公开(公告)号：US06703497B1

公开(公告)日：2004-03-09

申请号：US09787272

申请日：2001-06-25

申请人： Laurence Ladouce ,  Etienne Fleury ,  Cécile Gousse ,  Robert Cantiani ,  Henri Chanzy ,  Gérard Excoffier

发明人： Laurence Ladouce ,  Etienne Fleury ,  Cécile Gousse ,  Robert Cantiani ,  Henri Chanzy ,  Gérard Excoffier

IPC分类号： C08B1100

CPC分类号： C08B11/00 ,  C08B15/00

摘要： The invention concerns cellulose microfibrils with modified surface, characterised in that the hydroxyl functions present at the surface of the microfibrils are etherified with at least an organic compound comprising at least a function capable of reacting with said hydroxyl functions, and the degree of surface substitution (DSs) is at least 0.05. The invention also concerns a method for obtaining said microfibrils and their use as agent for modifying viscosity, texture and/or as reinforcing filler.

摘要翻译： 本发明涉及具有改性表面的纤维素微原纤维，其特征在于，存在于微原纤维表面的羟基官能团与至少一种至少包含能够与所述羟基官能团反应的功能的有机化合物和表面取代度 DS）至少为0.05。 本发明还涉及获得所述微原纤维的方法及其用作改性粘度，质地和/或作为增强填料的试剂的用途。

公开(公告)号：US06372901B1

公开(公告)日：2002-04-16

申请号：US08486370

申请日：1995-06-07

申请人： Emmett Malone Partain, III ,  George Lewis Brode, II ,  Richard Charles Hoy

发明人： Emmett Malone Partain, III ,  George Lewis Brode, II ,  Richard Charles Hoy

IPC分类号： C08B1100

CPC分类号： C08B11/193 ,  C08B11/16 ,  C08B13/00 ,  C08B15/06 ,  C08L1/284 ,  C08L1/30 ,  C08L5/00 ,  C09D7/43

摘要： Polysaccharides, including hydroxyethyl cellulose, having alkyl-aryl hydrophobic substitution, provide latex compositions, such as paints, with improved rheology and stability. Improved processes for producing such polysaccharides are also provided.

摘要翻译： 具有烷基 - 芳基疏水取代基的多糖，包括羟乙基纤维素，提供具有改进的流变性和稳定性的胶乳组合物，如油漆。 还提供了制备这种多糖的改进方法。

公开(公告)号：US06627751B1

公开(公告)日：2003-09-30

申请号：US09455103

申请日：1999-12-06

申请人： Jan Gerardus Batelaan ,  Berend Jan Dijk ,  Peter Marten Van Der Horst

发明人： Jan Gerardus Batelaan ,  Berend Jan Dijk ,  Peter Marten Van Der Horst

IPC分类号： C08B1100

CPC分类号： C08B11/20 ,  C08B11/193 ,  C08B31/08 ,  C08B37/0096

摘要： A hydrophobically modified anionic cellulose ether obtainable by a process comprising reacting an alkali metal cellulose with at least three alkylating reagents A, B, and C. Reagent A is selected from the group of haloacetic acids, alkali metal haloacetates, alkali metal vinyl sulfonates, and vinyl sulfonic acid. Reagent B has the formula R1—(OCH2CH(R2))n—P, wherein R1 represents a C2-C7 group, R2 is hydrogen or a methyl group, n is 0-2, and P represents a glycidyl ether group, a 3-halo-2-hydroxypropyl ether group, a 1,2-epoxy group, or a halide, and reagent C has the formula R3—(OCH2CH(R2))m—P, wherein R3 represents a C8-C30 group, m is 0-10, and R2 and P have the meaning as described above.

摘要翻译： 通过包括使碱金属纤维素与至少三种烷基化试剂A，B和C反应的方法获得的疏水改性阴离子纤维素醚。试剂A选自卤代乙酸，碱金属卤代乙酸盐，碱金属乙烯基磺酸盐和 乙烯基磺酸。 试剂B具有式R 1 - （OCH 2 CH（R 2））n P，其中R 1表示C 2 -C 7基团，R 2是氢或甲基，n是0-2， 并且P表示缩水甘油醚基，3-卤代-2-羟丙基醚基，1,2-环氧基或卤化物，试剂C具有式R 3 - （OCH 2 CH（R 2） ）mP，其中R 3表示C8-C30基团，m为0-10，R 2和P具有如上所述的含义。

公开(公告)号：US06509461B2

公开(公告)日：2003-01-21

申请号：US09788116

申请日：2001-02-16

申请人： Hartwig Schlesiger ,  Martin Morning ,  Gunter Weber ,  René Kiesewetter ,  Rudolf Lelgemann

发明人： Hartwig Schlesiger ,  Martin Morning ,  Gunter Weber ,  René Kiesewetter ,  Rudolf Lelgemann

IPC分类号： C08B1100

CPC分类号： C08J3/12 ,  C08B11/20 ,  C08J2301/08 ,  C08L1/00

摘要： The present invention relates to a new, particularly economical process for producing particulate water-soluble cellulose derivatives. The process involves forming a feed composition of swollen and/or dissolved cellulose derivative, and water. The feed composition is contacted with a carrier and heat exchange gas, in a sieve-free high rotational speed gas jet impact mill, and the cellulose derivative of the feed composition is converted into a solid state form of finely particulate particles. The particulate cellulose derivative is then separated from the heat exchange gas and carrier gas, and optionally dried. The mill drying and the particulate cellulose derivative product are influenced by establishing a specific water content in the swollen and/or dissolved cellulose derivative.

摘要翻译： 本发明涉及用于生产颗粒状水溶性纤维素衍生物的新的，特别经济的方法。 该方法包括形成溶胀和/或溶解的纤维素衍生物和水的进料组合物。 在无筛的高转速气体冲击式研磨机中，将进料组合物与载体和热交换气体接触，并将进料组合物的纤维素衍生物转化成固态形式的细颗粒。 然后将颗粒状纤维素衍生物与热交换气体和载气分离，并任选地干燥。 研磨干燥和颗粒状纤维素衍生物产物受到溶胀和/或溶解的纤维素衍生物中特定含水量的影响。

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：US06818657B1

公开(公告)日：2004-11-16

申请号：US09937673

申请日：2001-09-28

申请人： Daniel Redoules ,  Roger Tarroux ,  Didier Fournier ,  Jean-Jacques Perie

发明人： Daniel Redoules ,  Roger Tarroux ,  Didier Fournier ,  Jean-Jacques Perie

IPC分类号： C08B1100

CPC分类号： C07H15/207 ,  A61K8/671 ,  A61Q19/02 ,  A61Q19/08 ,  Y10S514/859

摘要： The present invention relates to a ternary glucosyl complex which is a bioprecursor of at least one retinoic active ingredient for percutaneous application, having formula (I), wherein E represents a linear hydrocarbon spacer group that is branched or cyclized and has an aliphatic or aromatic content capable of containing one or several heteroatoms of oxygen and carrying one or several carbonyl groups; A represents a radical of a molecule of said retinoic active ingredient linked to the spacer group by a carboxylate function and n=1 or 2.

摘要翻译： 本发明涉及一种三元葡萄糖基复合物，其是用于经皮施用的至少一种视黄醇活性成分的生物前体，具有式（I），其中E表示支化或环化并具有脂族或芳族含量的直链烃间隔基 能够含有一个或多个氧原子并携带一个或几个羰基; A表示通过羧酸盐官能团连接到间隔基团的所述视黄酸活性成分的分子的基团，n = 1或2。

公开(公告)号：US06365732B1

公开(公告)日：2002-04-02

申请号：US09613411

申请日：2000-07-10

申请人： Doug Van Thorre

发明人： Doug Van Thorre

IPC分类号： C08B1100

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

摘要： The present invention includes a process for extracting a stereoisomer fro biomass. The method comprises providing biomass and subjecting the biomass to substantially instantaneous pressurization and depressurization to separate cellulose, hemicellulose, and lignin from the biomass. The hemicellulose is hydrolyzed to form hemicellulose hydrolysates. The hydrolysates are separated using chromatography.

摘要翻译： 本发明包括从生物质中提取立体异构体的方法。 该方法包括提供生物质并使生物质基本上瞬时加压和减压以从生物质分离纤维素，半纤维素和木质素。 半纤维素被水解以形成半纤维素水解物。 使用色谱分离水解产物。

公开(公告)号：US06320043B1

公开(公告)日：2001-11-20

申请号：US09341412

申请日：1999-07-08

申请人： Gunter Weber ,  Detmar Redeker ,  Bernd Klinksiek ,  Jürgen Hinderer ,  Benno Ulfik

发明人： Gunter Weber ,  Detmar Redeker ,  Bernd Klinksiek ,  Jürgen Hinderer ,  Benno Ulfik

IPC分类号： C08B1100

CPC分类号： C08B11/20

摘要： The invention relates to a new, particularly economic process for preparing pulverulent polysaccharide derivatives, in particular cellulose derivatives, having a thermal flocculation point; the process comprises soaking or dissolving the polysaccharide derivative in a solvent or mixed solvent, dividing/comminuting the soaked or dissolved polysaccharide derivative by thermal and/or mechanical liquid separation and an optional drying step.

摘要翻译： 本发明涉及一种制备具有热絮凝点的粉状多糖衍生物，特别是纤维素衍生物的新的，特别经济的方法; 该方法包括将多糖衍生物浸泡或溶解在溶剂或混合溶剂中，通过热和/或机械液体分离和任选的干燥步骤分离/粉碎浸泡或溶解的多糖衍生物。

公开(公告)号：US06313287B1

公开(公告)日：2001-11-06

申请号：US09427351

申请日：1999-10-26

申请人： Reinhard Doenges ,  Juergen Kirchner

发明人： Reinhard Doenges ,  Juergen Kirchner

IPC分类号： C08B1100

CPC分类号： C09D5/024 ,  C08L1/28 ,  C09D7/43

摘要： Water-soluble sulfoalkyl-containing hydrophobically modified cellulose ethers, processes for preparing them, and their use in emulsion paints The present invention relates to water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.1 sulfoalkyl group per anhydroglucose unit, to processes for preparing them and to the use of water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.4 sulfoalkyl group per anhydroglucose unit in emulsion paints.

摘要翻译： 含水溶性磺基烷基的疏水改性纤维素醚，其制备方法及其在乳液漆中的应用本发明涉及由平均0.001至1.0个烷基取代的羟烷基纤维素组的水溶性离子纤维素醚 每个脱水葡萄糖单元，其每个脱水葡萄糖单元含有0.01至0.1个磺基烷基，用于制备它们的方法以及使用平均为0.001至1.0个烷基取代的羟烷基纤维素的水溶性离子纤维素醚 每个脱水葡萄糖单元，并且在乳液漆中每个脱水葡萄糖单元含有0.01至0.4个磺基烷基。

公开(公告)号：US06667395B2

公开(公告)日：2003-12-23

申请号：US10241711

申请日：2002-09-11

申请人： Torsten Holtkötter ,  Stefan Michel ,  Gerd Sonnenberg

发明人： Torsten Holtkötter ,  Stefan Michel ,  Gerd Sonnenberg

IPC分类号： C08B1100

CPC分类号： C08B17/06 ,  C08B11/193

摘要： A description is given of a process for the industrial preparation of methylhydroxyalkylcelluloses (MHACs) by reaction of cellulose with alkali metal hydroxide and subsequent reaction with an alkyl halide and hydroxyalkylating agent, characterized in that the reaction is carried out batchwise in a reactor which has an L/D ratio of less than 2.5 and in which the unmixed regions are minimized and the batch reactor is preceded at the inlet by a continuously operated cellulose milling facility and is followed at the outlet by a continuously running plant for milling and drying the products, with the product being transported by action of gravity. An apparatus for carrying out this process and the methylhydroxyalkylcellulose obtainable by the process are also described.

摘要翻译： 给出了通过纤维素与碱金属氢氧化物的反应和随后与烷基卤化物和羟烷基化剂的反应来工业制备甲基羟基烷基纤维素（MHAC）的方法的描述，其特征在于反应在具有 L / D比小于2.5，其中未混合区域最小化，并且间歇反应器在入口之前通过连续操作的纤维素研磨设备，并且在出口处通过连续运行的设备进行研磨和干燥， 产品通过重力作用运输。还描述了用于进行该方法的设备和通过该方法可获得的甲基羟烷基纤维素。