Heterophasic propylene copolymers
AssigneeBasell Poliolefine Italia S.r.l.
InventorsFabrizio Piemontesi, Alessandro Mignogna, Dario Liguori, Giampiero Morini, Gianni Vitale
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AssigneeBasell Poliolefine Italia S.r.l.
InventorsFabrizio Piemontesi, Alessandro Mignogna, Dario Liguori, Giampiero Morini, Gianni Vitale
Estimating the term…
A polypropylene composition made from or containing: A) from 60 to 90 wt %, based upon the total weight of the polypropylene composition, of a fraction insoluble in xylene at 25° C., is made from or containing more than 80% wt of propylene units, and B) from 10 to 40 wt %, based upon the total weight of the polypropylene composition, of a fraction soluble in xylene at 25° C. is made from or containing a copolymer of propylene and ethylene having an average content of ethylene derived units from 30.0 wt % to 55.0 wt %, wherein the fraction when subjected to GPC fractionation and continuous IR analysis for determining the ethylene content of the eluted fractions (GPC-IR analysis), shows that the content of ethylene increases along with the Mw for fractions having Mw higher than the average.
A polypropylene composition comprising:
Dependencies are inferred from the claim text.