Process for the preparation of pigments of the perylene-3,4,9,10

Details Process for the preparation of pigments of the perylene-3,4,9,10 Process for the preparation of pigments of the perylene-3,4,9,10

1981-05-08

1984-02-14

Berch, Mark L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

8657, 10628721, 106288Q, C07D47106, C09B 314, C09B 6700

Patent

active

044318065

ABSTRACT:
Very pure, transparent pigments of high color strength, of the formula ##STR1## in which R is hydrogen or alkyl having 1 to 4 C atoms, X is chlorine and/or bromine and n is a number from 0 to 4 are obtained by converting the corresponding crude pigment to the sulfate, isolating the sulfate, liberating the pure product from the sulfate by hydrolysis, separating off the pure product and dry milling the anhydrous material, with or without additives and with or without subsequent solvent finishing. These pigments are suitable for coloring paints and plastic compositions, especially for pigmenting metallic paints.

REFERENCES:
patent: 3615800 (1971-10-01), Spietschka et al.
patent: 3976649 (1976-08-01), Fabian
patent: 4018791 (1977-04-01), Spietschka et al.
Spietschka et al., Chem. Abs. 83, 99211 (1975).

Affiliated with

Also associated with

Rating

Process for the preparation of pigments of the perylene-3,4,9,10 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 preparation of pigments of the perylene-3,4,9,10, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of pigments of the perylene-3,4,9,10 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2376025