Patents by Inventor Frederick M. Teskin

Frederick M. Teskin 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).

  • Nucleation of propylene polymers
    Patent number: 4704421
    Abstract: Propylene polymers produced by high-activity support based coordination catalysts are effectively nucleated with benzoic acid and adipic acid, yielding molding resins of high clarity.
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: November 3, 1987
    Assignee: El Paso Products Company
    Inventor: Frederick M. Teskin
  • Polypropylene compositions of improved clarity
    Patent number: 4692489
    Abstract: Incorporation of an ethoxylated amine in a sodium benzoate nucleated propylene polymer resin synergistically improves clarity as well as yellowness over what is achieved by use of sodium benzoate or ethoxylated amine alone.
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: September 8, 1987
    Assignee: El Paso Products Company
    Inventors: Harold K. Ficker, Frederick M. Teskin
  • Injection blow molding grade propylene polymers
    Patent number: 4684683
    Abstract: An injection blow molding grade resin or improved clarity and processability is obtained by incorporating N,N.sup.1 -ethylene bisstearamide and an ethoxylated amine into a sodium benzoate nucleated propylene polymer.
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: August 4, 1987
    Assignee: El Paso Products Company
    Inventors: Harold K. Ficker, Frederick M. Teskin