Patents by Inventor Geraldus Cornelis Overbeek

Geraldus Cornelis Overbeek 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 NMP aqueous polyurethane composition with reactive diluent
    Patent number: 7951457
    Abstract: An aqueous composition comprising a polyurethane dispersion with a sediment content ?5%, wherein the polyurethane has an acid value in the range of from 25 to 65 mgKOH/g and comprises (i) 36 to 60 wt % of at least one aromatic polyisocyanate and where the polyurethane is prepared in the presence of (a) ?5 wt % of 1-methyl-2-pyrrolidinone by weight of the polyurethane and (b) at least one reactive diluent.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: May 31, 2011
    Assignee: DSM IP Assets B.V.
    Inventors: Ilse Casteren Van, Marc Roelands, Geraldus Cornelis Overbeek, Richard George Coogan, Ronald Tennebroek, Ann Kuzmin