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.
Type:
Grant
Filed:
June 20, 2002
Date of Patent:
August 31, 2004
Assignee:
ExxonMobil Chemical Patents Inc.
Inventors:
Chon Y. Lin, Michael C. Chen, Aspy K. Mehta, Rajan K. Chudgar