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公开(公告)号:US20210139674A1
公开(公告)日:2021-05-13
申请号:US16623882
申请日:2018-06-21
申请人: RENGO CO., LTD.
摘要: A material is provided which comprises cellulose fine fibers and which is capable of suitably acting on resin or rubber uniformly on a high level, and of generating superior action when added to a resin composition. As such a material, cellulose xanthate fine fibers are contained in a resin composition or a resin dispersion.
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公开(公告)号:US20180273644A1
公开(公告)日:2018-09-27
申请号:US15781515
申请日:2016-12-22
申请人: RENGO CO., LTD.
发明人: Junichi KUBO , Tomoyuki NAKATSUBO , Kenichi ITO , Hirokuni TAJIMA
摘要: Nanofiber that keep crystallinity are obtained from a cellulose material under light load. The nanofiber are obtained by treating a material containing cellulose with 4% by mass or more and 9% by mass or less of an aqueous alkali metal hydroxide solution to produce alkali cellulose, reacting the alkali cellulose with carbon disulfide to give cellulose xanthate, and defibrating the cellulose xanthate. Then, the xanthate is treated with acid or heat to be regenerated into cellulose nanofiber.
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