公开(公告)号：US20100028659A1

公开(公告)日：2010-02-04

申请号：US12311525

申请日：2007-10-02

申请人： Kazuhisa Shimono ,  Tatsuo Takano ,  Toru Kawazu

发明人： Kazuhisa Shimono ,  Tatsuo Takano ,  Toru Kawazu

IPC分类号： B32B5/16 ,  C09D1/00 ,  C09D189/00 ,  C09D103/02 ,  C09D109/08

CPC分类号： C01F11/181 ,  C01P2004/10 ,  C01P2004/61 ,  C08K3/26 ,  C09D7/61 ,  C09D7/68 ,  C09D7/69 ,  D21H19/385 ,  D21H21/52 ,  Y10T428/258

摘要： A coating solution comprising: (A) an aragonite-type light calcium carbonate microparticle having an average major axis diameter of 1.0 to 2.8 μm and an average minor axis diameter of 0.15 to 0.3 μm, which is produced by diluting a calcium hydroxide slurry that has been treated by high-speed shearing until the slurry has a viscosity of 1000 cP or more at a concentration of 400 g/l to a concentration more than 50 g/l and then blowing carbon dioxide into the diluted slurry at a reaction starting temperature of 20 to 60° C. and at a rate of 1 to 3 l/min per kg of calcium hydroxide; and (B) a pigment comprising a wet heavy calcium carbonate cake. The coating solution enables to provide a coated paper having an excellent degree of brilliance and an excellent degree of whiteness, despite containing no kaolin.

摘要翻译： 一种涂布溶液，其包含：（A）平均长径为1.0〜2.8μm，平均短轴直径为0.15〜0.3μm的文石型轻质碳酸钙微粒，其通过稀释氢氧化钙浆料 通过高速剪切处理直到浆料的粘度为1000cP以上，浓度为400g / l至浓度大于50g / l，然后在二氧化碳的反应开始温度 20至60℃，以每升氢氧化钙1至3升/分钟的速率; 和（B）包含湿重质碳酸钙饼的颜料。 尽管不含高岭土，但是涂布溶液能够提供具有优异的光泽度和优异的白度的涂布纸。

公开(公告)号：US08252413B2

公开(公告)日：2012-08-28

申请号：US12513122

申请日：2007-11-28

申请人： Kazuhisa Shimono ,  Tatsuo Takano ,  Toru Kawazu

发明人： Kazuhisa Shimono ,  Tatsuo Takano ,  Toru Kawazu

IPC分类号： B32B5/16

CPC分类号： C01F11/181 ,  C01F11/18 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  C01P2006/19 ,  D21H17/67 ,  D21H17/675 ,  Y10T428/258 ,  Y10T428/2982

摘要： The light calcium carbonate in the form of microparticle aggregate of the present invention has a BET specific surface area not smaller than 10 m2/g and not larger than 25 m2/g, a pore volume of 0.05 cm3/g or larger for pores having a pore diameter of 0 to 1000 Å as determined by the nitrogen adsorption method, and a pore volume ratio of 25% or more for pores having a pore diameter of 250 Å or smaller based on the total pore volume as determined by the nitrogen adsorption method, and shows an oil absorption of 100 cc/100 g or more as determined by using liquid paraffin. By using this light calcium carbonate as a filler of printing paper, superior ink absorbing property and opacity (especially opacity after printing) can be imparted to the printing paper.

摘要翻译： 本发明的微粒聚集体形式的轻质碳酸钙的BET比表面积不小于10m 2 / g且不大于25m 2 / g，孔体积为0.05cm 3 / g以上 通过氮吸附法测定的孔径为0〜1000，并且通过氮吸附法测定的孔径为250以下的孔的孔体积比为25％以上， 并且显示出通过使用液体石蜡测定的100cc / 100g或更多的吸油量。 通过使用这种轻质碳酸钙作为印刷纸的填料，可以赋予印刷纸更好的吸墨性和不透明性（特别是印刷后的不透明度）。

公开(公告)号：US4234378A

公开(公告)日：1980-11-18

申请号：US34007

申请日：1979-04-27

申请人： Susumu Iwasaki ,  Osamu Nagasawa ,  Tatsuo Takano ,  Seiji Matsumoto

发明人： Susumu Iwasaki ,  Osamu Nagasawa ,  Tatsuo Takano ,  Seiji Matsumoto

IPC分类号： B32B15/12 ,  D21H17/34 ,  D21H17/35 ,  D21H17/36 ,  D21H17/37 ,  D21H17/55 ,  D21H17/56 ,  D21H17/67 ,  D21H19/06 ,  D21H27/00 ,  H01F1/117 ,  D21H3/78

CPC分类号： D21H17/56 ,  D21H17/34 ,  D21H17/35 ,  D21H17/36 ,  D21H17/37 ,  D21H17/375 ,  D21H17/55 ,  D21H17/67 ,  H01F1/117

摘要： An improved method for manufacturing a magnet paper sheet which comprises: thoroughly mixing about 70-90 parts by weight of magnetoplumbite barium ferrite powder and/or magnetoplumbite strontium ferrite powder essentially consisting of particles of primary particle size of about 0.1-2 microns and of secondary particle size smaller than about 20 microns, an anionic synthetic latex containing about 1-10 parts by weight in dry weight of a synthetic rubber and/or a synthetic resin such as SBR, NBR, polyvinyl acetate and polyacrylate, about 2-10 weight % of a cationic organic polymer electrolyte such as polyamine and polyethyleneimine based on the amount of the synthetic rubber and/or resin, and more than about 5 parts by weight of pulp fibers together into a slurry; forming the slurry into a paper sheet; and magnetizing the paper sheet.

摘要翻译： 一种用于制造磁性纸片的改进方法，其包括：将基本上由约0.1-2微米的一次粒径的颗粒组成的大约70-90重量份的磁铅石钡铁氧体粉末和/或磁铅石锶铁氧体粉末和二次 粒度小于约20微米的阴离子合成胶乳，含有约1-10重量份的干重合成橡胶和/或合成树脂如SBR，NBR，聚乙酸乙烯酯和聚丙烯酸酯，约2-10重量％ 的基于合成橡胶和/或树脂的量的多胺和聚乙烯亚胺的阳离子有机聚合物电解质，以及大于约5重量份的纸浆纤维一起成浆料; 将浆料形成纸片; 并使纸张磁化。

公开(公告)号：US08017101B2

公开(公告)日：2011-09-13

申请号：US10556934

申请日：2004-06-03

申请人： Kazuo Yamashita ,  Kazuhisa Shimono ,  Toru Kawazu ,  Tatsuo Takano

发明人： Kazuo Yamashita ,  Kazuhisa Shimono ,  Toru Kawazu ,  Tatsuo Takano

IPC分类号： C01F11/18 ,  C09C1/02

CPC分类号： D21H17/675 ,  C01F11/181 ,  C01P2004/10 ,  C01P2004/50 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/14

摘要： Carbon dioxide containing gas is blown into a calcium hydroxide slurry having a calcium hydroxide concentration of 100 to 400 g/L obtained by wet slaking calcined lime with 4 N hydrochloric acid activity (value at 3 minutes) of 150 to 400 mL to allow them to react until the carbonation rate becomes 50 to 85%, then 1 to 20% by volume of the calcium hydroxide slurry is added, and carbon dioxide containing gas is further blown in to terminate the reaction. The calcium carbonate obtained by this method is precipitated calcium carbonate aggregates having a secondary particle diameter of 1 to 10 μm and consisting of primary particles having a long diameter of 0.5 to 3.0 μm, a short diameter of 0.1 to 1.0 μm and an aspect ratio of 3 or more, has superior characteristics due to a BET specific surface area in the range of 8 to 20 m2/g and a pore volume in the range of 1.5 to 3.5 cm3/g, can be uniformly dispersed in pulp fiber, and thereby can be used to manufacture high bulk paper.

摘要翻译： 将含二氧化碳的气体吹入氢氧化钙浆料中，氢氧化钙浆料的氢氧化钙浓度为100〜400g / L，通过湿法煅烧石灰，4N盐酸活性（3分钟的值）为150〜400mL， 反应直到碳酸化速率达到50〜85％，然后加入1〜20体积％的氢氧化钙浆料，并进一步吹入含二氧化碳的气体以终止反应。 通过该方法得到的碳酸钙是二次粒径为1〜10μm的沉淀碳酸钙聚集体，其长径为0.5〜3.0μm，短径为0.1〜1.0μm，长径比为 3以上，由于比表面积为8〜20m 2 / g，孔体积为1.5〜3.5cm 3 / g，能够均匀地分散在纸浆纤维中，因此可以 用于制造高散纸。

公开(公告)号：US20100068506A1

公开(公告)日：2010-03-18

申请号：US12513122

申请日：2007-11-28

申请人： Kazuhisa Shimono ,  Tatsuo Takano ,  Toru Kawazu

发明人： Kazuhisa Shimono ,  Tatsuo Takano ,  Toru Kawazu

IPC分类号： B32B5/16 ,  C01F11/18

CPC分类号： C01F11/181 ,  C01F11/18 ,  C01P2004/50 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/17 ,  C01P2006/19 ,  D21H17/67 ,  D21H17/675 ,  Y10T428/258 ,  Y10T428/2982

摘要： The light calcium carbonate in the form of microparticle aggregate of the present invention has a BET specific surface area not smaller than 10 m2/g and not larger than 25 m2/g, a pore volume of 0.05 cm3/g or larger for pores having a pore diameter of 0 to 1000 Å as determined by the nitrogen adsorption method, and a pore volume ratio of 25% or more for pores having a pore diameter of 250 Å or smaller based on the total pore volume as determined by the nitrogen adsorption method, and shows an oil absorption of 100 cc/100 g or more as determined by using liquid paraffin. By using this light calcium carbonate as a filler of printing paper, superior ink absorbing property and opacity (especially opacity after printing) can be imparted to the printing paper.

摘要翻译： 本发明的微粒聚集体形式的轻质碳酸钙的BET比表面积不小于10m 2 / g且不大于25m 2 / g，孔体积为0.05cm 3 / g以上 通过氮吸附法测定的孔径为0〜1000，并且通过氮吸附法测定的孔径为250以下的孔的孔体积比为25％以上， 并且显示出通过使用液体石蜡测定的100cc / 100g或更多的吸油量。 通过使用这种轻质碳酸钙作为印刷纸的填料，可以赋予印刷纸更好的吸墨性和不透明性（特别是印刷后的不透明度）。

公开(公告)号：US20070169905A1

公开(公告)日：2007-07-26

申请号：US10556934

申请日：2004-06-03

申请人： Kazuo Yamashita ,  Kazuhisa Shimono ,  Toru Kawazu ,  Tatsuo Takano

发明人： Kazuo Yamashita ,  Kazuhisa Shimono ,  Toru Kawazu ,  Tatsuo Takano

IPC分类号： C09C1/02 ,  C01F11/18 ,  D21H17/67

CPC分类号： D21H17/675 ,  C01F11/181 ,  C01P2004/10 ,  C01P2004/50 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/12 ,  C01P2006/14

摘要： Carbon dioxide containing gas is blown into a calcium hydroxide slurry having a calcium hydroxide concentration of 100 to 400 g/L obtained by wet slaking calcined lime with 4 N hydrochloric acid activity (value at 3 minutes) of 150 to 400 mL to allow them to react until the carbonation rate becomes 50 to 85%, then 1 to 20% by volume of the calcium hydroxide slurry is added, and carbon dioxide containing gas is further blown in to terminate the reaction. The calcium carbonate obtained by this method is precipitated calcium carbonate aggregates having a secondary particle diameter of 1 to 10 μm and consisting of primary particles having a long diameter of 0.5 to 3.0 μm, a short diameter of 0.1 to 1.0 μm and an aspect ratio of less than 3, has superior characteristics due to a BET specific surface area in the range of 8 to 20 m2/g and a pore volume in the range of 1.5 to 3.5 cm3/g, can be uniformly dispersed in pulp fiber, and thereby can be used to manufacture high bulk paper.

摘要翻译： 将含二氧化碳的气体吹入氢氧化钙浆料中，氢氧化钙浆料的氢氧化钙浓度为100〜400g / L，通过湿法煅烧石灰，4N盐酸活性（3分钟的值）为150〜400mL， 反应直到碳酸化速率达到50〜85％，然后加入1〜20体积％的氢氧化钙浆料，并进一步吹入含二氧化碳的气体以终止反应。 通过该方法得到的碳酸钙是二次粒径为1〜10μm的沉淀碳酸钙凝集体，长径为0.5〜3.0μm的初级粒子，0.1〜1.0μm的短径，长径比为 小于3，由于BET比表面积在8至20m 2 / g的范围内具有优异的特性，并且孔体积在1.5至3.5cm 3 / SUP> / g可以均匀分散在纸浆纤维中，从而可用于制造高质量纸。

公开(公告)号：US5230734A

公开(公告)日：1993-07-27

申请号：US917163

申请日：1992-07-20

申请人： Tetsuo Kumasaka ,  Hideki Horiuchi ,  Fumihiko Kaneko ,  Tatsuo Takano

发明人： Tetsuo Kumasaka ,  Hideki Horiuchi ,  Fumihiko Kaneko ,  Tatsuo Takano

IPC分类号： C01F11/18 ,  C09C1/00 ,  D21H19/38

CPC分类号： D21H19/385 ,  C01F11/18 ,  C01F11/181 ,  C09C1/009 ,  C01P2004/10 ,  C01P2004/20 ,  C01P2004/52 ,  C01P2004/54 ,  C01P2004/62 ,  C01P2006/12

摘要： A calcium-magnesium carbonate composite consisting of particles of calcium carbonate and magnesium carbonate hydroxide and having excellent properties, for example, as a pigment for paper coating is proposed, which is a uniform blend of:(A) particles of calcium carbonate having a crystalline structure of aragonite with a columnar particle configuration having a length in the range from 0.5 to 3 .mu.m and a diameter in the range from 0.1 to 0.3 pm with an aspect ratio in the range from 5 to 15; and(B) particles of magnesium carbonate hydroxide having a plate-like particle configuration with a particle diameter in the range from 2 to 7 .mu.m and a thickness in the range from 0.05 to 0.5 .mu.m,the blend having an overall specific surface area in the range from 15 to 30 m.sup.2 /g and the weight proportion of the particles of calcium carbonate to the particles of magnesium carbonate hydroxide being in the range from 95:5 to 50:50 calculated as the respective hydroxides. The carbonate composite can be prepared by the step-wise carbonation reaction of a mixed aqueous slurry of calcium and magnesium hydroxides with carbon dioxide gas under very strictly controlled conditions.