Patents by Inventor Michael Hoffmockel

Michael Hoffmockel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Use of Biomass to Produce Polyoxymethylene Copolymers
    Publication number: 20220049043
    Abstract: The present disclosure is directed to a process for producing a polyoxymethylene polymer or paraformaldehyde in an environmentally friendly and sustainable manner. The polyoxymethylene polymer or paraformaldehyde can be produced so as to be carbon neutral or even carbon negative. In one aspect, the polyoxymethylene polymer or paraformaldehyde is formed from a biogas or from a recycled gas. The biogas and the recycled gas are used to produce the components needed to form the polymer.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 17, 2022
    Inventors: Klaus Kurz, Kirsten Markgraf, Michael Hoffmockel, Kai-Uwe Tönnes
  • Integrated process for producing cyclic acetals and oxymethylene polymers
    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
  • Initiator
    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
  • Process for producing oxymethylene polymers
    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
  • Integrated Process for Producing Cyclic Acetals and Oxymethylene Polymers
    Publication number: 20140329988
    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: Application
    Filed: November 23, 2012
    Publication date: November 6, 2014
    Inventors: Michael Haubs, Michael Hoffmockel, Klaus Kurz, Jurgen Lingnau, Damian Feord
  • Process for Recycling A Formaldehyde Source During A Polymerization Process
    Publication number: 20140323686
    Abstract: A process for recovering volatile components from an oxymethylene polymer process is disclosed. The volatile components are removed from the process and the formaldehyde collected is converted to a cyclic acetal. The formaldehyde is converted to a cyclic acetal by contacting the formaldehyde with a catalyst in the presence of an aprotic solvent.
    Type: Application
    Filed: November 23, 2012
    Publication date: October 30, 2014
    Inventors: Klaus Kurz, Jurgen Lingnau, Michael Haubs, Michael Hoffmockel, Damian Feord
  • INITIATOR
    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
  • Oxymethylene polymers, process for the preparation thereof and use thereof
    Patent number: 8742065
    Abstract: Oxymethylene polymers having a bimodal distribution or having a distribution of higher modality and having a targeted content of a low molecular weight fraction of from 1 to 5 percent by mass are described. Moldings of these polymers are distinguished by high low-temperature notched impact strength associated with a high modulus of elasticity.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: June 3, 2014
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Michael Hoffmockel, Jürgen Lingnau, Robert Gronner, Horst Roeschert
  • Initiator
    Patent number: 8691936
    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: June 19, 2012
    Date of Patent: April 8, 2014
    Assignee: Ticona GmbH
    Inventors: Michael Hoffmockel, Michael Haubs, Horst Röschert
  • Oxymethylene polymers and process for the preparation thereof
    Patent number: 8481671
    Abstract: The present invention relates to a process for the preparation of oxymethylene polymers as well as oxymethylene polymers obtainable therefrom. The process includes polymerization of a monomer, which forms —CH2—O— units in the presence of an acetal of formaldehyde or a polyhydric alcohol and an initiator for cationic polymerization. The initiator may be a heteropoly acid or an acid salt thereof which is dissolved in an alkyl ester of a polybasic carboxylic acid.
    Type: Grant
    Filed: May 26, 2010
    Date of Patent: July 9, 2013
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Michael Hoffmockel, Jurgen Lingnau, Robert M. Gronner, Lowell Larson
  • Process for Producing Oxymethylene Polymers
    Publication number: 20130018170
    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: Application
    Filed: July 11, 2012
    Publication date: January 17, 2013
    Applicant: TICONA LLC.
    Inventors: Michael Hoffmockel, Michael Haubs, Juergen Lingnau, Horst Roeschert
  • Initiator
    Publication number: 20120259089
    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: June 19, 2012
    Publication date: October 11, 2012
    Inventors: Michael Hoffmockel, Michael Haubs, Horst Röschert
  • Oxymethylene Polymers, Process for the Preparation Thereof and Use Thereof
    Publication number: 20120232246
    Abstract: Oxymethylene polymers having a bimodal distribution or having a distribution of higher modality and having a targeted content of a low molecular weight fraction of from 1 to 5 percent by mass are described. Moldings of these polymers are distinguished by high low-temperature notched impact strength associated with a high modulus of elasticity.
    Type: Application
    Filed: May 29, 2012
    Publication date: September 13, 2012
    Applicant: TICONA GMBH
    Inventors: Michael Haubs, Michael Hoffmockel, Jürgen Lingnau, Robert Gronner, Horst Roeschert
  • Initiator
    Patent number: 8202964
    Abstract: An initiator for cationic polymerization comprises a salt of a protic acid as well as a protic acid. 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: March 8, 2011
    Date of Patent: June 19, 2012
    Assignee: Ticona GmbH
    Inventors: Michael Hoffmockel, Michael Haubs, Horst Röschert
  • Oxymethylene polymers, process for the preparation thereof and use thereof
    Patent number: 8188211
    Abstract: Oxymethylene polymers having a bimodal distribution or having a distribution of higher modality and having a targeted content of a low molecular weight fraction of from 1 to 5 percent by mass are described. Moldings of these polymers are distinguished by high low-temperature notched impact strength associated with a high modulus of elasticity.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: May 29, 2012
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Michael Hoffmockel, Jürgen Lingnau, Robert Gronner, Horst Roeschert
  • Oxymethylene copolymers and the use thereof and process for the preparation of oxymethylene copolymers
    Patent number: 8133966
    Abstract: Oxymethylene copolymers having a high proportion of terminal alkyl ether groups and having terminal hydroxyalkylene groups are described. These polymers are distinguished by high thermal stability and high hot water resistance.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: March 13, 2012
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Michael Hoffmockel, Jürgen Lingnau, Robert Gronner, Michael Gene Yearwood
  • Initiator
    Publication number: 20110160428
    Abstract: An initiator for cationic polymerization comprises a salt of a protic acid as well as a protic acid. 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: March 8, 2011
    Publication date: June 30, 2011
    Inventors: Michael Hoffmockel, Michael Haubs, Horst Röschert
  • Process for preparation of oxymethylene polymers in a homogeneous phase, and use
    Patent number: 7943726
    Abstract: A process and an apparatus are described for preparation of oxymethylene polymers. This process encompasses polymerization, in a homogeneous phase, of a monomer which forms oxymethylene groups, as far as 90% of maximum conversion in the presence of an acetal of formaldehyde and of an initiator for cationic polymerization, followed by deactivation of the reaction mixture. The resultant oxymethylene polymers have alkyl ether end groups and are extremely stable.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: May 17, 2011
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Joachim Clauss, Michael Hoffmockel, Jürgen Lingnau, Arnold Schneller
  • Oxymethylene Polymers and Process for the Preparation Thereof
    Publication number: 20110077378
    Abstract: The present invention relates to a process for the preparation of oxymethylene polymers as well as oxymethylene polymers obtainable therefrom. The process includes polymerization of a monomer, which forms —CH2—O— units in the presence of an acetal of formaldehyde or a polyhydric alcohol and an initiator for cationic polymerization. The initiator may be a heteropoly acid or an acid salt thereof which is dissolved in an alkyl ester of a polybasic carboxylic acid.
    Type: Application
    Filed: May 26, 2010
    Publication date: March 31, 2011
    Applicant: TICONA GMBH
    Inventors: Michael Haubs, Michael Hoffmockel, Jürgen Lingnau, Robert M. Gronner, Larson Lowell
  • Process for preparation of polymer blends composed of polyoxymethylenes and of thermoplastic elastomers
    Patent number: 7906594
    Abstract: The invention relates to a process for preparation of polymer blends comprising at least one polyoxymethylene and at least one thermoplastic elastomer, where the thermoplastic elastomer is micropelletized by a pelletizing process and the pellets obtained in a) are dispersed in the polyoxymethylene matrix via melting of the components and mixing of these at low shear forces, and also to the use of micropelletized thermoplastic elastomers for preparation of polyoxymethylenes with low formaldehyde emission.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: March 15, 2011
    Assignee: Ticona GmbH
    Inventors: Karl-Friedrich Mück, Ernst Hofmann, Michael Hoffmockel