prov:value
| - Preferred materials include: polyolefins, e.g. low, medium or high density polyethylene; polypropylene; ethylene copolymers, e.g. with alpha olefins such as propylene, 1-butene, 1-hexene or 1-octene, or vinyl acetate or other vinyl esters or methyl or ethyl acrylate; polyamides, especially Nylon materials, e.g. Nylon 6, Nylon 6,6, Nylon 11 or Nylon 12 or those disclosed in European Patent Specific
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