Patents by Inventor Kevin J. Edgar

Kevin J. Edgar 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).

  • Miscible blends of cellulose esters and vinylphenol containing polymers
    Patent number: 5302637
    Abstract: There are provided novel miscible blend compositions comprising (a) a cellulose ester and (b) a vinylphenol containing polymer. The blends do not exhibit large scale phase separation and provide properties which are essentially intermediate between those of either cellulose ester or vinylphenol containing polymers. The blends are useful for both molded and film applications as well as for coatings.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: April 12, 1994
    Assignee: Eastman Kodak Company
    Inventors: Christine J. T. Landry, David M. Teegarden, Kevin J. Edgar, Stephen S. Kelley
  • Cellulose acetoacetates
    Patent number: 5292877
    Abstract: Water soluble cellulose acetoacetates 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 in a solvent system comprising lithium chloride plus a carboxamide. Compositions containing the cellulose acetoacetates and, optionally, a crosslinking agent are useful for coatings applications.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: March 8, 1994
    Assignee: Eastman Kodak Company
    Inventors: Kevin J. Edgar, William W. Blount, Jr.
  • Cellulose ester compositions and process for the preparation thereof
    Patent number: 5142034
    Abstract: Process for reducing the degree of substitution of cellulose esters employing Lewis acids as solvolysis promoters is disclosed. Novel low degree of substitution cellulose esters produced by the invention process are also described.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: August 25, 1992
    Assignee: Eastman Kodak Company
    Inventors: Michael Bellas, Charles M. Buchanan, Kevin J. Edgar, Ted C. Germroth, Alan K. Wilson
  • Process for the iodination of hydroxyaromatic and aminoaromatic compounds
    Patent number: 4997946
    Abstract: A method of iodinating hydroxyaromatic and aminoaromatic compounds is disclosed, comprising reacting the hydroxyaromatic or aminoaromatic compound with an aqueous solution of a metal iodide and a metal hypochlorite at a temperature about -100.degree. to 100.degree. C. in the presence of an alcohol having 1-10 carbon atoms.
    Type: Grant
    Filed: August 18, 1987
    Date of Patent: March 5, 1991
    Assignee: Eastman Kodak Company
    Inventors: Kevin J. Edgar, Guy R. Steinmetz
  • Preparation of 4-substituted aryl olefins
    Patent number: 4965361
    Abstract: Process is disclosed for the preparation of 4-substituted aryl olefins from 4-substituted aryl iodides. 4-Substituted aryl iodides are contacted with an olefin in an ester solvent in the presence of a catalyst system comprising a palladium compound and a Bronsted base.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: October 23, 1990
    Assignee: Eastman Kodak Company
    Inventor: Kevin J. Edgar
  • Process for the carbonylation of iodoaromatic compounds
    Patent number: 4885384
    Abstract: A process for the production of aromatic carboxylic acids which comprises carbonylating substituted iodoaromatic compounds in the presence of carbon monoxide, a catalytic amount of a transition metal catalyst, and a Bronsted base in a mixture of a carboxylic acid and water under aromatic carboxylic acid forming conditions of temperature and pressure.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: December 5, 1989
    Inventors: Guy R. Steinmetz, Kevin J. Edgar, Stephen N. Falling
  • Preparation of 2,4,6-trichlorophenylhydrazine
    Patent number: 4772747
    Abstract: Disclosed is a process for the preparation of 2,4,6-trichlorophenylhydrazine by chlorinating the reaction product of phenylhydrazine and a dicarboxylic anhydride to obtain an N-(2,4,6-trichloroanilino)dicarboximide which is reacted with a base capable of liberating 2,4,6-trichlorophenylhydrazine therefrom.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: September 20, 1988
    Assignee: Eastman Kodak Company
    Inventors: Kevin J. Edgar, John A. Hyatt