Patents by Inventor Jonathan E. Lawniczak

Jonathan E. Lawniczak 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).

  • 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
  • Cellulose acetoacetate esters
    Patent number: 5521304
    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: February 27, 1995
    Date of Patent: May 28, 1996
    Assignee: Eastman Chemical Company
    Inventors: Kevin J. Edgar, Jonathan E. Lawniczak
  • Cellulose acetoacetate esters
    Patent number: 5420267
    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: October 12, 1993
    Date of Patent: May 30, 1995
    Assignee: Eastman Chemical Company
    Inventors: Kevin J. Edgar, Jonathan E. Lawniczak
  • Aqueous coating composition comprising chlorinated polyolefin
    Patent number: 5198485
    Abstract: Disclosed is a composition comprising(A) a chlorinated polyolefin,(B) a cationic surfactant,(C) glacial acetic acid,(D) a salt of an oxyacid of sulfur, and(E) water.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: March 30, 1993
    Assignee: Eastman Kodak Company
    Inventors: Greg A. King, Stephen L. Poteat, Paul J. Greene, Jonathan E. Lawniczak, James A. Stykes