CRYSTALLINE SILICA PARTICLE MATERIAL AND METHOD FOR MANUFACTURING SAME, SLURRY COMPOSITION CONTAINING CRYSTALLINE SILICA PARTICLE MATERIAL, AND RESIN COMPOSITION CONTAINING CRYSTALLINE SILICA PARTICLE MATERIAL

摘要

The present invention addresses the problem of providing a crystalline silica particle material having a different composition than the prior art, a method for manufacturing the same, and a crystalline-silica-particle-material-containing resin composition containing the crystalline silica particle material. The present invention contains at least 1 ppm of zinc, has a volume-average particle diameter of 200 µm or less, and has crystalline silica as the main component thereof. Despite containing zinc, this crystalline silica particle material as a whole is capable of exhibiting the properties of silica, and can be used in applications of a conventional particle material comprising crystalline silica. Zinc contained at the surface may also be utilized to impart catalytic activity.