Patents Examined by Gennadiy Mesh
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Patent number: 9714321Abstract: A continuous process for manufacturing a polyester includes introducing reactant components including a terephthalic acid slurry having an ethylene glycol to terephthalic acid molar ratio of about 2 and a TiO2 slurry to an initial reactor vessel and stirring the reactant components at greater than 0 to 200 rpm to form an oligomer; transferring the oligomer, phosphoric acid, and at least one additive (carbon black, 5-sulfoisophthalic acid, 5-sulfoisophthalic acid dimethyl ester, and/or 5-sulfoisophthalic acid diglycolate) to an intermittent reactor vessel and stirring at 400 rpm to 1000 rpm to form an intermediate, wherein the oligomer, the at least one additive, and the phosphoric acid have a residence time of from 1 minute to 5 minutes in the intermittent vessel; and polymerizing the intermediate in a final reactor vessel at a temperature of 285° C. to 320° C., and in the absence of a polyethylene glycol, to obtain the polyester.Type: GrantFiled: January 23, 2013Date of Patent: July 25, 2017Assignee: RELIANCE INDUSTRIES LIMITEDInventors: Uday Shankar Agarwal, Ved Prakash Mishra, Krishna Srinivas Rao, Subbiah Venkatachalam, Rajiv Dixit, Ashwin Kumar Jain, Anil Krishna Kelkar
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Patent number: 9683075Abstract: Continuous process of forming aliphatic polyesters The process includes continuously providing cyclic ester monomer and polymerization catalyst to a continuous mixing loop reactor (CMLR) having static mixing elements and operated at a temperature between 100 and 240° C. to form a pre-polymerized reaction mixture. The conversion is between 40 and less than 90 wt. %, wherein the cyclic ester monomer comprises lactide having a free acid content lower than 50 milli-equivalents per kg. The pre-polymerized reaction mixture is continuously provided to a plug flow reactor that is a static mixer reactor having static mixing elements and is operated at a temperature between 110-240° C., wherein the reaction mixture is polymerized to a conversion of at least 90%, to form polymer wherein the flow ratio of the CMLR and the plug flow reactor is between 1.5 an d50. The process includes continuously removing polymer from the plug flow reactor devolitizing the polymer.Type: GrantFiled: July 29, 2009Date of Patent: June 20, 2017Assignees: Purac Biochem B.V., Sulzer Chemtech AGInventors: Robert Edgar Haan, Peter Paul Jansen, Siebe Cornelis De Vos, Jan Van Breugel, Peter Willi Kreis, Sarah Borer
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Patent number: 9676902Abstract: Aliphatic-aromatic copolyester comprising the repeating units, which comprise a dicarboxylic component and a dihydroxylic component: —[—O—(R11)—O—C(O)—(R13)—C(O)—]— —[—O—(R12)—O—C(O)—(R14)—C(O)—]—. The dihydroxylic component comprises units —O—(R11)—O— and —O—(R12)—O— from diols, wherein R11 and R12 individually are selected from C2-C14 alkylene, C5-C10 cycloalkylene, C2-C12 oxyalkylene, heterocycles and mixtures thereof. The dicarboxylic component comprises units —C(O)—(R13)—C(O)— from aliphatic diacids and units —C(O)—(R14)—C(O)— from aromatic diacids, wherein R13 is C0-C20 alkylene and mixtures thereof. The aromatic diacids comprise at least one heterocyclic aromatic diacid of renewable origin, and preferably furandicarboxylic acid. The molar percentage of the aromatic diacids is >90% and <100% of the dicarboxylic component. The aliphatic-aromatic copolyester has appreciable workability, toughness and high values for ultimate tensile strength and elastic modulus.Type: GrantFiled: May 24, 2011Date of Patent: June 13, 2017Assignee: NOVAMONT S.P.A.Inventors: Catia Bastioli, Giampietro Borsotti, Luigi Capuzzi, Tiziana Milizia, Roberto Vallero
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Patent number: 9670312Abstract: A process for the production of a flame-retardant polymer is disclosed. The process includes reacting a triol with an organophosphate monochloride material to produce a phosphorus-functionalized hydroxyl material. The process further includes reacting the phosphorus-functionalized hydroxyl material with a polycarboxylic acid to form the flame-retardant polymer. Phosphorus is chemically bound to a polymer chain of the flame-retardant polymer.Type: GrantFiled: February 26, 2015Date of Patent: June 6, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Dylan J. Boday, Joseph Kuczynski, Timothy C. Mauldin
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Patent number: 9624340Abstract: A biorenewable thermoplastic, poly(dihydroferulic acid) (PHFA), which is an effective polyethylene terephthalate (PET) mimic is disclosed. The PHFA can be prepared by the self-condensation of acetyldihydroferulic acid as the monomer that can be synthesized from the starting material-ferulic acid, which can be isolated from lignin, rice bran, or other biorenewable sources.Type: GrantFiled: June 9, 2015Date of Patent: April 18, 2017Assignee: UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.Inventors: Laurent Mialon, Stephen A. Miller
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Patent number: 9617277Abstract: Monomers having the structure and a polymer comprising as part of its polymer backbone a moiety of Formula (II): where one of R6 to R10 represents A-O— and one of R6 to R10 represents —O—B and the remainder of R6 to R10 represent H, where A and B represent the remainder of the polymer backbone and may be the same or different.Type: GrantFiled: November 17, 2015Date of Patent: April 11, 2017Assignee: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATIONInventors: Florian Hans Maximilian Graichen, Benjamin Aldo Leita, Michael Shane O'Shea
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Patent number: 9611354Abstract: Biodegradable photoluminescent polymer (BPLP) which comprises an oligomer synthesized from a multifunctional monomer, a diol, and an amino acid by reacting (i) a multifunctional monomer comprising citric acid or triethyl citrate with (ii) a diol to form a reaction product, and further reacting the reaction product with (iii) an amino acid, wherein the amino acid is linked as a side group to the oligomer backbone. The BPLP of the present invention poses tunable fluorescence emission characteristics and are cell-compatible and biodegradable. The BPLP can serve as both implant materials and bioimaging probes.Type: GrantFiled: September 24, 2015Date of Patent: April 4, 2017Assignee: Board of Regents, The University of Texas SystemInventors: Jian Yang, Santosh Gautam
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Patent number: 9598533Abstract: Described are polyesters comprising (a) a dicarboxylic acid component comprising 80 to 100 mole % terephthalic acid residues; optionally, 0 to 20 mole % aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues; 20 to 30 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 70 to 80 mole % 1,4-cyclohexanedimethanol residues. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.Type: GrantFiled: July 12, 2013Date of Patent: March 21, 2017Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, Thomas Joseph Pecorini, Douglas Stephens McWilliams, David Scott Porter, Gary Wayne Connell, Ted Calvin Germroth, Benjamin Fredrick Barton, Damon Bryan Shackelford
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Patent number: 9580544Abstract: A process for producing copolymers of a polymer and asymmetrically substituted compounds of bisanhydrohexitols, including the bisanhydrohexitol isosorbide. In a specific example, the AB monomer isosorbide 2-(4-carbomethoxybenzoate) is synthesized and copolymerized with polyester to form a copolyester. The asymmetrically substituted compounds provide a way of incorporating bisanydrohexitols that may be derived from natural sources into polymers.Type: GrantFiled: March 17, 2011Date of Patent: February 28, 2017Assignee: New Jersey Institute of TechnologyInventors: Anthony East, Michael Jaffe, Willis Hammond, Xianhong Feng
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Patent number: 9567431Abstract: A process for preparing a polymer having a 2,5-furandicarboxylate moiety within the polymer backbone and having a number average molecular weight of at least 10,000 (as determined by GPC based on polystyrene standards) includes a first step where a prepolymer is made having the 2,5-furandicarboxylate moiety within the polymer backbone, followed in a second step by a polycondensation reaction. Polymers so produced may have a 2,5-furandicarboxylate moiety within the polymer backbone, and having a number average molecular weight of at least 20,000 (as determined by GPC based on styrene standards), and an absorbance as a 5 mg/mL solution in a dichloromethane:hexafluoroisopropanol 8:2 at 400 nm of below 0.05.Type: GrantFiled: December 30, 2009Date of Patent: February 14, 2017Assignee: FURANIX TECHNOLOGIES B.V.Inventor: Laszlo Sipos
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Patent number: 9534079Abstract: Articles, including water bottle(s) having a weight from 200 to 800 grams comprising a polyester composition comprising at least one polyester which comprises: (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid or aliphatic dicarboxylic acid residues; and (b) a glycol component comprising 30 to 40 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and 60 to 70 mole % of 1,4-cyclohexanedimethanol residues; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole and the inherent viscosity of the polyester is from 0.50 to 0.68 dl/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C.; and wherein the polyester has a Tg of from 100 to 140° C.; and wherein the polyester composition contains no polycarbonate.Type: GrantFiled: September 25, 2015Date of Patent: January 3, 2017Assignee: Eastman Chemical CompanyInventors: Emmett Dudley Crawford, Thomas Joseph Pecorini, David Scott Porter, Gary Wayne Connell, Michael James Keegan
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Patent number: 9527995Abstract: A polyester AB is disclosed comprising moieties derived from di- or polyfunctional organic acid compounds A and moieties derived from di- or polyfunctional organic hydroxy compounds B, wherein the compounds A comprise “hard” acid compounds Al selected from the group consisting of isophthalic acid, trimellithic acid anhydride, hexahydrophthalic acid, cyclohexane-1,4-dicarboxylic acid, and tetrahydrophthalic acid, and soft acid compounds A2 selected from the group consisting of adipic acid, dimer fatty acids, and sebacic acid, and the compounds B comprise “hard” hydroxyfunctional compounds selected from the group consisting of trimethylolpropane, 1,2-bishydroxymethyl cyclohexane, and 1,2-dihydroxy-propane, and soft hydroxyfunctional compounds B2 selected from the group consisting of 1,4-butanediol, 1,6-hexanediol, 2,2?-dihydroxydiethyl ether, and 1,2-bis(2-hydroxypropoxy)-propane, and coating compositions prepared from this polyester together with crosslinkers selected from the group consisting of isocyanates,Type: GrantFiled: November 22, 2010Date of Patent: December 27, 2016Assignee: Allnex Austria GmbHInventors: Roland Feola, Johann Gmoser, Oliver Etz
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Patent number: 9527952Abstract: Polymers, including Polyesters and Polycarbonates comprising residue of bis-furan diol, which is produced from renewable furfural feedstock and methods of making and using of those polyesters and polycarbonates are described. The method includes reacting a bis-furan diol with a dicarboxylic acid in the presence of a carbodiimide to produce the bis-furan containing polymers. In certain embodiments, the dicarboxylic acid is succinic acid; the bis-furan diol is the 5,5?-(propane-2,2-diyl)bis(furan-2,5-diyl) dimethanol and the carbodiimide is of N,N-diisopropylcarbodiimide.Type: GrantFiled: February 13, 2015Date of Patent: December 27, 2016Assignee: The University of ToledoInventors: Steven Sucheck, Vishwanath Gaitonde, Maria Coleman
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Patent number: 9518148Abstract: An oxygen-absorbing resin composition comprising a polyester compound having a constitutional unit (a), which has at least one tetralin ring selected from the group consisting of the following general formulas (1) to (4) and a constitutional unit (b) comprising residue of tetrahydrophthalic anhydride derivative which is represented by the following general formula (5) and/or general formula (6).Type: GrantFiled: October 9, 2013Date of Patent: December 13, 2016Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Shinpei Iwamoto, Satoshi Okada, Shinichi Ikeda, Kenichiro Usuda
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Patent number: 9505948Abstract: A thermally decomposable polymer composition comprising a polyester containing repeating units of an ester of diglycolic acid and difunctional tertiary alcohol are disclosed, which are useful in the forming of microelectronic assemblies. A representative example of a composition comprises a thermally decomposable polymer of the formula: wherein n is at least about 20, which provides both tackiness and solder fluxing, among other benefits.Type: GrantFiled: December 12, 2013Date of Patent: November 29, 2016Assignee: PROMERUS, LLCInventors: W. C. Peter Tsang, Andrew Bell, Hongshi Zhen, Keitaro Seto
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Patent number: 9499720Abstract: The present disclosure provides a bio-based, branched polyester resin comprising the condensation product of a hydroxyl donor, including glycerol carbonate, and a cyclic polyhydroxyl acceptor, such as abietic acid, neoabietic acid, palustric acid, levopimaric acid, dihydroabietic acid, pimaric acid, and isopimaric acid, that may be used with a polyacid, including fumaric acid, maleic acid, succinic acid, itaconic acid, dodecylsuccinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid, and dodecane diacid, to form a polyester useful in manufacturing toner for imaging devices.Type: GrantFiled: December 18, 2012Date of Patent: November 22, 2016Assignee: Xerox CorporationInventors: Valerie M Farrugia, Rosa M Duque
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Patent number: 9475956Abstract: The present invention discloses powder coating compositions and to components and ingredients for incorporation therein, suitable for low temperature curing schedule and with excellent resistance to outside aging. The powder coating composition can be cured at a temperature from 140° C. to lead to a coating with excellent flow and high gloss. In one aspect of the invention, a composition having a polyester resin comprises 0.1 to 60 weight percent of mono or poly-functional satured or unsatured fatty acids of mixtures of them, 30 to 60 weight percent of an aromatic diacid or cycloalkyl diacids or anhydride 20 to 30 weight percent of aliphatic diol, 0 to 6 weight percent of aliphatic triol, 0 to 10 weight percent of isosorbide and isomers or cycloalkyl diol, 0 to 10 weight percent of C3-C12 aliphatic diacid, and with total weight percent of the monomers equal to 100.Type: GrantFiled: August 14, 2013Date of Patent: October 25, 2016Assignee: SYNTHOMER USA LLCInventors: Damiano Beccaria, Imir Bejko, Andrea Capra, Irene Panero, Alessandro Munari
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Patent number: 9475217Abstract: A process for making a shaped part from a polymer selected from polyethylene terephthalate (PET) and polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) by using a compacting tool comprising a die having a cavity and a punch having an outer surface. The process comprises the steps of: a) placing particles of the polymer in the cavity of the die heated to a compaction temperature, wherein the polymer has an intrinsic viscosity of at least 0.45 dL/g wherein the particles are a mixture of first particles with a particle size of 0.5-4000 ?m and second particles with a particle size of 1000-4000 ?m b) pressing the particles in the die cavity at a pressure of at least 3 MPa for 5-15 minutes while maintaining the temperature of the die at the compaction temperature and c) removing the shaped part from the die cavity. When the polymer is PET, the compaction temperature is 235-259° C. When the polymer is PEN, the compaction temperature is 250-275 ° C.Type: GrantFiled: January 28, 2014Date of Patent: October 25, 2016Assignee: SAUDI BASIC INDUSTRIES CORPORATIONInventor: Zahir Bashir
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Patent number: 9452981Abstract: A pyroglutamic acid ester of formula (1) in which A represents a C2 to C4 alkylene group; x represents a number from 1 to 100; R? represents an aliphatic, cycloaliphatic or aromatic radical that contains at least one structural unit of formula 2, and; y represents a number from 1 to 100. The use of these pyroglutamic acid esters in quantities of 0.01 to 2% by weight for preventing the formation of gas hydrates in aqueous phases that are connected to a gaseous, liquid or solid organic phase.Type: GrantFiled: December 16, 2011Date of Patent: September 27, 2016Assignee: Clariant Produkte (Deutschland) GmbHInventors: Michael Feustel, Dirk Leinweber
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Patent number: 9447230Abstract: A process for producing a copolyester through the production of an AB monomer of isoidide - Isodide 2-(4-carbomethoxyphenyl) ether. In certain aspects, the AB monomer is produced by performing the steps of: protecting the 2-position of isosorbide with a protecting group; functionalizing the 5-position of isosorbide with a suitable leaving group to form a reactive ester; nucleophilicly displacing the leaving group in a reaction with an alkali metal alkoxide or phenoxide to give an isoidide ether through a stereochemical inversion of the 5-position; and removing the protective moiety to create the AB monomer. In certain embodiments, the copolyester is produced by melting the AB monomer and a polyester, optionally with a catalyst.Type: GrantFiled: March 17, 2011Date of Patent: September 20, 2016Assignee: New Jersey Institute of TechnologyInventors: Michael Jaffe, Willis Hammond, Xianhong Feng, Anthony East