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Improving Heavy Duty Sack Drop Performance at Low Temperature by Using ExxonMobil Chemical Metallocene Polyethylene Polymer Products

IP.com Disclosure Number: IPCOM000248440D
Publication Date: 2016-Nov-29
Document File: 4 page(s) / 122K

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The IP.com Prior Art Database

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Zhi-Yi Shen: AUTHOR [+4]

Abstract

This publication describes the effect of improving low temperature (e.g., -25 ℃ or below) bag drop performance of heavy duty sack (HDS) by applying ExxonMobil Chemical metallocene polyethylene (mPE) polymer products into film formulations. The conclusion was supported with various mPE grades, multiple blending partners, and different film thicknesses. The study offers a new concept and principle to design robust HDS film structures that are suitable under low temperature conditions.

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Improving Heavy Duty Sack Drop Performance at Low Temperature by Using ExxonMobil Chemical Metallocene Polyethylene Polymer Products

Zhi-Yi Shen, Yan-Bin Zhao, Dan-Ni Huang

Abstract:

This publication describes the effect of improving low temperature (e.g., -25 (

                                                    or below) bag drop performance of heavy duty sack (HDS) by applying ExxonMobil Chemical metallocene polyethylene (mPE) polymer products into film formulations. The conclusion was supported with various mPE grades, multiple blending partners, and different film thicknesses. The study offers a new concept and principle to design robust HDS film structures that are suitable under low temperature conditions.

Background

In PE film applications, such as HDS that are used in cold areas or freezing winter time, the low temperature bag drop performance (e.g., -25 ( or below

                      ) is regarded as an unique key property by customers compared to normal bag drop at room temperature. Since there might be unexpectable loss of film toughness under low temperature conditions, excellent bag drop performance at low temperature is required to guarantee the packaging integrity during transportation and loading/unloading process under extreme weather conditions. Typically, customers used to increase the film thickness in order to improve the overall film toughness. However, with traditional PE materials such as LDPE and LLDPE, the low temperature bag drop performance is still not ideal even by involving a higher film thickness.

It can be helpful to improve the low temperature bag drop performance by introducing ExxonMobil Chemical mPE grades into HDS film formulations. The positive effect can be found on HDS film with the combination of different mPE grades (e.g., ExceedTM mPE and EnableTM mPE) and with different film thickness. This finding brings a new concept and principle to design PE film structures with supreme toughness and outstanding bag drop performance under a low temperature environment.

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