Method for manufacturing high viscosity polyalphaolefins...

C - Chemistry – Metallurgy – 08 – L

Patent

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Details

C08L 23/02 (2006.01) C07C 2/22 (2006.01) C07C 2/26 (2006.01) C08F 2/00 (2006.01) C08F 4/00 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2482896

Method of continuously manufacturing a high viscosity polyalphaolefin product by introducing a monomer and an ionic liquid catalyst together into a reaction zone while simultaneously withdrawing from the reaction zone a reaction zone effluent that contains the high viscosity polyalphaolefin. The reaction zone is operated under reaction conditions suitable for producing the high viscosity polyalphaolefin product. The preferred high viscosity polyalphaolefin has a kinematic viscosity exceeding about 8 cSt and is the reaction product of the trimerization, oligomerization, or polymerization of an alpha olefin or a mixture of one or more product thereof. The high viscosity polyalphaolefins are useful as lubricants or lubricant additives.

La présente invention concerne un procédé de production continue d'un produit poly-alpha-oléfinique à haute viscosité en introduisant conjointement un monomère et un catalyseur liquide ionique dans une zone de réaction tout en enlevant en même temps de la zone de réaction un effluent de zone de réaction contenant le poly-alpha-oléfine à haute viscosité. La zone de réaction est utilisée dans des conditions de réaction convenables pour produire le produit poly-alpha-oléfinique à haute viscosité. Le poly-alpha-oléfine à haute viscosité préféré présente une viscosité cinématique dépassant environ 8 cSt et constitue le produit réactionnel issu de la trimérisation, oligomérisation ou polymérisation d'un alpha-oléfine ou d'un mélange d'un ou plusieurs de ses produits. Les poly-alpha-oléfines selon l'invention sont utilisables en tant que lubrifiants or additifs lubrifiants.

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