Patents by Inventor Harry Bugbird Copelin

Harry Bugbird Copelin 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).

  • Preparation of an acetal from a diol and acrolein
    Patent number: 4108869
    Abstract: A process for preparing an acetal from acrolein and a 1,3-diol whereby substantially complete conversion of the acrolein to acetal is attained, by simultaneously reacting and separating by extraction the acetal and water formed from said diol and acrolein reaction, said process comprising continuously feeding a 1,3-diol and an acid catalyst countercurrent to a solvent while continuously feeding acrolein to the solvent and diol, separating the acetal-solvent from the diol-water, optionally separating the acetal and solvent and optionally separating the diol and water.
    Type: Grant
    Filed: August 25, 1977
    Date of Patent: August 22, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Harry Bugbird Copelin
  • One-step method for hydrolyzing and hydrogenating acetal-aldehydes
    Patent number: 4044059
    Abstract: A method is provided for simultaneously hydrolyzing and hydrogenating compounds containing one six-membered acetal ring and one aldehyde functional group with a water insoluble strongly acid ion exchange resin and a nickel hydrogenation catalyst.
    Type: Grant
    Filed: May 4, 1976
    Date of Patent: August 23, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Harry Bugbird Copelin