Process for preparing polymers from 3-methylbut-1-ene

C - Chemistry – Metallurgy – 08 – F

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C08F 210/16 (2006.01) C08F 210/06 (2006.01)

Patent

CA 2657068

The present invention relates to a copolymer which contains 3-methylbut-1-ene as a comonomer and ethene or propene as a further monomer, wherein the proportion of 3-methylbut-1-ene incorporated is from 0.1 to 40 mol%, and to a process for preparing 5 such copolymers, wherein the polymerization is performed in the presence of a catalyst which has at least one cyclopentadienyl group.

La présente invention concerne un copolymère, comprenant comme comonomère le 3-méthylbut-1-ène et comme autre monomère l'éthène ou le propène. Selon l'invention, la proportion de 3-méthylbut-1-ène incorporé est comprise entre 0,1 et 40 % en moles. L'invention concerne également un procédé de fabrication de tels copolymères, la polymérisation étant réalisée en présence d'un catalyseur, ledit catalyseur comprenant au moins un groupement cyclopentadiényle.

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