Patent · US Expired

Process for transitioning between incompatible polymerization catalysts

US5747612A · kind A · utility

8Cited by
2References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 19, 1995
Grant dateMay 5, 1998
Priority date
Expiry dateMay 19, 2015

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S526/901
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

This invention relates to a process for transitioning between incompatible polymerization catalyst systems. Particularly, the invention relates to a process for transitioning from an olefin polymerization reaction utilizing a traditional Ziegler-Natta catalyst system to a metallocene-olefin polymerization reaction.

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