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WO2007118477A1 - Coque inférieure d'un bateau - Google Patents

Coque inférieure d'un bateau Download PDF

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Publication number
WO2007118477A1
WO2007118477A1 PCT/EP2005/053483 EP2005053483W WO2007118477A1 WO 2007118477 A1 WO2007118477 A1 WO 2007118477A1 EP 2005053483 W EP2005053483 W EP 2005053483W WO 2007118477 A1 WO2007118477 A1 WO 2007118477A1
Authority
WO
WIPO (PCT)
Prior art keywords
lower hull
layer
silicone
hull
boat
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.)
Ceased
Application number
PCT/EP2005/053483
Other languages
English (en)
Inventor
Bruno Meroni
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Anticipated expiration legal-status Critical
Publication of WO2007118477A1 publication Critical patent/WO2007118477A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention relates to a boat lower hull.
  • the hull can be constructed variously of glass reinforced plastic, metal, wood or other materials.
  • a hull with its lower hull constructed of glass reinforced plastic this being the mostly used system.
  • a layer of gelcoat is applied to the glass reinforced plastic layer to cover, protect and above all to impermeabilize the lower hull, in order to prevent osmosis which could structurally damage the lower hull.
  • the antivegetative paint comprises substances that prevent or hinder the attachment of algae, microorganisms, barnacles etc. to the lower hull; this is necessary because foreign elements attached to the lower hull hinder the flow of water along the hull, so worsening the nautical characteristics (speed and manoeuvrability) of the boat.
  • the antivegetative paint applied to the lower hull is slowly released into the external environment; this means that the antivegetative layer has to be periodically renewed (usually annually) by grounding the boat with all its related costs.
  • the antivegetative paint contains toxic and poisonous, and hence pollutant, substances. It is on the basis of this principle that the antivegetative paint prevents any formation of life on its surface during the time that it remains effective.
  • the technical aim of the present invention is therefore to provide a lower hull for boats by which the aforesaid technical drawbacks of the state of the art are eliminated, while improving their hydrodynamic performance.
  • an object of the invention is to provide a lower hull which achieves high hydrodynamic performance for boats, with consequent reduction in fuel consumption and less atmospheric pollution.
  • a second object of the invention is to provide a lower hull which does not release toxic poisonous substances into the sea and which more generally is non-pollutant.
  • a third object is to provide a lower hull which prevents or hinders attachment of algae, barnacles, microorganisms, etc.
  • a fourth object is to substantially reduce the frequency of lower hull maintenance.
  • the lower hull of the invention presents a particularly smooth outer surface in contact with the sea water to facilitate sea water flow.
  • FIG. 1 is a perspective view of a boat presenting a lower hull according to the present invention
  • Figure 2 is a section through a portion of the lower hull of the boat of Figure 1 ;
  • FIG. 3 is a section through a different embodiment of the boat lower hull. Said figures show a boat lower hull, in which the boat is indicated overall by the reference numeral 1 and the lower hull by the reference numeral 2.
  • the lower hull 2 comprises a structure 3 formed of glass reinforced plastic defining the hull, covered externally by a silicone layer 4, applied for example by spraying, by a spatula or a brush; this silicone layer is of constant or variable thickness along the lower hull, for example in proximity to the keel the layer is thicker whereas in proximity to the water line the layer is thinner.
  • the silicone layer 4 is formed of silicone from the family comprising RTV, LSR, silicone resins, HTV in solution or other resins, suitably formulated.
  • the lower hull 2 comprises a layer of primer 5, interposed between the hollow structure 3 and the silicone layer 4.
  • This primer layer 5 is for example of silane or other type.
  • the silicone layer 4 could contain antivegetative additive.
  • the molecular structure of the silicone allows gradual release, to obtain lesser pollution than current systems.
  • the silicone layer 4 provides the lower hull with a surface which in addition to facilitating water flow is also soft. It has been surprisingly verified that this facilitates water flow, enabling very high speeds to be obtained with very low fuel consumption.
  • the silicone also hinders adherence to its surface by virtue of its natural antiadherence and slidability, hence even if certain algae or microorganisms manage to adhere to the lower hull of the invention, they are immediately detached on starting the boat.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Paints Or Removers (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne la coque inférieure (2) de bateaux (1) qui comprend une structure creuse (3) recouverte sur l'extérieur d'une couche de silicone souple (4).
PCT/EP2005/053483 2004-07-28 2005-07-19 Coque inférieure d'un bateau Ceased WO2007118477A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2004A001541 2004-07-28
ITMI20041541 ITMI20041541A1 (it) 2004-07-28 2004-07-28 Carena di imbarcazioni

Publications (1)

Publication Number Publication Date
WO2007118477A1 true WO2007118477A1 (fr) 2007-10-25

Family

ID=35064900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/053483 Ceased WO2007118477A1 (fr) 2004-07-28 2005-07-19 Coque inférieure d'un bateau

Country Status (2)

Country Link
IT (1) ITMI20041541A1 (fr)
WO (1) WO2007118477A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1477055A (en) * 1973-11-23 1977-06-22 Goodyear Tire & Rubber Protective coating for vessel in contact with freezing water
GB2141436A (en) * 1983-06-16 1984-12-19 Chugoku Marine Paints Anti-pollution coating composition
EP0329375A1 (fr) * 1988-02-15 1989-08-23 Courtaulds Coatings (Holdings) Limited Inhibition de salissure marine
US5593732A (en) * 1992-03-06 1997-01-14 The United States Of America As Represented By The Secretary Of The Navy Nontoxic antifouling systems
US5691019A (en) * 1995-05-01 1997-11-25 General Electric Company Foul release system
WO1999003424A1 (fr) * 1997-07-21 1999-01-28 Vittoria Fruci Procede pour preparer des polymeres silicones
US6413446B1 (en) * 1998-06-25 2002-07-02 Bayer Aktiengesellschaft Antifouling agents, their production and use, and antifouling coating produced therefrom

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1477055A (en) * 1973-11-23 1977-06-22 Goodyear Tire & Rubber Protective coating for vessel in contact with freezing water
GB2141436A (en) * 1983-06-16 1984-12-19 Chugoku Marine Paints Anti-pollution coating composition
EP0329375A1 (fr) * 1988-02-15 1989-08-23 Courtaulds Coatings (Holdings) Limited Inhibition de salissure marine
US5593732A (en) * 1992-03-06 1997-01-14 The United States Of America As Represented By The Secretary Of The Navy Nontoxic antifouling systems
US5691019A (en) * 1995-05-01 1997-11-25 General Electric Company Foul release system
WO1999003424A1 (fr) * 1997-07-21 1999-01-28 Vittoria Fruci Procede pour preparer des polymeres silicones
US6413446B1 (en) * 1998-06-25 2002-07-02 Bayer Aktiengesellschaft Antifouling agents, their production and use, and antifouling coating produced therefrom

Also Published As

Publication number Publication date
ITMI20041541A1 (it) 2004-10-28

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