prov:value
| - Representative examples of potentially useful polymeric backing materials for polymeric foam layers or solid polymeric film layers include polyolefms, e.g., polyethylene, including high density polyethylene, low density polyethylene, linear low density polyethylene, and linear ultra low density polyethylene, polypropylene and polybutylenes; vinyl copolymers, e.g., polyvinyl chlorides, both plastic
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