| Basell Polyolefine Italia s.r.l. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110054127 | PROCESS FOR THE GAS-PHASE POLYMERIZATION OF OLEFINS - A process for the polymerisation of olefins carried out in a gas-phase reactor having interconnected polymerization zones, where the growing polymer particles flow upward through a first polymerization zone (riser) under fast fluidization or transport conditions, leave said riser and enter a second polymerization zone (downcomer) through which they flow downward under the action of gravity, leave said downcomer and are reintroduced into the riser, a gas recycle stream being withdrawn from said first polymerisation zone, subjected to cooling below its dew point and then returned to said first polymerisation zone, the process being characterised in that said gas recycle stream is cooled at a temperature Tc ranging from 0.05° C. to 3° C. below its dew point. | 03-03-2011 |
| 20100331504 | CATALYST FOR THE POLYMERIZATION OF OLEFINS - The present invention relates to catalysts systems for the polymerization of olefins CH | 12-30-2010 |
| 20100324241 | CATALYST FOR THE POLYMERIZATION OF OLEFINS - The present invention relates to catalysts systems for the polymerization of ethylene and its mixtures with olefins CH | 12-23-2010 |
| 20100324240 | CATALYST FOR THE POLYMERIZATION OF OLEFINS - The present invention relates to catalysts systems for the polymerization of ethylene and its mixtures with olefins CH | 12-23-2010 |
