Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1995-04-19
1996-11-12
Morris, Patricia L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D24920
Patent
active
055741665
ABSTRACT:
Soluble and thermally stable benzotriazole UV absorbers typified by those of formula I ##STR1## where R.sub.1 is hydrogen or chloro, R.sub.2 is alkyl or --CH.sub.2 CH.sub.2 COOR.sub.4 where R.sub.4 is hydrogen, alkyl or alkyl substituted with hydroxyl, and R.sub.3 is .alpha.-cumyl, provide excellent light stability protection to electro coat, base coat or clear coat finishes. The new soluble, crystalline form of 2-(2-hydroxy-3-.alpha.-cumyl-5-tert-octylphenyl)-2H-benzotriazole is particularly effective.
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Babiarz Joseph E.
Holt Mark S.
Leppard David G.
Ravichandran Ramanathan
von Ahn Volker H.
Ciba-Geigy Corporation
Hall Luther A. R.
Morris Patricia L.
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