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    Method for producing cellulose derivatives
    3.
    发明授权
    Method for producing cellulose derivatives 失效
    纤维素衍生物的制造方法

    公开(公告)号：US6146858A

    公开(公告)日：2000-11-14

    申请号：US462046

    申请日：2000-02-14

    申请人： Rainhardt Koch ,  Frank Berendes ,  John Foster ,  Hans-Georg Rast ,  Jurgen Engelhardt ,  Jorg Neubauer ,  Wolfgang Koch ,  Klaus Szablikowski

    发明人： Rainhardt Koch ,  Frank Berendes ,  John Foster ,  Hans-Georg Rast ,  Jurgen Engelhardt ,  Jorg Neubauer ,  Wolfgang Koch ,  Klaus Szablikowski

    IPC分类号： C08B1/00 ,  C08B11/08 ,  C12P19/14 ,  C12S3/04 ,  C12P19/04 ,  C08B1/06 ,  C12N9/26 ,  C12N9/42 ,  D06M16/00

    CPC分类号： C12P19/14 ,  C08B1/00 ,  C08B11/08

    摘要： Samples of commercial cellulose having high crystallinity (>80%) and a degree of polymerization of approximately 1500 were pretreated enzymatically under various conditions with commercial endoglucanases, before the chemical conversion to substituted cellulose derivatives was carried out. The enzymatically pretreated cellulose samples exhibited a significantly higher substitution, up to 222% higher, in comparison with control samples which had been treated with buffer without enzyme. The increase in substitution during the chemical reaction could be observed in the presence of various amounts of alkali, but fell as the amounts of alkali decreased. At the same degree of substitution of the cellulose derivative, the use of cellulose pretreated with endoglucanase significantly reduced the amount of alkali required by 60%, as compared with the use of cellulose pretreated only with buffer. Furthermore, by reducing the amount of water used in the reaction mixture in the chemical reaction, it was possible further to increase the substitution of enzymatically pretreated cellulose.

    摘要翻译： PCT No.PCT / EP98 / 03907 Sec。 371日期2000年2月14日 102（e）日期2000年2月14日PCT提交1998年6月26日PCT公布。 出版物WO99 /​​ 02568 日期1999年1月21日在进行取代纤维素衍生物的化学转化之前，将具有高结晶度（> 80％）和聚合度约1500的市售纤维素样品在各种条件下用商业内切葡聚糖酶预处理。 与没有酶的缓冲液处理的对照样品相比，酶法预处理的纤维素样品显示出高得多的222％的替代。 化学反应中取代的增加可以在各种碱存在下观察到，但随着碱量的降低而降低。 与纤维素衍生物相同的取代度，与仅使用缓冲液预处理的纤维素的使用相比，使用用内切葡聚糖酶预处理的纤维素显着地减少了所需碱量的60％。 此外，通过减少化学反应中反应混合物中使用的水量，可以进一步增加酶预处理的纤维素的取代。

    Method for the preparation of cationic, water-soluble polymers and their use
    6.
    发明授权
    Method for the preparation of cationic, water-soluble polymers and their use 失效
    制备阳离子，水溶性聚合物的方法及其用途

    公开(公告)号：US5446107A

    公开(公告)日：1995-08-29

    申请号：US259702

    申请日：1994-06-14

    申请人： Klaus Szablikowski ,  Wolfgang Koch ,  Heinrich Leffers ,  Hans-Gunter Poersch-Panke ,  Branislav Boehmer

    发明人： Klaus Szablikowski ,  Wolfgang Koch ,  Heinrich Leffers ,  Hans-Gunter Poersch-Panke ,  Branislav Boehmer

    IPC分类号： C08F8/08 ,  C08F2/38 ,  C08F8/32 ,  C08F20/56 ,  D21H17/37 ,  D21H17/44 ,  D21H21/02 ,  D21H21/04 ,  D21H21/10 ,  C08F8/00

    CPC分类号： C08F8/32 ,  D21H17/375 ,  D21H17/44 ,  D21H21/02 ,  D21H21/10

    摘要： A method for the preparation of water-soluble, cationic amine polymers by the continuous or batch-wise reaction of a polymer having primary, secondary or tertiary amine functions in its side chain or primary chain as a starting material, wherein the reaction is carried out with an epoxide, a glycidyl ether or a mixture of different epoxides and glycidyl ethers in aqueous solution without additional solvent at a temperature of 30.degree. to 90.degree. C. and at a pH of 8 to 14 within 3 to 30 minutes, the epoxides or glycidyl ethers are added as one batch or in portions, and after adjusting the pH of the aqueous solution of the cationic polymer, which is >13.5 after the reaction with epoxide or glycidyl ether, using a mineral or carboxylic acid, the product solution is obtained without additional work-up steps.

    摘要翻译： 通过在其侧链或一级链中具有伯胺，仲胺或叔胺官能团的聚合物的连续或间歇反应作为起始原料制备水溶性阳离子胺聚合物的方法，其中反应进行 环氧化物，缩水甘油醚或不同环氧化物和缩水甘油醚在水溶液中的混合物，不含另外的溶剂，温度为30-90℃，pH为8-14，3-30分钟内，环氧化物或 缩水甘油醚以一批或分批的形式加入，并且在使用矿物或羧酸与环氧化物或缩水甘油醚反应后调节阳离子聚合物的水溶液的pH> 13.5后，得到产物溶液 没有额外的后处理步骤。

    Thermoplastic cellulose ether ester graft copolymers and process for their production
    8.
    发明授权
    Thermoplastic cellulose ether ester graft copolymers and process for their production 失效
    热塑性纤维素醚酯接枝共聚物及其制备方法

    公开(公告)号：US5466794A

    公开(公告)日：1995-11-14

    申请号：US245350

    申请日：1994-05-17

    申请人： Jochen Kalbe ,  Hanns P. Muller ,  Rainhard Koch ,  Jurgen Engelhardt ,  Wolfgang Koch ,  Klaus Szablikowski ,  Gunter Weber

    发明人： Jochen Kalbe ,  Hanns P. Muller ,  Rainhard Koch ,  Jurgen Engelhardt ,  Wolfgang Koch ,  Klaus Szablikowski ,  Gunter Weber

    IPC分类号： C08F251/02 ,  C08B13/00 ,  C08B15/00 ,  C08F251/00 ,  C08G63/664 ,  C08H8/00 ,  C08H99/00 ,  C08L1/00 ,  C08L1/32 ,  C08L1/26 ,  D01F2/28

    CPC分类号： C08B15/00 ,  C08B13/00 ,  C08G63/664

    摘要： The present invention relates to novel thermoplastic, water-insoluble cellulose hydroxyalkyl hydroxycarboxylic acid esters of the general structureCell--O--Rwhere Cell--O is the substituted OH group of a polymeric cellulose unit and R is either a monomeric and/or polymeric hydroxyalkylether hydroxycarboxylic acid ester of the structure X:X=--A--B--in which A is a linear polyether chain:A=(--D--O--).sub.nin which D signifies a linear aliphatic branched or unbranched chain with 2 to 11 C atoms and n is a whole number equal to or greater than 1, and B is a linear polyester chain: ##STR1## in which E signifies a linear aliphatic branched or unbranched chain with 2 to 5 C atoms and m is a whole number equal to or greater than 1, or R is equal to A or B or X and a combination thereof in any ratio, or R is equal to H (hydrogen) according to the degree of substitution per anhydroglucose unit (max. 3) with A, B or X, and a process for their production and use of these cellulose derivatives as biodegradable mouldings.

    摘要翻译： 本发明涉及通用结构为Cell-OR的新型热塑性，水不溶性纤维素羟烷基羟基羧酸酯，其中Cell-O是聚合纤维素单元的取代的OH基团，R是单体和/或聚合羟基烷基醚羟基羧酸 酯结构X：X = -AB-，其中A为直链聚醚链：A =（ - DO-）n，其中D表示具有2至11个C原子的直链脂族支链或非支链，n为整数 数目等于或大于1，B是线性聚酯链：其中E表示具有2至5个C原子的直链脂族支链或非支链链，m是等于或大于1的整数，或 R等于A或B或X及其任何比例的组合，或者R等于H（氢），根据每个脱水葡萄糖单元的取代度（最多3）与A，B或X，以及工艺 用于生产和使用这些纤维素衍生物作为生物降解 可塑成型品。