Oil-soluble esters of copolymers of maleic anhydride

摘要

The invention relates to products of the esterification of copolymers based on maleic anhydride/ethylenically unsaturated monomers by means of alcohols having a chain length of C16-C24 and/or products of the chain extension thereof by means of ethylene oxide or propylene oxide. The products are suitable as pour-point depressants for paraffin-containing mineral oils.