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1. 发明申请

WO2003051940A1 ACRYLIC ACID COMPOSITION AND ITS PRODUCTION PROCESS, AND PROCESS FOR PRODUCING WATER-ABSORBENT RESIN USING THIS ACRYLIC ACID COMPOSITION, AND WATER-ABSORBENT RESIN 审中-公开
标题翻译：丙烯酸组合物及其制备方法，以及使用该丙烯酸组合物生产吸水树脂的方法和吸水树脂
公开(公告)号：WO2003051940A1
公开(公告)日：2003-06-26
申请号：PCT/JP2002/013161
申请日：2002-12-17
申请人： NIPPON SHOKUBAI CO., LTD. , NAKAHARA, Sei , ISHIZAKI, Kunihiko , FUJIMARU, Hirotama , NAKASHIMA, Yasuhisa , SAKAMOTO, Kazuhiko
发明人： NAKAHARA, Sei , ISHIZAKI, Kunihiko , FUJIMARU, Hirotama , NAKASHIMA, Yasuhisa , SAKAMOTO, Kazuhiko
IPC分类号： C08F20/06
CPC分类号： C08F20/06 , A61L15/60 , C08L33/02
摘要： In order to produce inexpensively with high productivity a water-absorbent resin of which: the residual monomer content and the water-extractable content are both low, and the properties are high, and the colorability is low; there is provided a process for producing a water-absorbent resin, which is a process for producing a crosslinked water-absorbent resin by polymerizing a monomer component including acrylic acid and/or its salt in a major proportion wherein the acrylic acid is a product obtained by catalytic gas phase oxidation of propylene and/or propane, with the process being characterized by comprising the steps of: preparing the monomer component from an acrylic acid composition that includes the unneutralized acrylic acid and a methoxyphenol and has a methoxyphenol content of 10 to 160 ppm by weight (based on the unneutralized acrylic acid); and then carrying out radical and/or ultraviolet polymerization of the resultant monomer component.
摘要翻译：为了低成本地生产低成本的吸水性树脂，其中残留单体含量和可萃取水分均低，性能高，着色性低; 提供了一种生产吸水性树脂的方法，该方法是通过使包含丙烯酸和/或其主要成分的丙烯酸和/或其盐的单体组分聚合来制备交联的吸水性树脂的方法，其中丙烯酸是获得的产物通过丙烯和/或丙烷的催化气相氧化，该方法的特征在于包括以下步骤：由丙烯酸组合物制备单体组分，所述组合物包括未中和的丙烯酸和甲氧基苯酚，并且甲氧基苯酚含量为10至160 重量ppm（基于未中和丙烯酸）; 然后进行所得单体组分的自由基和/或紫外聚合。

2. 发明授权

EP2484702B1 POLYACRYLIC ACID SALT-BASED WATER ABSORBENT RESIN AND METHOD FOR PRODUCING SAME 有权
标题翻译：吸水性树脂基于用于PRODUCING聚丙烯AND PROCESS
公开(公告)号：EP2484702B1
公开(公告)日：2015-12-02
申请号：EP10820690.5
申请日：2010-09-30
申请人： Nippon Shokubai Co., Ltd.
发明人： MATSUMOTO, Satoshi , ISHIZAKI, Kunihiko , TORII, Kazushi , FUJINO, Shin-ichi , SAKAMOTO, Kazuhiko
IPC分类号： C08F20/06 , C08F2/00 , C08F6/12
CPC分类号： C08F20/06 , B01J2219/00006 , C08J3/245 , C08J2333/02 , Y10T428/31859

3. 发明公开

EP2450338A1 PROCESS FOR PRODUCTION OF (METH)ACRYLIC ACID 有权
标题翻译：生产（甲基）丙烯酸的方法
公开(公告)号：EP2450338A1
公开(公告)日：2012-05-09
申请号：EP10794060.3
申请日：2010-06-24
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Kazuhiko , UENO, Koji , ISHII, Yoshitake , NAKAGAWA, Satoshi
IPC分类号： C07C51/43 , C07C57/07
CPC分类号： B01D9/0013 , B01D9/004 , C07C51/43 , C07C57/04
摘要： The objective of the present invention is to provide a process for production of (meth)acrylic acid with improved production efficiency by efficiently shifting from heating procedure to cooling procedure for a crystallizer. A process for production of (meth)acrylic acid according to the present invention is characterized in comprising the steps of crystallizing (meth) acrylic acid from a crude (meth) acrylic acid solution by using a batch type crystallizer, and melting the obtained (meth)acrylic acid crystal to obtain a (meth)acrylic acid melted liquid; wherein preliminary cooling of the crystallizer for the next crystallization step is started during transferring the (meth)acrylic acid melted liquid from the crystallizer.
摘要翻译：本发明的目的是提供一种生产效率提高的（甲基）丙烯酸的方法，该方法通过有效地从加热过程转移到结晶器的冷却过程。本发明的（甲基）丙烯酸的制造方法的特征在于，包括使用间歇式结晶器从粗（甲基）丙烯酸溶液中结晶（甲基）丙烯酸，并将所得的（甲基）丙烯酸）丙烯酸晶体以获得（甲基）丙烯酸熔融液; 其中用于下一结晶步骤的结晶器的初步冷却在从结晶器转移（甲基）丙烯酸熔融液体的过程中开始。

4. 发明公开

EP2439186A1 METHOD FOR CRYSTALLIZING (METH)ACRYLIC ACID AND METHOD FOR REGULATING CONTENT OF POLYMERIZATION INHIBITOR IN (METH)ACRYLIC ACID PRODUCT 有权
标题翻译： VERFAHREN ZUR KRISTALLISIERUNG VONACRYLSÄURE
公开(公告)号：EP2439186A1
公开(公告)日：2012-04-11
申请号：EP10783314.7
申请日：2010-05-27
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Kazuhiko , UENO, Koji , ISHII, Yoshitake , HIRAO, Harunori , NAKAGAWA, Satoshi
IPC分类号： C07C51/43 , C07C51/50 , C07C57/07 , C07C57/075
CPC分类号： C07C51/43 , C07C57/04
摘要： PROBLEM
There is provided a melting method of (meth)acrylic acid crystal which is capable of providing a higher quality of (meth)acrylic acid without carrying out an additional purification treatment to (meth)acrylic acid obtained by a crystallization operation accompanied by melting of (meth)acrylic acid. In addition, there is provided a simple method for adjusting a content of polymerization inhibitor in a product (meth)acrylic acid.
SOLUTION
In the crystallization method melting (meth)acrylic acid crystal while wetting with the crystalline molten liquid, a polymerization inhibitor is added to a molten liquid melted after initiation of melting, and all of crystal is melted while circulating and feeding the molten liquid containing said polymerization inhibitor to the crystal. In addition, a content of polymerization inhibitor in product (meth)acrylic acid is adjusted by adding a predetermined amount of polymerization inhibitor corresponding to a product specification to the molten liquid melted after initiation of melting.
摘要翻译：问题提供了（甲基）丙烯酸晶体的熔融方法，其能够提供更高质量的（甲基）丙烯酸，而不对通过伴随熔融的结晶操作获得的（甲基）丙烯酸进行额外的纯化处理（甲基）丙烯酸。此外，提供了调节产品（甲基）丙烯酸中阻聚剂含量的简单方法。解决方案在熔融（甲基）丙烯酸晶体的结晶方法中，与结晶熔融液体一起润湿的同时，在熔融开始后熔化的熔融液中加入聚合抑制剂，并且在循环并使包含所述阻聚剂结晶。另外，通过向熔融开始熔融后的熔融液中加入与产品规格相对应的规定量的聚合抑制剂来调节产品（甲基）丙烯酸中的聚合抑制剂的含量。

5. 发明授权

EP2394978B1 PROCESS FOR PRODUCTION OF (METH)ACRYLIC ACID 有权
公开(公告)号：EP2394978B1
公开(公告)日：2018-08-08
申请号：EP10738477.8
申请日：2010-01-29
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Kazuhiko , UENO, Koji , ISHII, Yoshitake , SUGIMOTO, Takashi , KITAURA, Masatsugu , NAKAGAWA, Satoshi , SUZUKI, Kunihiko
IPC分类号： C07C51/43 , C07C57/07
CPC分类号： C07C51/43 , C07C57/04
摘要： A process for producing (meth)acrylic acid of the present invention comprises the steps in the following order: a crystallization step of supplying a cooling medium cooled by a heat source device to a crystallizer to obtain a (meth)acrylic acid crystal from a crude (meth)acrylic acid solution; an adjustment step of returning the cooling medium discharged from the crystallizer to the crystallizer without cooling; a sweating step of supplying a heating medium to the crystallizer to partially melt the (meth)acrylic acid crystal, thereby obtaining a melted liquid, and discharging the melted liquid from the crystallizer; and a melting step of supplying the heating medium to the crystallizer to melt the (meth)acrylic acid crystal, thereby obtaining purified (meth)acrylic acid. According to the present invention, purified (meth)acrylic acid with high purity can be obtained.

6. 发明公开

EP2450341A1 DEVICE FOR CRYSTALLIZING ACRYLIC ACID AND METHOD FOR CRYSTALLIZING ACRYLIC ACID USING SAME 有权
标题翻译： DEVICE丙烯酸和方法，丙烯酸，以便结晶结晶
公开(公告)号：EP2450341A1
公开(公告)日：2012-05-09
申请号：EP10794056.1
申请日：2010-06-24
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Kazuhiko , UENO, Koji , ISHII, Yoshitake , KITAURA, Masatsugu
IPC分类号： C07C51/47 , B01D9/02 , C07C57/07
CPC分类号： B01D9/0013 , B01D9/004 , B01D9/0045 , C07C51/43 , C07C57/04
摘要： PROBLEM
An object of the present invention is to provide a crystallization unit capable of producing a purified acrylic acid having high purity efficiently.
SOLUTION
The present invention provides a crystallization unit to separate an acrylic acid-containing solution into a mother liquid and a purified acrylic acid, wherein the crystallization unit comprises a crystallizer having an exit to take out the mother liquid and the purified acrylic acid alternately; a supply line to supply the acrylic acid-containing solution to the crystallizer; and a recovery line to recover the mother liquid and the purified acrylic acid alternately from the crystallizer which is connected to the exit, and wherein the recovery line is equipped with an opening and closing unit consisting of a ball valve or a gate valve.
摘要翻译：问题本发明的一个目的是提供一种能够生产纯化的丙烯酸有效地具有高纯度的结晶单元。方案本发明提供了一种结晶单元，分离成含丙烯酸溶液进母液和纯化的丙烯酸，worin结晶单元包括具有退出取出母液和经纯化的丙烯酸。或者结晶; 的供应管线以供应含丙烯酸溶液中结晶; 和回收管线回收母液和经纯化的丙烯酸可替换地从结晶器的所有连接到所述出口，并worin回收管线在开口配备和球阀或闸阀的关闭单元组成的聚合物。

7. 发明公开

EP2394978A1 PROCESS FOR PRODUCTION OF (METH)ACRYLIC ACID 有权
标题翻译： HERSTELLUNGSVERFAHRENFÜR（METH）ACRYLSÄURE
公开(公告)号：EP2394978A1
公开(公告)日：2011-12-14
申请号：EP10738477.8
申请日：2010-01-29
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Kazuhiko , UENO, Koji , ISHII, Yoshitake , SUGIMOTO, Takashi , KITAURA, Masatsugu , NAKAGAWA, Satoshi , SUZUKI, Kunihiko
IPC分类号： C07C51/43 , C07C57/07
CPC分类号： C07C51/43 , C07C57/04
摘要： A process for producing (meth)acrylic acid of the present invention comprises the steps in the following order: a crystallization step of supplying a cooling medium cooled by a heat source device to a crystallizer to obtain a (meth)acrylic acid crystal from a crude (meth)acrylic acid solution; an adjustment step of returning the cooling medium discharged from the crystallizer to the crystallizer without cooling; a sweating step of supplying a heating medium to the crystallizer to partially melt the (meth)acrylic acid crystal, thereby obtaining a melted liquid, and discharging the melted liquid from the crystallizer; and a melting step of supplying the heating medium to the crystallizer to melt the (meth)acrylic acid crystal, thereby obtaining purified (meth)acrylic acid. According to the present invention, purified (meth)acrylic acid with high purity can be obtained.
摘要翻译：本发明的（甲基）丙烯酸的制造方法包括以下顺序的工序：将由热源装置冷却的冷却介质供给到结晶器的结晶工序，从原料得到（甲基）丙烯酸结晶（甲基）丙烯酸溶液; 将结晶器排出的冷却介质返回到结晶器而不冷却的调整步骤; 向结晶器供给加热介质以部分熔融（甲基）丙烯酸晶体，从而获得熔融液体并从结晶器中排出熔融液体的出汗步骤; 以及将加热介质供给结晶器以熔融（甲基）丙烯酸晶体的熔融步骤，从而获得纯化的（甲基）丙烯酸。根据本发明，可以得到高纯度的（甲基）丙烯酸。

8. 发明授权

EP2450338B1 PROCESS FOR PRODUCTION OF (METH)ACRYLIC ACID 有权
公开(公告)号：EP2450338B1
公开(公告)日：2020-02-12
申请号：EP10794060.3
申请日：2010-06-24
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Kazuhiko , UENO, Koji , ISHII, Yoshitake , NAKAGAWA, Satoshi
IPC分类号： C07C51/43 , C07C57/07 , C07C57/04 , B01D9/00

9. 发明授权

EP2275400B1 PROCESS FOR PRODUCING ACRYLIC ACID, AND PROCESS FOR PRODUCING HYDROPHILIC RESIN AND PROCESS FOR PRODUCING WATER ABSORPTIVE RESIN USING THE PROCESS 有权
标题翻译：工艺的生产丙烯酸及其制造方法亲水性树脂和一种用于生产水性树脂用这种方法
公开(公告)号：EP2275400B1
公开(公告)日：2017-01-11
申请号：EP09738750.0
申请日：2009-04-24
申请人： Nippon Shokubai Co., Ltd.
发明人： SAKAMOTO, Kazuhiko , ISHIKAWA, Masaru
IPC分类号： C07C51/25 , C07C51/43 , C07C51/44 , C07C51/487 , C07C57/04 , C08F220/06
CPC分类号： C07C51/44 , C07C51/25 , C07C51/43 , C07C51/487 , C08F220/06 , C07C57/04

10. 发明公开

EP2116571A1 GRANULAR WATER ABSORBER AND METHOD OF PRODUCING THE SAME 有权
标题翻译： GRANULARER WASSERABSORBER UND VERFAHREN ZU SEINER HERSTELLUNG
公开(公告)号：EP2116571A1
公开(公告)日：2009-11-11
申请号：EP08710756.1
申请日：2008-02-04
申请人： Nippon Shokubai Co., Ltd.
发明人： NAGASAWA, Makoto , SAKAMOTO, Kazuhiko , SAKAMOTO, Shigeru , TORII, Kazushi , TAHARA, Ryoko , IKEUCHI, Hiroyuki , FUJIMARU, Hirotama
IPC分类号： C08L33/02 , A61F13/15 , A61F13/49 , A61F13/53 , C08F2/44 , C08K5/37
CPC分类号： C08F2/44 , A61F2013/530583 , C08F220/06 , C08F222/1006 , C08K5/0008 , C08L33/02 , C08L71/02 , Y10T428/2982 , C08L2666/22
摘要： An object of the present invention is to provide a particle-shaped water absorbing agent having a remarkably improved surface color and excellent water-absorbing properties (better water absorption capacity, and lower water soluble content and residual monomer content) at the same time. In order to attain the object, a particle-shaped water absorbing agent according to the present invention is a particle-shaped water absorbing agent whose main component is a polyacrylic acid and/or a salt thereof, the particle-shaped water absorbing agent having a surface color of Hunter b value in a range of - 5 to 10, and having a cross-linking absorption property index (CPI) in a range of 1 to 100, the CPI defined by the following two equations: GEX = GVs + 17 / Ln water soluble content ; CPI = GEX / residual monomer content × 100
where GVs is gel volume in saline, Ln (water soluble content) is a logarithm natural of water soluble content.
摘要翻译：本发明的目的是提供一种具有显着改善的表面颜色和优异的吸水性（更好的吸水能力，更低的水溶性成分和残留的单体含量）的颗粒状吸水剂。为了达到上述目的，本发明的颗粒状吸水剂是主要成分为聚丙烯酸和/或其盐的粒状吸水剂，粒状吸水剂具有 Hunter b值的表面颜色在-5〜10的范围内，并且交联吸收特性指数（CPI）在1〜100的范围内，由以下两个等式定义的CPI：GEX = GVs + 17 / Ln水溶性成分; CPI = GEX /残留单体含量×100其中GV是盐水中的凝胶体积，Ln（水溶性含量）是水溶性成分的对数自然。

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