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US 2017/0001694 A1Published application
Sportsboard structures
AssigneesNOVA Chemicals Inc., Int Softboards Technology, LLC
InventorsLouis G. Hayward, Christopher Griffin, Paul E. Arch
Life of this patent
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Abstract
A sports board that includes an elongate, water impervious, thermoplastic foam core having an upper surface and an under surface; an upper layer covering at least a portion of the upper surface; and an under layer covering at least a portion of the under surface. The foam core is made of a foamed material having a water absorption (measured according to ASTM C-272) of less than 2 volume percent.
Claims16
A surfboard comprising:
- (a) an elongate, water resistant, thermoplastic foam core having an upper surface and an under surface, a nose end, a tail end, and a stringer encased in the foam core extending from the nose end to the tail end;
- (b) an upper layer covering at least a portion of the upper surface;
- and
- (c) an under layer covering at least a portion of the under surface;
- wherein the foam core is made of a foam material 50 to 100 percent based on the weight of the foam material of expanded and fused interpolymer resin particles containing from about 20% to about 80% by weight of a polyolefin and from about 80% to about 20% by weight;
- wherein the density of the foam core is from about 0.02 g/cc to about 0.64 g/cc and the density of the foam core is higher at the nose end and tail end as compared with the rest of the foam core;
- wherein the foam core comprises a skin, consisting of the foam material, formed on the upper surface and under surface;
- wherein the foam core has a water absorption (measured according to ASTM C-272) of less than 2 volume percent
- wherein the upper layer and under layer comprise a cloth comprising a fiber selected from the group consisting of carbon fibers, graphite fibers, aramid fibers, metal fibers, glass fibers, silicon carbide fibers, polyester fibers, composite fibers, and fiberglass;
- and
- wherein the cloth is encased in a laminating resin, which forms a bond to the thermoplastic foam core.
8 more elements
2-4. (canceled)
9-10. (canceled)
13-25. (canceled)
A sports board comprising
- (a) an elongate, water resistant, thermoplastic foam core having an upper surface, an under surface, a nose end and a tail end;
- (b) an upper layer covering at least a portion of the upper surface;
- and
- (c) an under layer covering at least a portion of the under surface;
- wherein the foam core is made of a foam material comprising 50 to 100 percent based on the weight of the foam material of expanded and fused interpolymer resin particles containing from about 20% to about 80% by weight of a polyolefin and from about 80% to about 20% by weight;
- wherein the density of the foam core is from about 0.02 g/cc to about 0.64 g/cc and the density of the foam core is higher at the nose end and tail end as compared with the rest of the foam core;
- wherein the foam core comprises a skin, consisting of the foam material, formed on the upper surface and under surface;
- wherein the foam core has a water absorption of less than 2 volume percent measured according to ASTM C-272;
- wherein the upper layer and under layer comprise a cloth comprising a fiber selected from the group consisting of carbon fibers, graphite fibers, aramid fibers, metal fibers, glass fibers, silicon carbide fibers, polyester fibers, composite fibers, and fiberglass;
- and
- wherein the cloth is encased in a laminating resin, which forms a bond to the thermoplastic foam core.
8 more elements
Dependencies are inferred from the claim text.