Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1992-02-05
1994-01-11
Morris, Patricia L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D24920
Patent
active
052783146
ABSTRACT:
2-(2-Hydroxyphenyl)-2H-benzotriazole UV-absorbers substituted at the 5-position of the benzo ring by a thioether group exhibit enhanced absorption in the near visible range (over 350 nm) allowing said compounds to be particularly effective in protecting polymer systems which are prone to degradation caused by actinic irradiation with wavelengths over 350 nm.
REFERENCES:
patent: 3004896 (1961-10-01), Heller et al.
patent: 3189615 (1965-06-01), Heller et al.
patent: 3766205 (1973-10-01), Heller et al.
Holt Mark S.
Ravichandran Ramanathan
Stevenson Tyler A.
von Ahn Volker H.
Winter Roland A. E.
Ciba-Geigy Corporation
Hall Luther A. R.
Morris Patricia L.
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