The present invention relates to surface-treated pigments of formula (I), wherein Ar
1
and Ar
2
are each independently of the other a phenyl or naphthalene group, n1 and n2 denote a value from 0 to 0.15, the sum of n1 and n2 being a value from 0.01 to 0.15, n is an integer 1 or 2, X
1
is a branched or unbranched alkyl radical or alkenyl radical having from 1 to 25 carbon atoms, it being possible for the alkyl radical to be interrupted by one or more S or O atoms, and is preferably a group —Y—(CH
2
)
m
—R
1
, wherein Y is a group —CH
2
—, —O—, —S—, —C(O)O—, —C(O)—, —C(O)—NH—, —SO
2
NH— or —SO
2
— and R
1
is a hydrogen atom or a group —NR
2
R
3
, wherein R
2
and R
3
are each independently of the other a hydrogen atom or a C
1-6
alkyl radical, and m is an integer from 1 to 24, especially from 12 to 18, X
2
is a group —COOH, —SO
3
H or —P(O)OX
3
OX
4
, wherein X
3
and X
4
are each independently of the other a hydrogen atom or a C
1-6
alkyl radical, especially a hydrogen atom, and pigment denotes an organic pigment or a mixture of organic pigments, including solid solutions and crystalline solid solutions. Compared with untreated pigments, the surface-treated pigments exhibit better rheological properties and/or no warping in the pigmenting of partially crystalline plastics.
1
本发明涉及式(I)的表面处理
颜料,其中 Ar
1
和 Ar
2
分别独立地为苯基或
萘基,n1 和 n2 的值为 0 至 0.15,n1 和 n2 的值之和为 0.01 至 0.15,n 为整数 1 或 2,X
1
是具有 1 至 25 个碳原子的支链或未支链烷基或烯基,烷基可能被一个或多个 S 或 O 原子打断,最好是基团 -Y-(
CH2)
2
)
m
-R
1
其中 Y 是基团 -CH
2
-、-o-、-s-、-c(o)o-、-c(o)-、-c(o)-nh-、-so
2
NH- 或 -SO
2
- 和 R
1
是氢原子或基团 -NR
2
R
3
其中 R
2
和 R
3
各自独立地为氢原子或 C
1-6
烷基,m 是 1 至 24,特别是 12 至 18 的整数,X
2
是基团 -COOH, -SO
3
H或-P(O)OX
3
OX
4
其中 X
3
和 X
4
各自独立地为氢原子或 C
1-6
烷基,尤其是氢原子,
颜料指
有机颜料或
有机颜料混合物,包括固溶体和结晶固溶体。与未经处理的
颜料相比,表面处理过的
颜料在部分结晶塑料的
颜料化过程中表现出更好的流变性能和/或不翘曲。
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