Method for producing cellulose nanofibers

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United States of America Patent

PATENT NO 11905657
APP PUB NO 20200407912A1
SERIAL NO

16978967

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Abstract

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Provided is a method for producing cellulose nanofibers by refining pulp fibers, wherein the method enables obtaining cellulose nanofibers in which a decrease in a molecular weight of cellulose is suppressed, and which can demonstrate superior strength and the like. The present invention is a method for producing cellulose nanofibers, the method including: pretreating pulp fibers in a slurry; and refining, using a high-pressure homogenizer, the pulp fibers in the slurry, the pulp fibers being pretreated, wherein a weight average molecular weight of cellulose of cellulose nanofibers obtained through the refining is 65% or more of a weight average molecular weight of cellulose of the pulp fibers before the pretreating.

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Patent Owner(s)

Patent OwnerAddress
DAIO PAPER CORPORATION2-60 MISHIMAKAMIYA-CHO SHIKOKUCHUO-SHI EHIME 799-0492

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Okawa, Junya Shikokuchuo, JP 9 10

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