Patents by Inventor Tiberiu Simandan

Tiberiu Simandan 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 preparing alkoxysilanes
    Patent number: 10294251
    Abstract: A transesterification process for preparing alkoxysilane includes removal of metal transesterification catalyst from the alkoxysilane transesterification reaction medium.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: May 21, 2019
    Assignee: Momentive Performance Materials Inc.
    Inventors: Alain Lejeune, Antonio Chaves, Tiberiu Simandan, Ilaria Vecchi, Lesley Hwang, Andrea Trotto
  • Preparation of isocyanatosilanes
    Patent number: 10266554
    Abstract: There is provided herein a method of preparing an isocyanatosilane including reacting an olefinic isocyanate with a hydridosilane in the presence of a dinuclear rhodium complex under hydrosilylation conditions.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: April 23, 2019
    Assignee: Momentive Performance Materials Inc.
    Inventors: Brendan John O'Keefe, Roland Wagner, Holger Jürgen Glatzer, Tiberiu Simandan, Konstantin Kraushaar, Joe Adrian Biele, Edwin Kroke
  • PREPARATION OF ISOCYANATOSILANES
    Publication number: 20180346493
    Abstract: There is provided herein a method of preparing an isocyanatosilane including reacting an olefinic isocyanate with a hydridosilane in the presence of a dinuclear rhodium complex under hydrosilylation conditions.
    Type: Application
    Filed: May 31, 2017
    Publication date: December 6, 2018
    Inventors: Brendan John O'Keefe, Roland Wagner, Helger Jurgen Glatzer, Tiberiu Simandan, Konstantin Kraushaar, Joe Adrian Biele, Edwin Kroke
  • PROCESS FOR PREPARING ALKOXYSILANES
    Publication number: 20170355720
    Abstract: A transesterification process for preparing alkoxysilane includes removal of metal transesterification catalyst from the alkoxysilane transesterification reaction medium.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 14, 2017
    Inventors: Alain Lejeune, Antonio Chaves, Tiberiu Simandan, Ilaria Vecchi, Lesley HWANG, Andrea Trotto
  • Aqueous catalytic process for the preparation of thiocarboxylate silane
    Publication number: 20060235236
    Abstract: An aqueous process is described in which thiocarboxylate silane is produced from haloalkyl silane by reaction of the haloalkyl silane with an aqueous solution of thiocarboxylate salt in the presence of a catalytically effective amount of alkylguanidinium salt.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 19, 2006
    Inventor: Tiberiu Simandan
  • Process for the preparation of thiocarboxylate silane
    Publication number: 20050277781
    Abstract: An aqueous process is described in which thiocarboxylate silane is produced from haloalkyl silane by reaction of the haloalkyl silane with an aqueous solution of thiocarboxylate salt. Also described is a process for the preparation of aqueous thiocarboxylate salt from a sulfide and/or hydrosulfide and an acid chloride and/or acid anhydride.
    Type: Application
    Filed: June 30, 2004
    Publication date: December 15, 2005
    Inventors: Richard Cruse, Tiberiu Simandan