US PATENT SUBCLASS 430 / 231
.~.~.~ Identified precipitation nuclei or image receiving layer binder containing other than nominal gelatin

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}
227  DF  .~.~ Element or image receiving layers for silver salt or silver complex transfer {6}
231.~.~.~ Identified precipitation nuclei or image receiving layer binder containing other than nominal gelatin {1}
232  DF  .~.~.~.~> Identified organic polymeric image receiving layer binder other than nominal gelatin

DEFINITION

Classification: 430/231

Identified precipitation nuclei or image receiving layer binder containing other than nominal gelatin:

(under subclass 227) Subject matter containing an identified ingredient which causes, aids, or increases precipitation of silver from diffusible silver salts or diffusible silver complexes, or an identified binder other than a broadly defined gelatin, in an image receiving layer.

SEE OR SEARCH CLASS

516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,

9+, for continuous liquid phase colloid systems (e.g., foams, emulsions, suspensions, dispersions); subclasses 98+ for colloid systems of continuous or semicontinuous solid phase with discontinuous liquid phase (gels, pastes, flocs, coagulates) or agents for such systems or making or stabilizing such systems or agents; in each instance, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.