| 发明名称 |
Method for preparing functionalised polyorganosiloxane resins by redistribution in the presence of at least one triflic acid derivative |
| 摘要 |
The present invention relates to a process for preparing functionalized polyorganosiloxane (POS) resins comprising units M: (R<SUB>3</SUB>SiO<SUB>1/2</SUB>), Q: (SiO<SUB>4/2</SUB>) and M': (Y<SUB>a</SUB>R<SUB>3-a</SUB>SiO<SUB>1/2</SUB>) and optionally D: (R<SUB>2</SUB>SiO<SUB>2/2</SUB>) and/or D': (RYSiO<SUB>2/2</SUB>) and T: (RSiO<SUB>3/2</SUB>) and/or T': (YSiO<SUB>3/2</SUB>), with, in these units: R=C<SUB>1</SUB>-C<SUB>10 </SUB>alkyl or a C<SUB>8</SUB>-C<SUB>12 </SUB>aryl and Y a functional group (e.g.: Si-H), by redistribution of POS resins using POSf bearing functional units M' and/or D' and/or in the presence of an acid catalyst of the trifluoromethane-sulfonimide (TFSI) type. The present invention also relates to the aforementioned catalyst system.
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| 申请公布号 |
US2005239987(A1) |
申请公布日期 |
2005.10.27 |
| 申请号 |
US20050509071 |
申请日期 |
2005.06.17 |
| 申请人 |
BOISSON FERNANDE;MIGNANI GERARD |
发明人 |
BOISSON FERNANDE;MIGNANI GERARD |
| 分类号 |
C08G77/08;C08G77/10;(IPC1-7):C08G77/08 |
主分类号 |
C08G77/08 |
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