thus reduce friction during the treatment process. The polymers are produced from the reaction product of diamines with a polyoxyalkylene glycidyl ether and dicarboxylic acids. Advantageously the instant polymers are used in aqueous emulsions which may contain further additives.
    Type: Application
    Filed: June 7, 2006
    Publication date: September 24, 2009
    Inventors: Qian Tang, Francis Palacin
  • Publication number: 20090139016
    Abstract: This invention concerns a flame-resistant garment having an outer shell fabric comprising 30 to 70 parts by weight of a polypyridobisimidazole fiber having an inherent viscosity of greater than 20 dl/g and 30 to 70 parts by weight of an aramid fiber.
    Type: Application
    Filed: December 13, 2006
    Publication date: June 4, 2009
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Reiyao Zhu, Richard Young
  • Patent number: 7504475
    Abstract: A process is presented for the production of high molecular weight polybenzimidazole, in two steps. Step one: provide a first reaction vessel and charge it with at least one aromatic hydrocarbon tetraamine, and a heterocyclic ring making up the dicarboxylic component. Heat the reactants under agitation. Terminate the agitation while continuing to heat the reaction mixture to about 230° C. while allowing the reaction mass to foam. Cool the reaction mass to a friable foamed mass. Crush the friable foamed mass to obtain a ground prepolymer. Step two; provide a second reaction vessel, transferring the ground prepolymer to it. A pressure wash of the first reaction vessel and the means for agitation to obtain a second ground prepolymer. Transfer the second ground prepolymer to the second reaction vessel. Heat the ground prepolymer and second ground prepolymer under agitation to a higher temperature than the first step until the desired degree of polymerization is achieved.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: March 17, 2009
    Assignee: PBI Performance Products, Inc.
    Inventors: Bobby G. Dawkins, J. Dean Baker, Rita H. Joiner, Karin M. Hudson
  • Publication number: 20090005286
    Abstract: The invention relates to the use of cationic polycondensation products as additives for fixing colours and/or inhibiting the running of colours, for washing products and washing aftertreatment products. Said cationic polycondensation products can be produced by the condensation of (A1) non-cyclic amines obtained by the reaction of (A1 a) mono(N,N-dialkylaminoalkyl)amines with (A1 b) bifunctional compounds selected from the group containing urea, thiourea, dialkyl carbonates, aliphatic and aromatic dicarboxylic acids, and aliphatic and aromatic diisocyanates, in a molar ratio 1.2:1 to 2.1:1, or (A2) mixtures of non-cyclic amines (A1) and cyclic amines (A3) in a molar ratio 10:1 to 1:10 with (B) bifunctional compounds selected from the group containing alkylene dihalogenides, dihalogen alkyl ethers, halomethyl oxiranes, and bisepoxides, in a molar ratio (B) to (A1) or (B) to (A2) from 0.6:1 to 1.3:1.
    Type: Application
    Filed: March 21, 2006
    Publication date: January 1, 2009
    Applicant: BASF Aktiengesellschaft
    Inventors: Jurgen Detering, Lidcay Herrera Taboada, Christian Hubert Weidl
  • Patent number: 7465781
    Abstract: A method of making polybenzobisoxazole containing polymer by use of a non-polybenzobisoxazole polymer, hydroxylating the polymer, forming a solidified polymer and heating the solidified polymer wherein ring closure occurs in the hydroxylated polymer.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: December 16, 2008
    Assignee: E.I. du Pont de Nemours & Company
    Inventor: Kiu-Seung Lee
  • Patent number: 7465782
    Abstract: A method of making polybenzobisoxazole containing fiber by use of a non-polybenzobisoxazole polymer, hydroxylating the polymer, forming the polymer into a fiber and heating the fiber wherein ring closure occurs in the hydroxylated polymer.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: December 16, 2008
    Assignee: E.I Du Pont De Nemours & Company
    Inventor: Kiu-Seung Lee
  • Publication number: 20080227947
    Abstract: Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized in that, in the process of preparing the wholly aromatic polyamide polymer, the aromatic diamine, aromatic diacid chlrodie and polymerization solvent put into the reactor 20 are agitated by an agitation device which is installed in the reactor 20 and consists of: (i) a rotor 3 driven by a motor 2 and having a plurality of pins 3a; and (ii) a stator 4 having a plurality of pins 4a, wherein spin speed of the rotor 3 is controlled to 10 to 100 times of both of feeding rates for the aromatic diacid chloride and the aromatic diamine in the polymerization solvent into the reactor and, at the same time, contact frequency between the pins 3a and the pins 4a is regulated within a range of 100 to 1,000 Hz.
    Type: Application
    Filed: July 5, 2006
    Publication date: September 18, 2008
    Inventors: In-Sik Han, Jae-Young Lee, Jae-Young Kim, Tae-Hak Park, So-Yeon Kwon
  • Patent number: 7408018
    Abstract: The invention provides elastomeric copolyester amides, elastomeric copolyester urethanes, and methods for making the same. The polymers are based on ?-amino acids and possess physical, chemical and biodegradation properties that render them suitable for use in the human body. The polymers are useful as carriers of drugs or other bioactive substances. The polymers can also be linked, intermixed, or a combination thereof, to one or more drugs. Additionally, the polymers can be used to coat stents, for example, to suppress restenosis. Furthermore, the biodegradation of the copolyester amides and copolyester urethanes allows for the delivery of essential ?-amino acids to sites in the body, for example, to facilitate wound repair of injured tissues.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: August 5, 2008
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Chih-Chang Chu, Ramaz Katsarava
  • Publication number: 20080182964
    Abstract: A method for the production of a functionalized polytriazole polymer, particularly a poly(1,2,4-triazole)-polymer, includes the steps of (a) mixing a hydrazine salt, particularly hydrazine sulfate, with at least an aromatic and/or heteroaromatic dicarboxylic acid and/or at least a dicarboxylic acid derivate in polyphosphoric acid and if necessary further components for obtaining a solution; (b) heating the solution in a protective gas atmosphere for obtaining polyhydrazides and adding aromatic and/or heteroaromatic primary amines to the solution; and (c) precipitating a polymer. If necessary, neutralization in a basic solution may be carried out.
    Type: Application
    Filed: January 30, 2008
    Publication date: July 31, 2008
    Applicant: GKSS-FORSCHUNGSZENTRUM GEESTHACHT GMBH
    Inventors: Mariela Leticia Ponce, Dominique De Figueiredo Gome, Suzana Nunes, Volker Abetz
  • Patent number: 7138483
    Abstract: The energy levels (HOMO, LUMO) of the conjugated polymer are tuned independently, so that an energy match on both sides of the device can be accomplished while keeping the emission color in the blue region. Such polymers can be formed by polymerization of a mixture of monomers. The mixture of the monomers contains at least one monomer having an electron-deficient group sandwiched by two aromatic hydrocarbon groups (“Monomer (I)”) and at least one hole transporting (“HT”) monomer. The mixture of monomers may also contain a solubility enhancement (“SE”) monomer and/or a Branching Monomer. Such polymers can be used in fabricating light emitting diodes to achieve some of the best device performance to date including high efficiency and blue color purity.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: November 21, 2006
    Assignees: E.I. du Pont de Nemours and Company, DuPont Displays, Inc.
    Inventors: Hailiang Wang, Frank P. Uckert, Sunghan Kim
  • Patent number: 7064176
    Abstract: The invention relates to novel polyhydroxyamide compounds that, in the form of their oxazoles, ane suited as a coating material, particularly for electronic components. The invention also relates to a method for producing these novel compounds and to the use thereof.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: June 20, 2006
    Assignee: Infineon Technologies AG
    Inventors: Marcus Halik, Klaus Lowack, Recai Sezi, Andreas Walter
  • Patent number: 7060783
    Abstract: The present invention provides a diamine compound polymer and a method for producing the diamine compound polymer. The diamine compound polymer of the present invention has a condensed aromatic group represented by the following formulae (1-1) and (1-2). A represents a structure represented by the following formula (II-1). Y and Z represent divalent hydrocarbon groups. B and B? each independently represents a group represented by —O—(Y—O)m-H or —O—(Y—O)m-CO-Z-CO—OR?, wherein R? is a hydrogen atom, an aralkyl group, an aryl group, or an aralkyl group. m represents an integer from 1 to 5; and p represents an integer from 5 to 5000. Ar represents a monovalent aromatic group. X represents a divalent condensed aromatic group. T represents a divalent linear hydrocarbon group having 1 to 6 carbon atoms or a divalent branched hydrocarbon group having 2 to 10 carbon atoms. k and n each represents an integer of 0 or 1.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: June 13, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Mieko Seki, Hirohito Yoneyama, Daisuke Okuda, Hidekazu Hirose, Tadayoshi Ozaki, Takeshi Agata, Toru Ishii, Hiroaki Moriyama, Kiyokazu Mashimo, Katsuhiro Sato
  • Patent number: 7056988
    Abstract: A polymer compound contains a cyclic structure represented by the following general formula (1): wherein each of X and Y represent an alkylene group or the like, where X and Y may be the same or different, Z represents a bond derived from an alkylene group or the like having from 1 to 20 carbon atoms, which is bonded to a group represented by Y belonging to another cyclic structure, m represents 0 or an integer of 1 or more and n represents an integer of 2 or more, provided that the integer represented by m is independent in respective repeating units, and a total number of the bond represented by Z is 1 or more.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 6, 2006
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Kenji Yao