GB1317682A - Method of making porous polymeric material - Google Patents

Method of making porous polymeric material

Info

Publication number
GB1317682A
GB1317682A GB1945271*[A GB1945271A GB1317682A GB 1317682 A GB1317682 A GB 1317682A GB 1945271 A GB1945271 A GB 1945271A GB 1317682 A GB1317682 A GB 1317682A
Authority
GB
United Kingdom
Prior art keywords
prepolymer
liquid
coating
organic liquid
emulsion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1945271*[A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kinyosha Co Ltd
Original Assignee
Kinyosha Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kinyosha Co Ltd filed Critical Kinyosha Co Ltd
Publication of GB1317682A publication Critical patent/GB1317682A/en
Priority to US00393977A priority Critical patent/US3856914A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/28—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a liquid phase from a macromolecular composition or article, e.g. drying of coagulum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/06—Specific viscosities of materials involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/12—Specific ratios of components used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/30—Cross-linking
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0543—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being organic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0545—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition
    • C08J2201/0546—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition the non-solvent being organic

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

1317682 Porous coating KINYO-SHA CO Ltd 8 June 1971 [15 June 1970] 19452/71 Heading B2E [Also in Division C3] A coated substrate, e.g. a non-woven nylon is made by making a porous polymer comprising a plurality of interconnected cells, by (a) mixing together a liquid prepolymer which can be converted from liquid to solid form by cross-linking during steps (b), an inert organic liquid which is insoluble in the prepolymer and does not boil under the conditions of step (b), and an emulsifier to form a stable emulsion of dispersed liquid prepolymer in the organic liquid; coating the substrate with the emulsion; (b) applying heat, radiation or light to the emulsion coating in the presence of a cross-linking agent for the prepolymer to coagulate the prepolymer dispersion into larger particles and to solidify these particles and to bond them together to form a porous polymer coating with a plurality of interconnected cells filled with the organic liquid and (c) extracting the organic liquid from the cells.
GB1945271*[A 1970-06-15 1971-06-08 Method of making porous polymeric material Expired GB1317682A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US00393977A US3856914A (en) 1970-06-15 1973-09-04 Method of making a porous polymeric material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45051351A JPS5018512B1 (en) 1970-06-15 1970-06-15

Publications (1)

Publication Number Publication Date
GB1317682A true GB1317682A (en) 1973-05-23

Family

ID=12884491

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1945271*[A Expired GB1317682A (en) 1970-06-15 1971-06-08 Method of making porous polymeric material

Country Status (3)

Country Link
JP (1) JPS5018512B1 (en)
FR (1) FR2096334A5 (en)
GB (1) GB1317682A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035904A1 (en) * 1996-03-27 1997-10-02 Novartis Ag Process for manufacture of a porous polymer from a mixture
WO1997035905A1 (en) * 1996-03-27 1997-10-02 Novartis Ag Process for manufacture of a porous polymer by use of a porogen
WO1997035906A1 (en) * 1996-03-27 1997-10-02 Novartis Ag High water content porous polymer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4473667A (en) * 1982-06-25 1984-09-25 Dow Corning Corporation Elastomeric foam

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997035904A1 (en) * 1996-03-27 1997-10-02 Novartis Ag Process for manufacture of a porous polymer from a mixture
WO1997035905A1 (en) * 1996-03-27 1997-10-02 Novartis Ag Process for manufacture of a porous polymer by use of a porogen
WO1997035906A1 (en) * 1996-03-27 1997-10-02 Novartis Ag High water content porous polymer
US6015609A (en) * 1996-04-04 2000-01-18 Navartis Ag Process for manufacture of a porous polymer from a mixture
US6060530A (en) * 1996-04-04 2000-05-09 Novartis Ag Process for manufacture of a porous polymer by use of a porogen
US6160030A (en) * 1996-04-04 2000-12-12 Novartis Ag High water content porous polymer

Also Published As

Publication number Publication date
DE2129706B2 (en) 1976-02-12
FR2096334A5 (en) 1972-02-11
DE2129706A1 (en) 1971-12-30
JPS5018512B1 (en) 1975-06-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee