Polyalpha-olefin compositions and processes to produce the same

Details Polyalpha-olefin compositions and processes to produce the same Polyalpha-olefin compositions and processes to produce the same

C - Chemistry, Metallurgy

08

F

C08F 210/14 (2006.01) C10M 143/08 (2006.01)

Patent

CA 2615982

This invention relates to a polyalpha-olefin (and hydrogenated analogs thereof) comprising more than 50 mole % of one or more C5 to C24 alpha-olefin monomers where the polyalpha-olefin has: a) 40 mole % or more of mm triads, b) a Bromine number of Y or greater, where Y is equal to 89.92 * (V)' ~5863, whre V is the Kinematic Viscosity of the polyalpha-olefin measured at 100~C in cSt, and c) 1,2 disubstituted olefins present at 7 mole % or more, preferably having Z mole % or more of units represented by the formula: where j, k and m are each, independently, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, or 22, n is an integer from 1 to 350, and where Z = 8.420*Log(V)-4.048, where V is the kinematic viscosity of the polyalpha-olefin measured at 1000C in cSt This invention also relates to process to produce such polyalpha-olefins.

L'invention concerne un polyalphaoléfine (et ses analogues hydrogénés) comprenant plus de 50 en pourcentage molaire d'au moins un mononomère alphaoléfinique C5 à C24, le polyalphaoléfine comprenant ; (a) au moins 40 en pourcentage molaire de triades en mm, (b) un indice de brome Y ou plus élevé, Y étant égal à 89.92 * (V)' °5863, V représentant la viscosité cinématique du polyalphaoléfine mesurée à 100°C en cSt, et (c) 1,2 oléfines disubstitués présents dans un pourcentage molaire d'au moins 7, ayant de préférence un pourcentage molaire Z ou davantage d'unités représentées par la formule (I), dans laquelle j, k et m représentent chacun indépendamment 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, ou 22, n représente un entier compris entre 1 et 350, et dans laquelle Z = 8.420*Log(V)-4.048, V représentant la viscosité cinématique du polyalphaoléfine mesurée à 100°C en cSt. L'invention porte également sur un procédé de réalisation desdits polyalphaoléfines.

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