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    CELLULOSE RESIN COMPOSITION, MOLDED BODY AND PRODUCT USING SAME
    1.
    发明申请
    CELLULOSE RESIN COMPOSITION, MOLDED BODY AND PRODUCT USING SAME 审中-公开

    公开(公告)号：US20190169402A1

    公开(公告)日：2019-06-06

    申请号：US16310003

    申请日：2017-06-15

    Applicant: NEC CORPORATION

    Inventor： Kiyohiko TOYAMA ,  Masatoshi IJI ,  Kunihiko ISHIHARA

    IPC: C08L1/10 ,  C08K5/521 ,  C08K3/04 ,  C08K5/01

    Abstract: A cellulose resin composition containing a cellulose resin (A) and a high refractive-index organic material (B), in which the cellulose resin (A) is a cellulose derivative obtained by substituting at least part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms and a long-chain organic group having 7 or more carbon atoms, and the mass fraction (B/A) of the high refractive-index organic material (B) to the cellulose resin (A) falls within the range of 10/90 to 70/30.

    CELLULOSE RESIN, MATERIAL FOR MOLDING, MOLDED BODY AND PROCESS FOR PRODUCING CELLULOSE RESIN
    4.
    发明申请
    CELLULOSE RESIN, MATERIAL FOR MOLDING, MOLDED BODY AND PROCESS FOR PRODUCING CELLULOSE RESIN 审中-公开

    公开(公告)号：US20190010251A1

    公开(公告)日：2019-01-10

    申请号：US16066521

    申请日：2016-12-09

    Applicant: NEC CORPORATION

    Inventor： Shukichi TANAKA ,  Midori SHIMURA ,  Masatoshi IJI

    IPC: C08B3/16

    Abstract: A cellulose resin formed by substituting hydrogen atoms of hydroxy groups of a cellulose with a long-chain component being a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component being an acyl group having 2 or 3 carbon atoms, in which a degree of substitution with the long-chain component (DSLo) and a degree of substitution with the short-chain component (DSSh) satisfy conditional expressions (1) and (2) shown below: DSLo+DSSh≥2.1  (1) 4≤DSSh/DSLo≤12  (2).

    PARAMYLON-BASED RESIN, MOLDING MATERIAL, MOLDED BODY, AND METHOD FOR PRODUCING PARAMYLON-BASED RESIN
    5.
    发明申请
    PARAMYLON-BASED RESIN, MOLDING MATERIAL, MOLDED BODY, AND METHOD FOR PRODUCING PARAMYLON-BASED RESIN 有权

    公开(公告)号：US20210340282A1

    公开(公告)日：2021-11-04

    申请号：US17258955

    申请日：2019-07-10

    Applicant: NEC CORPORATION ,  UNIVERSITY OF TSUKUBA

    Inventor： Midori SHIMURA ,  Shukichi TANAKA ,  Toshie MIYAMOTO ,  Masatoshi IJI

    IPC: C08B37/00

    Abstract: A paramylon-based resin having a weight-average molecular weight of paramylon in a range of 70000 to 140000, and formed by substituting hydrogen atoms of hydroxy groups of a paramylon with a long-chain component being a linear saturated aliphatic acyl group having 14 or more carbon atoms and a short-chain component being an acyl group (acetyl group or/and propionyl group) having 2 or 3 carbon atoms, wherein a degree of substitution with the long-chain component (DSLo) and a degree of substitution with the short-chain component (DSSh) satisfy the following conditional expressions (1) and (2), Izod impact strength is 5.0 kJ/m2 or more, and an MFR (melt flow rate at 210° C. and under a load of 5 kg) is 2 g/10 min or more. To provide a paramylon-based resin excellent in mechanical characteristics and thermoplasticity. 2.2≤DSLo+DSSh≤2.8 (1) 5≤DSSh/DSLo≤25 (2)

    CELLULOSE DERIVATIVE AND RESIN COMPOSITION FOR MOLDING
    6.
    发明申请
    CELLULOSE DERIVATIVE AND RESIN COMPOSITION FOR MOLDING 审中-公开

    公开(公告)号：US20170260294A1

    公开(公告)日：2017-09-14

    申请号：US15521965

    申请日：2015-04-24

    Applicant: NEC Corporation

    Inventor： Kiyohiko TOYAMA ,  Masatoshi IJI ,  Shukichi TANAKA

    IPC: C08B3/16 ,  C08L1/14

    Abstract: A cellulose derivative having a long-chain organic group having 5 or more carbon atoms and a short-chain organic group having 4 or less carbon atoms which are introduced by use of hydroxy groups of a cellulose, and including a crystal structure derived from a cellulose derivative portion to which the short-chain organic group is linked, wherein an average number of hydroxy groups per glucose unit is of 1.0 or less.

    PROCESS FOR PRODUCING CELLULOSE DERIVATIVE AND CELLULOSE DERIVATIVE
    7.
    发明申请
    PROCESS FOR PRODUCING CELLULOSE DERIVATIVE AND CELLULOSE DERIVATIVE 有权
    生产纤维素衍生物和纤维素衍生物的方法

    公开(公告)号：US20160251452A1

    公开(公告)日：2016-09-01

    申请号：US15030936

    申请日：2014-10-07

    Applicant: NEC CORPORATION

    Inventor： Kiyohiko TOYAMA ,  Masatoshi IJI ,  Shukichi TANAKA

    IPC: C08B3/16 ,  C08L1/14

    CPC classification number: C08B3/16 ,  C08L1/14 ,  C08L67/02

    Abstract: A process for producing a cellulose derivative, comprising: a first step including reacting a cellulose and a first reactant comprising a long-chain reactant for reacting with a hydroxy group of the cellulose to introduce a long-chain organic group having 5 or more carbon atoms, in a solid-liquid heterogeneous system, to form a cellulose derivative in a swollen state, the cellulose derivative having the long-chain organic group having 5 or more carbon atoms introduced therein and having a part of hydroxy groups of the cellulose remained, and performing solid-liquid separation to obtain the cellulose derivative as an intermediate; and a second step including reacting the intermediate cellulose derivative and a second reactant comprising a short-chain reactant for reacting with a remaining hydroxy group of the intermediate cellulose derivative to introduce a short-chain organic group having 4 or less carbon atoms to form a final cellulose derivative having the short-chain organic group having 4 or less carbon atoms introduced therein.

    Abstract translation: 一种纤维素衍生物的制造方法，其特征在于，包括：第一步骤，使纤维素与含有长链反应物的第一反应物反应，与纤维素的羟基反应，引入具有5个以上碳原子的长链有机基团 在固体 - 液体异质体系中，为了形成溶胀状态的纤维素衍生物，导入其中具有5个或更多碳原子的长链有机基团并且具有一部分纤维素的羟基的纤维素衍生物残留，以及 进行固液分离，得到纤维素衍生物作为中间体; 第二步骤包括使中间体纤维素衍生物和包含短链反应物的第二反应物与中间体纤维素衍生物的剩余羟基反应以引入具有4个或更少碳原子的短链有机基团以形成最终的 具有引入其中具有4个或更少碳原子的短链有机基团的纤维素衍生物。

    PROCESS FOR PRODUCING CELLULOSE DERIVATIVE AND CELLULOSE DERIVATIVE
    9.
    发明申请
    PROCESS FOR PRODUCING CELLULOSE DERIVATIVE AND CELLULOSE DERIVATIVE 审中-公开

    公开(公告)号：US20180355066A1

    公开(公告)日：2018-12-13

    申请号：US16005314

    申请日：2018-06-11

    Applicant: NEC Corporation

    Inventor： Kiyohiko TOYAMA ,  Masatoshi IJI ,  Shukichi TANAKA

    IPC: C08B3/16 ,  C08L67/02 ,  C08L1/14

    CPC classification number: C08B3/16 ,  C08L1/14 ,  C08L67/02

    Abstract: A process for producing a cellulose derivative, comprising: a first step including reacting a cellulose and a first reactant comprising a long-chain reactant for reacting with a hydroxy group of the cellulose to introduce a long-chain organic group having 5 or more carbon atoms, in a solid-liquid heterogeneous system, to form a cellulose derivative in a swollen state, the cellulose derivative having the long-chain organic group having 5 or more carbon atoms introduced therein and having a part of hydroxy groups of the cellulose remained, and performing solid-liquid separation to obtain the cellulose derivative as an intermediate; and a second step including reacting the intermediate cellulose derivative and a second reactant comprising a short-chain reactant for reacting with a remaining hydroxy group of the intermediate cellulose derivative to introduce a short-chain organic group having 4 or less carbon atoms to form a final cellulose derivative having the short-chain organic group having 4 or less carbon atoms introduced therein.

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