| abstract |
A binary pigment composition of compounds of formula (I) and (II), characterized by an average particle size d 50 of 10 to 60 nm, wherein less than 5% by volume of the particles are greater than 70 nm, wherein the mass ratio of compound of formula (I) to compound of formula (II) is 99.5 to 0.5 to 80 to 20, wherein n represents a number from 0 to 4; and X is OH, F, Cl, Br, CN, CF 3 , nitro, C 1 -C 8 -alkyl, C 5 -C 7 -cycloalkyl, C 2 -C 8 -alkenyl, C 1 -C 8 -alkoxy, phenyl or Benzyl is. |