High activity polyethylene catalysts

C - Chemistry – Metallurgy – 08 – F

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C08F 4/646 (2006.01) B01J 31/12 (2006.01) C08F 4/603 (2006.01) C08F 10/02 (2006.01) C08F 210/02 (2006.01) C08F 210/16 (2006.01) C08L 83/00 (2006.01)

Patent

CA 2182093

An ethylene polymerization catalyst is prepared by impregnating a porous support, such as silica, with an organomagnesium compound such as a dialkylmagnesium compound, contacting the magnesium-containing support with a silane compound which is free of hydroxyl groups, such as tetraalkoxysilanes, e.g. tetraethyl orthosilicate, and incorporating a transition metal component, such as titanium tetrachloride, in a specific ratio to the magnesium and silane components. Activation of this catalyst precursor with dimethylaluminum chloride as a cocatalyst results in a catalyst system which is effective for the production of ethylene copolymers with multimodal molecular weight distributions.

On prépare un catalyseur de polymérisation à base d'éthylène par imprégnation d'un support poreux, tel que de la silice, avec un composé de magnésium organique, tel qu'un composé de magnésium de dialkyle, par mise en contact du support contenant du magnésium avec un composé de silane exempt de groupes hydroxyle, tel que tétraalcoxysilane, par exemple, orthosilicate de tétraéthyle et par incorporation d'un constituant de métal de transition, tel que tétrachlorure de titane, selon une quantité spécifique par rapport aux constituants de magnésium et de silane. L'activation de ce précurseur de catalyseur avec du chlorure de diméthylaluminium en tant que cocatalyseur, permet d'obtenir un système catalyseur efficace dans la production de copolymères d'éthylène présentant des répartitions de poids moléculaires à modes multiples.

LandOfFree

Say what you really think

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

Rating

High activity polyethylene catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High activity polyethylene catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High activity polyethylene catalysts will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1757757

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