| http://www.w3.org/ns/prov#value | - For the purpose of the present invention, polyolefin is intended to denote the homopolymers and copolymers with at least one comonomer of the olefins containing from 2 to 20 carbon atoms and in particular from 2 to 6 carbon atoms, such as ethylene, propylene, 1-butene, 4-methyl-1-pentene and 1-hexene.
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