Patents by Inventor Richard Edward VON Rutte

Richard Edward VON Rutte 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).

  • Antistatic composition containing an aliphatic polyester or polyether ester and a phosphonium salt
    Patent number: 4038258
    Abstract: Conductive compositions useful in imparting antistatic properties in filaments and other articles are provided, which comprise N-alkyl polycarbonamides, polyesters or polyetheresters having a Tg (NMR) less than 25.degree. C and from 0.02 to 35 weight percent of a phosphonium salt of a phosphonate, phosphinate, or sulfonate.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: July 26, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Gurdial Singh, Richard Edward Von Rutte
  • Antistatic composition containing an N-alkyl polycarbonamide and a phosphonium salt
    Patent number: 4005057
    Abstract: Conductive compositions useful in imparting antistatic properties in filaments and other articles are provided, which comprise N-alkyl polycarbonamides, polyesters or polyetheresters having a Tg (NMR) less than 25.degree. C and from 0.02 to 35 weight percent of a phosphonium salt of a phosphonate, phosphinate, or sulfonate.
    Type: Grant
    Filed: September 17, 1975
    Date of Patent: January 25, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Gurdial Singh, Richard Edward VON Rutte