| http://www.w3.org/ns/prov#value | - Copolymers of ethylene and propylene and ethylene and propylene with another ??-olefin such as 1-butene, 1-hexene, 1-octene, 2-methyl-1-propene, 3-methyl-1-pentene, 4-methyl-1-pentene, 5-methyl-1-hexene or mixtures thereof are also contemplated.
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