WO2023042155 - OLEFIN POLYMERIZATION CATALYST SYSTEM AND POLYMERIZATION PROCESS
National phase entry:
Publication Number
WO/2023/042155
Publication Date
23.03.2023
International Application No.
PCT/IB2022/058783
International Filing Date
16.09.2022
Title **
[English]
OLEFIN POLYMERIZATION CATALYST SYSTEM AND POLYMERIZATION PROCESS
[French]
SYSTÈME CATALYSEUR DE POLYMÉRISATION D'OLÉFINES ET PROCÉDÉ DE POLYMÉRISATION
Applicants **
NOVA CHEMICALS (INTERNATIONAL) S.A.
Avenue de la Gare 14
1700 Fribourg, CH
Inventors
MORRISON, Darryl
2421 - 22A Street NW
Calgary, Alberta T2M 3X8, CA
CHIU, Frederick
704, 2909 - 17th Avenue SW
Calgary, Alberta T3E 0B1, CA
GOETTEL, James T.
5028 Nolan Road NW
Calgary, Alberta T2K 2N8, CA
GAO, Xiaoliang
78 Blazer Estates Ridge
Calgary, Alberta T3L 2N7, CA
SMILEY, Janelle
215 Edgeland Road NW
Calgary, Alberta T3A 2Y3, CA
Priority Data
63/246,249
20.09.2021
US
63/246,490
21.09.2021
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Translation |
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Recalculate
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 3364 | |
| EPO | Filing, Examination | 32127 | |
| Japan | Filing | 591 | |
| South Korea | Filing | 607 | |
| USA | Filing, Examination | 12160 |
Total: 48849 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
An olefin polymerization process is carried out in the presence of a catalyst system comprising a pre-polymerization catalyst, a boron-based catalyst activator, an alkylaluminoxane co-catalyst, and a hindered phenol compound. The pre-polymerization catalyst is a titanium complex and has an indenoindolyl ligand bridged to a phenoxy ligand via a silyl group. The catalyst system is effective at polymerizing ethylene with alpha-olefins in a solution phase polymerization process at high temperatures and produces ethylene copolymers with high molecular weight and high degrees of alpha-olefin incorporation.[French]
L'invention concerne un procédé de polymérisation d'oléfines qui est effectué en présence d'un système catalyseur comprenant un catalyseur de pré-polymérisation, un activateur de catalyseur à base de bore, un co-catalyseur alkylaluminoxane et un composé phénol encombré. Le catalyseur de pré-polymérisation est un complexe de titane et comprend un ligand indénoindolyle ponté à un ligand phénoxy par l'intermédiaire d'un groupe silyle. Le système catalyseur est efficace pour la polymérisation d'éthylène avec des alpha-oléfines dans un procédé de polymérisation en phase solution à des températures élevées et produit des copolymères d'éthylène ayant une masse moléculaire élevée et des degrés élevés d'incorporation d'alpha-oléfines.