GB1184571A - Sheet Materials with a Microporous Structure and Method for their Manufacture. - Google Patents

Sheet Materials with a Microporous Structure and Method for their Manufacture.

Info

Publication number
GB1184571A
GB1184571A GB21610/67A GB2161067A GB1184571A GB 1184571 A GB1184571 A GB 1184571A GB 21610/67 A GB21610/67 A GB 21610/67A GB 2161067 A GB2161067 A GB 2161067A GB 1184571 A GB1184571 A GB 1184571A
Authority
GB
United Kingdom
Prior art keywords
layer
solvent
polymer
face
solution
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
GB21610/67A
Inventor
Kvetoslav Koutny
Cyril Holcik
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.)
CESKOSLOVENSKA ZD Y GUMARENSKE
Original Assignee
CESKOSLOVENSKA ZD Y GUMARENSKE
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 CESKOSLOVENSKA ZD Y GUMARENSKE filed Critical CESKOSLOVENSKA ZD Y GUMARENSKE
Publication of GB1184571A publication Critical patent/GB1184571A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0043—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by their foraminous structure; Characteristics of the foamed layer or of cellular layers
    • 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
    • C08J2201/05—Elimination by evaporation or heat degradation of a liquid phase
    • C08J2201/0502—Elimination by evaporation or heat degradation of a liquid phase the liquid phase 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
    • C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0544—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being aqueous

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Laminated Bodies (AREA)

Abstract

1,184,571. Microporous coatings. CESKOSLOVENSKE ZAVODY G UMARENSKE A PLASTIKARSKEOBOROVE REDITELSTVI. 10 May, 1967 [25 May, 1966], No. 21610/67. Heading B2E. [Also in Divisions B5 and C3] A method of forming a sheet material having a microporous structure includes forming a layer of a polymer solution in which the polymer concentration progressively decreases from face to face of the layer and coagulating the polymer in a layer to form pores of sizes progressively decreasing from face to face of the layer. The coagulation may be effected by means of a non-solvent agent miscible with the polymer solvent but not dissolving the polymer. The progressively decreasing concentration gradient may be achieved by partially evaporating the solvent from the polymer layer, applying layers, by e.g. spraying, brushing or extrusion, of varying concentration, by applying a layer of polymers in solution on the substrate impregnated with a solvent so that solvent penetrates into the solution, spraying a solvent on the surface of the applied layer, applying two layers of different polymers forming different structures, by partially eliminating the solvent and exposing the layer of polymer solution to a conditioning .or curing treatment at normal temperature in a medium having a relative humidity of 10-30% or by a combination of these. methods. Numerous suitable solvents are specified. Backings of woven, knitted or non-woven fibres, which may be needled-punched may be used. The fibres may be of synthetic or natural, organic or inorganic materials. Exemplified are fibres of polyamide, polyesters, albumen or collagen or mixtures of these. The coating material may be a polyurethane.
GB21610/67A 1966-05-25 1967-05-10 Sheet Materials with a Microporous Structure and Method for their Manufacture. Expired GB1184571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS352266 1966-05-25

Publications (1)

Publication Number Publication Date
GB1184571A true GB1184571A (en) 1970-03-18

Family

ID=5375557

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21610/67A Expired GB1184571A (en) 1966-05-25 1967-05-10 Sheet Materials with a Microporous Structure and Method for their Manufacture.

Country Status (2)

Country Link
FR (1) FR1517287A (en)
GB (1) GB1184571A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443641A1 (en) * 1990-01-17 1991-08-28 X-Flow B.V. Method for producing a flat porous product and the use thereof in the field of pharmacy, medicine, dentistry or cosmetics
GB2412627A (en) * 2004-04-02 2005-10-05 Mayo Workwear Res & Dev Ltd A process for producing a waterproof composite material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718532A (en) * 1970-04-08 1973-02-27 Usm Corp Microporous sheets and processes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0443641A1 (en) * 1990-01-17 1991-08-28 X-Flow B.V. Method for producing a flat porous product and the use thereof in the field of pharmacy, medicine, dentistry or cosmetics
US5169575A (en) * 1990-01-17 1992-12-08 X-Flow B.V. Method for producing a flat porous product
GB2412627A (en) * 2004-04-02 2005-10-05 Mayo Workwear Res & Dev Ltd A process for producing a waterproof composite material
GB2412627B (en) * 2004-04-02 2008-12-31 Mayo Workwear Res & Dev Ltd A process for preparing a waterproof composite material

Also Published As

Publication number Publication date
FR1517287A (en) 1968-03-15

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees