Appeal No. 1997-1992 Page 3
Application No. 08/115,388
wherei
n R is
C -C
1 12
alkyl
or C -
6
C10
aryl;
R is1
C -C alkyl, C -C aryl, C -C aralkyl, or C -C alkaryl; and1 12 6 10 7 11 7 16
(b) at least one phenothiazine having the structure:
2 3 4
wherein R is hydrogen or C -C alkyl; and R and R are each
1 12
independently selected from the group consisting of hydrogen,
C -C aryl, C -C aralkyl, C -C alkaryl and C -C alkyl;6 10 7 11 7 16 1 12
(c) optionally a hydroquinone or hydroquinone
monomethyl ether; and
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