公开(公告)号：US08394647B2

公开(公告)日：2013-03-12

申请号：US13029786

申请日：2011-02-17

申请人： Bhalchandra Lele ,  Pratap Singh ,  Asoke Chatterjee

发明人： Bhalchandra Lele ,  Pratap Singh ,  Asoke Chatterjee

IPC分类号： G01N33/544

CPC分类号： C08B37/0021 ,  C08B37/00 ,  C08L5/06 ,  C08L25/06

摘要： Methods and reagents are disclosed for reducing an amount of non-covalently bound polysaccharide on a support. The method comprises contacting a support comprising both covalently bound polysaccharide and non-covalently bound polysaccharide with an aqueous solution comprising an amount of a chaotropic agent effective to remove non-covalently bound polysaccharide from the support.

摘要翻译： 公开了减少载体上非共价结合多糖的量的方法和试剂。 该方法包括将包含共价结合的多糖和非共价结合的多糖的载体与包含一定量的有效从载体中除去非共价结合的多糖的离液剂的水溶液接触。

公开(公告)号：US20120214978A1

公开(公告)日：2012-08-23

申请号：US13029786

申请日：2011-02-17

申请人： Bhalchandra Lele ,  Pratap Singh ,  Asoke Chatterjee

发明人： Bhalchandra Lele ,  Pratap Singh ,  Asoke Chatterjee

IPC分类号： C08B37/02

CPC分类号： C08B37/0021 ,  C08B37/00 ,  C08L5/06 ,  C08L25/06

摘要： Methods and reagents are disclosed for reducing an amount of non-covalently bound polysaccharide on a support. The method comprises contacting a support comprising both covalently bound polysaccharide and non-covalently bound polysaccharide with an aqueous solution comprising an amount of a chaotropic agent effective to remove non-covalently bound polysaccharide from the support.

摘要翻译： 公开了减少载体上非共价结合多糖的量的方法和试剂。 该方法包括将包含共价结合的多糖和非共价结合的多糖的载体与包含一定量的有效从载体中除去非共价结合的多糖的离液剂的水溶液接触。

公开(公告)号：US4252924A

公开(公告)日：1981-02-24

申请号：US27454

申请日：1979-04-05

申请人： Asoke Chatterjee

发明人： Asoke Chatterjee

IPC分类号： C08F2/00 ,  C08F2/02 ,  C08F8/00 ,  C08F8/44 ,  C08F210/00 ,  C08F210/02 ,  C08F265/02 ,  C08F267/02

CPC分类号： C08F8/44 ,  C08F210/02

摘要： There is provided a continuous, steady state process for the preparation of nonrandom ethylene/.alpha.,.beta.-ethylenically unsaturated carboxylic acid copolymers in at least 2 constant environment, stirred autoclaves in series wherein the first autoclave is maintained at the pressure in the range of 800 to 3000 atmospheres (11.8 to 44.1 kpsi) and at a temperature in the range of 120.degree. to 200.degree. C. in a single phase reaction mixture at the given concentration of copolymer in the reaction mixture and at the given acid comonomer content of the copolymer and wherein each succeeding autoclave is maintained at a temperature of at least 30.degree. C. in excess of the preceding autoclave. The compolymers thus obtained have a ratio of percent adjacent acid to weight percent acid in the copolymer of from above 0.44 to about 1.0. These copolymers have improved stiffness and are particularly useful in sheeting, blow molding, and packaging applications and for conversion to ionomers which are also useful for similar applications.

摘要翻译： 提供了一种用于在至少2个恒定环境中制备非随机乙烯/α，β-烯键式不饱和羧酸共聚物的连续的稳态方法，其中串联的搅拌式高压釜，其中第一高压釜保持在800 在单一相反应混合物中，在反应混合物中的给定浓度的共聚物和在共聚物的给定的酸共聚单体含量下，在3000〜大气压（11.8〜44.1kpsi）和120〜200℃的温度范围内 并且其中每个随后的高压釜保持在超过先前的高压釜的至少30℃的温度。 由此获得的共聚物具有在0.44至约1.0之间的共聚物中酸与重量百分比相邻的酸的百分比。 这些共聚物具有改善的刚度，并且在片材，吹塑和包装应用中以及用于转化成离聚物的特别有用，这对于类似的应用也是有用的。