Notice: Function _load_textdomain_just_in_time was called incorrectly. Translation loading for the wordpress-seo domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the init action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /var/www/html/wp-includes/functions.php on line 6260 Heat Sealable And Peelable Film - Nonwovens Industry

What are you searching for?

Sign in
Patents

Heat Sealable And Peelable Film

Author Image

By: Karen McIntyre

Editor, Nonwovens Industry

Patented is a multilayer, heat-sealable film including at least a first layer and a second heat-sealable layer. The second layer has a first surface adhered to the first layer and a second, opposed surface is intended to be heat sealed to another surface. The first layer comprises a mixture of a polypropylene and a second polymer immiscible in the polypropylene, to provide a weakened interface between the first layer and the second heat-sealable layer. The polypropylene constitutes more than 50% by weight of the mixture. The second layer is free of polybutylene and is formed predominantly of polymers selected from the group consisting of propylene-ethylene copolymers, ethylene-propylene-butene-1 terpolymers and propylene-butene-1 copolymers. The propylene in the copolymers and terpolymers constitute more than 50%, by weight, of such copolymers and terpolymers. The film with the second opposed surface of the heat-sealable layer is heat sealed to another surface having a peel strength of less than 250 grams per inch. Peel separation takes place at the interface between the second layer and the first layer and/or through the first layer. The peel strength is less than the peel strength of the second, opposed surface of the heat-sealable layer to the other surface. This maintains the seal integrity between the second heat-sealable layer and the other surface.

Add us as a preferred source on Google

Get the latest Nonwovens Industry news, insights and analysis in your Google Search and AI experiences.

Add Nonwovens Industry as a preferred source on Google (opens in a new tab)

Keep Up With Our Content. Subscribe To Nonwovens Industry Newsletters