公开(公告)号：US20190291303A1

公开(公告)日：2019-09-26

申请号：US16431213

申请日：2019-06-04

Applicant: UNICHARM CORPORATION

Inventor： Takayoshi KONISHI ,  Toshio HIRAOKA ,  Noritomo KAMEDA ,  Hideaki ICHIURA ,  Hiroko NAKAOKA

IPC: B29B17/02 ,  D21C5/02

Abstract: Pulp fiber containing little ash is effectively recovered from a used sanitary product containing the pulp fiber and a polymer absorbent. The method according to the present invention comprises: a step for treating the used sanitary product with an ozone-containing gas and thus decomposing and removing at least a portion of the polymer absorbent in the used sanitary product; and a step for stirring the used sanitary product, that has been treated with the ozone-containing gas, in water or an aqueous solution containing an antiseptic and thus decomposing the used sanitary product into constituents. If required, the method may further comprise a step for separating the pulp fiber from the decomposition product obtained by the decomposition step.

公开(公告)号：US20190000698A1

公开(公告)日：2019-01-03

申请号：US16064073

申请日：2016-10-24

Applicant: UNICHARM CORPORATION

Inventor： Takayoshi KONISHI ,  Toshio HIRAOKA ,  Noritomo KAMEDA ,  Hideaki ICHIURA

IPC: A61F13/84 ,  A61L2/04 ,  A61L2/18 ,  B09B3/00 ,  D21H11/14 ,  D21B1/32

Abstract: Provided is a method for efficiently recovering pulp fiber from used hygiene products that include pulp fiber and a polymer absorbent. This method is characterized by including a step for introducing the used hygiene product into a treatment tank in which an aqueous solution with ozone dissolved therein has been introduced, and a step for treating the used hygiene product while infusing water into the treatment tank at a first flow rate, extracting the aqueous solution from the treatment tank at a second flow rate and introducing a gas containing ozone into the aqueous solution in the treatment tank, thereby decomposing the polymer absorbent, lowering the molecular weight thereof, and making the same dissolvable.

公开(公告)号：US20170284021A1

公开(公告)日：2017-10-05

申请号：US15512443

申请日：2015-08-07

Applicant: UNICHARM CORPORATION

Inventor： Takayoshi KONISHI ,  Toshio HIRAOKA ,  Noritomo KAMEDA ,  Hideaki ICHIURA ,  Hiroko NAKAOKA

IPC: D21C5/02 ,  A61L11/00 ,  D21B1/32

CPC classification number: D21C5/022 ,  A61L2/18 ,  A61L11/00 ,  B09B3/00 ,  B09B5/00 ,  B29B17/02 ,  B29B17/04 ,  C08J11/10 ,  C08J11/16 ,  D21B1/32 ,  D21C5/02 ,  Y02W30/622 ,  Y02W30/625 ,  Y02W30/646 ,  Y02W30/648 ,  Y02W30/702 ,  Y02W30/705

Abstract: Pulp fiber containing little ash is effectively recovered from a used sanitary product containing the pulp fiber and a polymer absorbent. The method according to the present invention comprises: a step for treating the used sanitary product with an ozone-containing gas and thus decomposing and removing at least a portion of the polymer absorbent in the used sanitary product; and a step for stirring the used sanitary product, that has been treated with the ozone-containing gas, in water or an aqueous solution containing an antiseptic and thus decomposing the used sanitary product into constituents. If required, the method may further comprise a step for separating the pulp fiber from the decomposition product obtained by the decomposition step.

公开(公告)号：US20200238574A1

公开(公告)日：2020-07-30

申请号：US16262849

申请日：2019-01-30

Applicant: UNICHARM CORPORATION

Inventor： Takayoshi KONISHI ,  Toshio HIRAOKA ,  Noritomo KAMEDA ,  Hideaki ICHIURA ,  Hiroko NAKAOKA

IPC: B29B17/02 ,  D21C5/02

Abstract: Pulp fiber containing little ash is effectively recovered from a used sanitary product containing the pulp fiber and a polymer absorbent. The method according to the present invention comprises: a step for treating the used sanitary product with an ozone-containing gas and thus decomposing and removing at least a portion of the polymer absorbent in the used sanitary product; and a step for stirring the used sanitary product, that has been treated with the ozone-containing gas, in water or an aqueous solution containing an antiseptic and thus decomposing the used sanitary product into constituents. If required, the method may further comprise a step for separating the pulp fiber from the decomposition product obtained by the decomposition step.

公开(公告)号：US20130330990A1

公开(公告)日：2013-12-12

申请号：US13862779

申请日：2013-04-15

Applicant: UNICHARM CORPORATION

Inventor： Hideaki ICHIURA ,  Masaaki MORIKAWA ,  Masaki TAKAHASHI ,  Noriyoshi NISHIDA ,  Takamitsu IGAUE ,  Takayoshi Konishi

IPC: B01J20/28 ,  D06M11/00

CPC classification number: B01J20/28038 ,  A61F13/8405 ,  A61L15/00 ,  B05D1/36 ,  B05D3/0254 ,  B05D7/02 ,  D06M11/00 ,  D06M15/13 ,  D06M2101/20 ,  Y10T442/20

Abstract: Provided is a method for producing a functional material, including the steps of: bringing a polyvalent metal cation aqueous solution into contact with a base material; bringing a polyanion aqueous solution containing a functional component into contact with the base material previously in contact with the polyvalent metal cation aqueous solution to bond the polyvalent metal cations and the polyanions to each other, and thereby forming an insoluble compound containing the functional component; and drying the base material including the insoluble compound.

Abstract translation: 本发明提供功能材料的制造方法，其特征在于，包括以下工序：使多价金属阳离子水溶液与基材接触; 使含有功能性成分的聚阴离子水溶液与先前与多价金属阳离子水溶液接触的基材接触，使多价金属阳离子和聚阴离子彼此结合，由此形成含有功能成分的不溶性化合物; 并干燥包括不溶性化合物的基材。