Patents by Inventor Julian C. Caesar

Julian C. Caesar 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).

  • Surfactants and hydrophilic colloid compositions and materials containing them
    Patent number: 5543555
    Abstract: Surfactants useful as dispersing aids in the preparation of compositions comprising a hydrophilic colloid having hydrophobic particles dispersed therein have the structure ##STR1## wherein R is H or methyl provided that when each n=1, each R is methyl;M is a cation; and,n is an integer from 1 to 6.Such surfactants offer coating, photographic property and processing advantages when incorporated in photographic materials comprising a support bearing a plurality of hydrophilic colloid layers including at least one light-sensitive silver halide emulsion layer wherein at least one of the underlying hydrophilic colloid layers of the material contains hydrophobic particles dispersed therein with the aid of the surfactant.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 6, 1996
    Assignee: Eastman Kodak Company
    Inventors: Alan R. Pitt, Julian C. Caesar, Danuta Gibson, Trevor J. Wear, David J. Young, Scott A. King
  • Surfactants and hydrophilic colloid compositions and materials containing them
    Patent number: 5484695
    Abstract: Surfactants useful as dispersing aids in the preparation of compositions comprising a hydrophilic colloid having hydrophobic particles dispersed therein have the structure ##STR1## wherein R is H or methyl provided that when each n=1, each R is methyl;M is a cation; and,n is an integer from 1 to 6.Such surfactants offer coating, photographic property and processing advantages when incorporated in photographic materials comprising a support bearing a plurality of hydrophilic colloid layers including at least one light-sensitive silver halide emulsion layer wherein at least one of the underlying hydrophilic colloid layers of the material contains hydrophobic particles dispersed therein with the aid of the surfactant.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: January 16, 1996
    Assignee: Eastman Kodak Company
    Inventors: Alan R. Pitt, Julian C. Caesar, Danuta Gibson, Trevor J. Wear, David J. Young, Scott A. King