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










Image Number 11 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
LED package chip classification system
Process for the production of an acylation catalyst
Circuit board and display panel assembly having the same
Topology arrangement for achieving reliable communication in wireless automotive networks
Substituted thiophene pentamers
Preparation and use of meristematic cells belonging to the Dendrobium phalaenopsis, Ansellia, Polyrrhiza, Vanilla, Cattleya and Vanda genera with high content of phenylpropanoids, hydrosoluble
Hot-press cushion material and manufacturing method of the same
  Randomly Featured Patents
Speech and music signal coder/decoder
Non-volatile memory controlling apparatus
Device and method for producing polybutylene succinate
Microwave oven having a vent grill formed as part of a door and/or control panel
Thin multi-layer circuit board having a remodeling pad layer and a metallic barrier layer with an exclusion zone
Antifungal formulations
Methods and apparatus for forming rhodium-containing layers
SWIR targeted agile raman (STAR) system for on-the-move detection of emplace explosives
Transformer coupled voltage clamp for pincushion correction circuit
Method for sorting integrated circuit devices