Process for the preparation of high purity phthalocyanine pigmen

Details Process for the preparation of high purity phthalocyanine pigmen Process for the preparation of high purity phthalocyanine pigmen

1983-07-27

1985-04-02

Bond, Robert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

8661, C07D48722, C09B 4704

Patent

active

045086508

ABSTRACT:
A process for the preparation of pigments of high purity which comprises reacting in the presence of an organic solvent an appropriate impure pigment with an organic acid of the formula R-X, or comprises reacting an appropriate impure pigment with an organic acid of the formula R-X, and subsequently adding an organic solvent to the resulting organic mixture, adding a precipitating agent to the resulting solution mixture, followed by separation of the desired pure pigment from the reaction mixture, wherein R is an alkyl group, containing from about 4 carbon atoms to about 22 carbon atoms, or an aryl group containing from about 6 carbon atoms to about 24 carbon atoms, and X is a group capable of yielding anions.

REFERENCES:
patent: 2375120 (1945-05-01), Loukomsky et al.
patent: 2378283 (1943-02-01), Bucher
patent: 2840568 (1958-06-01), Brouillard et al.
patent: 2859219 (1958-11-01), Randall et al.
patent: 2914537 (1959-11-01), Randall et al.
patent: 2964531 (1960-12-01), Kirby et al.
patent: 3657272 (1972-04-01), Brach et al.
patent: 3713857 (1973-01-01), Shapiro
patent: 3932180 (1976-01-01), Griffiths et al.
patent: 3963743 (1976-06-01), Stepp
patent: 4031109 (1977-06-01), Griffiths et al.
patent: 4239549 (1980-12-01), Fabian et al.

Affiliated with

Also associated with

Rating

Process for the preparation of high purity phthalocyanine pigmen 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 high purity phthalocyanine pigmen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of high purity phthalocyanine pigmen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1090239