| http://www.w3.org/ns/prov#value | - As the polyethylene or a copolymer composed mainly of ethylene which is prepared using a single site catalyst, use may be made of one or more substances selected from polyethylene, for instance, high density polyethylene (polyethylene prepared in a low pressure method), low density polyethylene (polyethylene prepared in a high pressure method), linear low density polyethylene (copolymers of ethyle
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