公开(公告)号：EP1521192A4

公开(公告)日：2008-01-02

申请号：EP03762858

申请日：2003-03-06

申请人： FUJITSU LTD

发明人： IKEDA NORIKO

IPC分类号： G06F17/50 ,  G06F19/00 ,  G06F19/16 ,  C07H3/00 ,  C08B1/00

CPC分类号： G06F19/707

摘要： The present invention provides a three-dimensional structure analysis method that extracts monosaccharide bonding patterns significant for elucidation of the formation of the three-dimensional structures of polysaccharides when the alignments of local structures are given for those polysaccharides. This three-dimensional structure analysis method comprises inputting the alignment of the local structures of a polysaccharide; inputting coordinate data relating to polysaccharides to which each local structure belongs; detecting interactions between substituents of each hydroxyl group within a local structure and hydroxyl groups that serve as acceptors of other monosaccharides; evaluating the interaction patterns; and outputting information relating to the interactions.

摘要翻译： 本发明提供了一种三维结构分析方法，当对这些多糖给出局部结构的排列时，该方法提取对于阐明多糖的三维结构的形成有重要意义的单糖结合模式。 该三维结构分析方法包括输入多糖局部结构的排列; 输入与每个局部结构所属的多糖有关的坐标数据; 检测局部结构内每个羟基的取代基与用作其他单糖受体的羟基之间的相互作用; 评估交互模式; 并输出与交互有关的信息。

公开(公告)号：EP1668180B1

公开(公告)日：2007-08-01

申请号：EP04769444.3

申请日：2004-09-22

申请人： INTERNATIONAL PAPER COMPANY

发明人： TAN, Zheng, c/o International Paper Company ,  NGUYEN, Xuan, c/o International Paper Company ,  MAURER, Karen, L., c/o International Paper Company

IPC分类号： D21C9/16 ,  C08B1/00 ,  D21B1/14 ,  D21H11/16

CPC分类号： D21C9/007 ,  D21B1/16 ,  D21C3/006 ,  D21C3/02 ,  D21C9/002 ,  D21C9/004 ,  D21C9/1036 ,  D21C9/163 ,  Y10T428/298

摘要： A method for alteration of the morphology of cellulose fibers, particularly softwood fibers, by (a) subjecting the fibers to a metal ion-activated peroxide treatment carried out at a pH of between about 1 and about 9, preferably between 3 and 7, and (b) subjecting the treated fibers to a refining treatment thereby converts SW fibers to HW-like fibers in many respects. The metal ion-activated peroxide treatment has been noted to act on pulp cellulose and hemi-cellulose, causing oxidation and oxidative degradation of cellulose fibers. The chemical treatment of the pulp, taken alone, is not sufficient to attain the desired modification of the morphology of the fibers, however, subsequent refining or like mechanical treatment of the chemically-treated fibers to achieve a given degree of refinement of the fibers requires dramatically less refining energy to achieve a desired end point of refinement and to impart other desirable properties to the pulp. A pulp of modified SW fibers and a mixture of HW fibers and modified HW fibers are disclosed.

公开(公告)号：EP1803735A1

公开(公告)日：2007-07-04

申请号：EP06026867.9

申请日：2006-12-23

申请人： Shin-Etsu Chemical Co., Ltd.

发明人： Narita, Mitsuo c/o Specialty Chem. Research Center ,  Tabata,Masaki c/o Specialty Chem. Research Center ,  Yoshida,Atsushi c/o Specialty Chem.Research Center ,  Umezawa,Hiroshi c/o Specialty Chem.Research Center

IPC分类号： C08B1/08 ,  C08B1/10

CPC分类号： C08B1/08 ,  C08B1/10 ,  C08B11/00 ,  C08B11/16 ,  C08B11/193

摘要： Provided is a method for efficiently preparing alkali cellulose having a uniform alkali distribution therein. More specifically, provided are a method for preparing alkali cellulose comprising steps of bringing pulp into continuous contact with an alkali metal hydroxide solution in a bucket conveyor type contactor to generate a contact mixture, and draining the contact mixture; a method for preparing a cellulose ether comprising use of the alkali cellulose thus prepared; and an apparatus for preparing alkali cellulose comprising a bucket conveyor contactor comprising at least one inlet port for introducing pulp and an alkali metal hydroxide solution at one end and at least one outlet port for discharging a contact mixture wherein the pulp and the alkali metal hydroxide solution can be moved from one end to the other end while bringing them into contact with each other to generate the contact mixture; and a drainer for separating a cake from the contact mixture discharged from the outlet port.

摘要翻译： 本发明提供有效地制备其中具有均匀碱分布的碱纤维素的方法。 更具体而言，提供了一种制备碱纤维素的方法，包括以下步骤：使纸浆与斗式输送机型接触器中的碱金属氢氧化物溶液连续接触以产生接触混合物，并排出接触混合物; 一种制备纤维素醚的方法，包括使用如此制备的碱纤维素; 以及一种用于制备碱纤维素的装置，该装置包括斗式输送机接触器，该接触器包括至少一个用于在一端引入纸浆和碱金属氢氧化物溶液的入口和至少一个用于排出接触混合物的出口，其中纸浆和碱金属氢氧化物溶液 可以从一端移动到另一端，同时使它们彼此接触以产生接触混合物; 以及用于从出口排出的接触混合物中分离滤饼的排水器。

公开(公告)号：EP1678211A2

公开(公告)日：2006-07-12

申请号：EP04796809.4

申请日：2004-10-29

申请人： THE UNIVERSITY OF KANSAS

发明人： STELLA, Valentino, J. ,  TONGIANI, Serena

IPC分类号： C08B1/00

CPC分类号： C08B37/0015 ,  A61K31/724 ,  A61K47/6951 ,  B82Y5/00 ,  C08B37/0012

摘要： A sulfoalkyl ether-alkyl ether cyclodextrin (SAE-AE-CD) derivative is provided. The SAE-AE-CD possesses advantages over known SAE-CD and AE-CD derivatives as well as over the parent cyclodextrin by being more water soluble and less membrane disturbing. The SAE-AE-CD includes at least one sulfoalkyl ether group and at least one alkyl ether group even though the degree of substitution for the functional groups can be different. The SAE functional group can be present in molar excess over the AE functional group and vice versa. The total degree of substitution of the cyclodextrin, with respect to both functional groups, can be varied such that a minority or a majority of the hydroxyl moieties off the CD are derivatized. The SAE-AE-CD derivative can be used to solubilize compounds with insufficient water solubility. In some cases, they also stabilize compounds in solution against degradation or to solubilize degradation products formed during degradation. In addition, SAE-AE-CD can also be used for other purposes such as osmotic agents, agents used to mask the taste of problematic drugs. Surprisingly, while AE-CDs are known to be toxic by being membrane disturbing, SAE-AE-CDs are less membrane disturbing and therefore have greater safety.

公开(公告)号：EP1123190B1

公开(公告)日：2006-06-21

申请号：EP99949241.6

申请日：1999-10-18

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： BECKERS, Stefan, D. ,  WEIGEL, Peter ,  FINK, Hans-Peter ,  DOSZ, Michael ,  PURZ, Hans-Joachim

IPC分类号： B29C47/00 ,  B29C47/10 ,  B29C55/28 ,  B01D71/10 ,  C08B1/00 ,  C08J5/18

CPC分类号： C08J5/18 ,  B01D67/0011 ,  B01D67/0025 ,  B01D69/04 ,  B01D69/06 ,  B01D71/10 ,  B01D2325/022 ,  B29C47/0026 ,  B29C47/0057 ,  B29C47/0059 ,  B29C47/8895 ,  B29C55/00 ,  B29K2001/00 ,  B29K2995/0072 ,  C08J2301/02

摘要： A process and apparatus used in cellulose extrusion is disclosed. In particular, the process discloses using an inert gas blanket above a cellulose solution wherein the inert gas blanket reduces any undesirable colour variations in the extruded product. Furthermore, the apparatus discloses draw means positioned downstream of the extrusion means to continuously draw the extruded cellulose film from the extrusion means. Apparatus is also disclosed wherein a tubular member is used to receive an extruded blown tube. The product formed using the process and apparatus described herein which has a substantially uniform distribution of fine pores throughout its cross-section is also discussed.

公开(公告)号：EP1458805A2

公开(公告)日：2004-09-22

申请号：EP02784000.8

申请日：2002-10-03

申请人： The University of Alabama ,  PG Research Foundation, Inc.

发明人： SWATLOSKI, Richard, Patrick ,  ROGERS, Robin, Don ,  HOLBREY, John, David

IPC分类号： C08L1/02 ,  C08B1/00 ,  C08B16/00

CPC分类号： C08J3/096 ,  C08B1/003 ,  C08J3/28 ,  C08J2301/02 ,  C08L1/06 ,  C12N11/12 ,  D01F2/02 ,  Y10T428/31772 ,  Y10T428/31971

摘要： Cellulose is dissolved in an ionic liquid without derivatization, and is regenerated in a range of structural forms without requiring the use of harmful or volatile organic solvents. Cellulose solubility and the solution properties can be controlled by the selection of the ionic liquid constituents, with small cations and halide or pseudohalide anions favoring solution.

摘要翻译： 纤维素在不衍生化的情况下溶解在离子液体中，并且在一定范围的结构形式下再生，而不需要使用有害或挥发性有机溶剂。 纤维素溶解度和溶液性质可以通过选择离子液体组分来控制，小阳离子和卤化物或拟卤化物阴离子有利于溶液。

公开(公告)号：EP1301542A4

公开(公告)日：2004-08-04

申请号：EP01959793

申请日：2001-07-10

申请人： THORRE TECHNOLOGIES LLC

发明人： VAN THORRE DOUG

IPC分类号： C07C229/02 ,  C07H1/00 ,  C08B1/00 ,  C08B16/00 ,  C08B37/00 ,  C08H8/00 ,  C12S3/00 ,  C12S3/04 ,  D21C5/00 ,  D21C7/12 ,  C08B11/00

CPC分类号： C08H8/00 ,  C08B1/00 ,  C08B37/006 ,  D21C5/00 ,  Y10S435/80

公开(公告)号：EP1245576A4

公开(公告)日：2004-05-19

申请号：EP00970103

申请日：2000-10-26

申请人： ASAHI CHEMICAL IND

发明人： YAMANE CHIHIRO ,  OKAJIMA KUNIHIKO ,  SHIMIZU SEIJI

IPC分类号： C08B1/00 ,  D01F2/02 ,  C08B1/08

CPC分类号： C08B1/003 ,  D01F2/02 ,  Y10T428/249924 ,  Y10T428/2913 ,  Y10T428/2965

摘要： A cellulose dope comprising an aqueous caustic soda solution and a cellulose dissolved in the solution, characterized in that the concentration of caustic soda (CNa) is 6.5 to 11 wt.%, the cellulose content (CC) is 4 to 12 wt.%, and zero-shear viscosity of the cellulose dope ( eta 0), the cellulose content (CC), and the viscosity-average degree of polymerization of the cellulose satisfy the following relationship (1): eta 0 = kCC x DPC . In the relationship, eta 0 represents zero-shear viscosity of the cellulose dope (mPa.s); CC represents cellulose content of the cellulose dope (wt.%) DPC represents viscosity-average degree of polymerization of the cellulose in cellulose dope; K = 3.9 x 10 ; 5

公开(公告)号：EP1317573A1

公开(公告)日：2003-06-11

申请号：EP01955754.5

申请日：2001-08-13

申请人： Instytut Wlokien Chemicznych

发明人： STRUSZCZYK, Henryk ,  WAWRO, Dariusz ,  URBANOWSKI, Alojzy ,  MIKOLAJCZYK, Wlodzimierz ,  STAROSTKA, Pawel

IPC分类号： D01F2/02 ,  C08J5/18 ,  C08L1/02 ,  A22C13/00 ,  C08B1/00

CPC分类号： D01F2/02 ,  A22C13/0013 ,  C08L1/02 ,  C08L1/06 ,  D01D1/02

摘要： Process for producing fibres film, casings and other products from modified soluble cellulose wherein the initial cellulose is hydrothermally treated at a temperature in the 100-200 °C range, under a pressure in the range from 0.1 to 1.5 Mpa in a water/cellulose ratio on a weight basis of at least 1:1 in the presence of a complex activator composed of Lewis acids and/or bases and/or their salts in an amount of at least 0.0001% by weight calculated on cellulose. The obtained modified cellulose pulp after, a possible purification, is in a dry or never dried condition, dissolved in an aqueous solution of alkali metal hydroxides. The dissolving is carried out at a temperature not lower than 0 °C for 1-120 minutes to obtain a homogenous spinning solution with the cellulose concentration at least 1% by weight. The alkaline cellulose solution is filtered, deaerated and coagulated by contacting it with water or aqueous acidic solutions. The produced fibres, film, casings and other products are washed with water to a neutral reaction and finished in a standard way.

公开(公告)号：EP1224343A1

公开(公告)日：2002-07-24

申请号：EP00978960.3

申请日：2000-09-29

申请人： Alceru Schwarza GmbH

发明人： BAUER, Ralf-Uwe ,  KIND, Uwe

IPC分类号： D01F2/00 ,  C08J5/18 ,  C08L1/02 ,  C08B1/00

CPC分类号： D01F2/00

摘要： The invention relates to a method for producing cellulose shaped bodies such as fibers, filaments or films from TCF- or ECF bleached cellulose wherein cellulose is dissolved in an aqueous tertiary amine oxide to produce a formable cellulose solution. The cellulose solution is shaped and thereby the shaped body is formed by coagulation of the shaped solution. Said method is characterized in that in order to reduce the degree of cellulose degradation, TCF-bleached cellulose having a carboxyl group content in the range of 1 to 35 νmol/g or ECF-bleached cellulose having a carboxyl group content in the range of 1 to 50 νmol/g is employed. The inventive method enables said cellulose shaped-bodies to be produced having a reduced degree of cellulose degradation.