| 发明名称 | Method of stabilizing siloxanes having terminal hydroxy groups | ||
| 摘要 | Siloxanes having terminal hydroxy groups, and which have a content of cyclic siloxanes of not more than 5% by weight, are stabilized by addition of ammonia in gaseous form or as a solution in a protic or aprotic solvent or in the form of an ammonia-releasing compound in amounts of at least 0.01 ppm by weight and not more than 100 ppm by weight, calculated as ammonia and based on the total weight of the siloxanes having terminal hydroxy groups. Ammonia in gaseous form is preferably used. | ||
| 申请公布号 | US9150703(B2) | 申请公布日期 | 2015.10.06 |
| 申请号 | US201414334854 | 申请日期 | 2014.07.18 |
| 申请人 | Wacker Chemie AG | 发明人 | Baskakov Agnes;Geisberger Gilbert;Tanzer Michaela |
| 分类号 | C08J3/00;C08K3/28;C08J11/00;C08G77/16 | 主分类号 | C08J3/00 |
| 代理机构 | Brooks Kushman P.C. | 代理人 | Brooks Kushman P.C. |
| 主权项 | 1. A method of stabilizing siloxanes having terminal hydroxy groups and having a content of cyclic siloxanes of not more than 5% by weight, based on the total weight of the siloxanes having terminal hydroxy groups, comprising adding ammonia in gaseous form or as a solution in a protic or aprotic solvent or in the form of an ammonia-releasing compound, to provide an ammonia content in the siloxanes of at least 0.01 ppm by weight and not more than 100 ppm by weight, calculated as ammonia and based on the total weight of the siloxanes having terminal Si-bonded hydroxy groups. | ||
| 地址 | Munich DE | ||