公开(公告)号：US20240130903A1

公开(公告)日：2024-04-25

申请号：US18269649

申请日：2021-12-15

Applicant: ORGANO CORPORATION

Inventor： Hitoshi TAKADA ,  Ryouta IWAURA

IPC: A61F13/53

CPC classification number: A61F13/53 ,  A61F2013/530226 ,  A61F2013/530481 ,  A61F2013/53089

Abstract: A composite absorber for absorbing liquid, the composite absorber having: a polymer absorbent having a hydrophilic continuous skeleton and continuous pores; and a highly absorbent polymer, wherein the polymer absorbent contains at least a —COOH group and —COONa group as an ion exchange group, and the total ion exchange capacity of the —COOH group and —COONa group per mass in a dry state is at least 4.0 mg equivalent/g.

公开(公告)号：US20220331776A1

公开(公告)日：2022-10-20

申请号：US17622399

申请日：2020-06-05

Applicant: ORGANO CORPORATION

Inventor： Hitoshi TAKADA ,  Ryouta IWAURA

IPC: B01J20/28 ,  B01J20/26 ,  B01J39/20 ,  C08J5/22

Abstract: A monolithic organic porous ion exchanger having a continuous skeleton and continuous pores, wherein the continuous skeleton is formed of an organic polymer being a hydrolysate of a crosslinked polymer of a (meth)acrylic acid ester and divinylbenzene, the organic polymer having any one or both of a —COOH group and a —COONa group as ion-exchange groups, the continuous skeleton has a thickness of 0.1 to 100 μm, the continuous pores have an average diameter of 1.0 to 1000 μm, the monolithic organic porous ion exchanger has a total pore volume of 0.5 to 50.0 mL/g, and has a total ion-exchange capacity of the —COOH group and the —COONa group per weight in a dry state of 4.0 mg equivalent/g or more.

公开(公告)号：US20240225920A9

公开(公告)日：2024-07-11

申请号：US18269649

申请日：2021-12-15

Applicant: ORGANO CORPORATION

Inventor： Hitoshi TAKADA ,  Ryouta IWAURA

IPC: A61F13/53

CPC classification number: A61F13/53 ,  A61F2013/530226 ,  A61F2013/530481 ,  A61F2013/53089

Abstract: A composite absorber for absorbing liquid, the composite absorber having: a polymer absorbent having a hydrophilic continuous skeleton and continuous pores; and a highly absorbent polymer, wherein the polymer absorbent contains at least a —COOH group and —COONa group as an ion exchange group, and the total ion exchange capacity of the —COOH group and —COONa group per mass in a dry state is at least 4.0 mg equivalent/g.

公开(公告)号：US20240116263A1

公开(公告)日：2024-04-11

申请号：US18270030

申请日：2021-12-15

Applicant: ORGANO CORPORATION

Inventor： Hitoshi TAKADA ,  Ryouta IWAURA

IPC: B32B5/18 ,  B32B3/04 ,  B32B5/02 ,  B32B5/24

CPC classification number: B32B5/18 ,  B32B3/04 ,  B32B5/02 ,  B32B5/245 ,  B32B2266/0214 ,  B32B2266/104 ,  B32B2307/726 ,  B32B2307/728

Abstract: A composite absorbent body for absorbing a liquid and for use as a sanitary article contains a polymeric absorber equipped with a hydrophilic continuous framework and continuous pores. The ratio of pore volume from pores having a pore radius of 1 μm or higher in the polymeric absorber is at least 90% of the pore volume of all pores.