Patents by Inventor David A. Iey

David A. Iey 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).

  • Low-temperature, heat-activated adhesives with high heat resistance properties
    Patent number: 6515070
    Abstract: The present invention is directed to a polymer component having controlled branching, formed from the reaction product of a prepolymer and a chain extender, which prepolymer is itself formed from the reaction product of a mixture of a non-self-associating isocyanate component, a diol component having a molecular weight from about 1500 to 6000 grams/mole and present in an amount greater than about 50% by weight based on the total weight of the prepolymer, and an ion-forming compound, where the chain extender includes an amine-containing compound and is present in an amount sufficient to react with at least about 99% of the isocyanate groups present after the prepolymer has been formed, wherein the controlled branching of the polymer includes at least one of: a hydroxy-functional component having hydroxyl functionality greater than 2.0 and a molecular weight from about 700 to 2000; or a low molecular weight component having more than two hydroxyl groups.
    Type: Grant
    Filed: September 18, 2001
    Date of Patent: February 4, 2003
    Assignee: Cytec Technology Corp.
    Inventors: Irina Kobylanska, David M. Konkus, David A. Iey