GB2288755A - Coated fabric - Google Patents

Coated fabric Download PDF

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Publication number
GB2288755A
GB2288755A GB9508577A GB9508577A GB2288755A GB 2288755 A GB2288755 A GB 2288755A GB 9508577 A GB9508577 A GB 9508577A GB 9508577 A GB9508577 A GB 9508577A GB 2288755 A GB2288755 A GB 2288755A
Authority
GB
United Kingdom
Prior art keywords
polymer
foaming agent
cloth
coagulated
derivatives
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.)
Withdrawn
Application number
GB9508577A
Other versions
GB9508577D0 (en
Inventor
Peter Lofts
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.)
Scapa Group Ltd
Original Assignee
Scapa Group 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 Scapa Group Ltd filed Critical Scapa Group Ltd
Publication of GB9508577D0 publication Critical patent/GB9508577D0/en
Publication of GB2288755A publication Critical patent/GB2288755A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/08—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with halogenated hydrocarbons
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
    • D06M15/233—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
    • D06M15/248—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing chlorine
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/04—Processes in which the treating agent is applied in the form of a foam
    • 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
    • D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/042—Acrylic polymers
    • 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
    • D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06—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 by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products
    • 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
    • D06N3/04—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 by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/10—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 by reactions only involving carbon-to-carbon unsaturated bonds with styrene-butadiene copolymerisation products or other synthetic rubbers or elastomers except polyurethanes
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/30—Protecting wire-cloths from mechanical damage

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Paper (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

A method of making a coated fabric to be used in a phase separation process comprising the steps of impregnating a cloth with at least one coagulable polymer latex and coagulating the polymer on or in the cloth. The coagulation is carried from a water phase so as to provide a cloth having a porous polymer coating thereon and/or therein. The water phase is preferably steam. The coated materials are used mainly for filtering but may also be used in paper-making processes.

Description

COATED FABRIC The present invention relates to coated fabrics, particularly for use in phase separation processes such as papermaking and filtration. The coated fabrics of the invention have particular, but not exclusive, application in the filtration of ingestible materials.
It is known to prepare coated filter fabrics by applying a solution of a polyurethane in DMF (dimethyl formamide) either by immersion in or by coating on one side and then immersing the treated cloth in water. The polyurethane is coagulated and is attached to the fabric as a result.
DMF is a toxic substance. If the filter fabric is to be used in foodstuffs related areas any residual DMF remaining in the filter fabric may end up in the foodstuffs which come near or into contact with the filter fabric. This is obviously undesirable.
The present invention seeks to provide an alternative method of making a coated filter fabric which avoids the use of toxic substances such as DMF.
According to the present invention there is provided a method of making a coated fabric to be used in a phase separation process comprising the steps of impregnating a cloth with at least one coagulable polymer latex and coagulating the polymer on or in the cloth, wherein the method comprises carrying out the coagulation from the water phase so as to provide a cloth having a porous polymer coating thereon and/or therein.
The polymer is preferably coagulated with steam or superheated steam rather than water.
The polymer used may comprise polyurethane. However, polyurethane is susceptible to hydrolytic degradation. In some instances it is desirable to use polymers having improved resistance to hydrolytic degradation. In such circumstances polymers containing hydrolysis-susceptible linkages such as esters or amide should be avoided. Suitable examples include polyisoprene, polybutadiene, polyvinylidene dichloride, polyvinyl chloride, polychloroprene and particularly styrenebutadiene polymers or mixtures thereof. Fabrics having such polymer coatings surprisingly exhibit vastly improved resistance to hydrolysis, acids/alkalis and oxidation.
The cloth substrate may be woven or nonwoven, but is preferably a needlefelt. The cloth may be made from any suitable material, such as polypropylene.
The coagulated polymer is preferably foamed, said foaming occurring simultaneously with or immediately after the coagulation. Foaming may be achieved either by physical means or by using a chemical foaming agent. The foaming agent preferably comprises a low boiling water insoluble halogenated hydrocarbon. The halogenated hydrocarbon preferably has a boiling point in the range from -40 C to 500C and more preferably in the range from -20 C to 30at. Preferred foaming agents include 1,2-dibromo-1,1,2,2-tetrafluoroethane and trichlorofluoroethane.
The foaming and/or the coagulation of the polymer may be achieved by heating the impregnated coated textile substrate, preferably in the presence of a heat coagulant.
Suitable heat coagulants include vinyl alkyl ether and derivatives thereof, polyacetals, polythio ethers, poly(ethylene oxide) and derivatives thereof, and poly(propylene/ethylene oxide) and derivatives thereof. The heat coagulant may be built into the backbone of the polymer.
Usually heating to a temperature of about 700C results solely in coagulation. Heating above this temperature will generally also result in foaming provided a foaming agent is present.
Coagulation may also be achieved by means of adding a suitable electrolyte and/or varying the pH of the polymer latex. For example, with cationic polymers coagulation may occur at an alkaline pH and for anionic polymers coagulation occurs at an acid pH. This may be followed by heating to achieve satisfactory foaming.
The coagulated coatings may be particle-reinforced or fibre-reinforced. The strength of the individual cells in the coagulated cellular polymer network can be improved by the addition of finely-chopped fibres such as RYTON fibres and/or finely dispersed particles such as PTFE particles. These particles and/or fibres should ideally have a chemical inertness, heat stability and acid and/or alkali resistance at least similar to that of the coagulated polymer. The particles and fibres would be incorporated into the polymer emulsion prior to coagulation.
Preferably the filter cloths have a coating thickness in the range from 0.5 to 2.Omm, corresponding to 50 to 250 (preferably 120 to 180) g/m2 addition by weight of polymer. The coating may be applied by any coating technique such as knife coating, dip coating, lick coating, screen printing or spraying. Reverse roller techniques may be employed.
The method of the invention may also be used to provide coatings on papermachine clothing such as press felts. The coatings obtained would be tough, smooth and permeable.

Claims (16)

1. A method of making a coated fabric to be used in a phase separation process comprising the steps of impregnating a cloth with at least one coagulable polymer latex and coagulating the polymer on or in the cloth, wherein the method comprises carrying out the coagulation from a water phase so as to provide a cloth having a porous polymer coating thereon and/or therein.
2. A method as claimed in claim 1, wherein the water phase comprises steam.
3. A method as claimed in claim 1 or claim 2, wherein the polymer comprises polyurethane.
4. A method as claimed in claim 1 or claim 2, wherein the polymer comprises any of the following:- polyisoprene, polybutadiene, polyvinylidene dichloride, polyvinyl chloride, polychloroprene or styrene-butadiene polymers or mixtures thereof.
5. A method as claimed in any preceding claim, wherein the fabric comprises polypropylene.
6. A method as claimed in any preceding claim, wherein the coagulated polymer is foamed.
7. A method as claimed in any preceding claim, wherein the coagulated polymer is foamed by using a chemical foaming agent.
8. A method as claimed in claim 7, wherein the foaming agent comprises a low boiling water insoluble halogenated hydrocarbon.
9. A method as claimed in claim 8, wherein the foaming agent has a boiling point in the range from -40 C to 500C.
10. A method as claimed in claim 8 or claim 9, wherein the foaming agent has a boiling point in the range from -20 C to 300C.
11. A method as claimed in any of claims 7 to 10, wherein the foaming agent comprises 1,2-dibromo-1,1,2,2-tetrafluoroethane and trichlorofluoroethane.
12. A method as claimed in any preceding claim, wherein the polymer is coagulated by heating the polymer in the presence of a heat coagulant.
13. A method as claimed in claim 12, wherein the heat coagulant includes any of the following:- vinyl alkyl ether and derivatives thereof, polyacetals, polythio ethers, poly(ethylene oxide) and derivatives thereof, and poly(propylene/ethylene oxide) and derivatives thereof.
14. A method as claimed in any of claims 1 to 10, wherein the polymer is coagulated by adding an electrolyte to the polymer latex and/or varying the pH of the polymer latex.
15. A method as claimed in any preceding claim, wherein the thickness of the coating is in the range from 0.5 to 20mm.
16. A phase separation fabric for use in filtration or papermaking made by the method of any of claims 1 to 15.
GB9508577A 1994-04-27 1995-04-27 Coated fabric Withdrawn GB2288755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9408307A GB9408307D0 (en) 1994-04-27 1994-04-27 Coated fabric

Publications (2)

Publication Number Publication Date
GB9508577D0 GB9508577D0 (en) 1995-06-14
GB2288755A true GB2288755A (en) 1995-11-01

Family

ID=10754186

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9408307A Pending GB9408307D0 (en) 1994-04-27 1994-04-27 Coated fabric
GB9508577A Withdrawn GB2288755A (en) 1994-04-27 1995-04-27 Coated fabric

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9408307A Pending GB9408307D0 (en) 1994-04-27 1994-04-27 Coated fabric

Country Status (5)

Country Link
EP (1) EP0757730A1 (en)
AU (1) AU690673B2 (en)
CA (1) CA2188780A1 (en)
GB (2) GB9408307D0 (en)
WO (1) WO1995029285A2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819793A1 (en) * 1996-07-18 1998-01-21 FAD - Fabriano Autoadesivi S.p.A. Filtering medium in the form of a sheet of paper for filters for fluids in general
FR2752173A1 (en) * 1996-08-09 1998-02-13 Scapa Group Plc FILTRATION METHOD AND METHOD FOR MANUFACTURING FILTER USING THE SAME
WO1999041447A1 (en) * 1998-02-14 1999-08-19 Scapa Group Plc Porous belts or filter cloths
WO1999061130A1 (en) * 1998-05-23 1999-12-02 Scapa Group Plc Phase-separation member

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1386699A (en) * 1971-05-05 1975-03-12 Hoechst Ag Non-woven textile fabrics
GB1391666A (en) * 1971-06-28 1975-04-23 Roehm Gmbh Non-woven fabrics
US3936544A (en) * 1973-05-10 1976-02-03 Feldmuehle Aktiengesellschaft Process for the manufacture of flat-shaped articles
GB1436937A (en) * 1974-03-30 1976-05-26 Bayer Ag Pre-treatment of non-wovens
US4144209A (en) * 1973-02-01 1979-03-13 Johnson & Johnson Resin latex compositions
EP0167189A1 (en) * 1984-06-04 1986-01-08 Stahl Holland B.V. A process for the preparation of a coagulé

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619257A (en) * 1967-08-08 1971-11-09 Toyo Tire & Rubber Co Preparation of plural layer synthetic leather and the like
US3788882A (en) * 1970-02-18 1974-01-29 Richardson Co Synthetic composite and process for preparing
US4429000A (en) * 1979-12-11 1984-01-31 Toray Industries, Inc. Moisture-permeable waterproof coated fabric and method of making the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1386699A (en) * 1971-05-05 1975-03-12 Hoechst Ag Non-woven textile fabrics
GB1391666A (en) * 1971-06-28 1975-04-23 Roehm Gmbh Non-woven fabrics
US4144209A (en) * 1973-02-01 1979-03-13 Johnson & Johnson Resin latex compositions
US3936544A (en) * 1973-05-10 1976-02-03 Feldmuehle Aktiengesellschaft Process for the manufacture of flat-shaped articles
GB1436937A (en) * 1974-03-30 1976-05-26 Bayer Ag Pre-treatment of non-wovens
EP0167189A1 (en) * 1984-06-04 1986-01-08 Stahl Holland B.V. A process for the preparation of a coagulé

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819793A1 (en) * 1996-07-18 1998-01-21 FAD - Fabriano Autoadesivi S.p.A. Filtering medium in the form of a sheet of paper for filters for fluids in general
FR2752173A1 (en) * 1996-08-09 1998-02-13 Scapa Group Plc FILTRATION METHOD AND METHOD FOR MANUFACTURING FILTER USING THE SAME
WO1999041447A1 (en) * 1998-02-14 1999-08-19 Scapa Group Plc Porous belts or filter cloths
WO1999061130A1 (en) * 1998-05-23 1999-12-02 Scapa Group Plc Phase-separation member
AU742904B2 (en) * 1998-05-23 2002-01-17 Madison Filter 981 Limited Phase-separation member
US6648147B1 (en) 1998-05-23 2003-11-18 Madison Filter 981 Limited Phase-separation member

Also Published As

Publication number Publication date
AU2314895A (en) 1995-11-16
WO1995029285A2 (en) 1995-11-02
AU690673B2 (en) 1998-04-30
GB9508577D0 (en) 1995-06-14
GB9408307D0 (en) 1994-06-15
EP0757730A1 (en) 1997-02-12
WO1995029285A3 (en) 1995-12-07
CA2188780A1 (en) 1995-11-02

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