Easily flushable transparent, strong diarylide yellow pigment co

Compositions: coating or plastic – Coating or plastic compositions – Metal-depositing composition or substrate-sensitizing...

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106288Q, 106308Q, 106308F, 106308M, 534561, C09D 1108

Patent

active

046800573

ABSTRACT:
Diarylide yellow pigment compositions which are sulfonated with 2,2'disulfobenzidine and/or p-sulfo-acetoacetanilide are rendered hydrophobic by treatment with specific quaternary ammonium salts. The pigment compositions are easily flushed into flushed bases. When incorporated into printing inks, the pigments demonstrate improved color strength and transparency.

REFERENCES:
patent: 2261626 (1941-11-01), Lang
patent: 3120508 (1964-02-01), Braun et al.
patent: 3775148 (1973-11-01), Bradley
patent: 3776749 (1973-12-01), McKay et al.
patent: 3991044 (1976-11-01), Conley
patent: 4341701 (1982-07-01), Pechey et al.
patent: 4469515 (1984-09-01), Pechey et al.
patent: 4474609 (1984-11-01), Ehl et al.
"Surface Treatment of Organic Pigments for Printing Ink Applications", by B. G. Hays, American Ink Maker, vol. 62, No. 6 (Jun. 1984), pp. 28-50.
"Pigment Flushing", by T. A. Langstroth, Pigment Handbook, vol. 3, pp. 447-455.

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