Patent · US Expired

Catalyst and methods

US4378304A · kind A · utility

28Cited by
10References
44Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 3, 1981
Grant dateMar 29, 1983
Priority date
Expiry dateJun 3, 2001

Classification

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

Abstract

A catalyst, a method of preparing a catalyst and method of polymerizing olefins with the catalyst in which the catalyst is prepared by reacting a support with a Group IIA organometallic compound essentially free of aluminum alkyls and reacting this product with water or a hydrocarbyl alcohol, then reacting this product with, for example, titanium tetrachloride, followed if necessary by removing unreacted ingredients and finally activating by contacting with a cocatalyst in the absence of oxygen and moisture.

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