Method for making nanofibrillar cellulose and for making a paper product

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United States of America Patent

PATENT NO 9976256
SERIAL NO

14891222

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Abstract

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A method for making nanofibrillar cellulose includes mixing anionized or cationized cellulose fibers and cellulose pulp to a mixture including at least 1% and below 90 wt-% cellulose pulp based on dry weight, and subjecting the mixture to a refiner stage where the anionized or cationized cellulose fibers are at least partly reduced to nanofibrillar cellulose and the cellulose pulp acts as auxiliary pulp, and obtaining a mixture of nanofibrillar cellulose and cellulose pulp from the refining stage. The mixture can be used for making paper by adding it to base pulp.

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Patent Owner(s)

Patent OwnerAddress
UPM-KYMMENE CORPORATIONALVAR AALLON KATU 1 00100 HELSINKI 00100

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kajanto, Isko Espoo, FI 24 69
Tamper, Juha Taipalsaari, FI 33 65
Tienvieri, Taisto Vantaa, FI 9 107

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