Metal complex compounds
US5132380A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Sep 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A monocyclopentadienyl or substituted monocyclopentadienyl metal complex containing compound useful as a polymerization catalyst corresponding to the formula: EQU CpMX.sub.n.sup.+ A.sup.- wherein: PA0 Cp is a single .eta..sup.5 -cyclopentadienyl or .eta..sup.5 -substituted cyclopentadienyl group optionally covalently bonded to M through a substituent; PA0 M is a metal of Group 3-10 or the Lanthanide Series of the Periodic Table bound in an .eta..sup.5 bonding mode to the cyclopentadienyl or substituted cyclopentadienyl group; PA0 X each occurrence independently is selected from the group consisting of hydride, halo, alkyl, aryl, silyl, germyl, aryloxy, alkoxy, amide, siloxy, neutral Lewis base ligands and combinations thereof having up to 20 non-hydrogen atoms, and optionally one X together with Cp forms a metallocycle with M; PA0 R is alkyl or aryl of up to 10 carbons; PA0 n is one or two depending on the valence of M; and PA0 A is a noncoordinating, compatible anion of a Bronsted acid salt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.