| http://www.w3.org/ns/prov#value | - Where R10, R13, R14, R15 or R16 is a hydrocarbyl group e.g. of 1-300 carbons it is preferably derived from a polyolefin which is derived from a C1 -C8 terminal or internal olefin e.g. polyethylene, polypropylene or polyisobutene preferably polyisobutene.
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