Patent · US Expired

Polymerization processes

US5965675A · kind A · utility

35Cited by
3References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 16, 1997
Grant dateOct 12, 1999
Priority date
Expiry dateMay 16, 2017

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F110/02
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A polymerization process is provided comprising contacting under polymerization conditions a catalyst, a taming agent, ethylene and optionally a comonomer, wherein the catalyst comprises chromium oxide, titanium oxide and an inorganic refractory oxide, wherein the taming agent is selected from the group consisting of water, alcohols, aldehydes, ketones, esters, and organic acids and mixtures thereof. The process is especially suited for polymerizing ethylene resins suitable for blow molding use.

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