公开(公告)号：US20220389137A1

公开(公告)日：2022-12-08

申请号：US17630798

申请日：2020-07-30

Applicant: Dow Global Technologies LLC

Inventor： Linfeng Chen ,  Kurt F. Hirsekorn ,  Jeffrey A. Simms ,  David M. Pearson

IPC: C08F210/16

Abstract: The catalyst system includes a heterogeneous procatalyst, an electron donor, and a hydrogenation procatalyst. The heterogeneous procatalyst includes a titanium species, an aluminum species, and a magnesium chloride component. The hydrogenation procatalyst has the formula Cp2TiXnTiCp2 or Cp2TiXn. In formula Cp2TiXn, each Cp is a cyclopentadienyl substituted with at least one R1, wherein R1 is (C1-C10)alkyl; and each X is independently monoanionic or neutral, wherein each X is independently (C1-C40)hydrocarbon, (C1-C40)heterohydrocarbon, (C1-C40)hydrocarbyl, (C1—C40)heterohydrocarbyl, or a halogen atom.