| http://www.w3.org/ns/prov#value | - g them, and compositions and processes employing themEP2277860A122 Jul 200926 Jan 2011Stepan CompanyCompositions comprising sulfonated estolides and alkyl ester sulfonates, methods of making them, and compositions and processes employing themWO2009094336A220 Jan 200930 Jul 2009Stepan CoSulfonated estolides and other derivatives of fatty acids, methods of making them, and compositions and processes
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