Patent · US Active

Process for gas-phase polymerization of olefins

US11098143B2 · kind B2 · utility

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0References

12Claims

0Family size

Assignee

Basell Poliolefine Italia S.r.l. · IT

Inventors

Antonio Mazzucco · Ferrara, IT
Enrico Balestra · Ferrara, IT
Roberto Pantaleoni · Ferrara, IT
Davide Tartari · Ferrara, IT
Riccardo Rinaldi · Ferrara, IT

Key dates

Filing date	Sep 13, 2018
Grant date	Aug 24, 2021
Priority date	—
Expiry date	Sep 13, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2410/02
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for the polymerization of olefins in gas phase carried out in a reactor having two interconnected polymerization zones, a first zone (riser) and a second zone (downcomer), wherein growing polymer particles:

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