Process for manufacturing olefin polymers and products...

Details Process for manufacturing olefin polymers and products... Process for manufacturing olefin polymers and products...

C - Chemistry, Metallurgy

08

L

C08L 23/02 (2006.01) C08F 10/00 (2006.01)

Patent

CA 2136742

A process for manufacturing bimodal olefin polymers and copolymers having a ratio between low molecular weight fractions and high molecular weight fractions within the range of 40:60-70:30, by mining under shear conditions 5-50 per cent by weight of a low molecular weight unimodal polyolefin having a molecular weight (M w) between 15,000-30,000, and 95-50 per teat by weight of a bimodal polyolefin having a ratio between low molecular weight fractions and high molecular weight fractions within the range of 30:70-55:45. According to the preferred embodiment there is used a multi- phase process comprising a loop reactor followed by a gas-phase reactor, wherein a part of the product coming out from the loop reactor is separated and combined with the bimodal product coming out from the gas-phase reactor.

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