Wet coating compositions for paper substrates, paper substrates coated with the same and process for coating a paper substrate with the same

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United States of America Patent

PATENT NO 9840642
SERIAL NO

15311662

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Abstract

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A wet coating composition useful for coating a cellulosic fiber-based substrate is provided. The composition includes two aqueous emulsions. The first emulsion includes an oxidized paraffin/polyethylene wax and the second emulsion includes an ethylene/acrylic acid copolymer wax, ethylene/acrylic amide copolymer wax, ethylene/acrylic acid/acrylic amide copolymer wax or a mixture thereof. The oxidized paraffin/polyethylene wax has a surface energy less than or equal to 2 m N/m being substantially dispersive energy. The wet coating composition when dried forms a coating having a surface energy ranging from 20 to 60 m N/m being the sum of dispersive and polar energies. A process for treating a cellulosic fiber-based substrate with the wet coating composition, a substrate coated and articles including the coated substrate are also described. The process involves a heating step to allow migration of the coating towards a core of the cellulosic fiber-based substrate.

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Patent Owner(s)

Patent OwnerAddress
CASCADES SONOCO INC457 BOUL MARIE-VICTORIN KINGSEY FALLS QUEBEC J0A 1B0

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mongrain, Yvon Lavaltrie, CA 9 39
Turgeon, Guillaume Sainte-Genevieve-de-Berthier, CA 6 15

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