Patents by Inventor Paul Michael Swan

Paul Michael Swan 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).

  • Carboxyalkyl cellulose esters for use in aqueous pigment dispersions
    Patent number: 5994530
    Abstract: The present invention provides certain carboxymethyl cellulose (CMC) esters of higher acids (e.g., CMC acetate propionate, CMC propionate, CMC acetate butyrate, and CMC butyrate)having specific use in aqueous dispersions useful in formulating waterborne coating compositions containing pigments, especially metallic pigments such as aluminum flakes and mica. The esters also have specific use as wetting agents and in high solids coatings.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: November 30, 1999
    Assignee: Eastman Chemical Corporation
    Inventors: Jessica Dee Posey-Dowty, Alan Kent Wilson, Larry Gerald Curtis, Paul Michael Swan, Kab Sik Seo