US20040240944A1 - Hull coverings - Google Patents

Hull coverings Download PDF

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Publication number
US20040240944A1
US20040240944A1 US10/486,743 US48674304A US2004240944A1 US 20040240944 A1 US20040240944 A1 US 20040240944A1 US 48674304 A US48674304 A US 48674304A US 2004240944 A1 US2004240944 A1 US 2004240944A1
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US
United States
Prior art keywords
shapes
carrier film
article
product according
product
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.)
Abandoned
Application number
US10/486,743
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English (en)
Inventor
James Kelly
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.)
Ecosea Ltd
Original Assignee
Ecosea 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 Ecosea Ltd filed Critical Ecosea Ltd
Assigned to ECOSEA LIMITED reassignment ECOSEA LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KELLY, JAMES WILLIAM
Publication of US20040240944A1 publication Critical patent/US20040240944A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/06—Interconnection of layers permitting easy separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/18—Handling of layers or the laminate
    • B32B38/1866—Handling of layers or the laminate conforming the layers or laminate to a convex or concave profile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B59/00—Hull protection specially adapted for vessels; Cleaning devices specially adapted for vessels
    • B63B59/04—Preventing hull fouling
    • B63B59/045—Preventing hull fouling by wrapping the submerged hull or part of the hull with an impermeable sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/12—Copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/046—LDPE, i.e. low density polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/12—Ships

Definitions

  • the present invention relates to a treatment for areas of articles residing underwater, particularly the hulls of ships, to provide protection from aquatic growths and borers.
  • the present invention therefore provides a product for the treatment of an area of an article residing underwater comprising a plurality of shapes formed from copper or a copper nickel alloy and a carrier film and adapted in use to be secured to the area of the article residing underwater such that the shapes contact or substantially contact each other.
  • the copper or copper nickel alloy shapes protect wooden articles from rot and borers, protect steel from rusting, aid osmosis protection in glass reinforced polyester articles and provide a highly durable oxidised surface that inhibits aquatic growth.
  • the shapes are made from a copper nickel alloy.
  • the copper nickel alloy oxide does not leach into the sea like cuprous oxide causing damage to the environment but is generally only removed by erosion, which can occur if the article is moving at high speeds.
  • the copper nickel alloy oxide remains effective on the surface of the alloy for a considerable time and the alloy itself therefore wears away very slowly leading to a treatment having a long lifetime, in excess of six years.
  • the copper nickel alloy is preferably Cupronickel 90/10.
  • the copper nickel alloy is the effective ingredient of the product and Cupronickel 90/10 is most effective in the prevention of aquatic growth without adverse effects on the environment.
  • Other copper nickel alloys, such as Cupronickel 70/30, can be useful if increased durability, or other properties, are required, for example for articles moving quickly through the water where erosion of Cupronickel 90/10 occurs at an unacceptable level.
  • the shapes are preferably interfacing shapes.
  • the interfacing shapes are preferably adapted in use to be secured to the area of the article residing underwater such that the shapes substantially interface.
  • the interfacing shapes preferably have a thickness of 150 microns to 500 microns, most preferably 150 microns.
  • the thickness of the interfacing shapes allows moulding around the shape of the article to which the interfacing shapes are being secured.
  • the largest diameter of the shapes is preferably from 4 mm to 30 mm depending on the end application.
  • the gaps are preferably less than 0.4 mm wide.
  • the gap size is a compromise between a desired small size that limits the attachment area for aquatic growth and entry area for borers and the limitations of the processes for creating the gaps between the shapes.
  • the gaps between the interfacing shapes are advantageous as they allow the interfacing shapes to be readily fitted to the shape of the area of the article being covered. Foil material used previously had to be pressed and rolled to the shape of the area of the article to be covered.
  • the interfacing shapes preferably have three or more sides.
  • the most preferable interfacing shapes are hexagons and squares. Sharp corners are not desirable as they may interrupt the laminar flow of water creating drag and will be susceptible to damage; hexagons and squares are therefore ideal in shape.
  • the shapes may be particulate, for example substantially spherical.
  • the particles are preferably adapted in use to be secured to the area of the article residing underwater such that each of the particles contacts or substantially contacts adjacent particles.
  • the particles preferably have a diameter of less than 150 microns, more preferably less than 100 microns and most preferably less than 50 microns.
  • the shapes are releasably secured to the carrier film.
  • the shapes are preferably releasably secured to the carrier film by an appropriate adhesive.
  • the carrier film is preferably a plastics material capable of adopting concave and convex profiles without creasing.
  • the interfacing shapes are preferably secured to the carrier film to give rise to a regular pattern of shapes each preferably surrounded by small regular gaps forming a border.
  • the border is preferably no less than 0.150 mm and no greater than 0.4 mm wide.
  • the gaps between the interfacing shapes allow the carrier material bearing the interfacing shapes to be manipulated to fit the area of the article being covered.
  • the particles are preferably releasably secured to the carrier film to give an even coverage of particles on the film.
  • the product may be provided in sheet or in strip form.
  • the carrier film holds the shapes together during manufacture and installation and provides protection for the installed product until it is ready for use.
  • the carrier film is preferably standard low density polyethylene most preferably at 60 microns.
  • the adhesive releasably securing the shapes to the carrier film is preferably an acrylic adhesive.
  • the shapes are permanently secured to one surface of the carrier film.
  • the shapes are preferably permanently secured to the surface of the carrier film by an appropriate adhesive, preferably a solvent modified acrylic adhesive.
  • the carrier film is preferably a plastics material, more preferably a waterproof plastics material, capable of adopting concave and convex profiles without creasing. Most preferably, the carrier film is a waterproof polyester membrane.
  • the carrier film may be acrylic foam adhesive.
  • the shapes adhere permanently to the acrylic foam adhesive by the nature of the acrylic foam adhesive.
  • Acrylic foam adhesive is particularly useful in deep-sea applications.
  • the interfacing shapes are preferably secured to the carrier film to give rise to a regular pattern of shapes each preferably surrounded by small regular gaps forming a border.
  • the border is preferably no less than 0.150 mm and no greater than 0.4 mm wide.
  • the gaps between the interfacing shapes allow the carrier material bearing the interfacing shapes to be manipulated to fit the area of the article being covered.
  • the particles are preferably secured to the carrier film to give an even coverage of particles on the film.
  • the product may be provided in sheet or in strip form.
  • the carrier material is most preferably provided with an adhesive on the surface not bearing the interfacing shapes.
  • the adhesive is preferably a solvent modified acrylic adhesive.
  • the surface bearing the adhesive is preferably covered by a removable backing strip, which protects the adhesive until it is ready for use.
  • a protective film may be releasably secured, preferably by an appropriate adhesive, to the surface of the product bearing the shapes to protect the shapes during manufacture and installation.
  • the protective film is preferably standard low density polyethylene most preferably at 60 microns.
  • the adhesive releasably securing the protective film to the shapes is preferably acrylic adhesive.
  • the carrier film bearing interfacing shapes is preferably made from an appropriate carrier film material having a continuous film of copper or a copper nickel alloy secured thereto by a suitable adhesive, depending on whether the shapes are secured releasably or permanently to the carrier film.
  • the interfacing shape pattern is preferably created by chemically etching the un-required copper nickel material with a Hydrochloric Acid based etching solution, (etchant), most preferably using either an acid resistant ink mask or dry film photo-resist.
  • etchant Hydrochloric Acid based etching solution
  • the acid resistant ink mask or dry film photo-resist has the desired pattern developed into it, and is employed to cover the copper or copper nickel alloy to remain secured to the carrier film whilst the Hydrochloric Acid based chemically dissolves the unprotected metallic materials.
  • the interfacing shape pattern may be created by acid etching, most preferably using an epoxy acid resist to cover the copper or copper nickel alloy to remain secured to the carrier film and an acid to remove the unwanted material.
  • the product comprising a carrier material bearing particles of copper or copper nickel alloy is preferably made by applying the particles to a surface of the carrier film coated with appropriate adhesive, depending on whether the particles are releasably or permanently secured to the film. Excess non-adhered particles are preferably removed from the carrier film by vibration of the film. The particles are most preferably applied to the carrier film as it is unrolled from a first roller and re-rolled onto a second roller.
  • the carrier material is extremely flexible and the product can therefore readily be used to treat areas of the article having sharp edges or tight contours.
  • Also provided by the present invention is a method of treating an area of an article residing underwater comprising applying a plurality of shapes formed from copper or a copper nickel alloy secured to a carrier film to the area of the article residing underwater such that the shapes contact or substantially contact each other.
  • the shapes are applied to the area of the article in sheet form, releasably secured to a carrier film, most preferably by an adhesive.
  • a carrier film most preferably by an adhesive.
  • the sheets of shapes may be applied directly to the area of the article to be covered.
  • the area of the article to be covered is coated with a suitable adhesive system, for example an epoxy primer followed by an epoxy adhesive using a brush, roller or spraying means.
  • the epoxy adhesive is preferably based on a bisphenol A epoxy resin reacted with an adducted polyamine to give a flexible cure.
  • the adhesive system provides additional protection against rot, rust, borers and osmosis in addition to securing the shapes to the area of the article to be covered.
  • the sheets of shapes are preferably pressed into the adhesive system with the shapes contacting the adhesive system.
  • a roller may be used to apply pressure to the sheets to ensure adhesion.
  • the carrier film may be peeled off leaving the area of the article covered with a plurality of shapes that contact or substantially contact each other.
  • the shapes may alternatively be applied to areas of articles being made by moulding.
  • the sheets of shapes are positioned within the mould with the shapes facing into the mould.
  • the sheets of shapes may be held in position by an adhesive, preferably a heat or pressure activated adhesive.
  • an adhesive preferably a heat or pressure activated adhesive.
  • the use of a heat or pressure activated adhesive allows any necessary repositioning of the sheets before the adhesive is activated.
  • the shapes facing into the mould are preferably coated with a suitable adhesive system before the moulding process takes place for example using a brush, a roller or a spray means.
  • a suitable adhesive system for example using a brush, a roller or a spray means.
  • the area of the article may be treated with the product comprising the carrier film bearing the interfacing shapes or with the product comprising the carrier film bearing the particles or a combination of both types of product.
  • the product comprising the carrier film bearing the particles is used on areas of the article having sharp edges or tight contours and the product comprising the carrier film bearing the interfacing shapes is used on the remaining areas of the article to be covered.
  • the shapes are applied to the area of the article in sheet form, permanently secured to a surface of a carrier film, most preferably by an adhesive.
  • the surface of the carrier film not bearing the shapes is preferably provided with an adhesive, preferably covered by a protective film.
  • the use of sheet material, preferably having an adhesive surface makes the product easier to install.
  • the sheets of shapes may be applied directly to the area of the article to be covered.
  • the area of the article to be covered is cleaned thoroughly to leave a good surface to which the product can be applied.
  • the adhesive surface of the carrier film is preferably pressed onto the article with the shapes facing away from the article.
  • a roller may be used to apply pressure to the sheets to ensure adhesion.
  • Any protective film covering the product may be peeled off leaving the area of the article covered with a plurality of shapes that contact or substantially contact each other.
  • the shapes may alternatively be applied to areas of articles being made by moulding.
  • the sheets of shapes are positioned within the mould with the shapes facing into the mould.
  • the sheets of shapes may be held in position by an adhesive, preferably a heat or pressure activated adhesive.
  • an adhesive preferably a heat or pressure activated adhesive.
  • the use of a heat or pressure activated adhesive allows any necessary repositioning of the sheets before the adhesive is activated.
  • any protective film covering the adhesive surface of the carrier film is removed. Once the moulding process is complete the mould is removed leaving the sheets of shapes adhered to the moulded article, any protective film covering the shapes is preferably then peeled off leaving the area of the article covered with shapes.
  • the area of the article may be treated with the product comprising the carrier film bearing the interfacing shapes or with the product comprising the carrier film bearing the particles or a combination of both types of product.
  • the gaps between the shapes are preferably grouted, most preferably an epoxy grout is used.
  • the present invention further provides an article having an area residing underwater wherein the area is coated with a plurality of shapes formed from copper or a copper nickel alloy and wherein the shapes are arranged on the area of the article such that they contact or substantially contact each other.
  • FIG. 1 shows a plan view of a product of the present invention
  • FIG. 2 shows a plan view of an alternative product of the present invention
  • FIG. 3 shows a cross section through a product of the first aspect of the invention.
  • FIG. 4 shows a cross section through a product of the second aspect of the invention.
  • FIG. 1 shows a plan view of the product 1 of the present invention.
  • the product 1 comprises a carrier film 2 and a plurality of hexagons 3 of Cupronickel 90/10 alloy secured to the carrier film 2 .
  • Cupronickel 90/10 alloy has the composition: Carbon 0.05 maximum Cobalt 0.1 maximum Iron 1.0-2.0 Manganese 0.5-1.0 Nickel 9.0-10.0 Phosphorus 0.02 maximum Lead 0.02 maximum Sulphur 0.05 maximum Tin 0.03 maximum Zinc 0.5 maximum Impurities 0.2 maximum Copper remainder
  • the hexagons 3 are laid out in rows on the carrier film 2 with each row being displaced by half a hexagon when compared with the adjacent row.
  • the hexagons 3 are spaced apart from each other by a maximum of 0.4 mm in any direction which gives rise to a border 4 around each hexagon 3 .
  • the hexagons 3 have a width (w) of 5 mm from one side to the opposing side and a thickness of 0.150 mm.
  • FIG. 2 shows a plan view of an alternative product 5 of the present invention.
  • the product 5 comprises a carrier film 2 and a plurality of spherical particles 7 of Cupronickel 90/10 alloy (composition given above) secured to the carrier film 2 .
  • the particles 7 are secured to the carrier film 2 by means of an appropriate adhesive.
  • the particles 7 are laid out in randomly on the carrier film 2 with each particle contacting or substantially contacting adjacent particles.
  • the particles 7 are spaced apart from each other by a maximum of 0.4 mm in any direction.
  • the particles 7 have a diameter (d) of 0.150 mm.
  • the product 1 is made from a carrier film 2 having a continuous film of Cupronickel 90/10 secured thereto as described below.
  • the interfacing shape pattern is created by chemically etching the un-required copper nickel material with a Hydrochloric Acid based etching solution (etchant) using either an acid resistant ink mask or dry film photo-resist which has the desired pattern developed into it.
  • etchant Hydrochloric Acid based etching solution
  • the etchant masks used are compatible with the epoxy resins and adhesives used to secure the material 1 of the invention to an article, in the present example the article is the hull of a ship.
  • the product 5 is made by unrolling the carrier film 2 from a roll and exposing the side of the carrier film 2 bearing the adhesive to secure the shapes to the carrier film to particles 7 of Cupronickel 90/10.
  • the particles 7 are sprinkled on the side of the carrier film 6 bearing the adhesive under the influence of gravity alone. Excess non-adhered particles 7 are removed from the carrier film 2 by vibration of the film 6 .
  • the film coated with particles 7 is then re-rolled and stored ready for use
  • the carrier film 2 is formed from standard low density polyethylene at 60 microns and has an acrylic adhesive on one surface 2 a which is formulated to hold the hexagons 3 on the film 2 during the manufacturing and installation processes.
  • the carrier film 2 is formed from a waterproof polyester membrane and has a solvent modified acrylic adhesive on one surface 2 a , which is formulated to hold the hexagons 3 on the film 2 .
  • the other surface 2 b of the film 2 is provided with a solvent modified acrylic adhesive to secure the product to an article.
  • a protective film 10 manufactured from standard low density polyethylene is provided and releasably secured to the hexagons 3 by acrylic adhesive.
  • a protective film 11 is provided and releasably secured to the surface 2 b provided with adhesive to protect the adhesive until the product is to be used.
  • the products of the present invention can be applied to existing ship hulls to prevent the need for future antifouling and can also be fitted to new ship hulls as they are manufactured.
  • the hull is first prepared by cleaning to remove all existing aquatic growth.
  • An epoxy primer is applied to the hull by brush to a level of 60 mm above the loaded water line.
  • an epoxy adhesive is applied to the primed hull by brush.
  • the product 1 , 5 is then applied to the hull in sheet form with the Cupronickel 90/10 shapes 3 , 7 contacting the adhesive on the hull.
  • Pressure is applied by roller to ensure that the shapes 3 , 7 are forced onto the adhesive on the hull.
  • the carrier film 2 can be removed by peeling it away from the shapes 3 , 7 to leave the hull of the ship covered in shapes 3 , 7 of Cupronickel 90/10 that contact or substantially contact each other.
  • the prepared mould is coated with a low tack heat sensitive adhesive, which allows the sheets of product 1 , 5 to be positioned, repositioned if necessary and held in position within the mould with the carrier film 2 contacting the adhesive. Once the sheets of product 1 , 5 are correctly positioned a low heat source is applied and the sheets of product 1 , 5 are pressed into the mould using a roller.
  • An epoxy primer is then applied to the exposed face of the product 1 , 5 , i.e. the Cupronickel 90/10 shapes 3 , 7 , by brush and allowed to cure following which an epoxy adhesive is applied.
  • the hull is then prepared by moulding in a typical fashion.
  • the hull moulding When the hull moulding is finished it is withdrawn from the mould. Water can be used to facilitate removal of the hull from the mould.
  • the carrier film 2 can then be peeled off to leave a new moulded hull coated with shapes 3 , 7 of Cupronickel 90/10 alloy that contact or substantially contact each other.
  • the product 5 bearing the particles 7 of Cupronickel 90/10 alloy is generally applied to areas of the hull having sharp edges or tight contours.
  • the use of the particles 7 adhered to the carrier film 6 allows the product 5 to be flexible and more easily used in these areas.
  • the product 1 bearing the interfacing hexagons 3 adhered to the carrier film 2 is generally applied to larger and more easily accessible areas of the ship hull.
  • the hull is first prepared by cleaning to remove all existing aquatic growth.
  • the product 1 , 5 is then applied to the hull in sheet form by removing the protective film 11 to expose the solvent modified acrylic adhesive on the surface 2 b and applying the product to the hull with adhesive surface 2 b contacting the hull.
  • Pressure is applied by roller to ensure that the sheets of shapes 3 , 7 are secured by adhesive to the hull.
  • the protective film 10 can then be removed by peeling it away from the shapes 3 , 7 to leave the hull of the ship covered in shapes 3 , 7 of Cupronickel 90/10 that contact or substantially contact each other.
  • the prepared mould is coated with a low tack heat sensitive adhesive, which allows the sheets of product 1 , 5 to be positioned, repositioned if necessary and held in position within the mould with the carrier film 2 , 6 contacting the adhesive. Once the sheets of product 1 , 5 are correctly positioned a low heat source is applied and the sheets of product 1 , 5 are pressed into the mould using a roller.
  • the protective sheet 11 is removed from the surface 2 b of the carrier film to expose the solvent modified adhesive.
  • the hull is then prepared by moulding in a typical fashion.
  • the hull moulding When the hull moulding is finished it is withdrawn from the mould. Water can be used to facilitate removal of the hull from the mould.
  • the protective film 10 can then be peeled off to expose shapes 3 , 7 and leave a new moulded hull coated with shapes 3 , 7 of Cupronickel 90/10 alloy that contact or substantially contact each other.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Laminated Bodies (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
US10/486,743 2001-08-15 2002-07-29 Hull coverings Abandoned US20040240944A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0119853.0A GB0119853D0 (en) 2001-08-15 2001-08-15 Hull coverings
GB0119853.0 2001-08-15
PCT/GB2002/003472 WO2003016046A1 (en) 2001-08-15 2002-07-29 Hull coverings

Publications (1)

Publication Number Publication Date
US20040240944A1 true US20040240944A1 (en) 2004-12-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US10/486,743 Abandoned US20040240944A1 (en) 2001-08-15 2002-07-29 Hull coverings

Country Status (9)

Country Link
US (1) US20040240944A1 (ko)
EP (1) EP1420948A1 (ko)
JP (1) JP2004538201A (ko)
CN (1) CN1571725A (ko)
CA (1) CA2457031A1 (ko)
GB (1) GB0119853D0 (ko)
NZ (1) NZ531013A (ko)
WO (1) WO2003016046A1 (ko)
ZA (1) ZA200401511B (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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WO2007086758A1 (en) * 2006-01-24 2007-08-02 Charles Caulder Bree Antifouling system for thermoplastic boats and other floating vessels and structures
US8166903B1 (en) 2009-06-08 2012-05-01 The United States Of America As Represented By The Secretary Of The Navy Deadrise-altering adjunct for marine hull bottom

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WO2003016046A1 (en) 2003-02-27
EP1420948A1 (en) 2004-05-26
CA2457031A1 (en) 2003-02-27
CN1571725A (zh) 2005-01-26
GB0119853D0 (en) 2001-10-10
JP2004538201A (ja) 2004-12-24
NZ531013A (en) 2004-06-25

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