公开(公告)号：EP4421102A3

公开(公告)日：2024-11-13

申请号：EP24173506.7

申请日：2019-05-23

申请人： Dow Global Technologies LLC

发明人： YU, Mingzhe ,  BARTON, David Gordon ,  HIRSEKORN, Kurt F. ,  ONAM, Sadeka ,  NICKIAS, Peter N ,  HEITSCH, Andrew T. ,  PETERSON, Thomas H.

IPC分类号： C08F210/16

摘要： A heterogeneous procatalyst includes a titanium species, a magnesium chloride component, and a chlorinating agent having a structure A(C1) x (R 1 ) 3-x , where A is aluminum or boron, R 1 is a (C 1 -C 30 ) hydrocarbyl, and x is 1, 2, or 3. The magnesium chloride component may be thermally treated at a temperature greater than 100 °C for at least 30 minutes before or after introduction of the chlorinating agent and titanium species to the heterogeneous procatalyst. The heterogeneous procatalyst having the thermally treated magnesium chloride exhibits improved average molecular weight capability. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed.

公开(公告)号：EP4421102A2

公开(公告)日：2024-08-28

申请号：EP24173506.7

申请日：2019-05-23

申请人： Dow Global Technologies LLC

发明人： YU, Mingzhe ,  BARTON, David Gordon ,  HIRSEKORN, Kurt F. ,  ONAM, Sadeka ,  NICKIAS, Peter N ,  HEITSCH, Andrew T. ,  PETERSON, Thomas H.

IPC分类号： C08F210/16

CPC分类号： C08F210/16 ,  C08F2410/0420130101

摘要： A heterogeneous procatalyst includes a titanium species, a magnesium chloride component, and a chlorinating agent having a structure A(C1)x(R1)3-x, where A is aluminum or boron, R1 is a (C1-C30) hydrocarbyl, and x is 1, 2, or 3. The magnesium chloride component may be thermally treated at a temperature greater than 100 °C for at least 30 minutes before or after introduction of the chlorinating agent and titanium species to the heterogeneous procatalyst. The heterogeneous procatalyst having the thermally treated magnesium chloride exhibits improved average molecular weight capability. Processes for producing the heterogeneous procatalyst and processes for producing ethylene-based polymers utilizing the heterogeneous procatalyst are also disclosed.