发明名称 |
Anhydrous hydrogen chloride evolving one-step process for producing siloxanes. |
摘要 |
<p>The instant invention is a one-step process for producing polydiorganosiloxanes (siloxanes). In the described process, a mixture comprising diorganodichlorosilane and a source of triorganosilyl groups is contacted with excess water essentially saturated with hydrogen chloride. Product siloxanes are isolated as well as saturated aqueous hydrogen chloride and anhydrous hydrogen chloride. The amount of triorganosilyl groups present in the mixture is controlled to set the degree of polymerization of product siloxanes. The isolated saturated aqueous hydrogen chloride is recycled to the process. Excess chloride generated in the process is collected as anhydrous hydrogen chloride.</p> |
申请公布号 |
EP0515082(A1) |
申请公布日期 |
1992.11.25 |
申请号 |
EP19920304292 |
申请日期 |
1992.05.12 |
申请人 |
DOW CORNING CORPORATION |
发明人 |
BOKERMAN, GARY NED;SCHUELKE, LAWRENCE MICHAEL;FREEBURNE, STEVEN KERRY;VANKOEVERING, DENNIS GENE |
分类号 |
C08G77/06 |
主分类号 |
C08G77/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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