Cationic hydrazone derivatives, processes for their preparation

Details Cationic hydrazone derivatives, processes for their preparation Cationic hydrazone derivatives, processes for their preparation

1982-09-22

1984-03-06

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

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20415918, 252589, 430512, 430931, 260102, 260107, 524236, 524255, 524715, 524722, G03C 184, C08K 516, G02B 520, G02C 710

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044354894

ABSTRACT:
Hydrazone derivatives of the formula ##STR1## in which A.sub.1 is an aromatic radical, B.sub.1 is hydrogen, alkyl, cycloalkyl, aralkyl or aryl, R.sub.1, R.sub.2 and R.sub.3 independently of one another are alkyl, cycloalkyl, aralkyl or polyoxyalkylene, Z.sub.1 is arylene, X.sup..crclbar. is an anion and m is 0, 1, 2 or 3.
The hydrazone derivatives are suitable as UV absorbers, especially in polymer coatings.

REFERENCES:
patent: 2818367 (1957-12-01), Jaworski et al.
patent: 4150987 (1979-04-01), Anderson et al.

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