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.
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Inventors:
FUJIOKA HIROMASA (JP)
TANAKA OSAMU (JP)
TAIRA HIROAKI (JP)
MIKAMI NAOKI (JP)
OOTANI TOSHIAKI (JP)
TANAKA OSAMU (JP)
TAIRA HIROAKI (JP)
MIKAMI NAOKI (JP)
OOTANI TOSHIAKI (JP)
Application Number:
PCT/JP2018/032023
Publication Date:
March 07, 2019
Filing Date:
August 29, 2018
Export Citation:
Assignee:
TOKUYAMA CORP (JP)
International Classes:
C08K3/36; C01B33/18; C08K9/04; C08L101/00; C09C1/28; C09C3/08; C09C3/10; H01L23/29; H01L23/31
Domestic Patent References:
| WO2015016359A1 | 2015-02-05 | |||
| WO2018096876A1 | 2018-05-31 |
Foreign References:
| JP2012006823A | 2012-01-12 | |||
| JP2016190770A | 2016-11-10 | |||
| JP2012171813A | 2012-09-10 | |||
| JP2013193950A | 2013-09-30 | |||
| JP2012006823A | 2012-01-12 | |||
| JP2008019157A | 2008-01-31 |
Other References:
See also references of EP 3674264A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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