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1. 发明公开

EP1602671A4 METHOD OF MANUFACTURING WATER ABSORBING RESIN AND DRYING APPARATUS USED FOR THE METHOD 审中-公开
标题翻译：用于生产吸水性树脂，并确保干燥设备USED
公开(公告)号：EP1602671A4
公开(公告)日：2008-09-17
申请号：EP04714947
申请日：2004-02-26
申请人： SUMITOMO SEIKA CHEMICALS
发明人： KOUNO MICHIHISA , MAEDA NOBUHIRO
IPC分类号： C08F6/24 , B01F7/08 , B01J8/10 , B01J8/20 , C08F2/32 , C08F6/00 , C08F6/20 , F26B11/12 , F26B17/20
CPC分类号： B01J8/20 , B01F7/088 , B01J8/10 , C08F2/32 , C08F6/20 , C08F6/24 , F26B11/12 , F26B17/20
摘要： A method of manufacturing a water absorbing resin, comprising a polymerization step for generating the water absorbing resin by a negative-phase suspension polymerization method and a drying step for drying the water absorbing resin obtained in the polymerization step. A drying apparatus (X1) used in the drying step comprises an end wall (21), an end wall (22) opposed to the end wall (21), a peripheral wall (23) and a rotating shaft end part (24) extending between both end walls, an agitating means (25) formed on the rotating shaft part (24) for agitating the water absorbing resin while moving the resin from the end wall (21) to the end wall (22), an agitating means (26) formed on the rotating shaft part (24) for agitating the water absorbing resin while moving the resin from the end wall (22) to the end wall (21) between the agitating means (25) and the end wall (22).

2. 发明公开

EP2314264A4 WATER-ABSORBENT SHEET COMPOSITION 有权转让
标题翻译：水，列车编组
公开(公告)号：EP2314264A4
公开(公告)日：2013-05-08
申请号：EP09794340
申请日：2009-06-29
申请人： SUMITOMO SEIKA CHEMICALS
发明人： TAKATORI JUNICHI , HANDA MASAYOSHI , FUKUDOME SHINYA , MAEDA NOBUHIRO
IPC分类号： A61F13/49 , A61F13/53 , A61L15/22 , B32B27/12
CPC分类号： B32B5/26 , A61F13/15203 , A61F13/53 , A61F2013/530481 , B32B5/022 , B32B7/12 , B32B2250/20 , B32B2255/02 , B32B2255/26 , B32B2262/0253 , B32B2262/0276 , B32B2262/04 , B32B2262/14 , B32B2264/0228 , B32B2264/0235 , B32B2264/12 , B32B2307/728 , B32B2309/14 , B32B2555/02 , Y10T442/659

3. 发明公开

EP2599795A4 PRODUCTION METHOD FOR WATER ABSORBENT RESIN 有权
标题翻译：用于吸水性树脂的生产过程
公开(公告)号：EP2599795A4
公开(公告)日：2014-11-26
申请号：EP11812339
申请日：2011-07-20
申请人： SUMITOMO SEIKA CHEMICALS
发明人： YOKOYAMA HIDEKI , KIKUNO SACHI , HEGURI ATSUSHI , MAEDA NOBUHIRO
IPC分类号： C08F2/18 , A61L15/24 , A61L15/60 , C08F2/00 , C08F2/10 , C08F2/20 , C08F2/24 , C08F2/32 , C08F4/04 , C08F20/06 , C08F20/56 , C08F220/06 , C08L33/08
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.

4. 发明公开

EP2505594A4 PROCESS FOR PRODUCTION OF WATER-ABSORBING RESIN PARTICLES, WATER-ABSORBING RESIN PARTICLES, WATER-STOPPING MATERIAL, AND ABSORBENT ARTICLE 审中-公开
标题翻译：用于生产吸水性树脂颗粒，吸水树脂颗粒的疏水材料和吸收性物品
公开(公告)号：EP2505594A4
公开(公告)日：2013-11-06
申请号：EP10833214
申请日：2010-11-24
申请人： SUMITOMO SEIKA CHEMICALS
发明人： KIKUNO SACHI , HEGURI ATSUSHI , HANDA MASAYOSHI , MAEDA NOBUHIRO
IPC分类号： C08F8/00 , A61F13/49 , A61F13/53 , A61L15/60 , C08F2/32 , C08F6/00 , C08F20/00 , C08J3/24
CPC分类号： A61F13/53 , A61F13/15658 , C08F2/14 , C08F2/32 , C08F6/008 , C08F8/14 , C08F2800/10 , C08F2810/20 , C08J3/245 , C08J2333/02 , Y10T428/273 , Y10T428/31855 , C08F220/04

5. 发明公开

EP2832751A4 POLYMERIZATION REACTOR AND METHOD FOR MANUFACTURING WATER-ABSORBING RESIN 有权
标题翻译：聚合反应器和用于生产吸水性树脂的方法
公开(公告)号：EP2832751A4
公开(公告)日：2015-11-11
申请号：EP13768824
申请日：2013-03-25
申请人： SUMITOMO SEIKA CHEMICALS
发明人： MAEDA NOBUHIRO , HARA NAOAKI , TAKATORI JUNICHI
IPC分类号： C08F2/01 , B01J19/00 , C08F20/00
CPC分类号： B01J19/02 , B01J19/18 , B01J2219/00094 , B01J2219/0236 , C08F2/01 , C08F2/38 , C08F20/00 , C08F220/06
摘要： A polymerization reactor of the present invention includes a container body 1 and a jacket 2 covering the outer surface of the container body 1 and defining a passage for passing a cooling/heating medium between itself and the outer surface of the container body. The container body 1 is made of a clad metal plate including a support metal layer 11a having an inner surface at an inner side of the container body and an outer surface at an outer side of the container body, and an inner corrosion-resistant metal skin layer lib bonded to the inner surface of the support metal layer and being smaller in thickness than the support metal layer.

6. 发明公开

EP2599794A4 PRODUCTION METHOD FOR WATER ABSORBENT RESIN 有权
标题翻译：用于吸水性树脂的生产过程
公开(公告)号：EP2599794A4
公开(公告)日：2015-02-11
申请号：EP11812338
申请日：2011-07-20
申请人： SUMITOMO SEIKA CHEMICALS
发明人： YOKOYAMA HIDEKI , KIKUNO SACHI , HEGURI ATSUSHI , MAEDA NOBUHIRO
IPC分类号： C08F2/18 , B01J20/26 , C08F2/10 , C08F2/32 , C08F20/06 , C08F220/06
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.

7. 发明公开

EP2599797A4 PROCESS FOR PRODUCTION OF WATER-ABSORBABLE RESIN 有权
标题翻译：用于吸水的RESINS生产工艺
公开(公告)号：EP2599797A4
公开(公告)日：2014-11-26
申请号：EP11812341
申请日：2011-07-20
申请人： SUMITOMO SEIKA CHEMICALS
发明人： HEGURI ATSUSHI , KIKUNO SACHI , YOKOYAMA HIDEKI , MAEDA NOBUHIRO
IPC分类号： C08F2/18 , C08F2/10 , C08F2/32 , C08F20/06 , C08F20/56 , C08F220/06 , C08F220/56
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.

8. 发明公开

EP2599796A4 PROCESS FOR PRODUCTION OF WATER-ABSORBABLE RESIN 有权
标题翻译：用于吸水的RESINS生产工艺
公开(公告)号：EP2599796A4
公开(公告)日：2014-11-26
申请号：EP11812340
申请日：2011-07-20
申请人： SUMITOMO SEIKA CHEMICALS
发明人： KIKUNO SACHI , HEGURI ATSUSHI , YOKOYAMA HIDEKI , MAEDA NOBUHIRO
IPC分类号： C08F2/18 , A61L15/60 , B01J20/30 , C08F2/32 , C08F20/06 , C08F20/56 , C08F220/06 , C08F220/56
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.

9. 发明公开

EP2725039A4 METHOD FOR PRODUCING WATER-ABSORBENT RESIN 审中-公开
标题翻译：用于生产水性树脂
公开(公告)号：EP2725039A4
公开(公告)日：2014-11-12
申请号：EP11868374
申请日：2011-07-20
申请人： SUMITOMO SEIKA CHEMICALS
发明人： YOKOYAMA HIDEKI , HEGURI ATSUSHI , MAEDA NOBUHIRO
IPC分类号： C08F2/18 , A61L15/22 , A61L15/60 , B01J20/26 , C08F2/32 , C08F20/06 , C08F20/56 , C08F120/06 , C08F220/06 , C08L33/02
CPC分类号： C08F120/06 , B01J20/267 , C08F2/18 , C08F2/32 , C08F220/06 , C08F220/10 , C08F220/56

10. 发明公开

EP2301499A4 WATER ABSORBING SHEET COMPOSITE 有权转让
标题翻译：吸水复合轨
公开(公告)号：EP2301499A4
公开(公告)日：2014-11-05
申请号：EP09794341
申请日：2009-06-29
申请人： SUMITOMO SEIKA CHEMICALS
发明人： TAKATORI JUNICHI , HANDA MASAYOSHI , FUKUDOME SHINYA , MAEDA NOBUHIRO
IPC分类号： A61F13/15 , A61F13/53 , A61F13/534 , A61F13/539 , B32B5/02 , B32B5/26 , B32B7/12 , B32B27/12
CPC分类号： A61F13/15203 , A61F13/53 , A61F13/534 , A61F13/539 , A61F2013/530299 , A61F2013/530481 , A61F2013/530554 , A61F2013/5307 , A61F2013/53445 , A61F2013/53908 , A61F2013/53958 , B32B5/022 , B32B5/26 , B32B7/12 , B32B2250/20 , B32B2250/40 , B32B2255/02 , B32B2255/26 , B32B2264/02 , B32B2264/12 , B32B2307/728 , B32B2555/02 , Y10T442/659 , Y10T442/671
摘要： A water-absorbent sheet composition comprising a structure in which a water-absorbent resin and a hot melt adhesive are sandwiched with two or more sheets of hydrophilic nonwoven fabrics, wherein the hydrophilic nonwoven fabrics have a basis weight of 30 g/m 2 or more, and wherein the water-absorbent resin is contained in an amount of from 10 to 150 g/m 2 , and wherein the hot melt adhesive is contained in an amount of from 0.10 to 1.0 time that of the amount of the water-absorbent resin contained (based on weight). The water-absorbent sheet composition of the present invention exhibits some excellent effects that the sheet composition has sufficient absorbency not only for a liquid having a low viscosity but also a liquid having a high viscosity, without undergoing deformation of shape before or after liquid absorption, while being thin in style. Therefore, the water-absorbent sheet composition of the present invention is used as an absorbent material for sanitary napkins and incontinence pads, whereby a hygienic material not only that is thin and has excellent external design, but also free from inconveniences such as liquid leakage can be provided.

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