Resin impregnated board
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United States of America Patent
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Nov 18, 1986
Issued Date -
N/A
app pub date -
Aug 26, 1985
filing date -
Apr 30, 1984
priority date (Note) -
Expired
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Abstract
Uniformly impregnated liner and medium for making corrugated board are prepared by using a urea-aldehyde impregnating composition to impregnate board in-line and a process where the coated board is treated with an aqueous primer and fully cured to provide board having resin free surfaces.
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