US PATENT SUBCLASS 427 / 151
.~.~ Heterocyclic organic compound component

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

146  DF  TRANSFER OR COPY SHEET MAKING {4}
150  DF  .~ Reactive components {1}
151.~.~ Heterocyclic organic compound component

DEFINITION

Classification: 427/151

(under subclass 150) Processes in which at least one of the reactive components is a heterocyclic organic compound.

(1) Note. The reactive components are usually referred to as leuco, or colorless, color forming materials.