Appeal No. 1997-3738
Application No. 08/469,741
substituted benzoyl caprolactam (BCL) as a bleach activator or
precursor. According to appellants' specification, the
peroxygen compound and the bleach activator react in situ to
form the corresponding peroxycarboxylic acid, i.e., a
substituted peroxybenzoic acid.
Claim 4 is representative:
4. A laundry bleaching system comprising:
i) at least
about 0.1% by weight of
a peroxygen
bleaching compound; and
ii) at least
about 0.1% by weight of
a substituted
benzoyl caprolactam bleach activator having the formula:
whe rein R ,1
2 3 4
R , R , R and
R are members selected from the5 group consisting of H,
halogen, NO , alkyl, alkoxy, alkoxyaryl, alkaryl,
2
alkaryloxy, and substituents having the structure:
2
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