Patents by Inventor Timothy W. Rhoads

Timothy W. Rhoads 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).

  • Polymeric composition comprising transient foam control agent
    Patent number: 5189071
    Abstract: A foamable composition comprising an alkenyl aromatic polymer, blowing agent and a transient foam control agent that is effective to reduce polymer melt viscosity in the melt phase but nonmiscible and nondetrimental to the solid polymer.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: February 23, 1993
    Assignee: The Dow Chemical Company
    Inventors: Timothy W. Rhoads, Kyung W. Suh, Takao Kadota, William G. Stobby
  • Polymeric composition comprising transient foam control agent
    Patent number: 5189072
    Abstract: A foamable composition comprising an alkenyl aromatic polymer, blowing agent and a transient foam control agent that is effective to reduce polymer melt viscosity in the melt phase but nonmiscible and nondetrimental to the solid polymer.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: February 23, 1993
    Assignee: The Dow Chemical Company
    Inventors: Timothy W. Rhoads, Takao Kadota, Kyung W. Suh, William G. Stobby
  • Plasticizers for expandable styrene-acrylonitrile resin
    Patent number: 5071606
    Abstract: Novel, expandable polymeric blends comprising at least one vinylaromatic monomer-acylonitrile resinous material, an effective amount of at least one blowing agent, and from about 0.2 to about 1.0 percent by weight, based on the weight of resinous material, of an expansion aid consisting essentially of triethylene glycol. The triethylene glycol expansion aid unexpectedly reduces the amount of expansion agent required to expand the composition, particularly to low density products, without adversely affecting the final properties of the foamed product.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: December 10, 1991
    Assignee: The Dow Chemical Company
    Inventors: Martin H. Tusim, Timothy W. Rhoads
  • Styrenic foam and process therefor
    Patent number: 4486550
    Abstract: Styrenic foams are prepared with water as a blowing agent component and polyhydric alcohol as a corrosion inhibitor.
    Type: Grant
    Filed: April 24, 1984
    Date of Patent: December 4, 1984
    Assignee: The Dow Chemical Company
    Inventor: Timothy W. Rhoads