| 发明名称 |
Highly pure silicone ladder polymer with high mol.wt. and prepolymer |
| 摘要 |
Silicone ladder polymer (I), contg. at most 1 ppm Na,K, Fe, Cu Pb, Mg, Mn and Co and at most 1 ppb U and Th, is of formula (A): R1 = H, lower alkyl, opt. substd. alkenyl or aryl; R2-5 = H or lower alkyl; n = 600-10000. Also claimed is a silicone ladder prepolymer (II) of formula (A; n = 5-600).
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| 申请公布号 |
DE19608904(A1) |
申请公布日期 |
1996.09.12 |
| 申请号 |
DE1996108904 |
申请日期 |
1996.03.07 |
| 申请人 |
MITSUBISHI DENKI K.K., TOKIO/TOKYO, JP |
发明人 |
YAMAMOTO, SHIGEYUKI, TOKIO/TOKYO, JP;NISHIMURA, HIROYUKI, TOKIO/TOKYO, JP;ADACHI, HIROSHI, TOKIO/TOKYO, JP |
| 分类号 |
C08L83/04;C07F7/21;C08G77/12;C08G77/14;C08G77/22;C08G77/34;H01L21/312;H01L21/768;H01L23/522;H01L23/532;(IPC1-7):C08G77/12;C07F7/18;C08G77/18;C08G77/06;C08G77/20 |
主分类号 |
C08L83/04 |
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