Pigment preparation with perylene derivatives as dispersants
First Claim
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1. Pigment preparations comprising(a) at least one organic pigment;
- (b) at least one perylene derivative of the general formula I ##STR5## where A is a bivalent radical --O--, --CH2 -- or --NR1 -- wherein R1 is;
hydrogen;
C1 -C22 -alkyl;
C5 --C8 -cycloalkyl;
aryl which may be monosubstituted or poly-substituted by halogen, C1 -C4 -alkyl, C1 -C4 -alkoxy and/or phenylazo;
B1 and B2 are independently of each other a chemical bond or a bivalent radical --O--, --CH2 --, --NR2 --, --S--, --CO--, --SO2 -- or --SO2 --NH-- wherein R2 is hydrogen or C1 -C6 -alkyl;
L1 and L2 are independently of each other a chemical bond, phenylene or C1 -C8 -alkylene;
X is --SO3.sup.⊖
Ka.sup.⊕
wherein Ka.sup.⊕
is;
H.sup.⊕
or the equivalent of a metal cation;
an ammonium cation .sup.⊕
N(R3)4 wherein the radicals R3, which can be identical or different, have the following meanings;
hydrogen;
C1 -C30 -alkyl or C3 -C30 -alkenyl wherein the carbon chain may in each case be interrupted by one or more groups --O--, --S--or --NR2 -- and which may each be substituted by C1 -C6 -alkoxy, amino, hydroxyl and/or carboxyl, and wherein two of the alkyl or alkenyl radicals R3 may also be joined together to form a 5- to 7-membered ring which contains the nitrogen atom with or without further hereto atoms;
C5 -C8 -cycloalkyl or phenyl which may each be substituted by C1 -C6 -alkyl, C1 -C6 -alkoxy, amino, halogen, hydroxyl and/or carboxyl, and wherein the carbon skeleton of the cycloalkyl radicals R3 may also be interrupted by one or more groups --O--, --S--or --NR2 --;
Y is --CO2 Ka.sup.⊕
;
Z is chlorine or bromine;
m is from 0 to 4, the m>
1 radicals --B1 L1 X being identical or different;
n is 0 or 1, the sum (m+n) being from 1 to 4; and
p is from 0 to 4, the p>
1 radicals Z being identical or different;
as dispersant; and
(c) optionally, one or more additives to improve pigment wetting or dispersion or as a plasticizer or as a film former.
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Accused Products
Abstract
Pigment preparations contain
(a) at least one organic pigment;
(b) at least one perylene derivative of the general formula I ##STR1## where A is --O--, --CH2 -- or --NR1 --;
B1 and B2 are independently of each other a chemical bond, --O--, --CH2 --, --NR2 --, --S--, --CO--, --SO2 -- or --SO2 --NH--;
L1 and L2 are independently of each other a chemical bond, phenylene or C1 -C8 -alkylene;
X is --SO3.sup.⊖ Ka.sup.⊕ ;
Y is --CO2 Ka.sup.⊕ ;
Z is chlorine or bromine;
m is from 0 to 4;
n is 0 or 1 and (m+n) is from 1 to 4; and
p is from 0 to 4;
as dispersant;
(c) if desired further customary pigment preparation additives.
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Citations
9 Claims
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1. Pigment preparations comprising
(a) at least one organic pigment; -
(b) at least one perylene derivative of the general formula I ##STR5## where A is a bivalent radical --O--, --CH2 -- or --NR1 -- wherein R1 is; hydrogen; C1 -C22 -alkyl; C5 --C8 -cycloalkyl; aryl which may be monosubstituted or poly-substituted by halogen, C1 -C4 -alkyl, C1 -C4 -alkoxy and/or phenylazo; B1 and B2 are independently of each other a chemical bond or a bivalent radical --O--, --CH2 --, --NR2 --, --S--, --CO--, --SO2 -- or --SO2 --NH-- wherein R2 is hydrogen or C1 -C6 -alkyl; L1 and L2 are independently of each other a chemical bond, phenylene or C1 -C8 -alkylene; X is --SO3.sup.⊖
Ka.sup.⊕
wherein Ka.sup.⊕
is;H.sup.⊕
or the equivalent of a metal cation;
an ammonium cation .sup.⊕
N(R3)4 wherein the radicals R3, which can be identical or different, have the following meanings;
hydrogen;
C1 -C30 -alkyl or C3 -C30 -alkenyl wherein the carbon chain may in each case be interrupted by one or more groups --O--, --S--or --NR2 -- and which may each be substituted by C1 -C6 -alkoxy, amino, hydroxyl and/or carboxyl, and wherein two of the alkyl or alkenyl radicals R3 may also be joined together to form a 5- to 7-membered ring which contains the nitrogen atom with or without further hereto atoms;C5 -C8 -cycloalkyl or phenyl which may each be substituted by C1 -C6 -alkyl, C1 -C6 -alkoxy, amino, halogen, hydroxyl and/or carboxyl, and wherein the carbon skeleton of the cycloalkyl radicals R3 may also be interrupted by one or more groups --O--, --S--or --NR2 --; Y is --CO2 Ka.sup.⊕
;Z is chlorine or bromine; m is from 0 to 4, the m>
1 radicals --B1 L1 X being identical or different;n is 0 or 1, the sum (m+n) being from 1 to 4; and p is from 0 to 4, the p>
1 radicals Z being identical or different;as dispersant; and (c) optionally, one or more additives to improve pigment wetting or dispersion or as a plasticizer or as a film former. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification