G - Physics – 03 – G
Patent
G - Physics
03
G
31/153, 96/44
G03G 5/09 (2006.01) G03G 5/06 (2006.01)
Patent
CA 1057552
Abstract of the Disclosure A specific class of crystalline organic pigments having the formula Image wherein n is 1 or 2; X consists of the atoms necessary to complete a naphthalene, anthracene, or Image ring; R1, R2 and R3 are independently selected from the group consisting of hydrogen, halogen, alkoxy, NO2, alkyl, SO3H or alkali metal salts thereof, and COOH or alkali metal salts thereof; and wherein R2 and R3 can comprises the atoms necessary to complete a phenyl, naphthyl or anthryl ring; and R is selected from the group consisting of Image , or COOM wherein M is alkyl or an alkali or alkaline earth metal is useful as sensitizers for photoconductive compositions in electrophotographic processes. -1-
224287
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