US PATENT SUBCLASS 430 / 304
.~.~.~ Coating over colloid image and removal of colloid image to leave reversed image in coating, i.e., deep etch

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

269  DF  IMAGING AFFECTING PHYSICAL PROPERTY OF RADIATION SENSITIVE MATERIAL, OR PRODUCING NONPLANAR OR PRINTING SURFACE - PROCESS, COMPOSITION, OR PRODUCT {17}
300  DF  .~ Making printing plates {6}
302  DF  .~.~ Lithographic {3}
304.~.~.~ Coating over colloid image and removal of colloid image to leave reversed image in coating, i.e., deep etch

DEFINITION

Classification: 430/304

Coating over colloid image and removal of colloid image to leave reversed image in coating, i.e., deep etch:

(under subclass 302) Processes wherein the image is obtained by overcoating an imaged and developed radiation-sensitive layer with a material which remains after removal of the image and developed layer.

(1) Note. The processing procedure of this subclass produces a reversal of the location of the image used as or to form a printing plate.