公开(公告)号：US20160040360A1

公开(公告)日：2016-02-11

申请号：US14816466

申请日：2015-08-03

Applicant: Celanese Acetate LLC

Inventor： Bin Li ,  Leslie Allen ,  Dinesh Arora ,  Prabuddha Bansal ,  Monica Boatwright ,  Christopher M. Bundren ,  Michael T. Combs ,  Denis G. Fallon ,  Rongfu Li ,  Jay Mehta ,  Tianshu Pan

IPC: D21H17/14 ,  D21H11/00 ,  D21H17/07

CPC classification number: D21H17/14 ,  C08B37/0057 ,  C08H8/00 ,  D21H11/00 ,  D21H17/07

Abstract: A process for treating a cellulosic material comprising pretreating the cellulosic material and then extracting the cellulosic material with an extractant to selectively extract hemicellulose therefrom and separating the extracted hemicellulose to form a cellulosic product comprising less hemicellulose than the cellulosic material. The extractant comprises a cellulose solvent and a co-solvent. The cellulosic product advantageously retains its cellulosic fiber morphology. The processes involve separating and recovering the hemicellulose and separating and recycling various process streams employed in the process.

Abstract translation: 一种用于处理纤维素材料的方法，包括预处理纤维素材料，然后用提取剂萃取纤维素材料以从其中选择性提取半纤维素，并分离提取的半纤维素以形成包含比纤维素材料少的半纤维素的纤维素产品。 萃取剂包括纤维素溶剂和共溶剂。 纤维素产品有利地保留其纤维素纤维形态。 该方法包括分离和回收半纤维素，并分离和回收在该方法中使用的各种工艺流。

公开(公告)号：US20150233055A1

公开(公告)日：2015-08-20

申请号：US14527902

申请日：2014-10-30

Applicant: Celanese Acetate LLC

Inventor： Denis G. Fallon ,  Leslie Allen ,  Dinesh Arora ,  Monica Boatwright ,  Christopher M. Bundren ,  Michael T. Combs ,  Bin Li ,  Rongfu Li ,  Jay Mehta ,  Tianshu Pan

IPC: D21H11/00

CPC classification number: D21H11/00

Abstract: Dissolving-grade pulp compositions are prepared by treating a cellulosic material with an extractant comprising a cellulose solvent and co-solvent. The dissolving-grade pulp compositions comprise at least 90 wt. % glucan, from 0.6 to 5 wt. % xylan, and have distinct molecular weights, and elemental metal ions from known and commercially available dissolving-grade pulp compositions.

Abstract translation: 通过用包含纤维素溶剂和共溶剂的萃取剂处理纤维素材料来制备溶解级纸浆组合物。 溶解级纸浆组合物包含至少90wt。 ％葡聚糖，0.6至5wt。 ％木聚糖，并且具有不同的分子量，以及来自已知和市售的溶解级纸浆组合物的元素金属离子。

公开(公告)号：US20150232582A1

公开(公告)日：2015-08-20

申请号：US14527954

申请日：2014-10-30

Applicant: Celanese Acetate LLC

Inventor： Denis G. Fallon ,  Leslie Allen ,  Dinesh Arora ,  Monica Boatwright ,  Christopher M. Bundren ,  Michael T. Combs ,  Bin Li ,  Rongfu Li ,  Jay Mehta ,  Tianshu Pan

IPC: C08B37/00

CPC classification number: C08B37/0057 ,  C08B37/0003 ,  C08H8/00 ,  C08L5/14

Abstract: Hemicellulose compositions are prepared by treating a cellulosic material with an extractant comprising a cellulose solvent and co-solvent. The hemicellulose compositions preferably comprise from 55 to 99 wt. % xylan and have distinct molecular weights, elemental metal ions, and intrinsic viscosities when compared to known hemicellulose compositions.

Abstract translation: 通过用包含纤维素溶剂和共溶剂的萃取剂处理纤维素材料来制备半纤维素组合物。 半纤维素组合物优选包含55至99wt。 ％木聚糖，并且与已知的半纤维素组合物相比具有不同的分子量，元素金属离子和特性粘度。

公开(公告)号：US20150037377A1

公开(公告)日：2015-02-05

申请号：US14516029

申请日：2014-10-16

Applicant: Celanese Acetate LLC

Inventor： Michael T. Combs ,  Thomas S. Garrett

IPC: A61K47/38 ,  A61K31/485 ,  A61K31/5415 ,  A61K31/4741 ,  A61K33/02 ,  A61K31/137 ,  A61K31/216

CPC classification number: A61L31/10 ,  A61K9/5042 ,  A61K31/137 ,  A61K31/216 ,  A61K31/4741 ,  A61K31/485 ,  A61K31/5415 ,  A61K33/02 ,  A61K47/38 ,  A61L2400/16 ,  C08B3/06 ,  C08B7/00 ,  C08L1/20 ,  C09D101/20 ,  C09J101/20 ,  C09K8/035 ,  G01N5/02 ,  G01N19/04 ,  G01N2203/0025 ,  Y02A50/411 ,  C08L1/12

Abstract: The present invention relates to substituted cellulose acetates and methods of use thereof. One embodiment of the present invention provides a coating having a substituted cellulose acetate having a polar substituent that has an oxygen atom covalently bonded to a nonmetal selected from the group of sulfur, phosphorus, and boron; wherein the nonmetal is present in at least about 0.01% by weight of the substituted cellulose acetate.

Abstract translation: 本发明涉及取代的乙酸纤维素及其使用方法。 本发明的一个实施方案提供一种具有取代的乙酸纤维素的涂层，其具有极性取代基，其具有与选自硫，磷和硼的非金属共价键合的氧原子; 其中所述非金属以至少约0.01重量％的所述取代的乙酸纤维素存在。

公开(公告)号：US20140315720A1

公开(公告)日：2014-10-23

申请号：US14244998

申请日：2014-04-04

Applicant: Celanese Acetate LLC

Inventor： Denis G. Fallon ,  Thomas S. Garrett ,  Lawton E. Kizer ,  Karen L. Zazzara ,  Michael T. Combs ,  Richard K. Johnson ,  Gary Dehart

IPC: A01N25/34 ,  A24D3/14 ,  A23L1/03 ,  A61K8/02

CPC classification number: A01N25/34 ,  A01N25/28 ,  A23L27/72 ,  A23L29/035 ,  A23P10/30 ,  A24D3/061 ,  A24D3/062 ,  A24D3/10 ,  A24D3/14 ,  A61K8/0241 ,  A61K8/731 ,  A61K8/732 ,  A61K2800/10 ,  A61K2800/412 ,  A61Q19/00 ,  C05G1/00 ,  C08B1/003 ,  C08B3/00 ,  C08B31/02 ,  C08B37/00 ,  C08B37/003 ,  C08B37/0057 ,  C08L1/12 ,  C08L3/06 ,  Y10T428/2982

Abstract: A method for producing a polysaccharide ester microsphere may include forming a polysaccharide ester product from a polysaccharide synthesis, wherein the polysaccharide ester product comprises a polysaccharide ester and a solvent; diluting the polysaccharide ester product, thereby yielding a polysaccharide ester dope; and forming a plurality of polysaccharide ester microspheres from the polysaccharide ester dope. Suitable polysaccharides may include, but are not limited to, starch, cellulose, hemicellulose, algenates, chitosan, and any combination thereof. Esters thereof may be organic esters (e.g., acetate and the like), inorganic esters (e.g., sulfonates and the like), or combinations thereof. Further, the solids conent of the polysaccharide ester dope, in some instances, may be greater than about 16 wt %.

公开(公告)号：US20140113826A1

公开(公告)日：2014-04-24

申请号：US14060782

申请日：2013-10-23

Applicant: Celanese Acetate LLC

Inventor： Denis G. Fallon ,  Thomas S. Garrett ,  Lawton E. Kizer ,  Karen L. Zazzara ,  Michael T. Combs ,  Richard K. Johnson ,  Gary Dehart

IPC: A23L1/22 ,  A01N25/34 ,  A24D3/14 ,  A61K8/02

CPC classification number: A01N25/34 ,  A01N25/28 ,  A23L27/72 ,  A23L29/035 ,  A23P10/30 ,  A24D3/061 ,  A24D3/062 ,  A24D3/10 ,  A24D3/14 ,  A61K8/0241 ,  A61K8/731 ,  A61K8/732 ,  A61K2800/10 ,  A61K2800/412 ,  A61Q19/00 ,  C05G1/00 ,  C08B1/003 ,  C08B3/00 ,  C08B31/02 ,  C08B37/00 ,  C08B37/003 ,  C08B37/0057 ,  C08L1/12 ,  C08L3/06 ,  Y10T428/2982

Abstract: A method for producing a polysaccharide ester microsphere may include forming a polysaccharide ester product from a polysaccharide synthesis, wherein the polysaccharide ester product comprises a polysaccharide ester and a solvent; diluting the polysaccharide ester product, thereby yielding a polysaccharide ester dope; and forming a plurality of polysaccharide ester microspheres from the polysaccharide ester dope. Suitable polysaccharides may include, but are not limited to, starch, cellulose, hemicellulose, algenates, chitosan, and any combination thereof. Esters thereof may be organic esters (e.g., acetate and the like), inorganic esters (e.g., sulfonates and the like), or combinations thereof. Further, the solids conent of the polysaccharide ester dope, in some instances, may be greater than about 16 wt %.

Abstract translation: 多糖酯微球的制造方法可以包括由多糖合成形成多糖酯产物，其中所述多糖酯产物包含多糖酯和溶剂; 稀释多糖酯产物，从而产生多糖酯类; 并从多糖酯原液形成多个多糖酯微球。 合适的多糖可包括但不限于淀粉，纤维素，半纤维素，藻酸盐，壳聚糖及其任何组合。 其酯可以是有机酯（例如乙酸酯等），无机酯（例如磺酸盐等）或其组合。 此外，在一些情况下，多糖酯类的固体浓度可以大于约16重量％。