Patents Examined by Gennadiy Mesh
  • Patent number: 8552081
    Abstract: The present invention is a high modulus bio-based polymer plastic composition or mixture and methods of preparing the same. The composition is formed from the reaction of a bio-based epoxidized triglyceride oil, an energy activated catalyst and a bio-based non-aromatic cross-linking compound to form a structural polymer plastic. The bio-based epoxidized triglyceride oil is selected from a bio-based epoxidized triglyceride or a bio-based acrylated epoxidized triglyceride. The non-aromatic cross-linking compound is selected from itaconic acid or itaconic anhydride, and the energy activated catalyst is activated by UV radiation or heat.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: October 8, 2013
    Assignee: South Dakota School of Mines and Technology
    Inventors: David A. Boyles, Mohammad S. Al-Omar
  • Patent number: 8552141
    Abstract: A hyper-branched polyester and a method of making the same having a tri-functional monomer A3, a di-functional monomer B2 and a mono-functional monomer C1 having a monomer ratio of A3:B2:C1 from about 1:0.2:2 to about 1:1.4:0.2 for use in a chemically processed electrophotographic toner providing a lower fusing temperature. In one form, the hyper-branched polyester includes a tri-hydroxy monomer, a di-acid and its derivatives, and a mono-acid and its derivatives. In other forms, a substituted anhydride and a long chain hydrocarbon carboxylic acid and its derivatives may also be included in the di-functional monomer.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: October 8, 2013
    Assignee: Lexmark International, Inc.
    Inventors: Charles Edward Akers, Jr., Michael James Bensing, John Joseph Kraseski, Claudia Alexandra Marin, Jing X. Sun
  • Patent number: 8530611
    Abstract: In one aspect, the present invention describes biodegradable photoluminescent polymer (BPLP) compositions. In some embodiments, an aliphatic biodegradable photoluminescent polymer (BPLP) composition comprises a degradable oligomer, wherein the oligomer is synthesized from a diol, an amino acid, and a biocompatible multifunctional carboxylic acid comprising a hydroxyl group. The amino acid is linked as a side group to the degradable oligomer backbone, and fluorescence emanates from a 6-membered ring formed by a carboxylic acid group of the amino acid, an alpha carbon of the amino acid, an amide linkage formed by an amino group of the amino acid, and a central carbon of the multifunctional carboxylic acid via an esterification reaction of the carboxylic acid group of the amino acid and the hydroxyl group of the multifunctional carboxylic acid.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: September 10, 2013
    Assignee: Board of Regents, The University of Texas System
    Inventors: Jian Yang, Santosh Gautam
  • Patent number: 8524036
    Abstract: The present invention relates to cost-effective and environmentally friendly polyester surfactants for use in flotation deinking. The improved ink collection of the present invention can result in deinked pulp of high quality and/or yields that has excellent brightness and effective residual ink concentration values.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: September 3, 2013
    Assignee: Kemira Chemicals, Inc.
    Inventors: Terrence Cotter, Scott Rosencrance, Robert Wilson
  • Patent number: 8513379
    Abstract: The invention provides a depolymerization method for a polymer containing an ester bond in a main chain, by causing a solid acid catalyst to act on a polymer containing an ester bond in a main chain to depolymerize the polymer, thereby obtaining a re-polymerizable monomer and/or oligomer as a depolymerization product, and a method for producing a polymer containing an ester bond in a main chain, by polymerizing the re-polymerizable monomer and/or oligomer obtained by the depolymerization method.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: August 20, 2013
    Assignee: Keio University
    Inventor: Shuichi Matsumura
  • Patent number: 8507644
    Abstract: Methods of making metal-terephthalate polymers from a polyester ethylene terephthalate or terephthalic acid produces high yield and high purity reaction products for a range of metals. Among the preferred metal compounds employed in the processes are metal oxides and metal hydroxides. The methods are preferably carried out at a low pressure and can produce metal-terephthalate polymer powders containing small crystals which can be employed to enhance properties of polymers or disperse metals in specific applications by thermal decomposition of metal-terephthalate polymers.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: August 13, 2013
    Assignee: Chem Engineering Energy
    Inventors: Daniel Eric Steinmeyer, Jonathan Lyle Wistrom
  • Patent number: 8507638
    Abstract: Described are polyesters comprising (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues; 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and cyclohexanedimethanol residues. The polyesters have a desirable combination of inherent viscosity and glass transition temperature (“Tg”). The polyesters can have an inherent viscosity from 0.35 to 1.2 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C. and a Tg of 85 to 115° C. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: August 13, 2013
    Assignee: Eastman Chemical Company
    Inventors: Emmett Dudley Crawford, Thomas Joseph Pecorini, Douglas Stephen McWilliams, David Scott Porter, Gary Wayne Connell, Ted Calvin Germroth, Benjamin Fredrick Barton, Damon Bryan Shackelford
  • Patent number: 8455612
    Abstract: A one pot method of preparing cyclic carbonyl compounds comprising an active pendant pentafluorophenyl ester group is disclosed. The cyclic carbonyl compounds can be polymerized by ring opening methods to form ROP polymers comprising repeat units comprising a side chain pentafluorophenyl ester group. Using a suitable nucleophile, the pendant pentafluorophenyl ester group can be selectively transformed into a variety of other functional groups before or after the ring opening polymerization.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: June 4, 2013
    Assignees: International Business Machines Corporation, Central Glass Co., Ltd.
    Inventors: Masaki Fujiwara, James Lupton Hedrick, Daniel Paul Sanders, Yoshiharu Terui, Manabu Yasumoto
  • Patent number: 8440782
    Abstract: Method for producing polyesters using titanium atrane catalysts is disclosed. Also disclosed are methods for making the titanium atrane catalysts. The titanium atrane catalysts are useful as esterification and/or polycondensation catalysts, have similar activity, color and byproduct formation as conventional catalyst systems, but with reduced toxicity and regulatory concerns.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: May 14, 2013
    Assignee: Equipolymers GmbH
    Inventors: Jens-Peter Wiegner, Volkmar Voerckel, Dietmar Runkel, Rolf Eckert
  • Patent number: 8440769
    Abstract: A copolyester composition comprising units of residues of a) about 1-40 mole % of trans 3,3?, trans 4,4? stilbene dicarboxylic acid and the combination thereof, b) about 99-60 mole % of cis,trans, and the combination thereof of 1,4 cyclohexane dicarboxylic acid, and c) about 50-100 mole % of cis, trans, and the combination thereof of 1,4-cyclohexane dimethanol. The resulting copolyester may be characterized by its clarity, as well as enhanced heat performance due to the presence of the stilbene moiety.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: May 14, 2013
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Ganesh Kannan, Steven James Montgomery
  • Patent number: 8436097
    Abstract: A process for producing a modified polymer rubber comprising the steps of: (1) polymerizing a conjugated diene monomer or a combination thereof with an aromatic vinyl monomer in a hydrocarbon solvent, in the presence of an alkali metal catalyst or a specified alkali metal compound, to form an alkali metal end-carrying active polymer, and (2) reacting the alkali metal end-carrying active polymer with a specified isocyanurate compound or a combination thereof with a specified coupling agent in a hydrocarbon solvent.
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: May 7, 2013
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Katsunari Inagaki, Seiichi Mabe, Mayumi Oshima
  • Patent number: 8420769
    Abstract: Provide are a novel polyester resin that can be used for producing a molded article excellent in impact resistance, and a method of producing the polyester resin. The polyester resin has structural units represented by the following general formulae (1) and (2), and contains the structural unit represented by the general formula (2) at a content of 50.1 mol % or more to 99.9 mol % or less with respect to the total of the structural units represented by the general formulae (1) and (2). The method of producing a polyester resin, includes copolymerizing a furandicarboxylic acid or an ester thereof with ethylene glycol and diethylene glycol. In the formula, R1 represents an aromatic hydrocarbon group which may be substituted, or an aliphatic hydrocarbon group which may be substituted.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: April 16, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Shinji Eritate
  • Patent number: 8415450
    Abstract: Described are polyester compositions comprising at least one polyester which comprises terephthalic acid residues, 2,2,4,4-tetramethyl-l,3-cyclobutanediol, and 1,4-cyclohexanedimethanol, wherein the inherent viscosity of said polyester is from 0.55 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.; wherein said polyester has a Tg from 110 to 160° C.; wherein the polyester composition comprises no polycarbonate; wherein the melt viscosity of the polyester is less than 10,000 poise as measured at 1 radian/second on a rotary melt rheometer at 290° C.; and wherein the polyester has a notched Izod impact strength, of at least 7.5 ft-lb/in.ch at 23° C. according to ASTM D256 with a 10-mil notch in a ? inch thick bar. The polyesters may be manufactured into articles of manufacture as fibers, films, bottles or sheets.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: April 9, 2013
    Assignee: Eastman Chemical Company
    Inventors: Emmett Dudley Crawford, Thomas Joseph Pecorini, Douglas Stephens McWilliams, David Scott Porter, Gary Wayne Connell
  • Patent number: 8398600
    Abstract: Provided is a prefilled syringe comprising, as a resin constituting at least a barrel and a joint, a polyester resin that contains a diol unit having a cyclic acetal skeleton in an amount of from 1 to 30% by mol based on diol units and a dicarboxylic acid unit having a naphthalene skeleton in an amount of 70% by mol or more based on dicarboxylic acid units, and satisfies the following parameters: (i) a glass transition temperature of 110° C. or more measured with a differential scanning calorimeter, (ii) a moisture permeation coefficient of 1 g·mm/m2/day or less, and (iii) an oxygen permeation coefficient of 10 cc·mm/m2/day/atm or less.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: March 19, 2013
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Takeshi Hirokane, Yoshio Aoki
  • Patent number: 8389666
    Abstract: The disclosed is a copolymer having a formula as: R1 is a combination of naphthalene, phenylene, butyl, and hexyl. R2 is a combination of ethylene, cyclohexlene, 2-methylpropyl, and neopentyl. n is a number of 1500 to 3000. The copolymer has a transparency greater than 80%, a thermal resistance greater than 100° C., a moisture absorption less than 0.5 wt %, and yellowing under UV/climate resistance greater than 1000 hours.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: March 5, 2013
    Assignee: Industrial Technology Research Institute
    Inventors: Chih-Hsiang Lin, Ya-Lan Chuang, Pei-Jung Tsat, Shu-Ling Yeh, Chin-Lang Wu, Cing-Jiuh Kang, Hsin-Ching Kao
  • Patent number: 8389645
    Abstract: The invention relates to solid polyester granules of the type used as matting agents in paints. In particular, the invention relates to a new redox initiating system for use in a suspension polymerization process that is used to manufacture the solid polyester granules, to a process for the preparation of the solid polyester granules, and to paint compositions containing the solid polyester granules.
    Type: Grant
    Filed: January 27, 2005
    Date of Patent: March 5, 2013
    Assignee: Duluxgroup (Australia) Pty Ltd.
    Inventors: Christopher Henry Such, Barbara Aurelia Czapski, Karen Lai-On Seligman, Deepak Ajinkya, Algirdas Kazimieras Serelis
  • Patent number: 8383725
    Abstract: A method of making an aliphatic polyester prepolymer, comprising: reacting, alone or in combination with other reactants, a diol with at least a first diacid (or a diester of said first diacid) to produce an aliphatic polyester prepolymer. The first diacid is preferably a trans-beta-hydromuconic acid (HMA). In some embodiments, the diol contains at least one ether linkage. In some embodiments the diol is further reacted with at a second diacid, or a diester of said second diacid, wherein said second diacid is different from said first diacid. Prepolymers produced from such processes and articles formed therefrom are also described.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: February 26, 2013
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Valerie Ashby, David Olson
  • Patent number: 8378057
    Abstract: To provide a polyether ester block copolymer which has surface hardness suitable to be applied to a structural member and excellent in sound deadening quality and tribological property, a polyether ester block copolymer of the present invention comprises (a) aromatic dicarboxylic acid unit, (b) 1,3-propanediol and/or 1,4-butanediol unit and (c) long chain diol unit mainly including polyoxytrimethylene glycol, wherein the durometer hardness (type D), measured according to the principle of the method described in JIS K6253, is 40 or larger and 78 or smaller.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: February 19, 2013
    Assignee: Mitsubishi Chemical Corporation
    Inventor: Katsushi Yamaoka
  • Patent number: 8354491
    Abstract: Described are container(s) comprising polyesters comprising (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid or aliphatic dicarboxylic acid residues; and (b) a glycol component comprising 15 to 50 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues and 50 to 85 mole % 1,4-cyclohexanedimethanol residues; wherein the total mole % of said dicarboxylic acid component is 100 mole %, and the total mole % of said glycol component is 100 mole %; wherein the inherent viscosity of the polyester is from 0.50 to 0.75 dL/g as determined in 60/40 (wt/wt) phenol/tetrachloroethane at a concentration of 0.5 g/100 ml at 25° C.; wherein said polyester has a notched Izod impact strength of at least 7.5 ft-lb/inch at 23° C. according to ASTM D256 with a 10-mil notch in a 1/8-inch thick bar; and wherein the melt viscosity of said polyester is less than 10,000 poise as measured at 1 radian/second on a rotary melt rheometer at 290° C.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: January 15, 2013
    Assignee: Eastman Chemical Company
    Inventors: Emmett Dudley Crawford, Thomas Joseph Pecorini, David Scott Porter, Gary Wayne Connell, Michael James Keegan
  • Patent number: 8349411
    Abstract: A method for producing raised structures serving as grip nubs on a surface of a pencil, in which, with the help of a nozzle, a plastic preparation is applied. The plastic preparation includes a radiation-curable plastic mass and has the following composition: plastic mass formed from 40% to 98% wt.; oligomer and monomer photoinitiator system 0.1% to 30% wt.; amorphous silicon dioxide 0.3% to 30% wt.; and/or micronized amide wax colorant 0% to 60% wt.; filler 0% to 60% wt.; and further additives 0% to 10% wt.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: January 8, 2013
    Assignee: Faber-Castell AG
    Inventors: Udo Beck, Walter Oetter, Gerhard Lugert