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US 12,122,945 B2Granted
Multilayer films having foamed polyolefin based adhesive composition(s)
AssigneeEquistar Chemicals, LP
InventorsMick C. Hundley, Gang Zhang, William R. Podborny
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Abstract
A multilayer film having enhanced toughness and optical properties is provided. The multilayer film includes a base layer, an outer layer, and a tie layer between the base layer and the outer layer. The multilayer film can also include additional layers. Methods for making such multilayer films are also provided. Multilayer films according to the present invention are particularly useful packaging applications where rupture resistance and high clarity are desirable.
Claims15
A film comprising:
- a. a base layer;
- b. a first outer layer;
- and
- c. a first tie layer disposed between the first outer layer and the base layer, the first tie layer comprising a first foamed polyolefin-based adhesive composition, wherein the first foamed polyolefin-based adhesive composition comprises a LLDPE and a HDPE-g-MAH, wherein the HDPE-g-MAH is functionalized with maleic anhydride, and
- wherein the first foamed polyolefin-based adhesive composition comprises a dispersed phase of gas cells and wherein at least a portion of the gas cells are at least partially collapsed.
2 more elements
Dependencies are inferred from the claim text.