公开(公告)号：US20170240665A1

公开(公告)日：2017-08-24

申请号：US15314994

申请日：2015-06-01

Applicant: SABIC Global Technologies B.V.

Inventor： Martin Alexander Zuideveld ,  Aurora Alexandra Batinas-Geurts ,  Anika Meppelder

IPC: C08F10/06 ,  C08F10/02

CPC classification number: C08F10/06 ,  C08F10/02 ,  C08L23/12 ,  C08F4/651 ,  C08F4/6565 ,  C08F110/06 ,  C08F2500/12 ,  C08F2500/18 ,  C08L23/16 ,  C08F210/06 ,  C08F210/16 ,  C08F4/6546

Abstract: The present invention relates to a process for preparing a procatalyst for polymerization of olefins, comprising contacting a magnesium-containing support with a halogen-containing titanium compound, a monoester, a first internal electron donor, wherein the internal electron donor is represented by a compound represented by Formula A, for example a Fischer projection of Formula A, and optionally a second internal electron donor selected from a group consisting of diesters and diethers, Formula A said process comprising the steps of: i) contacting a butyl Grignard compound with an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product; ii) optionally activating the first intermediate reaction product with at least one activating compound to give a second intermediate reaction product; iii) contacting the first or second intermediate reaction product, obtained respectively in step i) or ii), with a halogen-containing Ti-compound, the monoester, and said internal electron represented by a compound represented by Formula A, for example a Fischer projection of Formula A, as the first internal electron donor, and optionally the diester or di-ether as the second internal electron donor. The present invention also relates to a polymerization catalyst system comprising said procatalyst, a co-catalyst and optionally an external electron donor. Furthermore, the present invention relates to a polyolefin obtainable by the process according to the present invention and a shaped article thereof.