Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Reexamination Certificate
2006-07-11
2006-07-11
Powers, Fiona T. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
C534S843000, C548S260000
Reexamination Certificate
active
07074906
ABSTRACT:
Provided is a novel one-pot, organic solvent-free process for the preparation of 2-(2-nitrophenylazo) substituted phenols. The 2-(2-nitrophenylazo) substituted phenols are precursors for hydroxyphenylbenzotriazole UV absorbers.
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Judd Deborah
Pastor Stephen Daniel
Suhadolnik Joseph
Wood Mervin Gale
Ciba Specialty Chemicals Corporation
Powers Fiona T.
Stevenson Tyler A.
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