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    Anionic cellulose nitrate derivatives and aqueous dispersions thereof
    5.
    发明授权
    Anionic cellulose nitrate derivatives and aqueous dispersions thereof 失效
    阴离子硝酸纤维素衍生物及其水分散体

    公开(公告)号：US07071326B2

    公开(公告)日：2006-07-04

    申请号：US11290193

    申请日：2005-11-30

    申请人： Carsten Hüttermann ,  Thomas Wagner ,  Klaus Nachtkamp

    发明人： Carsten Hüttermann ,  Thomas Wagner ,  Klaus Nachtkamp

    IPC分类号： C08B7/00 ,  C09D101/20

    CPC分类号： C08J3/05 ,  C08B7/00 ,  C08J2301/18 ,  C08L1/20

    摘要： An anionic cellulose nitrate derivative is described, which has: (i) a degree of acid group substitution (DS (acid)) in the range of 0.01 to 0.2; and (ii) a nitrogen content of 10.7 wt. % to 12.3 wt. %, based on the weight of cellulose nitrate derivative. The anionic cellulose nitrate derivative is prepared by a process which includes esterifying cellulose nitrate feed material with at least one dicarboxylic acid anhydride (e.g., maleic anhydride). Aqueous dispersions according to the present invention include: (a) at least on anionic cellulose nitrate derivative according to the present invention; and (b) at least one base.

    摘要翻译： 描述了一种阴离子硝酸纤维素衍生物，其具有：（i）酸基置换度（DS（酸））在0.01至0.2的范围内; 和（ii）10.7重量％的氮含量。 ％〜12.3重量％ ％，基于硝酸纤维素衍生物的重量。 通过包括用至少一种二羧酸酐（例如马来酸酐）将硝酸纤维素原料酯化的方法制备阴离子硝酸纤维素衍生物。 根据本发明的水分散体包括：（a）至少一种根据本发明的阴离子硝酸纤维素衍生物; 和（b）至少一个碱基。

    Process for the preparation of cellulose derivatives containing amino groups
    6.
    发明申请
    Process for the preparation of cellulose derivatives containing amino groups 审中-公开
    制备含氨基的纤维素衍生物的方法

    公开(公告)号：US20060041117A1

    公开(公告)日：2006-02-23

    申请号：US11184093

    申请日：2005-07-19

    申请人： Jurgen Engelhardt ,  Meinolf Brackhagen ,  Klaus Nachtkamp ,  Wolfgang Koch ,  Thomas Schulze ,  Frank Meister

    发明人： Jurgen Engelhardt ,  Meinolf Brackhagen ,  Klaus Nachtkamp ,  Wolfgang Koch ,  Thomas Schulze ,  Frank Meister

    IPC分类号： C08B11/00

    CPC分类号： C08B11/145 ,  A61K8/731 ,  A61Q19/00 ,  C02F1/56 ,  D21H17/07 ,  D21H17/25

    摘要： A process is described for the preparation of cellulose derivatives containing amino groups that involves reacting, in the presents of water as a reaction medium, alkali cellulose or alkali cellulose derivatives with reagents represented by the following formula, X—(CH2)n—NR1R2 in which: X is selected from the group consisting of chlorine, bromine, iodine and a sulfonic acid radical R′SO3, in which R′ is an aromatic radical or an aliphatic radical; n is at least 2; and R1 and R2 independently of each other are selected from the group consisting of aliphatic substituents, branched alkyl substituents, cyclic alkyl substituents, aryl substituents, aryl substituents substituted by heteroatoms, H, and R1 and R2 together form a ring with the nitrogen. In the process, the mole ratio of cellulose to water, of said reaction medium, is 1:5 to 1:40 mol water per mol of anhydroglucose unit (AGU). Amino functional cellulose derivatives prepared in accordance with the method of the present invention are useful in cosmetic formulations and aqueous paper treatment compositions.

    摘要翻译： 描述了制备含有氨基的纤维素衍生物的方法，该方法包括在作为反应介质的水的存在下，将碱纤维素或碱性纤维素衍生物与下式表示的试剂反应：<？在线配方说明= “In-line Formulas”end =“lead”？> X-（CH 2）n - NR 1 R 2 - 其中：X选自氯，溴，碘和磺酸基R'SO 2，其中：X选自氯，溴，碘，磺酸根R' 其中R'是芳族基团或脂族基团; n至少为2; R 1和R 2彼此独立地选自脂族取代基，支链烷基取代基，环烷基取代基，芳基取代基，被杂原子取代的芳基取代基 ，H和R 1和R 2一起与氮一起形成环。 在该过程中，所述反应介质的纤维素与水的摩尔比为每摩尔脱水葡萄糖单元（AGU）为1:5至1:40摩尔水。 根据本发明的方法制备的氨基官能纤维素衍生物可用于化妆品制剂和水性纸处理组合物中。