Process for the production of gamma quinacridone

Details Process for the production of gamma quinacridone Process for the production of gamma quinacridone

1974-10-29

1976-02-24

Gallagher, R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 4800

Patent

active

039403998

ABSTRACT:
A method is provided for the direct production of the gamma crystalline phase of quinacridone. The method comprises ring closing a mixture of dianilinoterephthalic acid and 10 - 20 weight percent of di-(ortho substituted) anilinoterephthalic acid in polyphosphoric acid and thereafter diluting the product with water.

REFERENCES:
patent: 3257405 (1966-06-01), Gerson et al.
patent: 3342823 (1967-09-01), Dien

Affiliated with

Also associated with

Rating

Process for the production of gamma quinacridone 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 the production of gamma quinacridone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the production of gamma quinacridone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2079306