Patent · US Expired

Tetrahydrofluorenyl containing group 4 metallocenes useful as catalysts for the polymerization of olefins, process for their preparation and use of said metallocenes for the polymerization of olefins

US6448424B1 · kind B1 · utility

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5References
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Inventors

Key dates

Filing dateMay 1, 2000
Grant dateSep 10, 2002
Priority date—
Expiry dateMay 1, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S526/943
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Novel silylene or ethylene bis(tetrahydrofluorenyl)metallocenes are synthesized and used as olefin polymerization catalysts.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.