Patents by Inventor Paul F. D'Angelo

Paul F. D'Angelo 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).

  • Stable liquid delivery system for acyl isethionates
    Patent number: 5925603
    Abstract: Concentrated mixtures of three or more surfactants dissolved or dispersed in a stable form in water and which contain an acyl isethionate, an imidazoline surfactant, and at least one additional anionic surfactant are provided.
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: July 20, 1999
    Assignee: Rhodia Inc.
    Inventor: Paul F. D'Angelo
  • Detergent resistant compositions
    Patent number: 4273584
    Abstract: Detergent resistant compositions made by blending (I) a hydroxy-terminated polydimethylsiloxane, (II) an amino-polysilane, and (III) an optionally partially hydrolyzed organotrialkoxysilane can be employed in such end-use applications as car polishes and vinyl protectants.
    Type: Grant
    Filed: December 7, 1979
    Date of Patent: June 16, 1981
    Assignee: Union Carbide Corporation
    Inventors: Paul F. D'Angelo, Richard B. Metzler
  • Process for improving barrier properties of polymers
    Patent number: 4142032
    Abstract: A process is provided for achieving significant improvements in the barrier properties of polymeric articles, such as films and containers, by surface treatment with both fluorine and bromine. The process is conducted at moderate temperatures, short treatment times and near one atmosphere pressure.
    Type: Grant
    Filed: December 29, 1977
    Date of Patent: February 27, 1979
    Assignee: Union Carbide Corporation
    Inventor: Paul F. D'Angelo