Metal phthalocyanine intermediates for the preparation of polyme

Details Metal phthalocyanine intermediates for the preparation of polyme Metal phthalocyanine intermediates for the preparation of polyme

1983-09-15

1985-06-11

Bond, Robert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602459, 528327, C07D48722

Patent

active

045227551

ABSTRACT:
Metal 4, 4', 4", 4"'-tetracarboxylic phthalocyanines (MPTC) are prepared by reaction of trimellitic anhydride, a salt or hydroxide of the desired metal (or the metal in powdered form), urea and a catalyst. A purer form of MPTC is prepared than heretofore. These tetracarboxylic acids are then polymerized by heat to sheet polymers which have superior heat and oxidation resistance. The metal is preferably a divalent metal having an atomic radius close to 1.35.ANG..

REFERENCES:
Moser et al., "Phthalocyanine Compounds", (Reinhold), (1963), pp. 104-141.

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