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公开(公告)号:US06320043B1
公开(公告)日:2001-11-20
申请号:US09341412
申请日:1999-07-08
申请人: Gunter Weber , Detmar Redeker , Bernd Klinksiek , Jürgen Hinderer , Benno Ulfik
发明人: Gunter Weber , Detmar Redeker , Bernd Klinksiek , Jürgen Hinderer , Benno Ulfik
IPC分类号: C08B1100
CPC分类号: C08B11/20
摘要: The invention relates to a new, particularly economic process for preparing pulverulent polysaccharide derivatives, in particular cellulose derivatives, having a thermal flocculation point; the process comprises soaking or dissolving the polysaccharide derivative in a solvent or mixed solvent, dividing/comminuting the soaked or dissolved polysaccharide derivative by thermal and/or mechanical liquid separation and an optional drying step.
摘要翻译: 本发明涉及一种制备具有热絮凝点的粉状多糖衍生物,特别是纤维素衍生物的新的,特别经济的方法; 该方法包括将多糖衍生物浸泡或溶解在溶剂或混合溶剂中,通过热和/或机械液体分离和任选的干燥步骤分离/粉碎浸泡或溶解的多糖衍生物。
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公开(公告)号:US06872820B2
公开(公告)日:2005-03-29
申请号:US09968497
申请日:2001-10-01
申请人: Gunter Weber , Detmar Redeker , Bernd Klinksiek , Jürgen Hinderer , Benno Ulfik
发明人: Gunter Weber , Detmar Redeker , Bernd Klinksiek , Jürgen Hinderer , Benno Ulfik
CPC分类号: B65D75/5855 , B32B27/32 , B32B2553/00
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。
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