Patents Assigned to Ticona GmbH
  • Patent number: 9546148
    Abstract: The present invention relates to a process for producing cyclic acetal comprising i) preparing a liquid reaction mixture comprising a) a formaldehyde source, b) an aprotic compound and c) a catalyst; wherein the total amount of protic compounds is less than 40 wt.-%, based on the total weight of the reaction mixture; and ii) converting the formaldehyde source into cyclic acetals.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: January 17, 2017
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Jurgen Lingnau, Klaus Kurz
  • Patent number: 9540553
    Abstract: The present invention relates to a composition comprising a) at least one polyoxymethylene (A) having terminal OH-groups of more than 15 mmol/kg, b) at least one coupling agent (B), c) one or more hindered amine light stabilizer (C) having a molecular weight ranging from 500 to 1000 g/mol, and d) optionally at least one reinforcing fiber (D).
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 10, 2017
    Assignee: Ticona GmbH
    Inventors: Kirsten Markgraf, Bruce M. Mulholland, Dan Murena, Joachim Floeck
  • Patent number: 9499512
    Abstract: A process for producing a cyclic acetal is disclosed. According to the process, a formaldehyde source is combined with an aprotic compound and contacted with a heterogeneous catalyst which causes the formaldehyde source to convert into a cyclic acetal such as trioxane. The catalyst, for instance, may comprise a solid catalyst such as an ion exchange resin. In one embodiment, the process is used for converting anhydrous formaldehyde gas to trioxane. The anhydrous formaldehyde gas may be produced form an aqueous formaldehyde solution by an extractive distillation.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: November 22, 2016
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Damian Feord, Joni Sianturi, Klaus Kurz, Jurgen Lingnau
  • Publication number: 20160325475
    Abstract: An apparatus and method are disclosed relating to a multi-layer flexible pipe for conveying a target fluid. The pipe includes a core layer arranged to provide an inner bore along which a fluid can flow and at least one barrier layer having a tensile elongation at yield of greater than 5% at a temperature of 23° C.
    Type: Application
    Filed: July 21, 2016
    Publication date: November 10, 2016
    Applicants: GE Oil & Gas UK Limited, Ticona GmbH
    Inventors: Dirk Raudies, Graeme Bulmer
  • Patent number: 9469624
    Abstract: A process for producing cyclic acetals is described. A formaldehyde source is contacted with an aprotic compound in the presence of a catalyst to produce the cyclic acetals. The aprotic compound can increase conversion rates and/or efficiency. In one embodiment, the formaldehyde source is obtained from methanol. In particular, methanol can be converted into formaldehyde which is then converted into a cyclic acetal. In one embodiment, the cyclic acetal can then be used to produce oxymethylene polymers.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: October 18, 2016
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Michael Hoffmockel, Klaus Kurz, Jurgen Lingnau, Damian Feord
  • Patent number: 9365537
    Abstract: A process for recycling polyoxymethylene polymers is disclosed. A polyoxymethylene polymer is at least partially dissolved in an aprotic compound. The resulting solution or suspension (liquid mixture) is then contacted with a catalyst which causes the polyoxymethylene polymer to be converted into a cyclic acetal. The cyclic acetal can be separated, collected and used in other processes. In one embodiment, the cyclic acetal may be used to produce a polyoxymethylene polymer.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: June 14, 2016
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Jurgen Lingnau, Klaus Kurz
  • Patent number: 9303145
    Abstract: The present invention relates to a molding composition, a process for the manufacturing of this molding composition, the molded parts obtainable from this molding composition as well as the use of the molding composition for the manufacturing of molded parts used in the automotive industry, for housings, latches, window winding systems, wiper systems, pulleys, sun roof systems, seat adjustments, levers, gears, claws, pivot housing, brackets, wiper arms or seat rails. The molding composition contains at least one polyoxymethylene having terminal OH-groups between 20 mmol/kg and 50 mmol/kg, at least one polyisocyante coupling agent, at least one reinforcing glass fiber that has been sized, and optionally at least one formaldehyde scavenger. The moldings produced from this molding composition are distinguished by their improved mechanical properties while having low formaldehyde emissions and excellent tensile strength while having a good flex fatigue and creep performance.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 5, 2016
    Assignee: Ticona GmbH
    Inventors: Kirsten Markgraf, Lowell Larson
  • Patent number: 9212234
    Abstract: In a process for producing high molecular weight polyethylene, ethylene is contacted with a slurry of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand under polymerization conditions comprising a temperature of about 20° C. to less than 90° C. and a pressure of about 4 bar to about 40 bar.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: December 15, 2015
    Assignee: TICONA GMBH
    Inventors: Dominique Robert, Julia Hufen, Kerstin Lüdtke, Bjorn Rinker, Jens Ehlers
  • Publication number: 20150299544
    Abstract: The present invention relates to a composition comprising a) at least one polyoxymethylene (A) having terminal OH-groups of more than 15 mmol/kg, b) at least one coupling agent (B), c) one or more hindered amine light stabilizer (C) having a molecular weight ranging from 500 to 1000 g/mol, and d) optionally at least one reinforcing fiber (D).
    Type: Application
    Filed: March 15, 2013
    Publication date: October 22, 2015
    Applicant: Ticona GmbH
    Inventors: Kirsten MARKGRAF, Bruce M. MULHOLLAND, Dan MURENA, Joachim FLOECK
  • Patent number: 9163120
    Abstract: An initiator for cationic polymerization comprises a salt of a protic acid as well as a protic add. The molar ratio of protic acid to salt is in the range from 1:0.01 to 1:2000. The initiator is used for example for cationic homo- or copolymerization of trioxane, and permits stable and flexible operation of the polymerization.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: October 20, 2015
    Assignee: Ticona GmbH
    Inventors: Michael Hoffmockel, Michael Haubs, Horst Roschert
  • Patent number: 9062183
    Abstract: The present disclosure relates to a molding composition and to molded products made from the composition. In accordance with the present disclosure, the polymer composition contains a polyoxymethylene copolymer having a relatively low amount of comonomer units. The polyoxymethylene polymer is combined with at least one reinforcing fiber and a coupling agent. The above polymer produces a composition have a relatively high heat deflection temperature, while also having excellent mechanical properties.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: June 23, 2015
    Assignee: Ticona GmbH
    Inventors: Kirsten Markgraf, Ursula Ziegler
  • Patent number: 9056950
    Abstract: A process for forming shaped three-dimensional products is described made from a composition containing at least one filler and an aromatic liquid crystal polymer. In one embodiment, the process includes forming a substrate such as a film, a sheet or a tube, through an extrusion process. Once the substrate is formed, the substrate is then heated and fed to a shaping process. The shaping process may comprise a thermal forming process or a blow molding process. In order to form the three-dimensional products, the aromatic liquid crystal polymer has a high heat of crystallization, a high melt temperature and/or a high melt viscosity.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: June 16, 2015
    Assignee: Ticona GmbH
    Inventors: Achim Hofmann, Paul C. Yung
  • Patent number: 9034999
    Abstract: In a process for producing polyethylene having a molecular weight of at least 3×105 g/mol as determined by ASTM 4020, ethylene is contacted under polymerization conditions with a slurry of a catalyst composition in at least one hydrocarbon. The catalyst composition comprises a Group 4 metal complex of a phenolate ether ligand and the slurry includes from about 5 to less than 40 ppm per liter of a compound effective to increase the conductivity of said at least one hydrocarbon.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: May 19, 2015
    Assignee: TICONA GMBH
    Inventors: Dominique Robert, Julia Hufen, Kerstin Lüdtke, Jens Ehlers
  • Patent number: 9005515
    Abstract: The present invention relates to a method for the manufacturing of a container or parts of a container for fuel or compressed gases by extrusion blow molding and container or parts of container for fuel or compressed gases made thereof.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: April 14, 2015
    Assignee: Ticona GmbH
    Inventors: Guido Latz, Ursula E. Ziegler, Lowell Larson
  • Patent number: 8993704
    Abstract: In a process for producing an elongated polyethylene component, such as a fiber or membrane, polyethylene powder having a molecular weight of at least 3×105 g/mol as determined by ASTM 4020 is dissolved in a solvent to produce an extrudable solution. The solution is then extruded through a die to form an elongated component and at least part of said solvent is removed from the elongated component. The polyethylene powder used in the process is produced by polymerizing ethylene in the presence of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: March 31, 2015
    Assignee: Ticona GmbH
    Inventors: Dominique Robert, Julia Hufen, Kerstin Lüdtke, Jens Ehlers
  • Patent number: 8993709
    Abstract: The present invention relates to a process for the preparation of oxymethylene polymers, the oxymethylene polymers obtained therefrom as well as their use.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: March 31, 2015
    Assignee: Ticona GmbH
    Inventors: Michael Hoffmockel, Michael Haubs, Jeurgen Lingnau, Horst Roeschert
  • Publication number: 20140329921
    Abstract: In a process for producing polyethylene, ethylene is contacted under polymerization conditions with a slurry of a catalyst composition comprising a particulate support and a Group 4 metal complex of a phenolate ether ligand carried by the support and present in an amount so as to provide about 0.1 to about 35 ???o of Group 4 metal per gram of the support. The resultant polyethylene has a molecular weight of at least 3×105 g/mol as determined by ASTM 4020, an average particle size, d50, of less 300 microns, preferably about 100 to 250 microns, and a span, log10(d90/d10), of less than 0.4.
    Type: Application
    Filed: December 19, 2011
    Publication date: November 6, 2014
    Applicant: TICONA GMBH
    Inventors: Dominique Robert, Julia Hufen
  • Patent number: 8865805
    Abstract: The present invention relates to a molding composition, a process for the manufacturing of said molding composition, molded parts obtainable therefrom as well as the use of the molding composition for the manufacturing of molded parts used in the automotive industry, for housings, latches, window winding systems, wiper systems, sun roof systems, seat adjustments, levers, gears, claws, pivot housing or wiper arms.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: October 21, 2014
    Assignee: Ticona GmbH
    Inventors: Kirsten Markgraf, Oliver Jünger, Ing. Joachim Flöck
  • Patent number: 8829085
    Abstract: The present invention relates to a molding composition, a process for the manufacturing of said molding composition, molded parts obtainable therefrom as well as the use of the molding composition for the manufacturing of molded parts used in the automotive industry, for housings, latches, window winding systems, wiper systems, sun roof systems, seat adjustments, levers, gears, claws, pivot housing or wiper arms.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: September 9, 2014
    Assignee: Ticona GmbH
    Inventors: Kirsten Markgraf, Lowell Larson
  • Publication number: 20140221603
    Abstract: An initiator for cationic polymerization comprises a salt of a protic acid as well as a protic add. The molar ratio of protic acid to salt is in the range from 1:0.01 to 1:2000. The initiator is used for example for cationic homo- or copolymerization of trioxane, and permits stable and flexible operation of the polymerization.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: Ticona GmbH
    Inventors: MICHAEL HOFFMOCKEL, Michael Haubs, Horst Roschert