Finely divided polysaccharide derivatives
    7.
    发明授权
    Finely divided polysaccharide derivatives 有权
    细分多糖衍生物

    公开(公告)号:US06872820B2

    公开(公告)日:2005-03-29

    申请号:US09968497

    申请日:2001-10-01

    摘要: Finely divided polysacharide derivatives are described. The finely divided polysacharide derivatives are prepared by a process comprising: a) forming an aqueous composition comprising a polysaccharide derivative and water, in which the polysaccharide derivative is soaked or dissolved; b) converting the polysaccharide derivative of the aqueous composition into finely divided solid particles by, (i) contacting the aqueous composition with superheated water vapor in a dryer-pulverizer; or (ii) causing the polysaccharide derivative of the aqueous composition to flocculate; and c) optionally drying the finely divided solid particles of step b). The primary structures of the polysaccharide starting material are largely removed, and the product has a shape factor of less than 5 and greater than or equal to 1.

    摘要翻译: 描述了细分多糖的衍生物。 精细分散的多糖苷衍生物通过以下方法制备,该方法包括:a)形成包含多糖衍生物和水的水性组合物,其中多糖衍生物被浸泡或溶解; b)通过以下步骤将水性组合物的多糖衍生物转化成细分散的固体颗粒:(i)在干燥器 - 粉碎机中使含水组合物与过热水蒸汽接触; 或(ⅱ)引起含水组合物的多糖衍生物絮凝; 和c)任选地干燥步骤b)的细碎固体颗粒。 多糖原料的主要结构大部分被除去,产物的形状因子小于5且大于或等于1。