초록 ▼

Sports board (15) comprising an elongated expanded closed-cell polyolefin foam layer (16) having a foam thickness and opposed surfaces (18, 19), a first polyolefin sheet layer (23) having a thickness less than the foam thickness and having an inner surface (25) and an outer surface (24), an intermed

Sports board (15) comprising an elongated expanded closed-cell polyolefin foam layer (16) having a foam thickness and opposed surfaces (18, 19), a first polyolefin sheet layer (23) having a thickness less than the foam thickness and having an inner surface (25) and an outer surface (24), an intermediate metallocene-based polyolefin layer (20) having an inner surface (22) and an outer surface (21) and a thickness less than the foam thickness, the intermediate layer bonded on its inner surface to the foam layer and bonded on its outer surface to the inner surface of the first layer. The intermediate layer may comprise an ethylene-alpha olefin copolymer and may comprise a copolymer of ethylene and octene.

대표청구항 ▼

What is claimed is: 1. A sports board comprising: an elongated expanded closed-cell polyolefin foam layer having a foam thickness, a foam density and opposed surfaces; a first polyolefin non-foam layer having a thickness less than said foam thickness, a density greater than said foam density and ha

What is claimed is: 1. A sports board comprising: an elongated expanded closed-cell polyolefin foam layer having a foam thickness, a foam density and opposed surfaces; a first polyolefin non-foam layer having a thickness less than said foam thickness, a density greater than said foam density and having an inner surface and an outer surface relative to said foam layer; an intermediate non-foam metallocene-based polyolefin layer having an inner surface and an outer surface relative to said foam layer, a thickness less than said foam thickness and a density greater than said foam density; said intermediate layer bonded on said inner surface to said foam layer and bonded on said outer surface to said inner surface of said first layer. 2. The board set forth in claim 1, wherein said intermediate layer comprises an ethylene-alpha olefin copolymer. 3. The board set forth in claim 2, wherein said intermediate layer comprises a copolymer of ethylene and octene. 4. The board set forth in claim 1, wherein said foam layer comprises a homopolymer or copolymer of polyethylene, polypropylene and ethyl vinyl acetate. 5. The board set forth in claim 1, wherein said first layer comprises a homopolymer or copolymer of polyethylene and polypropylene. 6. The board set forth in claim 1, and further comprising a graphically imprinted layer bonded to said outer surface of said first layer. 7. A sports board comprising: an elongated expanded closed-cell polyolefin foam layer having a foam thickness, a foam density and opposed surfaces; a non-foam mesh layer having a pattern defined by thermoplastic material and openings in said material; an intermediate non-foam metallocene-based polyolefin layer between said foam layer and said mesh layer and having a density greater than said foam density. 8. The sports board set forth in claim 7, wherein said intermediate layer comprises an ethylene-alpha olefin copolymer. 9. The board set forth in claim 7, wherein said intermediate layer comprises a copolymer of ethylene and octene. 10. The board set forth in claim 7, wherein said foam layer comprises a homopolymer or copolymer of polyethylene, polypropylene and ethyl vinyl acetate. 11. The board set forth in claim 7, and further comprising a polyolefin film layer thermally bonded to said mesh layer.