Novel compositions based on indanthrone blue pigments
Abstract
Abstract A composition comprising (a) an indanthrone blue pigment of formula I ##STR1## and (b) a sulfonated indanthrone blue derivative of formula II ##STR2## wherein X.sup.⊕ is H.sup.⊕ or a group of the formula M n ⊕ /n or N.sup.⊕ (R)(R 1 )(R 2 )(R 3 ), M is a monovalent, divalent or trivalent metal cation, n is 1, 2 or 3, each of R, R 1 , R 2 and R 3 is independently hydrogen, C 1 -C 18 -alkyl, C 5 -C 6 cycloalkyl, phenyl or phenyl which is substituted by C 1 -C 18 alkyl, or R 2 and R 3 , together with the linking nitrogen atom, are a pyrrolidine, imidazoline, piperidine, piperazine or morpholine radical, or R 1 , R 2 and R 3 , together with the linking nitrogen atom, are a pyrrole, pyridine, picoline, pyrazine, quinoline or isoquinoline radical, and m is a value from 0.2 to 3. When used in varnishes, pigment mixtures of this kind are distinguished in particular by increased color strength, improved rheology and high gloss.
Inventors
- 👤 Fridolin Babler
- 👤 Edward E. Jaffe
- 👤 Bernhard Medinger
Bibliographic Details
Claims Analysis
Total Claims: 6References Cited (Backward Citations)
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