Process for producing azo pigments

Details Process for producing azo pigments Process for producing azo pigments

1986-02-10

1987-04-07

Lieberman, Paul

Compositions: coating or plastic

Materials or ingredients

Miscellaneous

106288Q, C04B 1100

Patent

active

046558446

ABSTRACT:
A process for producing an azo pigment, which comprises coupling an aromatic diazonium compound with 3-hydroxy-2-naphthoic acid and at least one bis-naphthylmethane, and optionally, making the resulting pigment.

REFERENCES:
patent: 4190578 (1980-02-01), Hamilton
patent: 4217273 (1980-08-01), Von
patent: 4474609 (1984-10-01), Ehl et al.
patent: 4491481 (1985-01-01), Robertson et al.
patent: 4497735 (1985-02-01), Olsen et al.
patent: 4530724 (1985-07-01), Ueno et al.
patent: 4535151 (1985-08-01), Fournier

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