Systems for producing silane
US-9487406-B2 · Nov 8, 2016 · US
Transsilylation catalysis
US11345604B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11345604-B2 |
| Application number | US-201716340404-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 29, 2017 |
| Priority date | Dec 27, 2016 |
| Publication date | May 31, 2022 |
| Grant date | May 31, 2022 |
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Abstract
Official abstract text for this publication.
A method for making chlorinated silazanes. The method comprises contacting: (a) a disilazane; (b) a chlorosilane; and (c) a catalyst which is a zinc salt of: (i) a sulfonic acid or (ii) a sulfonic acid imide.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for making chlorinated silazanes; said method comprising contacting: (a) a disilazane; (b) a chlorosilane; and (c) a catalyst which is a zinc salt of: (i) a sulfonic acid or (ii) a sulfonic acid imide. 2. The method of claim 1 in which the disilazane is substituted only by hydrocarbyl groups, chloro groups or a combination thereof. 3. The method of claim 2 in which the hydrocarbyl groups are C 1 -C 10 hydrocarbyl groups. 4. The method of claim 3 in which the chlorosilane is a chloro-substituted monosilane. 5. The method of claim 4 in which the chlorosilane is tetrachlorosilane, trichlorosilane or dichlorosilane. 6. The method of claim 5 in which the catalyst is a zinc salt of a sulfonic acid or imide having at least one trifluoromethyl group. 7. The method of claim 6 in which (a), (b) and (c) are contacted at a temperature from 20 to 150° C. 8. The method of claim 7 in which the hydrocarbyl groups are C 1 -C 4 hydrocarbyl groups. 9. The method of claim 8 in which the sulfonic acid is an aromatic sulfonic acid, methanesulfonic acid, trifluoromethanesulfonic acid or HO 3 S(CF 2 ) x CF 3 wherein x is an integer from 1 to 10.
Assignees
Inventors
Classifications
- C01B33/107Primary
Halogenated silanes · CPC title
- C07F7/10Primary
containing nitrogen {having a Si-N linkage} · CPC title
comprising sulfonic acid groups or the corresponding salts · CPC title
Zinc · CPC title
being perfluorinated, i.e. comprising at least one perfluorinated moiety as substructure in case of polyfunctional compounds · CPC title
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- What does patent US11345604B2 cover?
- A method for making chlorinated silazanes. The method comprises contacting: (a) a disilazane; (b) a chlorosilane; and (c) a catalyst which is a zinc salt of: (i) a sulfonic acid or (ii) a sulfonic acid imide.
- Who is the assignee on this patent?
- Dow Silicones Corp, Ddp Specialty Electronic Mat Us 9 Inc
- What technology area does this patent fall under?
- Primary CPC classification C01B33/107. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 31 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).