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
Image processing apparatus, image processing method, and program
Methods and apparatus for voltage selection for a MOSFET switch device
System and method for employing signoff-quality timing analysis information concurrently in multiple scenarios to reduce dynamic power in an electronic circuit and an apparatus incorporating t
Synergistic compositions for the treatment of topical viral infections
Method of forming a power supply controller and structure therefor
Relative pose estimation of non-overlapping cameras using the motion of subjects in the camera fields of view
Synthesis of 8-amino boron dipyrromethenes having blue fluorescence
  Randomly Featured Patents
Tire tread
Synchronous dynamic random-access memory
Method of tumor treatment
Tetraazabenzo[e]azulene derivatives and analogs thereof
Process and apparatus to guide a spray material to a plurality of spraying statins
Apparatus, system, and method for managing solid-state storage media
Multiple layer softgel
Data processing apparatus and data processing method
Adjustable golf club holder insert
Combination tool