Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1973-01-22
1976-12-14
Warren, Charles F.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260151, C09B 2920
Patent
active
039975231
ABSTRACT:
Monoazo pigments of the general formula ##STR1## WHEREIN X is hydrogen or halogen, preferably chlorine or bromine, alkyl, alkoxy, trifluoromethyl, phenyl, phenoxy or cyano, Y represents hydrogen or halogen, preferably chlorine or bromine, alkyl, alkoxy, carbomethoxy, phenyl or phenoxy, Z represents hydrogen, chlorine or bromine, alkyl, alkoxy, nitro, cyano, trifluoromethyl, methylsulfonyl, aminocarbonyl, alkylaminocarbonyl, phenylaminocarbonyl, aminosulfonyl, alkylaminosulfonyl, alkanoylamino or aroylamino, A represents a phenyl or naphthalene ring, n represents 1 or 2, m is an integer of from 1 to 3 and Me is an equivalent of a metal cation forming a lake and a process for preparing them by diazotizing aromatic amines of the general formula ##STR2## with coupling components of the general formula ##STR3## AND SUBSEQUENTLY CONVERTING INTO A LAKE WITH METAL SALTS, X,Y,Z,A, n and m having the above meaning. These pigments can be successfully used for dyeing all materials usually dyed with pigments. They are especially suitable for coloring high molecular plastics such as PVC and on account of their excellent resistance to heat, for coloring polyolefins.
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Georgievics et al., Dye Chemistry, Scott, Greenwood & Son; London, 1920, p. 19.
Laubert Gunter
Ribka Joachim
Hoechst Aktiengesellschaft
Warren Charles F.
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