Tetra-sulfo iron-phthalocyanine and related methods

Details Tetra-sulfo iron-phthalocyanine and related methods Tetra-sulfo iron-phthalocyanine and related methods

C - Chemistry, Metallurgy

09

B

C09B 47/06 (2006.01) C10G 19/00 (2006.01) C10G 29/08 (2006.01)

Patent

CA 2673073

The present invention relates to making tetra-sulfo iron-phthalocyanine by reacting sulfonated reactant(s) in the presence a boron-containing promoter. The present invention also relates to making tetra-sulfo iron-phthalocyanine more tolerant to oxygen by combining the tetra-sulfo iron-phthalocyanine with a stabilizing amount of a complexing agent (e.g., a stabilizing amine) and/or contacting the tetra-sulfo iron-phthalocyanine with steam.

La présente invention concerne la fabrication de phthalocyanine de fer tétra-sulfo par la réaction d'un ou de plusieurs réactifs sulfonés en présence d'un promoteur contenant du bore. La présente invention concerne également la fabrication de phthalocyanine de fer tétra-sulfo à tolérance à l'oxygène accrue par la combinaison de la phthalocyanine de fer tétra-sulfo avec une quantité stabilisante d'un agent complexant (par exemple une amine stabilisante) et/ou par la mise en contact de la phthalocyanine de fer tétra-sulfo avec de la vapeur d'eau.

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