Patents Examined by Terressa M. Boykin
  • Sulfonated telechelic polycarbonates
    Patent number: 7687595
    Abstract: A sulfonated telechelic polycarbonate is described which is produced by melt synthesis. A dihydroxy compound is reacted with a sulfobenzoic acid salt, then with an activated carbonate. The method results in a sulfonated telechelic polycarbonate which has a high percentage of sulfonated end groups, is soluble, and is transparent.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: March 30, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Daniel J. Brunelle, Martino Colonna, Maurizio Fiorini, Corrado Berti, Enrico Binassi
  • Invertible amphiphilic polymers
    Patent number: 7687600
    Abstract: Amphiphilic monomeric compounds and corresponding homopolymers and copolymers capable of assembly and invertible configuration in introduction to and change in fluid medium.
    Type: Grant
    Filed: July 19, 2005
    Date of Patent: March 30, 2010
    Assignee: University of Massachusetts
    Inventor: Sankaran Thayumanavan
  • Random amorphous copolymer and manufacturing method thereof
    Patent number: 7687594
    Abstract: A random amorphous copolyester is synthesized by using diacid monomers and diol monomers. The random amorphous copolyester has a structure of the formula (I): wherein R1, R2 is an aromatic or aliphatic monomer, A is 0-0.8, B is 0-0.8, C is 0-1, D is 0-1, E is 0-0.8, F is 0-0.8, C+D<0.2 and A+B+E+F<0.8. The diacid monomer comprises TPA and an aromatic or aliphatic diacid monomer, the diol monomer comprises EG, 1,3 and 1,4-CHDM, and an aromatic or aliphatic diol monomer.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: March 30, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: Chi-Yuan Hung, Cheng-Hsing Fan, Yuhsin Tsai, Fu-Yu Tsai
  • Process for preparing water-absorbing polymer particles
    Patent number: 7682702
    Abstract: A process for producing water-absorbing polymeric particles comprises the steps of i) drying a hydrogel to produce a dried hydrogel, ii) separating incompletely dried polymeric particles from the dried hydrogel, and iii) drying the separated-off incompletely dried polymeric particles, wherein the separated incompletely dried polymeric particles are comminuted before said drying iii).
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: March 23, 2010
    Assignee: BASF SE
    Inventor: Meinhard Nitschke
  • Fiber reinforced thermoplastic sheets with surface coverings
    Patent number: 7682697
    Abstract: A composite sheet material in one embodiment includes a porous core layer. The porous core layer includes a thermoplastic polymer, about 20 weight percent to about 80 weight percent of reinforcing fibers based on a total weight of the porous core layer, and an effective amount of a flame retardant agent.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: March 23, 2010
    Assignee: Azdel, Inc.
    Inventors: Venkat Krishna Raghavendran, Thomas Arnold Ebeling
  • Multilayered film made of (meth)acrylate copolymer and polycarbonate
    Patent number: 7682698
    Abstract: The invention relates to a multilayer film encompassing at least one upper layer a) and one middle layer b) composed of (meth)acrylate copolymers, and also a backing layer c) composed of polycarbonate, where the upper layer a) comprises a light stabilizer and is composed of a (meth)acrylate copolymer which can form semicompatible mixtures with the polycarbonate of the backing layer c), where a test specimen produced from a mixture composed of 20% by weight of (meth)acrylate copolymer and 80% by weight of polycarbonate has a tensile strain at break of at least 75% (ISO 527-2) at 23° C.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: March 23, 2010
    Assignees: Roehm GmbH, Senoplast Klepsch & Co. GmbH
    Inventors: Klaus Schultes, Michael Wicker, Klaus Albrecht, Mona Rueppel, Gabriele Dassinger, Eric Reinheimer, Johann Kappacher, Andreas Hoellebauer
  • Method for producing polycarbonate copolymer and polycarbonate copolymer
    Patent number: 7678875
    Abstract: A method for producing a PC copolymer with improved productivity is provided. The PC copolymer has a specific structure and the method uses a diester diol-containing monomer as a raw material. The polycarbonate copolymer is produced by reacting a diester diol-containing monomer, a divalent phenol, and a carbonate precursor by interfacial polymerization, wherein the diester diol-containing monomer is a product of reaction between a hydroxybenzoic acid or an esterified product thereof and a polyalkylene glycol, wherein the esterification degree of hydroxyl groups of the polyalkylene glycol is 50 to 90 mol %.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: March 16, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Koichi Suga, Yasuhiro Ishikawa
  • Hydroxy-aromatic compound, process for the preparation thereof, and use of the compound
    Patent number: 7678876
    Abstract: Hydroxy-aromatic compounds of formula (I) are provided: wherein at least one of the set consisting of R1, R3, and R5 is a group of formula (II); any remaining one or two of the set consisting of R1, R3, and R5 being H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system; R2 and R4 are H, OH, a C1-C12 alkyl group or an oligomeric or polymeric system; wherein formula (II) is the following group: wherein EWG is an electron-withdrawing group.
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: March 16, 2010
    Assignee: DSM IP Assets B.V.
    Inventors: Rudolfus A T M Van Benthem, Renier H M Kierkels
  • Method for producing cyclohexadecanone
    Patent number: 7674765
    Abstract: The invention relates to a method for producing cyclohexadecanone by hydrogenating cyclohexadecenone, to mixtures of aromatic substances, and to products containing the inventive cyclohexadecanone.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: March 9, 2010
    Assignee: Symrise GmbH & Co., KG
    Inventors: Ingo Wöhrle, Walter Kuhn, Hans-Ulrich Funk, Alfred Körber
  • Method for producing non-sticking granules from a polyester material and for the further processing of granules produced in this way
    Patent number: 7674878
    Abstract: Disclosed is a method of producing a non-adhering granulate above the glass-transition temperature comprising a polyester material, in which the polyester material is introduced into a cooling water flow as a melt and is separated from the cooling water after passing through a cooling stretch. The dwell time of the polyester material in the cooling stretch is 0.2-5 sec, and the cooling water has a pressure of at least 2 bar along the cooling stretch. For the thus obtained granulate, post-crystallization is not required, at least not in every case. It has been shown that the granulate does not adhere, even without post-crystallization and mechanical movement if no additional external input of energy takes place. Even during heating under pressure, no adhesion could be observed.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: March 9, 2010
    Assignee: Uhde Inventa-Fischer AG
    Inventors: Kurt Hanimann, Werner Stibal
  • Method of producing high molecular weight polymer
    Patent number: 7674872
    Abstract: The present invention provides methods of producing high molecular weight polymer. A method of forming polycarbonate includes the step of combining in a reaction mixture a diaryl carbonate, a transesterification catalyst, an aliphatic dihydroxy compound, and a diacid compound in a reactor system. The temperature and pressure of the reactor system are adjusted to a first reactor setpoints and the reaction mixture is monitored to detect initiation of the exothermic oligomerization reaction. The reactor setpoint are adjusted to second reactor setpoints after detection of initiation of the exothermic oligomerization reaction. The reactor system is maintained at the second reactor setpoints to allow the reaction mixture to react to form an oligomer mixture.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: March 9, 2010
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Hans Looij, Laurus van der Wekke, Dennis James Patrick Maria Willemse
  • Polycarbonates made using highly selective catalysts
    Patent number: 7674873
    Abstract: Poly(propylene carbonates) are prepared from propylene oxide and CO2 with less than 10% cyclic propylene carbonate by product using cobalt based catalysts of structure preferably in combination with salt cocatalyst, very preferably cocatalyst where the cation is PPN+ and the anion is Cl? or OBzF5?. Novel products include poly(propylene carbonates) having a stereoregularity greater than 90% and/or a regioregularity of greater than 90%.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: March 9, 2010
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Geoffrey W. Coates, Zengquan Qin, Claire Tova Cohen
  • Method of forming polycarbonate
    Patent number: 7671165
    Abstract: A method of forming polycarbonate includes the steps of introducing a plurality of reaction components to a reactor operating under melt polymerization conditions and removing ester-substituted phenol from the reactor. The plurality of reaction components include a dihydroxy compound, an ester-substituted diaryl carbonate, and a melt transesterification catalyst. The reaction components are introduced in a plurality of reaction component streams. A first reaction component streams includes a melt transesterification catalyst dissolved or suspended in a liquid carrier containing an ester-substituted phenol. The composition of the first reaction component stream is selected such that ester-substituted phenol is not generated as a reaction product in the first reaction component stream.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: March 2, 2010
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Hans-Peter Brack, Peter K. Davis, David Domingo Fuster, Jorge Garcia Agudo, Gerardo Hidalgo Llinas, Miguel Angel Salomon Cheliz, Ignacio Vic Fernandez, Laurus van der Wekke, Dennis James Patrick Maria Willemse
  • Aliphatic polycarbonates, methods of making, and articles formed therefrom
    Patent number: 7671164
    Abstract: A method of making a polycarbonate is described. The method comprises melt reacting an ester-substituted diaryl carbonate and a multifunctional compound of the formula: in the presence of catalyst to form an oligomer comprising less than 2,000 ppm of an ester-linked terminal group, and melt polymerizing the oligomer to form a polycarbonate. Use of specific reaction conditions produces a polycarbonate having an Mw of greater than or equal to 25,000 g/mol as determined by gel-permeation chromatography relative to polystyrene standards. Polycarbonates comprising units derived from the multifunctional compound, including homopolycarbonates, aliphatic copolycarbonates further comprising units derived from an aromatic dihydroxy compound, and aliphatic polycarbonate-polyesters, are also disclosed, as are a thermoplastic composition and an article including the disclosed polycarbonates.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: March 2, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Hans-Peter Brack, Maarten Antoon Jan Campman, Jorge Garcia Agudo, Jan Henk Kamps, Hans Looij, Fernando Olmedo Fernandez, Dennis James Patrick Maria Willemse
  • Polycarbonate-polyester block copolymer compositions, methods, and articles
    Patent number: 7671169
    Abstract: A polycarbonate-polyester block copolymer includes a polycarbonate block and a polyester block, each having specific structures. The block copolymer can be prepared, at least in part, from renewable feedstocks. In some forms, the block copolymer includes biodegradable segments that facilitate structural breakdown of objects molded from the block copolymer. Methods of preparing the block copolymer are described as are compositions that include it and articles prepared from it.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: March 2, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Brian Mullen, Tara Mullen
  • Poly(carbonate-co-urea) copolymers and melt transesterification method of preparing these copolymers
    Patent number: 7666977
    Abstract: Disclosed herein is a process to prepare a poly(carbonate-co-urea) copolymer comprising reacting in the melt: (a) a dihydroxy reaction component comprising a dihydroxy compound, (b) a diaryl carbonate reaction component comprising a diaryl carbonate, (c) a urea reaction component comprising a urea compound in the presence of (d) a transesterification catalyst during at least part of the reaction and removing a phenolic byproduct to produce a poly(carbonate-co-urea) copolymer, wherein the urea and dihydroxy compounds are reacted in a molar ratio: (total moles of urea compound)/((total moles of urea compound)+(total moles of dihydroxy compound)) of less than or equal to 0.5.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: February 23, 2010
    Assignee: SABIC Innovative Plastics IP B.V.
    Inventors: Jan Henk Kamps, Edward Kung, Jan-Pleun Lens
  • Polyphenylene producing method
    Patent number: 7666974
    Abstract: Disclosed is a method for production of polyphenylene by means of polymerization of phenols. The method comprises using hydroquinone as a phenol, which is predissolved in water or in alcoholic solution, adding hydrogen peroxide in the presence of transition metals aquo-ions, and controlling temperature during polymerization keeping it not higher than the boiling point, and controlling pH in the range of 2-7. In on example embodiment, Cr, Mn, Fe, Cu, Ni, Co, Zn aquo-ions or a combination thereof may be used as transition metal aquo-ions.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: February 23, 2010
    Inventors: Andrei Leonidovich Zagorsky, Dmitry Kirillovich Toropov
  • Carbonate copolymers
    Patent number: 7666973
    Abstract: Copolymer compositions are provided which include a cyclic monomer and an aromatic cyclic carbonate. The copolymer may be produced, in embodiments, by a ring-opening polymerization reaction initiated by the aromatic cyclic carbonate. The resulting copolymer may be utilized in producing medical devices, drug delivery devices, and/or coatings for medical devices.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: February 23, 2010
    Assignee: Tyco Healthcare Group LP
    Inventor: Joshua B. Stopek
  • Isosorbide-based polycarbonates, method of making, and articles formed therefrom
    Patent number: 7666972
    Abstract: Disclosed herein is an isosorbide-based polycarbonate polymer comprising: an isosorbide unit, an aliphatic unit derived from a C14-44 aliphatic diacid, C14-44 aliphatic diol, or combination of these; and optionally, an additional unit different from the isosorbide and aliphatic units, wherein the isosorbide unit, aliphatic unit, and additional unit are each carbonate, or a combination of carbonate and ester units. Also disclosed are a thermoplastic composition and an article comprising the isosorbide-based polycarbonate.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: February 23, 2010
    Assignee: SABIC Innovative Plastics IP B., V.
    Inventors: Bernardus Johannes Paulus Jansen, Jan Henk Kamps, Edward Kung, Hans Looij, Lina Prada, Wilhelmus Johannes Daniel Steendam
  • Copolycarbonate, copolycarbonate composition, and optical molded article obtained therefrom
    Patent number: 7662905
    Abstract: A copolycarbonate; a copolycarbonate composition that contains the copolycarbonate and a polycarbonate resin; a polycarbonate base resin composition that contains the copolycarbonate and an acryl base resin; an optical molded article containing the copolycarbonate; a light guide plate containing the copolycarbonate; a lens containing the copolycarbonate; an optical molded article containing the copolycarbonate composition; a light guide plate containing the copolycarbonate composition; a lens containing the copolycarbonate composition; an optical molded article containing the polycarbonate base resin composition; a light guide plate containing the polycarbonate base resin composition; and an optical molded article containing the polycarbonate base resin composition.
    Type: Grant
    Filed: February 21, 2005
    Date of Patent: February 16, 2010
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Yasuhiro Ishikawa, Hiroshi Kawato, Atsushi Sato