From Carboxylic Acid Or Derivative Thereof Patents (Class 528/271)
  • Patent number: 10463743
    Abstract: The invention provides novel amphiphilic drug-drug conjugates useful as cancer therapeutics, and compositions and methods thereof.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: November 5, 2019
    Assignee: Shanghai Jiao Tong University
    Inventors: Deyue Yan, Ping Huang, Xinyuan Zhu, Wei Huang, Yongfeng Zhou
  • Patent number: 10442889
    Abstract: Coating compositions that include a binder formed from a polyester and a phosphorus acid are disclosed. The binder includes a polyester material formed as the reaction product of a polyacid, a polyol, and a phosphorous acid, wherein the polyester material has a number-average molecular weight (Mn) from about 1,000 Da to 25,000 Da and a polydispersity index (Mw/Mn) of from about 1 to 10. The polyester material is present in the binder composition in amounts of more than about 10 weight percent (wt %). The coating compositions are useful for coating food and/or beverage containers.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 15, 2019
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Kam L. Lock, Richard A. Woods
  • Patent number: 10435368
    Abstract: High heat monomer compounds, methods for preparing compounds, and compositions derived from the compounds are provided. Also provided are materials and articles derived from the compounds.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: October 8, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Edward Norman Peters, Prakash Sista
  • Patent number: 10370542
    Abstract: A thermosetting powder coating material includes powder particles containing a thermosetting resin, a thermosetting agent, and a surfactant. The amount of the surfactant is about 0.1 ppm or more and about 8.0 ppm or less on a mass basis.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: August 6, 2019
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Hirofumi Shiozaki, Susumu Yoshino
  • Patent number: 10358525
    Abstract: A polyester obtained by the esterification of terephthalic acid and ethylene glycol and the polycondensation catalysed by a mixture of magnesium ethylene glycol and antimony ethylene glycol followed by granulation. In the polyester sections, the carboxyl end group is less than 15 mol/t, the mass percentage of oligomer is lower than 0.5%, and weight percentage of diethylene glycol is lower than 0.5%.
    Type: Grant
    Filed: June 12, 2016
    Date of Patent: July 23, 2019
    Assignee: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.
    Inventors: Hongwei Fan, Fangming Tang, Xiaoyu Wang, Wengang Li, Lili Wang, Shanshui Wang, Qianhan Liu, Zangzang Niu
  • Patent number: 10351665
    Abstract: This invention relates to compositions and methods for increasing the crystallization rate and/or processing speed of polyhydroxyalkanoate (PHA) polymers. PHA polymers are notorious for slow crystallization rates, reducing the practicality for using PHA for consumer products. Compounds that have similar crystal structures to PHA and have a melting point higher than that of the PHA, such as pentaerythritol, as well as compounds that undergo a crystal structure change at or below the melting point of the polymer, such as sulfur or selenium, act as good crystal nucleators for PHA.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: July 16, 2019
    Assignee: Meredian Bioplastics, Inc.
    Inventors: Rachelle Arnold, Adam Johnson
  • Patent number: 10344119
    Abstract: Disclosed is a continuous process and device for making polybutylene terephthalate (PBT) resin, particularly high molecular weight PBT resin. The process includes combining 1,4-butane diol and purified terephthalic acid to form a mixture and continuously supplying the mixture to a tower reactor having a plurality of reactor zones for esterification and/or transesterification. The product is continuously supplied to a first continuously stirred tank reactor, and further to a continuous polycondensation reactor. Particular conditions for each step of the process are further described herein. Also disclosed are a device for conducting the process, and a monitoring process for determining the carboxylic acid end group concentration of the resulting PBT.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: July 9, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Husnu Alp Alidedeoglu, Prashant Kumar, Brian Bougher, Cornelis Adrianus Maria van Gool, Sasi Sethumadhavan Kannamkumarath, Bing Zhou
  • Patent number: 10315921
    Abstract: A system and method combine a first reactant with a second reactant to create a reaction product. A first pump is in fluid communication with a reaction vessel and a source of the first reactant. A second pump is in fluid communication with the reaction vessel and a source of the second reactant. A gas sparger is located in the reaction vessel, and the gas sparger is in fluid communication with a gas source for providing gas to the reaction vessel. A controller is configured to execute a program stored in the controller to: (i) receive a sensor signal based on a force exerted by the reaction vessel in a direction toward the sensor, and (ii) operate the first pump and the second pump to deliver to the reaction vessel the first reactant and the second reactant thereby causing a reaction that creates the reaction product.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: June 11, 2019
    Assignee: HYDRITE CHEMICAL CO.
    Inventor: Andy Kenowski
  • Patent number: 10301425
    Abstract: This invention relates to a process for the production of polyesters comprising an esterification/transesterification stage and a polycondensation stage, characterized in that the said polycondensation stage is carried out in the presence of a catalyst comprising a mixture of at least one Titanium-based compound and at least one Zirconium-based compound in which the Ti/(Ti+Zr) ratio by weights is equal to or greater than 0.01 and equal to or less than 0.70.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: May 28, 2019
    Assignee: NOVAMONT S.P.A.
    Inventors: Federico Faiella, Tiziana Milizia, Roberto Vallero
  • Patent number: 10294327
    Abstract: This invention relates to a process for the production of polyesters comprising an esterification/transesterification stage and a polycondensation stage, characterized in that the said polycondensation stage is carried out in the presence of a catalyst comprising a mixture of at least one Titanium-based compound and at least one Zirconium-based compound in which the Ti/(Ti+Zr) ratio by weight is equal to or greater than 0.01 and equal to or less than 0.40.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: May 21, 2019
    Assignee: NOVAMONT S.P.A.
    Inventors: Federico Faiella, Tiziana Milizia, Roberto Vallero
  • Patent number: 10273380
    Abstract: The present invention provides novel packaging articles, e.g., food and beverage cans. Preferred cans typically comprise a body portion and an end portion, wherein at least one of the body and end portions are aluminum and are coated on at least one major surface with a coating composition of the present invention. Suitable coating compositions of the present invention comprise: one or more polyester resins, wherein at least one of the polyester resins has a glass transition temperature (‘Tg’) less than about 50° C., and wherein the polyester resin is formed by the reaction of one or more polyacid molecules and one or more polyol molecules; and a crosslinker. Preferred compositions are substantially free of mobile BPA and aromatic glycidyl ether compounds, e.g., BADGE, BFDGE and epoxy novalacs (e.g., NOGE) and more preferred compositions are also substantially free of bound BPA and aromatic glycidyl ether compounds. In more preferred embodiments (e.g.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: April 30, 2019
    Assignee: The Sherwin-Williams Company
    Inventors: Girish G. Parekh, George K. Bartley, III, Greg M. Paulson, Paul E. Fuchs, Daniel E. Rardon, Robert M. O'Brien
  • Patent number: 10266646
    Abstract: The present invention relates to bio-copolyester of polyethylene terephthalate composition prepared from raw materials which are derived from biomass. The bio-composition comprises: 1) about 92 to about 99 mole % of bioPET, prepared from bioMEG and bioPTA, 2) about 1 to about 8 mole % bio-based acids, bio-based diols and/or bio-based branching agents. Bio-based acids include bio-aliphatic diacids or bio-aromatic diacids, or their corresponding bio-esters, or a mixture thereof. Bio-based diols include bio-aliphatic diol comprising 3 to 20 carbon atoms, bio-cycloaliphatic diol of 6 to 20 carbon atoms, or bio-aromatic diol comprising 6 to 14 carbon atoms, or a mixture thereof. Bio-based branching agents include bio-aliphatic compounds having more than two functionalities such as bio-trimellitic anhydride, bio-trimethylol propane, or bio-pentaerythritol, or a blend thereof.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: April 23, 2019
    Assignee: Auriga Polymers, Inc.
    Inventor: Sanjay Mehta
  • Patent number: 10253208
    Abstract: Cutin-based devices, coatings and methods of producing such devices and coatings are presented herein. Cutin-like materials (CLMs) are presented which mimic and adapt coatings found in nature for the next generation of functional coatings. Cutin has several advantages including excellent UV resistance, natural resistance to bacteria and viruses, noncorrosive, and stability under abrupt changes in temperature and environment. CLMs can be engineered at the nanoscale and readily impregnated with metals and metal oxides materials.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: April 9, 2019
    Assignee: University of South Florida
    Inventors: Norma Arcelia Alcantar, Ryan Gates Toomey, Fei Guo, Zeinab Veisi, Tunan Peng
  • Patent number: 10233282
    Abstract: A process for making oligomers of polybutylene terephthalate (PBT) with desirable intrinsic viscosity and carboxylic end group concentrations includes combining 1.4-butane diol (BDO). terephthalic acid and a catalyst to from a mixture and heating the mixture until the clearing point is reached based on visual inspection. The PBT oligomers are used in a continuous process for making polybutylene terephthalate (PBT) resin.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: March 19, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Husnu Alp Alidedeoglu, Prashant Kumar, Osit Karroonnirun, Mark Nelson
  • Patent number: 10207446
    Abstract: The present invention relates to a continuous process for preparing a comb polymer, without organic solvent, by esterification and/or amidification of an acidic homopolymer or copolymer, which consists in performing the esterification and/or amidification of said homopolymer/copolymer by reaction at elevated temperature in the mixing and transportation zone of a tubular reactor, optionally equipped with a water removal system, in the presence of at least one poly(alkylene glycol) in solid or molten form and of an antioxidant, said esterification and/or amidification taking place at a temperature greater than or equal to 170° C.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: February 19, 2019
    Assignee: COATEX
    Inventors: Jean-Marc Suau, David Platel, Clementine Champagne, Yves Matter
  • Patent number: 10202488
    Abstract: The present invention relates to an isocyanate-free and preferably solvent-free process for preparing polymers containing five-membered cyclic carbonate groups. In particular, the present invention is directed to a process for preparing polymers bearing cyclic carbonate groups by reacting carboxyl-bearing polymers selected from the group including polyesters based on di- or polyols and di- or polycarboxylic acids or derivatives thereof or poly(meth)acrylates, with hydroxyl-functionalized five-membered cyclic carbonates, without addition of isocyanates.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: February 12, 2019
    Assignee: Evonik Degussa GmbH
    Inventors: Christina Cron, Gabriele Brenner
  • Patent number: 10174199
    Abstract: A resin composition which suppresses the decomposition of a polycarbonate resin at the time of molding while it retains the excellent characteristic properties of a polyarylene sulfide resin and has the excellent toughness, impact strength and burr reducing property of the polycarbonate resin. The resin composition comprises (A) 99 to 1 part by weight of a polyarylene sulfide resin (component A) having a degree of dispersion (Mw/Mn) represented by weight average molecular weight (Mw) and number average molecular weight (Mn) of not less than 2.7 and (B) 1 to 99 parts by weight of a polycarbonate resin (component B) and has a total chlorine content of not more than 550 ppm and a total sodium content of not more than 30 ppm.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: January 8, 2019
    Assignee: TEIJIN LIMITED
    Inventor: Tomomitsu Onizawa
  • Patent number: 10155848
    Abstract: The efficient production of poly(tetramethylene ether) diacetate [PTMEA] or other diesters, from tetrahydrofuran [THF] is obtained utilizing an acid-based catalyst that is based on a morphologically reconfigured and Bronsted acidity enhanced halloysite derived from a preparation method of using naturally occurring halloysites. More specifically, the method relates to morphological modification of the internal pore structure of halloysites via supercritical carbon dioxide treatment directly applied onto the raw halloysite minerals, that yields highly synergistic and reproducible results of elimination of inaccessible and detrimental extra-small pores.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: December 18, 2018
    Assignee: KOREA PTG CO., LTD.
    Inventors: Hyung Ju Kim, Hwan Bock Lee, Jung Keun Lee
  • Patent number: 10150836
    Abstract: The efficient production of poly(tetramethylene ether) diacetate [PTMEA] or other diesters, from tetrahydrofuran [THF] is obtained utilizing an acid-based catalyst that is based on a morphologically reconfigured and Bronsted acidity enhanced halloysite derived from a preparation method of using naturally occurring halloysites. More specifically, the method relates to morphological modification of the internal pore structure of halloysites via supercritical carbon dioxide treatment directly applied onto the raw halloysite minerals, that yields highly synergistic and reproducible results of elimination of inaccessible and detrimental extra-small pores. PTMEA is readily converted to poly(tetramethylene ether) glycol (PTMEG) by a transesterification reaction.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: December 11, 2018
    Assignee: KOREA PTG CO., LTD
    Inventors: Hyung Ju Kim, Hwan Bock Lee, Jung Keun Lee
  • Patent number: 10113029
    Abstract: The present invention provides spherical monodispersed polyester resin particles and an aqueous dispersion thereof in an easy and inexpensive way, and a cosmetic product having fine extensibility, which has fine water resistance and smooth touch, and does not provide uncomfortable feeling to the skin.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 30, 2018
    Assignee: MIYOSHI OIL & FAT CO., LTD.
    Inventors: Koichi Niizeki, Masahiro Okuya
  • Patent number: 10113063
    Abstract: Compositions comprising A) 50 to 95 parts by weight of at least one polymer selected from the group consisting of aromatic polycarbonate and aromatic polyestercarbonate, B) 5 to 50 parts by weight of at least one branched polyester, the polyester being derived from succinic acid and optionally further dicarboxylic acids and aliphatic, cycloaliphatic or araliphatic diols, C) 0 to 20 parts by weight of graft polymer, D) 0 to 20 parts by weight of vinyl (co)polymer and/or polyalkylene terephthalate, E) 0.0 to 30 parts by weight of additives, the parts by weight being standardized to the total weight of the composition and also the use of these hydrolysis-stable polycarbonate/polyester compositions for producing shaped bodies, and the shaped bodies themselves, where the polyester in the composition can be obtained or prepared preferably from renewable raw materials.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: October 30, 2018
    Assignee: COVESTRO DEUTSCHLAND AG
    Inventors: Mathieu Jung, Ralf Hufen
  • Patent number: 10087281
    Abstract: A polymer is provided having at least one repetitive unit represented by the following formula: And, preferably at least one, preferably at least two, repetitive units represented by the following formula:
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: October 2, 2018
    Assignees: Pivert, Université de Bordeaux, Institut Des Corps Gras Etudes ET Recherches Techniques—ITERG, Institut Polytechnique de Bordeaux, Centre National de la Recherche Scientifique
    Inventors: Henri Cramail, Etienne Grau, Blandine Testud, Daniel Taton, Didier Pintori
  • Patent number: 10072118
    Abstract: The present invention relates to a polycyclohexylenedimethylene terephthalate (PCT) resin having enhanced crystallization speed and a method for preparing same. A PCT resin, according to an embodiment of the present invention, comprises: a reactant of (A) a dicarboxylic acid compound or a dicarboxylic acid ester compound and (B) a diol compound total of which 90 mol % or more is cyclohexanedimethanol; and 10-1000 ppm of antimony (Sb) atoms on the basis of the total weight of the resin, wherein the differential between the melting point (Tm) and a reduced crystallization temperature (Tmc) is 45° C. or lower. A PCT resin, according to the present invention, has high crystallization speed and thus enables fast production of various molded products. In particular, the PCT resin has high crystallization temperature and high heat resistance and thus enables fast production of a high-quality heat-resistant molded product by means of injection molding.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: September 11, 2018
    Assignee: SK Chemicals Co., Ltd.
    Inventors: Jung-Me Moon, Tae-Young Kim, Su-Min Lee
  • Patent number: 10053577
    Abstract: The invention molecularly equips polyester or polyolefin molding compositions in situ with zinc ions before extrusion, enabling direct processing of the molding compositions from the melt even at high temperatures and ensuring a long-term antibacterial action. The inventive molding compositions include at least one polyester polymer or polyolefin polymer and at least one zinc salt-organoligand complex.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: August 21, 2018
    Assignee: THUERINGISCHES INSTITUT FUER TEXTIL-UND KUNSTSTOFF-FORSCHUNG E.V.
    Inventors: Rüdiger Strubl, Klaus Heinemann, Frank Schubert, Ralf-Uwe Bauer, Sabine Riede
  • Patent number: 10041192
    Abstract: The present invention discloses an ultra-low shrinkage polyester industrial yarn and its preparation method. The ultra-low shrinkage polyester industrial yarn is prepared by subjecting a polyester to dissolution, washing and solid state polycondensation followed by spinning. The ultra-low shrinkage polyester industrial yarn has a dry heat shrinkage rate of 1.8±0.25% under test conditions of 177° C.×10 min×0.05 cN/dtex. The polycondensation catalyst consists of magnesium ethylene glycol and antimony ethylene glycol, has a small thermal degradation coefficient. The present invention reduces oligomers during polymerization, reduces thermal degradation during processing, and as a result the invention greatly reduces impurities and nucleating agent in the polyester, leading to an increase in the probability of homogeneous nucleation based on the reduction of heterogeneous nucleation.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: August 7, 2018
    Assignee: JIANGSU HENGLI CHEMICAL FIBRE CO., LTD.
    Inventors: Huirong Zhao, Xiaobing Fan, Chaoming Yang, Lijun Wang
  • Patent number: 10030117
    Abstract: An object of the present invention is to: improve slowness of crystallization that is a drawback of polyhydroxyalkanoate; suppress bloom of a nucleating agent or the like; and improve surface smoothness and mold transferability of an obtained molded body. The present invention provides an aliphatic polyester resin composition including polyhydroxyalkanoate (A), pentaerythritol (B), and a filler (C).
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: July 24, 2018
    Assignee: KANEKA CORPORATION
    Inventors: Ryohei Koyama, Tetsuya Minami, Noriyuki Suzuki
  • Patent number: 10010838
    Abstract: A dispersing resin of formula (I), T-P-Z-T (I). The dispersin resin of this formula is defined where T is at least one monocarboxylic acid, where Z includes at least one of a polyallylamine and a poly(C2-4-alkyleneimine), and where P is a polyester obtained by a process of reacting a dicarboxylic or a polycarboxylic acid and a diol or a polyol.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: July 3, 2018
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Philippe Favresse, Andre Broetzmann, Anette Vogt, Katrin Roland, Thorsten Schierle, Irina Maedche, Christian Maus
  • Patent number: 9982092
    Abstract: The efficient production of poly(tetramethylene ether) diacetate [PTMEA] or other diesters, from tetrahydrofuran [THF] is obtained utilizing an acid-based catalyst that is based on a morphologically reconfigured and Bronsted acidity enhanced halloysite derived from a preparation method of using naturally occurring halloysites. More specifically, the method relates to morphological modification of the internal pore structure of halloysites via supercritical carbon dioxide treatment directly applied onto the raw halloysite minerals, that yields highly synergistic and reproducible results of elimination of inaccessible and detrimental extra-small pores. PTMEA is readily converted to poly(tetramethylene ether) glycol (PTMEG) by a transesterification reaction.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: May 29, 2018
    Assignee: KOREA PTG CO., LTD
    Inventors: Hyung Ju Kim, Hwan Bock Lee, Jung Keun Lee
  • Patent number: 9963538
    Abstract: The present invention relates to new catalysts for curing solventborne or solvent-free coating compositions, such as 2-component polyurethane coating materials or 2-component polyurethane adhesives.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: May 8, 2018
    Assignee: BASF SE
    Inventors: Harald Schaefer, Andreas Eichfelder, Boris Gaspar, Thorsten Pauen
  • Patent number: 9963543
    Abstract: Disclosed is a bio-based polycarbonate ester comprising: (i) repeat unit 1 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and carbonate; and (ii) repeat unit 2 obtained from a condensation reaction of 1,4:3,6-dianhydrohexitol and 1,4-cyclohexanedicarboxylate; and a preparation method for the bio-based polycarbonate ester, comprising the steps of: (1) preparing a compound 1,4-diphenyl-cyclohexanedicarboxylate through a trans-esterification or esterification reaction of a compound represented by formula 2 and phenol; and (2) preparing a compound comprising a repeat unit represented by formula 1 through a polycarbonate melt polycondensation reaction of the 1,4-diphenyl-cyclohexanedicarboxylate prepared in step (1), a compound represented by formula 4 and 1,4:3,6-dianhydrohexitol.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: May 8, 2018
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Kwang Sei Oh, Il-Hoon Cha, Ji-hoon Kim
  • Patent number: 9796895
    Abstract: Embodiments of the present disclosure are directed towards using a carbon-Michael compound. As an example, a method of using a carbon-Michael compound to reduce heat transfer can include locating the carbon-Michael compound between a heat provider and a heat receptor, where the carbon-Michael compound is a reaction product of a multifunctional acrylate compound with a multifunctional Michael donor, and the heat provider has a temperature from 100 C to 290 C.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: October 24, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Xin Jin, Dwight Latham, Steven Crain, Mark Sonnenschein
  • Patent number: 9765198
    Abstract: Provided is a resin composition excellent in processability and productivity, which improves low crystallization rate and improves processability in forming such as injection molding or sheet forming. Provided is a polyester resin composition including a polyester resin (A), a crystallization promoter (B), and pentaerythritol (C).
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: September 19, 2017
    Assignee: KANEKA CORPORATION
    Inventors: Ryohei Koyama, Tetsuya Minami, Noriyuki Suzuki
  • Patent number: 9754908
    Abstract: A method includes forming a passivation layer over a metal pad, wherein the metal pad is further overlying a semiconductor substrate of a wafer. A Post-Passivation Interconnect (PPI) is formed to electrically couple to the metal pad, wherein a portion of the PPI is overlying the passivation layer. A metal bump is formed over and electrically coupled to the PPI. The method further includes applying a molding compound over the metal bump and the PPI, applying a release film over the molding compound, pressing the release film against the molding compound, and curing the molding compound when the release film is pressed against the molding compound. The release film is then removed from the molding compound. The wafer is sawed into dies using a blade, with the blade cutting through the molding compound.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: September 5, 2017
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Chung-Shi Liu, Chia-Wei Tu, Ming-Da Cheng, Wen-Hsiung Lu, Yu-Peng Tsai
  • Patent number: 9696644
    Abstract: The present invention provides a crystalline polyester resin having a sharp melt property that realizes both fixing performance and blocking property and demonstrates favorable charging performance, in which the crystalline polyester resin for toner, satisfying the following relationships, 25?Tg?70, and (Tg+273)/(Mp+273)?0.75, wherein Tg (° C.) represents a glass transition temperature of the crystalline polyester resin for toner, and Mp (° C.) represents a melting point of the crystalline polyester resin for toner.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: July 4, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hayato Ida, Takashi Hirasa, Junichi Tamura, Yuya Chimoto, Takaho Shibata, Daisuke Yamashita
  • Patent number: 9688811
    Abstract: A method for synthesizing poly(butylene succinate) (PBS) having a weight average molecular weight (Mw) equal to or larger than 1.4×105. The method employs biogenic guanidine (BG) as the main catalyst and includes: a) adding succinic acid (SA), 1.4-butanediol (BDO), and biogenic guanidine to a reactor, heating the reactor to a temperature of between 180 and 200° C. and conducting the esterification between succinic acid and 1.4-butanediol for 2 to 3 hours under atmospheric pressure until all of the water is distilled or boiled off; and b) adding a first cocatalyst, a second cocatalyst, and a third cocatalyst to the reactor, adjusting the absolute pressure in the reactor to be between 0.5 and 3 torr, and polycondensing the mixture in the reactor at the temperature between 210 and 230° C. over 20 to 30 hours.
    Type: Grant
    Filed: September 12, 2016
    Date of Patent: June 27, 2017
    Assignee: NANJING UNIVERSITY
    Inventors: Hong Li, Quanxing Zhang, Yiting Song, Xiangqian Sun, Wei Huang, Aimin Li
  • Patent number: 9676897
    Abstract: To suppress deterioration of mechanical properties of a foam, by using a polyol system solution stored. A polyol system solution is prepared by using a polyether polyol (A1) having a hydroxy value of from 5 to 45 mgKOH/g and an average number of hydroxy groups of from 2 to 8, obtainable by subjecting an alkylene oxide to ring-opening addition polymerization to an initiator, in the presence of a double metal cyanide complex catalyst, to obtain an intermediate polyol; and subjecting ethylene oxide to a ring-opening addition polymerization in an amount of from 1 to 23 mol per 1 mol of the initiator to the intermediate polyol, in the presence of an alkali metal hydroxide as a polymerization catalyst, and a flexible polyurethane foam is produced by using the polyol system solution.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: June 13, 2017
    Assignee: Asahi Glass Company, Limited
    Inventors: Takayuki Sasaki, Takashi Ito, Akio Horie, Chitoshi Suzuki, Takeaki Arai, Masahito Furumi
  • Patent number: 9676939
    Abstract: Provided herein are polycarbonate blend compositions, methods for making polycarbonate blend compositions and articles containing the polycarbonate blend composition, wherein the polycarbonate blend composition comprises a first polycarbonate and a second polycarbonate wherein the polycarbonate blend has a glass transition temperature (Tg) between 148° C. and 155° C. as measured using a differential scanning calorimetry method; a percent (%) haze of less than 3.5% and a % transmission of greater than 80% as measured using a method of ASTM D 1003-07, and wherein the blend composition possesses 80% or greater ductility in a notched izod test at ?20° C. at a thickness of 0.125 inches according to ASTM D256-10.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: June 13, 2017
    Assignee: SABIC Global Technologies B.V.
    Inventors: Niles Rosenquist, Srinivas Siripurapu
  • Patent number: 9670358
    Abstract: Disclosed herein is an aliphatic polyester resin composition that simultaneously improves slow crystallization, low impact strength, and low tensile elongation that are the drawbacks of a polyhydroxyalkanoate. The aliphatic polyester resin composition comprises: a polyhydroxyalkanoate (A); a graft copolymer (B); and pentaerythritol (C), wherein the graft copolymer (B) is obtained by graft polymerization of a vinyl-based monomer onto at least one rubber selected from the group consisting of a composite rubber (b1) comprising a polyorganosiloxane component and a polyalkyl(meth)acrylate component, an acrylic rubber (b2), and a diene-based rubber (b3) comprising a diene-based monomer.
    Type: Grant
    Filed: January 16, 2014
    Date of Patent: June 6, 2017
    Assignee: KANEKA CORPORATION
    Inventors: Tetsuya Minami, Noriyuki Suzuki
  • Patent number: 9657145
    Abstract: Disclosed are transition metal or group II metal ester polymers where the metal is an alkaline earth, transition metal or aluminum; methods of manufacture, and uses thereof. The metal ester polymers exhibit both high dielectric constant and low conductivity suitable for use as dielectric insulating materials.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: May 23, 2017
    Assignee: THE UNIVERSITY OF CONNECTICUT
    Inventors: Gregory Allen Sotzing, Aaron Baldwin
  • Patent number: 9637591
    Abstract: A polyester having a saturated backbone, a method of preparing said polyester, an intermediate unsaturated polyester product, and a method for preparing said intermediate unsaturated polyester product, where the number of carbon backbone atoms between two neighboring ester groups in the backbone is randomly distributed over the polyester, and the polyester has an M/E ratio of 14 or more, wherein M is the number of backbone carbon atoms in the polyester not including the ester carbons and E is the number of ester groups in the polyester.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: May 2, 2017
    Assignee: SAUDI BASIC INDUSTRIES CORPORATION
    Inventors: Robbert Duchateau, Mark Petrus Franciscus Pepels
  • Patent number: 9637589
    Abstract: Provided is a method of continuous preparation of a biodegradable aliphatic/aromatic polyester copolymer, the method including: performing a first esterification reaction of an aliphatic dihydroxy compound and an aliphatic dicarboxylic acid at a temperature of 185° C. or less; continuously performing a second esterification reaction of a reaction product obtained by the first esterification reaction; obtaining a pre-polymer by continuously performing a first polycondensation reaction of a reaction product obtained by the second esterification reaction; and continuously performing polycondensation reaction of the pre-polymer, wherein an aromatic carboxylic acid is added to a reactor in which the first esterification reaction or the second esterification reaction is performed, to prepare the biodegradable aliphatic/aromatic polyester copolymer.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: May 2, 2017
    Assignees: LOTTE FINE CHEMICAL CO., LTD., S-ENPOL CO., LTD.
    Inventors: Gyung Don Kang, Ki Chull Yun, Sang Yob Kim, Kil Seuk Byun, Jung Ryum, Boo Seong Kim, Sei Hoon Kim, Sung Bae Park
  • Patent number: 9624357
    Abstract: The present invention relates to a polycyclohexylene-dimethylene terephthalate resin composition, more specifically to an economical, high color-resistant, flame-retardant polycyclohexylene-dimethylene terephthalate resin composition containing a non-halogen flame retardant aid, bis(2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane-1-oxo-4-hydroxymethyl) phenylphosphonate. Further, a flame-retardant molded article using features of a resin composition according to the present invention may be used as various electrical and electronic components including display or automobile parts.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: April 18, 2017
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Jin Hwan Kim, Soo Jung Kang, Hai Yan An
  • Patent number: 9617378
    Abstract: A method of preparing a biodegradable polyester resin is provided. The method of preparing a biodegradable polyester resin includes: (a) synthesizing the biodegradable polyester resin having a reheating crystallization initiation temperature (Tch1), a reheating crystallization peak temperature (Tch), and a reheating crystallization end temperature (Tch2); and (b) crystallizing the biodegradable polyester resin synthesized in step (a) by cooling the resin from a temperature of T1 to a temperature of T2 and then maintaining the resin at a temperature of T2 for a time of tc. Thus, the biodegradable polyester resin with improved solidification rate may be obtained.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: April 11, 2017
    Assignee: LOTTE FINE CHEMICAL CO., LTD.
    Inventors: Ye Jin Kim, Gyung Don Kang, Ki Chull Yoon
  • Patent number: 9610387
    Abstract: Methods of making polymeric devices, such as stents, with one or more modifications such as addition of plasticizers, to improve processing, and the devices made by these methods.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: April 4, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Syed F. A. Hossainy, Stephen D. Pacetti
  • Patent number: 9605280
    Abstract: The invention relates to the field of modifying E. coli through genetic engineering. Specifically, the invention provides an E. coli containing a mutated lpdA gene. The invention also relates to use of the E. coli in the production of chemical material such as ethanol, and succinate etc. The invention also provides a method of producing chemical materials such as ethanol and succinate etc. by using the E. coli, as well as a method for increasing the activity of pyruvate dehydrogenase in E. coli by introducing a mutated lpdA gene.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: March 28, 2017
    Assignee: TIANJIN INSTITUTE OF INDUSTRIAL BIOTECHNOLOGY, CHINESE ACADEMY OF SCIENCES
    Inventors: Xueli Zhang, Xinna Zhu, Jing Chen
  • Patent number: 9540483
    Abstract: The present invention provides a crystalline polyester resin which has sharp melt property, can achieve both fixing performance and blocking property and has excellent development durability, in which the crystalline polyester resin for toner which has a Young's modulus as measured by an ultramicro durometer at 25° C. of at least 2 GPa and a melting point of at least 60° C. and not more than 125° C.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: January 10, 2017
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Hayato Ida, Takashi Hirasa, Junichi Tamura, Yuya Chimoto, Takaho Shibata, Daisuke Yamashita
  • Patent number: 9487623
    Abstract: A preparation method of a polycyclohexylenedimethylene terephthalate resin according to the present invention includes the steps of injecting a titanium compound and a germanium compound as catalysts to a mixture of a diol compound and dicarboxylic acid under stirring and performing esterification reaction and polycondensation reaction, in which the titanium compound is injected in a titanium atom content of 20 ppm or less, based on the weight of the final polycyclohexylenedimethylene terephthalate resin. The preparation method of the polycyclohexylenedimethylene terephthalate resin according to the present invention can be used to prepare a polycyclohexylenedimethylene terephthalate resin that has excellent degree of polymerization, color and light reflectance and has remarkably improved heat stability, and it is suitable to use the polycyclohexylenedimethylene terephthalate resin according to the present invention as an LED housing material.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: November 8, 2016
    Assignee: SK CHEMICALS CO., LTD.
    Inventors: Jung-Me Moon, Tae-Young Kim, Jong Ryang Kim
  • Patent number: 9234075
    Abstract: A method of preparing polylactic acid by combining lactide with a main catalyst and cocatalyst, wherein the main catalyst includes an organometallic compound and a cocatalyst includes a nanoparticle; as well as a composition are provided.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: January 12, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SNU R&DB FOUNDATION
    Inventors: Younghoon Lee, Chansu Kim, Hail Kwon, Changduk Kang, Jongchan Lee, Kwangmyung Cho, Sangho Cha, Hyunkee Hong
  • Patent number: 9234080
    Abstract: There is disclosed a conductive resin composition, comprising: (a) a resin component, and (b) a fine carbon fiber dispersed in the resin component, wherein a graphite-net plane consisting solely of carbon atoms forms a temple-bell-shaped structural unit comprising closed head-top part and body-part with open lower-end, 2 to 30 of the temple-bell-shaped structural units are stacked sharing a common central axis to form an aggregate, and the aggregates are connected in head-to-tail style with a distance to form the fiber. The resin composition has high conductivity while maintaining the original physical properties of the resin.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: January 12, 2016
    Assignee: Ube Industries, Ltd.
    Inventors: Hideya Yoshitake, Masayuki Nishio, Tsunao Matsuura, Kenji Fukuda, Ken Nakamura, Keiichirou Koyashiki, Masaki Yoshio, Hirofumi Takemoto
  • Patent number: 9193824
    Abstract: An object of the present invention is to provide a polycarbonate resin composition comprising a polycarbonate resin containing, as a raw material, isosorbide that is easy to produce and excellent in such as mechanical properties, etc., and a molded body, particularly a foam-molded body, composed of the resin composition. The present invention provides a foam-molded body of a resin composition containing a polycarbonate resin having at least a structural unit derived from a dihydroxy compound represented by the following formula (1): wherein the strain-hardening factor of uniaxial extensional viscosity of said resin composition is from 0.1 to 5.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: November 24, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Katsushi Yamaoka, Toru Takashima