| http://www.w3.org/ns/prov#value | - However, those found particularly well suited to be adapted for use in the present invention have the following characteristics: (1) They can be polymerized to a thermosetting state by a free radical reaction initiated by catalysts; and (2) the density of the cured resin is substantially higher than the liquid resin, i.e., the resin shrinks during curing.
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