Compositions: coating or plastic – Coating or plastic compositions – Carbohydrate or derivative containing
Patent
1980-08-04
1982-07-20
Morris, Theodore
Compositions: coating or plastic
Coating or plastic compositions
Carbohydrate or derivative containing
106193P, 260154, 524100, C08L 108, C09B 1700
Patent
active
043404308
ABSTRACT:
The present invention relates to valuable novel azo pigments of the formula ##STR1## wherein A is a benzene residue, X is a SO.sub.3 or CO.sub.2 group, Y is a substituent that does not confer solubility in water, M is a monovalent or bivalent metal atom, and n is 1 or 2. Examples of substituents that do not confer solubility in water are: halogen, e.g. chlorine or bromine, methyl, C.sub.1 -C.sub.4 alkoxy, cyano, alkanoylamino containing 1 to 4 carbon atoms, and especially nitro and trifluoromethyl. In addition to containing the specified substituents, the benzene residue A can contain further substituents, e.g. chlorine atoms or methyl groups. Suitable metals are monovalent metals such as alkali metals, e.g. Na, K or Li, but preferably bivalent metals such as Mg, Ca, Sr, Ba, Mn, Co, Ni, Cu or Zn. However, M can also comprises mixtures of such metals. The novel pigments produce in plastics materials yellow to red colorations of excellent fastness to light, migration and atmospheric influences and also excellent heat resistance.
REFERENCES:
CA, 55, 2702e (1961).
Tanaka et al., Study of Nucleic Acid Antagists, Chem. & Phar. Bulletin, vol. 7, No. 1, Feb. 59.
Timmis et al., Structure-Activity Relations in Two Series of Anti-Folic Acids, J. Phar. Pharmacol., 9, 46 (1957), pp. 46-67.
Ciba-Geigy Corporation
Hall Luther A. R.
Morris Theodore
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