Patents by Inventor Robert Benham Fish, Jr.

Robert Benham Fish, Jr. 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).

  • Patent number: 5700412
    Abstract: This invention relates to a process for making laminar articles by blending multicomponent pellets of a heterogeneous blend of a barrier resin, typically a condensation polymer, and a compatibilizer with a polyolefin. The pellets advantageously prevent segregation of the barrier resin and the compatibilizer during processing. This provides uniform, reproducible laminar articles with improved barrier properties and mechanical properties. The articles exhibit good fluid barrier and mechanical properties.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: December 23, 1997
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Vinodkumar Mehra, Robert Benham Fish, Jr.
  • Patent number: 5688868
    Abstract: An improved process for preparing thermoplastic polymer blends which contain at least 50% by weight of polyamide as a principal component with the remainder consisting essentially of an ionic polymer component which is derived from an olefin/acid copolymer in which the polyamide and the ionic polymer are combined into a uniform mixture via melt blending at high shear, and the improvement comprises simultaneously contacting the mixture while in the melt with one or more neutralizing basic metal compounds in an amount sufficient to neutralize from 100% up to 200% of the acid groups present in the ionic polymer component.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: November 18, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Robert Benham Fish, Jr.