Patents by Inventor Weiwen Dong

Weiwen Dong 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).

  • Synergistic combinations of platinum compounds and rhodium compounds as catalysts in hydrosilylations
    Patent number: 11180613
    Abstract: Composition for use as catalyst in hydrosilylations, comprising at least one platinum compound selected from the group consisting of Pt[(Me2SiCH?CH2)2O]2 and Pt2[(Me2SiCH?CH2)2O]3 and at least one rhodium compound selected from the group consisting of Rh(acac)(CO)2, Rh2(CO)4Cl2, [Rh(cod)Cl]2, Rh(acac)(cod), RhH(CO)(PPh3)3, Rh(CO)(PPh3)(acac), RhCl(CO)(PPh3)2, and Rh-2-ethylhexanoate at a molar ratio of Pt/Rh in the range of 0.1 to 100.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: November 23, 2021
    Assignee: HERAEUS DEUTSCHLAND GMBH & CO. KG
    Inventors: Walter Lässig, Weiwen Dong, Richard Walter, Detlef Gaiser, Jörg Fuchs Alameda
  • SYNERGISTIC COMBINATIONS OF PLATINUM COMPOUNDS AND RHODIUM COMPOUNDS AS CATALYSTS IN HYDROSILYLATIONS
    Publication number: 20200115504
    Abstract: Composition for use as catalyst in hydrosilylations, comprising at least one platinum compound selected from the group consisting of Pt[(Me2SiCH?CH2)2O]2 and Pt2[(Me2SiCH?CH2)2O]3 and at least one rhodium compound selected from the group consisting of Rh(acac)(CO)2, Rh2(CO)4Cl2, [Rh(cod)Cl]2, Rh(acac)(cod), RhH(CO)(PPh3)3, Rh(CO)(PPh3)(acac), RhCl(CO)(PPh3)2, and Rh-2-ethylhexanoate at a molar ratio of Pt/Rh in the range of 0.1 to 100.
    Type: Application
    Filed: December 19, 2017
    Publication date: April 16, 2020
    Inventors: Walter Lässig, Weiwen Dong, Richard Walter, Detlef Gaiser, Jörg Fuchs Alameda