Abstract: A buoy comprising: an annular upper portion disposed on a lower portion; a drain hole disposed in the upper portion proximate to the lower portion; a handhold disposed in the upper portion distal to the lower portion; an attachment member disposed in the lower portion and protruding from a bottom of the lower portion, wherein the bottom is opposite the upper portion; and wherein at least one of the upper portion and the lower portion comprises a closed cell foam.

Abstract: A buoy comprising: an annular upper portion disposed on a lower portion; a drain hole disposed in the upper portion proximate to the lower portion; a handhold disposed in the upper portion distal to the lower portion; an attachment member disposed in the lower portion and protruding from a bottom of the lower portion, wherein the bottom is opposite the upper portion; and wherein at least one of the upper portion and the lower portion comprises a closed cell foam.

Abstract: An impact and energy absorbing mat is produced by extruding sheets of resilient compressible foamed polymeric resin sheets, preferably of a foamed ionomer, and having self formed skins on opposite faces. The sheets are stacked and the stack sliced along planes perpendicular to the sheets by hot wires to fuse the borders of contiguous sheets and form individual coherent slabs. Each slab is sandwiched between preferably similar polymeric resin films which are heated by hot plates to fuse the films to the slab surfaces and further fuse the skin borders to each other. Alternatively, the films may be omitted and self skins formed by the hot plate. The resulting mat includes side by side narrow foamed resilient resin strips having side skins, the borders of contiguous skins being fused to each other and the joined strips having their opposite faces covered by self or film formed skins fused thereto. The mat possesses unexpected superior energy and impact and other desirable properties.

Abstract: An impact-absorbing laminate is provided comprising a rigid support layer and an impact-absorbing foam layer fused to at least one surface of the support layer, the impact-absorbing foam layer having a relatively high density outer self-skin on the surface opposing the surface fused to the support layer, the foam and the support layer both being formed of ionomer. The method for manufacturing this impact-absorbing article, comprises the fusing of a resilient foam layer and a non-cellular, relativey rigid, polymer sheet by applying heat to the layers and maintaining the sheets at such elevated temperature, in contact, for a time sufficient to fuse the foam layer and sheet together. A relatively dense self-skin layer is formed on the surface of the foam opposite that in contact with the polymer layer. The ratio of the overall density of the final fused laminate to the unfused layers is most preferably less than about 1.25.