Patents by Inventor Ira S. Katuran

Ira S. Katuran 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 acid functional polyols, polyurethanes and methods for making same
    Patent number: 6103822
    Abstract: Polymeric acid functional polyols are provided which are the reaction product of at least one hydroxyl-terminated polymer and a nonaromatic polyanhydride. Polymeric acid functional polyols are also provided which are the esterification reaction product of a first component which is at least one of an aliphatic dicarboxylic acid, a polyol and mixtures thereof and a second component which has at least two unhindered functional groups and at least one hindered carboxylic acid functional group. Methods of making such polymeric acid functional polyols by reacting a hydroxyl-terminated polymer and a nonaromatic dianhydride or by the esterification reaction of the first and second component described herein are also included in the invention. Further, hydrophilic polyurethane foams and water borne polyurethanes formed from the reaction of these polymeric acid functional polyols with polyisocyanates are also provided.
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: August 15, 2000
    Assignee: Inolex Investment Corporation
    Inventors: Tyler Housel, Ira S. Katuran, Rocco Burgo
  • Polymeric acid functional polyols, polyurethanes and methods for making same
    Patent number: 5880250
    Abstract: Polymeric acid functional polyols are provided which are the reaction product of at least one hydroxyl-terminated polymer and a nonaromatic polyanhydride. Polymeric acid functional polyols are also provided which are the esterification reaction product of a first component which is at least one of an aliphatic dicarboxylic acid, a polyol and mixtures thereof and a second component which has at least two unhindered functional groups and at least one hindered carboxylic acid functional group. Methods of making such polymeric acid functional polyols by reacting a hydroxyl-terminated polymer and a nonaromatic dianhydride or by the esterification reaction of the first and second component described herein are also included in the invention. Further, hydrophilic polyurethane foams and water borne polyurethanes formed from the reaction of these polymeric acid functional polyols with polyisocyanates are also provided.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: March 9, 1999
    Assignee: Inolex Investment Corporation
    Inventors: Tyler Housel, Ira S. Katuran, Rocco Burgo, Oleg I. Bleyman