Polypropylene compositions methods of making the same
AssigneeExxonMobil Chemical Patents Inc.
InventorsChon Y. Lin, Michael C. Chen, Aspy K. Mehta, Rajan K. Chudgar
Life of this patent
Estimating the term…
Abstract
This invention relates to propylene homopolymer compositions obtained from metallocene catalysis wherein the polymer has a molecular weight distribution (Mw/Mn) in the range of from 4.0 to 20.0. The propylene homopolymer composition may be prepared in a multiple stage polymerization process using the same metallocene component in at least two stages. The composition may comprise isotactic homopolymer in one embodiment, and have a hexane extractables of less than 2 wt % in one embodiment. The composition is useful in making films.
Claims10
A biaxially oriented film comprising a propylene polymer composition comprising propylene homopolymer, the composition having a molecular weight distribution greater than 4.0, and hexane extractables of less than 2.0 wt %.
Dependencies are inferred from the claim text.