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Kongens Lyngby, Denmark

Grant
Agency: Cordis | Branch: FP7 | Program: CP-FP | Phase: SST.2011.1.1-1. | Award Amount: 3.70M | Year: 2011

Adhesion of Microorganisms on hulls, Algae to the coated surface, is the precursor of later fixation of macro-organisms, which causes serious hydrodynamic problems. Research and innovative developments of environmental friend surface protection is the main goal of the present project. The basic idea concerns the modification of usual hulls by providing a new antifouling coating, by fixing covalently bioactive molecules, which can provide biocide activity, in order to avoid leaching and to promote a long-term effect of surface protection. This requires the binding through a molecular bridge and to study the effective concentration of the binded active compounds. The new surface coating technology will by this way minimize the surface roughness and improve hydrodynamic properties of hulls.


The present application discloses a fouling release cured paint coat comprising a polysiloxane-based binder matrix constituting at least 40% by dry weight of the coat, and one or more enzymes. The application further discloses a kit for preparing a fouling release coat, a coating composition comprising a polysiloxane-based binder system comprising one or more polysiloxane components modified with hydrophilic oligomer/polymer moieties, and one or more enzymes, and a coating composition comprising a polysiloxane-based binder system, 0.01-20% by dry weight of one or more hydrophilic-modified polysiloxane oils, and one or more enzymes.


The present invention relates to a method for the establishment of a crack resistant epoxy paint coat and paint compositions suitable for said method. The method is developed for use in ballast tanks e.g. a ballast tank of a vessel. The method involves the steps: (i) applying a paint composition comprising an epoxy-based binder system onto the surface thereby forming a curable paint film on the surface, and (ii) allowing the curable paint film to cure thereby forming the epoxy paint coat. The paint composition has a viscosity of at the most 140 KU, when ready to be applied. The paint composition comprises 35-80% by solids volume of the paint of an epoxy-based binder system having a ratio between the hydrogen equivalents and the epoxy equivalents in the range of 20:100 to 120:100. The paint composition furthermore comprises 0.5-30% by solids volume of the paint of one or more fibres. The fibres have an average length, of at the most 250 m.


The present invention relates to a method for the establishment of a crack resistant epoxy paint coat and paint compositions suitable for said method. The method is developed for use in ballast tanks e.g. a ballast tank of a vessel. The method involves the steps: (i) applying a paint composition comprising an epoxy-based binder system onto the surface thereby forming a curable paint film on the surface, and (ii) allowing the curable paint film to cure thereby forming the epoxy paint coat. The paint composition has a viscosity of at the most 140 KU, when ready to be applied. The paint composition comprises 35-80% by solids volume of the paint of an epoxy-based binder system having a ratio between the hydrogen equivalents and the epoxy equivalents in the range of 20:100 to 120:100. The paint composition furthermore comprises 0.5-30% by solids volume of the paint of one or more fibres. The fibres have an average length, of at the most 250 m.


Patent
Hempel AS | Date: 2014-03-20

The present application discloses novel multilayer polysiloxane-based fouling control coating systems having included therein active constituents like biocides and/or enzymes. Further, the polysiloxane-based layers may individually have included as a part thereof hydrophilic oligomer/polymer moieties, and/or said may further comprising one or more hydrophilic-modified polysiloxane oils.

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