METHOD OF PREPARING COMPLEX-AZO PIGMENT AND COMPLEX-AZO PIGMENT THEREOF
申请人:OHTA Masafumi
公开号:US20100010204A1
公开(公告)日:2010-01-14
A method of preparing a complex-azo pigment having plural pigment components including at least an azo pigment represented by the following formula (a)
A(H)n (a)
Pigments, both limited and unlimited by the process of making.
AZO COMPOUND AND METHOD OF PREPARING THE AZO COMPOUND
申请人:Ohta Masafumi
公开号:US20090005546A1
公开(公告)日:2009-01-01
An azo compound having the following formula (I):
A(E)n (I)
wherein A represents a residue of an azo compound, bonded with n pieces of E group through one or more heteroatom being N or O and forming a part of the residue A; E independently represents a hydrogen atom or —C(═O)—O—R1 wherein R1 represents a substituted or an unsubstituted alkyl group having 4 to 10 carbon atoms, an alkenyl group, an alkynyl group, a cycloalkyl group, a cycloalkenyl group or an aralkyl group; and n represents an integer of from 1 to 10.