公开(公告)号：US07683110B2

公开(公告)日：2010-03-23

申请号：US11505278

申请日：2006-08-15

Applicant: Hartwig Schlesiger ,  Roland Bayer ,  Daniel Auriel ,  Jürgen Engelhardt ,  Frank Höhl ,  Erik-Andreas Klohr ,  Arne Henning Kull ,  Jörn-Bernd Pannek ,  Marc Oliver Schmidt

Inventor： Hartwig Schlesiger ,  Roland Bayer ,  Daniel Auriel ,  Jürgen Engelhardt ,  Frank Höhl ,  Erik-Andreas Klohr ,  Arne Henning Kull ,  Jörn-Bernd Pannek ,  Marc Oliver Schmidt

IPC: C08L1/26 ,  B02C17/00

CPC classification number: C04B24/383 ,  C04B40/0039 ,  C04B2103/0049 ,  C04B2103/44 ,  C04B2201/10 ,  C08J3/005 ,  C08J2301/28 ,  C08L1/26 ,  C08L1/28 ,  C08L1/284 ,  C08L33/02 ,  C08L33/08 ,  C08L33/10 ,  C08L33/20 ,  C08L51/02 ,  C04B24/2641 ,  C04B28/02 ,  C04B24/2652 ,  C08L2666/02 ,  C08L2666/24 ,  C08L2666/04 ,  C08L2666/26 ,  C08L2666/14

Abstract: The present invention relates to a process for preparing cellulose ether products which is characterized in that superabsorbent polymers (SAPs) are dried and milled, or mill-dried, conjointly with moist cellulose ether and also to the cellulose ether products resulting from this process.

Abstract translation: 本发明涉及一种制备纤维素醚产品的方法，其特征在于将超吸收性聚合物（SAP）与湿纤维素醚一起干燥和研磨或研磨干燥，并且还涉及由该方法得到的纤维素醚产物。

公开(公告)号：US06593468B1

公开(公告)日：2003-07-15

申请号：US09529705

申请日：2000-04-17

Applicant: Werner Lange ,  Bernd Schriewer ,  Friedrich-Karl Lampert ,  Wilhelm Oppermann ,  Jörn-Bernd Pannek ,  René Kiesewetter

Inventor： Werner Lange ,  Bernd Schriewer ,  Friedrich-Karl Lampert ,  Wilhelm Oppermann ,  Jörn-Bernd Pannek ,  René Kiesewetter

IPC: G10F0012

CPC classification number: C09D5/34 ,  A61K8/731 ,  A61K2800/5422 ,  A61K2800/5424 ,  A61Q19/00 ,  C04B24/383 ,  C08B11/00 ,  C08B11/12 ,  C08L1/284 ,  C09D7/65 ,  C09D7/69

Abstract: This invention relates to a process for producing a substantially fiber-free carboxymethyl cellulose which predominantly exhibits elastic properties, to the use thereof as a superabsorbent material, and to the use thereof as an adjuvant substance for achieving suitable rheological and water retention properties for the cosmetics, pharmaceutical and food sectors, and for industrial applications, e.g. as an additive for coating materials, for the sealing of cables and for use in tunnelling and in civil and underground engineering.

Abstract translation: 本发明涉及一种生产基本上无纤维的羧甲基纤维素的方法，其主要表现出弹性，其作为超吸收材料的用途，以及其用作为化妆品达到合适的流变学和保水性的辅助物质的用途 制药和食品部门，以及工业应用，例如 作为涂料的添加剂，用于密封电缆和用于隧道掘进和民用和地下工程。

公开(公告)号：US07402668B2

公开(公告)日：2008-07-22

申请号：US10197070

申请日：2002-07-17

Applicant: Wolfgang Dannhorn ,  Erik-Andreas Klohr ,  Martin Kowollik ,  Hartwig Schlesiger ,  Jörn-Bernd Pannek

Inventor： Wolfgang Dannhorn ,  Erik-Andreas Klohr ,  Martin Kowollik ,  Hartwig Schlesiger ,  Jörn-Bernd Pannek

IPC: C07H1/00 ,  C08B11/08 ,  C08B11/02 ,  C08B1/00

CPC classification number: C08B11/193

Abstract: A process of preparing alkylhydroxyalkylcellulose (e.g., methylhydroxyethylcellulose and methylhydroxypropylcellulose) by reaction of cellulose in the presence of alkali metal hydroxide with an alkylating agent and a hydroxyalkylating agent is described. The process includes: (a) alkalizing cellulose by means of 0.9 to 2.9 equivalents of an alkali metal hydroxide I/AGU of the cellulose in the form of an aqueous alkali metal hydroxide solution, in the presence of a suspension medium containing at least 0.2 equivalents of an alkylating agent I/AGU of the cellulose; (b) reacting the alkalized cellulose of step (a) with alkylating agent I and a hydroxyalkylating agent at a temperature above 65° C.; (c) adding additional alkali metal hydroxide 11 in the form of an aqueous alkali metal hydroxide solution; and (d) adding additional alkylating agent 11 in an amount of at least the absolute value of the difference between (i) the number of equivalents of alkylating agent I/AGU of the cellulose already added, and (ii) the total number of equivalents of alkali metal hydroxide/AGU of the cellulose added. Additional alkylating agent 11 is not added in step (d) if (i) the number of equivalents of alkylating agent I/AGU of the cellulose already added exceeds (ii) the total number of equivalents of alkali metal hydroxide/AGU of the cellulose already added. In a further step (e), the alkylhydroxyalkylcellulose is isolated from the reaction mixture. The isolated alkylhydroxyalkylcellulose may be optionally purified.

Abstract translation: 描述了通过在碱金属氢氧化物存在下纤维素与烷基化剂和羟烷基化剂反应来制备烷基羟烷基纤维素（例如甲基羟乙基纤维素和甲基羟丙基纤维素）的方法。 该方法包括：（a）在含有至少0.2当量的悬浮介质存在下，通过0.9至2.9当量的碱金属氢氧化物I / AGU将纤维素碱化为碱金属氢氧化物水溶液形式的纤维素碱化纤维素 的纤维素的烷基化剂I / AGU; （b）在高于65℃的温度下使步骤（a）的碱化纤维素与烷基化剂I和羟烷基化剂反应; （c）加入碱金属氢氧化物水溶液形式的另外的碱金属氢氧化物11; 和（d）添加额外的烷基化剂11，其量至少为（i）已经加入的纤维素的烷基化剂I / AGU的当量数之间的差异的绝对值，和（ii）总当量数 的碱金属氢氧化物/ AGU的纤维素加入。 如果（i）已经加入的纤维素的烷基化剂I / AGU的当量数超过（ii）已经在纤维素中的碱金属氢氧化物/ AGU的当量的总数，则在步骤（d）中不加入另外的烷基化剂11 添加。 在另外的步骤（e）中，从反应混合物中分离烷基羟烷基纤维素。 分离的烷基羟烷基纤维素可以任选地纯化。

公开(公告)号：US07041168B2

公开(公告)日：2006-05-09

申请号：US10914401

申请日：2004-08-09

Applicant: Hartwig Schlesiger ,  Roland Bayer ,  Frank Höhl ,  Arne Henning Kull ,  Jürgen Engelhardt ,  Burkhard Kressdorf ,  Jörn-Bernd Pannek

Inventor： Hartwig Schlesiger ,  Roland Bayer ,  Frank Höhl ,  Arne Henning Kull ,  Jürgen Engelhardt ,  Burkhard Kressdorf ,  Jörn-Bernd Pannek

IPC: C04B24/10 ,  C08L1/08 ,  C08L1/28

CPC classification number: C04B24/383 ,  C04B28/02 ,  C04B2111/00129 ,  C08B15/005 ,  C04B20/0048

Abstract: A method of preparing construction material systems is described. The process includes extruding a composition of construction materials and an irreversibly crosslinked cellulose derivative that is prepared by a particular process.

Abstract translation: 描述了一种制备建筑材料系统的方法。 该方法包括挤出由特定方法制备的建筑材料组合物和不可逆交联的纤维素衍生物。

公开(公告)号：US07012139B2

公开(公告)日：2006-03-14

申请号：US10303282

申请日：2002-11-25

Applicant: Hartwig Schlesiger ,  Wolfgang Dannhorn ,  Jörn-Bernd Pannek ,  Volkhardt Müller ,  Frank Höhl

Inventor： Hartwig Schlesiger ,  Wolfgang Dannhorn ,  Jörn-Bernd Pannek ,  Volkhardt Müller ,  Frank Höhl

IPC: A61K31/717 ,  C08B11/20

CPC classification number: C08B15/005 ,  C08B11/20 ,  C08L1/26 ,  C08L1/28 ,  C08L1/284 ,  C08L1/286 ,  C09J101/26 ,  C09J101/286

Abstract: A process for preparing cellulose ethers having delayed dissolution in water is described. The process comprises: (a) treating a moist cellulose ether with a solution comprising a dialdehyde; (b) adding an aqueous salt solution to the moist cellulose ether, such that said cellulose ether has a pH of from 6.0 to 8.0, the aqueous salt addition being performed at least one of, (i) prior to step (a), (ii) concurrently with step (a), and (iii) subsequent to step (a); and (c) drying and comminuting the treated cellulose ether of step (b). The cellulose ether, or mixtures of cellulose ethers, prepared by the method of the present invention may be used as protective colloids, thickeners and adhesives.

公开(公告)号：US06891034B2

公开(公告)日：2005-05-10

申请号：US09923011

申请日：2001-08-03

Applicant: Wolfgang Dannhorn ,  Hartwig Schlesiger ,  Jörn-Bernd Pannek ,  Gerolf Weissach

Inventor： Wolfgang Dannhorn ,  Hartwig Schlesiger ,  Jörn-Bernd Pannek ,  Gerolf Weissach

IPC: C08B11/08 ,  C08B11/193 ,  C08B11/00 ,  C08B11/02

CPC classification number: C08B11/193

Abstract: Described is a process of preparing alkylhydroxyalkyl cellulose, e.g., methylhydroxypropyl cellulose (MHPC). The process includes: (a) alkylating cellulose with an aqueous caustic solution containing from 1.5 to 5.5 equivalents of alkali metal hydroxide, e.g., NaOH, per anhydroglucose unit (AGU) of said cellulose, in the presence of a suspension agent, e.g., dimethyl ether, which contains alkyl halide, e.g., methyl chloride, in an amount of from (equivalents of alkali metal hydroxide per AGU minus 1.4) to (equivalents of alkali metal hydroxide per AGU plus 0.8); (b) reacting the alkalised cellulose of step (a) with one or more alkylene oxides, e.g., propylene oxide, at a temperature higher than 65° C., e.g., 85° C.; (c) adding alkyl halide, to the product of step (b), in an amount of at least the difference between (i) the equivalents of alkyl halide per AGU in step a) and (ii) the equivalents of alkali metal hydroxide added per AGU in step (a), provided that the amount of additionally added alkyl halide is at least 0.2 equivalents per AGU; and (d) isolating alkylhydroxyalkyl cellulose from the reaction mixture of step (c). Optionally the isolated alkylhydroxyalkyl cellulose may be purified.

Abstract translation: 描述了制备烷基羟烷基纤维素的方法，例如甲基羟丙基纤维素（MHPC）。 该方法包括：（a）在悬浮剂例如二甲基甲酰胺存在下，用含有1.5至5.5当量碱金属氢氧化物（例如NaOH）的所述纤维素的每个脱水葡萄糖单元（AGU）的含水苛性碱溶液对纤维素进行烷基化 醚，其含有（每当AGU的碱金属氢氧化物的当量减去1.4）的烷基卤化物，例如甲基氯，（每个AGU的碱金属氢氧化物加上0.8当量）; （b）使步骤（a）的碱化纤维素与一种或多种环氧烷如环氧丙烷在高于65℃，例如85℃的温度下反应; （c）将步骤（b）中的烷基卤添加至（i）步骤a）中每个AGU的烷基卤的当量与（ii）加入的碱金属氢氧化物的当量之间的至少差异的量 步骤（a）中的每个AGU，条件是额外添加的烷基卤化物的量为每个AGU至少0.2当量; 和（d）从步骤（c）的反应混合物中分离出烷基羟烷基纤维素。 任选地，分离的烷基羟烷基纤维素可以被纯化。