Patents by Inventor Norman R. Newburg, deceased

Norman R. Newburg, deceased 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).

  • Composition for making thermoset dicyclopentadiene polymer
    Patent number: 4782125
    Abstract: Disclosed is the incorporation into a two-part metathesis-catalyst system of a halogen containing hydrocarbyl additive, where the hydrocarbyl additive contains at least one trihalogen substituted atom or at least one activated halogen atom. The use of this catalyst system to polymerize dicyclopentadiene results in a thermoset polymer containing low levels of residual monomer. Also disclosed is a preferred embodiment of dicyclopentadiene polymerization where the two parts of the metathesis-catalyst system, plus dicyclopentadiene are combined in the mixing head of a reaction injection molding machine and then injected into a mold where the dicyclopentadiene rapidly sets up into a thermoset polymer.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: November 1, 1988
    Assignee: Hercules Incorporated
    Inventor: Norman R. Newburg, deceased
  • Composition for making cellular thermoset polymerized dicyclopentadiene polymer
    Patent number: 4604408
    Abstract: A composition for making a cellular thermoset polymer comprised of polymerized units of dicyclopentadiene monomer. The composition includes dicyclopentadiene, a catalyst, and a blowing agent.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: August 5, 1986
    Assignee: Hercules Incorporated
    Inventor: Norman R. Newburg, deceased
  • Cellular thermoset poly (dicyclopentadiene)
    Patent number: 4535097
    Abstract: Disclosed is a cellular thermoset poly(dicyclopentadiene) having a density of from about 0.2 to about 0.85 g/ml.
    Type: Grant
    Filed: August 26, 1983
    Date of Patent: August 13, 1985
    Assignee: Hercules Incorporated
    Inventor: Norman R. Newburg, deceased
  • Cellular thermoset poly(dicyclopentadiene)
    Patent number: 4496668
    Abstract: A cellular thermoset polymer comprised of polymerized units of dicyclopentadiene monomer, wherein the cells of said cellular polymer are small and uniform.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: January 29, 1985
    Assignee: Hercules Corporated
    Inventor: Norman R. Newburg, deceased
  • Method for making thermoset poly(dicyclopentadiene) and the product so produced
    Patent number: 4481344
    Abstract: Disclosed is the incorporation into a two-part metathesis-catalyst system of a halogen containing hydrocarbyl additive, where the hydrocarbyl additive contains at least one trihalogen substituted atom or at least one activated halogen atom. The use of this catalyst system to polymerize dicyclopentadiene results in a thermoset polymer containing low levels of residual monomer. Also disclosed is a preferred embodiment of dicyclopentadiene polymerization where the two parts of the metathesis-catalyst system, plus dicyclopentadiene are combined in the mixing head of a reaction injection molding machine and then injected into a mold where the dicyclopentadiene rapidly sets up into a thermoset polymer.
    Type: Grant
    Filed: August 26, 1983
    Date of Patent: November 6, 1984
    Assignee: Hercules Incorporated
    Inventor: Norman R. Newburg, deceased