Patents by Inventor Akzo N.V.

Akzo N.V. 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).

  • Method for coating a cured polyalkylene rubber substrate
    Patent number: 4205102
    Abstract: A polyalkylene rubber substrate is coated with a reaction product of a mixture of organic polyisocyanate and a polycaprolactone polyol having a molecular weight of 250 to 3500. The mixture from which the reaction product is prepared contains the organic polyisocyanate and polycaprolactone polyol in a ratio which provides between 0.8 and 1.35 hydroxyl groups per isocyanate group. The coating composition is dried after it has been applied to the substrate.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: May 27, 1980
    Assignee: Akzo N.V.
    Inventors: Akzo N.V., Arie W. Levering