A formulation includes a polymeric material, a nucleating agent, a blowing, and a surface active agent. The formulation can be used to form a container.

Polymeric material for an insulated container

A container is formed to include and interior region and a mouth opening into the interior region The container includes a floor, a side wall coupled to the floor to define the interior region between the floor and the side wall, and artwork on the side wall

Process for forming an insulated container having artwork

Methods of forming polymeric foams are provided. The methods may involve co-extruding a foam layer along with one or more skin layers. In some embodiments, the skin layer(s) may be removed (e.g., in a peeling operation); while, in other embodiments, the skin layer(s) may form part of the final article. The methods are particularly well suited for producing polymeric foams from polymeric materials that are considered to be difficult to foam by those of skill in the art.

Method of forming polymeric foam and related foam articles

The precompressed sealing tape for sealing a joint has an elastically re-expandable foam strip The sealing tape also has a sheet-like wrapping, which at least partially surrounds the foam strip, and a strip-like element, which is arranged in the area of a lower transverse surface of the foam strip and which has greater flexural strength than the foam strip A first section of the sheet-like wrapping is arranged between the lower transverse surface of the foam strip and the strip-like element

Precompressed sealing tape

The present invention pertains to a skin-covered foamed molded article of expanded propylene resin beads having excellent lightness in weight, mechanical properties and appearance. The present invention provides a skin-covered foamed molded article of propylene resin expanded beads, with the skin covering substantially the entire surface of the molded article of the expanded beads. The skin, within which the molded article of expanded propylene resin beads is placed, is a propylene resin hollow molded body obtained by blow molding. A base resin of which the skin is formed comprises a propylene resin having a partial heat of fusion in a temperature range between 80 and 140° C. of at least 15 J/g and a ratio of the partial heat of fusion to a total heat of fusion (partial heat of fusion/total heat of fusion) of at least 0.2 as measured by heat flux differential scanning calorimetry. The skin has a thickness in the range of 0.3 to 3.5 mm, and the molded article of expanded propylene resin beads has an apparent density in the range of 0.015 to 0.15 g/cm 3 . The skin is fuse-bonded to the molded article of expanded beads, and the expanded beads from which the molded article is formed are fuse-bonded to each other.

Skin-covered propylene resin foamed molded article

One or more external surfaces of an extruded foam are coated by co-extruding a skin of polymer on the surface to reduce the diffusion the foaming gases out of the cells of the solidifying polymer foam. The sealing effect can involve coating one side of the extruded foam (AB foam) or both sides (ABA form). The skins can be solid or foamed. Alternatively, a cylinder is formed from an annular die and, preferably, a cylindrical cooling mandrel. By extruding and drawing the cylinder of foam onto a cooled cylindrical mandrel, which expands the diameter of the cylinder, the optimum physical properties of the structure can be achieved. This is because the foam structure is stretched in longitudinal and lateral directions. Preferable, the foaming polymer has 'inherent melt strength' and 'strain hardening' so that the foam cells are more consistent in size and shape. The preferred polymers are polypropylene or polystyrene.

Polypropylene foam and foam core structure

This invention is a HDPE foam core laminate structure with an HLMI-HDPE (high load melt high-index density polyethylene) surface formed or thermoformed into structures including reusable pallets and/or containers. The laminate structure comprises an HDPE foamed sheet core having a solid or foamed material on at least one surface. Preferably, high-molecular-weight HDPE skin surfaces are employed to yield skins with high impact strength, and fractional melt, medium-molecular-weight HDPE (MI=0.2-0.4 g/10 min) are used for the foam layer.

Robert W Beckwith

Papers

Polypropylene foam and foam core structure

Hdpe (high density polyethylene) foam core laminate structure