Process of preparation of catalytic support and supported metallocene catalysts for production of homopolymers and copolymers of ethylene with alfa - olefins, of high and ultra high molecular weight and with broad molecular weight distribution in slurry, bulk and gas phase processes and products thereof
AssigneeBraskem S.A.
InventorsMarcia Silva Lacerda Miranda, Fernanda Oliveira Vieira da Cunha
Life of this patent
Estimating the term…
Abstract
The present invention relates a process for the preparation of catalytic support and the supported metallocene catalysts used in the production of ethylene homopolymers and ethylene copolymers with α-olefins, of high and ultra high molecular weight with broad molecular weight distribution, in gas or liquid phase polymerization processes, the latter being in slurry, bulk or suspension, and the products obtained from these processes.
Claims10
Ethylene homopolymers and copolymers with alfa-olefins of high and ultra molecular weight, wherein said homopolymers and copolymers are obtained from the reaction of the supported metallocene catalyst and an organometallic compound of the groups 2 or 13 of the Periodic Table, where the molar ratio Al/M ranges from 30:1 to 500:1, in the presence of ethylene and alternatively an α-olefin.
Dependencies are inferred from the claim text.