公开(公告)号：US20190062168A1

公开(公告)日：2019-02-28

申请号：US16072487

申请日：2017-01-24

Applicant: Panasonic Intellectual Property Management Co. Ltd.

Inventor： TAKASHI KUBO ,  TAICHI NAKAMURA ,  SHIGEAKI SAKATANI

IPC: C01B33/159 ,  C01B33/146 ,  C07F7/08 ,  D06M11/79

Abstract: A hydrophobic treatment method is used in which at least one sheet filled with a gelled silicic acid is tilted at least two degrees with respect to a horizontal direction in a hydrophobizing solution, and the gelled silicic acid is hydrophobized. A manufacturing method for a sheet-like member is also used. The manufacturing method includes: a sol preparing step of adjusting the pH of a water glass aqueous solution to obtain a sol solution of silicic acid; an adding step of adding the sol solution to a fiber; a gel step of polymerizing and gelling the sol solution; a hydrophobic treatment step of hydrophobizing the gel with the hydrophobic treatment method; and a drying step of drying the hydrophobized gel.