Spherical silica powder and method for producing spherical silica powder
AssigneesAGC Inc., Agc Si-Tech Co., Ltd.
InventorsHiromichi KAMO, Masaki INOUE, Ryuma ICHIKAWA
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Abstract
A spherical silica powder, having a ratio (B/A) of 0.5 to 1.5, the ratio (B/A) being a ratio of a maximum IR peak intensity B, which is derived from an isolated silanol group on a surface of the spherical silica powder, at more than 3700 cm−1 and 3800 cm−1 or less to a maximum IR peak intensity A, which is derived from an internal silanol group of the spherical silica powder, at 3600 cm1 to 3700 cm−1.
Claims11
A spherical silica powder, having a ratio (B/A) of 0.5 to 1.5, the ratio (B/A) being a ratio of a maximum IR peak intensity B, which is derived from an isolated silanol group on a surface of the spherical silica powder, at more than 3700 cm−1 and 3800 cm−1 or less to a maximum IR peak intensity A, which is derived from an internal silanol group of the spherical silica powder, at 3600 cm−1 to 3700 cm−1.
Dependencies are inferred from the claim text.