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公开(公告)号：US5068321A
公开(公告)日：1991-11-26
申请号：US420841
申请日：1989-10-13
摘要： New polysaccharide carbonates are produced by acylation of polysaccharides with carbonic acid esters and have degrees of substitution of preferably 0.5 to 3.
摘要翻译： 新的多糖碳酸酯是通过用碳酸酯进行多糖的酰化而制备的，其取代度优选为0.5-3。
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公开(公告)号：US5484903A
公开(公告)日：1996-01-16
申请号：US941495
申请日：1992-09-08
摘要： The invention relates to a process for the production of carbonic acid esters of polysaccharides which is characterized in that polysaccharides are reacted with carbonic acid esters.
摘要翻译： 本发明涉及一种生产多糖碳酸酯的方法，其特征在于多糖与碳酸酯反应。
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3.发明授权Amino and ammonium isocyanates, a process for their preparation, their use for the production of polymers containing ammonium groups and the polymers thus produced 失效氨基和铵异氰酸酯，其制备方法，它们用于生产含铵基团的聚合物和由此制备的聚合物的用途
公开(公告)号：US5310849A
公开(公告)日：1994-05-10
申请号：US875622
申请日：1992-04-28
IPC分类号： C07D295/12 , C07C263/06 , C07C263/16 , C07C265/04 , C07D295/185 , C08G18/08 , C08G18/71 , C08G18/70
CPC分类号： C07D295/185 , C07C265/04 , C08G18/0814 , C08G18/714
摘要： The present invention relates to new amino and ammonium isocyanates, to a process for their preparation, e.g. by the reaction of certain ureas with isocyanates, and to the use of the new substances for the production of polymers containing ammonium groups.
摘要翻译： 本发明涉及新的氨基和铵异氰酸酯，其制备方法，例如 通过某些脲与异氰酸酯的反应，以及使用这些新物质来生产含铵基团的聚合物。
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公开(公告)号：US5463034A
公开(公告)日：1995-10-31
申请号：US421411
申请日：1989-10-13
IPC分类号： C08B15/06 , C07H15/00 , A61K31/715
CPC分类号： C08B15/06
摘要： New polysaccharides have recurring units I or a salt thereof. ##STR1##
摘要翻译： 新的多糖具有重复单元I或其盐。
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公开(公告)号：US5614616A
公开(公告)日：1997-03-25
申请号：US746397
申请日：1991-08-16
CPC分类号： D21H21/06 , B01D21/01 , C02F1/5263 , C02F1/54 , C08B11/15 , C08B11/193 , D21H17/24
摘要： Polysaccharides corresponding to formula (I) ##STR1## in which S is a recurrent monosaccharide unit andB is a group of formula (Ia) attached to the monosaccharide unit S by an O atom ##STR2## are prepared by reaction of polysaccharides with an alkyl halide corresponding to formula (II) ##STR3##
摘要翻译： 对应于式（I）＆lt; IMAGE＆gt;的多糖，其中S是复发单糖单元，B是通过O原子连接到单糖单元S上的式（Ia）的基团通过多糖与烷基 卤化物对应于式（II）
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6.发明授权Method for preparing a mixture of .alpha.- and .beta.-chloroethyl-glucopyranose 失效制备α-和β-氯乙基 - 吡喃葡萄糖混合物的方法
公开(公告)号：US5585471A
公开(公告)日：1996-12-17
申请号：US339526
申请日：1994-11-15
CPC分类号： C07H15/04
摘要： A method for preparing a chloroethylglucopyranose which comprisesa) reacting glucose with from 2 to 10 times the molar amount of chloroethanol at from 100.degree. to 130.degree. C. in the absence of a catalyst, optionally removing water,b) further reacting the product of step (a) at 60.degree. to 90.degree. C. in the presence of an acidic catalyst for from 10 to 600 minutes andc) Separating therefrom the chloroethylglucopyranose.
摘要翻译： 一种制备氯乙基吡喃葡萄糖的方法，其包括：a）在不存在催化剂的情况下，使葡萄糖与100-51℃摩尔量的氯乙醇反应，任选除去水，b）进一步使葡萄糖与 步骤（a）在60℃至90℃下在酸性催化剂存在下进行10至600分钟，和c）从其中分离出氯乙基吡喃葡萄糖。
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公开(公告)号：US5324776A
公开(公告)日：1994-06-28
申请号：US16334
申请日：1993-02-11
摘要： The present invention relates to a process for the preparation of polymers containing amino groups, wherein OH-functional polymers are reacted with aminourethanes of the general formula I ##STR1## in which R represents C.sub.1 -C.sub.6 alkyl, C.sub.5 and C.sub.6 cycloalkyl, benzyl, 2-hydroxyethyl, 2-hydroxypropyl, aryl,R.sup.1 and R.sup.2 are identical or different and have the same meaning as R, and in addition cyanoethyl, or together with the N atom represent a 5- or 6-membered ring, optionally with a further N or O atom, and n is an integer from 0 to 12.
摘要翻译： 本发明涉及一种制备含有氨基的聚合物的方法，其中OH官能聚合物与通式I的氨基甲酸酯反应，其中R代表C1-C6烷基，C5和C6环烷基，苄基，2- 羟乙基，2-羟基丙基，芳基，R 1和R 2是相同或不同的并且具有与R相同的含义，此外氰基乙基，或与N原子一起代表5-或6-元环，任选与另外的N或 O原子，n为0〜12的整数。
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公开(公告)号：US5324777A
公开(公告)日：1994-06-28
申请号：US16336
申请日：1993-02-11
IPC分类号： C08G18/08 , C08B13/00 , C08B15/06 , C08B31/00 , C08F8/32 , C08F8/44 , C08G18/00 , C08G73/00 , C08G63/48 , C08F8/00 , C08G63/91
摘要： The invention relates to a process for the production of polymers containing ammonium groups in which OH-functional polymers are first reacted with isocyanates corresponding to general formula IOCN--R--CH.sub.2 --X Iin which R represents C.sub.2-11 alkylene or arylene and X represents halogen, to form urethanes and the urethanes are subsequently reacted with tertiary aliphatic amines corresponding to formula II ##STR1## in which R.sup.1 to R.sup.3 may be the same or different.
摘要翻译： 本发明涉及生产含铵基团的聚合物的方法，其中OH官能聚合物首先与对应于通式I OCN-R-CH 2-XI的异氰酸酯反应，其中R代表C2-11亚烷基或亚芳基，X代表 卤素，以形成氨基甲酸酯，然后将氨基甲酸酯与对应于式II的叔脂族胺反应，其中R 1至R 3可以相同或不同。
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9.发明授权Water-soluble biodegradable hydroxyalkyl cellulose-2-hydroxycarboxylic acid esters which can flocculate 失效水溶性可生物降解的羟烷基纤维素-2-羟基羧酸酯，可以絮凝公开(公告)号：US06559300B1
公开(公告)日：2003-05-06
申请号：US09462730
申请日：2000-01-11
申请人： Joachim Simon , Hanns-Peter Müller , Rainhard Koch , Volkhard Müller , Jürgen Engelhardt , Klaus Szablikowski , Wolfgang Koch
发明人： Joachim Simon , Hanns-Peter Müller , Rainhard Koch , Volkhard Müller , Jürgen Engelhardt , Klaus Szablikowski , Wolfgang Koch
IPC分类号： C08B300
CPC分类号： C04B24/383 , A61K8/731 , A61K2800/5422 , A61Q19/00 , C08B13/00 , C08L1/10 , C09D7/43 , C09D9/00
摘要： A water-soluble, biodegradable hydroxyalkyl cellulose-2-hydroxycarboxylic acid ester is disclosed. The hydroxyalkyl cellulose-2-hydroxycarboxylic acid ester has: (i) a molecular degree of substitution of the hydroxyalkyl group of less than 1.5 (MShydroxyalkyl
摘要翻译： 公开了一种水溶性的可生物降解的羟烷基纤维素-2-羟基羧酸酯。 羟烷基纤维素-2-羟基羧酸酯具有：（i）羟烷基的分子取代度小于1.5（MShroroxalkyl <1.5）; 和（ii）2-羟基羧酸基团的分子取代度大于0.4且小于3（0.4
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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
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。
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