Foam product for recreational products
AssigneeFoam Design Consumer Products, Inc.
InventorsJohn S. D'Luzansky, Anthony L. Panzica, Steven B. Ruble, Herman A. Smith
Life of this patent
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Abstract
The present invention relates to surf boards and bodyboards and the like used for water sports and wherein the board includes a core foam which is a closed pore or closed cell foam to which is directly bonded an upper and lower skin. To achieve a substantially high integrity bond, an intermediate layer is used composed of a mixture of the polymeric material of the foam and the different polymeric material of the skins. The foam may be polypropylene expanded bead foam while the skins may be of high density polyethylene. Procedures are also disclosed for forming such products as well as procedures for providing rocker, an important characteristic of such boards.
Claims8
An improved laminated closed cell foam product for use in water sports comprising:
- a buoyant closed cell foam core of polypropylene material having a predetermined thickness,
- an upper cover of polyethylene material having a thickness less than said predetermined thickness and being heat bonded to said closed cell foam core,
- a lower cover of polyethylene material having a thickness less than said predetermined thickness and being heat bonded to said closed cell foam core,
- a separate layer of intermediate polymeric material heat bonded to each of said upper cover and said foam core and said lower cover and said foam core, and
- said separate layer of intermediate polymeric material being a mixture of 65% polypropylene and 35% polyethylene, by weight, whereby a bond is formed which is of a peel strength greater than the tear strength of said foam core or said upper and lower covers.
Dependencies are inferred from the claim text.