发明名称 |
CATALYZED REDISTRIBUTION OF POLYORGANOSILOXANES |
摘要 |
The instant invention is a catalyzed process for the redistribution of linear, chloride or hydroxy end-terminated polyorganosiloxanes or cyclic polyorgano-siloxanes. Effective catalysts for the described process are alumina, silica-alumina, activated carbon, zeolite and acid clay. The catalyzed redistribution process can be incorporated as an element of a three-stage process. The three-stage process allows control of the yield of cyclic polyorganosiloxanes.
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申请公布号 |
CA2054357(A1) |
申请公布日期 |
1992.05.10 |
申请号 |
CA19912054357 |
申请日期 |
1991.10.28 |
申请人 |
DOW CORNING CORPORATION |
发明人 |
BOURGOIN, JODI A.;FREEBURNE, STEVEN K.;HALM, ROLAND L.;NAASZ, BRIAN, M.;NISWONGER, DAVID S.;VANKOEVERING, DENNIS G. |
分类号 |
C07F7/08;C07F7/21;C08G77/08;C08G77/10;C08G77/32;(IPC1-7):C07F7/08 |
主分类号 |
C07F7/08 |
代理机构 |
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