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1. 发明公开

EP2599797A1 PROCESS FOR PRODUCTION OF WATER-ABSORBABLE RESIN 有权
标题翻译： HERSTELLUNGSVERFAHRENFÜRWASSERABSORBIERBARE HARZE
公开(公告)号：EP2599797A1
公开(公告)日：2013-06-05
申请号：EP11812341.3
申请日：2011-07-20
申请人： Sumitomo Seika Chemicals Co. Ltd.
发明人： HEGURI, Atsushi , KIKUNO, Sachi , YOKOYAMA, Hideki , MAEDA, Nobuhiro
IPC分类号： C08F2/18 , C08F20/06 , C08F20/56
CPC分类号： C08F2/10 , C08F2/32 , C08F220/06 , C08F220/56
摘要： The present invention provides a method for producing a water-absorbent resin and a water-absorbent resin obtained by the method, more specifically, to provide a method for producing a water-absorbent resin by a reversed-phase suspension polymerization method, wherein an odor originating from a raw material component, in particular, a petroleum hydrocarbon dispersion medium, is further reduced as compared with a water-absorbent resin obtained by a conventional method, and to a water-absorbent resin obtained by the method. More specifically, the present invention provides A method for producing a water-absorbent resin by performing a reversed-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer in a petroleum hydrocarbon dispersion medium, comprising the following steps of: (A) performing a primary dispersion in the absence of surfactants by adding an aqueous solution of a water-soluble ethylenically unsaturated monomer containing a hydrophilic polymeric dispersion agent to a petroleum hydrocarbon dispersion medium in which a hydrophobic polymeric dispersion agent was heat-dispersed or heat-dissolved, under stirring; (B) further performing a secondary dispersion by adding a surfactant to a dispersion liquid obtained after the primary dispersion; and (C) performing the reversed-phase suspension polymerization by using a radical polymerization initiator; and the water-absorbent resin obtained by the method.
摘要翻译：本发明提供一种吸水性树脂的制造方法和吸水性树脂的制造方法，更具体地说，是提供一种通过反相悬浮聚合法制造吸水性树脂的方法，其中气味与通过常规方法获得的吸水性树脂相比，源自原料成分，特别是石油烃分散介质的含量与通过该方法获得的吸水性树脂相比进一步降低。更具体地，本发明提供了一种通过在石油烃分散介质中进行水溶性烯键式不饱和单体的反相悬浮聚合来制造吸水性树脂的方法，包括以下步骤：（A）在不含表面活性剂的情况下，通过在搅拌下将含有亲水性高分子分散剂的水溶性烯属不饱和单体的水溶液加入其中疏水聚合物分散剂热分散或热溶解的石油烃分散介质中， ; （B）通过向在一次分散后获得的分散液中加入表面活性剂进一步进行二次分散; 和（C）使用自由基聚合引发剂进行反相悬浮聚合; 和通过该方法获得的吸水性树脂。

2. 发明授权

EP2599797B1 PROCESS FOR PRODUCTION OF WATER-ABSORBABLE RESIN 有权
公开(公告)号：EP2599797B1
公开(公告)日：2019-01-23
申请号：EP11812341.3
申请日：2011-07-20
申请人： Sumitomo Seika Chemicals Co., Ltd.
发明人： HEGURI, Atsushi , KIKUNO, Sachi , YOKOYAMA, Hideki , MAEDA, Nobuhiro
IPC分类号： C08F2/18 , C08F20/06 , C08F20/56 , C08F2/32 , C08F2/10 , C08F220/06 , C08F220/56

3. 发明公开

EP2599796A1 PROCESS FOR PRODUCTION OF WATER-ABSORBABLE RESIN 有权
标题翻译：生产吸水树脂的方法
公开(公告)号：EP2599796A1
公开(公告)日：2013-06-05
申请号：EP11812340.5
申请日：2011-07-20
申请人： Sumitomo Seika Chemicals Co. Ltd.
发明人： KIKUNO, Sachi , HEGURI, Atsushi , YOKOYAMA, Hideki , MAEDA, Nobuhiro
IPC分类号： C08F2/18 , C08F20/06 , C08F20/56
CPC分类号： B01J20/30 , C08F2/18 , C08F2/32 , C08F220/06 , C08F220/56
摘要： The present invention provides a method for producing a water-absorbent resin comprising at least two stages of reversed-phase suspension polymerization, wherein an odor originated from a raw material component, in particular, a petroleum hydrocarbon dispersion medium, is further reduced as compared with a water-absorbent resin obtained by a conventional method, and a water-absorbent resin obtained by the method. More specifically, the present invention provides a method for producing a water-absorbent resin comprising at least two stages of reversed-phase suspension polymerization, wherein the first stage of the at least two stages of reversed-phase suspension polymerization comprises the following steps of: (A) performing a primary dispersion by stirring to mix in the absence of surfactants an aqueous solution of a water-soluble ethylenically unsaturated monomer containing a hydrophilic polymeric dispersion agent with a petroleum hydrocarbon dispersion medium in which a hydrophobic polymeric dispersion agent dissolves or disperses; (B) further performing a secondary dispersion by adding a surfactant to the resultant dispersion liquid; and (C) performing a polymerization by using a water-soluble radical polymerization initiator to obtain a water-absorbent resin as particles in a hydrous gel state which disperse in the petroleum hydrocarbon dispersion medium, and a water-absorbent resin obtained by the method.
摘要翻译：本发明提供一种包含至少两阶段的反相悬浮聚合的吸水性树脂的制造方法，其中源自原料组分，特别是石油烃分散介质的气味进一步降低通过常规方法获得的吸水性树脂和通过该方法获得的吸水性树脂。更具体地说，本发明提供了一种生产至少包括两阶段反相悬浮聚合的吸水树脂的方法，其中至少两阶段反相悬浮聚合的第一阶段包括以下步骤：（A）通过搅拌进行初步分散以在不存在表面活性剂的情况下混合含有亲水性聚合物分散剂的水溶性烯键式不饱和单体的水溶液与其中疏水性聚合物分散剂溶解或分散于其中的石油烃分散介质; （B）通过向所得分散液中加入表面活性剂进一步进行二次分散; 和（C）通过使用水溶性自由基聚合引发剂进行聚合，以获得分散在石油烃分散介质中的含水凝胶状态的颗粒形式的吸水树脂和通过该方法获得的吸水树脂。

4. 发明公开

EP2599795A1 PRODUCTION METHOD FOR WATER ABSORBENT RESIN 有权
标题翻译：吸水树脂的生产方法
公开(公告)号：EP2599795A1
公开(公告)日：2013-06-05
申请号：EP11812339.7
申请日：2011-07-20
申请人： Sumitomo Seika Chemicals Co. Ltd.
发明人： YOKOYAMA, Hideki , KIKUNO, Sachi , HEGURI, Atsushi , MAEDA, Nobuhiro
IPC分类号： C08F2/18 , C08F20/06 , C08F20/56
CPC分类号： C08F2/10 , A61L15/24 , A61L15/60 , C08F2/001 , C08F2/18 , C08F2/20 , C08F2/24 , C08F2/32 , C08F4/04 , C08F220/06 , C08L33/08 , Y10S526/91 , Y10S526/911
摘要： The present invention provides a method for producing a water-absorbent resin and a water-absorbent resin obtained by the method, more specifically, to provide a method for producing a water-absorbent resin by a reversed-phase suspension polymerization method, wherein an odor originating from a raw material component, in particular, a petroleum hydrocarbon dispersion medium, is further reduced as compared with a water-absorbent resin obtained by a conventional method, and to a water-absorbent resin obtained by the method. More specifically, the present invention provides a method for producing a water-absorbent resin having a further reduced odor as compared with a water-absorbent resin obtained by a conventional method as well as a water-absorbent resin produced by the same method, by maintaining the addition rate V from the pouring nozzle for the aqueous solution of the water-soluble ethylenically unsaturated monomer in a polymerization reaction tank not more than 0.30 [min -1 ], in the first stage polymerization step which is within the step of the conventional method upon performing multi-stages such as two or more stages of reversed-phase suspension polymerizations in a method for producing a water-absorbent resin, and thereby by being able to reduce the amount of the petroleum hydrocarbon dispersion medium remaining in the above water-absorbent resin.
摘要翻译：本发明提供一种生产吸水树脂的方法和通过该方法得到的吸水树脂，更具体地说，提供一种通过反相悬浮聚合法生产吸水树脂的方法，其中气味来自原料成分，特别是石油烃分散介质的吸水性树脂与通过现有方法得到的吸水性树脂相比进一步降低，并且涉及通过该方法得到的吸水性树脂。更具体地说，本发明提供了一种生产吸水性树脂的方法，该吸水性树脂与通过常规方法获得的吸水性树脂相比具有进一步降低的气味以及通过相同方法生产的吸水性树脂，在常规方法步骤中的第一阶段聚合步骤中，聚合反应槽中水溶性烯键式不饱和单体水溶液的浇注嘴的加入速率V不超过0.30 [min-1] 通过在吸水性树脂的制造方法中进行2阶段以上的反相悬浮聚合等多阶段，能够减少残留在上述吸水性树脂中的石油烃分散介质的量树脂。

5. 发明授权

EP2599795B1 PRODUCTION METHOD FOR WATER ABSORBENT RESIN 有权
公开(公告)号：EP2599795B1
公开(公告)日：2019-04-03
申请号：EP11812339.7
申请日：2011-07-20
申请人： Sumitomo Seika Chemicals Co., Ltd.
发明人： YOKOYAMA, Hideki , KIKUNO, Sachi , HEGURI, Atsushi , MAEDA, Nobuhiro
IPC分类号： C08F2/18 , C08F20/06 , C08F20/56 , A61L15/24 , A61L15/60 , C08F2/00 , C08F2/32 , C08F220/06 , C08F2/10 , C08F2/20 , C08F2/24 , C08F4/04 , C08L33/08

6. 发明授权

EP2599796B1 PROCESS FOR PRODUCTION OF WATER-ABSORBABLE RESIN 有权
公开(公告)号：EP2599796B1
公开(公告)日：2019-01-23
申请号：EP11812340.5
申请日：2011-07-20
申请人： Sumitomo Seika Chemicals Co., Ltd.
发明人： KIKUNO, Sachi , HEGURI, Atsushi , YOKOYAMA, Hideki , MAEDA, Nobuhiro
IPC分类号： C08F2/18 , C08F20/06 , C08F20/56 , C08F2/32 , C08F220/56 , C08F220/06 , A61L15/60 , B01J20/30

7. 发明授权

EP2599794B1 PRODUCTION METHOD FOR WATER ABSORBENT RESIN 有权
公开(公告)号：EP2599794B1
公开(公告)日：2019-04-17
申请号：EP11812338.9
申请日：2011-07-20
申请人： Sumitomo Seika Chemicals Co., Ltd.
发明人： YOKOYAMA, Hideki , KIKUNO, Sachi , HEGURI, Atsushi , MAEDA, Nobuhiro
IPC分类号： C08F2/18 , B01J20/26 , C08F20/06 , C08F220/06 , C08F2/10 , C08F2/32

8. 发明公开

EP2725039A1 METHOD FOR PRODUCING WATER-ABSORBENT RESIN 审中-公开
标题翻译：生产吸水树脂的方法
公开(公告)号：EP2725039A1
公开(公告)日：2014-04-30
申请号：EP11868374.7
申请日：2011-07-20
申请人： Sumitomo Seika Chemicals Co., Ltd.
发明人： YOKOYAMA, Hideki , HEGURI, Atsushi , MAEDA, Nobuhiro
IPC分类号： C08F2/18 , C08F20/06 , C08F20/56
CPC分类号： C08F120/06 , B01J20/267 , C08F2/18 , C08F2/32 , C08F220/06 , C08F220/10 , C08F220/56
摘要： The present invention provides a method for producing a water-absorbent resin and a water-absorbent resin obtained by the method, more specifically, to provide a method for producing a water-absorbent resin by a reversed-phase suspension polymerization method, wherein an odor originating from a raw material component, in particular, a petroleum hydrocarbon dispersion medium, is further reduced as compared with a water-absorbent resin obtained by a conventional method, and a water-absorbent resin obtained by the method. More specifically, the present invention provides a method for producing a water-absorbent resin by performing a reversed-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer in a petroleum hydrocarbon dispersion medium, comprising adding and dispersing an aqueous solution of a water-soluble ethylenically unsaturated monomer containing a hydrophilic polymeric dispersion agent to a petroleum hydrocarbon dispersion medium in the presence of a surfactant under stirring, and performing a reversed-phase suspension polymerization using a radical polymerization initiator, and a water-absorbent resin obtained by the method.
摘要翻译：本发明提供一种生产吸水树脂的方法和通过该方法得到的吸水树脂，更具体地说，提供一种通过反相悬浮聚合法生产吸水树脂的方法，其中气味来源于原料成分，特别是石油烃分散介质的吸水性树脂与通过现有方法得到的吸水性树脂相比进一步降低，并且得到了通过该方法得到的吸水性树脂。更具体地说，本发明提供一种通过在石油烃分散介质中进行水溶性烯键式不饱和单体的反相悬浮聚合而制备吸水性树脂的方法，该方法包括加入和分散水溶性烯属不饱和单体的水溶液，将含有亲水性高分子分散剂的水溶性烯属不饱和单体在表面活性剂的存在下，在搅拌下，使用自由基聚合引发剂进行反相悬浮聚合的方法，以及由该方法得到的吸水性树脂。

9. 发明公开

EP2599794A1 PRODUCTION METHOD FOR WATER ABSORBENT RESIN 有权
标题翻译：吸水树脂的生产方法
公开(公告)号：EP2599794A1
公开(公告)日：2013-06-05
申请号：EP11812338.9
申请日：2011-07-20
申请人： Sumitomo Seika Chemicals Co. Ltd.
发明人： YOKOYAMA, Hideki , KIKUNO, Sachi , HEGURI, Atsushi , MAEDA, Nobuhiro
IPC分类号： C08F2/18 , B01J20/26 , C08F20/06
CPC分类号： C08F2/10 , B01J20/261 , C08F2/18 , C08F2/32 , C08F220/06 , C08F222/1006
摘要： The present invention provides a method for producing a water-absorbent resin by a reversed-phase suspension polymerization method, wherein an odor originating from a raw material component, in particular, a petroleum hydrocarbon dispersion medium, was reduced, and a water-absorbent resin obtained by the method. More specifically, the present invention provides a method for producing a water-absorbent resin comprising performing a reversed-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer in a petroleum hydrocarbon dispersion medium by using a surfactant, wherein an aqueous solution of the water-soluble ethylenically unsaturated monomer is dispersed in the dispersion medium at a specific pouring rate to reduce an odor, and a water-absorbent resin obtained by the method, are provided.
摘要翻译：本发明提供一种通过反相悬浮聚合法制造吸水性树脂的方法，其中来源于原料组分特别是石油烃分散介质的气味降低，并且吸水性树脂通过该方法获得。更具体地说，本发明提供了一种生产吸水树脂的方法，该方法包括通过使用表面活性剂在石油烃分散介质中进行水溶性烯属不饱和单体的反相悬浮聚合，其中水的水溶液可溶性烯键式不饱和单体以特定的倾倒速度分散在分散介质中以减少气味，并提供通过该方法获得的吸水性树脂。

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