Patent · US Expired

Process and an apparatus for polymerization of olefin monomers

US6197264A · kind A · utility

13Cited by

8References

25Claims

0Family size

Assignee

Borealis A/S · DK

Inventors

Esa Korhonen · Porvoo, FI
Pauli Leskinen · Porvoo, FI
Ward Mennes · Lommel, BE
Fred Bergmann · Barenburg, DE

Key dates

Filing date	Oct 19, 1998
Grant date	Mar 6, 2001
Priority date	—
Expiry date	Oct 19, 2018

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S526/918
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A process for polymerization of olefin monomers by forming a fluid stream containing catalyst, continuously feeding the fluid stream into an elongated polymerization reactor having at least two successive chambers separated by dividing plates having a diameter slightly smaller than that of the polymerization rector, feeding monomers, and an optional catalyst and donor into the polymerization reactor under temperature conditions to polymerize the olefin while maintaining a mixed flow in the chambers to polymerize the monomers and optional comonomer in the fluid, and removing the resultant polymer slurry from the polymerization reactor.

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