Invention Grant
- Patent Title: Method of preparing solubilized catalyst complex, the solubilized catalyst formulation, and method of catalytic olefin polymerization
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Application No.: US17270660Application Date: 2019-09-26
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Publication No.: US11492424B2Publication Date: 2022-11-08
- Inventor: Damien Guironnet , Camille Boucher-Jacobs
- Applicant: The Board of Trustees of the University of Illinois
- Applicant Address: US IL Urbana
- Assignee: The Board of Trustees of the University of Illinois
- Current Assignee: The Board of Trustees of the University of Illinois
- Current Assignee Address: US IL Urbana
- Agency: Cantor Colburn LLP
- International Application: PCT/US2019/053080 WO 20190926
- International Announcement: WO2020/072266 WO 20200409
- Main IPC: C08F4/70
- IPC: C08F4/70

Abstract:
The inventors have discovered a method of comprising formation of water soluble catalyst precursor by combining a Group 8 to Group 11 transition metal containing catalyst and a surfactant. The surfactant is characterized by the presence of a hydrophobic segment and a hydrophilic segment. It is believed that the surfactant replaces the labile ligand on the catalyst precursor structure by simple ligand substitution. The precursor is then contacted with one or more monoethylenically unsaturated monomers under polymerization conditions to form a polymer.
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