Olefin polymerization catalyst comprising cyclotriveratrylene and derivatives thereof

US11401356B2 · kind B2 · utility

Assignees

• CHINA PETROLEUM & CHEMICAL CORPORATION · CN
• BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Ting Huang · Taipei, TW
• Zifang Guo · Beijing, CN
• Zhufang Sun · Beijing, CN
• Junling Zhou · Beijing, CN
• Lunjia Xie · Beijing, CN
• Hongxu Yang · Beijing, CN
• Bingyi Li · Beijing, CN
• Qingqiang Gou · Beijing, CN
• Tingjie HUANG · Beijing, CN
• Peng Kou · Beijing, CN
• Xiaofan Zhang · Beijing, CN
• Meiyan FU · Beijing, CN
• Jie LIN · Beijing, CN
• Yonghua Ma · Ningbo City, CN

Key dates

• Filing date: Jul 19, 2018
• Grant date: Aug 2, 2022
• Expiry date: May 13, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2410/01
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention discloses a Ziegler-Natta catalyst system for olefin polymerization, comprising at least one compound represented by formula (I) as (i) an internal electron donor, (ii) an external electron donor, or (iii) the both, wherein M1, M2, M3, M4, M5, M6, M1′, M2′, M3′, M4′, M5′ and M6′ are each independently selected from the group consisting of hydrogen, hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, —R1 and —OR2, wherein R1 and R2 are each independently a C1-C10 hydrocarbyl, which is unsubstituted or substituted by a substituent selected from the group consisting of hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, C1-C10 alkoxy and heteroatoms; and wherein, when among M1-M6 and M1′-M6′, any two adjacent groups on the same phenyl ring are each independently selected from the group consisting of R1 and —OR2, the two adjacent groups may optionally be linked to form a ring, with a proviso that M1, M2, M3, M4, M5, M6, M1′, M2′, M3′, M4′, M5′ and M6′ are not simultaneously hydrogen.