申请人:Blum David
公开号:US20080234480A1
公开(公告)日:2008-09-25
The invention relates to novel triphendioxazine pigments of formula (I)
wherein X represents hydrogen or chlorine, while R
1
represents phenyl substituted by one to five radicals from the group comprising C
1
-C
4
-alkyl, halogen, C
1
-C
4
-alkoxy, acetylamino, aminocarbonyl, methylaminocarbonyl and C
1
-C
4
-alkoxycarbonyl, or phenyl annelated in the 2,3- or 3,4- with a divalent radical of the formula —NH—(CO)
m
—NR
2
—, —CR
2
═CH—CO—NH—, —CR
2
═N—CO—NH—, —CO—NH—CO—NR
2
—, —CO—(NH)
m
—CO— or —O—(CO)
m
—NH— so as to form a five- or six-membered ring, R
2
representing hydrogen, methyl, ethyl or phenyl and m representing 1 or 2.