公开(公告)号：US06635754B1

公开(公告)日：2003-10-21

申请号：US09475432

申请日：1999-12-30

申请人： Jörg Oberkofler ,  Thomas Moser ,  Anton Schmalhofer ,  Jeffrey F. Spedding

发明人： Jörg Oberkofler ,  Thomas Moser ,  Anton Schmalhofer ,  Jeffrey F. Spedding

IPC分类号： C08B300

CPC分类号： D21H11/22 ,  C08L1/288 ,  D01F2/00 ,  D01F2/06 ,  D01F2/10 ,  Y10T428/2982

摘要： Cellulose particles are described that have cationic groups in their interior. In one aspect, at least 10%, and preferably 50% or more, of the cationic groups are present within the particle interior. Also disclosed are particular combinations of such cellulose particles with certain water-soluble polymers that are well suited for use in the papermaking industry.

摘要翻译： 描述了在其内部具有阳离子基团的纤维素颗粒。 一方面，至少10％，优选50％或更多的阳离子基团存在于颗粒内部。 还公开了这种纤维素颗粒与某些适合用于造纸工业的水溶性聚合物的特定组合。

公开(公告)号：US06590095B1

公开(公告)日：2003-07-08

申请号：US09204609

申请日：1998-12-02

申请人： Harry Schleicher ,  Bodo Borrmeister ,  Hermann Lang

发明人： Harry Schleicher ,  Bodo Borrmeister ,  Hermann Lang

IPC分类号： C08B300

CPC分类号： D01F2/24 ,  C08B15/06

摘要： The present invention concerns a method of preparing a cellulose carbamate solution by dissolving cellulose carbamate in sodium hydroxide solution at temperatures of 1.

摘要翻译： 本发明涉及通过在<10℃的温度下将氨基甲酸纤维素溶解在氢氧化钠溶液中制备纤维素氨基甲酸酯溶液的方法，其中将8％至15％的氢氧化钠浓度为7％至12％的氨基甲酸纤维素溶液， 在第一步骤中制备，然后通过在第二步骤中用稀氢氧化钠溶液和/或水稀释将溶液调节至氢氧化钠浓度<9％，条件是纤维素氨基甲酸酯与钠的重量比 氢氧化物在两个步骤中都是> 1。

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

公开(公告)号：US06407224B1

公开(公告)日：2002-06-18

申请号：US09356177

申请日：1999-07-16

申请人： Dmitry Petrovich Mironov ,  Anatoly Ivanovich Shamolin ,  Eduard Pavlovich Grishin ,  Valentin Ananievich Bondar

发明人： Dmitry Petrovich Mironov ,  Anatoly Ivanovich Shamolin ,  Eduard Pavlovich Grishin ,  Valentin Ananievich Bondar

IPC分类号： C08B300

CPC分类号： B01J31/0247 ,  B01J27/053 ,  B01J2231/40 ,  C08B3/02 ,  C08B3/06

摘要： A catalytic system for cellulose acylation includes an adduct of sulfuric acid with N,N-dimethylacetamide, free sulfuric acid or free N,N-dimethylacetamide with the following mole ratio of the components: adduct:1.0; free sulfuric acid, max:0.49; or free N,N-dimethylacetamide, max:0.4. A process for producing such a catalytic system is based upon reacting sulfuric acid with N,N-dimethylacetamide in an anhydrous medium at a temperature of 0° C.-25° C. with the following mole weight ratio of the components: sulfuric acid:1.0; N,N-dimethylacetamide, max:1.4. A process for cellulose acylation in the presence of this catalytic system incorporates cellulose treatment with acetic acid followed by treatment of the resultant activated cellulose with a lower fatty acid anhydride at a temperature of 10° C.-90° C. in the presence of this catalytic system taken in an amount of 1.5-30.0 wt. % of the cellulose weight in terms of sulfuric acid, a weight ratio of the liquid phase and cellulose being 3-7:1, respectively.

摘要翻译： 用于纤维素酰化的催化体系包括硫酸与N，N-二甲基乙酰胺，游离硫酸或游离的N，N-二甲基乙酰胺的加合物，其组分摩尔比如下：加合物：1.0; 游离硫酸，最大值：0.49; 或游离的N，N-二甲基乙酰胺，最大值为0.4。 制备这种催化体系的方法是基于硫酸与N，N-二甲基乙酰胺在0℃-25℃的温度下在无水介质中反应，其摩尔比例如下：硫酸： 1.0; N，N-二甲基乙酰胺，最大值：1.4。 在该催化体系存在下进行纤维素酰化的方法包括用醋酸处理纤维素，然后在10℃-90℃的温度下用低级脂肪酸酐处理所得的活化纤维素 催化体系的用量为1.5-30.0wt。 以硫酸计，纤维素重量的百分比，液相和纤维素的重量比分别为3-7:1。

公开(公告)号：US06229007B1

公开(公告)日：2001-05-08

申请号：US09410911

申请日：1999-09-30

申请人： Anthony J. Tye ,  Gerald L. Bajc

发明人： Anthony J. Tye ,  Gerald L. Bajc

IPC分类号： C08B300

CPC分类号： C08B3/22

摘要： Disclosed are amine functional cellulose ester resins and methods of making the same. The amine functional cellulose ester resins comprise at least one repeat unit of the structure: wherein R1, R2, and R3 are selected independently from the group consisting of hydrogen, R4C═O, and wherein at least one of R1, R2, and R3 is hydrogen, at least one of R1, R2, and R3 is R4C═O, and at least one of R1, R2, or R3 have the structure R4 is selected from the group consisting of C1-C20 alkyl groups, C1-C20 phenyl groups, C1-C20 napthyl groups, and C1-C20 alkenyl groups, L is a divalent linking group and R6 is selected from the group consisting of H and compounds having at least one secondary amine group, tertiary amine group, and mixtures thereof.

摘要翻译： 公开了胺官能纤维素酯树脂及其制备方法。 胺官能纤维素酯树脂包含至少一个结构重复单元：其中R1，R2和R3独立地选自氢，R4C = O，其中R1，R2和R3中的至少一个是氢 ，R 1，R 2和R 3中的至少一个为R 4 C = O，R 1，R 2或R 3中的至少一个具有结构R 4选自C 1 -C 20烷基，C 1 -C 20苯基，C 1 -C 20萘基和C 1 -C 20链烯基，L是二价连接基团，R 6选自H和具有至少一个仲胺基团的化合物，叔胺基团及其混合物。

公开(公告)号：US06627750B2

公开(公告)日：2003-09-30

申请号：US09922124

申请日：2001-08-03

申请人： Linfu Wang

发明人： Linfu Wang

IPC分类号： C08B300

CPC分类号： D21H11/20 ,  A61L24/0042 ,  A61L24/043 ,  C08B3/10 ,  C08B3/20 ,  D06M13/1845 ,  D06M13/192 ,  D06M13/203 ,  D21C9/005 ,  Y10T428/2913 ,  C08L71/02

摘要： Disclosed is a process for producing water-insoluble cellulose fibers having high carboxyl content by reacting cellulose fiber in suspension with dicarboxylic acid anhydride or chloride in the presence of a basic catalyst. The fibers produced possess a unique combination of high carboxyl content in the range of 100 to 4000 meq/kg, and high average viscosity, in the range of 0.5 to 12 dl/g. The carboxylated cellulose fibers according the invention can be made with a combination of carboxyl content and average viscosity which are suitable for use in numerous applications, including absorbent products, health care products, specialty papers, adhesives, detergents, biodegradable fibers, precursors for aqueous coatings and ion exchange fibers.

摘要翻译： 本发明公开了一种通过在碱性催化剂的存在下将纤维素纤维悬浮液与二羧酸酐或氯化物反应而生产具有高羧基含量的水不溶性纤维素纤维的方法。 所生产的纤维具有在100至4000meq / kg范围内的高羧基含量和0.5-12dl / g范围内的高平均粘度的独特组合。 本发明的羧化纤维素纤维可以通过羧基含量和平均粘度的组合制成，适用于许多用途，包括吸收产品，保健产品，特种纸，粘合剂，洗涤剂，可生物降解纤维，水性涂料前体 和离子交换纤维。

公开(公告)号：US06369214B1

公开(公告)日：2002-04-09

申请号：US09410912

申请日：1999-09-30

申请人： Anthony J. Tye ,  Gerald L. Bajc

发明人： Anthony J. Tye ,  Gerald L. Bajc

IPC分类号： C08B300

CPC分类号： C09D101/14 ,  B01F17/005 ,  C08B3/22 ,  C08K3/04 ,  C08K3/22 ,  C08K5/3462 ,  C08K5/357 ,  C09D7/61 ,  C09D7/63 ,  C09D17/004

摘要： Disclosed are a method of dispersing a pigment, a pigment dispersion, a coating composition comprising said pigment dispersion, an method of making a coating composition, and a method of improving the appearance of a coating composition. The pigment dispersion of the invention requires at least one pigment subjected to an action to decrease the average particle size of the pigment in the presence of an amine functional cellulose ester resin. The amine functional cellulose ester resins comprise at least one repeat unit of the structure: wherein R1, R2, and R3 are selected independently from the group consisting of hydrogen, R4C═O, and wherein at least one of R1, R2, and R3 is hydrogen, at least one of R1, R2, and R3 is R4C═O, and at least one of R1, R2, or R3 have the structure R4 is selected from the group consisting of C1-C20 alkyl groups, C1-C20 phenyl groups, C1-C20 napthyl groups, and C1-C20 alkenyl groups, L is a divalent linking group and R6 is selected from the group consisting of H and compounds having at least one secondary amine group, tertiary amine group, and mixtures thereof.

摘要翻译： 公开了一种分散颜料，颜料分散体，包含所述颜料分散体的涂料组合物，制备涂料组合物的方法和改进涂料组合物外观的方法的方法。 本发明的颜料分散体需要至少一种在胺官能纤维素酯树脂的存在下进行作用以降低颜料的平均粒度的颜料。 胺官能纤维素酯树脂包含至少一个结构重复单元：其中R1，R2和R3独立地选自氢，R4C = O，其中R1，R2和R3中的至少一个是氢 ，R 1，R 2和R 3中的至少一个为R 4 C = O，R 1，R 2或R 3中的至少一个具有结构R 4选自C 1 -C 20烷基，C 1 -C 20苯基，C 1 -C 20萘基和C 1 -C 20链烯基，L是二价连接基团，R 6选自H和具有至少一个仲胺基团的化合物，叔胺基团及其混合物。

公开(公告)号：US06211358B1

公开(公告)日：2001-04-03

申请号：US09298744

申请日：1999-04-23

申请人： Makoto Honda ,  Takatoshi Yajima

发明人： Makoto Honda ,  Takatoshi Yajima

IPC分类号： C08B300

CPC分类号： C08J3/11 ,  C08J5/18 ,  C08J2301/10 ,  C08L1/10

摘要： A method for preparing a solution of cellulose acylate is disclosed. The method comprises comprising the steps of (1) chilling an organic solvent containing no chlorinated organic solvent at a temperature of from −100° C. to −10° C., (2) mixing cellulose acylate containing an alkali-earth metal compound in an amount of from 10 ppm to 100 ppm with said chilled organic solvent to form a mixture, (3) swelling the cellulose acylate in the mixture, and (4) dissolving the mixture containing the swollen cellulose acylate by heating.

摘要翻译： 公开了一种制备纤维素酰化物溶液的方法。 该方法包括以下步骤：（1）在-100℃至-10℃的温度下冷却不含氯化有机溶剂的有机溶剂，（2）将含有碱土金属化合物的纤维素酰化物混合在 与所述冷冻的有机溶剂一起从10ppm至100ppm的量形成混合物，（3）使混合物中的纤维素酰化物膨胀，和（4）通过加热溶解含有溶胀的纤维素酰化物的混合物。