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公开(公告)号：US10308670B2
公开(公告)日：2019-06-04
申请号：US15116063
申请日：2015-02-03
Inventor： Masayasu Igarashi , Shigeru Shimada , Kazuhiko Sato , Tomohiro Matsumoto
IPC: C07F7/08 , B01J23/44 , B01J23/46 , C01B33/12 , C07F7/18 , B01J37/03 , B01J23/40 , B01J23/52 , B01J37/02
Abstract: The purpose of the present invention is to provide silanol compounds that can be used as raw materials of siloxane compounds and the like, and a composition of the silanol compounds, as well as to provide a production method that makes it possible to produce silanol compounds at excellent yield. A composition comprising 5 mass % to 100 mass % of a silanol compound represented by Formulas (A) to (C) can be prepared by devising to produce silanol compounds under water-free conditions, to produce silanol compounds in a solvent having the effect of suppressing the condensation of silanol compounds, and to perform other such processes, the composition being able to be used as a raw material or the like of siloxane compounds because the silanol compounds can be stably present in the resulting composition.
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公开(公告)号：US20240300984A1
公开(公告)日：2024-09-12
申请号：US18663837
申请日：2024-05-14
Inventor： Masayasu Igarashi , Kazuhiko Sato , Fujio Yagihashi , Tomohiro Matsumoto , Takeshi Nozawa , Shigeru Shimada
CPC classification number: C07F7/0836 , 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：US12024532B2
公开(公告)日：2024-07-02
申请号：US17472421
申请日：2021-09-10
Inventor： Masayasu Igarashi , Kazuhiko Sato , Fujio Yagihashi , Tomohiro Matsumoto , Takeshi Nozawa , Shigeru Shimada
CPC classification number: C07F7/0836 , 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：US20170183363A1
公开(公告)日：2017-06-29
申请号：US15116063
申请日：2015-02-03
Inventor： Masayasu Igarashi , Shigeru Shimada , Kazuhiko Sato , Tomohiro Matsumoto
CPC classification number: C07F7/0836 , B01J23/40 , B01J23/44 , B01J23/462 , B01J23/464 , B01J23/52 , B01J37/0201 , B01J37/03 , C01B33/12 , C07F7/0874 , C07F7/1892
Abstract: The purpose of the present invention is to provide silanol compounds that can be used as raw materials of siloxane compounds and the like, and a composition of the silanol compounds, as well as to provide a production method that makes it possible to produce silanol compounds at excellent yield. A composition comprising 5 mass % to 100 mass % of a silanol compound represented by Formulas (A) to (C) can be prepared by devising to produce silanol compounds under water-free conditions, to produce silanol compounds in a solvent having the effect of suppressing the condensation of silanol compounds, and to perform other such processes, the composition being able to be used as a raw material or the like of siloxane compounds because the silanol compounds can be stably present in the resulting composition.
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