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US 2022/0022529 A1Published application
Paper Sheet and Method of Making It
AssigneeSchweitzer-Mauduit International, Inc.
InventorsJiayi Pan, Patrick Guilchet
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Abstract
The present invention relates to a biodegradable paper sheet for filter element comprising refined cellulose fibers and hydrophobic fibers.
Claims19
A paper sheet comprising cellulose fibers and hydrophobic fibers, wherein the cellulose fibers represent 10% to 90% by weight of the dry matter of the paper sheet, the hydrophobic fibers represent 10% to 90% by weight of the dry matter of the paper sheet and the cellulose fibers and the hydrophobic fibers represent at least 50% by weight of the dry matter of the paper sheet.
The paper sheet according to further comprising an additive.
Dependencies are inferred from the claim text.