Appeal No. 1997-2193
Application 07/986,648
The appealed subject matter is directed to a genus of
compounds which are fluoroaliphatic sulfonamides. According
to appellants the compounds are useful as anionic surfactants.
Claims 1 and 2 are believed to be adequately
representative of the appealed subject matter and are
reproduced below for a more facile understanding of
appellant's invention.
Claim 1. A fluoroaliphatic radical-containing sulfonamido
compound which comprises a fluoroaliphatic radical-
containing sulfonamido group and an ethylenecarbonyl
group whose beta ethylene carbon atom is bonded to a
sulfur or nitrogen atom which is bonded to a linking
group bonded to the nitrogen atom of said sulfonamido
group, and the carbonyl carbon atom of said carbonyl is
bonded to an anionic hydrophilic polar group comprising
at least one carbon, nitrogen, oxygen, or sulfur atom.
Claim 2. The
fluoroaliphatic radical-containing sulfonamido compound
of claim 1 wherein said compound has the formula
R SO N(R)WACH(R')CH(R'')C(O)-Yf 2 2
where R is a fluoroaliphatic radical; A is S or NR''';
f
W is siloxylene, silylene, alkylene, arylene, or
combinations thereof; R, R', R'', R''' are independently
hydrogen, lower alkyl, aryl, or combinations thereof, and
can contain functional groups, or R and R''' together
"W", the universally accepted symbol for tungsten, and2
"Y", the universally accepted symbol for yttrium, do not have
their universally accepted meaning in appellants' claims.
2
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