| 摘要 |
<p>The polymeric photoconductive compositions of Specification 964,875 (including poly-N-vinyl-carbazole itself) are modified by including therein as sensitizer a hydrazine, hydrazide or hydrazone, and, if desired, a compound as described in Specification 988,361. The preferred polymers are poly-N-vinyl-carbazole and copolymers thereof with methyl methacrylate or ethyl acrylate. Specification 856,770 also is referred to.</p> |
