Patent · US Expired

Polymerization process

US4012574A · kind A · utility

31Cited by
6References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 13, 1975
Grant dateMar 15, 1977
Priority date
Expiry dateJan 13, 1995

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F210/16
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Process for the dispersion polymerization or copolymerization of olefins, especially ethylene alone or with an .alpha.-olefin, which is conducted in the presence of a surface-active compound containing one or more perfluorocarbon groups and, optionally, one or more hydrophilic groups, to reduce fouling of the reactor with adherent polymer particles. Particularly effective when olefins are polymerized with supported transition metal hydrocarbyl catalysts in non-polar hydrocarbon diluents.

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