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    CROSS-METATHESIZED POLYSACCHARIDE DERIVATIVES AND PROCESSES FOR PREPARING THEM
    74.
    发明申请
    CROSS-METATHESIZED POLYSACCHARIDE DERIVATIVES AND PROCESSES FOR PREPARING THEM 审中-公开
    交联金属多糖衍生物及其制备方法

    公开(公告)号：US20160215068A1

    公开(公告)日：2016-07-28

    申请号：US15025451

    申请日：2014-09-26

    申请人： Kevin J. EDGAR ,  Xiangtao MENG ,  John MATSON

    发明人： Kevin J. Edgar ,  Xiangtao Meng ,  John Matson

    IPC分类号： C08B3/16 ,  C08B3/14 ,  A61K47/38

    CPC分类号： C08B3/16 ,  A61K47/38 ,  C08B3/00 ,  C08B3/14 ,  C08B37/0018 ,  C08B37/0021

    摘要： Methods for the cross-metathesis of polysaccharides with one or more olefin-terminated side chains and cross-metathesized products are described. In an exemplary embodiment, a method for the synthesis of cellulose co-carboxyesters via olefin cross-metathesis is described. Conditions of the reactions were relatively mild and the olefin-substituted polysaccharides and the appropriate monomeric olefin partners appear to follow Grubbs rules as summarized herein. The compounds and methods may be useful for structure-property studies, particularly those aimed at developing polymers for drug delivery, such as for controlled-release drug delivery systems, controlled-release coatings, increasing bioavailability of drugs, and maintaining drug supersaturation in the GI tract.

    摘要翻译： 描述了多糖与一种或多种烯烃封端的侧链和交叉复合产物的交叉复分解方法。 在一个示例性实施方案中，描述了通过烯烃交叉复分解合成纤维素共 - 羧酸酯的方法。 反应条件相对温和，烯烃取代的多糖和适当的单体烯烃合成物似乎遵循本文总结的Grubbs规则。 化合物和方法可用于结构性质研究，特别是那些旨在开发用于药物递送的聚合物的那些，例如用于控制释放药物递送系统，控释包衣，药物的增加的生物利用度和维持GI中的药物过饱和度 道。

    Cellulose ester compositions having low birefringence and films made therefrom
    78.
    发明授权
    Cellulose ester compositions having low birefringence and films made therefrom 有权
    具有低双折射率的纤维素酯组合物和由其制成的薄膜

    公开(公告)号：US08329893B2

    公开(公告)日：2012-12-11

    申请号：US12196333

    申请日：2008-08-22

    申请人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    发明人： Marcus David Shelby ,  Michael Eugene Donelson ,  Bradley Howard Dayvolt ,  Alan Kent Wilson ,  Bryan Kirkman

    IPC分类号： A61K6/00 ,  A61K9/28 ,  C08B3/16

    CPC分类号： G02B5/3033 ,  C08B3/06 ,  C08B3/08 ,  C08B3/16 ,  C08J5/18 ,  C08J2301/14 ,  C08K5/0016 ,  C08L1/14

    摘要： The present invention relates to cellulose esters having low hydroxyl content for use in optical applications, such as liquid crystal display (LCD) films. Films made with low hydroxyl levels and a given ratio of non-acetyl ester to hydroxyl level have been found to have low intrinsic birefringence. Therefore, these films can be cast, molded, or otherwise oriented without an appreciable birefringence or optical distortion (i.e. retardation). Such features make these films useful in polarizer, protective, and compensator films as well as molded optical parts, such as lenses. Furthermore, it has also been found that resins of the present invention can also be made to have “+C plate” behavior either by melt or solvent based processing, a characteristic which is not typical of cellulose esters. Such +C behavior allows films to be produced having unique compensatory behavior. Other embodiments of the invention relate to methods melt casting films while minimizing birefringence formation.

    摘要翻译： 本发明涉及用于光学应用的低羟基含量的纤维素酯，例如液晶显示（LCD）膜。 已经发现具有低羟基水平和给定比例的非乙酰酯与羟基水平的膜具有低固有双折射。 因此，这些膜可以铸造，模制或以其它方式取向，而没有明显的双折射或光学变形（即延迟）。 这些特征使得这些膜可用于偏振器，保护膜和补偿膜以及模制的光学部件，例如透镜。 此外，还发现本发明的树脂也可以通过基于熔体或溶剂的加工而具有+ C板的性能，这是不是典型的纤维素酯的特征。 这种+ C行为允许制作具有独特补偿行为的胶片。 本发明的其它实施方案涉及熔融流延膜的方法，同时最小化双折射形成。

    Cellulose esters and their production in halogenated ionic liquids
    80.
    发明授权
    Cellulose esters and their production in halogenated ionic liquids 有权
    纤维素酯及其在卤代离子液体中的生产

    公开(公告)号：US08273872B2

    公开(公告)日：2012-09-25

    申请号：US13217326

    申请日：2011-08-25

    申请人： Charles Michael Buchanan ,  Norma Lindsey Buchanan

    发明人： Charles Michael Buchanan ,  Norma Lindsey Buchanan

    IPC分类号： C08B3/16 ,  C08B3/02 ,  C08B3/04 ,  C08B3/06 ,  C08B3/08 ,  C08B3/10

    CPC分类号： C08B1/003 ,  C08B3/00 ,  C08B3/06 ,  C08B3/16 ,  C08B3/18

    摘要： Ionic liquids and cellulose ester compositions and processes for producing ionic liquids and cellulose esters. Cellulose esters can be produced by esterifying cellulose in a reaction medium comprising one or more halide ionic liquids and at least one binary component. Cellulose esters prepared via the methods of the present invention can have a degree of substitution (“DS”) of at least 1.5 and can comprise a plurality of ester substituents, where at least 50 percent of the ester substituents comprise alkyl esters having a carbon chain length of at least 6 carbons.

    摘要翻译： 离子液体和纤维素酯组合物和用于生产离子液体和纤维素酯的方法。 纤维素酯可以通过在包含一种或多种卤离子液体和至少一种二元组分的反应介质中酯化纤维素来制备。 通过本发明的方法制备的纤维素酯可以具有至少1.5的取代度（“DS”），并且可以包含多个酯取代基，其中至少50％的酯取代基包括具有碳链的烷基酯 长度至少为6个碳。