Repulpable corrugated boxboard
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United States of America Patent
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Nov 7, 2000
Grant Date -
N/A
app pub date -
Mar 2, 1998
filing date -
Mar 2, 1998
priority date (Note) -
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Abstract
A coating composition for the linerboard of corrugated paperboard provides water and grease resistance but is water vapor permeable, and thus permits a different mode of manufacture of corrugated paperboard when aqueous adhesives are employed in the assembly of the linerboards and corrugated medium; in particular the linerboards may be coated with the coating composition prior to assembly of the corrugated paperboard because the water vapor permeable coating permits escape of the water of the aqueous adhesive, during drying of the assembled components of the corrugated paperboard; the coating composition employs a styrene-acrylate copolymer and a C.sub.14 -C.sub.18 fatty acid complex of a metal ion having an oxidation state of at least 3, such as chromium.
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