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
Portable hand-held multi-function device for storing, managing and combining rewards
Transparent conductive structure
Voltage detecting device for LED driver
System and method to obtain signal acquisition assistance data
Semiconductor device
System for and method of providing single sign-on (SSO) capability in an application publishing environment
Cantilever of scanning probe microscope and method for manufacturing the same, method for inspecting thermal assist type magnetic head device and its apparatus
  Randomly Featured Patents
Cap with integrated storage pouches
Cigarette making machine hopper
Weight scale
Decorating plate of ceiling fan
Infusion package
Spectrally efficient photodiode for backside illuminated sensor
Methods of operating portable computerized device with network security
Apparatus and method for finishing radial commutator
2-pyridyl substituted imidazoles as ALK5 and/or ALK4 inhibitors
Switch capacitor D/A converter having a distortion reducing capacitor