US PATENT SUBCLASS 430 / 58.4
.~.~.~.~.~ Hydrazone containing

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

31  DF  ELECTRIC OR MAGNETIC IMAGERY, E.G., XEROGRAPHY, ELECTROGRAPHY, MAGNETOGRAPHY, ETC., PROCESS, COMPOSITION, OR PRODUCT {18}
56  DF  .~ Radiation-sensitive composition or product {10}
57.1  DF  .~.~ Having plural conductive layers {2}
58.05  DF  .~.~.~ Charge transport layer {8}
58.35  DF  .~.~.~.~ Organic nitrogen in charge transport layer {3}
58.4.~.~.~.~.~ Hydrazone containing {1}
58.45  DF  .~.~.~.~.~.~> Additional nitrogen attached indirectly to the hydrazone group by nonionic bonding

DEFINITION

Classification: 430/58.4

Hydrazone compound:

(under subclass 58.35) Subject matter wherein the organic nitrogen compound is a hydrazone compound, i.e., compound of the formula R 2N-N=CR 2[end subscrpt], wherein: R is H, or an organic carbon containing radical with at least one R being an organic carbon containing radical.