Patents by Inventor Ulrich Mayerhoeffer

Ulrich Mayerhoeffer 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).

  • Process for the preparation of phenyl ketones
    Patent number: 11840507
    Abstract: The present invention relates to a process for the preparation of phenyl ketones and the preparation of phenoxyphenyl derivatives.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: December 12, 2023
    Assignee: ARXADA AG
    Inventors: Ulrich Mayerhoeffer, Eva Kirchner, Fabian Meemken, Christophe Girard, Kai Lechner, Emilia Paunescu
  • Method for preparation of acetoacetylated polyols
    Patent number: 11802104
    Abstract: The invention discloses a method for preparation of an acetoacetylated polyol by reaction of a polyol with deketene in the presence of a base and in the absence of a solvent.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: October 31, 2023
    Assignee: ARXADA AG
    Inventors: Masaki Nakajima, Anja Bierstedt, Leo Schmid, Maximilian Kuehnle, Ulrich Mayerhoeffer, Ellen Klegraf
  • Process for the Preparation of Phenyl Ketones
    Publication number: 20230242469
    Abstract: The present invention relates to a process for the preparation of phenyl ketones and the preparation of phenoxyphenyl derivatives.
    Type: Application
    Filed: August 16, 2021
    Publication date: August 3, 2023
    Inventors: Ulrich MAYERHOEFFER, Eva KIRCHNER, Fabian MEEMKEN, Christophe GIRARD, Kai LECHNER, Emilia PAUNESCU
  • Method for Preparation of Acetoacetylated Polyols
    Publication number: 20220185762
    Abstract: The invention discloses a method for preparation of an acetoacetylated polyol by reaction of a polyol with deketene in the presence of a base and in the absence of a solvent.
    Type: Application
    Filed: April 3, 2020
    Publication date: June 16, 2022
    Inventors: Masaki Nakajima, Anja Bierstedt, Leo Schmid, Maximilian Kuehnle, Ulrich Mayerhoeffer, Ellen Klegraf
  • Encapsulated Biocides
    Publication number: 20220015358
    Abstract: The invention discloses a method for protecting coating compositions selected from the group consisting of architectural (interior and exterior) and marine paints and coatings, sealants (for example PU, Epoxy, Silicone), fishnet coatings, construction paints and coatings, oil and gas coatings, wood composite coatings and wood composites plastics, flooring paints and coatings, and combinations thereof; against microorganisms by the use of microencapsulated biocides, wherein the encapsulation is realized with a polyurea polymer.
    Type: Application
    Filed: November 14, 2019
    Publication date: January 20, 2022
    Inventors: Stefan Ellinger, Brittany Caldwell, Katrina Staggemeier, Shujun Wang, Simone Verdi, Joachim Kerber, Kevin E. Janak, Ulrich Mayerhoeffer, Monika Jobmann, Alexandra Latnikova, Roshanak Lowe
  • Method for preparation of n-butyl nitrite
    Patent number: 10125087
    Abstract: The invention discloses a method for the continuous preparation of n-butyl nitrite with a low content of n-butanol comprising the reaction of n-butanol, an acid and NaNO2 in a continuous way, in which the n-butanol, an acid and NaNO2 are mixed in a mixing device which provides for a pressure drop of at least 1 bar; the acid is selected from the group consisting of HCI, H2SO4, formic acid, methanesulfonic acid, and mixtures thereof; and the amount of HCI is at least 1.02 molar equivalent based on the molar amount of n-butanol.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: November 13, 2018
    Assignee: LONZA LTD
    Inventors: Christoph Taeschler, Ulrich Mayerhoeffer, Christophe Girard, Michael Bittel, Rolf Kalbermatten, Claudio Arnold, Stefan Garms, Christian Schnider, Stefan Tille, Manuel Favre, Guy Raboud, Kilian Schnydrig, Martin Venetz, Thomas Eggel
  • METHOD FOR PREPARATION OF N-BUTYL NITRITE
    Publication number: 20180251420
    Abstract: The invention discloses a method for the continuous preparation of n-butyl nitrite with a low content of n-butanol comprising the reaction of n-butanol, an acid and NaNO2 in a continuous way, in which the n-butanol, an acid and NaNO2 are mixed in a mixing device which provides for a pressure drop of at least 1 bar; the acid is selected from the group consisting of HCI, H2SO4, formic acid, methanesulfonic acid, and mixtures thereof; and the amount of HCI is at least 1.02 molar equivalent based on the molar amount of n-butanol.
    Type: Application
    Filed: September 14, 2016
    Publication date: September 6, 2018
    Inventors: Christoph Taeschler, Ulrich Mayerhoeffer, Christophe Girard, Michael Bittel, Rolf Kalbermatten, Claudio Arnold, Stefan Garms, Christian Schnider, Stefan Tille, Manuel Favre, Guy Raboud, Kilian Schnydrig, Martin Venetz, Thomas Eggel