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US 2026/0110143 A1Published application
Foil-free, low moisture vapor transmission rate packaging material
OwnerAlex Stuplichinventor
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Abstract
The present invention is aimed at solving the aforementioned problem of the prior art by providing a food packaging material comprising a paper substrate having a first side and a second side, the second side being opposite to the first side, wherein the paper substrate is coated on at least the first or the second side with a coating comprising wax and a copolymer selected from styrene butadiene copolymer and/or styrene acrylic copolymer.
Claims20
A food packaging material comprising:
- a paper substrate having a first side and a second side,
- the second side being opposite the first side,
- wherein the paper substrate comprises from about 15 to about 55 wt. % of hardwood fibers and from about 45 to about 85 wt. % of softwood fibers based on the total weight of the paper substrate;
- wherein the paper substrate is coated on at least the first side or the second side with a coating comprising wax and a copolymer;
- and
- wherein a basis weight of the coating is at least 2 lb/3000 ft2 or 3.25 g/m2.
3 more elements
Dependencies are inferred from the claim text.