Phenylhydrazones
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United States of America Patent
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-
Aug 14, 1984
Grant Date -
N/A
app pub date -
Dec 29, 1982
filing date -
Jan 16, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Phenylhydrazones of the formula ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl or phenyl-C.sub.1 -C.sub.4 -alkyl, or is phenyl which is unsubstituted or substituted by alkyl, alkoxy or halogen, or is a radical ##STR2## R.sup.2 is alkyl or is phenyl which is unsubstituted or substituted by alkyl, alkoxy or halogen, and R.sup.4 and R.sup.5 independently of one another are each H, alkyl, alkoxy or halogen, are very useful as charge carrier-transporting compounds for electrophotographic recording materials.
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