Compostable laminate structure
AssigneeGPCP IP Holdings LLC
InventorsGary Harold Knauf, Joseph Pounder
Life of this patent
Estimating the term…
Abstract
A compostable laminate for food wrap and method for making same. The wrap can include a first layer of paper material, a second layer of paper material, and a series of coatings between the paper materials. The coatings include a first flood coating having water and/or barrier properties, a second flood coating having water and/or oil barrier properties, and a third coating that only partially covers the second flood coating. None of the first, second and third coatings comprise a thermoplastic or polyolefin, and are made substantially from one or more biodegradable and/or compostable materials.
Claims25
A compostable laminate for food wrap, comprising:
- a first layer of paper material;
- a second layer of paper material;
- a first flood coating having water barrier properties that is disposed on the first layer of paper material;
- a second flood coating having oil barrier properties that is disposed on the first flood coating, the second flood coating also having water barrier properties;
- and
- a third coating that only partially covers the second flood coating, wherein the second layer of paper material is disposed on the third coating and wherein none of the first, second and third coatings comprise a thermoplastic or polyolefin.
A compostable laminate for food wrap, comprising:
- a first layer of paper material;
- a second layer of paper material;
- a first flood coating having water barrier properties that is disposed on the first layer of paper material;
- a second flood coating having oil barrier properties that is disposed on the first flood coating, the second flood coating also having water barrier properties;
- and
- a third coating that only partially covers the second flood coating, wherein the third coating is patterned to form a plurality of air pockets between the second flood coating and the second layer of paper material when the second layer of paper material is disposed directly on the third coating and wherein none of the first, second and third coatings comprise a thermoplastic or polyolefin.
A compostable laminate for food wrap, comprising:
- a first layer of paper material;
- a second layer of paper material;
- a first flood coating having oil barrier properties and water barrier properties that is disposed on the first layer of paper material;
- a second flood coating having water barrier properties that is disposed on the first flood coating;
- and
- a third coating that only partially covers the second flood coating, wherein the second layer of paper material is disposed on the third coating and wherein none of the first, second and third coatings comprise a thermoplastic or polyolefin.
Dependencies are inferred from the claim text.