Tert-silyl and tert-alkyl phthalocyanine dyestuffs

Abstract

Abstract Unmetallized and metallized phthalocyanine dyestuffs being substituted in the benzene nuclei of the phthalocyanine system by from one to four organically trisubstituted tertiary silyl or alkyl groups are described, which dyestuffs are useful for the coloring of synthetic macromolecular materials of polymerizates and polycondensation products, in particular by dyeing in the mass especially of synthetic polyamide and polyolefine fibers; those of the new dyestuffs containing three or, preferably, four tertiary silyl or alkyl groups per phthalocyanine nucleus being of particularly good solubility in certain organic solvents and also useful, apart from the above purposes, for the dyeing of lacquer raw materials, while those new dyestuffs having fewer tertiary silyl or alkyl groups and especially those having only one tertiary silyl or alkyl group per phthalocyanine nucleus are useful as pigments and for the coloring, in the mass, of polyolefin fibers.

Inventors

• 👤 A Pugin
• 👤 H Hopfe
• 👤 P Gallegra

Bibliographic Details