公开(公告)号：US20200055968A1

公开(公告)日：2020-02-20

申请号：US16336993

申请日：2017-06-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Akhlaq Moman ,  Inaamul Haq Siddiqui ,  Sudhakar R. Padmanabhan ,  Osamah Al-Humaidan ,  Haitham Al-Enazi

IPC: C08F4/651 ,  C08F4/656 ,  C08F210/06

Abstract: The present invention relates to a process for the preparation of a procatalyst suitable for preparing a catalyst composition for olefin polymerization, said process comprising the steps of: Step A) providing or preparing a Grignard compound; Step B) contacting the Grignard compound an alkoxy- or aryloxy silane compound, to give a solid support; Step C) optionally contacting the solid support obtained with at least one activating compound; and Step D) reacting the (activated) support with a halogen-containing Ti-compound as catalytic species, an activator and at least one internal electron donor in several sub steps wherein the internal donor is added in portions during at least two of said stages to obtain a procatalyst. The invention moreover relates to a procatalyst, a catalytic system comprising said procatalyst and to a process to prepare polyolefins using said catalyst system and the polyolefins obtained therewith.

公开(公告)号：US11117989B2

公开(公告)日：2021-09-14

申请号：US16337036

申请日：2017-09-14

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Akhlaq Moman ,  Inaamul Haq Siddiqui ,  Sudhakar R. Padmanabhan ,  Osamah Al-Humaidan ,  Haitham Al-Enazi

IPC: C08F110/06

Abstract: The present invention relates to a process for the preparation of a procatalyst suitable for preparing a catalyst composition for olefin polymerization, said process comprising the steps of: Step A) providing or preparing a Grignard compound; Step B) contacting the Grignard compound with a silane compound to give a first intermediate reaction product being a solid support; Step C) activating said solid support, comprising two sub steps: Step C1) contacting the solid support obtained in step B) with at least one first activating compound and a second activating compound; and Step C2) a second activation step by contacting the activated solid support obtained in step C1) with an activating electron donor; to obtain a second intermediate reaction product; Step D) reacting the second intermediate reaction product obtained in step C) with a halogen-containing Ti-compound, optionally an activator and at least one internal electron donor in several sub steps to obtain said procatalyst. The invention moreover relates to a procatalyst, a catalytic system comprising said procatalyst and to a process to prepare polyolefins using said catalyst system and the polyolefins obtained therewith.

公开(公告)号：US11192962B2

公开(公告)日：2021-12-07

申请号：US16336993

申请日：2017-06-19

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Akhlaq Moman ,  Inaamul Haq Siddiqui ,  Sudhakar R. Padmanabhan ,  Osamah Al-Humaidan ,  Haitham Al-Enazi

IPC: C08F4/651 ,  C08F4/656 ,  C08F210/06 ,  C08F110/06

Abstract: The present invention relates to a process for the preparation of a procatalyst suitable for preparing a catalyst composition for olefin polymerization, said process comprising the steps of: Step A) providing or preparing a Grignard compound; Step B) contacting the Grignard compound an alkoxy- or aryloxy silane compound, to give a solid support; Step C) optionally contacting the solid support obtained with at least one activating compound; and Step D) reacting the (activated) support with a halogen-containing Ti-compound as catalytic species, an activator and at least one internal electron donor in several sub steps wherein the internal donor is added in portions during at least two of said stages to obtain a procatalyst. The invention moreover relates to a procatalyst, a catalytic system comprising said procatalyst and to a process to prepare polyolefins using said catalyst system and the polyolefins obtained therewith.

公开(公告)号：US20200048378A1

公开(公告)日：2020-02-13

申请号：US16337036

申请日：2017-09-14

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Akhlaq Moman ,  Inaamul Haq Siddiqui ,  Sudhakar R. Padmanabhan ,  Osamah Al-Humaidan ,  Haitham Al-Enazi

IPC: C08F110/06

Abstract: The present invention relates to a process for the preparation of a procatalyst suitable for preparing a catalyst composition for olefin polymerization, said process comprising the steps of: Step A) providing or preparing a Grignard compound; Step B) contacting in the Grignard compound with a silane compound to give a first intermediate reaction product being a solid support; Step C) activating said solid support, comprising two sub steps: Step C1) contacting the solid support obtained in step B) with at least one first activating compound and a second activating compound; and Step C2) a second activation step by contacting the activated solid support obtained in step C1) with an activating electron donor; to obtain a second intermediate reaction product; Step D) reacting the second intermediate reaction product obtained in step C) with a halogen-containing Ti-compound, optionally an activator and at least one internal electron donor in several sub steps to obtain said procatalyst. The invention moreover relates to a procatalyst, a catalytic system comprising said procatalyst and to a process to prepare polyolefins using said catalyst system and the polyolefins obtained therewith.