Material Contains A Metal Atom Patents (Class 528/275)
  • Patent number: 11396576
    Abstract: An oriented film or a shrink film comprising a polyester composition which comprises at least one polyester which comprises: a dicarboxylic acid component comprising: about 90 to about 100 mole % of terephthalic acid residues; about 0 to about 10 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; and a glycol component comprising: about 10 to about 29 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and about 71 to about 90 mole % ethylene glycol residues; and optionally, diethylene glycol residues; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %; wherein the inherent viscosity of the polyester is from 0.50 to 0.8 dL/g.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: July 26, 2022
    Assignee: Eastman Chemical Company
    Inventors: James Carl Williams, James Wesley Peer
  • Patent number: 11261292
    Abstract: A polyethylene terephthalate composition (PET), an injection-molded bottle preform made from a PET composition, a refillable PET container blow-molded from the preform, catalyst compositions used for making the PET composition, methods for making the PET composition, methods for injection-molding a PET bottle preform, methods for blow-molding a refillable PET bottle from a preform and methods for improving the rewash stability and recyclability of refillable PET bottles particularly for carbonated soft drinks are disclosed. The polyethylene terephthalate composition includes a polyester resin containing terephthalic acid, isophthalic acid, ethylene glycol and cyclohexane dimethanol and residual amount of catalytic composition comprising Sb and Ti. The polyethylene terephthalate composition is especially useful for large blow moldings and provides a change in the fill point volume after 5 wash cycles of a 2.5 liter blow molded bottle of 14 ml or less.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: March 1, 2022
    Assignee: ALPEK POLYESTER, S.A. DE C.V.
    Inventors: David Eugene Thompson, Damian Adrian Salazar Hernandez
  • Patent number: 11255051
    Abstract: A method for producing a foam-formed multilayered substrate that includes producing an aqueous-based foam including at least 3% by weight non-straight synthetic binder fibers, wherein the non-straight synthetic binder fibers have an average length greater than 2 mm; forming together a wet sheet layer from the aqueous-based foam and a cellulosic fiber layer, wherein the cellulosic fiber layer includes at least 60 percent by weight cellulosic fibers; and drying the combined layers to obtain the foam-formed multilayer substrate. A multilayered substrate includes a first layer including at least 60 percent by weight non-straight synthetic binder fibers having an average length greater than 2 mm; and a second layer including at least 60 percent by weight cellulosic fiber, wherein the first layer is in a facing relationship with the second layer, and wherein the multilayered substrate has a wet/dry tensile ratio of at least 60%.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 22, 2022
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Deborah J. Calewarts, Jian Qin, Charles W. Colman, Cathleen M. Uttecht, Donald E. Waldroup, Francis P. Abuto, Jenny L. Day, Stephen M. Lindsay
  • Patent number: 11091586
    Abstract: Described as one aspect of the invention are polyester compositions including at least one polyester which comprises: (a) a dicarboxylic acid component comprising about 90 to about 100 mole % of terephthalic acid residues; and (b) a glycol component comprising: (i) about 10 to about 27 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and (ii) about 73 to about 90 mole % ethylene glycol residues; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %; wherein the inherent viscosity of the polyester is from 0.50 to 0.8 dL/g; and wherein the L* color values for the polyester is 90 or greater. The polyesters may be manufactured into articles.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: August 17, 2021
    Assignee: Eastman Chemical Company
    Inventors: Emmett Dudley Crawford, James Thomas Goetz, Michael Keith Coggins, Douglas Weldon Carico, Jr.
  • Patent number: 11046811
    Abstract: A method for preparing a thermal adhesive copolymerized polyester resin is disclosed. The method includes: a transesterification reaction in a reaction mixture of a diol compound according to Formula 1, for example, 2-Methyl-1,3-propanediol, an isophthalic acid (IPA) or an IPA derivative as an acid component, and polyethylene terephthalate; and a condensation polymerization reaction of the reaction mixture to prepare a copolymerized polyester resin. The copolymerized polyester resin has an intrinsic viscosity (I.V.) of 0.5 dL/g to 0.75 dL/g, a softening point (Ts) of 100° C. to 160° C., and a glass transition temperature (Tg) of 60° C. to 70° C. The copolymerized polyester resin can be effectively used in fields of clothing, automobile parts, as a thermal adhesive fiber. wherein R1 is an alkyl group having 1 to 4 carbon atoms, a and b are each independently an integer ranging from 0 to 3, and each solid line represents a single bond when a and b is 0.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: June 29, 2021
    Assignee: Hurvis Corporation
    Inventors: Boo-Kyeong Jang, Hyun-Wook Shin, Seong-Yoon Park, Yo-Seung Ho
  • Patent number: 10975277
    Abstract: Disclosed are polyether and polyesters polyol condensations. The polyols are uniquely suited for ease of manufacture and improved adhesive characteristics particularly for low surface energy materials. The materials can be used in urethane adhesives.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: April 13, 2021
    Assignee: IFS Industries Inc.
    Inventor: Zhijin Chen
  • Patent number: 10717865
    Abstract: A polyester elastomer is provided, which includes a product of reacting (a) amide oligomer, (b) polyalkylene glycol, and (c) poly(alkylene arylate). (a) Amide oligomer has a chemical structure of or a combination thereof, wherein R1 is C4-8 alkylene group, R2 is C4-8 alkylene group, and each of x is independently an integer of 10 to 20. (b) Polyalkylene glycol has a chemical structure of wherein R3 is C2-10 alkylene group, and y is an integer of 20 to 30. (c) Poly(alkylene arylate) has a chemical structure of or a combination thereof, wherein Ar is R4 is C2-6 alkylene group, and z is an integer of 1 to 10.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: July 21, 2020
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Sheng-Lung Chang, Jen-Chun Chiu, Chih-Hsiang Lin, Meng-Hsin Chen, Chien-Ming Chen, Chuh-Yung Chen, Yen-Chen Lin
  • Patent number: 10714641
    Abstract: A biaxially oriented multilayer transparent film including at least two layers of polyester, respectively a core layer and at least one outer layer, which can be identical or different, wherein: i) at least the core layer includes at least one biaxially oriented transparent polyester PE1, ii) at least one of the outer layers includes, on the one hand, at least one biaxially oriented polyester PE2, and, on the other hand, particles coming from the reaction between at least one metal compound and at least one monomeric or oligomeric unit of PE2, the particles having more preferably a d50—as ?m and following an order of preference—between 0.5 and 5; between 1.0 and 4, and between 1.5 and 3.0. Also relates to the manufacture of this film and its applications as a laminate in particular in the backsheets of photovoltaic cells.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: July 14, 2020
    Assignee: TORAY FILMS EUROPE
    Inventor: Valérie Lacrampe
  • Patent number: 10703900
    Abstract: The present invention relates to a polyester composition comprising: (A) 15 to 99 wt % of polyester blend of two or more polyesters based on the total weight of the polyester composition, (B) 0.05 to 5 wt % of a transesterification accelerator based on the total weight of the polyester composition, wherein the transesterification accelerator comprises alkali metal carbonate salt, alkali earth metal carbonate salt, alkali metal bicarbonate salt, alkali earth metal bicarbonate salt and combination thereof, (C) optionally a reinforcing filler, and (D) optionally further an additive. The present invention also relates to an article prepared from the polyester composition and a method of preparing the article.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: July 7, 2020
    Assignee: BASF SE
    Inventors: Zhenguo Liu, Siqi Xue, Ting Liu, Eason Sun
  • Patent number: 10584089
    Abstract: The present invention generally relates to processes for converting acrylate esters or a derivative thereof to difluoropropionic acid or a derivative thereof. This process is generally performed using fluorine gas in a hydrofluorocarbon solvent. In particular, a process for fluorinating a double bond is disclosed. This process comprises forming a reaction mixture comprising a hydrofluorocarbon solvent, fluorine gas, and a compound of formula 1 wherein R1 is hydroxy, alkoxy, chloro, or —OC(O)CH?CH2 to form a compound of formula 2 in a yield of at least 50% wherein R2 is hydroxy, alkoxy, chloro, —OC(O)CHFCH2F, wherein the hydrofluorocarbon solvent comprises 2H,3H-decafluoropentane and the reaction mixture further comprises a fluorination agent.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: March 10, 2020
    Assignee: Vifor (International) Ltd.
    Inventor: YongQi Mu
  • Patent number: 10351668
    Abstract: A process for reducing diethylene glycol formation in polyethylene terephthalate includes (a) subjecting a mixture of bis(2-hydroxyethyl)terephthalate with aromatic polycarboxylic acid to an esterification reaction, and (b) subjecting the esterification reaction product to polycondensation.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: July 16, 2019
    Assignee: Far Eastern New Century Corporation
    Inventors: Der-Ren Hwang, Cheng-Ting Wang, Hsiao-Chan Wang
  • Patent number: 10294328
    Abstract: Disclosed is a transesterified polylactic acid product which has been transesterified with a diol and at least one natural oil. The transesterified polylactic acid product has surprisingly improved properties compared to unmodified polylactic acid including: a liquid state at room temperature, a reduced melting temperature and increased solubility in a variety of solvents. Also disclosed is a method for producing the transesterified polylactic acid product. The transesterified polylactic acid product is economical to produce and includes a high content of renewable resources. In addition, the product is biodegradable.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: May 21, 2019
    Assignee: Henkel IP & Holding GmbH
    Inventors: Grant B. Kenion, Alexander P. Mgaya, Balasubramaniam Ramalingam, Zhengmian Chang
  • Patent number: 10179844
    Abstract: Disclosed is a biaxially stretched polyester film containing an antimony compound as a catalyst component, and a magnesium compound and a phosphorus compound as additives, in which an amount of metal antimony included in residues on a membrane filter having an average pore diameter of 0.1 ?m, after a solution in which 1 g of the biaxially stretched polyester is dissolved in 5 ml of hexafluoroisopropanol is filtered by the filter, is 10 to 100 mg per 1 kg of the biaxially stretched polyester.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 15, 2019
    Assignee: FUJIFILM Corporation
    Inventor: Rei Miyasaka
  • Patent number: 10174153
    Abstract: An epoxy resin composition in a liquid or solid state having excellent solubility and having high preservation stability. A modified epoxy resin composition including: Compound A containing tris-(2,3-epoxypropyl)-isocyanurate having 1 to 3 glycidyl group(s) in a molecule substituted with a functional group(s) of Formula (1): in which R1 and R2 are each independently an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an aralkyl group, a heterocyclic group; or a halogenated derivative, an aminated derivative, or a nitrated derivative of these groups; and Compound B containing tris-(2,3-epoxypropyl)-isocyanurate, wherein tris-(2,3-epoxypropyl)-isocyanurate of Compound A before the substitution and tris-(2,3-epoxypropyl)-isocyanurate of Compound B comprise 2% by mass to 15% by mass of ?-type tris-(2,3-epoxypropyl)-isocyanurate and a remaining percentage of ?-type tris-(2,3-epoxypropyl)-isocyanurate based on a total mass of Compound A before the substitution and Compound B.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: January 8, 2019
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Yuki Endo, Motohiko Hidaka, Mikio Kasai, Takashi Oda, Nobuyuki Kakiuchi
  • Patent number: 9868815
    Abstract: The present invention is a copolymerized polyester resin which contains a dicarboxylic acid component and diol components as constituting components, wherein greater than or equal to 90 mol % of terephthalic acid is contained as the dicarboxylic acid component, 39 to 79 mol % of ethylene glycol, 20 to 60 mol % of neopentyl glycol and 1 to 5 mol % of diethylene glycol are contained as the diol components, the reduced viscosity of the resin is greater than or equal to 0.50 dl/g, the number of contaminants having a particle diameter of greater than or equal to 5 ?m is less than or equal to 100 per 1 mm2 in a sample of the copolymerized polyester resin having a thickness of 0.8 to 0.9 mm. The copolymerized polyester resin has a higher degree of clarification than conventionally known copolymerized polyesters and also has excellent color hue and heat resistance.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: January 16, 2018
    Assignee: TOYOBO CO., LTD.
    Inventors: Hideto Ohashi, Nobuyuki Hironaka
  • Patent number: 9656409
    Abstract: The present invention relates to a method for preparing polyamide granules. This method comprises, in particular, steps of extruding the polymer, cooling and cutting the extruded material, and a step of cooling the granules. The method of the invention is simple and quick to implement.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: May 23, 2017
    Assignee: Rhodia Operations
    Inventors: Jean-Francois Thierry, Phlippe Boulanger
  • Patent number: 9375968
    Abstract: The invention relates to a special layer construction and a special film of plastic for the production of such a layer construction which is suitable for printing by means of dye diffusion thermal transfer printing, a process for the production thereof and a security and/or valuable document comprising such a layer construction.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: June 28, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Heinz Pudleiner, Klaus Meyer, Georgios Tziovaras, Mehmet-Cengiz Yesildag, Chung Leung Wong
  • Patent number: 9290614
    Abstract: The invention relates to a method for producing a biomass-resource-derived polyurethane, which comprises: reacting a dicarboxylic acid and an aliphatic diol to produce a polyester polyol; and reacting the polyester polyol and a polyisocyanate compound, wherein the dicarboxylic acid contains at least one component derived from biomass resources, a content of an organic acid in the dicarboxylic acid is more than 0 ppm and not more than 1,000 ppm relative to the dicarboxylic acid, and a pKa value of the organic acid at 25° C. is not more than 3.7.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: March 22, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Teruhiko Ohara, Naoki Suzuki, Yasuko Nakajima, Hiroto Itou, Takayuki Aoshima, Naoki Sugai, Takanao Matsumoto
  • Patent number: 9145470
    Abstract: A process of preparing a polyalkylene terephthalate comprising reacting an alkylene diol and an aromatic dicarboxy compound that is an aromatic dicarboxylic acid, aromatic dicarboxylic (C1-C3)alkyl ester, or a combination thereof, wherein ester interchange and polymerization occurs in the presence of a catalyst complex formed by the reaction of tetraisopropyl titanate and a boron, phosphorous or nitrogen-containing complexing agent, which catalyst can be synthesized in situ prior to ester interchange and introduced to a mixture of the alkylene diol and the aromatic dicarboxy compound prior to ester interchange.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: September 29, 2015
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Husnu Alp Alidedeoglu, Ganesh Kannan, Tianhua Ding, Tukaram Gunale
  • Patent number: 9051116
    Abstract: A container comprising a polyester composition with enhanced carbon dioxide and oxygen barrier properties is provided. The polyester composition comprises a polyester and a gas barrier enhancing additive. In a particular embodiment, the gas barrier enhancing additive comprises a compound having the chemical formula: X—(X1)s—COO—(X2)t—X3—(X4)u—OOC—(X5)v—X6 or X—(X1)s—OOC—(X2)t—X3—(X4)u—COO—(X5)v—X6.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: June 9, 2015
    Assignee: The Coca-Cola Company
    Inventors: Robert Kriegel, Xiaoyan Huang, Robert Schiavone, T. Edwin Freeman
  • Publication number: 20150148516
    Abstract: The present invention discloses new catalyst systems based on complexes of divalent metals supported by chelating phenoxy ligands for immortal ring-opening polymerisation of cyclic esters and cyclic carbonates.
    Type: Application
    Filed: November 25, 2014
    Publication date: May 28, 2015
    Inventors: Jean-Francois Carpentier, Yann Sarazin, Valentin Poirier, Marion Helou
  • Patent number: 8921509
    Abstract: Provided is a composition with partially aromatic polyester polymers having an It.V. of at least 0.50 dL/g, produced in an ester exchange melt phase process, having from zero or greater than zero to less than 5 ppm titanium, from zero or greater than zero to less then 10 ppm germanium, and from zero or greater than zero to less than 20 ppm manganese.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: December 30, 2014
    Assignee: Grupo Petrotemex, S.A. de C.V.
    Inventors: Zhufang Liu, Jeff Scott Howell
  • Publication number: 20140364580
    Abstract: The invention provides a metal alkoxide complex of Formula (I), wherein X, M, R1, R2, R3, m, n, y and z are as defined in the Description. The invention also provides a catalyst composition comprising the metal alkoxide complex and a hydroxy-containing compound, wherein the molar ratio of the metal alkoxide complex to the hydroxy-containing compound is 1:01-1000. The invention also provides a production method of poly-?- caprolactone or polyactide, wherein an ?-caprolactone monomer or a lactide monomer is reacted in the presence of the metal alkoxide complex or catalyst composition to obtain poly-?-caprolactone or polylactide. The metal alkoxide complex and the catalyst composition thereof can be used to catalyze the synthesis of poly-?- caprolactone or polylactide with a high efficiency.
    Type: Application
    Filed: September 11, 2012
    Publication date: December 11, 2014
    Applicant: Changchun Institute of Applied Chemistry Chinese Academy of Sciences
    Inventors: Dongmei Cui, Xinli Liu, Bo Liu, Shihui Li, Dongtao Liu, Chunji Wu
  • Patent number: 8906821
    Abstract: A catalyst composition comprising a cation and an anion of the formula Anq?Qpm+, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qm+is an organo onium, and Aq?is an anion, provided that at least one Aq?is selected from the formula (I) wherein each R independently is H, halo, alkyl, aryl, aralkyl, or cycloalkyl, and which also may be halogenated, fluorinated, or perfluorinated, wherein two or more of R and R? groups may together form a ring, wherein each R group independently may contain one or more heteroatom(s), wherein R? can be the same as R, with the proviso that R? cannot be halo, and wherein the catalyst composition is essentially free of hydrocarbon containing alcohol. Also provided are a fluoropolymer composition including this curative, a method of making a fluoropolymer, and fluoropolymer articles containing curable or cured fluoropolymer compositions.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: December 9, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Werner M. A. Grootaert, Kim M. Vogel, Dennis E. Vogel
  • Publication number: 20140357808
    Abstract: A process for preparing a high molecular weight heteraromatic polyester or copolyester is disclosed. A process for preparing a high molecular weight heteroaromatic polyester or copolyester includes the steps of: (a) processing comonomers by mixing together to form a homogeneous solution (1) at least one heteroaromatic dicarboxylic acid having 2-12 carbon atoms or a diester or an acid anhydride derived therefrom, or a mixture thereof; (2) at least one alcohol having 2 to 12 carbon atoms and at least two hydroxyl functionalities; and (3) optionally aromatic or aliphatic dicarboxylic acids or diesters or acid anhydrides derived therefrom; (b) converting the paste/solution obtained in step a) into an esterification product containing at least one diester or at least one oligoester formed from the at least one heteroaromatic dicarboxylic acid and the at least one alcohol; and (c) polycondensing/copolycondensing the reaction product obtained from step b) under reduced pressure.
    Type: Application
    Filed: August 15, 2014
    Publication date: December 4, 2014
    Inventors: Christopher Hess, Caspar Paetz
  • Patent number: 8901271
    Abstract: The invention relates to a process for making polyethylene terephthalate (PET) from ethylene glycol (EG), purified terephthalic acid (PTA) and optionally up to 6 mol % comonomer, using a mixed metal catalyst system and comprising the steps of a) esterifying EG and PTA to form diethyleneglycol terephthalate and oligomers (DGT), and b) melt-phase polycondensing DGT to form PET and EG, wherein the catalyst system substantially consists of 70-160 ppm of Sb-compound, 20-70 ppm of Zn-compound, and 0.5-20 ppm of Ti-glycolate as active components (ppm metal based on PET). With this process that applies reduced amount of metal catalyst components PET can be obtained with high productivity, which polyester shows favorable color and optical clarity, also if recycling of EG is applied within the process.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: December 2, 2014
    Assignee: Saudi Basic Industries Corporation
    Inventors: Munif Al-Munif, Mummaneni Venkateswara Rao, Zahir Bashir, Suresh Padmanabhan
  • Publication number: 20140343244
    Abstract: The invention relates to methods and systems for preparing macrocyclic polyester oligomer (MPO) via base catalysis. It is found that base catalysts are effective in the production of MPO, and they reduce the potential for undesired byproducts such as furans (e.g., THF) and acetaldehyde, which result from diol side reactions.
    Type: Application
    Filed: March 13, 2014
    Publication date: November 20, 2014
    Applicant: Liquid Thermo Plastics, Inc.
    Inventors: Jimmy Lynn Webb, John Lippert, III, James Mihalich
  • Patent number: 8846561
    Abstract: The present invention relates to a catalytically active composition that can be used for the production of polyesters. According to the invention, good polyester products can be obtained in this way without having to use antimony components.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: September 30, 2014
    Assignee: Lurgi Zimmer GmbH
    Inventors: Brigitta Otto, Eckhard Seidel
  • Patent number: 8829152
    Abstract: The invention relates to methods and systems for preparing macrocyclic polyester oligomer (MPO) directly from monomer via heterogeneous catalysis, rather than by depolymerizing a polyester. For example, in an exemplary embodiment, cyclic poly(butylene terephthalate) (cPBT) is produced by reacting butanediol (BDO) and dimethylterephthalate (DMT) in an organic solvent—for example, ortho-dichlorobenzene (oDCB). The mixture flows over (or otherwise contacts) the catalyst-coated fiberglass or silica gel, e.g., which is packed in a column or bed. MPO is produced in the reaction mixture, while residual linears and catalyst residue remain in the column/bed.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: September 9, 2014
    Assignee: Liquid Thermo Plastics, Inc.
    Inventors: Jimmy Lynn Webb, James Mihalich
  • Publication number: 20140197349
    Abstract: Disclosed are formaldehyde-free, thermally-curable, alkaline, aqueous binder compositions, curable to formaldehyde-free, water-insoluble thermoset polyester resins, and uses thereof as binders for non-woven fibers and fiber material.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Applicant: Knauf Insulation GmbH
    Inventor: Clarence H. HELBING
  • Patent number: 8748562
    Abstract: A process for producing higher molecular weight polyester includes heating a polyester to form a melt, and applying and maintaining a vacuum of between about 5 mm and about 85 mm of mercury to the melt while passing bubbles of gas through the melt until molecular weight has increased. The process may involve esterification of a diacid component and a diol component at elevated temperature. After the acid functional groups have essentially reacted, a vacuum of about 5 mm of mercury or less was applied and excess diol stripped off during transesterification, thereby increasing molecular weight.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: June 10, 2014
    Assignee: AWI Licensing Company
    Inventors: Larry W. Leininger, Dong Tian
  • Patent number: 8748558
    Abstract: Methods for producing biocompatible compositions are provided. The biocompatible compositions include an aliphatic polyester macromer produced without the use of solvents or catalysts. The resulting aliphatic polyester macromer may be reacted with a polyisocyanate to form an end-capped aliphatic polyester macromer which, in turn, may be reacted with a polyol to produce a polyurethane. The polyurethane, in turn, may be reacted with a second polyisocyanate to produce an isocyanate-functional polyurethane. The compositions prepared by the methods of the present disclosure may be used as adhesives or sealants for medical/surgical uses.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: June 10, 2014
    Assignee: Covidien LP
    Inventors: Walter Skalla, Allison Calabrese, Ahmad R. Hadba, Nadya Belcheva
  • Publication number: 20140142272
    Abstract: A process of continuous production for polyester, comprising continuously supplying an esterification or transesterification product comprising ester oligomers with an acid value of less than 100 meq/kg to a liquid phase polymerization reactor, wherein the esterification or transesterification product is produced by esterification or transesterification of a polycarboxylic acid or an alkyl ester thereof and a polyhydric alcohol; and performing a liquid-phase polymerization at a temperature of 200 to 270° C. and at a pressure of 0 to 5 torr in a liquid-phase polymerization reactor to produce the polyester with an intrinsic viscosity of 0.4 dl/g or higher.
    Type: Application
    Filed: November 19, 2013
    Publication date: May 22, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: In-Ki KIM, Eun Ha PARK, Ha Il KWON, Seung Joon HWANG, Moo Ho LEE
  • Patent number: 8697832
    Abstract: The invention relates to a process for preparing lactic acid polymers of highly crystallinity and molecular weight, the process comprising melt polymerization of a lactide to form prepolymers having active end groups followed by solid state polymerization. The polymerization is carried out in the presence of a catalyst complex comprising a lactide, an organic metal-oxo compound and a lactic acid oligomer. The residual lactide after the melt polymerization is removed by heating the reaction mixture in the temperature range of 98° C. to a temperature less than the melting point of the prepolymer. The metal to oligomer ratio in the catalyst complex is in the range of 0.1 to 10, preferably in the range of 0.5 to 5, more preferably in the range of 0.8 to 1.5.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: April 15, 2014
    Assignee: Indian Institute of Technology, Bombay
    Inventors: Hemant Nanavati, Vimal Katiyar
  • Patent number: 8691934
    Abstract: Disclosed are formaldehyde-free, thermally-curable, alkaline, aqueous binder compositions, curable to formaldehyde-free, water-insoluble thermoset polyester resins, and uses thereof as binders for non-woven fibers and fiber materials.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: April 8, 2014
    Assignee: Knauf Insulation GmbH
    Inventors: Mary Hession, James Helbing
  • Patent number: 8680229
    Abstract: The present invention is aimed to provide a method for producing a polyester with reduced CD content and elution amount, in which even after the production method, a reduction in physical properties of the polyester is small, and furthermore, a polyester having good moldability can be produced, and the present invention is concerned with a method for producing a polyester including an esterification reaction step of allowing an aliphatic diol and an aliphatic dicarboxylic acid to react with each other; a step of pelletizing a polyester obtained through the esterification reaction step; and a contact treatment step of bringing the obtained polyester pellets into contact with a mixed solution containing ethanol and water, wherein the mixed solution contains water in an amount of 10% by mass or more and not more than 99% by mass relative to the whole of the mixed solution.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: March 25, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Naoya Maeda, Shinichiro Matsuzono, Takayuki Suzuki, Hiromichi Matsui
  • Patent number: 8563650
    Abstract: The present invention concerns a method for producing an aqueous dispersion (X1), the method including a step that includes mixing an aqueous dispersion liquid (W) of resin particles (A) comprising a resin (a) with a precursor (b0) of a resin (b) or an oily liquid (OL) comprising the precursor (b0) and an organic solvent to disperse the precursor (b0) or the oily liquid (OL) in the aqueous dispersion liquid (W), followed by causing the precursor (b0) to react in the aqueous dispersion liquid (W) to form resin particles (B) comprising the resin (b), thereby obtaining the aqueous dispersion (X1) of resin particles (C) having a structure where resin particles (A) are adhered on the surface of the resin particles (B), wherein at least one of the resin (a) and the resin (b) contains a polyester resin (p1) formed in the presence of a specific titanium catalyst (t) or a resin (p2) having the polyester resin (p1) as a constituent unit.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: October 22, 2013
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Shuhei Yahiro, Yoko Sakurai, Yasuhiro Ono
  • Patent number: 8563677
    Abstract: A stable catalyst solution suitable for catalyzing the polycondensation of reactants to make polyester polymers comprising: (i) M, wherein M is represented by an alkaline earth metal or alkali metal and (ii) aluminum metal and (iii) a polyhydroxyl solvent having at least 3 carbon atoms and at least two primary hydroxyl groups, the longest carbon chain being a hydrocarbon; such as 1,3-propane diol, 1,4-butane diol, 1,5-pentane diol, or combinations thereof, wherein the molar ratio of M:Al ranges from 0.75:1 to less than 1.5:1. The catalyst solution is desirably a solution which does not precipitate upon standing over a period of at least one week at room temperature (25° C.-40° C.), even at molar ratios of M:Al approaching 1:1. There is also provided a method for the manufacture of the solution, its feed to and use in the manufacture of a polyester polymer, and polyester polymers obtained by combining certain ingredients or containing the residues of these ingredients in the composition.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: October 22, 2013
    Assignee: Grupo Petrotemex, S.A. de C.V.
    Inventor: Jason Christopher Jenkins
  • Publication number: 20130253165
    Abstract: A process of producing a polyester composition includes carrying out an esterification reaction of a dicarboxylic acid component with a diol component, and then carrying out a polycondensation reaction, wherein the diol component is added twice or more during a time from completion of the esterification reaction until beginning the polycondensation reaction, and alkali metal phosphate is added with an amount of COOH terminal groups of an esterification reactant being not more than 150 eq/ton.
    Type: Application
    Filed: July 29, 2011
    Publication date: September 26, 2013
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Mayumi Matsumoto, Hiroji Kojima, Jun Sakamoto
  • Patent number: 8445625
    Abstract: A process for producing a polyether having at least one hydroxy group by subjecting a cyclic monomer to ring-opening addition polymerization to an initiator having a hydroxy group in the presence of a double metal cyanide complex catalyst, comprising the following steps: initial step: supplying the cyclic monomer in an amount of 5 to 20 mass percent of the initiator to a reaction system containing the initiator and the catalyst, to carry out reaction, wherein the reaction system temperature when supply of the cyclic monomer is started is from 120 to 165° C., and the maximum temperature of the reaction system after supply of the cyclic monomer is higher by from 15 to 50° C. than the temperature when supply of the cyclic monomer is started; and polymerization step: supplying the cyclic monomer to the reaction system after the initial step to carry out ring-opening addition polymerization.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 21, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Chitoshi Suzuki, Takeaki Arai, Masahito Furumi, Hideaki Tanaka, Takayuki Sasaki, Akio Horie
  • Patent number: 8436131
    Abstract: Disclosed are phosphinic acid compounds of formula I, II or III where R1 and R1? are for instance straight or branched C1-C50alkyl, R2 is for instance straight or branched C22-C50alkyl, R3 and R3? are for instance straight or branched C1-C50alkyl, R4 is for instance straight or branched C1-C50alkylene and m is from 2 t 100. Also disclosed are polyester compositions comprising the compounds of formula I, II and III.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: May 7, 2013
    Assignee: BASF SE
    Inventors: Paul Odorisio, Stephen M. Andrews, Thomas F. Thompson, Si Wu, Paragkumar Thanki, Deepak M. Rane, Delina Joseph, Jianzhao Wang
  • Patent number: 8431218
    Abstract: A poly(lactic acid) resin composition is provided, comprising (a) a poly(lactic acid) resin, (b) at least one modifier selected from at least one metal/nonmetal alkoxide, at least one metal/nonmetal alkoxide having at least one functional group capable of reacting with the poly(lactic acid) resin, or a mixture thereof, (c) a first catalyst, and (d) optionally, a second catalyst. A process for preparing a transparent and impact-resistant article from the poly(lactic acid) resin composition of the invention, and articles prepared therefrom are also provided.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: April 30, 2013
    Assignee: Far Eastern New Century Corporation
    Inventors: Chih-Ying Kuo, Li-Ling Chang, Ru-Yu Wu, Yih-Wen Wang
  • Patent number: 8329857
    Abstract: The present invention provides a method for producing a polyester resin, comprising carrying out a hot-water treatment and a heat treatment, in this order, of polyester prepolymer particles obtained by melt polycondensation of a dicarboxylic acid component and a diol component. The hot-water treatment comprises bringing the polyester prepolymer particles with an intrinsic viscosity of from at least 0.10 dL/g to at most 1.0 dL/g and with a density of at most 1.36 g/cm3 into contact with hot water at a temperature higher than the glass transition temperature of the polyester prepolymer particles and less than 100° C., under the condition satisfying the following formula (1): 40?(T?Tg)t?6000??(1) wherein t is a hot-water treatment time (second), T is the temperature of the hot water (° C.) and Tg is the glass transition temperature (° C.) of the polyester prepolymer particles.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: December 11, 2012
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Michiko Yoshida, Takeyuki Doi, Naoya Maeda, Hisashi Kimura
  • Patent number: 8293862
    Abstract: The present invention provides processes for producing polyester. In one of the embodiments, the invention provides a process for producing polyester, comprising adding a catalyst in a polycondensation reaction, esterification reaction or transesterification reaction between components comprising at least a polyfunctional alcohol and at least a polyfunctional carboxylic acid or ester-forming derivative of a polyfunctional carboxylic acid to produce the polyester; and obtaining the polyester, wherein the polymerization catalyst comprises an aluminum substance and a phosphorus compound, wherein the aluminum substance is selected from the group consisting of aluminum hydroxide and aluminum alkoxides, and wherein the phosphorus compound has an aromatic ring structure.
    Type: Grant
    Filed: February 22, 2007
    Date of Patent: October 23, 2012
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Takahiro Nakajima, Ken-ichi Tsukamoto, Shoichi Gyobu, Mitsuyoshi Kuwata
  • Patent number: 8258253
    Abstract: Disclosed is a method for increasing the solid state polymerization (SSP) rates of metal catalyzed polyesters. The method comprises in a first step, reacting a dicarboxylic acid or a C1-C4 dicarboxylic diester with a diol at a suitable temperature and pressure to effect esterification or transesterification to prepare a precondensate and in a second step, reacting the precondensate to effect polycondensation at a suitable temperature and pressure to prepare a high molecular weight polyester and in a third step, further increasing the molecular weight and viscosity of the polyester under SSP conditions of a suitable temperature and pressure, where a metal catalyst is added in the first step or in the second step as a reaction catalyst, and where a certain phosphinic acid compound is added in the first step, in the second step or just prior to the third step. The polyester product exhibits low aldehyde formation during melt processing steps as well as excellent color.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: September 4, 2012
    Assignee: BASF SE
    Inventors: Paul Odorisio, Stephen M. Andrews, Thomas F. Thompson, Si Wu, Paragkumar Thanki, Deepak M. Rane, Delina Joseph, Jianzhao Wang
  • Patent number: 8252888
    Abstract: The present invention relates to a method for the continuous production of high-molecular polyesters by esterification of dicarboxylic acids and/or transesterification of dicarboxylic acid esters with diols and/or mixtures thereof in the presence of catalysts with formation of a prepolymer in a tower reactor and polycondensation thereof to form a high-molecular polyester in a polycondensation reactor, a prepolymer with >40 to 70 repeat units (DP) being produced in the tower reactor and this prepolymer being polycondensed in only one further reactor to form a polyester with >150 to 205 DP.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: August 28, 2012
    Assignee: Uhde Inventa-Fischer GmbH
    Inventor: Eike Schulz Van Endert
  • Publication number: 20120202963
    Abstract: In producing a polyether in the presence of a double metal cyanide complex catalyst, a narrow molecular weight distribution of the polyether can be obtained. Producing a polyether with at least one hydroxy group includes subjecting a cyclic monomer, such as an alkylene oxide, to a ring-opening addition polymerization with an initiator having a hydroxy group, in the presence of a double metal cyanide complex catalyst.
    Type: Application
    Filed: March 30, 2012
    Publication date: August 9, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Chitoshi SUZUKI, Takeaki Arai, Masahito Furumi, Hideaki Tanaka, Takayuki Sasaki, Akio Horie
  • Publication number: 20120172537
    Abstract: To provide a process for producing a polyether, which comprises subjecting an alkylene oxide and the like to ring-opening addition polymerization to an initiator in the presence of a double metal cyanide complex catalyst (DMC catalyst), which can be carried out by use of a DMC catalyst at a low concentration, and accordingly the amount of the DMC catalyst remaining in a polyether to be obtained can be reduced. A process for producing a polyether, which comprises subjecting an alkylene oxide and an oxygen-containing heterocyclic compound other than an alkylene oxide, to ring-opening addition polymerization to an initiator having a hydroxy group in the presence of a DMC catalyst, wherein prior to the ring-opening addition polymerization, the DMC catalyst and the initiator are subjected to mixing treatment at a temperature of from 125° C. to 180° C. under an absolute pressure of at most 0.06 MPa for from 10 minutes to 24 hours.
    Type: Application
    Filed: March 13, 2012
    Publication date: July 5, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Takeaki ARAI, Chitoshi Suzuki
  • Patent number: 8143356
    Abstract: A method for producing a polyester resin composition C), which comprises melt-kneading a polyester resin (A) which satisfies the following formulae (1), (2) and (3) and a polyester resin (B) which satisfies the following formula (4): P1?10??(1) 0.1?Ge1?1.5??(2) 0.001?Ge1/P1?0.15??(3) 0?P2/Ti1?80??(4) provided that in the formulae (1), (2) and (3), P1 is the content (mol) of phosphorus atoms and Ge1 is the content (mol) of germanium atoms, per ton of the polyester resin (A), and in the formula (4), P2 is the content (mol) of phosphorus atoms and Ti1 is the content (mol) of titanium atoms, per ton of the polyester resin (B). A polyester resin composition (C) obtained by the method, and a molded product such as a film made from such a composition are also provided.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: March 27, 2012
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takeshi Ogawa, Motohiro Munakata, Toshio Kambe
  • Patent number: 8138233
    Abstract: In one embodiment, the invention relates to a two step process in which a 1,4-butane diol component reacts with a polyethylene terephthalate component under conditions that depolymerize the polyethylene terephthalate component into a molten mixture and the molten mixture is placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers. In another embodiment, the invention relates to a three step process in which a diol component selected from the group consisting of ethylene glycol, propylene glycol, and combinations thereof reacts with a polyethylene terephthalate component under conditions sufficient to depolymerize the polyethylene terephthalate component into a first molten mixture; and where the first molten mixture is combined with 1,4-butane diol under conditions that create a second molten mixture that is subsequently placed under subatmospheric conditions that produce the modified polybutylene terephthalate random copolymers.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: March 20, 2012
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Parminder Agarwal, Kristen Cohoon-Brister, Sandeep Dhawan, Robert Russell Gallucci, Ganesh Kannan, Kenneth Frederick Miller, Dhaval Shah