C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
C09B 3/18 (2006.01) C08K 5/3437 (2006.01) C09B 5/62 (2006.01) C09D 11/00 (2006.01) C09K 9/02 (2006.01) C09K 11/06 (2006.01) G03G 5/06 (2006.01) G03G 9/09 (2006.01)
Patent
CA 2162448
Di-, tri- and tetrachromonophonic perylene-3,4:9,10-tetracarboxylic acid imides of the formula I Image (I) m in which A is, for example, 1,4-phenylene, R is 1-hexylheptyl and mis2, are readily accessible by reaution of a perylene-3,4:9,10-tetracarboxylic acid monoanhydride monoimide with 1,4-diaminobenzene-bisformamide. The preparation process and also a specific process for the preparation of monochronic perylene-3,4:9,10-tetracarboxylic bisimides are also claimed. These processes are particularly suitable for reaction of highly electron-rich aromatic amines, which cannot be reacted under conventional condensation conditions. The compounds according to the invention are suitable, for example, as colouring agents for melt coloration of high molecular weight organic material, for use in security printing, as fluorescence dyes for machine-readable markings, as laser dyes and for the production of printing toners, colour filters, organic photoreceptors, electroluminescence and photoluminescence elements or solar collectors.
Ciba Specialty Chemicals Holding Inc.
Fetherstonhaugh & Co.
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