Preparation of supported auxiliary catalysts at elevated temperature and pressure in a closed vessel
US5856255A · kind A · utility
3Cited by
19References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1996 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Jan 22, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F4/61922
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A slurry is formed from an auxiliary catalyst (e.g., an aluminoxane or organoboron compound), a porous inorganic oxide carrier, and an inert organic solvent. The slurry is enclosed in a closed vessel and the temperature and pressure of the enclosed slurry are increased to a temperature of from about 80.degree. C. to 250.degree. C. and a pressure of from about 5 to 500 psig such that a supported composition is produced in the vessel. After opening the closed vessel, the supported composition and the solvent are separated from each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.