Catalyst comprising bridged indeno[1,2-b]indolyl metal complex

C - Chemistry – Metallurgy – 08 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08F 4/6592 (2006.01) C08F 4/02 (2006.01) C08F 210/16 (2006.01)

Patent

CA 2494611

A process for making ethylene copolymers is disclosed. Ethylene copolymerizes with an .alpha.-olefin in the presence of a catalyst system comprising an activator and a silica-supported, bridged indenoindolyl metal complex having "open architecture." The supported complex incorporates comonomers with exceptional efficiency, and the process gives ethylene copolymers having high molecular weights (Mw > 100K) and very low densities (< 0.910 g/cm3). Open architecture catalysts that include bridging through the indolyl nitrogen of the indenoindolyl framework are also described. Additionally, supported and unsupported indeno[1,2-b]indolyl catalysts provide exceptional activities in the preparation of elastomeric polypropylene and ethylene copolymers.

L'invention concerne un procédé de fabrication de copolymères d'éthylène. L'éthylène se copolymérise avec une .alpha.-oléfine en présence d'un système catalyseur contenant un activateur et un complexe métallique indénoindolyl ponté, supporté par de la silice, présentant une architecture ouverte. Le complexe supporté intègre des comonomères de façon très efficace, et le procédé selon l'invention permet d'obtenir des copolymères d'éthylène présentant des poids moléculaires élevés (Mw > 100K) et des densités faibles (< 0.910 g/cm?3¿). L'invention concerne également des catalyseurs à architecture ouverte contenant un pontage par indolyl azote de la structure indénoindolyl. Par ailleurs, des catalyseurs indéno[1,2-b]indolyl supportés ou non supportés offrent des activités exceptionnelles dans la préparation de copolymères élastomères de polypropylène et d'éthylène.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Catalyst comprising bridged indeno[1,2-b]indolyl metal complex does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Catalyst comprising bridged indeno[1,2-b]indolyl metal complex, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalyst comprising bridged indeno[1,2-b]indolyl metal complex will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1400001

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.