| 摘要 |
1,263,713. Photoconductive composition. AGFA GEVAERT. 16 June, 1969 [5 July, 1968], No. 32351/68. Heading H1K. [Also in Divisions C4 and G2-G3] A mixture of cyanine dyes for sensitizing photoconductive (especially ZnO/binder) materials are of formulµ (in which R 1 and R 2 are the same and stand for allyl, cycloalkyl or optionally substituted alkyl or aryl; Z 1 and Z 2 are the same and each complete a heterocyclic nucleus haying 5 or 6 atoms in the heterocyclic ring; X is an anion or is absent; M is a cation). The dyes are prepared by conventional condensation reaction. |
