Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Reexamination Certificate
2007-02-06
2007-02-06
Habte, Kahsay (Department: 1624)
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
C544S073000, C514S230500
Reexamination Certificate
active
10486134
ABSTRACT:
The present invention relates to novel ultraviolet light absorbers of the benzoxazinone, oxanilide, benzylidene malonate, quinazoline and benzotriazole classes. The invention also relates to polymer and photographic compositions stabilized against the deleterious effects of light induced degradation which comprise the novel ultraviolet light absorbers.
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Babiarz Joseph Edmund
Debellis Anthony David
Detlefsen Robert Edward
Judd Deborah
Naughton Andrew Brian
Ciba Specialty Chemicals Corporation
Habte Kahsay
Stevenson Tyler A.
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