Invention Grant
- Patent Title: Metallocene synthesis process
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Application No.: US17252980Application Date: 2019-06-20
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Publication No.: US11279723B2Publication Date: 2022-03-22
- Inventor: Charles J. Harlan , Matthew W. Holtcamp , Subramaniam Kuppuswamy , Steven C. Haas
- Applicant: ExxonMobil Chemical Patents Inc.
- Applicant Address: US TX Baytown
- Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee Address: US TX Baytown
- Priority: EP18191970 20180831
- International Application: PCT/US2019/038169 WO 20190620
- International Announcement: WO2020/009802 WO 20200109
- Main IPC: C07F17/00
- IPC: C07F17/00
Abstract:
A process to synthesize a Group 4 ansa-metallocene. The process includes reacting an alkaline earth metal dianion dicyclopentadiene ligand-Lewis base complex with a Group 4 metal tetrahalide in the presence of an alkali metal halide, and forming the Group 4 ansa-metallocene dihalide with high yield and purity.
Public/Granted literature
- US20210246155A1 Metallocene Synthesis Process Public/Granted day:2021-08-12
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