Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfur halides
Reexamination Certificate
2008-10-16
2011-10-04
Zucker, Paul A (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfur halides
Reexamination Certificate
active
08030516
ABSTRACT:
Novel methods for preparing perfluoroalkanedi(sulfonyl chloride) are disclosed as are uses for these compounds. In one aspect, a method comprising reacting dibromoperfluoroalkane with Na2S2O4followed by treating with chlorine, an organic compound, and then chlorine to form perfluoroalkanedi(sulfonyl chloride) is provided. Novel perfluoroalkanedi(sulfonyl bromide) compounds are also disclosed.
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Saito Norimichi
Umemoto Teruo
Swanson & Bratschun L.L.C.
UBE Industries Ltd.
Zucker Paul A
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