Polyolefin laminate cling films
AssigneeThe Dow Chemical Company
InventorsGeorgia M. Huff, Kaelyn C. Koch, Mark W. Murphy, Christopher J. Thomas
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AssigneeThe Dow Chemical Company
InventorsGeorgia M. Huff, Kaelyn C. Koch, Mark W. Murphy, Christopher J. Thomas
Estimating the term…
A wrap-packaging film having differential cling is provided by a film laminate, said film laminate comprising at least two layers, at least one of which layers is an outer reverse layer comprising a linear very low density ethylene copolymer (LVLDPE) having a critical density of less than about 0.915 g/cc which contains a tackifier in an amount sufficient to impart thereto an effective level of cling properties, at least one of which layers comprises an obverse layer of an olefin polymer or copolymer, such as a linear low density ethylene copolymer (LLDPE) which has a critical density of not less than 0.916 g/cc which has little or no cling, and wherein the difference in density between the reverse layer and the obverse layer is at least about 0.004 g/cc, the said differential cling properties being manifested in the higher level of cling of the LVLDPE reverse layer as compared to that of the obverse layer.
A multiple layer film laminate which is useful as a cling-wrap packaging material, said film laminate comprising
In a laminated film comprising at least two layers, said film being adapted for use as a cling-wrap packaging material wherein one of the outer layers has greater cling than the other outer layer,
A multiple layer film laminate which is useful as a cling-wrap packaging material, said film laminate comprising
Dependencies are inferred from the claim text.