Exxonmobil Chemical Patents Inc.

Gregory J Smith-Karahalis

Jian Yang

Dongming Li

Kevin A Stevens

Yan Jiang

This invention relates to a polyethylene composition, and films therefrom, comprising at least 65 wt % ethylene derived units and from 0.1 to 35 wt % of C-Colefin comonomer derived units, where the polyethylene composition has: a) an RCI,m of less than 85 kg/mol; b) a Tw&#x2212;Twvalue of from &#x2212;15 to &#x2212;40&#xb0; C.; and c) an Mw/Mwvalue of less than 1.5 where the film has a) a heat seal initiation temperature of X &#xb0; C. or less at 5 N of force, where X=0.0015&#xd7;Y(psi)+62.6 (where Y is the average 1% Secant modulus ((MD+TD)/2)) of the film; b) a dart drop impact of 300 g/mil or more; c) an MD Elmendorf tear of 230 g or more; and d) average 1% Secant modulus ((MD+TD)/2) of 20,000 psi or more.

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Houston, TX, United States of America

Gregory J Smith-Karahalis