Patents by Inventor Arnold Frances

Arnold Frances 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).

  • Elastomer/aramid fiber dispersion
    Patent number: 5391623
    Abstract: A process is disclosed for preparing a masterbatch composition of elastomer with a high concentration of aramid fibers, as the sole particulate component, distributed therethroughout.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: February 21, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Arnold Frances
  • Fibrid reinforced elastomers
    Patent number: 5331053
    Abstract: Polymeric fibrids reinforce elastomers to yield well-blended products of high modulus and elongation.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: July 19, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Dexter L. Atkinson, Arnold Frances, Lee J. Hesler
  • Method of making fibrids
    Patent number: 5209877
    Abstract: A thickener for liquids is disclosed. The thickener consists of organic polymer fibrid particles with a very small size, a very high aspect ratio, and very low bulk density. The thickener is made by drying newly-coagulated fibrid particles in a way that results in high particulate surface area.
    Type: Grant
    Filed: March 19, 1992
    Date of Patent: May 11, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Arnold Frances, Lee J. Hesler, James E. Van Trump, Rita M. Vasta
  • Fiber containing particulate elastomeric composition
    Patent number: 4514541
    Abstract: A particulate elastomeric composition having a density ratio of 0.1 to 0.4 comprising 5-75% by weight of an elastomer, 15-65% by weight of a filler and 10-60% by weight of aramid pulp and a solution process for its preparation. The composition is useful as a masterbatch for the introduction of aramid pulp into elastomeric articles.
    Type: Grant
    Filed: May 21, 1984
    Date of Patent: April 30, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Arnold Frances