C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 11/02 (2006.01) C07C 2/02 (2006.01) C07C 2/34 (2006.01) C07C 13/28 (2006.01)
Patent
CA 2100055
A process for dimerizing an alpha-olefin of the general formula: RCH = CH2, where R is alkyl, cycloalkyl, or cycloalkenyl with a carbon number ranging from 1 to 30, to a vinylidene olefin comprises contacting said alpha-olefin at temperature between -60 °C and 280 °C with a catalyst comprising (a) a metallocene having the general formula (cyclopentadienyl) nMY4-n wherein n = 2 or 3, M is titanium, zirconium of hafnium and each Y is individually selected from hydrogen, C1-C5 alkyl, C6-C20 aryl, C2-C20 alkoxy, C2-C20 ester, and halogen, (b) an alkylaluminoxane other than methylaluminoxane, and (c) trimethylaluminum.
Méthode pour dimériser une alpha-oléfine de formule générale RCH = CH2, où R est un alkyle, cycloalkyle ou cycloalcényle, avec 1 à 30 atomes de carbone, en une oléfine vinylidénique, consistant à amener en contact l'alpha-oléfine à une température se situant entre 60 et 280 degrés C, en présence d'un catalyseur renfermant : a) un métallocene de formule générale (cyclopentadiényl)nMY4n, où n = 2 ou 3, M est du titane, du zirconium ou du hafnium, Y étant choisi chacun individuellement parmi un hydrogène, un halogène, un alkyle C1-C5, aryle C6-C20, alcoxy C2-C20 et ester C2-C20; b) un alkylaluminoxane autre que le méthylaluminoxane; c) le triméthylaluminum.
Sangokoya Samuel A.
Wu Feng-Jung
Ineos Usa Llc
Macrae & Co.
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