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
Post-processing device and image forming system
Hanger
Dual source mass spectrometry system
Projector
Method of and apparatus for evaluating an optimal irradiation amount of an electron beam for drawing a pattern onto a sample
Lead with lead stiffener for implantable electrical stimulation systems and methods of making and using
Watch chain
  Randomly Featured Patents
System for initialization of an image holder that stores images with associated audio segments
Method and system for steering a collimated light beam with a pivotable mirror
Liquid droplet ejection head, apparatus for ejecting liquid droplet, and method of producing liquid droplet ejection head
Lighting fixture with decorative elements
Optical disc drive retention assembly and electronic device utilizing the same
System for selecting a proxy pair based on configurations of autodiscovered proxies on a network
SCT of doorknob notepaper dispensers
Fragrance releasing olefinic silanes
Ink transfer arrangement and method in a printing press
Accordion door