专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08865886B2 Method for recovery/reuse of N-oxyl compound 有权
标题翻译： N-氧基化合物的回收/再利用方法
公开(公告)号：US08865886B2
公开(公告)日：2014-10-21
申请号：US13257732
申请日：2010-02-16
申请人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
发明人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
IPC分类号： C07D211/00 , C08B16/00 , B01D61/00 , B01D61/42 , C07D211/94 , B01J31/02 , B01J31/40 , C08B15/02
CPC分类号： C07D211/94 , B01J31/0235 , B01J31/40 , B01J2231/70 , C08B15/02 , Y02P20/584
摘要： An effluent produced in oxidation of a cellulosic material with an oxidizing agent in the presence of an N-oxyl compound and a bromide and/or iodide is deionized by electrodialysis to an inorganic salt concentration of less than 0.4%, whereby the N-oxyl compound in the effluent is concentrated and recovered. The N-oxyl compound thus recovered can be reused in oxidation of a cellulosic material. Preferably, the effluent is subjected to reduction treatment and ion exchange resin treatment prior to the electrodialysis.
摘要翻译：在N-氧基化合物和溴化物和/或碘化物的存在下用氧化剂氧化纤维素材料产生的流出物通过电渗析去除，至无机盐浓度小于0.4％，由此N-氧基化合物在流出液中浓缩回收。如此回收的N-氧基化合物可以再次用于纤维素材料的氧化。优选地，在电渗析之前对流出物进行还原处理和离子交换树脂处理。

2. 发明申请

US20120009661A1 PROCESS FOR PRODUCING CELLULOSE GEL DISPERSION 审中-公开
标题翻译：生产纤维素凝胶分散剂的方法
公开(公告)号：US20120009661A1
公开(公告)日：2012-01-12
申请号：US13257719
申请日：2010-02-16
申请人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
发明人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
IPC分类号： D21C3/22 , B01J19/12 , C09D197/02
CPC分类号： C08J3/075 , C08B15/02 , C08J3/05 , C08J2301/04
摘要： A cellulosic material is oxidized with an oxidizing agent in the presence of (1) an N-oxyl compound and (2) a bromide, an iodide or a mixture thereof. The resulting material is subjected to defibration and dispersion treatment to prepare a cellulose nanofiber dispersion liquid. The dispersion liquid thus obtained is acidified so that the cellulose nanofibers are aggregated to form a gelatinous substance. Ultimately, the gelatinous substance is treated mechanically to obtain a cellulose gel dispersion liquid which has low water absorbency and does not tend to swell.
摘要翻译：在（1）N-氧基化合物和（2）溴化物，碘化物或其混合物的存在下，用氧化剂将纤维素材料氧化。对所得材料进行分散和分散处理以制备纤维素纳米纤维分散液。将得到的分散液酸化，使纤维素纳米纤维聚集形成凝胶状物质。最终，机械地处理凝胶状物质，得到吸水性低，不易溶胀的纤维素凝胶分散液。

3. 发明授权

US08377563B2 Papermaking additive and paper containing the same 有权
标题翻译：造纸添加剂和含有相同的纸张
公开(公告)号：US08377563B2
公开(公告)日：2013-02-19
申请号：US12922546
申请日：2009-03-25
申请人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
发明人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
IPC分类号： B32B23/04
CPC分类号： D21H17/25 , C08B15/02 , D21H11/18 , D21H19/10 , Y10T428/31971 , Y10T428/31982 , Y10T428/31993
摘要： A papermaking additive comprising cellulose nanofibers whose aqueous solution at a concentration of 2% (w/v) has a B-type viscosity (60 rpm, 20° C.) of 500 to 7000 mPa·s, preferably 500 to 2000 mPa·s is used to prepare a paper having improved air resistance and smoothness. This additive is prepared by oxidizing a cellulosic material with an oxidizing agent in the presence of (1) N-oxyl compound(s) and (2) bromide, iodide or a mixture thereof to prepare oxidized cellulose, and finely grinding the oxidized cellulose in a wet condition to convert the oxidized cellulose into nanofibers.
摘要翻译：一种造纸添加剂，其包含纤维素纳米纤维，其浓度为2％（w / v）的水溶液的B型粘度（60rpm，20℃）为500〜7000mPa·s，优选为500〜2000mPa·s 用于制备具有改善的空气阻力和光滑度的纸张。该添加剂通过在（1）N-氧基化合物和（2）溴化物，碘化物或其混合物的存在下用氧化剂氧化纤维素材料来制备，以制备氧化纤维素，并将氧化纤维素细粉碎将氧化纤维素转化成纳米纤维的湿条件。

4. 发明授权

US08287692B2 Processes for producing cellulose nanofibers 有权
标题翻译：生产纤维素纳米纤维的方法
公开(公告)号：US08287692B2
公开(公告)日：2012-10-16
申请号：US12811046
申请日：2008-12-25
申请人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
发明人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
IPC分类号： D21H13/02 , C08B1/00 , C08B15/04 , B82B3/00
CPC分类号： D21H17/25 , C08B15/02 , D21H11/18 , D21H11/20 , D21H19/34 , D21H21/18
摘要： Cellulose nanofibers are produced using a 4-hydroxy TEMPO derivative by treating a cellulosic material with an oxidizing agent in water in the presence of a cellulose oxidation catalyst containing an N-oxyl compound to prepare oxidized cellulos, and microfibrillating the oxidized cellulose.
摘要翻译：在含有N-氧基化合物的纤维素氧化催化剂的存在下，用水中的氧化剂处理纤维素材料制备氧化纤维素，并使氧化的纤维素微纤化，使用4-羟基TEMPO衍生物制备纤维素纳米纤维。

5. 发明申请

US20110008638A1 PAPERMAKING ADDITIVE AND PAPER CONTAINING THE SAME 有权
标题翻译：造纸添加剂和含有该添加剂的纸张
公开(公告)号：US20110008638A1
公开(公告)日：2011-01-13
申请号：US12922546
申请日：2009-03-25
申请人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
发明人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
IPC分类号： B32B29/00 , C08B1/00 , D21H11/00
CPC分类号： D21H17/25 , C08B15/02 , D21H11/18 , D21H19/10 , Y10T428/31971 , Y10T428/31982 , Y10T428/31993
摘要： A papermaking additive comprising cellulose nanofibers whose aqueous solution at a concentration of 2% (w/v) has a B-type viscosity (60 rpm, 20° C.) of 500 to 7000 mPa·s, preferably 500 to 2000 mPa·s is used to prepare a paper having improved air resistance and smoothness. This additive is prepared by oxidizing a cellulosic material with an oxidizing agent in the presence of (1) N-oxyl compound (s) and (2) bromide, iodide or a mixture thereof to prepare oxidized cellulose, and finely grinding the oxidized cellulose in a wet condition to convert the oxidized cellulose into nanofibers.
摘要翻译：一种造纸添加剂，其包含纤维素纳米纤维，其浓度为2％（w / v）的水溶液的B型粘度（60rpm，20℃）为500〜7000mPa·s，优选为500〜2000mPa·s 用于制备具有改善的空气阻力和光滑度的纸张。该添加剂通过在（1）N-氧基化合物和（2）溴化物，碘化物或其混合物存在下用氧化剂氧化纤维素材料来制备氧化纤维素，并将氧化纤维素细粉碎将氧化纤维素转化成纳米纤维的湿条件。

6. 发明申请

US20100282422A1 PROCESSES FOR PRODUCING CELLULOSE NANOFIBERS, CELLULOSE OXIDATION CATALYSTS AND METHODS FOR OXIDIZING CELLULOSE 有权
标题翻译：生产纤维素纳米纤维的方法，纤维素氧化催化剂和用于氧化纤维素的方法
公开(公告)号：US20100282422A1
公开(公告)日：2010-11-11
申请号：US12811046
申请日：2008-12-25
申请人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
发明人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iijima , Akira Isogai
IPC分类号： D21C3/16 , D21H11/00 , B01J31/18
CPC分类号： D21H17/25 , C08B15/02 , D21H11/18 , D21H11/20 , D21H19/34 , D21H21/18
摘要： The present invention aims to provide a process for producing cellulose nanofibers using a 4-hydroxy TEMPO derivative less expensive than TEMPO and a process capable of rapidly producing homogeneous cellulose nanofibers. Wood cellulose can be efficiently converted into nanofibers by a process for producing cellulose nanofibers comprising treating a cellulosic material with an oxidizing agent in water in the presence of a cellulose oxidation catalyst comprising an N-oxyl compound represented by formula 1 below: wherein R1 and R2 are each independently hydrogen or a C1-C6 straight or branched alkyl group; and (i) one of R4 or R5 is —OR, —OCOR or —OSO2R wherein R is a straight or branched carbon chain having 4 or less carbon atoms, and the other of R4 or R5 is hydrogen, and R3 and R6 are methyl, or (ii) R4 is hydrogen, and R5, R3 and R6 are taken together with a piperidine ring to form an aza-adamantane compound having formula 2 below: or a mixture thereof, and a compound selected from the group consisting of bromides, iodides and mixtures thereof to prepare oxidized cellulose, and microfibrillating the oxidized cellulose to convert it into nanofibers.
摘要翻译：本发明旨在提供使用比TEMPO便宜的4-羟基TEMPO衍生物的纤维素纳米纤维的制造方法以及能够快速制造均匀的纤维素纳米纤维的方法。木质纤维素可以通过生产纤维素纳米纤维的方法被有效地转化成纳米纤维，包括在含有由下式1表示的N-氧基化合物的纤维素氧化催化剂存在下用氧化剂在水中处理纤维素材料：其中R1和R2 各自独立地为氢或C1-C6直链或支链烷基; 和（i）R4或R5中的一个是-OR，-OCOR或-OSO2R，其中R是具有4个或更少碳原子的直链或支链碳链，R4或R5中的另一个是氢，R3和R6是甲基，或（ii）R 4为氢，并且R 5，R 3和R 6与哌啶环一起形成具有下式2的氮杂 - 金刚烷化合物：或其混合物，以及选自溴化物，碘化物及其混合物以制备氧化纤维素，并将氧化纤维素微纤化以将其转化成纳米纤维。

7. 发明申请

US20120065389A1 METHOD FOR RECOVERY/REUSE OF N-OXYL COMPOUND 有权
标题翻译： N-氧化物的还原/再利用方法
公开(公告)号：US20120065389A1
公开(公告)日：2012-03-15
申请号：US13257732
申请日：2010-02-16
申请人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iljima , Akira Isogai
发明人： Shoichi Miyawaki , Shiho Katsukawa , Hiroshi Abe , Yuko Iljima , Akira Isogai
IPC分类号： C07D211/94 , C25B7/00 , C08B16/00
CPC分类号： C07D211/94 , B01J31/0235 , B01J31/40 , B01J2231/70 , C08B15/02 , Y02P20/584
摘要： An effluent produced in oxidation of a cellulosic material with an oxidizing agent in the presence of an N-oxyl compound and a bromide and/or iodide is deionized by electrodialysis to an inorganic salt concentration of less than 0.4%, whereby the N-oxyl compound in the effluent is concentrated and recovered. The N-oxyl compound thus recovered can be reused in oxidation of a cellulosic material. Preferably, the effluent is subjected to reduction treatment and ion exchange resin treatment prior to the electrodialysis.
摘要翻译：在N-氧基化合物和溴化物和/或碘化物的存在下用氧化剂氧化纤维素材料产生的流出物通过电渗析去除，至无机盐浓度小于0.4％，由此N-氧基化合物在流出液中浓缩回收。如此回收的N-氧基化合物可以再次用于纤维素材料的氧化。优选地，在电渗析之前对流出物进行还原处理和离子交换树脂处理。

8. 发明申请

US20060237153A1 Printing papers 审中-公开
标题翻译：印刷纸
公开(公告)号：US20060237153A1
公开(公告)日：2006-10-26
申请号：US10562788
申请日：2004-06-29
申请人： Takashi Ochi , Shoichi Miyawaki , Akihiko Ouchi
发明人： Takashi Ochi , Shoichi Miyawaki , Akihiko Ouchi
IPC分类号： D21H11/00 , D21H25/00 , D21C9/10
CPC分类号： D21C9/001 , D21H17/63 , D21H25/04
摘要： Printing papers with reduced discoloration are obtained by using a pulp with improved discoloration. Printing papers with remarkably improved discoloration can be obtained by including a pulp consisting of one member or a mixed pulp of two or more members of bleached or unbleached mechanical pulps, semichemical pulps, chemical pulps and deinked pulps irradiated with UV and/or visible light in the presence of at least one additive selected from the group consisting of reducing agents, oxidizing agents and hydrogen-donating organic compounds.
摘要翻译：通过使用具有改进的变色的纸浆获得具有变色变色的印刷纸。可以通过包括由紫外线和/或可见光照射的漂白或未漂白的机械纸浆，半化学纸浆，化学纸浆和脱墨纸浆的两个或更多个成分的一个成员或混合纸浆组成的纸浆来获得显着改善的变色的印刷纸存在至少一种选自还原剂，氧化剂和给氢有机化合物的添加剂。

9. 发明申请

US20060207732A1 Methods for improving discoloration resistance of pulp and pulp improved in discoloration resistance 审中-公开
标题翻译：改善纸浆和纸浆耐变色性的方法提高了耐变色性
公开(公告)号：US20060207732A1
公开(公告)日：2006-09-21
申请号：US10533657
申请日：2003-11-07
申请人： Shoichi Miyawaki , Takashi Ochi , Akihiko Ouchi
发明人： Shoichi Miyawaki , Takashi Ochi , Akihiko Ouchi
IPC分类号： D21C9/00 , D21H11/14
CPC分类号： D21C9/001 , D21C9/1047 , D21H11/20
摘要： The present invention aims to provide a method for improving discoloration in pulp, characterized by a versatile technique adaptable to any type of pulp, a time-saving process, a great and permanent anti-fading effect, environmental friendliness and other properties, as well as a pulp with greatly improved discoloration obtained by said method for improving discoloration. Discoloration in pulp can be greatly improved by adding one or more additives selected from the group consisting of reducing agents, peroxides and hydrogen-donating organic compounds to one of bleached mechanical pulp, semi-chemical pulps, chemical pulp and deinked pulps or a mixture of two or more of them, and irradiating it with UV and/or visible light.
摘要翻译：本发明旨在提供一种改善纸浆变色的方法，其特征在于适用于任何类型纸浆的多用途技术，节省时间的工艺，伟大和永久的防褪色效果，环境友好性等特性，以及通过所述改善变色的方法获得的具有极大改善的变色的纸浆。通过将一种或多种选自还原剂，过氧化物和给氢有机化合物的添加剂添加到漂白机械纸浆，半化学纸浆，化学纸浆和脱墨纸浆中的一种添加剂或混合物中，可以大大提高纸浆中的变色两个或更多个，并用UV和/或可见光照射它们。

10. 发明申请

US20140053828A1 METHOD FOR PRODUCING CELLULOSE NANOFIBERS 有权
标题翻译：生产纤维素纳米纤维的方法
公开(公告)号：US20140053828A1
公开(公告)日：2014-02-27
申请号：US14008682
申请日：2012-03-14
申请人： Shiho Tsuji , Masahiko Fukazawa , Shoichi Miyawaki , Tomoaki Koyanagi
发明人： Shiho Tsuji , Masahiko Fukazawa , Shoichi Miyawaki , Tomoaki Koyanagi
IPC分类号： C08B15/00
CPC分类号： C08B15/00 , C08B15/04 , D01F1/02 , D01F2/02 , D21C9/002 , D21C9/007 , D21H11/18 , D21H11/20
摘要： Cellulose nanofibers are produced by means of a method comprising a step (A) of oxidizing a cellulosic starting material in the presence of an N-oxyl compound and a step (B) of forming the oxidized cellulosic starting material into nanofibers by defibrating the oxidized cellulosic starting material, and a step (C) of performing at least one selected from the following steps: a step (C-1) of treating the cellulosic starting material in water having a hydroxide ion concentration of 0.75 to 3.75 mol/L prior to performing the step (A); and a step (C-2) of subjecting the oxidized cellulosic starting material obtained from the step (A) to hydrolysis in an alkaline solution having a pH between 8 and 14 after performing the step (A) and prior to performing the step (B).
摘要翻译：纤维素纳米纤维通过包括在N-氧基化合物的存在下氧化纤维素原料的步骤（A）的方法和通过将氧化的纤维素纤维素去纤维来形成氧化的纤维素起始材料的步骤（B）起始原料和进行选自以下步骤中的至少一种的步骤（C）：在进行氢氧根离子浓度为0.75〜3.75mol / L的水中处理纤维素原料的工序（C-1）步骤（A）; 以及在进行步骤（A）之后并且在进行步骤（B）之前使由步骤（A）获得的氧化纤维素起始材料在pH为8至14的碱性溶液中水解的步骤（C-2））。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式