Sailboards and surfboards as well as manufacturing process thereof
AssigneeTAA Technique and Administration AG
InventorWolfgang Frank
Life of this patent
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Abstract
A method of making a sailboard or surfboard, in which a prefabricated foam core has fibrous material wound about it and a polyurethane resin especially set with a reaction retarder is poured onto the fibrous material, whereupon the thus treated foam core is inserted in a molding tool and the mold is closed for curing the polyurethane resin. Desirably, the mold is lined with a surface layer, particularly a deep drawn thermoplastic film, before the treated foam core is inserted. In this way one can make low-weight boards of high strength with relatively low production and material costs.
Claims5
A sailboard or surfboard comprising a foam core and a shell of fiber-reinforced synthetic resin and a surface layer, characterized in that polyurethane resin is provided as synthetic resin and said surface layer is an intimately adhering deep drawn thermoplastic film with a thickness of 0.1 to 0.5 mm applied during the preparation of said sailboard or surfboard.
Dependencies are inferred from the claim text.