CELLULOSE COMPOSITE AND METHOD FOR PRODUCING SAME

WIPO Patent Application WO/2021/153684

A1

Provided are a cellulose composite that contains nanoparticles, and a method for producing same, the composite fully manifesting the function of functional nanoparticles and yielding excellent durability and mechanical properties. The present invention pertains to: a cellulose composite containing nanoparticles that have a mean grain size of 1-300 nm, wherein 50% or more of the total number of the nanoparticles contained are present at a depth of up to 1-300 nm from an outer layer of the cellulose composite; and a method for producing the cellulose composite comprising (1) a step for cationizing a cellulosic substrate, and (2) a step for impregnating the resulting cationized cellulosic substrate with a nanoparticle dispersion liquid at a pH whereby the nanoparticles will reach a negative zeta potential, or a step for impregnating a cellulosic substrate with a nanoparticle dispersion liquid at a pH whereby the nanoparticles will reach a positive zeta potential.

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MURATA KAZUKI (JP)
AKITA SHOICHI (JP)

PCT/JP2021/003076

August 05, 2021

January 28, 2021

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ASAHI CHEMICAL IND (JP)

D06M11/83; D01F2/04; D06M13/46; D06M23/08

JP2014201859A	2014-10-27
JP2017141531A	2017-08-17
JP2017088509A	2017-05-25
JP2018119223A	2018-08-02
JP2011101880A	2011-05-26

AOKI, Atsushi et al. (JP)

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