Claims
- 1. A perylenetetracarbimide mix-crystal pigment based on the crystal lattice of the .alpha.-modification of N,N'-bis-3',5'-dimethylphenylperylenetetracarbimide of the formula (1) comprising 99-70 mole percent of the symmetrical diimide of the formula (1) and correspondingly 1-30 mole percent of the asymmetrically substituted diimide of the formula (2) ##STR6##
- 2. The perylenetetracarbimide mix-crystal pigment as claimed in claim 1 consisting essentially of 95-85 mole percent of the diimide of the formula (1) and correspondingly 5 to 15 mole percent of the diimide of the formula (2).
Priority Claims (1)
Number |
Date |
Country |
Kind |
3436208 |
Oct 1984 |
DEX |
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Parent Case Info
This application is a continuation of application Ser. No. 68,746, filed Jun. 29, 1987, abandoned which is a continuation of Ser. No. 782,360, filed Oct. 1, 1985, abandoned.
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4262851 |
Graser et al. |
Apr 1981 |
|
4769460 |
Spietschka et al. |
Sep 1988 |
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912757 |
Oct 1972 |
CAX |
122442 |
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EPX |
1094897 |
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DEX |
1807729 |
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Continuations (2)
|
Number |
Date |
Country |
Parent |
68746 |
Jun 1987 |
|
Parent |
782360 |
Oct 1985 |
|