Activating supports

US9175106B2 · kind B2 · utility

Assignee

• INEOS EUROPE AG · CH

Inventors

• Michel Clarembeau · Temploux, BE
• Gaelle Pannier · Brussels, BE
• Stephane Paye · Leuze, BE

Key dates

• Filing date: Dec 14, 2011
• Grant date: Nov 3, 2015
• Expiry date: Dec 14, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2410/07
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Activating supports are prepared by (a) combining (i) fluorine-containing compounds having a reactive group and (ii) an organometallic compound, (b) contacting a porous mineral oxide support material with the mixture from step (a), (c) heating the functionalized support from step (b) under an inert gas and then under an atmosphere comprising oxygen, and (d) recovering the activating support. The fluorine-containing compounds may have the formula R(Fn)-X wherein R is hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl with up to 20 non-hydrogen atoms, n is 1-41, X is OH, SH or NR′2, R′ is hydrogen or hydrocarbyl. The activating supports are useful in combination with transition metal catalysts for polymerization of olefins, e.g., with metallocene complexes. Preparation of the activating supports is easier and more economic than prior methods and provides for supported polymerization catalyst systems having excellent activities. Polymers produced using the activating supports exhibit improved rheology properties.