Thermoplastic films for use in stretch/cling applications
AssigneeExxon Chemical Patents Inc.
InventorPaul M. German
Life of this patent
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Abstract
A thermoplastic film is provided which is especially suitable for use in stretch/.cling applications such as, for example, the bundling, packaging and unitizing of foods and other goods. The film comprises a cling layer comprising a polymer of at least ethylene and acrylate, preferably without a tackifying additive. The film further comprises a slip layer comprising a polyolefin preferably including an anticling (slip and/or antiblock) additive. Preferred polyolefins include linear low density polyethylene and polypropylene.
Claims25
A thermoplastic cling film comprising a cling layer, said cling layer comprising a polymer of two or more monomers, wherein a first monomer comprises ethylene and a second monomer comprises an acrylate, wherein said polymer has a acrylate content of about 20% to about 40% by weight based upon the weight of said polymer.
A thermoplastic cling film, said cling film comprising a polymer of two or more monomers, said first monomer comprising ethylene, said second monomer comprising an acrylate, said polymer having an acrylate content of between about 20% to about 40% by weight based upon the weight of the said polymer, where the polymer is essentially free of tackifying or cling additives, and where the acrylate of said polymer comprises methyl acrylate, ethyl acrylate, or n-butyl acrylate.
A thermoplastic cling film comprising a cling layer, said cling layer comprising a polymer of two or more monomers, wherein a first monomer comprises ethylene and a second monomer comprises an acrylate, said polymer having an acrylate content of about 2% to about 40% by weight based upon the weight of said polymer, wherein said cling film comprises said polymer without a tackifying additive.
Dependencies are inferred from the claim text.