Exxonmobil Chemical Patents Inc.

Ling Ge

Robert J Wittenbrink

Ching-Tai Lue

Dongming Li

Yong Yang

Caiguo Gong

Gregory K Hall

Xiao-Chuan Wang

Zhen-Yu Zhu

Xin Hao Cai

Keran Chen

LeiLei Ma

Jean-Marc C De Koninck

Qingyun Qian

Embodiments relate to polyolefin compositions containing one or more high-density polyethylenes (HDPEs) and linear low-density polyethylenes (LLDPEs) and methods for forming the same. The polyolefin composition contains about 40 wt % to about 60 wt % of HDPE and about 40 wt % to about 60 wt % of LLDPE, by weight of the polyolefin composition. The HDPE has a density of greater than 0.93 g/cmand a melt index of about 0.2 dg/min to about 10 dg/min. The LLDPE has a density of less than 0.915 g/cmand a melt index of about 0.2 dg/min to about 10 dg/min. The polyolefin composition has a density of about 0.91 g/cmor greater, a melt index of about 0.5 dg/min to about 6 dg/min, and a T&#x2212;Tvalue of about &#x2212;25&#xb0; C. or less.

Polyethylene compositions with improved sealing performance and tear strength

A film, preferably, a multi-layered film, including a polymer composition, wherein the polymer composition includes: within a range from 1 wt % to 25 wt % of a cyclic olefin copolymer based on the weight of the polymer composition, and within a range from 75 wt % to 99 wt % (the remainder of material) of a polyethylene based on the weight of the polymer composition, wherein the cyclic olefin copolymer has a glass transition temperature (T.sub.g) of at least 80.degree. C. The films may be used in shrink packaging application.

Polyethylene films and methods of making the same

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Shanghai, China

Ling Ge