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1. 发明公开

EP2415761A1 METHOD FOR RECOVERY/REUSE OF N-OXYL COMPOUND 有权
标题翻译：回收/重新使用N-氧化合物的方法
公开(公告)号：EP2415761A1
公开(公告)日：2012-02-08
申请号：EP10761496.8
申请日：2010-02-16
申请人： Nippon Paper Industries Co., Ltd.
发明人： MIYAWAKI, Shoichi , KATSUKAWA, Shiho , ABE, Hiroshi , IIJIMA, Yuko , ISOGAI, Akira
IPC分类号： C07D211/94 , D01F2/00 , B01J31/02 , B01J38/00 , 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离子化至无机盐浓度小于0.4％，由此N-氧基化合物在流出物中浓缩并回收。如此回收的N-氧基化合物可以重新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. 发明公开

EP2226414A1 PROCESS FOR PRODUCTION OF CELLULOSE NANOFIBER, CATALYST FOR OXIDATION OF CELLULOSE, AND METHOD FOR OXIDATION OF CELLULOSE 有权
标题翻译：一种用于制造纤维素纳米纤维为纤维素的氧化纤维素的氧化催化剂和工艺过程
公开(公告)号：EP2226414A1
公开(公告)日：2010-09-08
申请号：EP08867327.2
申请日：2008-12-25
申请人： Nippon Paper Industries Co., Ltd.
发明人： MIYAWAKI, Shoichi , KATSUKAWA, Shiho , ABE, Hiroshi , IIJIMA, Yuko , ISOGAI, Akira
IPC分类号： D01F2/00 , C08B15/02 , D21H19/34
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 R 1 and R 2 are each independently hydrogen or a C 1 -C 6 straight or branched alkyl group; and
(i) one of R 4 or R 5 is -OR, -OCOR or -OSO 2 R wherein R is a straight or branched carbon chain having 4 or less carbon atoms, and the other of R 4 or R 5 is hydrogen, and R 3 and R 6 are methyl, or
(ii) R 4 is hydrogen, and R 5 , R 3 and R 6 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和能够快速产生均匀的纤维素纳米纤维的方法更便宜4-羟基TEMPO衍生物的纤维素纳米纤维的方法。木材纤维素可以有效地转换成纳米纤维通过一种制备纤维素纳米纤维，其包括在水中的纤维素氧化催化剂，其包含N-氧基化合物的由下式1表示的存在下，在氧化剂处理与纤维素材料：worin R 1和 R 2各自独立地为氢或一个C 1 -C 6直链或支链烷基; 和（i）R 4或R 5为-OR，-OCOR的一个或-OSO 2 R，其中R是具有4个或更少碳原子的直链或支链碳链，以及其它的R 4或R 5是氢，且R 3和R 6是甲基，氢或（ii）R 4是，且R 5，R 3和R 6与哌啶环一起形成在氮杂金刚烷型化合物，其具有下式2：或其混合物和选自溴化物，碘化物和混合物中选择的化合物或其以制备氧化纤维素和微纤化氧化纤维素将其转化成纳米纤维。

3. 发明授权

EP2415761B1 METHOD FOR RECOVERY/REUSE OF N-OXYL COMPOUND 有权
标题翻译：回收/重新使用N-氧化合物的方法
公开(公告)号：EP2415761B1
公开(公告)日：2013-11-13
申请号：EP10761496.8
申请日：2010-02-16
申请人： Nippon Paper Industries Co., Ltd.
发明人： MIYAWAKI, Shoichi , KATSUKAWA, Shiho , ABE, Hiroshi , IIJIMA, Yuko , ISOGAI, Akira
IPC分类号： C07D211/94 , D01F2/00 , B01J31/02 , B01J38/00 , C08B15/02
CPC分类号： C07D211/94 , B01J31/0235 , B01J31/40 , B01J2231/70 , C08B15/02 , Y02P20/584

4. 发明公开

EP2415821A1 PROCESS FOR PRODUCING CELLULOSE GEL DISPERSION 审中-公开
标题翻译：一种用于生产ZELLULOSEGELDISPERSION
公开(公告)号：EP2415821A1
公开(公告)日：2012-02-08
申请号：EP10761497.6
申请日：2010-02-16
申请人： Nippon Paper Industries Co., Ltd.
发明人： MIYAWAKI, Shoichi , KATSUKAWA, Shiho , ABE, Hiroshi , IIJIMA, Yuko , ISOGAI, Akira
IPC分类号： C08J3/075 , D21H11/20
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.

5. 发明公开

EP2267222A1 ADDITIVE FOR PAPERMAKING AND PAPER CONTAINING THE SAME 有权
标题翻译：添加剂PAPERERHERSTELLUNG UND ES ENTHALTENDES PAPIER
公开(公告)号：EP2267222A1
公开(公告)日：2010-12-29
申请号：EP09728902.9
申请日：2009-03-25
申请人： Nippon Paper Industries Co., Ltd.
发明人： MIYAWAKI, Shoichi , KATSUKAWA, Shiho , ABE, Hiroshi , IIJIMA, Yuko , ISOGAI, Akira
IPC分类号： D21H11/18 , C08B15/02 , D01F2/00 , D21H19/10
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：将含有浓度为2％（w / v）的水溶液的纤维素纳米纤维的造纸添加剂的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，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润条件。

6. 发明授权

EP2415821B1 PROCESS FOR PRODUCING CELLULOSE GEL DISPERSION 有权
公开(公告)号：EP2415821B1
公开(公告)日：2019-04-10
申请号：EP10761497.6
申请日：2010-02-16
申请人： Nippon Paper Industries Co., Ltd.
发明人： MIYAWAKI, Shoichi , KATSUKAWA, Shiho , ABE, Hiroshi , IIJIMA, Yuko , ISOGAI, Akira
IPC分类号： C08J3/05 , C08J3/075 , C08B15/02

7. 发明授权

EP2267222B1 ADDITIVE FOR PAPERMAKING AND PAPER CONTAINING THE SAME 有权
标题翻译：造纸用添加剂和含有这种添加剂的纸张
公开(公告)号：EP2267222B1
公开(公告)日：2018-05-16
申请号：EP09728902.9
申请日：2009-03-25
申请人： Nippon Paper Industries Co., Ltd.
发明人： MIYAWAKI, Shoichi , KATSUKAWA, Shiho , ABE, Hiroshi , IIJIMA, Yuko , ISOGAI, Akira
IPC分类号： D21H11/18 , C08B15/02 , D01F2/00 , D21H19/10 , D21H17/25
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.

8. 发明授权

EP2226414B1 Processes for producing cellulose nanofibers, cellulose oxidation catalysts and methods for oxidizing cellulose 有权
标题翻译：一种用于制造纤维素纳米纤维为纤维素的氧化纤维素的氧化催化剂和工艺过程
公开(公告)号：EP2226414B1
公开(公告)日：2014-12-03
申请号：EP08867327.2
申请日：2008-12-25
申请人： NIPPON PAPER INDUSTRIES CO., LTD.
发明人： MIYAWAKI, Shoichi , KATSUKAWA, Shiho , ABE, Hiroshi , IIJIMA, Yuko , ISOGAI, Akira
IPC分类号： D01F2/00 , C08B15/02 , D21H19/34 , D21C5/00 , D21C9/00 , D21H11/04 , D21H11/06 , D21H15/00
CPC分类号： D21H17/25 , C08B15/02 , D21H11/18 , D21H11/20 , D21H19/34 , D21H21/18

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