Document Type and Number:
Japanese Patent JPS4840827
Kind Code:
A
Abstract:
1397958 Perylene 3,4,9,10-tetracarboxylic acid diimide dyes BADISCHE ANILIN- & SODA-FABRIK AG 20 Sept 1972 [21 Sept 1971] 43478/72 Heading C4P [Also in Division C3] The invention comprises dyes of formula where R1 and R12 are C 1 -C 12 alkyl or C 5 -C 8 cycloalkyl; R2 and R21 are H or C 1 -C 12 alkyl; R3 and R31 are H, C 1 -C 3 alkyl, Cl or Br, and R4 and R41 are H, or C 1 -C 3 alkyl and wherein R1 and R11 , R2 and R21 , R3 and R31 and R4 and R41 may be identical or different, and the perylene ring may optionally be substituted with not more than 4 halogen atoms. The dyes may be prepared by condensing perylene-3,4,9, 10-tetracarboxylic acid or its anhydride with an arylamine of formula in the molar ratio 1 : 2. The dyes may be used for colouring plastics materials in fluorescent orange shades.
Application Number:
JP9378872A
Publication Date:
June 15, 1973
Filing Date:
September 20, 1972
Export Citation:
International Classes:
C09B5/62; (IPC1-7): C09B3/18