| Original document(6 pages) 中文版 |
This invention discloses a preparation of di-tertiary butoxy di-acetoxy silicane. The mentioned preparation is a method of two-step dropping synthesis, the first is acylation, second is esterification. The mentioned acylation reaction is that silicon tetrachloride is slowly dropped into acetic anhydride that is in the caldron, reacting under certain temperature requirement, ferri ion produced in the reaction process is adverse to product quality, ferri ion content that is in the caldron is reduced by the method of releasing some acetic anhydride from caldron bottom, then warming to evaporate by-product that is acetyl chloride, the remained thing in the caldron is intermediate material that is tetro-acetoxy silicane. The mentioned esterification reaction is that tertiary butyl alcohol is slowly dropped into intermediate material which is in caldron, reacting under certain temperature and time, in condition of vacuum by-product that is acetic acid is evaporated out, the remained thing is di-tertiary butoxy di-acetoxy silicane. In this preparation, technology and manipulation is simple, yield and purity of objective product is high, production cost is relatively low. Di- tertiary butoxy di-acetoxy silicane is a cross linking agent of room temperature rigidification which produces depickling type of organosilicon hermetization mastic. |
Application Number
申请号 |
200510095040 |
Application Date
申请日 |
2005.10.27 |
| Title 名称 |
Preparation method of ditert-butyldiacetyl oxygen-base silane |
Publication Number
公开号 |
1955184 |
Publication Date
公开日 |
2007.05.02 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
C07F7/02 |
Applicant(s) Name
申请人 |
Jiangyan Yangzijiang Chemical Industry Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Chen Aming;Cao Kaoshan;Ding Xiuping |
| Attorney & Agent 代理人 |
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| More information 更 多 信 息 |
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