公开(公告)号：US06392035B1

公开(公告)日：2002-05-21

申请号：US09403713

申请日：1999-11-10

申请人： Ties Karstens ,  Armin Stein ,  Hans Steinmeier

发明人： Ties Karstens ,  Armin Stein ,  Hans Steinmeier

IPC分类号： C08B1100

CPC分类号： C08B3/00 ,  C08B11/00

摘要： The invention concerns reactive cellulose, i.e. cellulose having in particular a very low degree of crystallinity obtainable with a high degree of purity. Said novel reactive cellulose is particularly used as raw material for making cellulose ethers. The invention is characterized in that the reactive cellulose is substituted by organic groups according to a degree of substitution, DS, of less than 0.2, preferably between 0.04 and 0.2.

摘要翻译： 本发明涉及反应性纤维素，即具有非常低的结晶度的纤维素，其可以以高纯度获得。 所述新型反应性纤维素特别用作制备纤维素醚的原料。 本发明的特征在于反应性纤维素根据取代度DS（小于0.2，优选0.04-0.2）被有机基团取代。

公开(公告)号：US06555678B1

公开(公告)日：2003-04-29

申请号：US09530188

申请日：2000-09-25

申请人： Christian Allandrieu ,  Lucile Gambut ,  Philippe Karrer ,  Ties Karstens ,  Gerard Mignani ,  Armin Stein

发明人： Christian Allandrieu ,  Lucile Gambut ,  Philippe Karrer ,  Ties Karstens ,  Gerard Mignani ,  Armin Stein

IPC分类号： C08B1600

CPC分类号： D01F2/24 ,  D01F2/00

摘要： A method has been developed for making regenerated cellulose yarn. The method includes the steps of spinning a solution derived from cellulose or a cellulose derivative in a molten state through at least one extrusion die, then regenerating the cellulose by treating the resulting yarn, wherein a silylated cellulose derivative is prepared by reaction with a silylating agent; the silylated cellulose is extracted from the synthesis reaction medium; then spun through at least an extrusion die; and the resultant yarn treated with a desilylation agent to regenerate the cellulose and a siloxane. The resulting cellulose yarns or fibers may be used for making woven or knitted textile surfaces or non-woven surfaces. Said yarns or fibers are also useful as reinforcing fibers in elastomeric materials and more particularly, in tires.

摘要翻译： 已经开发了用于制备再生纤维素纱线的方法。 该方法包括以下步骤：通过至少一个挤出模头将来自纤维素或纤维素衍生物的溶液通过至少一个挤出模头纺丝，然后通过处理所得纱线再生纤维素，其中通过与甲硅烷基化试剂反应制备甲硅烷基化纤维素衍生物 ; 从合成反应介质中提取甲硅烷基化纤维素; 然后通过至少一个挤出模头旋转; 用脱甲基剂处理得到的纱线再生纤维素和硅氧烷。 所得到的纤维素纱线或纤维可用于制造机织或针织织物表面或无纺织物表面。 所述纱线或纤维也可用作弹性体材料中的增强纤维，更具体地，在轮胎中。

公开(公告)号：US06348590B1

公开(公告)日：2002-02-19

申请号：US09297227

申请日：1999-05-28

申请人： Ties Karstens ,  Armin Stein

发明人： Ties Karstens ,  Armin Stein

IPC分类号： C08B3700

CPC分类号： C08B37/0096 ,  A23L29/238 ,  A61K8/737 ,  A61Q19/00

摘要： A method for processing guar endosperm in which guar splits are brought into contact with an amount of liquid ammonia at least sufficient to wet the guar splits at a pressure higher than atmospheric pressure and at a temperature of at least 25° C. The remaining available guar split/liquid ammonia system volume is increased in an explosion like manner by reducing the pressure by at least about 5 bars resulting in the sheaths of the guar splits being torn open to result in a product that can be processed more easily, such as by grinding.

摘要翻译： 处理瓜尔乳糖的方法，其中瓜尔胶分裂成与至少足以在高于大气压的压力下和至少25℃的温度下润湿瓜尔胶的量的液氨接触。剩余的可用瓜尔胶 通过将压力降低至少约5巴，分解/液体氨系统体积以类似爆炸的方式增加，导致瓜尔胶的护套被撕开，导致可以更容易地加工的产品，例如通过研磨 。

公开(公告)号：US07198695B2

公开(公告)日：2007-04-03

申请号：US10469371

申请日：2002-02-08

申请人： Gerhard Kettenbach ,  Armin Stein

发明人： Gerhard Kettenbach ,  Armin Stein

IPC分类号： B01D11/02 ,  D21C3/20 ,  D21C9/02

CPC分类号： D21C3/22 ,  C08B1/00 ,  C08B37/0057

摘要： The invention relates to a method for separating hemicelluloses from a biomass containing hemicelluloses. The method includes the steps of: a) extracting the hemicelluloses from the biomass containing hemicelluloses by treating them with a complex compound in an aqueous solution, and forming a soluble hemicellulose complex, and b) separating the complexed hemicelluloses from the biomass. The method is especially suitable for producing high-quality chemical conversion pulp from raw cellulose. The products produced with the method of the invention have a high degree of purity, and the method is extremely economical and causes few emissions. Hemicelluloses in a pure form can be obtained as by-products of the method.

摘要翻译： 本发明涉及从含有半纤维素的生物质中分离半纤维素的方法。 该方法包括以下步骤：a）通过在水溶液中用配合物处理它们，并形成可溶性半纤维素复合物，并从生物质中分离出络合的半纤维素，从含有半纤维素的生物质中提取半纤维素。 该方法特别适用于生产原料纤维素的高品质化学转化纸浆。 用本发明方法生产的产品具有高纯度，该方法极为经济，导致排放少。 可以以该方法的副产物获得纯形式的半纤维素。