Use of pyridoquinolone derivatives as pigments

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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524 89, 544215, 544405, 546 81, C08K 545

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active

047300140

ABSTRACT:
Process for mass-coloring high molecular weight organic material, which comprises using a compound of the formula I ##STR1## in which one of R.sub.1 and R.sub.2 and one of R.sub.3 and R.sub.4 are independently of each other hydrogen, C.sub.1 -C.sub.12 -alkyl or benzyl and the other two radicals are independently of each other unsubstituted phenyl, phenyl which is substituted by halogen, trifluoromethyl, cyano, C.sub.1 -C.sub.12 -alkyl, phenyl or by the groups --OR.sub.5, --SR.sub.5, --COR.sub.6 or --SO.sub.2 R.sub.6, or a 5- or 6-membered aromatic heterocyclic ring containing one or more identical or different hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur without or with one or two fused-on benzene rings, R.sub.5 is hydrogen or C.sub.1 -C.sub.12 -alkyl, R.sub.6 is C.sub.1 -C.sub.12 -alkyl, and X and Y are independently of each other hydrogen, halogen or cyano.
The invention also relates to new pyridoquinolones of the formula I.
The colorings obtained with (I) have a yellow hue, a very high tinctorial strength which does not significantly change even in the event of prolonged processing and residence times, high saturation, high dispersibility, good overpainting, migration, wet, rub, light and weathering capability, good IR reflectance behavior and in particular excellent heat stability.

REFERENCES:
patent: 3978062 (1976-08-01), Altiparmakian et al.
patent: 4639477 (1987-06-01), Cseh et al.
Sillion, B., et al., Journal of Polymer Science, Part C, No. 16, pp. 4653-4667 (1969).
Chemical Abstracts, 77:75201q (1972) [Ger. Offen. 2,149,692, Waring, 4/6/72].

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