发明名称 |
Preparation of organoplysiloxane gum |
摘要 |
An organopolysiloxane gum is prepared by polymerizing a cyclic organosiloxane with a low molecular weight, linear organopolysiloxane end-blocked with a triorganosilyl group in the presence of an alkaline catalyst. The polymerization reaction is effected under a reduced pressure, typically of 500 mmHg or lower.
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申请公布号 |
US6221996(B1) |
申请公布日期 |
2001.04.24 |
申请号 |
US19990438980 |
申请日期 |
1999.11.12 |
申请人 |
SHIN-ETSU CHEMICAL CO., LTD. |
发明人 |
SHIBATA KEIJI;TAWARA KENJI |
分类号 |
C08G77/06;C08G77/08;C08G77/10;C08G77/20;(IPC1-7):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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