Heterocyclic Reactant Or A Reactant Which Contains A Nitrogen Atom Bonded Directly To Another Nitrogen Atom Patents (Class 528/327)
  • Patent number: 10358522
    Abstract: The present invention relates to a supramolecular biodegradable polymer comprising a quadruple hydrogen bonding unit (abbreviated herein as “4H-unit”), a biodegradable backbone and hard blocks and a process for preparing such a supramolecular biodegradable polymer. The supramolecular polymer is specifically suitable for biodegradable articles such as biomedical implants that need high strength and/or elasticity, e.g. medical implants in the cardio-vascular field.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: July 23, 2019
    Assignee: SUPRAPOLIX B.V.
    Inventors: Tristan Mes, Anton Willem Bosman
  • Patent number: 9415352
    Abstract: A membrane comprising polybenzimidazole and aromatic polyester wherein said aromatic polyester is removed is disclosed. The membrane is used for a process of deacidification.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: August 16, 2016
    Assignee: Council of Scientific & Industrial Research
    Inventors: Ulhas Kanhaiyalal Kharul, Ramchandra Vitthal Gadre, Vithal Venkatrao Jogdand, Yogesh Jayasing Chendake
  • Patent number: 9188860
    Abstract: Disclosed is a method for producing polyamide, wherein a diimidazolide compound represented by the general formula (1) shown below is reacted with a diamine compound represented by the general formula (2) shown below. The present invention provides a method for producing a chlorine-free high molecular weight alkali-soluble polyamide by simple process.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: November 17, 2015
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Tomoyuki Yuba, Masao Tomikawa
  • Publication number: 20150080454
    Abstract: A unit structure-type pharmaceutical composition includes at least one nucleic acid, such as siRNA, electrostatically bound to at least one block copolymer having a cationic polyamino acid segment and a hydrophilic polymer chain segment. The negative charge(s) of the nucleic acid are counterbalanced, at least substantially, by the positive charge(s) of the cationic polyamino acid segment such that the pharmaceutical composition is electrically neutral or nearly electrically neutral. Further, the nucleic acid is covered with the hydrophilic polymer chain segment(s). The at least one block copolymer thereby improves the blood retention capability of the nucleic acid(s).
    Type: Application
    Filed: April 30, 2013
    Publication date: March 19, 2015
    Applicants: NANOCARRIER CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Kazunori Kataoka, Kanjiro Miyata, Nobuhiro Nishiyama, Kensuke Osada, Sumiyo Watanabe, Shigeto Fukushima, Hiroyuki Chaya, Hiroyasu Takemoto, Yasuki Kato
  • Patent number: 8951630
    Abstract: The invention relates to a novel ultra-thin hydrophobic and oleophobic layer, formed by self-assembly on a solid substrate surface, of compounds of the general formula A-B in which A represents a group of the formula in which Z represents C or N+, X represents C—H or C-L, L being an electron-attracting group selected from F, Cl, Br, I, CF3, NO2 and N(CH3)3+, Y represents H or CH3, or Y forms a 5- or 6-atom heterocycle with X, T represents NH, CO, CONH or NH2+U?, U? being a soluble anion, and B represents an unsubstituted C1-C20 linear aliphatic alkyl group, or a C1-C20 linear aliphatic alkyl group partially or completely substituted with F, and a method of preparing this layer and its use as an epilame or barrier film.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: February 10, 2015
    Assignees: Rolex S.A., Susos, AG
    Inventors: Samuele Tosatti, Stefan Zürcher
  • Patent number: 8911775
    Abstract: Disclosed is a pH-sensitive block copolymer that forms polyionic complex micelles. The block copolymer is prepared by copolymerization of (a) a polyethylene glycol compound, (b) a poly(amino acid) compound, and (c) a heterocyclic alkyl amine compound having the ability to induce the formation of ionic complexes. Further disclosed is a drug or protein carrier using the block copolymer.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: December 16, 2014
    Assignee: Sungkyunkwan University Foundation for Corporate
    Inventors: Doo Sung Lee, Bong Sup Kim, Jung Hee Lee, Guanghui Gao
  • Publication number: 20140350127
    Abstract: The present disclosure provides colorant compounds and methods of isolation of the colorant compounds derived from a reaction of genipin and an amine. The colorant compositions comprise purified compounds (e.g., a purified polymer or a purified dimer) obtained from multiple fractioning by chromatography of the reaction resulting material. The purified polymer or dimer can be used as a colorant by itself or in combination with another colorant for imparting color to a food, a drug, a cosmetic, a medical device, and textile products.
    Type: Application
    Filed: May 22, 2014
    Publication date: November 27, 2014
    Applicant: ECOFLORA S.A.S.
    Inventors: Esteban Vargas CANO, Luis Fernando Echeverri Lopez, Juan Fernando Gil Romero, Edwin Andrés Correa Garcés, Sandra Patricia Zapata Porras
  • Publication number: 20140323679
    Abstract: To provide a polymer material having properties that allow the polymer material to replace a polyimide and a polyamide synthesized from a petroleum raw material, said polymer material being synthesized from a raw material derived from natural molecules. [Solution] This polymer material is obtained by polymerizing a polymer raw material comprising a dimer of 4-amino cinnamic acid or a dimer of a 4-amino cinnamic acid derivative, which are natural molecules, wherein the carboxyl group is protected by an alkyl chain. The TGA curve of a polyamide acid (PAA-1) and a polyimide (PI-1) according to the present invention is shown in FIG. 5.
    Type: Application
    Filed: November 13, 2012
    Publication date: October 30, 2014
    Applicant: JAPAN ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Tatsuo Kaneko, Akio Miyazato, Seiji Tateyama, Phruetchika Suvannasara, Yuuki Oka
  • Publication number: 20140323685
    Abstract: The cross-linked polyzwitterion/anion for the removal of strontium from aqueous solutions is a polyzwitterion having the following structure: and the corresponding anion formed by treating the polyzwitterion with a base, e.g., sodium hydroxide. The cross-linked polyzwitterion/anion (CPZA) was prepared using Butler's cyclopolymerization protocol. The CPZA resin was found to have a very good adsorption capacity for Sr2+ ions at low concentrations. The relatively strong rapid initial adsorption of 83% Sr2+ ions was followed by slower adsorption of the remaining 17%, which was described by an intraparticle diffusion model. The adsorption followed the Lagergren second-order kinetic model, and Temkin as well as Freundlich isotherm models. The negative ?Gs and ?H ensured the spontaneity and the exothermic nature of the adsorption process. The excellent adsorption and desorption efficiencies implied the efficacy of the resin in removing (as well as recovering) the metal ions from aqueous solution.
    Type: Application
    Filed: April 29, 2013
    Publication date: October 30, 2014
    Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS
    Inventors: SHAIKH ASROF ALI, SHAMSUDDEEN ABDULLAHI HALADU
  • Patent number: 8853305
    Abstract: A method for producing a setting retarder for hydrate-forming binders, wherein a) a first reactant A, comprising an amino acid and/or an amino acid derivative, is reacted with b) a second reactant C, including an amine-free carboxylic acid and/or an amine-free carboxylic acid derivative, to form a reaction product, characterized in that the reaction is carried out at a pH value of 7.5-11.5 and the pH value is held constant in the specified range of 7.5-11.5 during the reaction. In order to hold the pH value constant in the specified range and to avoid fluctuations, in one process step an aqueous solution of reactant A is prepared and a pH of 7.5-11.5, preferably 8-11, in particular 8.5-10.5, is set by adding a base.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: October 7, 2014
    Assignee: Sika Technology AG
    Inventors: Christina Hampel, Joerg Zimmermann
  • Publication number: 20140275469
    Abstract: Amine functional polyamides comprise amine and ammonium groups along the polymer chain. Amine functional polyamides can be used as pharmaceutical agents and in pharmaceutical compositions. The amine functional polyamides are particularly useful in the treatment or prevention of mucositis and infection, specifically oral mucositis, surgical site infection, and lung infection associated with cystic fibrosis.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: GENZYME CORPORATION
    Inventors: Pradeep DHAL, Kanwen Yang, Robert J. Miller, S. Randall Holmes-Farley
  • Patent number: 8829154
    Abstract: The present invention provides a simple, non-destructive and versatile method that enables layer-by-layer (LbL) assembly to be performed on virtually any substrate. A novel catechol-functionalized polymer which adsorbs to virtually all surfaces and can serve as a platform for LbL assembly in a surface-independent fashion is also provided.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: September 9, 2014
    Assignee: Northwestern University
    Inventors: Phillip B. Messersmith, Haeshin Lee, Yuhan Lee, Zhongqiang Liu, Lesley Hamming
  • Publication number: 20140066571
    Abstract: A polyimide precursor comprising a repeating unit represented by the following chemical formula (1): in which A is a tetravalent group having at least one aliphatic six-membered ring and no aromatic ring in the chemical structure, and B is a divalent group having at least one amide bond and an aromatic ring in the chemical structure; or A is an aliphatic tetravalent group and B is a divalent group having at least one chemical structure represented by the following chemical formula (2) in the chemical structure: and X1 and X2 are each independently hydrogen, a C1-6 alkyl group or a C3-9 alkylsilyl group.
    Type: Application
    Filed: March 12, 2012
    Publication date: March 6, 2014
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Ryoichi Takasawa, Takuya Oka, Yukinori Kohama, Miharu Nakagawa, Keiji Iwamoto, Kenji Hirotsu, Yoshiyuki Watanabe
  • Patent number: 8592604
    Abstract: The invention provides a thiazolothiazole compound represented by the following Formula (I). In Formula (I), Ar1 represents a substituted or unsubstituted aromatic group; R1 represents a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n represents an integer of 0 or 1. The invention further provides a thiazolothiazole polymer having the thiazolothiazole compound as a polymerization unit thereof.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: November 26, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Hidekazu Hirose, Takeshi Agata, Katsuhiro Sato, Kazuaki Sato, Yoshihiro Ohba
  • Publication number: 20130289169
    Abstract: A method for producing a setting retarder for hydrate-forming binders, wherein a) a first reactant A, comprising an amino acid and/or an amino acid derivative, is reacted with b) a second reactant C, including an amine-free carboxylic acid and/or an amine-free carboxylic acid derivative, to form a reaction product, characterized in that the reaction is carried out at a pH value of 7.5-11.5 and the pH value is held constant in the specified range of 7.5-11.5 during the reaction. In order to hold the pH value constant in the specified range and to avoid fluctuations, in one process step an aqueous solution of reactant A is prepared and a pH of 7.5-11.5, preferably 8-11, in particular 8.5-10.5, is set by adding a base.
    Type: Application
    Filed: March 8, 2012
    Publication date: October 31, 2013
    Applicant: SIKA TECHNOLOGY AG
    Inventors: Christina Hampel, Joerg Zimmermann
  • Patent number: 8551568
    Abstract: The present invention provides a simple, non-destructive and versatile method that enables layer-by-layer (LbL) assembly to be performed on virtually any substrate. A novel catechol-functionalized polymer which adsorbs to virtually all surfaces and can serve as a platform for LbL assembly in a surface-independent fashion is also provided.
    Type: Grant
    Filed: September 18, 2012
    Date of Patent: October 8, 2013
    Assignee: Northwestern University
    Inventors: Phillip B. Messersmith, Haeshin Lee, Yuhan Lee, Zhongqiang Liu, Lesley Hamming
  • Patent number: 8420771
    Abstract: Provided are a new pH-sensitive co-polymer prepared from polyethylene oxide and a method of preparing the same. The polyethylene oxide co-polymer includes repeating units expressed by the Chemical Formulas 1 and 2, and further includes at least one of repeating units expressed by the Chemical Formulas 3 through 6.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: April 16, 2013
    Inventors: Jung-Ahn Kim, Hyun-Oh Yoo
  • Patent number: 8309132
    Abstract: Novel biodegradable polyesteramides derived from optionally functionalized diacids and optionally functionalized diamines or from compounds having both optionally functionalized acid and optionally functionalized amine moieties, their preparation, and absorbable surgical articles fabricated therefrom, such as monofilament and multifilament sutures, films, sheets, plates, clips, staples, pins, screws, stents, stent coatings, packaging materials, and other implantable surgical devices, and the like, are described herein.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: November 13, 2012
    Assignee: Bezwada Biomedical, LLC
    Inventor: Rao S. Bezwada
  • Patent number: 8293867
    Abstract: The present invention provides a simple, non-destructive and versatile method that enables layer-by-layer (LbL) assembly to be performed on virtually any substrate. A catechol-functionalized polymer which adsorbs to virtually all surfaces and can serve as a platform for LbL assembly in a surface-independent fashion is also provided.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: October 23, 2012
    Assignee: Northwestern University
    Inventors: Phillip B. Messersmith, Haeshin Lee, Yuhan Lee, Zhongqiang Liu, Lesley Hamming
  • Patent number: 8288504
    Abstract: The present invention is directed to a method for preparing a cyclic guanidine comprising reacting (i) a cyanamide, (ii) a polyamine, and (iii) a weak acid. The present invention is also directed to a coating composition comprising the cyclic guanidine.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: October 16, 2012
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Steven R. Zawacky, Charles R. Hickenboth, Richard F. Karabin, Gregory J. McCollum, Thomas C. Moriarity
  • Patent number: 8247524
    Abstract: The present invention relates to a supramolecular polymer comprising quadruple hydrogen bonding units within the polymer backbone, wherein at least a monomer comprising a 4H-unit is incorporated in the polymer backbone via at least two reactive groups up to four reactive groups, provided that the 4H-units are not covalently incorporated in the polymer backbone through one or more silicon-carbon bonds. The invention also relates to processes for preparing such supramolecular polymers and their use in personal care applications, surface coatings, imaging technologies, biomedical applications, (themo)reversible coatings, adhesive and sealing compositions and as thickening agents, gelling agents and binders.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: August 21, 2012
    Assignee: Suprapolix B.V.
    Inventors: Hendricus Marie Janssen, Gaby Maria Leonarda Van Gemert, Egbert Willem Meijer, Anton Willem Bosman
  • Patent number: 8241545
    Abstract: The present disclosure provides a method for preparing polylactic acid and its products using a twin-screw extruder, comprising the step of mixing carbon dioxide adducts of carbene and lactide, and obtaining polylactic acid and its products via reactive extrusion using a twin-screw extruder.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: August 14, 2012
    Assignee: Nanjing Universty of Technology
    Inventors: Zhenjiang Li, Pingkai Ouyang, He Huang
  • Patent number: 8202946
    Abstract: A variety of graft copolymers can be formed sodium poly(aspartate) with a wide variety of monomers in an aqueous medium by the use of grafting method in the presence of radical initiator at a temperature of from about five degrees Centigrade to about 100 degrees Centigrade. Graft copolymers at high conversion with molecular weight up to millions can be prepared using this method.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: June 19, 2012
    Assignee: NanoChem Solutions, Inc.
    Inventors: Damodar R. Patil, Laiduien G. Fan, Joseph C. Fan, Jiangping Yu
  • Publication number: 20120094994
    Abstract: The present invention relates to compounds of formula I and II, which are functionalized amino acids, and polymers formed from the same. Polymers formed from the functionalized amino acids are expected to have controllable degradation profiles, enabling them to release an active component over a desired time range. The polymers are also expected to be useful in a variety of medical applications.
    Type: Application
    Filed: December 24, 2011
    Publication date: April 19, 2012
    Applicant: BEZWADA BIOMEDICAL, LLC
    Inventor: Rao S. Bezwada
  • Publication number: 20110286959
    Abstract: Random three- and four-amino acid copolymers having lengths of 14-, 35- and 50-amino acid residues are provided. Fifty-mers of FEAK were effective inhibitors of MBP 85-99- or proteolipid protein (PLP) 40-60-specific HLA-DR-2-restricted T cell clones. These copolymers efficiently suppressed the mouse disease EAE, which was induced in a susceptible SJL/J (H-2s) strain of mice with either whole spinal cord homogenate (WSCH) or with the encephalitogenic epitope PLP 139-151 (SEQ ID NO:4). YFAK 50-mer having a molar ratio of about Y 0.8:F 0.2 inhibited binding of biotinylated MBP 85-99 epitope to HLA-DR-2 molecules more efficiently than either unlabeled MBP 85-99 or Copaxone®. YFAK and FAK copolymers efficiently suppressed EAE induced in SJL/J (H-2S) mice with the encephalitogenic epitope PLP 139-151.
    Type: Application
    Filed: July 12, 2011
    Publication date: November 24, 2011
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Jack L. Strominger, Masha Fridkis-Hareli
  • Publication number: 20110150978
    Abstract: Disclosed is a pH-sensitive block copolymer that forms polyionic complex micelles. The block copolymer is prepared by copolymerization of (a) a polyethylene glycol compound, (b) a poly(amino acid) compound, and (c) a heterocyclic alkyl amine compound having the ability to induce the formation of ionic complexes. Further disclosed is a drug or protein carrier using the block copolymer.
    Type: Application
    Filed: July 23, 2010
    Publication date: June 23, 2011
    Applicant: SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION
    Inventors: Doo Sung LEE, Bong Sup KIM, Jung Hee LEE, Guanghui GAO
  • Publication number: 20110152493
    Abstract: This disclosure provides a method of making polylactic acid using carbon dioxide adducts of carbenes, wherein the adducts of carbenes have a structure represented by formula (I) as follows:
    Type: Application
    Filed: February 24, 2011
    Publication date: June 23, 2011
    Inventors: Zhenjiang Li, Pingkai Ouyang, He Huang
  • Publication number: 20110152448
    Abstract: Disclosed are epoxy resins exhibiting a highly favorable combination of tensile strength and elongation with respect to prior art epoxy systems. The elastomeric epoxy resin systems of the invention are prepared utilizing a curing agent containing at least one monoprimary amine, and are particularly useful in applications such as, for example, castings, potting, composites, crack sealing, coatings, adhesives, roofing materials, flooring or reinforced membranes.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 23, 2011
    Inventors: Larry Steven Corley, Carlton E. Ash
  • Publication number: 20110114275
    Abstract: The invention relates to a polyamine-epihalohydrin resin precursor comprising N-halo-hydrin groups attached to a polyamine backbone, and 3-hydroxyazetidinium groups attached to a polyamine backbone, said resin precursor having a solids content in the range of from 25 to 95 wt. % and a molar ratio of N-halohydrin groups to 3-hydroxyazetidinium groups in the range of from 1:2 to 100:1, as determined by 13C-NMR. The invention also relates to a process for producing the polyamine-epihalohydrin resin precursor, a process for producing a composition comprising a polyamine-epihalohydrin resin, and a process for the production of paper.
    Type: Application
    Filed: June 29, 2009
    Publication date: May 19, 2011
    Inventor: Marek Gorzynski
  • Publication number: 20110097666
    Abstract: Lithographic printing plate precursors can have an imageable layer that includes a polymeric binder having an acid number of 40 meq/g KOH or more, at least 3 weight % of recurring units derived from one or more N-alkoxymethyl (alkyl)acrylamides or alkoxymethyl(alkyl)acrylates, at least 2 weight % of recurring units having pendant 1H-tetrazole groups, and at least 10 weight % of recurring units having pendant cyano groups. The use of such polymeric binders provides good bakeability and chemical solvent resistance, especially for positive-working precursors.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 28, 2011
    Inventors: Celin Savariar-Hauck, Gerhard Hauck
  • Publication number: 20110091407
    Abstract: The invention relates to a static copolymer of linear polyethylenimine that comprises two monomer units of the following formulas I and II, in which R1 is a hydrogen atom or a C1-C6 alkyl radical, R2 is a hydrogen atom, a C1-C6 alkyl, aryl or aralkyl group, wherein the alkyl group is a C1-C6 one, n is a number between 1 and 99% of the total monomers, m is a number between 1 and 99% of the total monomers, and advantageously m+n=100%. The invention also relates to complexes of this copolymer with a nucleic acid, and to the use thereof in in vivo, in vitro or ex vivo gene transfection.
    Type: Application
    Filed: March 4, 2009
    Publication date: April 21, 2011
    Inventors: Hervé Cheradame, Mathieu Sassatelli, Philippe Guegan, Patrick Midoux, Chantal Pichon
  • Publication number: 20110076307
    Abstract: The present invention is directed to a design of and a method to synthesize polycations for gene (DNA and RNA) delivery. According to this design, the polycations (also said cationic polymers) are formed by polymerization of endogenous monomers bearing sufficient amino groups through degradable bonds with linker molecules or with themselves. The amino group-bearing monomers are those naturally existing in or nontoxic to human body. The linker molecules are those which are not only degradable to nontoxic fragments but also able to release the amino group-bearing monomers in their native state upon degradation. Some examples for the endogenous amino group-bearing monomers are spermine, spermidine, serine or N,N-dimethyl serine, and histidine. Examples for the degradable chemical bonds formed between the amino group-bearing monomers are carbamate, imine, amide, carbonate, and ester.
    Type: Application
    Filed: July 26, 2010
    Publication date: March 31, 2011
    Inventors: Tuo Jin, Zixiu Du
  • Publication number: 20110060076
    Abstract: An epoxy resin comprising at least one epoxy amide such as at least one of a glycidyl ether amide and a glycidyl ester amide derived from at least one seed oil based alkanolamide; wherein the seed oil based alkanolamide is derived from the reaction of (i) at least one of a fatty acid ester, a fatty acid and a fatty acid triglyceride; and (ii) at least one alkanolamine; and a process for preparing such epoxy resin. An epoxy resin composition can be prepared comprising the epoxy amide above and one or more epoxy resins other than the epoxy amide. A curable epoxy resin composition can also be made from the above epoxy resin composition which contains at least one curing agent and/or at least one curing catalyst.
    Type: Application
    Filed: May 18, 2009
    Publication date: March 10, 2011
    Inventors: Robert E. Hefner, JR., Jim D. Earls, Jerry E. White
  • Publication number: 20110034593
    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: August 3, 2010
    Publication date: February 10, 2011
    Applicant: CECA S.A.
    Inventors: Juan Antonio Gonzalez Leon, Jean-Philippe Gillet, Gilles Barreto, Manuel Hidalgo, Vincent Luca
  • Publication number: 20100331514
    Abstract: Provided are a new pH-sensitive co-polymer prepared from polyethylene oxide and a method of preparing the same. The polyethylene oxide co-polymer includes repeating units expressed by the Chemical Formulas 1 and 2, and further includes at least one of repeating units expressed by the Chemical Formulas 3 through 6.
    Type: Application
    Filed: February 26, 2009
    Publication date: December 30, 2010
    Applicants: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, GENIC CO., LTD.
    Inventors: Jung-Ahn Kim, Hyun-Oh Yoo
  • Publication number: 20100298504
    Abstract: Disclosed are an amphiphilic polymer, its synthesis and uses thereof. The polymer has a hydrocarbon backbone with —COOH side groups. It further has first aliphatic moieties with a main chain of about 3 to about 20 carbon atoms and 0 to about 3 heteroatoms, and second aliphatic moieties that have a main chain of about 3 to about 80 carbon atoms and about 2 to about 40 heteroatoms. The second aliphatic moieties have a copolymerisable group. In the synthesis a maleic anhydride polymer of formula (I) where n is an integer from about 10 to about 10000 and R1 is H or methyl, is reacted with a monofunctional compound with an alkyl chain of about 3 to about 20 carbon atoms and 0 to about 2 heteroatoms, and with an at least bifunctional compound with an alkyl chain of about 3 to about 80 carbon atoms and 0 to about 40 heteroatoms. The functional group of the monofunctional compound and one functional group of the at least bifunctional compound can form a linkage with an anhydride.
    Type: Application
    Filed: September 19, 2008
    Publication date: November 25, 2010
    Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH
    Inventors: Dominik Janczewski, Nikodem Tomczak, Yin Win Khin, Mingyong Han, Julius Vancso
  • Patent number: 7838622
    Abstract: This invention is to provide a dope that has excellent formability and can be formed into a fiber, a film, pulp-shaped particles and the like by a wet method. This invention is also to provide a process for the production of a fiber excellent in heat resistance, strength and elastic modulus. This invention provides a dope and a process for the production of a fiber from the dope, the dope including a polyamide and a basic solvent, the polyamide containing a recurring unit of the following formula (I), wherein Ar1 represents at least one substituent selected from the group consisting of and having an inherent viscosity of 1.0 or more, the dope has a polyamide concentration of over 10% by weight but not more than 25% by weight and exhibits optical anisotropy at 50° C.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: November 23, 2010
    Assignees: Teijin Limited, Teijin Techno Products Limited
    Inventors: Masayuki Chokai, Anton Peter De Weijer, Hiroaki Kuwahara, Dennis Wilbers
  • Patent number: 7838621
    Abstract: The present invention relates to a supramolecular polymer comprising quadruple hydrogen bonding units within the polymer backbone, wherein at least a monomer comprising a 4H-unit is incorporated in the polymer backbone via at least two reactive groups up to four reactive groups, provided that the 4H-units are not covalently incorporated in the polymer backbone through one or more silicon-carbon bonds. The invention also relates to processes for preparing such supramolecular polymers and their use in personal care applications, surface coatings, imaging technologies, biomedical applications, (thermo)reversible coatings, adhesive and sealing compositions and as thickening agents, gelling agents and binders.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: November 23, 2010
    Assignee: Suprapolix B.V.
    Inventors: Hendricus Marie Janssen, Gaby Maria Leonarda Van Gemert, Egbert Willem Meijer, Anton Willem Bosman
  • Publication number: 20100292432
    Abstract: The present invention provides block copolymers comprising hydrophobic moieties in a cationic complexing block, methods of preparing the same, and intermediates thereto. The compounds are useful in a variety of applications such as the assembly of micellar polyion complexes. The invention further provides methods of using said compounds and compositions thereof.
    Type: Application
    Filed: April 29, 2010
    Publication date: November 18, 2010
    Applicant: Intezyne Technologies, Incorporated
    Inventors: Gregoire Cardoen, Kevin N. Sill, Janni Mirosevich, Habib Skaff
  • Patent number: 7834130
    Abstract: A single-stage melt polymerization process is demonstrated for production of a polybenzimidazole which comprises the following steps. First, a high intensity reactor having a means for controlling agitation and rate of, atmosphere, and temperature is provided. Second, the high intensity reactor is degassed and filled with nitrogen. Third, a tetraminobiphenyl (TAB), compound A and an isophthalic acid (IPA), compound B are provided. Fourth, the high intensity reactor is charged with compounds A and B. Fifth, compound A and compound B are reacted under high intensity agitation in an absence of catalyst, to temperature of between 340° C. to 430° C. to produce a polybenzimidazole having an IV of at least 0.45 and a plugging value of greater than or equal to 1.0 g/cm2.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: November 16, 2010
    Assignee: PBI Performance Products, Inc.
    Inventors: Bobby G. Dawkins, J. Dean Baker
  • Patent number: 7834131
    Abstract: The present invention relates to an asymmetric polymer film, in particular based on polazoles, a method for the production of the same and its use. The polyazole-based asymmetric polymer film according to the invention has a smooth and a rough side and enables, on account of its asymmetric structure, rapid and homogeneous doping with acids to form a proton-conducting membrane. The polyazole-based asymmetric polymer film according to the invention can be used in diverse ways on account of its excellent chemical, thermal and mechanical properties and is particularly suitable for the production of polymer electrolyte membranes (PEM) for so-called PEM fuel cells.
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: November 16, 2010
    Assignee: BASF Fuel Cell GmbH
    Inventors: Joachim Petersen, Jochen Baurmeister, Oemer Uensal, Frauke Jordt, Joachim Kiefer
  • Publication number: 20100285404
    Abstract: Disclosed is a method for producing polyamide, wherein a diimidazolide compound represented by the general formula (1) shown below is reacted with a diamine compound represented by the general formula (2) shown below. The present invention provides a method for producing a chlorine-free high molecular weight alkali-soluble polyamide by simple process.
    Type: Application
    Filed: September 4, 2008
    Publication date: November 11, 2010
    Inventors: Tomoyuki Yuba, Masao Tomikawa
  • Publication number: 20100280217
    Abstract: A method for preparing a functionalized polymer, the method comprising the steps of preparing a reactive polymer and reacting the reactive polymer with a heterocyclic nitrile compound.
    Type: Application
    Filed: October 14, 2008
    Publication date: November 4, 2010
    Inventors: Steven Luo, Ryouji Tanaka, Kouichirou Tani
  • Publication number: 20100267918
    Abstract: A method for producing an amino group-containing conjugated diene polymer includes polymerizing a conjugated diene compound in the presence of a reaction product of 1,3-bis(diphenylethenyl)benzene or a derivative thereof and an organolithium compound to obtain a conjugated diene polymer, and reacting the conjugated diene polymer with a modifier.
    Type: Application
    Filed: October 1, 2008
    Publication date: October 21, 2010
    Applicant: JSR CORPORATION
    Inventors: Satoshi Kura, Toshiyuki Hayakawa, Kazuhiro Iso, Susumu Komiyama
  • Publication number: 20100234556
    Abstract: Polymers made by polymerization or cyclization condensation of a fluorine-containing polymerizable monomer represented by the formula [1] wherein “a” represents an integer from 1 to 4. The monomer contains a plurality of polymerizable amines in the molecule and at the same time one or more hexafluoroisopropyl group(s). With this structure it can be used as an effective polymerizable monomer, which can exhibit water repellency, oil repellency, low water absorptive property, heat resistance, weather resistance, corrosion resistance, transparency, photosensitivity, low refractive index property, low dielectric property, etc., and it can be used for advanced polymer material fields.
    Type: Application
    Filed: May 26, 2010
    Publication date: September 16, 2010
    Applicant: CENTRAL GLASS COMPANY, LIMITED
    Inventors: Hiroshi SAEGUSA, Satoru Narizuka, Kazuhiko Maeda
  • Patent number: 7795372
    Abstract: The present invention relates to a novel polymer film and also polymer fibers and polymers based on polyazoles, which can, owing to its excellent chemical and thermal properties, be used for a variety of purposes and is particularly useful as film or membrane for gas purification and filtration.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: September 14, 2010
    Assignee: BASF Fuel Cell GmbH
    Inventors: Joachim Kiefer, Gordon Calundann, Oemer Uensal, Jochen Baurmeister, Frauke Jordt
  • Publication number: 20100215944
    Abstract: A thermal lithographic printing plate overcoat composition comprising (a) a water-soluble polymeric dye having an absorption band between about 300 and about 600 nm; and (b) micro-particles or nano-particles is provided. A negative-working thermal lithographic printing plate comprising (a) a hydrophilic substrate; (b) a near infrared imaging layer disposed on the hydrophilic substrate; and (c) an overcoat layer disposed on the imaging layer, said overcoat layer comprising a water-soluble polymeric dye having an absorption band between about 300 and about 600 nm; and micro-particles or nano-particles is also provided. Finally, a water-soluble polymeric dye having an absorption band between about 300 and about 600 nm is provided.
    Type: Application
    Filed: July 24, 2008
    Publication date: August 26, 2010
    Inventors: My T. Nguyen, Marc-Andre Locas
  • 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
  • Publication number: 20100168374
    Abstract: Disclosed herein is a novel functional diamine compound having a dendron structure, polyamic acid which is produced using functional diamine, aromatic cyclic diamine, aliphatic cyclic acid dianhydride, and aromatic cyclic acid dianhydride, polyimide which is produced by imidizing polyamic acid, and an LC alignment film produced using polyimide. Even if the diamine compound is used in a small amount, it is possible to realize a high pretilt angle, thus the pretilt angle is easily controlled. Therefore, it can be used to produce an LC alignment film using a twisted nematic (TN) mode, in which the pretilt angle of liquid crystal is low, and a vertically aligned (VA) mode, which requires a high pretilt angle of about 90°.
    Type: Application
    Filed: November 23, 2009
    Publication date: July 1, 2010
    Applicant: Cheil Industries Inc.
    Inventors: Jae Min Oh, Moo Young Lee, Bum Jin Lee, O. Bum Kwon, Won Seok Dong, Yusuke Tsuda
  • Publication number: 20100154376
    Abstract: Inherently colored polyester polymers with controlled branching include a chromophoric co-monomer in their backbone. The chromophoric co-monomer may be a carboxyl terminated chromophoric co-monomer. such as metallo-phthalocyanine tetracarboxylic acid. The inherently colored polyester polymer may be melt-spun into a filament or fiber.
    Type: Application
    Filed: August 8, 2006
    Publication date: June 24, 2010
    Applicant: RELIANCE INDUSTRIES LTD
    Inventors: Vikas Madhusudan Nadkarni, Subbiah Venkatachalam, Jayprakash Vinayak Labde, Kirti Gajanan Patil, Milind Satish Vaidya