Patents by Inventor Marian M. Rousek

Marian M. Rousek 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).

  • Process for the synthesis of a copolyester adhesive resin
    Patent number: 4921929
    Abstract: Isophthalic acid is commonly utilized as a comonomer in the preparation of copolyester resins which are utilized as solution adhesives. Unfortunately, solutions of such resins frequently become hazy due to the presence of cyclic oligomers. This invention is based upon the unexpected discovery that the presence of protonic acids during the synthesis of the copolyester resins containing isophthalic acid utilizing conventional metallic catalysts results in solutions of the resins in organic solvents being virtually haze free.
    Type: Grant
    Filed: March 28, 1989
    Date of Patent: May 1, 1990
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: John R. Wilson, Marian M. Rousek, Fred L. Massey
  • Process for the synthesis of a copolyester adhesive resin
    Patent number: 4835247
    Abstract: Isophthalic acid is commonly utilized as a comonomer in the preparation of copolyester resins which are utilized as solution adhesives. Unfortunately, solutions of such resins frequently become hazy due to the presence of cyclic oligomers. This invention is based upon the unexpected discovery that the presence of protonic acids during the synthesis of the copolyester resins containing isophthalic acid utilizing conventional metallic catalysts results in solutions of the resins in organic solvents being virtually haze free.
    Type: Grant
    Filed: August 8, 1988
    Date of Patent: May 30, 1989
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: John R. Wilson, Marian M. Rousek, Fred L. Massey