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143 条记录 (耗时 0.028 秒)

    FIBROUS CELLULOSE, FIBROUS CELLULOSE DISPERSION, AND PRODUCTION METHOD FOR FIBROUS CELLULOSE
    2.
    发明申请
    FIBROUS CELLULOSE, FIBROUS CELLULOSE DISPERSION, AND PRODUCTION METHOD FOR FIBROUS CELLULOSE 有权

    公开(公告)号：US20220002442A1

    公开(公告)日：2022-01-06

    申请号：US17285725

    申请日：2019-10-16

    申请人： OJI HOLDINGS CORPORATION

    发明人： Akihiro TANAKA ,  Hayato FUSHIMI

    IPC分类号： C08B5/00 ,  C08B1/02

    摘要： An object of the present invention is to provide ultrafine fibrous cellulose capable of exhibiting excellent coating suitability when added to paint. The present invention relates to fibrous cellulose having a fiber width of 1,000 nm or less, in which, when the fibrous cellulose is dispersed in water to form a dispersion liquid having a viscosity of 2,500 mPa·s at 23° C., and the dispersion liquid is stirred under predetermined stirring conditions, a viscosity change rate falls within ±50%, calculated by the following formula: viscosity change rate (%)=(viscosity after stirring−viscosity before stirring)/viscosity before stirring×100

    FINE CELLULOSE FIBER AND METHOD FOR PRODUCING SAME
    3.
    发明申请
    FINE CELLULOSE FIBER AND METHOD FOR PRODUCING SAME 有权

    公开(公告)号：US20210380724A1

    公开(公告)日：2021-12-09

    申请号：US17049825

    申请日：2019-05-17

    申请人： Daio Paper Corporation

    发明人： Ikko Matsusue

    IPC分类号： C08B5/00 ,  D01F2/24

    摘要： A fine cellulose fiber in which when the fine cellulose fiber is formed into a dispersion, the dispersion has very high light transmittance and viscosity, and a method for producing the fine cellulose fiber.
    The fine cellulose fiber has a fiber width of 1 to 200 nm. A part of hydroxy groups of the cellulose fiber are substituted with a predetermine functional group to introduce an ester of phosphorus-oxo acid, and the introduction amount of the functional group is more than 2.0 mmol per 1 g of the cellulose fiber. For producing the fine cellulose fiber, to cellulose fiber is added a solution having a pH of less than 3.0 and including an additive (A) containing at least one of a phosphorus-oxo acid and a phosphorus-oxo acid metal salt and an additive (B) containing at least one of urea and a urea derivative, and the mixture is heated to perform fibrillation.

    METHOD FOR PRODUCING FIBROUS CELLULOSE, AND FIBROUS CELLULOSE
    7.
    发明申请
    METHOD FOR PRODUCING FIBROUS CELLULOSE, AND FIBROUS CELLULOSE 审中-公开

    公开(公告)号：US20200208350A1

    公开(公告)日：2020-07-02

    申请号：US16814501

    申请日：2020-03-10

    申请人： OJI HOLDINGS CORPORATION

    发明人： Yuichi NOGUCHI ,  Ikue HOMMA ,  Yusuke MATSUBARA

    IPC分类号： D21H11/18 ,  C08B5/00 ,  D21H15/02 ,  D21H11/04

    摘要： It is an object of the present invention to provide a method for producing ultrafine fibrous cellulose, which is capable of efficiently obtaining ultrafine fibrous cellulose having phosphoric acid groups with a high yield. The present invention relates to a method for producing fibrous cellulose having a fiber width of 1000 nm or less, comprising: a (A) of introducing phosphoric acid groups into cellulose fibers to form crosslinked structures via the phosphoric acid groups, thereby obtaining crosslinked phosphorylated cellulose fibers, a (B) of breaking some or all of the crosslinked structures to obtain crosslink-broken phosphorylated cellulose fibers, and a (C) of performing a mechanical treatment on the crosslink-broken phosphorylated cellulose fibers to obtain fibrous cellulose having a fiber width of 1000 nm or less, wherein, in the (A), crosslinked structures in an amount of 0.05 mmol/g or more and 2.0 mmol/g or less are formed, and the (B) is a step of performing the hydrolysis of the crosslinked structures in an aqueous solvent with pH 3 or more.

    Methods for integrating the production of cellulose nanofibrils with the production of cellulose nanocrystals
    10.
    发明授权
    Methods for integrating the production of cellulose nanofibrils with the production of cellulose nanocrystals 有权
    将纤维素纳米纤维的生产与纤维素纳米晶体的生产相结合的方法

    公开(公告)号：US08710213B2

    公开(公告)日：2014-04-29

    申请号：US13472137

    申请日：2012-05-15

    申请人： JunYong Zhu ,  Richard S. Reiner

    发明人： JunYong Zhu ,  Richard S. Reiner

    IPC分类号： C08B15/00 ,  C08B5/14 ,  C08B5/00

    CPC分类号： C08B15/00 ,  B82Y40/00 ,  C08B5/00 ,  C08B5/14

    摘要： Methods for integrating the production of cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) from cellulose are provided. The methods use milder acid hydrolysis conditions than those for maximal CNC production to achieve reduced degradation of cellulose into soluble sugars. Also provided are negatively charged cellulosic solid residues (CSRs) in the form of cellulose fibers (CF) and/or cellulose microfibrils (CMF) during the acid hydrolysis, as well as CNFs fabricated from the CSRs.

    摘要翻译： 提供了从纤维素制备纤维素纳米晶体（CNC）和纤维素纳米纤维（CNF）的生产方法。 该方法使用比最大CNC生产更温和的酸水解条件，以实现纤维素降解成可溶性糖。 还提供了在酸水解期间纤维素纤维（CF）和/或纤维素微原纤维（CMF）形式的带负电荷的纤维素固体残余物（CSR）以及由CSR制造的CNF。