C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 2/00 (2006.01) C08F 10/00 (2006.01)
Patent
CA 2171724
This invention relates to a short residence time polymerization reactor operating in periodic mode with multiple catalyst feeds and staged monomer feedsoperating to minimize off specification product and optimize and control molecular weight and molecular weight distribution of the polymer produced. This inventioncontemplates the polymerization of olefins particularly alpha-olefins, particularly ethylene and propylene into homo, co and terpolymers.
L'invention concerne un réacteur de polymérisation à temps de séjour court fonctionnant en mode périodique avec des alimentations multiples en catalyseur et des charges de monomères échelonnées, ce qui limite l'obtention de produits hors spécifications et optimise et module le poids moléculaire et la répartition des poids moléculaires du polymère produit. Cette invention concerne la polymérisation des oléfines, et notamment des alpha-oléfines, en particulier l'éthylène et le propylène, en homo-, co- et terpolymères.
Borden Ladner Gervais Llp
Exxon Chemical Patents Inc.
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