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
Liquid crystal display device
Toy track intersection component
Method of manufacturing a plurality of electronic assemblies
Leaky wave mode solar receiver
Method and system for expanding axial coverage in iterative reconstruction in computer tomography (CT)
Accelerator for a read-channel design and simulation tool
Method and apparatus to maintain welding current to compensate for deterioration of welding contact tip
  Randomly Featured Patents
Trunk width measuring unit and visceral fat measuring device
Network path selection based on bandwidth
Method for manufacturing semiconductor device, and semiconductor device
Methods and systems for illuminating environments
Defluxing agent cleaning method and cleaning apparatus
Venturi headbox for a papermaking machine
DVD audio encoding using environmental audio tracks
Method and device for controlling at least one deceleration device and/or an output-determining actuating element of a vehicle drive device
Rose plant named Devaurora
Image forming apparatus