Heat-shrinkable polyethylene film of high clarity for the wrapping of groups of products
AssigneeSociete de Conditionnement et Industrie Societe Anonyme Ceisa
InventorMichel Grangette
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Abstract
The film comprises a central layer, composed of a mixture of radical low density polyethylene and of conventional linear polyethylene, sandwiched between two outer layers comprising at least 50% by weight of conventional linear polyethylene, with a relative density of 0.918-0.930, which are devoid of metallocene linear polyethylene, each of the outer layers having a thickness representing 5 to 25% of the total thickness of the film.
Claims8
A high clarity heat-shrinkable film comprising a central layer, composed of a mixture of radical low density polyethylene and of conventional linear polyethylene with a relative density of between 0.922 and 0.930, sandwiched between two outer layers, wherein each of the outer layers comprises at least 50% by weight, with respect to the total weight of the polymers present in the layer, of conventional linear polyethylene with a relative density of between 0.918 and 0.930 and is devoid of any metallocene linear polyethylene, each of the outer layers having a thickness representing from 5 to 25% of the total thickness of the film.
Dependencies are inferred from the claim text.