| http://www.w3.org/ns/prov#value | - In an embodiment, the at least one filler has a melting point at least greater than 170??? C., for example, greater than 200??? C. In an embodiment, the at least one filler may have an apparent diameter ranging from 0.01 ??m to 150 ??m, such as from 0.5 ??m to 120 ??m, for example from 1 ??m to 80 ??m.
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