Pigment compositions

Details Pigment compositions Pigment compositions

1994-12-27

1996-09-17

Bell, Mark L.

Compositions: coating or plastic

Materials or ingredients

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

106498, C08K 500

Patent

active

055564569

ABSTRACT:
A pigment composition which comprises an organic pigment and a dioxazine pigment derivative represented by the following formula (I); ##STR1## wherein R.sub.1 and R.sub.2 each independently represents a substituted or unsubstituted and saturated or unsaturated aliphatic hydrocarbon group or aromatic hydrocarbon group, or R.sub.1 and R.sub.2 form a heterocyclic ring; L is an integer of 1-6; m is 0.5-3; and n is 0.5-3.5 provided that total of m and n is 1-5 or a salt thereof; and
the pigment composition can be used with excellent pigment characteristics for various uses, and particularly, when they are used for paints or printing inks in the form of non-aqueous dispersion system, the dispersion system has lower dispersion viscosity and exhibits good flowability and there occurs no color segregation in the dispersion system and it has high coloring power and gives good prints or coats having good gloss and high transparency.

REFERENCES:
patent: 4310359 (1982-01-01), Ehashi et al.
patent: 4317682 (1982-03-01), Katsura et al.
patent: 4986852 (1991-01-01), Dietz et al.
patent: 5271759 (1993-12-01), Wooden et al.
patent: 5275653 (1994-01-01), Dietz et al.
patent: 5318627 (1994-06-01), Dietz et al.
patent: 5324354 (1994-06-01), Jesse et al.

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