| 摘要 |
1316667 Electro-photographic developers XEROX CORP 21 May 1970 [26 May 1969] 24637/70 Heading G2H [Also in Division C4] Benzobrazanquinone pigments of the general formula wherein R 7 is NH, O, S, or Se, R 1 -R 6 are carbon or nitrogen, 0-4 of R 1 -R 6 being nitrogen; X is alkyl e.g. CH 3 or C 2 H 5 , aryl, alkoxy e.g. OCH 3 NOC 2 H 5 , carboxylic acid or ester e.g. COOCH 3 or COOC 2 H 5 , CF 3 , NO 2 , CN, SO 2 NH 2 , SO 2 NHC 6 H 5 , Cl, Br, I, F, or H: m is an integer from 0-10 when R 7 # NH and from 1 to 10 when R 7 = NH; and n is an integer from 1-5, are used in electrophoretic imaging processes. |
