发明授权
US5889162A Strong green-shade yellow disazo pigment 有权
强绿色黄色双双色素

Strong green-shade yellow disazo pigment
摘要:
In one embodiment, the present invention relates to a green shade yellow pigment composition comprising a compound having the formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, halogen, an alkyl group having 1 to about 4 carbon atoms, an alkoxy group having 1 to about 4 carbon atoms, an alkoxycarbonyl group having 1 to about 6 carbon atoms, nitro, cyano, phenoxy or trifluoromethyl. The green shade yellow pigment composition is suitable for use in plastics, paints and inks.
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