FLOUROCARBON FREE AND BIOBASED OIL AND WATER BARRIER MATERIALS
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United States of America
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Issued Date -
Feb 20, 2025
app pub date -
Nov 5, 2024
filing date -
Nov 5, 2024
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Abstract
An aqueous polyelectrolyte (PEC) composition for application to a fibre based material for use in obtaining a barrier coating resistant to oil and water, comprises from 0.1 to 20% (w/w) of carboxymethyl cellulose (CMC) and from 0.1 to 20% of cationic starch (CS), providing PECs with a charge ratio of ≤1; from 1 to 20% (w/w) of a plasticizer; and from 1 to 15% (w/w) of a pH adjusting agent selected from an acid, a buffering system and a base.
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