Thermochromic rylene dyes

Details Thermochromic rylene dyes Thermochromic rylene dyes

2005-05-10

2005-05-10

Klemanski, Helene (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031320, C106S031200, C546S026000, C546S028000, C546S038000, C546S100000, C524S089000, C524S090000

Reexamination Certificate

active

06890377

ABSTRACT:
Rylene dyes of the general formula IwhereR is hydrogen; unsubstituted or substituted C1-C30-alkyl, aryl or hetaryl;R′ is unsubstituted or substituted C2-C30-alkyl or C5-C8-cycloalkyl, or substituted methyl;n is 0 or 1,their preparation and use for coloring high-molecular-weight organic and inorganic materials, andaminorylene-3,4-dicarboximide of the formula IV as their intermediates.

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