Olefin polymerization catalyst system comprising mesoporous organosilica support

US10294312B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Matthew W. Holtcamp · Huffman, US
• Gregory S. Day · College Station, US
• David F. Sanders · Beaumont, US
• David C. Calabro · Bound Brook, US
• Quanchang Li
• Machteld M. W. Mertens · Boortmeerbeek, BE

Key dates

• Filing date: Dec 11, 2015
• Grant date: May 21, 2019
• Expiry date: Dec 11, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A catalyst system comprising a combination of: 1) an activator; 2) one or more metallocene catalyst compounds; 3) a support comprising an organosilica material, which may be a mesoporous organosilica material. The organosilica material may be a polymer of at least one monomer of Formula [Z1OZ2SiCH2]3 (I), where Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer and Z2 represents a hydroxyl group, a C1-C4 alkoxy group, a C1-C6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.