Single-phase mixed crystals of laked monoazo dyes

Details Single-phase mixed crystals of laked monoazo dyes Single-phase mixed crystals of laked monoazo dyes

2005-07-05

2005-07-05

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C106S031780, C106S496000, C106S498000, C349S106000, C430S007000, C430S108230, C524S094000, C534S581000, C534S602000, C534S724000, C534S784000

Reexamination Certificate

active

06913640

ABSTRACT:
Novel improved single-phase mixed crystals of monoazo dyes laked with alkaline earth metal cations and ammonium cations in a molar ratio of about 1:2 having a fine particle size and substantially better fastness properties than similar known products are excellently suitable as tinctorially strong pigments. Also claimed is a process for the preparation of a single-phase mixed crystal pigment of formulawherein E is Mg, Ca or Sr, by crystallisation from an inert hydrophilic liquid in the presence of solvated catiens E++, NR5R6R7R8+, x is a number from 0.33 to 0.62 and y is a number from 0.76 to 1.34, and the concentration of solvated catiens E++at the beginning of the crystallisation is higher than the concentration of solvated cations NR5R8R7R8+.

REFERENCES:
patent: 4594411 (1986-06-01), Henning
patent: 4980458 (1990-12-01), Hari et al.
patent: 4992495 (1991-02-01), Hari et al.
patent: 5047517 (1991-09-01), Deucker
patent: 5457188 (1995-10-01), Zimmermann
patent: 6235100 (2001-05-01), Hays
patent: 2616981 (1977-10-01), None
patent: 0073972 (1983-03-01), None
patent: 0126405 (1984-11-01), None
patent: 0225553 (1987-06-01), None
patent: 0263074 (1988-04-01), None
patent: 0361431 (1990-04-01), None
patent: 0553965 (1993-08-01), None
patent: 00/78872 (2000-12-01), None

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