Processes for the preparation of squaraine compositions

Details Processes for the preparation of squaraine compositions Processes for the preparation of squaraine compositions

H - Electricity

01

L

260/509.7, 260/5

H01L 31/08 (2006.01) G03G 5/06 (2006.01)

Patent

CA 1229094

ABSTRACT Disclosed is an improved process for the preparation of squaraine compositions which comprises reacting squaric acid, an aromatic amine, and a composition selected from the group consisting of phenols and phenol squaraines, in the presence of an aliphatic alcohol, and an optional azeotropic substance.

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