Invention Grant
US5869625A Colorant blends containing a salt-forming azo pigment and a pyrrolopyrrole pigment 失效
含有成盐性偶氮颜料和吡咯并吡咯颜料的着色剂混合物

Colorant blends containing a salt-forming azo pigment and a
pyrrolopyrrole pigment
Abstract:
The present invention relates to colorant blends comprising (a) an azo component, which is a salt of a salt-forming azo pigment of the formulaA--N.dbd.N--B,wherein A is the residue of a diazo component and B is the residue of a coupling component; and (b) a second component, which is an opaque 1,4-diketo-3,6-diaryl-pyrrolo�3,4-c!pyrrole pigment. The colorant blends are especially useful in coating compositions, such as paints.
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