Ziegler-natta catalyst systems containing specific organosilicon compounds

US5773537A · kind A · utility

Assignee

• BASF SE

Inventors

• Patrik Mueller · Kaiserslautern, DE
• Klaus-Dieter Hungenberg · Birkenau, DE
• Juergen Kerth · Eisenberg (Pfalz), DE
• Ralf Zolk · Bad Dürkheim, DE

Key dates

• Filing date: Dec 28, 1995
• Grant date: Jun 30, 1998
• Expiry date: Dec 28, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F10/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Catalyst systems of the Ziegler-Natta type contain, as active components PA0 a) a titanium-containing solid component in whose preparation a titanium compound, a compound of magnesium, a halogenating agent and an electron donor component are used, PA0 b) an aluminum compound and PA0 c) as a further electron donor component, an organosilicon compound of the formula (I) EQU R.sup.1 R.sup.2 Si(OR.sup.3).sub.2 (I) where R.sup.1 is C.sup.1 -C.sub.10 -alkyl or C.sub.3 -C.sub.8 -cycloalkyl, excluding sec-butyl, R.sup.2 is sec-butyl and R.sup.3 is C.sub.1 -C.sub.8 -alkyl. The catalyst systems are particularly suitable for the preparation of polymers of C.sub.2 -C.sub.10 -alk-1-enes.