Colorless salts of heteropolyacids as charge control substances

Details Colorless salts of heteropolyacids as charge control substances Colorless salts of heteropolyacids as charge control substances

1988-11-03

1990-05-22

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

544225, 546 10, 548404, G03G 908, C07F 506, C07F 702, C07F 1100

Patent

active

049277294

ABSTRACT:
Heteropolyacid salts of the formula ##STR1## R.sup.1 and R.sup.2 independently of one another stand for hydrogen, chlorine, bromine, hydroxyl, C.sub.1 - to C.sub.4 -alkoxy, nitro or carboxyl,

REFERENCES:
patent: 4493883 (1985-01-01), Gruber et al.
patent: 4683188 (1987-07-01), Suzuki et al.
patent: 4812379 (1989-03-01), Harnisch et al.

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