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US 5,912,386 AGranted
Bridged anthraquinones
AssigneeBayer Aktiengesellschaft
InventorsDietmar Kalz, Karl-Heinz Reinhardt, Helmut Blaser
Life of this patent
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Abstract
The present invention relates to compounds of the formula (I) R.sup.1 --NH--B--NH--R.sup.2 (I), wherein R.sup.1 and R.sup.2 independently of one another denote an unsubstituted or substituted radical of the formula ##STR1## and B represents an unsubstituted or substituted cycloalkylene-containing bridge member, which are suitable for bulk dyeing of plastics.
Claims15
A compound of the formula (I)
- R.sup.1 --NH--B--NH--R.sup.2 (I),
- wherein
- R.sup.1 and R.sup.2 independently of one another denote a radical of the formula ##STR44## wherein each said radical is independently unsubstituted or substituted with OH, amino or substituted amino, aryloxy, halogen, alkyl, or alkoxy, and
- B represents an unsubstituted or substituted cycloalkylene-containing bridge member.
1 more element
Dependencies are inferred from the claim text.