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US 5,780,621 AGranted
Aluminum phthalocyanine reactive dyes
AssigneeBayer Aktiengesellschaft
InventorsWolfgang Harms, Karl-Josef Herd, Willi Brust
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Abstract
Phthalocyanines of the formula ##STR1## in which Z is a fiber-reactive radical and the other substituents and indices have the meaning given in the description, have improved use properties.
Claims14
An aluminium phthalocyanine reactive dye which, in the form of the free acid, corresponds to the following structure ##STR36## in which a is a number from 0 to 3,
- b is a number from 0 to 2,
- c is a number from 0.5 to 3,
- Pc is a phthalocyanine radical,
- R.sup.1 and R.sup.2 independently of one another are H, C.sub.1 -C.sub.6 -alkyl, substituted C.sub.1 -C.sub.6 -alkyl, phenyl, substituted phenyl or a fiber-reactive radical with a sulfonyl group, or NR.sup.1 R.sup.2 together is the radical of a saturated heterocyclic ring system,
- B is an N-containing bridge member which is linked to the SO.sub.2 radical via an N atom,
- Z is a fiber-reactive radical,
- X is OH, OR.sup.3, a phthalocyanine radical linked via a bonding member or an anion and
- R.sup.3 is C.sub.1 -C.sub.6 -alkyl, substituted C.sub.1 -C.sub.6 -alkyl, phenyl or substituted phenyl.
5 more elements
Dependencies are inferred from the claim text.