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1. 发明授权

US06214163B1 Super microfibrillated cellulose, process for producing the same, and coated paper and tinted paper using the same 有权
公开(公告)号：US06214163B1
公开(公告)日：2001-04-10
申请号：US09641955
申请日：2000-08-21
申请人： Yuji Matsuda , Mariko Hirose , Katsuhiko Ueno
发明人： Yuji Matsuda , Mariko Hirose , Katsuhiko Ueno
IPC分类号： D21H1116
CPC分类号： D21H27/38 , D21C9/007 , D21D1/36 , D21H11/18 , D21H21/28
摘要： A super microfibrillated cellulose having an arithmetic average fiber length of 0.05 to 0.1 mm, a water retention value of at least 350%, a rate of the number of fibers not longer than 0.25 mm of at least 95% based on the total number of the fibers as calculated by adding up, and an axial ratio of the fibers of at least 50. The super microfibrillated cellulose is produced by passing a slurry of a previously beaten pulp through a rubbing apparatus having two or more grinders which are arranged so that they can be rub together to microfibrillate the pulp to obtain microfibrillated cellulose and further super microfibrillate the obtained microfibrillated cellulose with a high-pressure homogenizer to obtain the super microfibrillated cellulose. A coated paper produced with a coating material containing the super microfibrillated cellulose, and a tinted paper produced from a paper stock containing the super microfibrillated cellulose as a carrier carrying a dye or pigment are also provided.

2. 发明授权

US06599390B2 Process for loading fibers with calcium carbonate in a plurality of reactors 失效
标题翻译：在多个反应器中用碳酸钙加载纤维的方法
公开(公告)号：US06599390B2
公开(公告)日：2003-07-29
申请号：US09903975
申请日：2001-07-12
申请人： Jörg Rheims , Klaus Doelle , Oliver Heise , Werner Witek
发明人： Jörg Rheims , Klaus Doelle , Oliver Heise , Werner Witek
IPC分类号： D21H1116
CPC分类号： D21H11/20 , D21C9/004 , D21H17/675 , D21H17/70
摘要： For a process and an apparatus for loading fibers contained in a pulp suspension with calcium carbonate, a calcium oxide and/or a medium containing calcium hydroxide is fed to the pulp suspension, and the so treated pulp suspension is further charged in several reactors with pure carbon dioxide or a medium containing carbon dioxide. The reactors can be connected in series and/or in parallel. The reactor can produce different forms of calcium carbonate.
摘要翻译：对于将含有碳酸钙的纸浆悬浮液中含有纤维的方法和装置，将含有氢氧化钙的氧化钙和/或含有氢氧化钙的介质加入到纸浆悬浮液中，并将经过处理的纸浆悬浮液进一步加入到具有纯的二氧化碳或含二氧化碳的介质。反应器可以串联和/或并联连接。反应器可以产生不同形式的碳酸钙。

3. 发明授权

US06183596B2 Super microfibrillated cellulose, process for producing the same, and coated paper and tinted paper using the same 失效
标题翻译：超微纤化纤维素，其制造方法，以及使用其的涂布纸和着色纸
公开(公告)号：US06183596B2
公开(公告)日：2001-02-06
申请号：US08886262
申请日：1997-07-01
申请人： Yuji Matsuda , Mariko Hirose , Katsuhiko Ueno
发明人： Yuji Matsuda , Mariko Hirose , Katsuhiko Ueno
IPC分类号： D21H1116
CPC分类号： D21H27/38 , D21C9/007 , D21D1/36 , D21H11/18 , D21H21/28
摘要： A super microfibrillated cellulose having an arithmetic average fiber length of 0.05 to 0.1 mm, a water retention value of at least 350%, a rate of the number of fibers not longer than 0.25 mm of at least 95% based on the total number of the fibers as calculated by adding up, and an axial ratio of the fibers of at least 50. The super microfibrillated cellulose is produced by passing a slurry of a previously beaten pulp through a rubbing apparatus having two or more grinders which are arranged so that they can be rub together to microfibrillate the pulp to obtain microfibrillated cellulose and further super microfibrillate the obtained microfibrillated cellulose with a high-pressure homogenizer to obtain the super microfibrillated cellulose. A coated paper produced with a coating material containing the super microfibrillated cellulose, and a tinted paper produced from a paper stock containing the super microfibrillated cellulose as a carrier carrying a dye or pigment are also provided.
摘要翻译：将具有0.05至0.1mm的算术平均纤维长度，至少350％的保水值，不超过0.25mm的纤维数不超过95％的超微纤化纤维素基于总数通过相加计算的纤维和纤维的轴比至少为50.超微纤化纤维素通过使预先捣碎的纸浆的浆料通过具有两个或更多个研磨机的摩擦装置来制备，所述磨碎装置被布置成使得它们可以一起摩擦纸浆以获得微纤化纤维素，并用高压均化器将所得微纤化纤维素进一步超微原纤化，得到超微纤化纤维素。还提供了由含有超微纤化纤维素的涂层材料制成的涂布纸和由含有超微纤化纤维素作为携带染料或颜料的载体的纸料制成的着色纸。

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