Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gebr De Trey AG
Original Assignee
Gebr De Trey AG
Publication date
Application grantedgrantedCritical
Publication of CA481978ApublicationCriticalpatent/CA481978A/fr
Process for preparing polymerization catalysts containing phosphoric acid and silico-phosphoric acid andthe application ofthese catalysts inthe polymerization of alkenes