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Title:
SURFACE-TREATED SOL-GEL SILICA AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/044929
Kind Code:
A1
Abstract:
This surface-treated sol-gel silica is characterized by comprising sol-gel silica having an average particle diameter of 0.05-2.0 μm by laser diffraction scattering, and a surface treatment agent on the sol-gel silica surface, the particle content for particles having a particle diameter of 5 μm or greater being 10 ppm or less on a numerical basis in the grain size distribution obtained by a Coulter counter in a dispersion obtained by dispersing a quantity of 5% by mass in ethanol by ultrasonic waves at an output of 40 W and an irradiation time of 10 minutes.

Inventors:
FUJIOKA Hiromasa (1-1 Mikage-ch, Shunan-shi Yamaguchi 48, 〒7458648, JP)
TANAKA Osamu (1-1 Mikage-ch, Shunan-shi Yamaguchi 48, 〒7458648, JP)
TAIRA Hiroaki (1-1 Mikage-ch, Shunan-shi Yamaguchi 48, 〒7458648, JP)
MIKAMI Naoki (1-1 Mikage-ch, Shunan-shi Yamaguchi 48, 〒7458648, JP)
OOTANI Toshiaki (1-1 Mikage-ch, Shunan-shi Yamaguchi 48, 〒7458648, JP)
Application Number:
JP2018/032023
Publication Date:
March 07, 2019
Filing Date:
August 29, 2018
Export Citation:
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Assignee:
TOKUYAMA CORPORATION (1-1 Mikage-cho, Shunan-shi Yamaguchi, 48, 〒7458648, JP)
International Classes:
C01B33/18; C08K3/36; C08K9/04; C08L101/00; C09C1/28; C09C3/08; C09C3/10; H01L23/29; H01L23/31
Domestic Patent References:
WO2015016359A12015-02-05
WO2018096876A12018-05-31
Foreign References:
JP2012006823A2012-01-12
JP2016190770A2016-11-10
JP2012171813A2012-09-10
Attorney, Agent or Firm:
MAEDA & PARTNERS (Shin-Daibiru Bldg. 23F, 2-1 Dojimahama 1-chome, Kita-ku, Osaka-sh, Osaka 04, 〒5300004, JP)
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