| http://www.w3.org/ns/prov#value | - Examples of suitable polyolefins, both plastic and elastomeric, include low or high density polyethylene, polypropylene, polybutene-l, poly-3-methylbutene-l, poly-4-methylpentene-l, copolymers of monoolefins with other olefins (monoor diolefins) or vinyl monomers such as ethylene-propylene copolymers or with one or more additional monomers, i.e., EPDM, ethylene/butylene copolymer, ethylene/vinyl a
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