Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Phenylsulfamoyl couplers










Image Number 3 for United States Patent #T998007.

Ballasted primary and secondary 3'-sulfamoyl-1-hydroxy-2-naphthanilide couplers are disclosed as well as compositions and photographic elements containing these couplers in coupler solvent particles. The coupler solvent particles are comprised of a combination of a coupler solvent and the coupler capable of permitting the formation of a microcrystalline dye. Surprisingly these microcrystalline dyes exhibit a broadened absorption characteristic in the 750 to 850 mm region of the spectrum. Dye images having such absorption characteristics are particularly suited to forming integral infrared absorbing sound tracks in photographic elements, such as motion picture projection films.








 
 
  Recently Added Patents
Method and system for physical verification using network segment current
Methods and apparatus for low power out-of-band communications
Battery-operated massager and soap dispensing wand
Lubricant supplying device, process cartridge, and image forming apparatus
LCD television set capable of external connection with application processor
Wire guide
Architecture and method for multi-aspect touchscreen scanning
  Randomly Featured Patents
Hair setting compositions containing easily removable neutralized copolymers
Heat softening thermally conductive compositions and methods for their preparation
Vaccine preparation containing fatty acid as a constituent
Quaternized condensation products of trialkanolamines
Electrode forming apparatus for electric parts
Color palette providing cross-platform consistency
Speed detector device for elevator
Wind driven high pressure water pump
Molded polymer composite heater
Overlapped field detecting apparatus capable of detecting non-overlapped fields mostly overlapped