Process for preparing .chi.-form metal free phthalocyanine

Details Process for preparing .chi.-form metal free phthalocyanine Process for preparing .chi.-form metal free phthalocyanine

1998-10-16

2000-11-21

Shah, Mukund J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540122, 540140, 430 58, 430 78, C09B 6750, C09B 4704, G03G 506

Patent

active

061505188

ABSTRACT:
A process for preparing .chi.-form metal free phthalocyanine comprising: dry milling amorphous-like .alpha.-form metal free phthalocyanine to form .chi.-form metal free phthalocyanine partially; and wet milling or dispersing with stirring the resulting polymorph mixture in the presence of a cyclic organic solvent comprising an amide moiety. A simple process for preparing high-pure .chi.-form H2-Pc suitable as a charge generating meterial of an organic photoreceptor is provided, by improving the conventional technique for preparing .chi.-form H2-Pc.

REFERENCES:
patent: 3357989 (1967-12-01), Byrne et al.
patent: 5100752 (1992-03-01), Hsaio et al.
patent: 5585483 (1996-12-01), Tamura et al.
patent: 5824800 (1998-10-01), Tamura et al.

Affiliated with

Also associated with

Rating

Process for preparing .chi.-form metal free phthalocyanine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing .chi.-form metal free phthalocyanine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing .chi.-form metal free phthalocyanine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1258677