| http://www.w3.org/ns/prov#value | - The ??-cyanoacrylate ester to be used as the component (A) is representable by the formula: ##STR1## wherein R is an ester residue, particularly a substituted or unsubstituted, saturated or unsaturated, cyclic or non-cyclic hydrocarbon group such as substituted or unsubstituted alkyl (e.g. methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, pentyl, hexyl, octyl, ethylhexyl, dodecyl,
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