Patent · US Expired

Process for polymerizing propylene

US4357452A · kind A · utility

4Cited by
7References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 16, 1980
Grant dateNov 2, 1982
Priority date
Expiry dateJul 16, 2000

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F10/06
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Propylene is polymerized in the presence of a catalytic system of the type which comprises a solid titanium trichloride-based complex serving as a catalyst, said complex having an atomic ratio of aluminum to titanium in the range of below 0.15:1 and containing a complexing agent, and an organic aluminum compound of the general formula, AlR.sup.1.sub.n Cl.sub.3-n wherein R.sup.1 represents an n-propyl group or an n-hexyl group and n is a value of 1.95-2.10. The catalytic system may further comprise an electron-donor compound as a third catalytic component.

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