| http://www.w3.org/ns/prov#value | - The filler used in the present invention may include but is not limited to carbonate types such as magnesium and calcium carbonate, and ground limestone, and silicate types such as magnesium and aluminum silicate, clay, alumina, talc, as well as titanium oxide, mono-, di- and tricalcium phosphate, and cellulose polymers such as ethyl, and methyl cellulose and wood and the like.
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