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Multilayer Film

IP.com Disclosure Number: IPCOM000248013D
Publication Date: 2016-Oct-17

Publishing Venue

The IP.com Prior Art Database

Related People

Nilesh C. Shah: AUTHOR [+5]

Abstract

The invention relates to a film prepared from polyethylene (PE) resins. More specifically, it relates to the use of a combination involving a sealant layer comprising of a metallocene PE and its blend performance. The structures of the invention are particularly useful for optimizing a combination of different products to have an advantage on improved sealing and mechanical performance for multilayer films.

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Multilayer Film

The invention relates to a film prepared from polyethylene (PE) resins. More specifically, it relates to the use of a combination involving a sealant layer comprising of a metallocene PE and its blend performance. The structures of the invention are particularly useful for optimizing a combination of different products to have an advantage on improved sealing and mechanical performance for multilayer films.

Background

‐ Metallocene polyethylene is used in variety of applications for having advantages on mechanical, optical or sealing performance. However, different compositions are proposed to be used in multiple layers to have such advantages. Usually, the addition of metallocene polyethylene in a sealant layer increases the performance of film in terms of toughness and sealing properties.

‐ Many packaging applications, e.g., oil products, dairy products, or alcohol product, need low temperature during packaging operation compared to conventional products.

‐ The films or laminates can be used for packaging of various products which are based on monolayer or multilayer polyolefin or multilayer barrier films.

‐ The requirement becomes even more critical on new generation packaging machines which operate at higher packaging line speeds (packs per minute)

‐ Therefore, the above challenges create an opportunity for the use of metallocene polyethylene with lower densities to reduce seal initiation temperature which enhances packaging operation performance.

‐ At the same time, one has to also maintain the balance of stiffness and toughness using lower density polyethylene products to meet the technical requirement of product.

‐ Cost is also an important parameter while developing films with low seal initiation temperature and, hence, it is important to look at the most beneficial components and blends to arrive at optimum cost and performance balance.

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