Back to results
US 12,370,785 B2Granted
Multilayer film
AssigneeBerry Global, Inc.
InventorsMichael A. Kinnan, Bryan S. Gillespie, Brooke D. Kitzmiller
Life of this patent
Estimating the term…
Abstract
A multilayer film includes a first skin layer, a second skin layer, and a core layer. The core layer includes at least two lanes of material. Each of the lanes of material of the core layer contacts each of the first skin layer and the second skin layer.
Claims20
A multilayer stretch film for wrapping a product, the multilayer stretch film comprising:
- a cling layer adapted to adhere to an outer surface of a product in response to the multilayer stretch film being wrapped around the product,
- a release layer adapted to release from a neighboring layer of the multilayer stretch film, the release layer spaced apart vertically from the cling layer along a vertical axis, and
- a core layer located between the cling layer and the release layer, the core layer comprising a first lane made of a first composition and a second lane made of a second composition adjacent each side of the first lane along a longitudinal axis perpendicular to the vertical axis, and the first composition is different than the second composition,
- wherein the core layer has a thickness along the vertical axis and each of the first lane and the second lane extend the thickness of the core layer along the vertical axis,
- wherein a first extrusion interface is formed between the release layer and the core layer and a second extrusion interface is formed between the core layer and the cling layer.
2 more elements
A multilayer stretch film for wrapping a product, the multilayer stretch film comprising:
- a cling layer,
- a release layer spaced apart vertically from the cling layer along a vertical axis,
- a core layer comprising a first lane made of a first composition and a second lane made of a second composition adjacent each side of the first lane along a longitudinal axis perpendicular to the vertical axis, and the first composition is different than the second composition,
- a first bulk layer located between the cling layer and the core layer along the vertical axis, and
- a second bulk layer located between the release layer and the core layer along the vertical axis,
- wherein the core layer has a thickness along the vertical axis and each of the first lane and the second lane extend the thickness of the core layer along the vertical axis.
3 more elements
A multilayer stretch film comprising:
- a first skin layer,
- a second skin layer spaced apart vertically from the first skin layer along a vertical axis, and
- a core layer located between the first skin layer and the second skin layer, the core layer comprising a first lane made of a first composition and a second lane made of a second composition adjacent each side of the first lane along a longitudinal axis perpendicular to the vertical axis, and the first composition is different than the second composition,
- wherein the core layer has a thickness along the vertical axis and each of the first lane and the second lane extend the thickness of the core layer along the vertical axis,
- wherein a first extrusion interface is formed between the second skin layer and the core layer and a second extrusion interface is formed between the core layer and the first skin layer.
2 more elements
Dependencies are inferred from the claim text.