Supported catalyst comprising expanded anions
US6716786B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2000 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Oct 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S526/943
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition useful as an addition polymerization catalyst comprising:A) an inert support;B) a Group 3-10 or Lanthanide metal complex; andC) an activator compound capable of causing the metal complex B) to form an active polymerization catalyst, said compound corresponding to the formula:(A*+a)b(Z*J*j)−cd,  (I) wherein:A* is a cation of charge +a,Z* is an anion group of from 1 to 50, preferably 1 to 30 atoms, not counting hydrogen atoms, further containing two or more Lewis base sites;J* independently each occurrence is a Lewis acid coordinated to at least one Lewis base-site of Z*, and optionally two or more such J* groups may be joined together in a moiety having multiple Lewis acidic functionality,j is a number from 2 to 12 anda, b, c, and d are integers from 1 to 3, with the proviso that a×b is equal to c×d.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.