Method for catalyst preparation and process of polyolefin polymerization from said catalyst
Патенты
| Язык: |
Английский |
| Тип: |
Заявка на патент |
| Номер (11) |
US 20100143719 A1 |
| Номер заявки (21): |
12/513,612 |
| Дата подачи заявки (22): |
16 нояб. 2007 г. |
| Дата начала отсчета срока действия патента (24): |
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| Дата публикации патента (44,45,46): |
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| Дата публикации заявки (43): |
10 июн. 2010 г. |
The invention relates to a method for the preparation of a catalyst suitable for the polymerisation of an olefin by contacting a magnesium compound with a halogenized group 4 or 5 metal compound, wherein the magnesium compound is obtained by the reaction of a solution of an organomagnesium compound with a silicon mixture or compound, characterized in that (a) the organomagnesium compound solution is obtained by contacting metallic magnesium Mg with an aromatic halide RX and an ether R0, wherein R is an aromatic group containing 6 to 20 carbons and X is a halide, and (b) the silicon mixture or compound is the product obtained by mixing or reacting a hydrocarbyl halide silane with an alkoxy group or aryloxy group containing silane compound.