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US 2025/0163645 A1Published application
A fluorochemical-free grease-barrier paper
AssigneeBillerud Aktiebolag (publ)
InventorsLars Wahlstrom, Per Iversen, Erik Westerholm
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Abstract
The present disclosure provides a fluorochemical-free grease barrier paper comprising a base paper, wherein: a first side of the base paper is impregnated with a first composition comprising oxidized starch, dextrin, a crosslinker and a wax, such as alkyl ketene dimer (AKD); and a second side of the base paper is impregnated with a second composition comprising oxidized starch, dextrin and a crosslinker.
Claims20
A fluorochemical-free grease barrier paper comprising a base paper, wherein:
- a first side of the base paper is impregnated with a first composition comprising oxidized starch, dextrin, a crosslinker and a wax;
- and
- a second side of the base paper is impregnated with a second composition comprising oxidized starch, dextrin and a crosslinker.
Dependencies are inferred from the claim text.