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97 条记录 (耗时 0.022 秒)

    PROCESS TO PREPARE CROSSLINKED CELLULOSE ETHERS, CROSSLINKED CELLULOSE ETHERS OBTAINABLE BY SUCH PROCESS AND THE USE THEREOF
    41.
    发明申请
    PROCESS TO PREPARE CROSSLINKED CELLULOSE ETHERS, CROSSLINKED CELLULOSE ETHERS OBTAINABLE BY SUCH PROCESS AND THE USE THEREOF 有权
    制备交联纤维素的方法，可通过这种方法获得的交联的纤维素类及其用​​途

    公开(公告)号：US20150307631A1

    公开(公告)日：2015-10-29

    申请号：US14795314

    申请日：2015-07-09

    申请人： AKZO NOBEL N.V.

    发明人： Paulus Pieter De Wit

    IPC分类号： C08B15/00

    CPC分类号： C08B15/005 ,  C08B5/00

    摘要： The invention relates to a dry or slurry process to prepare phosphate-crosslinked cellulose ethers from a cellulose starting material comprising the steps of adding an alkalizing agent to the cellulose starting material to achieve mercerization, adding an ethehfying agent to the reaction mixture to achieve etherification of the cellulose, and adding a crosslinking agent to the reaction mixture to achieve crosslinking of the cellulose, wherein at least part of the alkalizing agent is added to the cellulose starting material before the etherification and/or crosslinking reactions take place to obtain alkalized cellulose; the crosslinking agent and the etherifying agent are added one after the other in random order or simultaneously; the crosslinking agent is an alkali metal thmetaphosphate; and the crosslinking and etherification steps are performed at an elevated temperature. Additionally, the invention relates to crosslinked cellulose ethers obtainable by the above process having a viscosity and/or water absorption capacity higher than their non-crosslinked equivalents and the use thereof.

    摘要翻译： 本发明涉及从纤维素起始材料制备磷酸盐交联的纤维素醚的干法或浆料方法，包括以下步骤：向纤维素原料中加入碱化剂以实现丝光处理，向反应混合物中加入醚化剂以实现醚化 纤维素，并向反应混合物中加入交联剂以实现纤维素的交联，其中在发生醚化和/或交联反应之前将至少部分碱化剂加入到纤维素原料中以获得碱化纤维素; 交联剂和醚化剂一个接一个地以随机顺序或同时加入; 交联剂是碱金属硫代磷酸盐; 并且交联和醚化步骤在升高的温度下进行。 此外，本发明涉及通过上述方法获得的交联纤维素醚，其粘度和/或吸水能力高于其非交联当量及其用途。

    Methods for integrating the production of cellulose nanofibrils with the production of cellulose nanocrystals
    43.
    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。

    PREPARATION METHOD FOR CELLULOSE PHOSPHITE COMPOUNDS
    44.
    发明申请
    PREPARATION METHOD FOR CELLULOSE PHOSPHITE COMPOUNDS 审中-公开
    纤维素磷酸盐化合物的制备方法

    公开(公告)号：US20110196139A1

    公开(公告)日：2011-08-11

    申请号：US12909475

    申请日：2010-10-21

    申请人： Hyun Joo Lee ,  Bang Sook Lee ,  Young-Woong Suh ,  Byoung Koun Min ,  Byoung Sung Ahn ,  Hoon Sik Kim

    发明人： Hyun Joo Lee ,  Bang Sook Lee ,  Young-Woong Suh ,  Byoung Koun Min ,  Byoung Sung Ahn ,  Hoon Sik Kim

    IPC分类号： C07H1/02

    CPC分类号： C08B5/00 ,  C08B1/003

    摘要： Provided is a method for preparing a cellulose phosphite compound, more particularly a method for preparing a cellulose phosphite compound whereby cellulose is phosphorylated using an ionic liquid comprising an amine-based cation and a phosphite-based anion.Thus prepared cellulose phosphite compound has a good solubility in water and is highly valuable as concentration control agent, medicine, biomembrane, or the like.

    摘要翻译： 提供一种制备亚磷酸纤维素化合物的方法，更具体地说，涉及使用包含胺类阳离子和亚磷酸盐类阴离子的离子液体使纤维素磷酸化的亚磷酸纤维素化合物的制造方法。 如此制备的亚磷酸纤维素化合物在水中的溶解度好，作为浓度调节剂，药物，生物膜等是非常有价值的。

    METAL SALT OF CROSSLINKED CELLULOSE DERIVATIVE
    46.
    发明申请
    METAL SALT OF CROSSLINKED CELLULOSE DERIVATIVE 有权
    金属盐的交联纤维素衍生物

    公开(公告)号：US20100317844A1

    公开(公告)日：2010-12-16

    申请号：US12521524

    申请日：2007-12-26

    申请人： Naoyuki Yoshida ,  Kazushi Ishida ,  Shuji Sasaki ,  Ippei Yamaoka

    发明人： Naoyuki Yoshida ,  Kazushi Ishida ,  Shuji Sasaki ,  Ippei Yamaoka

    IPC分类号： C07H23/00

    CPC分类号： A61K31/717 ,  C08B5/00 ,  C08B11/12 ,  C08B15/005

    摘要： The invention provides a metal salt of a crosslinked cellulose derivative represented by the following formula (I), wherein the degree of substitution of the hydroxyl group of glucose unit of the crosslinked cellulose derivative by a functional group a is 1 or more. R—O-A  (I) {In the formula (I), R represents a crosslinked cellulose residue and A represents a functional group a having cation-exchange ability.}

    摘要翻译： 本发明提供由下式（I）表示的交联纤维素衍生物的金属盐，其中交联的纤维素衍生物的官能团a的葡萄糖单元的羟基的取代度为1以上。 R-O-A（I）{式（I）中，R表示交联纤维素残基，A表示具有阳离子交换能力的官能团。

    Phosphoric ester of cellulose derivative and metal adsorbent comprising the same
    48.
    发明授权
    Phosphoric ester of cellulose derivative and metal adsorbent comprising the same 失效
    纤维素衍生物的磷酸酯和包含它的金属吸附剂

    公开(公告)号：US07741424B2

    公开(公告)日：2010-06-22

    申请号：US11575098

    申请日：2005-09-26

    申请人： Ming Lu ,  Katsumi Yabusaki

    发明人： Ming Lu ,  Katsumi Yabusaki

    IPC分类号： C08G79/00 ,  B01D11/04 ,  C08B3/00 ,  C08B5/00 ,  C08B7/00 ,  C08B13/00

    CPC分类号： C08B5/00 ,  B01J20/26 ,  B01J20/262 ,  B01J20/265 ,  C08B11/04 ,  C08B11/08 ,  C08B11/20 ,  C08B13/00

    摘要： The present invention is directed to a phosphoric ester of 2,3-dihydroxypropyl cellulose or 3-(2,3-dihydroxypropoxy)-2-hydroxypropyl cellulose, the cellulose having optionally undergone partial carbamidation, and to a metal absorbent employing the ester, and to a metal-absorbing apparatus employing the metal adsorbent.The cellulose derivative phosphoric ester serves as a metal adsorbent which exhibits high metal adsorption performance and metal adsorption rate per unit weight; has high mechanical strength; effectively soften water or a similar liquid; removes heavy metals from wastewater or a similar liquid at remarkably high efficiency; has excellent processability and can be formed into a variety of shapes and thus is applicable within a wide range; and can readily be reutilized.

    摘要翻译： 本发明涉及2,3-二羟基丙基纤维素或3-（2,3-二羟基丙氧基）-2-羟丙基纤维素的磷酸酯，该纤维素任选经历部分氨基甲酰化，以及使用该酯的金属吸收剂，以及 涉及使用金属吸附剂的金属吸收装置。 纤维素衍生物磷酸酯用作金属吸附剂，其具有高的金属吸附性能和每单位重量的金属吸附速率; 机械强度高; 有效地软化水或类似液体; 以非常高的效率从废水或类似液体中除去重金属; 具有优异的加工性，可以形成多种形状，因此适用范围广泛; 并且可以容易地重新利用。