Patent · US Expired

Process for the reduction of reactor fouling

US6268442A · kind A · utility

3Cited by

33References

10Claims

0Family size

Assignee

Borealis A/S · DK

Inventors

Bill Gustafsson · Stenungsund, SE
Ruth Dammert · Stenungsund, SE
Jussi Laurell · Porvoo, FI
Erik Van Praet · Veltem-Beisem, BE

Key dates

Filing date	Sep 8, 1999
Grant date	Jul 31, 2001
Priority date	—
Expiry date	Sep 8, 2019

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F10/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for the reduction of reactor fouling at radical initiated high pressure polymerisation of ethylene (co)polymers is described. The process is characterised in that an adhesion reducing silicon containing compound is added to the polymerisation reactor, preferably in an amount of 0.001-3% by weight, based on the amount of polymer produced. Preferably the silicon containing compound is hexadecyl trimethoxy silane.

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