公开(公告)号：US20220081305A1

公开(公告)日：2022-03-17

申请号：US17288362

申请日：2019-10-23

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Masayasu IGARASHI ,  Tomohiro MATSUMOTO ,  Takeshi NOZAWA ,  Fujio YAGIHASHI ,  Kazuhiko SATO

IPC: C01B33/12 ,  C30B29/60 ,  C30B7/06 ,  C30B7/14

Abstract: The present invention provides a crystal comprising a plurality of silanol compounds of at least one selected from the group consisting of a hexamer represented by following formula (1), an octamer represented by following formula (2), and a decamer represented by following formula (3) and having an interaction via a hydrogen bond by at least one hydroxy group between the silanol compounds.

公开(公告)号：US20220056056A1

公开(公告)日：2022-02-24

申请号：US17472421

申请日：2021-09-10

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Masayasu IGARASHI ,  Kazuhiko SATO ,  Fujio YAGIHASHI ,  Tomohiro MATSUMOTO ,  Takeshi NOZAWA ,  Shigeru SHIMADA

IPC: C07F7/08 ,  C07F7/21

Abstract: The present invention provides a method for producing a silanol compound capable of efficiently producing a silanol compound. The method for producing a silanol compound includes a proton exchange step of forming a silanol compound having a structure represented by following formula (c) by reacting a silicate having a structure represented by following formula (a) with an acidic compound having an acid dissociation constant pKa of −1 to 20 in dimethyl sulfoxide (DMSO). (In formula (a), Qi+ represents an i-valent cation and i represents an integer of 1 to 4).

公开(公告)号：US20210061824A1

公开(公告)日：2021-03-04

申请号：US16606487

申请日：2018-03-05

Applicant: National Institute of Advanced Industrial Science and Technology

Inventor： Masayasu IGARASHI ,  Kazuhiko SATO ,  Fujio YAGIHASHI ,  Tomohiro MATSUMOTO ,  Takeshi NOZAWA ,  Shigeru SHIMADA

IPC: C07F7/08 ,  C07F7/21

Abstract: The present invention provides a method for producing a silanol compound capable of efficiently producing a silanol compound. The method for producing a silanol compound includes a proton exchange step of forming a silanol compound having a structure represented by following formula (c) by reacting a silicate having a structure represented by following formula (a) with an acidic compound having an acid dissociation constant pKa of −1 to 20 in dimethyl sulfoxide (DMSO). (In formula (a), Qi+ represents an i-valent cation and i represents an integer of 1 to 4).