Title:
PRODUCTION AND USE OF PIGMENT MIXTURE BASED ON PERYLENE TETRACARBOXYLIC DIIMIDE
Document Type and Number:
Japanese Patent JPS6191267
Kind Code:
A
Abstract:
Process for preparing perylenetetracarbimide mix-crystal pigments in the crystal lattice of the alpha -modification of the N,N'-bis-3',5'-dimethylphenylperylenetetracarbimide of the formula (1) comprising essentially symmetrical N,N'-bis-3',5'-dimethylphenylperylenetetracarbimide of the formula (1) and at least one asymmetrically substituted diimide of the formula (2) in which R stands for methyl or ethyl (1) (2) by condensing 1 mole of perylenetetracarboxylic dianhydride with an excess of up to 30 moles of 3,5-dimethylaniline which contains in total 0.5-6 percent by weight of 4-ethoxyaniline, and their use for coloring organic polymers.
Inventors:
ERUNSUTO SHIYUPIICHIYUKA
HERUMUUTO TORESUTERU
HERUMUUTO TORESUTERU
Application Number:
JP21817085A
Publication Date:
May 09, 1986
Filing Date:
October 02, 1985
Export Citation:
Assignee:
HOECHST AG
International Classes:
C08K5/34; C09B5/62; C09B67/22; C09B67/26; (IPC1-7): C09B5/62; C09B67/48
Attorney, Agent or Firm:
Ezaki Mitsuyoshi