US PATENT SUBCLASS 430 / 214
.~.~.~.~ Having either a nonradiation sensitive scavenger layer, or an ingredient for forming scavenger or barrier layer, or an identified developing agent scavenger

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

199  DF  TRANSFER PROCEDURE BETWEEN IMAGE AND IMAGE LAYER, IMAGE RECEIVING LAYERS, OR ELEMENT CONTAINING AN IMAGE RECEIVING LAYER OR AN INGREDIENT FOR FORMING AN IMAGE RECEIVING LAYER {3}
202  DF  .~ Diffusion transfer process, element, or identified image receiving layers therefor {8}
211  DF  .~.~ Element or identified image receiving layers for dye image formation {1}
212  DF  .~.~.~ Element containing silver salt sensitizer or either element or image receiving layer for use therewith {8}
214.~.~.~.~ Having either a nonradiation sensitive scavenger layer, or an ingredient for forming scavenger or barrier layer, or an identified developing agent scavenger

DEFINITION

Classification: 430/214

Having either a nonradiation sensitive scavenger layer, or an ingredient for forming scavenger or barrier layer, or an identified developing agent scavenger:

(under subclass 212) Element containing a nonradiation sensitive scavenger layer, other than the image receiving layer, which is not capable of preventing the diffusion therethrough of some diffusible ingredient, including water, hydrogen, and hydroxyl ions, present in the element during processing but is capable of preventing the through diffusion of at least one other diffusible ingredient present in the element before, during, or after processing, or containing an ingredient during the processing operation which forms a scavenger or barrier layer, other than the image receiving layer, or containing an identified ingredient, other than a dye image forming compound, which reacts with silver halide

developing agent or derivatives thereof to scavenge or render radiant s:graphically innocuous excess or undesired developing agent.

(1) Note. Layers impermeable to water, hydrogen ions or hydroxyl ions prior to processing the element which contains the same are not considered to be scavenger layers and ingredients for forming same.