Patents Assigned to Eastman Chemical Comany
  • Cellulose acetoacetate esters used in coating compositions
    Patent number: 5595591
    Abstract: Water soluble or water-dispersible cellulose acetoacetate esters are prepared by contacting a cellulose material with diketene, an alkyl acetoacetate, 2,2,6-trimethyl-4H-1,3-dioxin-4-one or a mixture thereof and a carboxylic anhydride in a solvent system comprising lithium chloride plus a carboxamide. Compositions containing the cellulose acetoacetate esters are useful for coatings applications.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: January 21, 1997
    Assignee: Eastman Chemical Comany
    Inventors: Kevin J. Edgar, Jonathan E. Lawniczak