Easy tear, nonoriented polypropylene packaging films

Details Easy tear, nonoriented polypropylene packaging films Easy tear, nonoriented polypropylene packaging films

B - Operations, Transporting

32

B

B32B 27/32 (2006.01) C08J 5/18 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2482861

A nonoriented film containing highly crystalline polypropylene, standard polypropylene and nucleating agents. The film has physical properties that are desirable for applications such as food wrappers and tampon overwrap, including good tearability, stiffness and memory. In addition, the nonoriented film is cost effective because the film achieves these physical properties without the step of strechting or orienting the film, as required for conventional polypropylene films used in food wrappers and tampon overwrap.

L'invention concerne un film non orienté renfermant du polypropylène hautement cristallin, du polypropylène classique et des agents de nucléation. Ce film a des propriétés physiques appropriées pour un certain nombre d'applications comme les emballages alimentaires et les emballages de tampons, y compris un arrachage, une rigidité et une mémoire de bonne qualité. En outre, ce type de film est rentable, offrant les propriétés considérées sans qu'il soit nécessaire de l'étirer ou de l'orienter, comme c'est le cas pour les films de polypropylène classique utilisés dans les applications susmentionnées.

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