Patent · US Expired

Polymerization catalyst and method

US4578440A · kind A · utility

10Cited by
12References
34Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 21, 1980
Grant dateMar 25, 1986
Priority date
Expiry dateAug 21, 2000

Classification

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

Abstract

A catalyst and method in which the catalyst is used with an aluminum cocatalyst in the polymerization and copolymerization of 1-olefins and is prepared by reacting a monofunctional organic silicon compound with silica, alumina, or the like followed by reacting the product of this reaction with a Group IIA organometallic compound or complex, then reacting this product with a halide or alkoxide of a metal of Group IVB or Group VB or mixtures thereof. If desired, the halide or alkoxide may be first reacted with the silicon compound reaction product before the reacting with the organometallic compound or complex.

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