Dispersing polymers for phthalocyanine pigments used in organic

Details Dispersing polymers for phthalocyanine pigments used in organic Dispersing polymers for phthalocyanine pigments used in organic

1996-04-18

1997-01-28

Martin, Roland

Radiation imagery chemistry: process, composition, or product th

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

Process of making radiation-sensitive product

430130, 430136, G03G 506

Patent

active

055976751

ABSTRACT:
A phthalocyanine pigment dispersion using a dispersing polymer having pendant quaternary ammonium salt groups to form a highly dispersed and stable millbase is described. The pigment dispersion is compatible with poly(vinylbutyral) resins and stable in ketone solvents. The pigment dispersion is particularly useful as a charge-generating or charge-transport material in an organic photoconductor construction.

REFERENCES:
patent: 5264312 (1993-11-01), Stolka et al.
patent: 5332644 (1994-07-01), McNamara

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