Patents by Inventor Marc Bruce Goldfinger

Marc Bruce Goldfinger 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).

  • Manufacture of polysulfones
    Patent number: 6548622
    Abstract: Polysulfones are manufactured by reacting a sulfuric acid or sulfur trioxide with a bireactive aromatic compound, using as a “promoter” a carboxylic acid anhydride. The product polymers are useful as molding resins.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: April 15, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Marc Bruce Goldfinger
  • Manufacture of polyketones
    Patent number: 6538098
    Abstract: Polyketones are manufactured by reacting an aromatic carboxylic acid with a biractive aromatic compound, using as a catalyst a combination of a carboxylic acid anhydride and phosphoric acid, or equivalent thereof. The product polymers are useful as molding resins.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: March 25, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Marc Bruce Goldfinger
  • Thermoplastic elastomers
    Patent number: 6300463
    Abstract: Thermoplastic elastomeric polymers which contain polyether blocks having tetramethylene ether repeat units, and polyamide blocks, have improved elastomeric properties such as higher unload power and lower tensile set, when the polyether blocks also contain 2-alkyltetramethylene ether repeat units. The polymers are useful as molding resins and for fibers.
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: October 9, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Garret Daniel Figuly, Marc Bruce Goldfinger