Patent · US Expired

Nitrogen-containing group 13 anionic complexes for olefin polymerization

US6211105A · kind A · utility

71Cited by
7References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 20, 2000
Grant dateApr 3, 2001
Priority date—
Expiry dateJul 20, 2020

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S526/943
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

This description addresses a process for the preparation of polyolefins from one or more olefinic monomers comprising combining said olefins under olefin polymerization conditions with an organometallic catalyst compound that is activated for olefin polymerization by reaction with a Group 13 element cocatalyst complex comprising at least one halogenated, nitrogen-containing aromatic group ligand. High number-average molecular weight polymers and copolymers at high rates of productivity were observed from the use of metallocene catalysts complexes when activated with [(C.sub.6 H.sub.5).sub.3 C][(C.sub.6 F.sub.5).sub.3 B(C.sub.5 F.sub.4 N)].

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