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1. 发明授权

EP0590401B1 Process for the preparation of a fatty acid ester of cellulose 失效
标题翻译：一种用于生产纤维素的脂肪酸酯的方法
公开(公告)号：EP0590401B1
公开(公告)日：1999-12-15
申请号：EP93114692.2
申请日：1993-09-13
申请人： DAICEL CHEMICAL INDUSTRIES, LTD.
发明人： Saka, Shiro , Matsumura, Hiroyuki , Habu, Naoto , Kaino, Yoshiaki , Iwata, Ryouta , Asai, Tanemi , Shimamoto, Shu
IPC分类号： C08B3/00 , C08B3/06 , C08B3/22
CPC分类号： C08B3/06

2. 发明公开

EP0590401A3 Fatty acid ester of cellulose, cellulose diacetate and processes for the preparation thereof 失效
标题翻译：纤维素脂肪酸酯，纤维素二糖及其制备方法
公开(公告)号：EP0590401A3
公开(公告)日：1994-07-27
申请号：EP93114692.2
申请日：1993-09-13
申请人： DAICEL CHEMICAL INDUSTRIES, LTD.
发明人： Saka, Shiro , Matsumura, Hiroyuki , Habu, Naoto , Kaino, Yoshiaki , Iwata, Ryouta , Asai, Tanemi , Shimamoto, Shu
IPC分类号： C08B3/00 , C08B3/06 , C08B3/22
CPC分类号： C08B3/06
摘要： A fatty acid ester of cellulose excellent in transparency, filterability and spinnability in spite of its high content of mannose and xylose, wherein the total molar content of mannose and xylose accounts for at least 7% of that of glucose, mannose and xylose, and the amount of filtration satisfies a specified requirement. Such a fatty acid ester of cellulose is prepared by using a pulp having a low α-cellulose content as a raw material and a fatty acid corresponding to the ester as a diluent and adding an organic solvent in an amount of at least 10% by weight based on the diluent in any step during the preparation. In the preparation of cellulose diacetate, which is excellent in filterability and transparency, by the acetic acid process, the cellulose diacetate obtained by aging is dissolved in a solvent which can dissolve it and the resulting cellulose diacetate is recovered.
摘要翻译：尽管甘露糖和木糖含量高，透明度，过滤性和可纺性优异的纤维素脂肪酸酯，其中甘露糖和木糖的总摩尔含量占葡萄糖，甘露糖和木糖的总摩尔含量至少为7％过滤量满足规定要求。这种纤维素的脂肪酸酯是通过使用具有低α-纤维素含量的纸浆作为原料和对应于酯作为稀释剂的脂肪酸并加入至少10重量％的有机溶剂来制备的基于制备过程中任何步骤中的稀释剂。在过滤性和透明性优异的纤维素二乙酸酯的制备中，通过乙酸法，将通过老化得到的纤维素二乙酸酯溶解在可溶解的溶剂中，并回收得到的纤维素二乙酸酯。

3. 发明授权

EP0706766B1 A tobacco filter material and a method for producing the same 失效
标题翻译：烟草烟雾过滤材料和工艺及其制备
公开(公告)号：EP0706766B1
公开(公告)日：2002-08-14
申请号：EP95114961.6
申请日：1995-09-22
申请人： DAICEL CHEMICAL INDUSTRIES, LTD.
发明人： Asai, Tanemi , Shimamoto, Syu , Matsumura, Hiroyuki , Shibata, Tohru
IPC分类号： A24D3/10 , C08B3/20
CPC分类号： A24D3/10 , A24D3/065 , A24D3/068 , Y10T428/2933 , Y10T428/2938 , Y10T428/2965

4. 发明公开

EP0590401A2 Fatty acid ester of cellulose, cellulose diacetate and processes for the preparation thereof 失效
标题翻译： Fettsäureestervon Cellulose，Cellulosediacetat und Verfahren zur deren Herstellung。
公开(公告)号：EP0590401A2
公开(公告)日：1994-04-06
申请号：EP93114692.2
申请日：1993-09-13
申请人： DAICEL CHEMICAL INDUSTRIES, LTD.
发明人： Saka, Shiro , Matsumura, Hiroyuki , Habu, Naoto , Kaino, Yoshiaki , Iwata, Ryouta , Asai, Tanemi , Shimamoto, Shu
IPC分类号： C08B3/00 , C08B3/06 , C08B3/22
CPC分类号： C08B3/06
摘要： A fatty acid ester of cellulose excellent in transparency, filterability and spinnability in spite of its high content of mannose and xylose, wherein the total molar content of mannose and xylose accounts for at least 7% of that of glucose, mannose and xylose, and the amount of filtration satisfies a specified requirement. Such a fatty acid ester of cellulose is prepared by using a pulp having a low α-cellulose content as a raw material and a fatty acid corresponding to the ester as a diluent and adding an organic solvent in an amount of at least 10% by weight based on the diluent in any step during the preparation.
In the preparation of cellulose diacetate, which is excellent in filterability and transparency, by the acetic acid process, the cellulose diacetate obtained by aging is dissolved in a solvent which can dissolve it and the resulting cellulose diacetate is recovered.
摘要翻译：尽管甘露糖和木糖含量高，透明度，过滤性和可纺性优异的纤维素脂肪酸酯，其中甘露糖和木糖的总摩尔含量占葡萄糖，甘露糖和木糖的总摩尔含量至少为7％过滤量满足规定要求。这种纤维素的脂肪酸酯是通过使用具有低α-纤维素含量的纸浆作为原料和对应于酯作为稀释剂的脂肪酸并加入至少10重量％的有机溶剂来制备的基于制备过程中任何步骤中的稀释剂。在过滤性和透明性优异的纤维素二乙酸酯的制备中，通过乙酸法，将通过老化得到的纤维素二乙酸酯溶解在可溶解的溶剂中，并回收得到的纤维素二乙酸酯。

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