公开(公告)号：US20240166780A1

公开(公告)日：2024-05-23

申请号：US18284319

申请日：2022-03-31

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Martin Alexander Zuideveld ,  Henrica Norberta Alberta Maria Steenbakkers-Menting ,  Sang Yull Kim ,  Marios Lagoidis

IPC: C08F110/06

CPC classification number: C08F110/06

Abstract: A process for the production of a propylene homopolymer or a propylene-ethylene copolymer includes polymerizing propylene and optional ethylene comonomers in the presence of a catalyst, wherein the catalyst is obtainable by a process of A) providing a Ziegler-Natta procatalyst including contacting a magnesium-containing support with i) a halogen-containing titanium compound, ii) ethylbenzoate as an activator, iii) and as internal donor an aminobenzoate compound according to formula B
preferably 4-[benzoyl(methyl)amino]pentan-2-yl benzoate (AB); and B) contacting the Ziegler-Natta procatalyst obtained in step A) with a co-catalyst and a Selectivity Control Agent (SCA) in combination with an Activity Limiting Agent (ALA) to obtain the catalyst.