Invention Grant
- Patent Title: Polyethylene compositions with improved sealing performance and tear strength
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Application No.: US17227490Application Date: 2021-04-12
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Publication No.: US11643530B2Publication Date: 2023-05-09
- Inventor: Dongming Li , Ching-Tai Lue , Qingyun Qian , Ling Ge , Gang Huang
- Applicant: ExxonMobil Chemical Patents Inc.
- Applicant Address: US TX Baytown
- Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee: ExxonMobil Chemical Patents Inc.
- Current Assignee Address: US TX Baytown
- Agency: ExxonMobil Chemical Patents Inc.—Law Department
- Main IPC: C08L23/06
- IPC: C08L23/06 ; C08J5/18

Abstract:
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/cm3 and 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/cm3 and 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/cm3 or greater, a melt index of about 0.5 dg/min to about 6 dg/min, and a Tw1−Tw2 value of about −25° C. or less.
Public/Granted literature
- US20210324185A1 POLYETHYLENE COMPOSITIONS WITH IMPROVED SEALING PERFORMANCE AND TEAR STRENGTH Public/Granted day:2021-10-21
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