公开(公告)号：US3896061A

公开(公告)日：1975-07-22

申请号：US38638873

申请日：1973-08-07

Applicant: TORAY INDUSTRIES

Inventor： TANZAWA HIROSHI ,  SAKAI YOSHITADA ,  MATSUSHITA TAKAO ,  FUJII YOSHISHIGE ,  SUGITA KOUJI ,  MAEKAWA HARUKI

IPC: B01D69/08 ,  B01D71/40 ,  C08L33/12 ,  D01D5/24 ,  C08F47/10

CPC classification number: D01D5/24 ,  B01D69/08 ,  B01D71/40 ,  C08L33/12 ,  C08L2205/02 ,  C08L2666/04

Abstract: Transparent hydrogels comprising isotactic polymethylmethacrylate and syndiotactic polymethylmethacylate make semi-permeable membranes of good strength and permeability which have particular utility in hemodialysis.

公开(公告)号：DE2341392A1

公开(公告)日：1974-03-07

申请号：DE2341392

申请日：1973-08-16

Applicant: TORAY INDUSTRIES

Inventor： OTSU SHIGA ,  TANZAWA HIROSHI ,  SAKAI YOSHITADA ,  KAMAKURA KANAGAWA ,  MATSUSHITA TAKAO ,  FUJII YOSHISHIGE ,  SUGITA KOUJI ,  MAEKAWA HARUKI

IPC: B01D69/08 ,  B01D71/40 ,  C08L33/12 ,  D01D5/24 ,  C08F29/46

公开(公告)号：JPH0852331A

公开(公告)日：1996-02-27

申请号：JP15945295

申请日：1995-06-26

Applicant: TORAY INDUSTRIES

Inventor： SAKAI YOSHITADA ,  SHIMAGAKI MASAAKI ,  TANAKA KAZUSANE

IPC: A61M1/16 ,  B01D69/02 ,  C08J5/18 ,  C08J7/00 ,  C08J7/04

Abstract: PURPOSE:To instantly enable the use of a hydrophobic membrane as a plasma collecting membrane by introducing a hydrophilic component made water- insoluble by radiation during a process for producing a membrane based on a hydrophobic polymer. CONSTITUTION:A hydrophobic membrane is produced by using a hydrophobic polymer such as polyethylene or polypropylene as a main material. In this membrane manufacturing process, a hydrophilic component such as vinyl pyrrolidone or vinyl alcohol is introduced into a membrane forming raw soln. This hydrophilic component is insolubilized by radiation such as gamma-rays and/or heat. By this constitution, a plasma collecting membrane using an instantly usable hydrophobia membrane is obtained without being accompanied by an elution component.

公开(公告)号：JPH1066846A

公开(公告)日：1998-03-10

申请号：JP11091197

申请日：1997-04-28

Applicant: TORAY INDUSTRIES

Inventor： SAKAI YOSHITADA ,  SHIMAGAKI MASAAKI ,  TANAKA KAZUSANE

IPC: B01D69/08 ,  B01D71/68 ,  C08J5/18 ,  C08J7/00 ,  C08J7/04

Abstract: PROBLEM TO BE SOLVED: To provide a hydrophilic membrane using a polysulfone membrane without being accompanied by a component having elution properties. SOLUTION: A hydrophilic membrane consists of a hydrophobic component based on polysulfone and physically insolubilized polyvinyl pyrrolidone and is produced by introducing vinyl pyrrolidone during a process manufacturing a membrane by using a hydrophobic polymer based on polysulfone as a main material and making the same water-insoluble by radiation and/or heat.

公开(公告)号：JPH0620519B2

公开(公告)日：1994-03-23

申请号：JP2099683

申请日：1983-02-10

Applicant: TORAY INDUSTRIES

Inventor： KUNITOMO TETSUNOSUKE ,  SAKAI YOSHITADA ,  KOBAYASHI TAKUICHI ,  KIMURA MUTSUMI

IPC: A61M1/16 ,  B01D71/12 ,  B01D71/40 ,  B01D71/42 ,  B01D71/68

公开(公告)号：JP2002001073A

公开(公告)日：2002-01-08

申请号：JP2000181036

申请日：2000-06-16

Applicant: TORAY INDUSTRIES

Inventor： SAKAI YOSHITADA ,  KURACHI TOMOKO ,  SUGAYA HIROYUKI

IPC: A61M1/02 ,  A61M1/16 ,  B01D61/24 ,  B01D71/82 ,  B01J20/26

Abstract: PROBLEM TO BE SOLVED: To prepare a membrane capable of removing a cationic substance safely and selectively. SOLUTION: The membrane capable of selectively removing cationic peptide or/and cationic low molecular weight protein and a cationic substance is obtained by using such material as a membrane material that 0.1-3% substance having anionic properties is introduced by a chemical bond.

公开(公告)号：JPH0852471A

公开(公告)日：1996-02-27

申请号：JP15945195

申请日：1995-06-26

Applicant: TORAY INDUSTRIES

Inventor： SAKAI YOSHITADA ,  SHIMAGAKI MASAAKI ,  TANAKA KAZUSANE

IPC: B01D69/02 ,  C02F1/44 ,  C08J5/18 ,  C08J7/00 ,  C08J7/04

Abstract: PURPOSE:To provide a water purifier using a hydrophobic film without accompanying eluting components. CONSTITUTION:This water purifier is produced by incorporating a hydrophilicity imparted film composed of a hydrophobic component and a physically insolubilized hydrophilic component, and a hydrophilicity imparted film obtained by introducing a hydrophilic component in the production process of a film using a hydrophobic polymer as a main base material and insolubilizing the hydrophilic component by radioactive rays and/or heating.

公开(公告)号：JPH0453548B2

公开(公告)日：1992-08-26

申请号：JP2814583

申请日：1983-02-22

Applicant: TORAY INDUSTRIES

Inventor： SAKAI YOSHITADA ,  KUNITOMO TETSUNOSUKE

IPC: A61M1/16

公开(公告)号：JPH01242105A

公开(公告)日：1989-09-27

申请号：JP6699788

申请日：1988-03-18

Applicant: TORAY INDUSTRIES

Inventor： SAKAI YOSHITADA ,  YOKOTA YOSHIKO ,  FUKUI YOKO

IPC: A61K35/12 ,  A61K35/14 ,  A61M1/36 ,  B01D71/40

Abstract: PURPOSE:To obtain inexpensive material generally usable for removing endotoxin by using a porous body in a specified porous state, consisting of methyl methacrylate polymer contg. methyl methacrylate above a specified proportion, based on monomer fraction to selectively remove endotoxin. CONSTITUTION:A hollow fiber is obtd. for example, by extruding a spinning soln. dissolved methyl methacrylate polymer and methyl methacrylate in a solvent from the outer discharge aperture of an annular spinneret by introducing dry nitrogen gas to the inside thereof to make hollow-fibrous material, and by coagulating and removing the solvent in water. A module is made of the material for removing endotoxin, consisting of the porous body contg. >=50% methyl methacrylate, based on the monomer fraction and having 30-90% equilibrium moisture content in a hydrated state at 20 deg.C. The liq. to be treated is circulated outside of the hollow fiber module. The endotoxin in the liq. to be treated in removed by adsorbing with the hollow-fibrous material for removing endotoxin.

公开(公告)号：JPS6397634A

公开(公告)日：1988-04-28

申请号：JP24337286

申请日：1986-10-14

Applicant: TORAY INDUSTRIES

Inventor： SAKAI YOSHITADA ,  SHIMAGAKI MASAAKI ,  TANAKA KAZUSANE

IPC: C08J5/18 ,  A61M1/16 ,  B01D67/00 ,  B01D69/08 ,  B01D71/68 ,  C08J7/00 ,  C08J7/04 ,  C08J9/36 ,  D06M15/53

Abstract: PURPOSE:To obtain the title membrane which contains no soluble component and can be used immediately, by introducing a hydrophilic component into a membrane based on a hydrophobic polymer and water-insolubilizing this component by radiation and/or heating. CONSTITUTION:A hydrophilic component (e.g., collagen) is introduced into a hydrophobic membrane based on a hydrophobic polymer (e.g., PP) and having an equilibrium moisture content (as measured after being stored in an atmosphere at 20 deg.C and an RH of 65% for one week, weight of water/weight of polymer)