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1. 发明授权

US5725601A Process for producing water-absorbent cross-linked, carboxyalkylated cellulose-containing material 失效
标题翻译：生产吸水性交联羧甲烷基化纤维素的材料的方法
公开(公告)号：US5725601A
公开(公告)日：1998-03-10
申请号：US691098
申请日：1996-08-01
申请人： Kozo Tajiri , Masayo Maeda , Haruo Tsukamoto
发明人： Kozo Tajiri , Masayo Maeda , Haruo Tsukamoto
IPC分类号： A61L15/28 , C08B15/00 , D04H1/64 , A61L15/00
CPC分类号： C08B15/005 , A61L15/28 , D04H1/587 , D04H1/64
摘要： A water absorbent cross-linked, carboxyalkylated cellulose-containing material is produced by impregnating a cellulose-containing material with an aqueous reaction solution including a carboxyalkylating agent, an alkali metal hydroxide, and a cross-linking agent dissolved in water in an initial content of 50 to 90% by weight, the molar ratio of the carboxylating agent to glucose groups of cellulose being 0.7 to 2.0; adjusting the water content of the aqueous reaction solution impregnated in the cellulose-containing material to 20 to 60% by weight and of at least 5% by weight below the initial water content by evaporating a portion of water; and subjecting the water content-adjusted cellulose-containing material to a simultaneous cross-linking and carboxylating reaction procedure at 50.degree. to 110.degree. C., while maintaining the water content at 20 to 60% and of at least 5% by weight below the initial water content.
摘要翻译：含水吸收剂交联的含羧烷基化纤维素的材料是通过用包含羧基烷化剂，碱金属氢氧化物和溶解在水中的交联剂的含水反应溶液浸渍含纤维素材料来制备的，其初始含量为 50〜90重量％，羧化剂与纤维素的葡萄糖基摩尔比为0.7〜2.0; 通过蒸发一部分水，将浸渍在含纤维素的材料中的水性反应溶液的水含量调节至低于初始含水量的20至60重量％和至少5重量％并将含水量调节的含纤维素材料在50℃至110℃下进行同时的交联和羧化反应过程，同时保持水含量为20至60％且至少5重量％低于初始含水量。

2. 发明授权

US4183146A Process for simultaneously drying mechanical wood pulp and improving mechanical strength and brightness of the pulp 失效
标题翻译：同时干燥机械木浆并提高纸浆的机械强度和亮度的方法
公开(公告)号：US4183146A
公开(公告)日：1980-01-15
申请号：US883208
申请日：1978-03-03
申请人： Haruo Tsukamoto , Kazuo Koide , Yuzo Okazaki , Isao Yamada
发明人： Haruo Tsukamoto , Kazuo Koide , Yuzo Okazaki , Isao Yamada
IPC分类号： D21B1/00 , D21C9/00 , F26B7/00
CPC分类号： D21C9/004
摘要： Disclosed is a process for simultaneously drying mechanical wood pulp and improving the mechanical strength and brightness of the wood pulp by mixing mechanical wood pulp with an aqueous solution of at least one sulfonating compound, the resultant mixture having a dry solid consistency of 20 to 50% of the wood pulp, based on the weight of said mixture and; bringing the mixture into contact with a heating gas having a temperature higher than 100.degree. C. to cause the dry solid consistency of the wood pulp in the mixture to be increased to a range of from 65 to 90% by weight.
摘要翻译：公开了一种同时干燥机械木浆并通过将机械木浆与至少一种磺化化合物的水溶液混合来提高木浆的机械强度和亮度的方法，所得混合物的干固体稠度为20-50％的木浆，基于所述混合物的重量; 使混合物与温度高于100℃的加热气体接触，以使混合物中木浆的干固体稠度增加至65至90重量％的范围。

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