Patents by Inventor Fred F. Hage

Fred F. Hage 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).

  • Polymer production
    Patent number: 5387649
    Abstract: Novel metallated polyolefins are produced by contacting a polyolefin having a vinylidene group in the terminal portion with organoalkali metal compound in the presence of alkali metal t-alkoxide or tertiary amine. The metallated polyolefin is used to initiate the polymerization of polymerizable monomers to produce block copolymers of at least two blocks, at least one of which is saturated polyolefin.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: February 7, 1995
    Assignee: Shell Oil Company
    Inventors: Eric J. M. DeBoer, Fred F. Hage, Adriaan A. Van Der Huizen, Carl L. Willis
  • Production of alkali metallated olefin polymers
    Patent number: 5364911
    Abstract: Novel metallated polyolefins are produced by contacting a polyolefin having a vinylidene group in the terminal portion with organoalkali metal compound in the presence of alkali metal t-alkoxide or tertiary amine. The metallated polyolefin is used to initiate the polymerization of polymerizable monomers to produce block copolymers of at least two blocks, at least one of which is saturated polyolefin.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: November 15, 1994
    Assignee: Shell Oil Company
    Inventors: Eric J. M. De Boer, Fred F. Hage, Adriaan A. Van Der Huizen, Carl L. Willis