Patents by Inventor William C. Maki

William C. Maki 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 producing organosilanes
    Patent number: 6500977
    Abstract: A process for producing an organosilane including reacting an alkene halide with a hydrogen silane in the presence of a hydrosilating catalyst. The alkene halide is present in an amount such that a molar excess of at least 5 moles per one mole of hydrogen silane is maintained.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: December 31, 2002
    Assignee: Dow Corning Corporation
    Inventors: Paul C. Dinh, Dennis E. Phillips, David L. Brandt, William C. Maki
  • Method of making N-[2-aminoethyl] aminoalkylalkoxysilanes with ethyenediamine salt recycle
    Patent number: 6452033
    Abstract: A method of preparing 3-[N-(2-aminoethyl)]aminoalkylalkoxysilanes in which ethylenediamine, ethylenediamine hydrochloride salt, and a suitable &ohgr;-chloroalkylalkoxysilane are fed to a reactor at a feed ratio of 3-40 moles total ethylenediamine per mole of chloroalkylalkoxysilane under reaction conditions to produce a such aminoalkylalkoxysilane. The proportions of ethylenediamine and ethylenediamine hydrochloride salt are controlled such that a phase containing the diamine salt is present in said reactor separate from a phase containing the aminoalkylalkoxysilane. Following said reaction, the salt phase is separated from the silane phase for recycle to the two phase reactor.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: September 17, 2002
    Assignee: Dow Corning Corporation
    Inventors: William C. Maki, Howard Bank, Steven H. Waier, Bryan Christopher McDonald