Patents by Inventor Hasen Ulubay

Hasen Ulubay 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).

  • Amphoteric polymer dispersion
    Patent number: 6255427
    Abstract: An amphoteric polymer dispersion obtained in the presence of at least one of starch or a starch derivative by a two-stage polymerization using anionic and cationic monomers is useful as a sizing agent for paper products, as a coating for various substrates, and as a binder in pigment-free coatings or pigment-containing coatings. The dispersion is exceptionally compatible with widely differing sizing agent systems and coating chemicals.
    Type: Grant
    Filed: January 13, 1999
    Date of Patent: July 3, 2001
    Assignee: Giulini Chemie GmbH
    Inventors: Reiner Exner, Hasen Ulubay, Karl Hetterich