Process for producing at least one ply of a paper or paperboard product and a paper or paperboard product

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United States of America Patent

PATENT NO 9988765
APP PUB NO 20170121913A1
SERIAL NO

15318132

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Abstract

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The present invention relates to a process for producing at least one ply of a paper or paperboard product which process comprises the steps of; subjecting cellulosic fibers to heat treatment wherein the fibers are treated at a high dry content and at an increased temperature, preparing a slurry comprising said heat treated fibers, forming a web of said slurry and, dewatering said web whereby a ply of said product is formed. The present invention further relates to a paper or paperboard product produced according to the process.

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Patent Owner(s)

Patent OwnerAddress
STORA ENSO OYJP O BOX 309 HELSINKI 00101

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pynnönen, Janne Lempäälä, FI 8 9
Räsänen, Jari Imatra, FI 34 124

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