WO2002083493A1 - Revetement pour recipient de confinement de liquide souple et procede de fabrication du recipient - Google Patents

Revetement pour recipient de confinement de liquide souple et procede de fabrication du recipient Download PDF

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Publication number
WO2002083493A1
WO2002083493A1 PCT/US2002/010585 US0210585W WO02083493A1 WO 2002083493 A1 WO2002083493 A1 WO 2002083493A1 US 0210585 W US0210585 W US 0210585W WO 02083493 A1 WO02083493 A1 WO 02083493A1
Authority
WO
WIPO (PCT)
Prior art keywords
coating
vessel
fabric
tubular structure
cargo
Prior art date
Application number
PCT/US2002/010585
Other languages
English (en)
Inventor
Eric Romanski
Crayton Gregory Toney
Joseph G. O'connor
Maurice R. Paquin
Original Assignee
Albany International Corp.
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
Priority claimed from US09/832,739 external-priority patent/US6860218B2/en
Priority claimed from US09/923,936 external-priority patent/US7308862B2/en
Priority to EP02762000A priority Critical patent/EP1377499B1/fr
Priority to BR0208844-4A priority patent/BR0208844A/pt
Priority to DE60208911T priority patent/DE60208911T2/de
Priority to JP2002581265A priority patent/JP2004528218A/ja
Application filed by Albany International Corp. filed Critical Albany International Corp.
Priority to NZ528654A priority patent/NZ528654A/en
Priority to CA2442678A priority patent/CA2442678C/fr
Priority to KR10-2003-7013361A priority patent/KR20030088135A/ko
Priority to MXPA03009263A priority patent/MXPA03009263A/es
Publication of WO2002083493A1 publication Critical patent/WO2002083493A1/fr
Priority to NO20034568A priority patent/NO20034568D0/no

Links

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • D03D3/04—Endless fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/28—Barges or lighters
    • B63B35/285—Flexible barges, e.g. bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/78—Large containers for use in or under water
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D3/00—Woven fabrics characterised by their shape
    • D03D3/02—Tubular fabrics
    • 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
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • 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
    • D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
    • 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
    • D06N2209/00—Properties of the materials
    • D06N2209/12—Permeability or impermeability properties
    • D06N2209/126—Permeability to liquids, absorption
    • D06N2209/128—Non-permeable

Definitions

  • the present invention relates to a flexible ' fluid containment vessel (sometimes hereinafter referred to as "FFCV") for transporting and containing a large volume of fluid, particularly fluid having a density less than that of salt water, more particularly, fresh water, and a method of making the same.
  • FFCV flexible ' fluid containment vessel
  • the cargo is fluid or a fluidized solid that has a density less than salt water
  • rigid bulk barges, tankers or containment vessels there is no need to use rigid bulk barges, tankers or containment vessels.
  • flexible containment vessels may be used and towed or pushed from one location to another.
  • Such flexible vessels have obvious advantages over rigid vessels.
  • flexible vessels if constructed appropriately, allow themselves to be rolled up or folded after the cargo has been removed and stored for a return trip.
  • Fresh water is such a commodity that harvesting of the ice cap and icebergs is rapidly emerging as a large business. However, wherever the fresh water is obtained, economical transportation thereof to the intended destination is a concern.
  • the density of salt water as compared to the density of the liquid or fluidisable solids reflects the fact that the cargo provides buoyancy for the flexible transport bag when a partially or completely filled bag is placed and towed in salt water. This buoyancy of the cargo provides flotation for the container and facilitates the shipment of the cargo from one seaport to another.
  • U.S. Patent 2,997,973 there is disclosed a vessel comprising a closed tube of flexible material, such as a natural or synthetic rubber impregnated fabric, which has a streamlined nose adapted to be connected to towing means, and one or more pipes communicating with the interior of the vessel such as to permit filling and emptying of the vessel.
  • the buoyancy is supplied by the liquid contents of the vessel and its shape depends on the degree to which it is filled.
  • This patent goes on to suggest that the flexible transport bag can be made from a single fabric woven as a tube. It does not teach, however, how this would be accomplished with a tube of such magnitude. Apparently, such a structure would deal with the problem of seams .
  • Seams are commonly found in commercial flexible transport bags, since the bags are typically made in a patch work manner with stitching or other means of connecting the "patches of water proof material together. See e.g. U.S. Patent 3,779,196. Seams are, however, known to be a source of bag failure when the bag is repeatedly subjected to high loads. Seam failure can obviously be avoided in a seamless structure. However, a seamed structure is an alternative to a simple woven fabric as it would have different advantages thereto, particularly in the fabrication thereof.
  • the length of fabric will be determined by the length of each spiral turn of the fabric strip of yarn material and its width determined by the number of spiral turns.
  • An edge joint can be achieved, e.g. by sewing, melting, and welding (for instance, ultrasonic welding as set forth in U.S. Patent No. 5,713,399 entitled “Ultrasonic Seaming of Abutting Strips for Paper Machine Clothing” which issued February 3 , 1998 and is commonly assigned, the disclosure of which is incorporated herein by reference) of non- woven material or of non-woven material with melting fibers .
  • While that patent relates to creating a base fabric for a press felt such technology may have application in creating a sufficiently strong tubular structure for a transport container.
  • FFCV fabric FFCV
  • cargo including, particularly, fresh water, having a density less than that of salt water and being so formed so as to be impervious to salt water and salt water ions.
  • FFCV which has means of rendering the FFCV buoyant, particularly when empty without the need for buoyancy devices .
  • the present invention envisions the use of a woven or spirally formed tube to create the FFCV, having a length of 300' or more and a diameter of 40' or more. Such a large structure can be fabricated on machines that make papermaker's clothing.
  • the ends of the tube may be sealed by a number of means, including being pleated, folded or otherwise reduced in diameter and bonded, stitched, stapled or maintained by a mechanical coupling or other means set forth in the aforesaid applications.
  • the rendering of such a large vessel impervious to salt water and salt water ions, especially one formed seamless has its difficulties.
  • means to accomplish this are disclosed.
  • the present invention expands upon this and allows for different coatings to be incorporated into the FFCV.
  • the present invention discloses coating methods which serve not only to render the fabric of the FFCV impervious but also buoyant with or without cargo (i.e. fresh water) .
  • the first aspect of the invention provides for a fabric making up the FFCV having a coated face or outside and back or inside with a thermoplastic material which may be different.
  • the advantage of having different coatings on the inside and outside can be for a multitude of reasons .
  • the coating selected may be influenced by this.
  • the coating selection may be influenced by this.
  • Other considerations may come into play as to the advantage of different coatings on the FFCV which will be apparent to a skilled worker in the art .
  • Such a coating arrangement may be implemented by applying coating to the fiber or yarn that makes up the fabric prior to the weaving thereof.
  • the face fibers may be coated with one type of thermoplastic compound with the back fibers coated with a different thermoplastic compound.
  • the weaving process selectively interlaces all fibers with one type coating on one side and with the other coating on the other side.
  • the structure is then heat treated under pressure to enable the thermoplastic coating to liquify and render the fabric impermeable.
  • the different coatings predominantly stay on the sides of the fibers where they originated from.
  • the present invention envisions providing a coating that not only renders the fabric impermeable, but also allows the FFCV to float due the buoyant nature of the coating.
  • a first way is to spray coat the fabric with the desired coating.
  • the desired result is to create an FFCV which includes the fabric and coating which has an overall density of less than that of salt water which is approximately 1.0 g/cm 3 . Accordingly, decreasing the overall density can be effected in the following ways.
  • microspheres which may be glass, polymers, or other material suitable for purpose
  • microspheres are added such that the density of the coating is reduced to less than 1.0 g/cm 3 .
  • the amount the density is reduced will also be dictated by the density of the woven fibers and the desired physical properties of the coating. For example, if the fibers used will themselves float uncoated, then the coating density need only be reduced sufficiently that it will float. In such an instance, the composite structure or coated fabric will naturally float.
  • the density of the coating could be adjusted to compensate for the added density of the fibers such that the overall density of the composite structure is less than 1.0 g/cm 3 .
  • the desired mechanical characteristics of the coating should not be compromised beyond that required for an effective FFCV.
  • sufficient tensile strength, flexibility and abrasion resistance of the coating should be maintained to the degree necessary, as will be apparent to one skilled in the art.
  • air entrained in the spraying of the coating onto the fabric results in air bubbles within the coated fabric.
  • air bubbles lower the density of the coating which, if to a sufficient degree, allows the coated fabric to be buoyant .
  • the air bubbles were found to be both random in size and location and varied due to spraying conditions. The randomness of such voids may serve to minimize, to a certain degree, the effect that they may have on the mechanical characteristics as aforediscussed.
  • Figure 1 is a somewhat general perspective view of an FFCV which is cylindrical having a pointed bow or nose;
  • Figure 2 is a side sectional view of a fabric incorporating the teachings of the present invention;
  • Figures 2A and 2B illustrate the stitching points of the front and back weave of the fabric shown in Figure 2 incorporating the teachings of the present invention
  • Figure 3 is a side sectional view of a coated fabric incorporating microspheres in its coating, incorporating the teachings of the present invention
  • Figure 3A is a graph illustration of a stress strain curve for resin without microsphere and with two different microspheres.
  • Figure 4 is a side sectional view of a coated fabric having an air entrained coating, incorporating the teachings of the present invention
  • Figure 4A is an enlargement of a portion of the coating shown in Figure 4 incorporating the teachings of the present invention
  • Figure 5 is a perspective view of a device for applying heat and pressure to a tube which is to be used in an FFCV incorporating the teachings of the present invention.
  • Figure 6 is a perspective view of the device shown in Figure 5 in conjunction with the tube incorporating the teachings of the present invention.
  • the proposed FFCV 10 is intended to be constructed of a seamless woven impermeable textile tube 12.
  • the tube's configuration may vary. For example, it would comprise a tube having a substantially uniform diameter (perimeter) and sealed on each end as shown in Figure 1. It can also have a non-uniform diameter or non-uniform shape. The respective ends may be closed, pinched, and sealed in any number of ways.
  • the resulting coated structure will also be flexible enough to be folded or wound up for transportation and storage.
  • the present invention envisions the fabrication of very large FFCVs which are constructed from coated textiles. Coated textiles have two primary components. These components are the fiber reinforcement and the polymeric coating. A variety of fiber reinforcements and polymeric coating materials are suitable for FFCVs.
  • Such materials must be capable of handling the mechanical loads and various types of extensions which will be experienced by the FFCV.
  • Such materials, particularly the coating used should also be abrasion resistant, since it will probably come in contact with objects during towing. Also, since it is envisioned that the FFCV be collapsed and wound onto a reel, it will come into contact with surfaces of the towing vessel when it is wound and unwound, so the material selected should be resistant to abrasion as a result of such contact.
  • the materials used should be selected with the cargo being transported being taken into consideration. For example, if the cargo is potable water, the materials used, particularly the coating on the inside of the FFCV, should be acceptable for use with potable water.
  • the coating used may even be the subject of approval by a governmental agency such as the FDA, if the potable water is to be used within its jurisdiction, or if not, a government agency of a foreign country where such water is to be used. Accordingly, a coating which might leach harmful chemicals or otherwise contaminate the cargo should not be used on the inside of the FFCV. Leaching should also be avoided if, for example, a germicide, fungicide or UN stabilizer is incorporated into the coating. A loss of it by leaching might compromise the desired result being sought. Other considerations as to the coating selected will be readily apparent to the skilled artisan depending upon the nature of the cargo being transported and the end result desired.
  • Suitable polymeric coating materials include polyvinyl chloride, polyurethanes, synthetic and natural rubbers, polyureas, polyolefins, silicone polymers and acrylic polymers. These polymers can be thermoplastic or thermoset in nature. Thermoset polymeric coatings may be cured via heat, room temperature curable or UN curable. The polymeric coatings may include plasticizers and stabilizers that either add flexibility or durability to the coating.
  • the preferred coating materials are plasticized polyvinyl chloride, polyurethanes and polyureas. These materials have good barrier properties and are both flexible and durable.
  • Suitable fiber reinforcement materials are nylons (as a general class) , polyesters (as a general class) , polyaramids (such as Kevlar®, Twaron® or Technora®) , polyolefins (such as Dyneema®, and Spectra® which are made of ultra high molecular weight polyethylene) and polybenzoxazole (PBO) .
  • high strength fibers minimize the weight of the fabric required to meet the design requirement for the FFCV.
  • the preferred fiber reinforcement materials are high strength nylons, high strength polyaramids and high strength polyolefins.
  • PBO is desirable for its high strength, but undesirable due to its relative high cost.
  • High strength polyolefins are desirable for their high strength, but difficult to bond effectively with coating materials .
  • the appropriate fiber and weave may be selected along with the coating to be used.
  • one of the methods for coating the tube employs a thermoplastic composite approach.
  • the tube is woven from a mixture of at least two fibrous materials.
  • One material would be the reinforcing fiber and the second material would be a low melting fiber or low melting component of a reinforcing fiber.
  • the low melting fiber or component might be a thermoplastic polyurethane or polyethylene.
  • the reinforcing fiber might be polyester or nylon tire cord or one of the other fibers hereinbefore discussed.
  • the tube would be subjected to heat and pressure in a controlled fashion. This heat and pressure would cause the low melting fiber or component to melt and fill the void in the woven structure .
  • the present invention is directed to a variation thereof so as to provide for a fabric having two different coatings on opposite sides of the fabric.
  • the method involves applying a coating to the fibers or yarns that make up the fabric 20 prior to the weaving operation.
  • the face fibers 22 are coated with one type of thermoplastic compound and said back fibers 24 are coated with a different thermoplastic compound as shown in Figure 2.
  • the weaving process selectively interlaces all the fibers with one type of coating on the face side 26 and all the fibers of another coating on the backside 30.
  • the two layers are bound together by a weaving technique called stitching points. This stitching point technique is illustrated when viewing Figure 2 in combination with Figures 2A and 2B.
  • fibers 22 and 24, which have the thermoplastic coating have the great majority of their length on surfaces 26 and 30 respectively. This is due to the use of stitching points 32 in the weave. While the weave shown is generally referred to as an 8 harness, satin double cloth with stitching points, any weave suitable for the purpose can be used.
  • the core fibers, prior to coating with the thermoplastic material can be made of polyamide, polyester, aramid, polyolefin, rayon, fiberglass or any yarn system compatible with fiber coating systems . The coating of this core fiber is done in a fashion known to those skilled in the art. There are many denier sizes that could be used ranging from 210 denier all the way to 10,000 denier depending on the thickness of the fabric desired and the strength requirement that must be achieved.
  • the thermoplastic coating can be .a urethane, polyester, polyamide, polyvinyl chloride, polyolefin, or the like.
  • the melting temperature of the coating material must be substantially lower than the melting temperature of the core fiber so there is no damage to the core fiber during coating application or post heat treating.
  • One very common coated fiber is that of polyvinyl chloride (PVC) over polyamide multifilament .
  • PVC polyvinyl chloride
  • Another common coated fiber is thermoplastic urethane coated over polyamide multifilament.
  • This fiber is traditionally used in the manufacture of outdoor furniture .
  • Both of these fibers can be woven on the large papermaker clothing looms to produce a structure that is a double cloth weave with stitching points in an endless form. The resulting structure is tubular and contains no seams but is still permeable to water and air. To render the woven fabric impermeable to air and water it must be treated with heat and moderate pressure to make the coatings flow on the individual fibers.
  • Each coating system will flow on the respective side of the fabric and create a homogeneous barrier to air and water.
  • the coatings on the fibers 22 and 24 are liquified by being subject to heat and pressure.
  • One way to do this is set forth in the second aforesaid patent application and involves a device 71 shown in Figures 5 and 6 which can apply heat and pressure to the tube 12.
  • the device 71 can be self- propelled or can be moved by external pulling cables.
  • Each section 73 and 74 of the device includes heating or hot plates with respective magnets 76 and motors (not shown) and are positioned on either side of the fabric as shown in Figure 6.
  • a power supply (not shown) is provided to energize the heating plates 76 and supply power to the motors that propel the device across the tube 12.
  • the magnets serve to pull the two hot plates 76 together which creates pressure to the fabric as the coating on the yarn liquefies from the heat. These magnets also keep the top heating plate 76 opposite to the inside heating plate 76.
  • the device 71 includes endless non-stick belts 78 that ride on rollers 80 located at the plate ends. The belts 78 ride over the plates 76. In this way there is no movement of the belt 78 in relation to the fabric surface when it is in contact with the fabric. This eliminates smearing of the melted coating and uniform distribution between the yarns.
  • the device moves across the length of the tube 12 at a speed that enables the melted coat to set prior to the fabric folding back upon itself and sticking. If faster speeds are desired, a means for temporarily keeping the inside surfaces apart while setting takes place, may be implemented. This may be, for example, a trailing member on the inside of the tube of similar design to that described but being only one section without, of course, a heating plate or magnet. Other means suitable for this purpose will be readily apparent to those skilled in the art.
  • one of the coatings may include a germicide or a fungicide so as to prevent the occurrence of bacteria or mold or other contaminants .
  • the FFCV may include as part of its outside coating a UV protecting or stabilizing ingredient in this regard.
  • an FFCV constructed from materials such as, for example, nylon, polyester and rubber would have a density greater than salt water.
  • the empty FFCV or empty portions of the large FFCV would sink. This sinking action could result in high stresses on the FFCV and could lead to significant difficulties in handling the FFCV during filling and emptying of the FFCV.
  • the use of a coating, which provides buoyancy, provides an alternative to mechanical buoyancy devices.
  • the FFCV float when empty of cargo. This may be accomplished by any number of means including those set forth in the patent applications noted earlier. Including therein is to coat the FFCV with a foam. By using a foam coating, one could lower the overall density of the coated fabric to below 1.0 g/cm 3 , since the yarns or fibers used such as polyester and coating resins, such as polyvinyl chloride have densities greater than 1.0 g/cm 3 .
  • Foamed coatings usually involve generating a large amount of gas chemically in the coating or by purposely beating air into the coating by a mechanical device. Applying foam has its advantages and may be desirable under certain circumstances.
  • foam also has some drawbacks, since it is difficult to control penetration, uniformity and thickness. Also, foam has less abrasion resistance and mechanical strength to that of a non-foamed resin coating.
  • a proposed alternative, in addition to foaming, is to incorporate microspheres into the coating.
  • microspheres There are generally two types of microspheres - glass and polymeric. The bulk densities are as low as .01 g/cm 3 with mean particle size ranges of about 100 microns.
  • Such microspheres are manufactured by 3M and PQ Corp. PQ Corp. sells plastic microsphere filler under the designation PM 6545 and PM 6550.
  • PM 6545 and PM 6550 are produced from a copolymer consisting of polyacrylonitrile and polymethacrylonitrile.
  • the plastic spheres products are resistant to solvents and resins. The following is a table of their characteristics.
  • PQ Corp. also supplied a hollow, glass microsphere, Q-Cel 6019S. This material is easier to work with but is somewhat denser at 0.19 g/cm 3 .
  • the densities of the coating were reduced to 0.95 g/cm 3 .
  • the desired overall density for the finished product and the necessary loading will vary depending upon the resin and the fabric. Also, while the physical properties of the coating are lower, it should not be so low so as to effect the integrity of an FFCV.
  • the polyurethane coating To float in water, the polyurethane coating must have a density of less than 1.0 g/cm 3 . A density 0.95 g/cm 3 would be effective. Note that the density of the fabric should also be taken into account. In practice, the urethane will need to be low enough in density to float both it and the fabric to which it has been applied.
  • microspheres were mixed into the Adiprene prepolymer without much difficulty.
  • the PM 6550 microspheres were more difficult to work with due to their low density. Samples of each resin mix were cast into molds, allowed to cure, trimmed to size, and then tested for tensile strength.
  • microspheres it will decrease the density of a resin to the point of buoyancy in seawater. Resin properties will be affected but should be adequate for the requirements of the particular application. It should be noted that spray application of polyurethanes and in particular, polyureas is typically done at high pressure, i.e. in excess of lOOOpsi. The microspheres selected should be capable of handling such pressures.
  • Figure 3 shows a coated fabric 40.
  • a base substrate 42 which may be woven, knit or braided from a desired yarn or fiber.
  • the fabric 40 is coated on both sides 44 and 46 with the desired resin.
  • Incorporated into the resin prior to its being applied (via spraying, etc.) are the microspheres 48 as aforedescribed.
  • the microspheres 48 are randomly disbursed in the coating and create sufficient voids such that the overall density of the fabric 40 is less than 1 g/cm 3 . Accordingly, an FFCV made with such a fabric will float in salt water with or without a cargo of fresh water.
  • the present invention is just the reverse of this.
  • air is allowed to become entrapped within the coating 52.
  • air bubbles 54 of random size and placement are entrapped in the coating 52.
  • the amount of entrapped air necessary will vary depending upon the density of the fibers and the resin used. The goal is, however, to have the overall density of the coated fabric to be less than 1 g/cm 3 .
  • a fabric was woven from ultra-high molecular weight polyethylene (UHMWPE) fiber (tradenames for these are Spectra ® or Dyneema ® ) and then coated with a spray-applied, 2 component polyurethane system containing no fibers, simply a pure polyurethane coating.
  • UHMWPE ultra-high molecular weight polyethylene
  • Coating add-on is at least 1:1 and more typically, 2 and even 3:1 coating to fabric ratio.
  • the filled coatings having entrained air or microspheres on top of or beneath an unfilled coating.
  • the filled coatings could also be sandwiched between the unfilled coatings or any variations along these lines, such as coating the interior of the tube with filled coating and the exterior of the tube with unfilled coating. The variations are endless.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Transportation (AREA)
  • Laminated Bodies (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
  • Paints Or Removers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Bag Frames (AREA)

Abstract

L'invention concerne un récipient de confinement de liquide souple fabriqué dans une toile pour transporter et contenir un grand volume de liquide, en particulier de l'eau. La toile est réalisée avec des fils ou fibres thermoplastiques enduits, de sorte que les côtés de la toile présentent chacun un revêtement différent; ou bien la toile est revêtue de façon à laisser des vides, de sorte que la densité globale de la toile revêtue soit inférieure à 1 g/cm3, ce qui lui permet de flotter.
PCT/US2002/010585 2001-04-11 2002-04-05 Revetement pour recipient de confinement de liquide souple et procede de fabrication du recipient WO2002083493A1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
MXPA03009263A MXPA03009263A (es) 2001-04-11 2002-04-05 RECUBRIMIENTO PARA UNA EMBARCACIoN FLEXIBLE PARA LA CONTENCIoN DE FLUIDO Y EL METODO PARA FABRICAR LA MISMA.
KR10-2003-7013361A KR20030088135A (ko) 2001-04-11 2002-04-05 유체 보관용 연질 용기에 사용하기 위한 코팅 및 이의제조 방법
BR0208844-4A BR0208844A (pt) 2001-04-11 2002-04-05 Revestimento para um vaso de contenção de fluido flexìvel e um método de fabricação do mesmo
DE60208911T DE60208911T2 (de) 2001-04-11 2002-04-05 Bekleidung für einen flexiblen Flüssigkeitsbehälter und Verfahren zu dessen Herstellung
JP2002581265A JP2004528218A (ja) 2001-04-11 2002-04-05 柔軟な流体封入容器のコーティング及び同じくその製造方法
EP02762000A EP1377499B1 (fr) 2001-04-11 2002-04-05 Revetement pour recipient de confinement de liquide souple et procede de fabrication du recipient
NZ528654A NZ528654A (en) 2001-04-11 2002-04-05 Coating for a flexible fluid containment vessel and a method of making the same
CA2442678A CA2442678C (fr) 2001-04-11 2002-04-05 Revetement pour recipient de confinement de liquide souple et procede de fabrication du recipient
NO20034568A NO20034568D0 (no) 2001-04-11 2003-10-10 Belegg for en fleksibel fluidbeholder og fremgangsmåte for dets fremstilling

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US09/832,739 US6860218B2 (en) 2001-04-11 2001-04-11 Flexible fluid containment vessel
US09/832,739 2001-04-11
US09/908,877 2001-07-18
US09/908,877 US6675734B2 (en) 2001-04-11 2001-07-18 Spiral formed flexible fluid containment vessel
US09/923,936 US7308862B2 (en) 2001-04-11 2001-08-07 Coating for a flexible fluid containment vessel and a method of making the same
US09/923,936 2001-08-07

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WO2002083493A1 true WO2002083493A1 (fr) 2002-10-24

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JP (1) JP2004528218A (fr)
CN (1) CN1266000C (fr)
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BR (1) BR0208844A (fr)
CA (1) CA2442678C (fr)
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EP1587731A2 (fr) * 2003-01-21 2005-10-26 Albany International Corp. Recipient flexible de retention de fluide caracterise par une soudure du type quille
US7921735B2 (en) 2004-12-21 2011-04-12 Endress + Hauser Flowtec Ag In-line measuring device with measuring tube
WO2013040312A1 (fr) * 2011-09-16 2013-03-21 Titanliner, Inc. Systèmes de confinement portatifs pour matières dangereuses ou autres
US9126745B2 (en) 2011-09-16 2015-09-08 Titanliner, Inc. Portable containment system for hazardous or other materials
US10843868B1 (en) 2019-08-28 2020-11-24 Titanliner, Inc. Containment system for hazardous or other materials

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Publication number Priority date Publication date Assignee Title
DE102014015376A1 (de) 2014-10-17 2016-04-21 Universität Stuttgart Verfahren zur Abdichtung von Kammern in Flächengebilden und damit erhältliches Produkt
CN108570737A (zh) * 2017-03-10 2018-09-25 山华企业股份有限公司 高分子缝线结构及其使用方法

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GB824984A (en) * 1957-03-13 1959-12-09 Dracone Developments Ltd Improvements in or relating to flexible barges
US3001501A (en) 1958-04-21 1961-09-26 Dracone Dev Ltd Flexible barges
US3167103A (en) 1959-01-19 1965-01-26 Dracone Developments Ltd Flexible containers
US3056373A (en) 1959-02-23 1962-10-02 Dracone Dev Ltd Flexible barges
US2998973A (en) 1959-07-06 1961-09-05 Schaper Mfg Co Inc Game apparatus
GB933889A (en) * 1961-05-16 1963-08-14 F P T Ind Ltd Improvements in or relating to floating containers
US3779196A (en) 1972-07-24 1973-12-18 Goodyear Tire & Rubber Towable floating storage container
US4016326A (en) * 1974-04-12 1977-04-05 Helmut Schaefer Layer composition
US4226906A (en) * 1978-08-14 1980-10-07 John Brian Haworth Microporous coated fabrics from clustered microspheres
US4983433A (en) * 1988-12-26 1991-01-08 Toyo Boseki Kabushiki Kaisha Fiber reinforced plastic and its reinforcement
US5360656A (en) 1990-12-17 1994-11-01 Albany International Corp. Press felt and method of manufacturing it
US5512356A (en) * 1992-11-16 1996-04-30 Phoenix Aktiengesellschaft Multilayered textile web for forming flexible containers, tents, awnings, and protective suits comprising a rubber/polyvinylidene fluoride film/rubber layer
US5395682A (en) * 1993-07-20 1995-03-07 Holland; John E. Cargo curtain
US5766391A (en) * 1995-04-19 1998-06-16 American Weavers, L.L.C. Method for making woven polypropylene fabric with frayed edges
US5713399A (en) 1997-02-07 1998-02-03 Albany International Corp. Ultrasonic seaming of abutting strips for paper machine clothing

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1587731A2 (fr) * 2003-01-21 2005-10-26 Albany International Corp. Recipient flexible de retention de fluide caracterise par une soudure du type quille
EP1587731A4 (fr) * 2003-01-21 2011-01-19 Albany Int Corp Recipient flexible de retention de fluide caracterise par une soudure du type quille
US7921735B2 (en) 2004-12-21 2011-04-12 Endress + Hauser Flowtec Ag In-line measuring device with measuring tube
WO2013040312A1 (fr) * 2011-09-16 2013-03-21 Titanliner, Inc. Systèmes de confinement portatifs pour matières dangereuses ou autres
US8998013B2 (en) 2011-09-16 2015-04-07 Titanliner, Inc. Portable containment systems for hazardous or other materials
US9126745B2 (en) 2011-09-16 2015-09-08 Titanliner, Inc. Portable containment system for hazardous or other materials
US9221598B2 (en) 2011-09-16 2015-12-29 Titanliner, Inc. Portable containment system for hazardous or other materials
US10131494B2 (en) 2011-09-16 2018-11-20 Titanliner, Inc. Portable containment system for hazardous or other materials
US10549907B2 (en) 2011-09-16 2020-02-04 Titanliner, Inc. Portable containment system for hazardous or other materials
US10843868B1 (en) 2019-08-28 2020-11-24 Titanliner, Inc. Containment system for hazardous or other materials
US11383924B2 (en) 2019-08-28 2022-07-12 Titanliner, Inc. Containment system for hazardous or other materials

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Publication number Publication date
TWI225460B (en) 2004-12-21
EP1377499A1 (fr) 2004-01-07
ATE316490T1 (de) 2006-02-15
EP1377499B1 (fr) 2006-01-25
NO20034568L (no) 2003-10-10
CN1501877A (zh) 2004-06-02
NO20034568D0 (no) 2003-10-10
MXPA03009263A (es) 2004-02-12
DK1377499T3 (da) 2006-06-06
ES2254719T3 (es) 2006-06-16
NZ528654A (en) 2005-04-29
JP2004528218A (ja) 2004-09-16
DE60208911D1 (de) 2006-04-13
BR0208844A (pt) 2004-03-09
CA2442678A1 (fr) 2002-10-24
CN1266000C (zh) 2006-07-26
CA2442678C (fr) 2010-06-01
DE60208911T2 (de) 2006-07-20

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