| http://www.w3.org/ns/prov#value | - Preferably, the structured oils and more especially those structured by polyarnides and in particular those of formulae (I) or polyurethanes or polyureas or polyurea-urethanes are nonpolar oils and more especially an oil or a mixture of oils of the hydrocarbonaceous,type of mineral or synthetic origin chosen in particular from hydrocarbons, in particular alkanes, such as parleam oil, isoparaffins,
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