US PATENT SUBCLASS 430 / 559
.~.~.~ Dye containing

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

495.1  DF  RADIATION SENSITIVE PRODUCT {7}
541  DF  .~ Identified radiation sensitive composition with color producing substance {1}
542  DF  .~.~ Silver compound sensitizer {2}
559.~.~.~ Dye containing {2}
560  DF  .~.~.~.~> And optical sensitizer
561  DF  .~.~.~.~> Azo dye {2}

DEFINITION

Classification: 430/559

Dye containing:

(under subclass 542) Compositions containing a preformed dye before exposure.

(1) Note. Such dyes are usually azo dyes, anthroquinone dyes, indigo dyes, phthalocyanine dyes, etc., and are usually used in a silver-dye-bleach process and in dye diffusion transfer process.

SEE OR SEARCH THIS CLASS, SUBCLASS:

199, for dye image diffusion transfer process.

390, for other processes involving exposed compositions of this subclass.

543, 553, 555, and 557, for compositions containing two-equivalent couplers containing a dye moiety attached to the coupling ring.