Preparation of polymers of C.sub.2 -C.sub.12 -alkenes with the addition of a reaction retarder

US6127495A · kind A · utility

Assignee

• BASF SE

Inventors

• Joachim Rosch · Ludwigshafen, DE
• Wolfgang Bidell · Mutterstadt, DE
• Franz Langhauser · Bad Dürkheim, DE

Key dates

• Filing date: May 30, 1997
• Grant date: Oct 3, 2000
• Expiry date: May 30, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/904
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymers of C.sub.2 -C.sub.12 -alkenes are prepared at from -50 to 300.degree. C. and from 0.5 to 3000 bar in the presence of a catalyst system by a process in which a compound of the general formula I ##STR1## where M.sup.1 is boron, aluminum, gallium, indium or thallium and PA1 R.sup.1 and R.sup.2 are each hydrogen, C.sub.1 -C.sub.10 -alkyl, C.sub.6 -C.sub.15 -aryl, alkylaryl or arylalkyl each having 1 to 10 carbon atoms in the alkyl radical and 6 to 20 carbon atoms in the aryl radical, or 5- to 7-membered cycloalkyl which in turn may carry C.sub.1 -C.sub.10 -alkyl as a substituent, or R.sup.1 and R.sup.2 together form a cyclic group, is added of 4 to 15 carbon atoms.