US PATENT SUBCLASS 430 / 93
.~.~.~.~.~.~.~ Cyanine dye


Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

31  DF  ELECTRIC OR MAGNETIC IMAGERY, E.G., XEROGRAPHY, ELECTROGRAPHY, MAGNETOGRAPHY, ETC., PROCESS, COMPOSITION, OR PRODUCT {18}
56  DF  .~ Radiation-sensitive composition or product {10}
84  DF  .~.~ Inorganic radiation conductive composition {4}
87  DF  .~.~.~ Zinc containing {3}
90  DF  .~.~.~.~ Sensitized or doped {1}
91  DF  .~.~.~.~.~ Dye or pigment {1}
92  DF  .~.~.~.~.~.~ Intercyclic-acyclic -CH= or intercyclic-acyclic chain which contains -CH= {1}
93.~.~.~.~.~.~.~ Cyanine dye


DEFINITION

Classification: 430/93

Cyanine dye:

(under subclass 92) Compositions in the form of a compound which contains two distinct heterocyclic rings, each individual heterocyclic ring containing at least one nitrogen atom, said nitrogen atoms of the individual rings being joined through a resonating acyclic carbon chain which contains -CH= or a conjugated chain which contains -CH=, e.g., [figure]