| http://www.w3.org/ns/prov#value | - In particular, it is preferable that the inorganic fine particles such as silica, titanium oxide, alumina and zinc oxide are treated by a known method with a conventionally used hydrophobisizing agent, such as a silane coupling agent, a titanate coupling agent, silicone oil and silicone vanish, or with a treatment agent, such as a fluorine silane coupling agent or fluorine silicone oil, a coupling
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