Patents by Inventor William Carl Seidel

William Carl Seidel 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 triarylborane
    Patent number: 4076756
    Abstract: Preparation of triarylboranes, e.g. triphenylborane by reacting an alkali metal, e.g. sodium; an organohalide, e.g. chlorobenzene and an orthoborate ester, e.g. triisopropylorthoborate in an inert organic solvent, recovering the borane by contacting the reaction product with water, removing alcohol from the aqueous mixture and contacting the resultant material with acid to a pH not less than about 6 to form the borane.
    Type: Grant
    Filed: November 12, 1975
    Date of Patent: February 28, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Nicholas Nazarenko, William Carl Seidel
  • Process for the preparation of triarylboranes
    Patent number: 4045495
    Abstract: Preparation of triarylboranes, e.g. triphenylborane by reacting an alkali metal, e.g. sodium; an organohalide, e.g. chlorobenzene and an orthoborate ester, e.g. triisopropylorthoborate in an inert organic solvent, recovering the borane by contacting the reaction product with water while maintaining the ratio of borane to hydrolysis products (e.g. borinic acid) at at least 13/1, distilling volatiles from the aqueous mixture and contacting the resultant material with acid to a pH not less than about 6 to form the borane.
    Type: Grant
    Filed: November 12, 1975
    Date of Patent: August 30, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Nicholas Nazarenko, William Carl Seidel