Patent ID: 7279514

Claim:
A high-molecular-weight polymeric material comprising at least one diketopyrrolopyrrole pigment (DPP pigment), which pigment has a particle size of less than or equal to 0.1 μm, has a transmission at 570-580 nm of less than 5% and a transmission at 615 nm of at least 80%, and consists of compounds of formula wherein R 1 is hydrogen, chlorine, methyl, methoxy, CF 3 or CN, R 2 is hydrogen, chlorine, methyl, methoxy, CF 3 or CN, A is hydrogen, chlorine, methyl, methoxy, CF 3 , CN, unsubstituted or substituted phenyl or a radical of formula wherein R 5 is hydrogen, chlorine, methyl, methoxy, nitro, CF 3 or CN and R 6 is hydrogen, chlorine, methyl, methoxy, nitro, CF 3 or CN, or R 5 and R 6 together with the phenyl ring to which they are bonded form an aryl or a heteroaryl ring and A 1 is a radical of formula wherein R 5 is hydrogen, chlorine, methyl, methoxy, nitro, CF 3 or CN and R 6 is hydrogen, chlorine, methyl, methoxy, nitro, CF 3 or CN, or R 5 and R 6 together with the phenyl ring to which they are bonded form an aryl or a heteroaryl ring.