US PATENT SUBCLASS 430 / 543
.~.~.~ Coupler 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}
543.~.~.~ Coupler containing {12}
544  DF  .~.~.~.~> And development inhibitor or development inhibitor releasing agent
545  DF  .~.~.~.~> And identified binder
546  DF  .~.~.~.~> And solvent or emulsifier or coating aid
547  DF  .~.~.~.~> Direct positive
548  DF  .~.~.~.~> Polymeric or bis coupler
549  DF  .~.~.~.~> Mixture of couplers
550  DF  .~.~.~.~> And chemical or optical sensitizer
551  DF  .~.~.~.~> And antifoggant or color stabilizer
552  DF  .~.~.~.~> Phenol or naphthol coupler {1}
554  DF  .~.~.~.~> 2-pyrazolin-5-one coupler {1}
556  DF  .~.~.~.~> Open chain keto- methylene coupler {1}
558  DF  .~.~.~.~> Heterocyclic coupler


DEFINITION

Classification: 430/543

Coupler containing:

(under subclass 542) Subject matter containing a color producing substance in the form of a color coupler.

SEE OR SEARCH THIS CLASS, SUBCLASS:

376, for process involving exposed composition of this subclass.

449, for nonradiation sensitive compositions applied to exposed compositions of this subclass.

495.1, for radiation sensitive element having compositions of this subclass.