From Ether, Metal Alcoholate, Or Alcohol Group-containing Carboxylic Acid; Or From A Derivative Of A Carboxylic Acid Which Derivative Contains An Ether, Metal Alcoholate, Or Alcohol Group Patents (Class 528/361)
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Publication number: 20120208297Abstract: A composition for use as an assay reagent comprises a solid support comprising a member of a signal producing system and a coating of a synthetic copolymer. The synthetic copolymer comprises a first polymerized monomer comprising a pendant moiety comprising a reactive functionality or a derivative of a reactive functionality and a second polymerized monomer comprising a pendant moiety comprising at least 1 carbon atoms and at least 2 heteroatoms. In some embodiments the copolymer comprises a polyethylenic backbone comprising the pendant moiety comprising a reactive functionality or a derivative of a reactive functionality and the pendant moiety comprising at least 1 carbon atom and at least 2 heteroatoms.Type: ApplicationFiled: April 9, 2012Publication date: August 16, 2012Applicant: SIEMENS HEALTHCARE DIAGNOSTICS INC.Inventors: Bhalchandra Lele, Pratap Singh, Raphael Bartz, Jason A. Kellogg
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Patent number: 8236914Abstract: A mechanochromic material includes a polymer having a backbone containing a mechanophore.Type: GrantFiled: January 26, 2010Date of Patent: August 7, 2012Assignee: Board of Trust of the University of IllinoisInventors: Stephanie L. Potisek, Douglas A. Davis, Scott R. White, Nancy R. Sottos, Jeffrey S. Moore
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Publication number: 20120196990Abstract: Systems and methods are provided for filtering a fluid containing nanoparticles. The systems and methods generally include introducing a stream of the nanoparticle-containing fluid into a holding vessel, and extracting at least a part of a nanoparticle-containing fluid accumulated in the holding vessel. The extracted nanoparticle-containing fluid is passed through a filtration module to separate a nanoparticle-containing retentate from a permeate, and the retentate is returned to the vessel. The filtration cycle can be repeated until a desired concentration of the nanoparticles is achieved in the holding vessel. In many embodiments, the generation of the nanoparticle-containing fluid and its filtration are performed concurrently.Type: ApplicationFiled: January 25, 2012Publication date: August 2, 2012Applicant: CERULEAN PHARMA INC.Inventors: J. Michael Ramstack, John Podobinski
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Publication number: 20120195850Abstract: The invention provides method for sequestering or trapping L-lactate in or near a tumor cell comprising contacting an isolated polymer of D-lactic acid (PDLA) or an equivalent, derivative or analog thereof with the tumor cell so that the PDLA binds L-lactate in or near the cell and thereby sequestering or trapping L-lactate in or near the tumor cells.Type: ApplicationFiled: January 27, 2012Publication date: August 2, 2012Inventors: Joel S. Goldberg, Joe Brice Weinberg
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Publication number: 20120190813Abstract: To provide an easily-manufactured liquid-crystalline polymer having high thermal conductivity, as well as a molded article that is formed of the liquid crystalline polymer and has a property of being highly mechanical. A liquid-crystalline polymer is used that is formed by polymerizing monomers having an asymmetrical molecular structure, in which the enthalpy of fusion ?H measured by way of DSC (Differential Scanning calorimetry) is greater than or equal to 2.5 J/g (joules per gram) and less than or equal to 10 J/g, and the inherent viscosity (I.V.) is greater than or equal to 5 dl/g and less than or equal to 7 dl/g. It is preferable for the monomer having asymmetrical molecular structure to be at least one selected from a group consisting of 4-hydroxybenzoic acid (HBA), 6-hydroxy-2-naphthoic acid (HNA), N-acetyl-p-aminophenol (APAP), and 4-hydroxy-4?-biphenylcarboxylic acid (HBCA).Type: ApplicationFiled: September 3, 2010Publication date: July 26, 2012Applicant: POLYPLASTICS CO., LTD.Inventor: Yoshiaki Taguchi
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Publication number: 20120181529Abstract: Provided is a layered structure having a first electrode, a second electrode, a light emitting layer or a charge separation layer located between the first electrode and the second electrode, and a layer located between the light emitting layer or the charge separation layer and the first electrode and containing a polymer having a repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups. Also provided is a polymer having, as the repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups, one or more repeating units selected from four specific repeating units containing an aromatic group. The layered structure of the present invention provides an electroluminescent device capable of emitting light at a high luminance and a photoelectric conversion device having a high photoelectric conversion efficiency.Type: ApplicationFiled: September 28, 2010Publication date: July 19, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Masanobu Tanaka, Kenta Tanaka, Ken Sakakibara, Hideyuki Higashimura, Rui Ishikawa
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Publication number: 20120184706Abstract: The present invention relates to a method for synthesizing polyesters or copolyesters having a mean molar mass in mass MW, greater than 10000, by means of a direct polyesterification reaction between a diacid, diester, hydroxyacid, or hydroxyester and a diol, or between hydroxyacids or hydroxyesters, said method being characterized in that said polyesterification reaction is carried out at a temperature of 60 to 150° C. at atmospheric pressure in a reaction medium including at least one acidic ionic liquid consisting of an anion and a cation, the electrical charges of which balance each other out, and wherein at least the cation is a strong acid according to the Bronsted definition, or comprises a grouping that is a strong acid according to the Bronsted definition.Type: ApplicationFiled: July 28, 2010Publication date: July 19, 2012Inventors: Alain Fradet, Hervé Lefebvre, Jean-Pierre Bazureau, Ludovic Paquin, Daniel Carrie
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Patent number: 8221965Abstract: Antireflective coating compositions and related polymers are disclosed.Type: GrantFiled: July 8, 2008Date of Patent: July 17, 2012Assignee: AZ Electronic Materials USA Corp.Inventors: Huirong Yao, Zhong Xiang, Jianhui Shan, Salem Mullen, Hengpeng Wu
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Publication number: 20120172566Abstract: A metal cyanide complex catalyst and its preparation and application are disclosed. The formula of this catalyst is M1a[M2(CN)bL1c]d(X)m(L2)n·xSu·yL3·zH2O and its preparation method comprises: (A) adjusting pH of a mixed solution I? of L3, M3e[M2(CN)bL1c]f, de-ionized water I, alcohol and/or ether solvent to less than 7.0, and adding it into a mixed solution II? of M1(X)g salt, Su or Su precursor, de-ionized water II, stirring for reaction under 20° C.-120° C. for 0.5-200 hours, separating and drying to obtain a solid product; and (B) repeatedly dispersing the solid into an anhydrous organic solvent containing L2 to form a slurry, distilling, separating and drying to obtain the metal cyanide complex catalyst. The catalyst is useful in preparing polyethers, polycarbonates and polyesters by homopolymerization of epoxides, or copolymerization of epoxides with carbon dioxide or anhydrides.Type: ApplicationFiled: December 13, 2010Publication date: July 5, 2012Applicant: ZHEJIANG UniversityInventors: Xinghong Zhang, Guorong Qi, Binyang Du, Renjian Wei, Xueke Sun
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Publication number: 20120165500Abstract: Embodiments of the invention relate generally to processes for the production and processing of polyhydroxyalkanoates (PHA) from carbon sources. In several embodiments, PHAs are produced at high efficiencies from carbon-containing gases through the utilization of a regenerative polymerization system.Type: ApplicationFiled: August 27, 2010Publication date: June 28, 2012Applicant: NEWLIGHT TECHNOLOGIES, LLCInventors: Markus Herrema, Kenton Kimmel, Evan Creelman
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Publication number: 20120165499Abstract: Provided is a copolymer containing a repeating unit represented by the following formula (1): wherein R1 represents an alkanediyl group, a heteroalkanediyl group, a cycloalkanediyl group, a heterocycloalkanediyl group, an arylene group, a heteroarylene group, or an alkylarylene group; R2 represents a hydrogen atom, an alkyl group, a heteroalkyl group, a cycloalkyl group, a heterocycloalkyl group, an aryl group, a heteroaryl group, an alkoxy group, or an alkylalkoxy group; R3, R4, R5 and R6 each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms; n1 represents an integer from 0 to 10; and n2 represents an integer from 0 to 10. The copolymer, when incorporated into a resist composition, can provide a satisfactory resist pattern with high sensitivity, high resolution, high etching resistance and a reduced amount of outgas.Type: ApplicationFiled: December 20, 2011Publication date: June 28, 2012Applicant: Korea Kumho Petrochemical Co., LtdInventors: Jung-Hoon OH, Joon Hee Han, Tae Gon Kim, Hyun Sang Joo
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Publication number: 20120157560Abstract: The present disclosure relates to the preparation of ketal compounds from anhydropentitols and oxocarboxylates; derivatives, homopolymers, and copolymers thereof; and various compositions, formulations, and articles derived therefrom.Type: ApplicationFiled: May 28, 2010Publication date: June 21, 2012Applicant: XL Terra, Inc.Inventors: Sergey Selifonov, Feng Jing, Ning Zhou
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Publication number: 20120149864Abstract: Poly(orthoester) polymers, and methods of making and using such poly(orthoester) polymers are provided. The poly(orthoester) polymers can be useful for applications including, for example, medical devices and pharmaceutical compositions. In a preferred embodiment, the poly(orthoester) polymers are biodegradable.Type: ApplicationFiled: February 14, 2012Publication date: June 14, 2012Applicant: Medtronics, Inc.Inventors: Julie A. Alkatout, Michael Eric Benz, Randall V. Sparer
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Publication number: 20120142581Abstract: PLGA, PLA and PGA polymers which have crystallinity resulting from the presence of long chain alkyl groups in terminal units. The polymers are particularly useful for drug delivery.Type: ApplicationFiled: February 14, 2012Publication date: June 7, 2012Applicant: Landec CorporationInventors: DAVID TAFT, STELIOS TZANNIS, WEI-GUO DAI, SANDRA OTTENSMANN, STEVEN BITLER, QIANG ZHENG, ADAM BELL
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Publication number: 20120136135Abstract: A biopolyester which is poly(3-hydroxyalkanoate) or poly(3-hydroxyalkanoate) copolymer and has a reduced calcium content. It has improved thermal stability due to the reduced calcium content.Type: ApplicationFiled: January 27, 2012Publication date: May 31, 2012Applicant: RIKENInventors: Hideki ABE, Yoshiharu DOI
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Publication number: 20120136070Abstract: The present disclosure relates to the preparation of ketal compounds from anhydropentitols and oxocarboxylates; derivatives, homopolymers, and copolymers thereof; and various compositions, formulations, and articles derived therefrom.Type: ApplicationFiled: January 6, 2012Publication date: May 31, 2012Applicant: XL TERRA, INC.Inventors: Sergey Selifonov, Feng Jing, Ning Zhou
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Publication number: 20120130007Abstract: A polymer obtainable by free-radical polymerization of one or more oxetane-based macromonomers and optionally one or more further, free-radically polymerizable comonomers, the oxetane-based macromonomer(s) being obtainable by cationic ring-opening polymerization of at least one hydroxyoxetane with a terminally ethylenically unsaturated starter molecule free of allyl groups in a molar ratio (hydroxyoxetane(s):starter molecule) of (100:1) to (1:1) in the presence of at least one suitable catalyst. Processes for preparing the polymer and the use thereof as an additive in coating compositions and plastics.Type: ApplicationFiled: May 3, 2010Publication date: May 24, 2012Applicant: BYK-CHemie GmbHInventors: Wojciech Jaunky, Albert Frank, Alfred Bubat, Jürgen Omeis, Petra Della Valentina, Bernd Göbelt
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Patent number: 8178628Abstract: The present invention relates to an aliphatic polyester resin composition having excellent hydrolysis resistance, added to an aliphatic polyester resin (A), a reactive monomer (B) (e.g. a monocarbodiimide compound) and a reactive polymer (C) (e.g. a polycarbodiimide compound).Type: GrantFiled: June 4, 2007Date of Patent: May 15, 2012Assignee: NEC CorporationInventors: Shukichi Tanaka, Yukihiro Kiuchi, Masatoshi Iji
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Patent number: 8168728Abstract: A polycarbonate diol comprising repeating units represented by the following formula (A) and a terminal hydroxy group. It is characterized in that 60-100 mol % of the repeating units represented by the formula (A) are repeating units represented by the following formula (B) or (C), the amount of the repeating units represented by the formula (B) is 10-50 mol %, excluding 50 mol %, based on the total amount of the repeating units represented by the formula (A), and the polycarbonate diol has a terminal primary OH ratio of 95-98.5%. (A) (In the formula, R represents a C2-12 divalent aliphatic or alicyclic hydrocarbon.Type: GrantFiled: November 4, 2008Date of Patent: May 1, 2012Assignee: Asahi Kasei Chemicals CorporationInventors: Tetsuo Masubuchi, Eizaburo Ueno
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Patent number: 8167957Abstract: An agent and method for treating biodegradable synthetic yarns fabricated from a polymer comprising lactic acid as a main component, which enable improved lubricity, cohesion, etc. to be so imparted to the biodegradable synthetic yarns that the yarns can be prevented from fuzzing and breaking at every step from spinning to down-stream step, especially at a false twisting step and improved in terms of bulkiness, providing yarns having improved mechanical properties in a stable manner. The agent of the invention comprises 0.1 to 30 weight % of a specific functional agent, and a lubricant and a surfactant in the total amount of 70 weight % or greater, and has a friction coefficient in the range of 0.04 to 0.35.Type: GrantFiled: September 13, 2010Date of Patent: May 1, 2012Assignee: Takemoto Yushi Kabushiki KaishaInventor: Hiroshi Yamakita
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Patent number: 8158742Abstract: Deoxybenzoin-phosphonate and other copolymer compounds, compositions and related methods.Type: GrantFiled: January 3, 2011Date of Patent: April 17, 2012Assignee: University of MassachusettsInventors: Todd Emrick, Thangamani Ranganathan, E. Bryan Coughlin, Richard J. Farris, Joseph Zilberman
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Patent number: 8158748Abstract: The invention provides hetero-functional compound compounds useful in a variety of adhesive applications. More particularly, the invention provides compounds bearing at least one electron rich olefinic bond and at least one electron poor olefinic bond, wherein the two olefinic bonds are separated by a C3 to about C500 aliphatic, cycloaliphatic, or aromatic spacer.Type: GrantFiled: August 13, 2009Date of Patent: April 17, 2012Assignee: Designer Molecules, Inc.Inventors: Stephen M. Dershem, Farhad G Mizori
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Publication number: 20120077946Abstract: Disclosed is a cationically polymerizable resin composition which includes an oxetane-ring-containing vinyl ether compound (A) and/or an alicyclic-epoxy-containing vinyl ether compound (B); and an oligomer or polymer (C) having a molecular weight of 500 or more, being liquid at 0° C., and containing at least one of structures represented by following Formulae (1a) to (1f), wherein Rx represents hydrogen atom or methyl group; R1 to R3 each independently represent a hydrocarbon group having 1 to 5 carbon atoms; “a” is an integer of from 0 to 5; and “b” is 1 or 2. This cationically polymerizable resin composition has a low viscosity, is easy to work, cures extremely rapidly upon irradiation with light, and can give a cured object excellent in flexibility, thermal stability, and bendability after heat treatment.Type: ApplicationFiled: May 20, 2010Publication date: March 29, 2012Inventors: Yoshinori Funaki, Kiyoharu Tsutsumi, Tomoaki Mahiko, Naoko Araki
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Publication number: 20120070593Abstract: Partially hydrogenated bisphenol-A based polymers. Coating compositions for food or beverage containers and medical devices, including a partially hydrogenated bisphenol-A based polymer. Food or beverage containers and medical devices coated with partially hydrogenated bisphenol-A based polymers. Food or beverage containers and medical devices made from partially hydrogenated bisphenol-A based polymers.Type: ApplicationFiled: September 17, 2010Publication date: March 22, 2012Inventors: William B. Carlson, Gregory D. Phelan, Phillip A. Sullivan
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Patent number: 8137687Abstract: N-substituted 4-aza-caprolactone biodegradable polymers, including derivatives thereof, useful for making implantable medical devices and coatings therefore are provided. The medical devices and coatings of the present invention can also be used for in situ controlled release drug delivery and are useful for treating or preventing medical conditions such as restenosis, aneurisms and vulnerable plaque.Type: GrantFiled: August 9, 2006Date of Patent: March 20, 2012Assignee: Medtronic Vascular, Inc.Inventors: Mingfei Chen, Peiwen Cheng, Kishore Udipi
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Publication number: 20120061086Abstract: This invention relates to oil and gas production, more specifically, to the methods of producing polymer emulsion for downhole operations and mixing degradable (hydrolysable) polymer emulsion with the treatment fluid.Type: ApplicationFiled: January 30, 2009Publication date: March 15, 2012Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Dean Willberg, Christopher N. Fredd, Vadim Kamilievich Khlestkin, Denis Olegovich Menshikov
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Publication number: 20120065357Abstract: A resin for use in toner including a polyhydroxycarboxylic acid skeleton in an amount of 50 to 80% by mass. The resin is soluble in organic solvents and has a glass transition temperature of 60° C. or more.Type: ApplicationFiled: August 10, 2011Publication date: March 15, 2012Inventors: Yoshitaka YAMAUCHI, Taichi Nemoto, Daisuke Asahina, Susumu Chiba, Chiaki Tanaka
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Publication number: 20120065342Abstract: A method for producing a crystallized polyester comprises the crystallization step of applying a shear and/or a pressure to a polyester selected from an aliphatic polyester and a polyalkylene terephthalate at a temperature of (Tm?70° C.) to (Tm+20° C.), where Tm is a melting point of the polyester, thereby converting the polyester into a state having a crystallinity of 10% or more and fluidity.Type: ApplicationFiled: June 17, 2010Publication date: March 15, 2012Applicant: Toray Industries, Inc.Inventors: Mitsushige Hamaguchi, Takuma Naotsuka, Yoshitake Takahashi, Toru Takahashi, Hiroyuki Ome
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Patent number: 8129477Abstract: Implantable medical devices and methods including blends of biodegradable polymers are disclosed herein. The polymer blends include a continuous phase in which the polymer chains are oriented along an axis. Such polymer blends can exhibit properties such as improved toughness that can be desirable for use in medical devices.Type: GrantFiled: August 3, 2009Date of Patent: March 6, 2012Assignee: Medtronic, Inc.Inventors: Jianbin Zhang, SuPing Lyu, James Louis Schley
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Publication number: 20120045831Abstract: The present invention relates to a bisphosphonates and synthetic polymeric carriers to form a sustained release system. The present invention also provides a method for preparing a sustained release system, comprising activation of the synthetic polymeric carriers and the cross linking reaction. The present invention further provides methods for enhancing stem cell differentiation into osteogenic lineage and chondrogenic lineage, which comprise culturing a population of stem cells in specific micro-environments.Type: ApplicationFiled: August 20, 2010Publication date: February 23, 2012Applicant: KAOHSIUNG MEDICAL UNIVERSITYInventors: Mei-Ling Ho, Je-Ken Chang, Rajalakshmanan Eswaramoorthy, Shun-Cheng Wu
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Patent number: 8119733Abstract: A polymer network, comprises an interfacially polymerized reaction product derived from a surfactant monomer.Type: GrantFiled: March 28, 2007Date of Patent: February 21, 2012Assignee: Rhodia OperationsInventor: Leo Zhaoqing Liu
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Publication number: 20120041084Abstract: A film of a carboxylated polymer of formula (I): wherein the sum of x, y and z is an integer from 10 to 10,000 and degree of hydrolysis is 0.05 or greater provides gas separation materials in which the degree of hydrolysis may be used to tune the selectivity of the gases to an optimal required range. Such films may be prepared by casting a film of a polymer of formula (II): wherein n is an integer from 10 to 10,000, and hydrolyzing all or a portion of the —CN groups to form —COOH groups.Type: ApplicationFiled: March 10, 2010Publication date: February 16, 2012Inventors: Naiying Du, Michael D. Guiver, Gilles P. Robertson, Jingshe Song
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Publication number: 20120035343Abstract: A method is provided for functionalizing nanoscale fibers including reacting a plurality of nanoscale fibers with at least one epoxide monomer to chemically bond the at least one epoxide monomer to surfaces of the nanoscale fibers to form functionalized nanoscale fibers. Functionalized nanoscale fibers and nanoscale fiber films are also provided.Type: ApplicationFiled: October 14, 2011Publication date: February 9, 2012Applicant: FLORIDA STATE UNIVERSITY RESEARCH FOUNDATIONInventors: Shiren Wang, Zhiyong Liang, Ben Wang, Chun Zhang
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Patent number: 8105504Abstract: Organic materials which possess outstanding stability to oxidative, thermal or light-induced degradation comprise as stabilizers at least one compound of the formula (I) wherein the general symbols are as defined in claim 1. The compounds of formula I are especially useful as stabilizers for protecting polymers and lubricants against oxidative, thermal or light-induced degradation and as scavengers for oxidized developer in color photographic material.Type: GrantFiled: August 22, 2005Date of Patent: January 31, 2012Assignee: BASF SEInventors: Michèle Gerster, Peter Nesvadba
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Patent number: 8101707Abstract: A process for manufacturing polymers of glycerin and hydroxyl fatty acids, for example, polyglycerol polyricinoleates, which mix a polyglycerol with a hydroxyl fatty acid directly to form a reaction mixture, and then heat the reaction mixture to a temperature sufficient to cause it to polymerize through an esterification mechanism until the reaction mixture reaches a desired acid value.Type: GrantFiled: August 17, 2006Date of Patent: January 24, 2012Assignee: Stepan CompanyInventor: Richard R. Tenore
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Publication number: 20120015034Abstract: The present invention relates to compositions comprising polymers whose solubility characteristics can be changed by incubation and particularly poly (hydroxyalkyl(meth) acrylamide mono/di-lactate interpolymers. Another aspect of this invention is the application of such temperature sensitive polymers as release systems of biologically active compounds. The polymers of the present invention comprise monomers, which have modifiable functionality. The functionality of the monomers can for example be modified by the presence of hydrolysable groups. The modification is effected by the incubation, leading to a change of the water solubility characteristics of the polymer. The polymers used in the present invention contain hydrolysable chemical groups. As a result the polymer's solution characteristics, specifically its lower critical solution temperature (LCST), change upon incubation.Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Applicant: Universiteit UtrechtInventors: Wilhelmus Everhardus HENNINK, Cornelis Franciscus Van Nostrum, Marinus Jacob Van Steenbergen, Osamu Soga, Cristianne Johanna Derdinand Rijcken
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Patent number: 8097685Abstract: The present invention is directed to a hyperbranched-polyester comprising at least one kind of a structural unit selected from an aromatic oxycarbonyl unit (P), aromatic and/or aliphatic dioxy units (Q), and an aromatic dicarboxy unit (R), and a trifunctional or higher polyfunctional organic residue (B), wherein the content of B is within a range from 7.5 to 50 mol % based on entire monomers constituting the hyperbranched-polyester. The present invention provides a hyperbranched-polyester which can remarkably improve thin-wall flowability, stiffness and gas barrier property by blending with a thermoplastic resin, and a thermoplastic resin composition blended with the same.Type: GrantFiled: March 30, 2007Date of Patent: January 17, 2012Assignee: TORAY Industries, Inc.Inventors: Koji Tachikawa, Makito Yokoe, Mitsushige Hamaguchi, Makiko Saito, Hideo Matsuoka, Toru Yamanaka
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Patent number: 8092835Abstract: Injectable microspheres are obtained from double bond functionalized polyhydric alcohol ester by a method comprising dissolving the double bond functionalized esters in a hydrophobic organic solvent, forming an aqueous solution of stabilizer, forming an oil in water emulsion where the solution of stabilizer constitutes the continuous phase and the solution of ester constitutes the disperse phase and evaporating the organic solvent or from block copolymer of PGCLM and methoxy poly(ethylene glycol).Type: GrantFiled: October 10, 2011Date of Patent: January 10, 2012Assignee: Cytogel Pharma, LLCInventors: Daqing Wu, Chih-Chang Chu, Joseph Carozza
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Patent number: 8092830Abstract: A process for producing a lactic acid polymer of 15,000 to 50,000 in weight-average molecular weight, the content of polymeric materials having not more than about 5,000 in weight-average molecular weight therein being not more than about 5% by weight, characterized by hydrolyzing a high molecular weight lactic acid polymer, placing the resultant solution comprising the hydrolyzed product under a condition capable of precipitating the objective lactic acid polymer, separating the precipitated lactic acid polymer and collecting them. The lactic acid polymer is useful as a matrix for sustained-release preparations. The sustained-release microcapsule preparation encapsulating a physiologically active substance can fully prevent the initial excessive release of the physiologically active substance from the microcapsules and keep a stable release rate over a long period of time.Type: GrantFiled: July 2, 2007Date of Patent: January 10, 2012Assignees: Wako Pure Chemical Industries, Ltd., Takeda Pharmaceutical Company LimitedInventors: Kohei Yamamoto, Tsutomu Tani, Takashi Aoki, Yoshio Hata
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Publication number: 20120004385Abstract: Disclosed is a maintenance liquid for property carrying out imprints excellent in patternability. The maintenance liquid for imprints of an ink-jet discharging device comprises a compound comprising an ester group and/or an ether group.Type: ApplicationFiled: June 29, 2011Publication date: January 5, 2012Applicant: FUJIFILM CORPORATIONInventors: Kunihiko KODAMA, Kenichi KODAMA
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Publication number: 20110318395Abstract: Absorbable polyester fibers, braids, and surgical meshes with prolonged strength retention have been developed. These devices are preferably derived from biocompatible copolymers or homopolymers of 4-hydroxybutyrate. These devices provide a wider range of in vivo strength retention properties than are currently available, and could offer additional benefits such as anti-adhesion properties, reduced risks of infection or other post-operative problems resulting from absorption and eventual elimination of the device, and competitive cost. The devices may also be particularly suitable for use in pediatric populations where their absorption should not hinder growth, and provide in all patient populations wound healing with long-term mechanical stability. The devices may additionally be combined with autologous, allogenic and/or xenogenic tissues to provide implants with improved mechanical, biological and handling properties.Type: ApplicationFiled: September 8, 2011Publication date: December 29, 2011Inventors: David P. Martin, Said Rizk, Ajay Ahuja, Simon F. Williams
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Patent number: 8084551Abstract: Plasticization process for lactic acid polymers characterized in that it includes the grinding of the lactic acid polymers, the mixing of said ground and solid state lactic acid polymers, with mixtures of lactic acid oligomers, the subjecting of the mixture to a temperature of between 150° C. and 200° C. and at a pressure of between 1.4 bar and 4 bar, and the making up of the mixture, in a period of time of less than 30 minutes from the moment the lactic acid oligomers come in contact with lactic acid polymers.Type: GrantFiled: January 25, 2008Date of Patent: December 27, 2011Inventors: Paolo Ara, José María Garreta-Such, legal representative, Stefano Fiori
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Publication number: 20110301325Abstract: The present invention relates to an obtainment process of biodegradable polymers from a citric residue resulting from the processing of orange juice. The polymers obtained are polyesters classified as polyhydroxyalkanoates including, among them the poly(3-hydroxybutyrate) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate). The biodegradable polymer is obtained from the batch culture process or fed batch culture process with or without recirculation of the cells, using as a carbon source the pre-treated pressing liquor and/or the citric molasses. The polyhydroxyalkanoates, herein described, can be used as substitutes of the synthetic polyesters in different areas, including the food, pharmaceutical, medical, agricultural and other areas.Type: ApplicationFiled: November 18, 2008Publication date: December 8, 2011Inventors: Glaucia Maria Falcao de Aragao, Willibaldo Schimidell Netto, Jaciane Lutz Ienczak, Mônica Lady Fiorese, Francieli Dalcaton, Franciny Schmidt, Ricardo Deucher, Cinthia Vecchi, Rafael Costa Rodrigues
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Publication number: 20110293938Abstract: When industrially separating and purifying poly-3-hydroxyalkanoic acid produced by a microorganism, to obtain poly-3-hydroxyalkanoic acid agglomerates having an arbitrary volume mean particle diameter with favorable productivity and with decreased amount of an organic solvent used is enabled while decreasing contaminants derived from constitutive components of cellular bodies. According to the present invention, agglomerates of poly-3-hydroxyalkanoic acid are obtained by adjusting the pH of an aqueous poly-3-hydroxyalkanoic acid suspension to fall within an acidic region.Type: ApplicationFiled: December 2, 2009Publication date: December 1, 2011Applicant: Kaneka CorporationInventors: Masaki Takita, Yoshifumi Yanagita
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Patent number: 8067136Abstract: To provide: a charge control agent having negative chargeability, which contributes to environmental conservation and the like to an increased degree, has high performance (high charge amount, quick rise-up of charge, excellent stability with time, and high environmental stability), and has improved dispersibility; a toner for developing an electrostatic charge image containing the charge control agent; and an image forming method and an image forming apparatus each using the toner for developing an electrostatic charge image. A charge control agent for controlling a charged state of powder, characterized by including one or more units each represented by the following chemical formula (1) in a molecule.Type: GrantFiled: June 9, 2005Date of Patent: November 29, 2011Assignee: Canon Kabushiki KaishaInventors: Tetsuya Yano, Takashi Kenmoku, Tatsuki Fukui, Ako Kusakari, Chieko Mihara
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Patent number: 8067505Abstract: Methods for preparing water soluble, non-peptidic polymers carrying carboxyl functional groups, particularly carboxylic acid functionalized poly(ethylene glycol) (PEG) polymers are disclosed, as are the products of these methods. In general, an ester reagent R(C?0)OR?, wherein R? is a tertiary group and R comprises a functional group X, is reacted with a water soluble, non-peptidic polymer POLY-Y, where Y is a functional group which reacts with X to form a covalent bond, to form a tertiary ester of the polymer, which is then treated with a strong base in aqueous solution, to form a carboxylate salt of the polymer. Typically, this carboxylate salt is then treated with an inorganic acid in aqueous solution, to convert the carboxylate salt to a carboxylic acid, thereby forming a carboxylic acid functionalized polymer.Type: GrantFiled: February 9, 2011Date of Patent: November 29, 2011Assignee: Nektar TherapeuticsInventors: J. Milton Harris, Antoni Kozlowski, Lihong Guo
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Patent number: 8063145Abstract: An object of the present invention is to provide a golf ball which is superior in durability to a golf ball having an ionomer resin cover which has conventionally been used. Another object of the present invention is to provide a golf ball using a non-petroleum based material. The golf ball of the present invention comprises a core and a cover covering the core, wherein at least either the core or the cover includes, as a resin component, a polyester resin containing a non-petroleum based material as a constitutional component.Type: GrantFiled: December 27, 2007Date of Patent: November 22, 2011Assignee: SRI Sports LimitedInventor: Satoko Okabe
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Patent number: 8058470Abstract: A star-branched polyester polyol is obtained by polymerizing lactide or lactic acid, using, as an initiator, a fat and oil composed mainly of a triacylglycerol that has at least three hydroxyl groups or epoxy groups in its molecule. This polyester polyol has low crystallinity and a low melting point, and thus shows good working properties when used in various applications. Furthermore, this polyester polyol is derived from renewable resources, and, thus, it is highly desirable in view of its effectiveness in protecting the global environment and preventing fossil resources from being depleted.Type: GrantFiled: March 8, 2007Date of Patent: November 15, 2011Assignees: Bio-Energy Corporation, Osaka University, Kansai Chemical Engineering Co., Ltd.Inventors: Hiroshi Uyama, Yinan Yin, Takashi Tsujimoto, Hideo Noda, Takahiko Terada
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Publication number: 20110275749Abstract: Provided is a polylactic acid resin composition which has excellent flexibility and heat resistance without decreasing a biomass degree. The polylactic acid resin composition includes a polylactic acid and a branched polylactic acid having at least three branched chains composed of a polylactic acid in the molecule can be obtained. This polylactic acid resin composition is very superior due to the following reasons: the resin composition has excellent flexibility because plasticization is accelerated; the resin composition has excellent heat resistance because crystallization is accelerated; and the resin composition is effective in protection of the global environment and measures against fossil resource depletion because the resin composition is derived from a recyclable resource.Type: ApplicationFiled: January 15, 2010Publication date: November 10, 2011Applicant: BIOBASE CORPORATIONInventors: Hiroshi Uyama, Takahiko Terada, Takeshi Yanagimoto
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Patent number: 8053584Abstract: The present case relates to a process for the purification of lactide from a crude lactide vapor product stream which process comprises a rectification/condensation step leading to a lactide-enriched condensate.Type: GrantFiled: December 10, 2003Date of Patent: November 8, 2011Assignee: Tate & Lyle Public Limited CompanyInventors: Johannes Meerdink, Nils Dan Anders Sädergard