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Film composition, film made from film composition and multilayer film comprising said film, and articles made therefrom

A composition and multi-layer film technology, applied in the direction of synthetic resin layered products, types of packaged items, packaged food, etc., can solve problems such as poor elastic recovery and poor holding force

Active Publication Date: 2018-10-12
DOW GLOBAL TECH LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Films made from certain ethylene-based polymers exhibit good holding power but poor elastic recovery
Films made from certain propylene-based polymers exhibit good elastic recovery but poor holding power

Method used

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  • Film composition, film made from film composition and multilayer film comprising said film, and articles made therefrom
  • Film composition, film made from film composition and multilayer film comprising said film, and articles made therefrom
  • Film composition, film made from film composition and multilayer film comprising said film, and articles made therefrom

Examples

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example

[0065] The following examples illustrate the invention but are not intended to limit the scope of the invention. The present examples demonstrate that films produced from film compositions according to the present invention exhibit a synergistic effect on elastic recovery and / or retention.

[0066] Five three-layer films (Inventive Examples 1-2 and Comparative Examples 1-3) were coextruded, each film comprising two skin layers, each of the same composition, and a core layer disposed between the two skin layers. The thickness of each film was 89 micrometers. Three-layer films were prepared using the polymer compositions shown in Table 1 for the skin and core layers. VERSIFY 2300 is a propylene-based polymer available from The Dow Chemical Company. ELITE AT 6101 and ELITE AT 6301 are ethylene-based polymers available from The Dow Chemical Company. ATTANE NG 4701G is an ethylene-based polymer commercially available from The Dow Chemical Company.

[0067] Table 2 and Table 3 p...

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Abstract

The present invention provides a film composition comprising 5 to 75% by weight ethylene / α-olefin interpolymer composition (LLDPE) and 25 to 95% by weight propylene / α-olefin interpolymer composition, and A film made from the film composition, wherein the film exhibits synergistic physical properties, namely holding force and elastic recovery.

Description

technical field [0001] The present invention relates to film compositions, films made from the film compositions, multilayer films comprising the films, and articles made therefrom. Background technique [0002] In the field of stretch hood films, both good holding power and elastic recovery are desirable features. Films made from certain ethylene-based polymers exhibit good holding power, but poor elastic recovery. Films made from certain propylene-based polymers exhibit good elastic recovery, but poor holding power. Such combinations of ethylene-based and propylene-based polymers generally exhibit lower holding power than propylene-based polymers and lower elastic recovery than propylene-based polymer films. Therefore, there remains a need for films that exhibit good retention and elastic recovery. Contents of the invention [0003] The invention is a film composition, a film made from the film composition, a multilayer film comprising the film, and an article made th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08L23/00
CPCC08L23/10B32B27/08B32B27/20B32B27/32C08L23/0815C08L23/16B32B2250/242B32B2250/40B32B2307/4026B32B2307/51B32B2439/00C08L2203/16C08L23/145
Inventor H·马C·赫尔南德斯J·萨维德拉
Owner DOW GLOBAL TECH LLC